annotate src/video/SDL_blit_A.c @ 2173:26233707bc94

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author Sam Lantinga <slouken@libsdl.org>
date Wed, 11 Jul 2007 14:51:49 +0000
parents e1a70460c354
children a353684c7cc1
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2006 Sam Lantinga
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4
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5 This library is free software; you can redistribute it and/or
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6 modify it under the terms of the GNU Lesser General Public
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7 License as published by the Free Software Foundation; either
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8 version 2.1 of the License, or (at your option) any later version.
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9
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10 This library is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 Lesser General Public License for more details.
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14
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15 You should have received a copy of the GNU Lesser General Public
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16 License along with this library; if not, write to the Free Software
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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18
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19 Sam Lantinga
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20 slouken@libsdl.org
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21 */
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22 #include "SDL_config.h"
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23
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24 #include "SDL_video.h"
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25 #include "SDL_blit.h"
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26
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27 /*
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28 In Visual C, VC6 has mmintrin.h in the "Processor Pack" add-on.
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29 Checking if _mm_free is #defined in malloc.h is is the only way to
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30 determine if the Processor Pack is installed, as far as I can tell.
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31 */
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32
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33 #if SDL_ASSEMBLY_ROUTINES
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34 # if defined(__GNUC__) && (defined(__i386__) || defined(__x86_64__))
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35 # define MMX_ASMBLIT 1
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36 # define GCC_ASMBLIT 1
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37 # elif defined(_MSC_VER) && defined(_M_IX86)
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38 # if (_MSC_VER <= 1200)
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39 # include <malloc.h>
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40 # if defined(_mm_free)
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41 # define HAVE_MMINTRIN_H 1
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42 # endif
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43 # else /* Visual Studio > VC6 always has mmintrin.h */
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44 # define HAVE_MMINTRIN_H 1
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45 # endif
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46 # if HAVE_MMINTRIN_H
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47 # define MMX_ASMBLIT 1
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48 # define MSVC_ASMBLIT 1
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49 # endif
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50 # endif
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51 #endif /* SDL_ASSEMBLY_ROUTINES */
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52
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53 /* Function to check the CPU flags */
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54 #include "SDL_cpuinfo.h"
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55 #if GCC_ASMBLIT
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56 #include "mmx.h"
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57 #elif MSVC_ASMBLIT
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58 #include <mmintrin.h>
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59 #include <mm3dnow.h>
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60 #endif
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61
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62 /* Functions to perform alpha blended blitting */
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63
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64 /* N->1 blending with per-surface alpha */
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65 static void
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66 BlitNto1SurfaceAlpha(SDL_BlitInfo * info)
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67 {
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68 int width = info->d_width;
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69 int height = info->d_height;
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70 Uint8 *src = info->s_pixels;
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71 int srcskip = info->s_skip;
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72 Uint8 *dst = info->d_pixels;
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73 int dstskip = info->d_skip;
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74 Uint8 *palmap = info->table;
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75 SDL_PixelFormat *srcfmt = info->src;
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76 SDL_PixelFormat *dstfmt = info->dst;
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77 int srcbpp = srcfmt->BytesPerPixel;
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78
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79 const unsigned A = srcfmt->alpha;
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80
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81 while (height--) {
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82 /* *INDENT-OFF* */
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83 DUFFS_LOOP4(
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84 {
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85 Uint32 Pixel;
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86 unsigned sR;
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87 unsigned sG;
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88 unsigned sB;
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89 unsigned dR;
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90 unsigned dG;
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91 unsigned dB;
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92 DISEMBLE_RGB(src, srcbpp, srcfmt, Pixel, sR, sG, sB);
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93 dR = dstfmt->palette->colors[*dst].r;
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94 dG = dstfmt->palette->colors[*dst].g;
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95 dB = dstfmt->palette->colors[*dst].b;
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96 ALPHA_BLEND(sR, sG, sB, A, dR, dG, dB);
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97 dR &= 0xff;
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98 dG &= 0xff;
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99 dB &= 0xff;
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100 /* Pack RGB into 8bit pixel */
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101 if ( palmap == NULL ) {
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102 *dst =((dR>>5)<<(3+2))|
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103 ((dG>>5)<<(2))|
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104 ((dB>>6)<<(0));
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105 } else {
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106 *dst = palmap[((dR>>5)<<(3+2))|
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107 ((dG>>5)<<(2)) |
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108 ((dB>>6)<<(0))];
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109 }
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110 dst++;
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111 src += srcbpp;
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112 },
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113 width);
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114 /* *INDENT-ON* */
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115 src += srcskip;
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116 dst += dstskip;
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117 }
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118 }
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119
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120 /* N->1 blending with pixel alpha */
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121 static void
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122 BlitNto1PixelAlpha(SDL_BlitInfo * info)
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123 {
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124 int width = info->d_width;
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125 int height = info->d_height;
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126 Uint8 *src = info->s_pixels;
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127 int srcskip = info->s_skip;
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128 Uint8 *dst = info->d_pixels;
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129 int dstskip = info->d_skip;
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130 Uint8 *palmap = info->table;
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131 SDL_PixelFormat *srcfmt = info->src;
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132 SDL_PixelFormat *dstfmt = info->dst;
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133 int srcbpp = srcfmt->BytesPerPixel;
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134
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135 /* FIXME: fix alpha bit field expansion here too? */
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136 while (height--) {
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137 /* *INDENT-OFF* */
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138 DUFFS_LOOP4(
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139 {
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140 Uint32 Pixel;
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141 unsigned sR;
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142 unsigned sG;
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143 unsigned sB;
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144 unsigned sA;
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145 unsigned dR;
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146 unsigned dG;
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147 unsigned dB;
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148 DISEMBLE_RGBA(src,srcbpp,srcfmt,Pixel,sR,sG,sB,sA);
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149 dR = dstfmt->palette->colors[*dst].r;
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150 dG = dstfmt->palette->colors[*dst].g;
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151 dB = dstfmt->palette->colors[*dst].b;
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152 ALPHA_BLEND(sR, sG, sB, sA, dR, dG, dB);
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153 dR &= 0xff;
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154 dG &= 0xff;
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155 dB &= 0xff;
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156 /* Pack RGB into 8bit pixel */
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157 if ( palmap == NULL ) {
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158 *dst =((dR>>5)<<(3+2))|
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159 ((dG>>5)<<(2))|
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160 ((dB>>6)<<(0));
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161 } else {
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162 *dst = palmap[((dR>>5)<<(3+2))|
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163 ((dG>>5)<<(2)) |
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164 ((dB>>6)<<(0)) ];
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165 }
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166 dst++;
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167 src += srcbpp;
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168 },
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169 width);
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170 /* *INDENT-ON* */
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171 src += srcskip;
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172 dst += dstskip;
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173 }
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174 }
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175
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176 /* colorkeyed N->1 blending with per-surface alpha */
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177 static void
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178 BlitNto1SurfaceAlphaKey(SDL_BlitInfo * info)
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179 {
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180 int width = info->d_width;
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181 int height = info->d_height;
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182 Uint8 *src = info->s_pixels;
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183 int srcskip = info->s_skip;
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184 Uint8 *dst = info->d_pixels;
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185 int dstskip = info->d_skip;
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186 Uint8 *palmap = info->table;
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187 SDL_PixelFormat *srcfmt = info->src;
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188 SDL_PixelFormat *dstfmt = info->dst;
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189 int srcbpp = srcfmt->BytesPerPixel;
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190 Uint32 ckey = srcfmt->colorkey;
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191
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192 const int A = srcfmt->alpha;
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193
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194 while (height--) {
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195 /* *INDENT-OFF* */
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196 DUFFS_LOOP(
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197 {
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198 Uint32 Pixel;
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199 unsigned sR;
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200 unsigned sG;
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201 unsigned sB;
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202 unsigned dR;
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203 unsigned dG;
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204 unsigned dB;
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205 DISEMBLE_RGB(src, srcbpp, srcfmt, Pixel, sR, sG, sB);
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206 if ( Pixel != ckey ) {
0
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207 dR = dstfmt->palette->colors[*dst].r;
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208 dG = dstfmt->palette->colors[*dst].g;
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209 dB = dstfmt->palette->colors[*dst].b;
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210 ALPHA_BLEND(sR, sG, sB, A, dR, dG, dB);
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211 dR &= 0xff;
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212 dG &= 0xff;
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213 dB &= 0xff;
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214 /* Pack RGB into 8bit pixel */
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215 if ( palmap == NULL ) {
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216 *dst =((dR>>5)<<(3+2))|
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217 ((dG>>5)<<(2)) |
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218 ((dB>>6)<<(0));
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219 } else {
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220 *dst = palmap[((dR>>5)<<(3+2))|
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221 ((dG>>5)<<(2)) |
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222 ((dB>>6)<<(0)) ];
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223 }
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224 }
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225 dst++;
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226 src += srcbpp;
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227 },
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228 width);
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229 /* *INDENT-ON* */
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230 src += srcskip;
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231 dst += dstskip;
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232 }
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233 }
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234
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235 #if GCC_ASMBLIT
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236 /* fast RGB888->(A)RGB888 blending with surface alpha=128 special case */
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237 static void
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238 BlitRGBtoRGBSurfaceAlpha128MMX(SDL_BlitInfo * info)
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239 {
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240 int width = info->d_width;
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241 int height = info->d_height;
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242 Uint32 *srcp = (Uint32 *) info->s_pixels;
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243 int srcskip = info->s_skip >> 2;
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244 Uint32 *dstp = (Uint32 *) info->d_pixels;
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245 int dstskip = info->d_skip >> 2;
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246 Uint32 dalpha = info->dst->Amask;
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247 Uint8 load[8];
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248
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249 *(Uint64 *) load = 0x00fefefe00fefefeULL; /* alpha128 mask */
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250 movq_m2r(*load, mm4); /* alpha128 mask -> mm4 */
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251 *(Uint64 *) load = 0x0001010100010101ULL; /* !alpha128 mask */
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252 movq_m2r(*load, mm3); /* !alpha128 mask -> mm3 */
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253 movd_m2r(dalpha, mm7); /* dst alpha mask */
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254 punpckldq_r2r(mm7, mm7); /* dst alpha mask | dst alpha mask -> mm7 */
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255 while (height--) {
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256 /* *INDENT-OFF* */
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257 DUFFS_LOOP_DOUBLE2(
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258 {
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259 Uint32 s = *srcp++;
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260 Uint32 d = *dstp;
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261 *dstp++ = ((((s & 0x00fefefe) + (d & 0x00fefefe)) >> 1)
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262 + (s & d & 0x00010101)) | dalpha;
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263 },{
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264 movq_m2r((*dstp), mm2);/* 2 x dst -> mm2(ARGBARGB) */
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265 movq_r2r(mm2, mm6); /* 2 x dst -> mm6(ARGBARGB) */
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266
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267 movq_m2r((*srcp), mm1);/* 2 x src -> mm1(ARGBARGB) */
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268 movq_r2r(mm1, mm5); /* 2 x src -> mm5(ARGBARGB) */
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269
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270 pand_r2r(mm4, mm6); /* dst & mask -> mm6 */
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271 pand_r2r(mm4, mm5); /* src & mask -> mm5 */
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272 paddd_r2r(mm6, mm5); /* mm6 + mm5 -> mm5 */
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273 pand_r2r(mm1, mm2); /* src & dst -> mm2 */
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274 psrld_i2r(1, mm5); /* mm5 >> 1 -> mm5 */
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275 pand_r2r(mm3, mm2); /* mm2 & !mask -> mm2 */
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276 paddd_r2r(mm5, mm2); /* mm5 + mm2 -> mm2 */
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277
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278 por_r2r(mm7, mm2); /* mm7(full alpha) | mm2 -> mm2 */
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279 movq_r2m(mm2, (*dstp));/* mm2 -> 2 x dst pixels */
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280 dstp += 2;
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281 srcp += 2;
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282 }, width);
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283 /* *INDENT-ON* */
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284 srcp += srcskip;
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285 dstp += dstskip;
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286 }
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287 emms();
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288 }
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289
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290 /* fast RGB888->(A)RGB888 blending with surface alpha */
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291 static void
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292 BlitRGBtoRGBSurfaceAlphaMMX(SDL_BlitInfo * info)
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293 {
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294 SDL_PixelFormat *df = info->dst;
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295 unsigned alpha = info->src->alpha;
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296
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297 if (alpha == 128 && (df->Rmask | df->Gmask | df->Bmask) == 0x00FFFFFF) {
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298 /* only call a128 version when R,G,B occupy lower bits */
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299 BlitRGBtoRGBSurfaceAlpha128MMX(info);
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300 } else {
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301 int width = info->d_width;
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302 int height = info->d_height;
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303 Uint32 *srcp = (Uint32 *) info->s_pixels;
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304 int srcskip = info->s_skip >> 2;
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305 Uint32 *dstp = (Uint32 *) info->d_pixels;
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306 int dstskip = info->d_skip >> 2;
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307
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308 pxor_r2r(mm5, mm5); /* 0 -> mm5 */
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309 /* form the alpha mult */
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310 movd_m2r(alpha, mm4); /* 0000000A -> mm4 */
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311 punpcklwd_r2r(mm4, mm4); /* 00000A0A -> mm4 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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312 punpckldq_r2r(mm4, mm4); /* 0A0A0A0A -> mm4 */
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313 alpha =
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314 (0xff << df->Rshift) | (0xff << df->Gshift) | (0xff << df->
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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315 Bshift);
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316 movd_m2r(alpha, mm0); /* 00000FFF -> mm0 */
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317 punpcklbw_r2r(mm0, mm0); /* 00FFFFFF -> mm0 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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318 pand_r2r(mm0, mm4); /* 0A0A0A0A -> mm4, minus 1 chan */
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319 /* at this point mm4 can be 000A0A0A or 0A0A0A00 or another combo */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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320 movd_m2r(df->Amask, mm7); /* dst alpha mask */
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321 punpckldq_r2r(mm7, mm7); /* dst alpha mask | dst alpha mask -> mm7 */
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322
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diff changeset
323 while (height--) {
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324 /* *INDENT-OFF* */
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diff changeset
325 DUFFS_LOOP_DOUBLE2({
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326 /* One Pixel Blend */
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327 movd_m2r((*srcp), mm1);/* src(ARGB) -> mm1 (0000ARGB)*/
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328 movd_m2r((*dstp), mm2);/* dst(ARGB) -> mm2 (0000ARGB)*/
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329 punpcklbw_r2r(mm5, mm1); /* 0A0R0G0B -> mm1(src) */
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330 punpcklbw_r2r(mm5, mm2); /* 0A0R0G0B -> mm2(dst) */
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diff changeset
331
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332 psubw_r2r(mm2, mm1);/* src - dst -> mm1 */
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333 pmullw_r2r(mm4, mm1); /* mm1 * alpha -> mm1 */
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334 psrlw_i2r(8, mm1); /* mm1 >> 8 -> mm1 */
a8bf1aa21020 Fixed bug #15
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diff changeset
335 paddb_r2r(mm1, mm2); /* mm1 + mm2(dst) -> mm2 */
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diff changeset
336
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diff changeset
337 packuswb_r2r(mm5, mm2); /* ARGBARGB -> mm2 */
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diff changeset
338 por_r2r(mm7, mm2); /* mm7(full alpha) | mm2 -> mm2 */
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339 movd_r2m(mm2, *dstp);/* mm2 -> pixel */
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340 ++srcp;
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341 ++dstp;
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342 },{
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diff changeset
343 /* Two Pixels Blend */
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344 movq_m2r((*srcp), mm0);/* 2 x src -> mm0(ARGBARGB)*/
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345 movq_m2r((*dstp), mm2);/* 2 x dst -> mm2(ARGBARGB) */
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346 movq_r2r(mm0, mm1); /* 2 x src -> mm1(ARGBARGB) */
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347 movq_r2r(mm2, mm6); /* 2 x dst -> mm6(ARGBARGB) */
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348
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349 punpcklbw_r2r(mm5, mm0); /* low - 0A0R0G0B -> mm0(src1) */
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350 punpckhbw_r2r(mm5, mm1); /* high - 0A0R0G0B -> mm1(src2) */
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351 punpcklbw_r2r(mm5, mm2); /* low - 0A0R0G0B -> mm2(dst1) */
a8bf1aa21020 Fixed bug #15
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352 punpckhbw_r2r(mm5, mm6); /* high - 0A0R0G0B -> mm6(dst2) */
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diff changeset
353
a8bf1aa21020 Fixed bug #15
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354 psubw_r2r(mm2, mm0);/* src1 - dst1 -> mm0 */
a8bf1aa21020 Fixed bug #15
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355 pmullw_r2r(mm4, mm0); /* mm0 * alpha -> mm0 */
a8bf1aa21020 Fixed bug #15
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356 psrlw_i2r(8, mm0); /* mm0 >> 8 -> mm1 */
a8bf1aa21020 Fixed bug #15
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diff changeset
357 paddb_r2r(mm0, mm2); /* mm0 + mm2(dst1) -> mm2 */
a8bf1aa21020 Fixed bug #15
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diff changeset
358
a8bf1aa21020 Fixed bug #15
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diff changeset
359 psubw_r2r(mm6, mm1);/* src2 - dst2 -> mm1 */
a8bf1aa21020 Fixed bug #15
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diff changeset
360 pmullw_r2r(mm4, mm1); /* mm1 * alpha -> mm1 */
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361 psrlw_i2r(8, mm1); /* mm1 >> 8 -> mm1 */
a8bf1aa21020 Fixed bug #15
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diff changeset
362 paddb_r2r(mm1, mm6); /* mm1 + mm6(dst2) -> mm6 */
a8bf1aa21020 Fixed bug #15
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diff changeset
363
a8bf1aa21020 Fixed bug #15
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364 packuswb_r2r(mm6, mm2); /* ARGBARGB -> mm2 */
a8bf1aa21020 Fixed bug #15
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365 por_r2r(mm7, mm2); /* mm7(dst alpha) | mm2 -> mm2 */
a8bf1aa21020 Fixed bug #15
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diff changeset
366
a8bf1aa21020 Fixed bug #15
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diff changeset
367 movq_r2m(mm2, *dstp);/* mm2 -> 2 x pixel */
a8bf1aa21020 Fixed bug #15
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diff changeset
368
a8bf1aa21020 Fixed bug #15
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369 srcp += 2;
a8bf1aa21020 Fixed bug #15
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370 dstp += 2;
a8bf1aa21020 Fixed bug #15
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diff changeset
371 }, width);
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372 /* *INDENT-ON* */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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373 srcp += srcskip;
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374 dstp += dstskip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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375 }
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diff changeset
376 emms();
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377 }
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diff changeset
378 }
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diff changeset
379
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380 /* fast ARGB888->(A)RGB888 blending with pixel alpha */
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diff changeset
381 static void
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diff changeset
382 BlitRGBtoRGBPixelAlphaMMX(SDL_BlitInfo * info)
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383 {
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384 int width = info->d_width;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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385 int height = info->d_height;
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diff changeset
386 Uint32 *srcp = (Uint32 *) info->s_pixels;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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387 int srcskip = info->s_skip >> 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
388 Uint32 *dstp = (Uint32 *) info->d_pixels;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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389 int dstskip = info->d_skip >> 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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390 SDL_PixelFormat *sf = info->src;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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391 Uint32 amask = sf->Amask;
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diff changeset
392
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diff changeset
393 pxor_r2r(mm6, mm6); /* 0 -> mm6 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
394 /* form multiplication mask */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1795
diff changeset
395 movd_m2r(sf->Amask, mm7); /* 0000F000 -> mm7 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1795
diff changeset
396 punpcklbw_r2r(mm7, mm7); /* FF000000 -> mm7 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1795
diff changeset
397 pcmpeqb_r2r(mm0, mm0); /* FFFFFFFF -> mm0 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1795
diff changeset
398 movq_r2r(mm0, mm3); /* FFFFFFFF -> mm3 (for later) */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
399 pxor_r2r(mm0, mm7); /* 00FFFFFF -> mm7 (mult mask) */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1795
diff changeset
400 /* form channel masks */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
401 movq_r2r(mm7, mm0); /* 00FFFFFF -> mm0 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
402 packsswb_r2r(mm6, mm0); /* 00000FFF -> mm0 (channel mask) */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1795
diff changeset
403 packsswb_r2r(mm6, mm3); /* 0000FFFF -> mm3 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
404 pxor_r2r(mm0, mm3); /* 0000F000 -> mm3 (~channel mask) */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
405 /* get alpha channel shift */
2120
2c835d58faad make indent
Sam Lantinga <slouken@libsdl.org>
parents: 2101
diff changeset
406 /* *INDENT-OFF* */
2101
c4e0afbcf1f6 Merge r3005:3006 from branches/SDL-1.2: Alpha blending MMX/3DNow register bug.
Ryan C. Gordon <icculus@icculus.org>
parents: 2086
diff changeset
407 __asm__ __volatile__ (
c4e0afbcf1f6 Merge r3005:3006 from branches/SDL-1.2: Alpha blending MMX/3DNow register bug.
Ryan C. Gordon <icculus@icculus.org>
parents: 2086
diff changeset
408 "movd %0, %%mm5"
c4e0afbcf1f6 Merge r3005:3006 from branches/SDL-1.2: Alpha blending MMX/3DNow register bug.
Ryan C. Gordon <icculus@icculus.org>
parents: 2086
diff changeset
409 : : "rm" ((Uint32) sf->Ashift) ); /* Ashift -> mm5 */
2120
2c835d58faad make indent
Sam Lantinga <slouken@libsdl.org>
parents: 2101
diff changeset
410 /* *INDENT-ON* */
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
411
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
412 while (height--) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
413 /* *INDENT-OFF* */
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
414 DUFFS_LOOP4({
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
415 Uint32 alpha = *srcp & amask;
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
416 /* FIXME: Here we special-case opaque alpha since the
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
417 compositioning used (>>8 instead of /255) doesn't handle
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
418 it correctly. Also special-case alpha=0 for speed?
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
419 Benchmark this! */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
420 if(alpha == 0) {
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
421 /* do nothing */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
422 } else if(alpha == amask) {
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
423 /* opaque alpha -- copy RGB, keep dst alpha */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
424 /* using MMX here to free up regular registers for other things */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
425 movd_m2r((*srcp), mm1);/* src(ARGB) -> mm1 (0000ARGB)*/
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
426 movd_m2r((*dstp), mm2);/* dst(ARGB) -> mm2 (0000ARGB)*/
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
427 pand_r2r(mm0, mm1); /* src & chanmask -> mm1 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
428 pand_r2r(mm3, mm2); /* dst & ~chanmask -> mm2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
429 por_r2r(mm1, mm2); /* src | dst -> mm2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
430 movd_r2m(mm2, (*dstp)); /* mm2 -> dst */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
431 } else {
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
432 movd_m2r((*srcp), mm1);/* src(ARGB) -> mm1 (0000ARGB)*/
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
433 punpcklbw_r2r(mm6, mm1); /* 0A0R0G0B -> mm1 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
434
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
435 movd_m2r((*dstp), mm2);/* dst(ARGB) -> mm2 (0000ARGB)*/
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
436 punpcklbw_r2r(mm6, mm2); /* 0A0R0G0B -> mm2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
437
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
438 __asm__ __volatile__ (
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
439 "movd %0, %%mm4"
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
440 : : "r" (alpha) ); /* 0000A000 -> mm4 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
441 psrld_r2r(mm5, mm4); /* mm4 >> mm5 -> mm4 (0000000A) */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
442 punpcklwd_r2r(mm4, mm4); /* 00000A0A -> mm4 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
443 punpcklwd_r2r(mm4, mm4); /* 0A0A0A0A -> mm4 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
444 pand_r2r(mm7, mm4); /* 000A0A0A -> mm4, preserve dst alpha on add */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
445
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
446 /* blend */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
447 psubw_r2r(mm2, mm1);/* src - dst -> mm1 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
448 pmullw_r2r(mm4, mm1); /* mm1 * alpha -> mm1 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
449 psrlw_i2r(8, mm1); /* mm1 >> 8 -> mm1(000R0G0B) */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
450 paddb_r2r(mm1, mm2); /* mm1 + mm2(dst) -> mm2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
451
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
452 packuswb_r2r(mm6, mm2); /* 0000ARGB -> mm2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
453 movd_r2m(mm2, *dstp);/* mm2 -> dst */
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
454 }
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
455 ++srcp;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
456 ++dstp;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
457 }, width);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
458 /* *INDENT-ON* */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
459 srcp += srcskip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
460 dstp += dstskip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
461 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
462 emms();
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
463 }
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
464
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
465 /* End GCC_ASMBLIT */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
466
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
467 #elif MSVC_ASMBLIT
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
468 /* fast RGB888->(A)RGB888 blending with surface alpha=128 special case */
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
469 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
470 BlitRGBtoRGBSurfaceAlpha128MMX(SDL_BlitInfo * info)
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
471 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
472 int width = info->d_width;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
473 int height = info->d_height;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
474 Uint32 *srcp = (Uint32 *) info->s_pixels;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
475 int srcskip = info->s_skip >> 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
476 Uint32 *dstp = (Uint32 *) info->d_pixels;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
477 int dstskip = info->d_skip >> 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
478 Uint32 dalpha = info->dst->Amask;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
479
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
480 __m64 src1, src2, dst1, dst2, lmask, hmask, dsta;
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
481
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
482 hmask = _mm_set_pi32(0x00fefefe, 0x00fefefe); /* alpha128 mask -> hmask */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
483 lmask = _mm_set_pi32(0x00010101, 0x00010101); /* !alpha128 mask -> lmask */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
484 dsta = _mm_set_pi32(dalpha, dalpha); /* dst alpha mask -> dsta */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
485
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
486 while (height--) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
487 int n = width;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
488 if (n & 1) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
489 Uint32 s = *srcp++;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
490 Uint32 d = *dstp;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
491 *dstp++ = ((((s & 0x00fefefe) + (d & 0x00fefefe)) >> 1)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
492 + (s & d & 0x00010101)) | dalpha;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
493 n--;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
494 }
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
495
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
496 for (n >>= 1; n > 0; --n) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
497 dst1 = *(__m64 *) dstp; /* 2 x dst -> dst1(ARGBARGB) */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
498 dst2 = dst1; /* 2 x dst -> dst2(ARGBARGB) */
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
499
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
500 src1 = *(__m64 *) srcp; /* 2 x src -> src1(ARGBARGB) */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
501 src2 = src1; /* 2 x src -> src2(ARGBARGB) */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
502
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
503 dst2 = _mm_and_si64(dst2, hmask); /* dst & mask -> dst2 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
504 src2 = _mm_and_si64(src2, hmask); /* src & mask -> src2 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
505 src2 = _mm_add_pi32(src2, dst2); /* dst2 + src2 -> src2 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
506 src2 = _mm_srli_pi32(src2, 1); /* src2 >> 1 -> src2 */
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
507
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
508 dst1 = _mm_and_si64(dst1, src1); /* src & dst -> dst1 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
509 dst1 = _mm_and_si64(dst1, lmask); /* dst1 & !mask -> dst1 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
510 dst1 = _mm_add_pi32(dst1, src2); /* src2 + dst1 -> dst1 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
511 dst1 = _mm_or_si64(dst1, dsta); /* dsta(full alpha) | dst1 -> dst1 */
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
512
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
513 *(__m64 *) dstp = dst1; /* dst1 -> 2 x dst pixels */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
514 dstp += 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
515 srcp += 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
516 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
517
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
518 srcp += srcskip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
519 dstp += dstskip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
520 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
521 _mm_empty();
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
522 }
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
523
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
524 /* fast RGB888->(A)RGB888 blending with surface alpha */
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
525 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
526 BlitRGBtoRGBSurfaceAlphaMMX(SDL_BlitInfo * info)
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
527 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
528 SDL_PixelFormat *df = info->dst;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
529 Uint32 chanmask = df->Rmask | df->Gmask | df->Bmask;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
530 unsigned alpha = info->src->alpha;
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
531
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
532 if (alpha == 128 && (df->Rmask | df->Gmask | df->Bmask) == 0x00FFFFFF) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
533 /* only call a128 version when R,G,B occupy lower bits */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
534 BlitRGBtoRGBSurfaceAlpha128MMX(info);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
535 } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
536 int width = info->d_width;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
537 int height = info->d_height;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
538 Uint32 *srcp = (Uint32 *) info->s_pixels;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
539 int srcskip = info->s_skip >> 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
540 Uint32 *dstp = (Uint32 *) info->d_pixels;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
541 int dstskip = info->d_skip >> 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
542 Uint32 dalpha = df->Amask;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
543 Uint32 amult;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
544
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
545 __m64 src1, src2, dst1, dst2, mm_alpha, mm_zero, dsta;
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
546
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
547 mm_zero = _mm_setzero_si64(); /* 0 -> mm_zero */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
548 /* form the alpha mult */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
549 amult = alpha | (alpha << 8);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
550 amult = amult | (amult << 16);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
551 chanmask =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
552 (0xff << df->Rshift) | (0xff << df->Gshift) | (0xff << df->
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
553 Bshift);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
554 mm_alpha = _mm_set_pi32(0, amult & chanmask); /* 0000AAAA -> mm_alpha, minus 1 chan */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
555 mm_alpha = _mm_unpacklo_pi8(mm_alpha, mm_zero); /* 0A0A0A0A -> mm_alpha, minus 1 chan */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
556 /* at this point mm_alpha can be 000A0A0A or 0A0A0A00 or another combo */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
557 dsta = _mm_set_pi32(dalpha, dalpha); /* dst alpha mask -> dsta */
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
558
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
559 while (height--) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
560 int n = width;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
561 if (n & 1) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
562 /* One Pixel Blend */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
563 src2 = _mm_cvtsi32_si64(*srcp); /* src(ARGB) -> src2 (0000ARGB) */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
564 src2 = _mm_unpacklo_pi8(src2, mm_zero); /* 0A0R0G0B -> src2 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
565
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
566 dst1 = _mm_cvtsi32_si64(*dstp); /* dst(ARGB) -> dst1 (0000ARGB) */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
567 dst1 = _mm_unpacklo_pi8(dst1, mm_zero); /* 0A0R0G0B -> dst1 */
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
568
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
569 src2 = _mm_sub_pi16(src2, dst1); /* src2 - dst2 -> src2 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
570 src2 = _mm_mullo_pi16(src2, mm_alpha); /* src2 * alpha -> src2 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
571 src2 = _mm_srli_pi16(src2, 8); /* src2 >> 8 -> src2 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
572 dst1 = _mm_add_pi8(src2, dst1); /* src2 + dst1 -> dst1 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
573
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
574 dst1 = _mm_packs_pu16(dst1, mm_zero); /* 0000ARGB -> dst1 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
575 dst1 = _mm_or_si64(dst1, dsta); /* dsta | dst1 -> dst1 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
576 *dstp = _mm_cvtsi64_si32(dst1); /* dst1 -> pixel */
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
577
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
578 ++srcp;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
579 ++dstp;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
580
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
581 n--;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
582 }
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
583
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
584 for (n >>= 1; n > 0; --n) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
585 /* Two Pixels Blend */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
586 src1 = *(__m64 *) srcp; /* 2 x src -> src1(ARGBARGB) */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
587 src2 = src1; /* 2 x src -> src2(ARGBARGB) */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
588 src1 = _mm_unpacklo_pi8(src1, mm_zero); /* low - 0A0R0G0B -> src1 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
589 src2 = _mm_unpackhi_pi8(src2, mm_zero); /* high - 0A0R0G0B -> src2 */
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
590
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
591 dst1 = *(__m64 *) dstp; /* 2 x dst -> dst1(ARGBARGB) */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
592 dst2 = dst1; /* 2 x dst -> dst2(ARGBARGB) */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
593 dst1 = _mm_unpacklo_pi8(dst1, mm_zero); /* low - 0A0R0G0B -> dst1 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
594 dst2 = _mm_unpackhi_pi8(dst2, mm_zero); /* high - 0A0R0G0B -> dst2 */
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
595
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
596 src1 = _mm_sub_pi16(src1, dst1); /* src1 - dst1 -> src1 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
597 src1 = _mm_mullo_pi16(src1, mm_alpha); /* src1 * alpha -> src1 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
598 src1 = _mm_srli_pi16(src1, 8); /* src1 >> 8 -> src1 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
599 dst1 = _mm_add_pi8(src1, dst1); /* src1 + dst1(dst1) -> dst1 */
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
600
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
601 src2 = _mm_sub_pi16(src2, dst2); /* src2 - dst2 -> src2 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
602 src2 = _mm_mullo_pi16(src2, mm_alpha); /* src2 * alpha -> src2 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
603 src2 = _mm_srli_pi16(src2, 8); /* src2 >> 8 -> src2 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
604 dst2 = _mm_add_pi8(src2, dst2); /* src2 + dst2(dst2) -> dst2 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
605
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
606 dst1 = _mm_packs_pu16(dst1, dst2); /* 0A0R0G0B(res1), 0A0R0G0B(res2) -> dst1(ARGBARGB) */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
607 dst1 = _mm_or_si64(dst1, dsta); /* dsta | dst1 -> dst1 */
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
608
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
609 *(__m64 *) dstp = dst1; /* dst1 -> 2 x pixel */
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
610
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
611 srcp += 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
612 dstp += 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
613 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
614 srcp += srcskip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
615 dstp += dstskip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
616 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
617 _mm_empty();
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
618 }
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
619 }
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
620
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
621 /* fast ARGB888->(A)RGB888 blending with pixel alpha */
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
622 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
623 BlitRGBtoRGBPixelAlphaMMX(SDL_BlitInfo * info)
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
624 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
625 int width = info->d_width;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
626 int height = info->d_height;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
627 Uint32 *srcp = (Uint32 *) info->s_pixels;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
628 int srcskip = info->s_skip >> 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
629 Uint32 *dstp = (Uint32 *) info->d_pixels;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
630 int dstskip = info->d_skip >> 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
631 SDL_PixelFormat *sf = info->src;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
632 Uint32 chanmask = sf->Rmask | sf->Gmask | sf->Bmask;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
633 Uint32 amask = sf->Amask;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
634 Uint32 ashift = sf->Ashift;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
635 Uint64 multmask;
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
636
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
637 __m64 src1, dst1, mm_alpha, mm_zero, dmask;
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
638
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
639 mm_zero = _mm_setzero_si64(); /* 0 -> mm_zero */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
640 /* *INDENT-OFF* */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
641 multmask = ~(0xFFFFI64 << (ashift * 2));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
642 /* *INDENT-ON* */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
643 dmask = *(__m64 *) & multmask; /* dst alpha mask -> dmask */
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
644
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
645 while (height--) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
646 /* *INDENT-OFF* */
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
647 DUFFS_LOOP4({
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
648 Uint32 alpha = *srcp & amask;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
649 if (alpha == 0) {
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
650 /* do nothing */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
651 } else if (alpha == amask) {
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
652 /* opaque alpha -- copy RGB, keep dst alpha */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
653 *dstp = (*srcp & chanmask) | (*dstp & ~chanmask);
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
654 } else {
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
655 src1 = _mm_cvtsi32_si64(*srcp); /* src(ARGB) -> src1 (0000ARGB)*/
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
656 src1 = _mm_unpacklo_pi8(src1, mm_zero); /* 0A0R0G0B -> src1 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
657
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
658 dst1 = _mm_cvtsi32_si64(*dstp); /* dst(ARGB) -> dst1 (0000ARGB)*/
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
659 dst1 = _mm_unpacklo_pi8(dst1, mm_zero); /* 0A0R0G0B -> dst1 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
660
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
661 mm_alpha = _mm_cvtsi32_si64(alpha); /* alpha -> mm_alpha (0000000A) */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
662 mm_alpha = _mm_srli_si64(mm_alpha, ashift); /* mm_alpha >> ashift -> mm_alpha(0000000A) */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
663 mm_alpha = _mm_unpacklo_pi16(mm_alpha, mm_alpha); /* 00000A0A -> mm_alpha */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
664 mm_alpha = _mm_unpacklo_pi32(mm_alpha, mm_alpha); /* 0A0A0A0A -> mm_alpha */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
665 mm_alpha = _mm_and_si64(mm_alpha, dmask); /* 000A0A0A -> mm_alpha, preserve dst alpha on add */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
666
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
667 /* blend */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
668 src1 = _mm_sub_pi16(src1, dst1);/* src1 - dst1 -> src1 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
669 src1 = _mm_mullo_pi16(src1, mm_alpha); /* (src1 - dst1) * alpha -> src1 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
670 src1 = _mm_srli_pi16(src1, 8); /* src1 >> 8 -> src1(000R0G0B) */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
671 dst1 = _mm_add_pi8(src1, dst1); /* src1 + dst1 -> dst1(0A0R0G0B) */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
672 dst1 = _mm_packs_pu16(dst1, mm_zero); /* 0000ARGB -> dst1 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
673
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
674 *dstp = _mm_cvtsi64_si32(dst1); /* dst1 -> pixel */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
675 }
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
676 ++srcp;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
677 ++dstp;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
678 }, width);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
679 /* *INDENT-ON* */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
680 srcp += srcskip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
681 dstp += dstskip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
682 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
683 _mm_empty();
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
684 }
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
685
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
686 /* End MSVC_ASMBLIT */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
687
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
688 #endif /* GCC_ASMBLIT, MSVC_ASMBLIT */
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
689
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
690 #if SDL_ALTIVEC_BLITTERS
1795
398ac0f88e4d Fixed bug #220
Sam Lantinga <slouken@libsdl.org>
parents: 1617
diff changeset
691 #if __MWERKS__
398ac0f88e4d Fixed bug #220
Sam Lantinga <slouken@libsdl.org>
parents: 1617
diff changeset
692 #pragma altivec_model on
398ac0f88e4d Fixed bug #220
Sam Lantinga <slouken@libsdl.org>
parents: 1617
diff changeset
693 #endif
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
694 #if HAVE_ALTIVEC_H
1162
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents: 1047
diff changeset
695 #include <altivec.h>
1175
867f521591e5 Fixed Altivec support on Mac OS X.
Ryan C. Gordon <icculus@icculus.org>
parents: 1162
diff changeset
696 #endif
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
697 #include <assert.h>
1162
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents: 1047
diff changeset
698
1402
d910939febfa Use consistent identifiers for the various platforms we support.
Sam Lantinga <slouken@libsdl.org>
parents: 1361
diff changeset
699 #if (defined(__MACOSX__) && (__GNUC__ < 4))
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
700 #define VECUINT8_LITERAL(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p) \
1162
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents: 1047
diff changeset
701 (vector unsigned char) ( a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p )
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
702 #define VECUINT16_LITERAL(a,b,c,d,e,f,g,h) \
1162
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents: 1047
diff changeset
703 (vector unsigned short) ( a,b,c,d,e,f,g,h )
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents: 1047
diff changeset
704 #else
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
705 #define VECUINT8_LITERAL(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p) \
1162
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents: 1047
diff changeset
706 (vector unsigned char) { a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p }
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
707 #define VECUINT16_LITERAL(a,b,c,d,e,f,g,h) \
1162
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents: 1047
diff changeset
708 (vector unsigned short) { a,b,c,d,e,f,g,h }
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents: 1047
diff changeset
709 #endif
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents: 1047
diff changeset
710
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
711 #define UNALIGNED_PTR(x) (((size_t) x) & 0x0000000F)
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
712 #define VECPRINT(msg, v) do { \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
713 vector unsigned int tmpvec = (vector unsigned int)(v); \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
714 unsigned int *vp = (unsigned int *)&tmpvec; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
715 printf("%s = %08X %08X %08X %08X\n", msg, vp[0], vp[1], vp[2], vp[3]); \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
716 } while (0)
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
717
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
718 /* the permuation vector that takes the high bytes out of all the appropriate shorts
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
719 (vector unsigned char)(
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
720 0x00, 0x10, 0x02, 0x12,
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
721 0x04, 0x14, 0x06, 0x16,
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
722 0x08, 0x18, 0x0A, 0x1A,
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
723 0x0C, 0x1C, 0x0E, 0x1E );
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
724 */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
725 #define VEC_MERGE_PERMUTE() (vec_add(vec_lvsl(0, (int*)NULL), (vector unsigned char)vec_splat_u16(0x0F)))
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
726 #define VEC_U32_24() (vec_add(vec_splat_u32(12), vec_splat_u32(12)))
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
727 #define VEC_ALPHA_MASK() ((vector unsigned char)vec_sl((vector unsigned int)vec_splat_s8(-1), VEC_U32_24()))
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
728 #define VEC_ALIGNER(src) ((UNALIGNED_PTR(src)) \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
729 ? vec_lvsl(0, src) \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
730 : vec_add(vec_lvsl(8, src), vec_splat_u8(8)))
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
731
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
732
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
733 #define VEC_MULTIPLY_ALPHA(vs, vd, valpha, mergePermute, v1_16, v8_16) do { \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
734 /* vtemp1 contains source AAGGAAGGAAGGAAGG */ \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
735 vector unsigned short vtemp1 = vec_mule(vs, valpha); \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
736 /* vtemp2 contains source RRBBRRBBRRBBRRBB */ \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
737 vector unsigned short vtemp2 = vec_mulo(vs, valpha); \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
738 /* valpha2 is 255-alpha */ \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
739 vector unsigned char valpha2 = vec_nor(valpha, valpha); \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
740 /* vtemp3 contains dest AAGGAAGGAAGGAAGG */ \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
741 vector unsigned short vtemp3 = vec_mule(vd, valpha2); \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
742 /* vtemp4 contains dest RRBBRRBBRRBBRRBB */ \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
743 vector unsigned short vtemp4 = vec_mulo(vd, valpha2); \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
744 /* add source and dest */ \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
745 vtemp1 = vec_add(vtemp1, vtemp3); \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
746 vtemp2 = vec_add(vtemp2, vtemp4); \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
747 /* vtemp1 = (vtemp1 + 1) + ((vtemp1 + 1) >> 8) */ \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
748 vtemp1 = vec_add(vtemp1, v1_16); \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
749 vtemp3 = vec_sr(vtemp1, v8_16); \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
750 vtemp1 = vec_add(vtemp1, vtemp3); \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
751 /* vtemp2 = (vtemp2 + 1) + ((vtemp2 + 1) >> 8) */ \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
752 vtemp2 = vec_add(vtemp2, v1_16); \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
753 vtemp4 = vec_sr(vtemp2, v8_16); \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
754 vtemp2 = vec_add(vtemp2, vtemp4); \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
755 /* (>>8) and get ARGBARGBARGBARGB */ \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
756 vd = (vector unsigned char)vec_perm(vtemp1, vtemp2, mergePermute); \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
757 } while (0)
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
758
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
759 /* Calculate the permute vector used for 32->32 swizzling */
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
760 static vector unsigned char
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
761 calc_swizzle32(const SDL_PixelFormat * srcfmt, const SDL_PixelFormat * dstfmt)
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
762 {
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
763 /*
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
764 * We have to assume that the bits that aren't used by other
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
765 * colors is alpha, and it's one complete byte, since some formats
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
766 * leave alpha with a zero mask, but we should still swizzle the bits.
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
767 */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
768 /* ARGB */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
769 const static struct SDL_PixelFormat default_pixel_format = {
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
770 NULL, 0, 0,
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
771 0, 0, 0, 0,
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
772 16, 8, 0, 24,
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
773 0x00FF0000, 0x0000FF00, 0x000000FF, 0xFF000000,
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
774 0, 0
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
775 };
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
776 if (!srcfmt) {
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
777 srcfmt = &default_pixel_format;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
778 }
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
779 if (!dstfmt) {
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
780 dstfmt = &default_pixel_format;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
781 }
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
782 const vector unsigned char plus = VECUINT8_LITERAL(0x00, 0x00, 0x00, 0x00,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
783 0x04, 0x04, 0x04, 0x04,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
784 0x08, 0x08, 0x08, 0x08,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
785 0x0C, 0x0C, 0x0C,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
786 0x0C);
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
787 vector unsigned char vswiz;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
788 vector unsigned int srcvec;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
789 #define RESHIFT(X) (3 - ((X) >> 3))
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
790 Uint32 rmask = RESHIFT(srcfmt->Rshift) << (dstfmt->Rshift);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
791 Uint32 gmask = RESHIFT(srcfmt->Gshift) << (dstfmt->Gshift);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
792 Uint32 bmask = RESHIFT(srcfmt->Bshift) << (dstfmt->Bshift);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
793 Uint32 amask;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
794 /* Use zero for alpha if either surface doesn't have alpha */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
795 if (dstfmt->Amask) {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
796 amask =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
797 ((srcfmt->Amask) ? RESHIFT(srcfmt->Ashift) : 0x10) << (dstfmt->
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
798 Ashift);
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
799 } else {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
800 amask =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
801 0x10101010 & ((dstfmt->Rmask | dstfmt->Gmask | dstfmt->Bmask) ^
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
802 0xFFFFFFFF);
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
803 }
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
804 #undef RESHIFT
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
805 ((unsigned int *) (char *) &srcvec)[0] = (rmask | gmask | bmask | amask);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
806 vswiz = vec_add(plus, (vector unsigned char) vec_splat(srcvec, 0));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
807 return (vswiz);
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
808 }
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
809
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
810 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
811 Blit32to565PixelAlphaAltivec(SDL_BlitInfo * info)
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
812 {
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
813 int height = info->d_height;
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
814 Uint8 *src = (Uint8 *) info->s_pixels;
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
815 int srcskip = info->s_skip;
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
816 Uint8 *dst = (Uint8 *) info->d_pixels;
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
817 int dstskip = info->d_skip;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
818 SDL_PixelFormat *srcfmt = info->src;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
819
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
820 vector unsigned char v0 = vec_splat_u8(0);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
821 vector unsigned short v8_16 = vec_splat_u16(8);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
822 vector unsigned short v1_16 = vec_splat_u16(1);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
823 vector unsigned short v2_16 = vec_splat_u16(2);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
824 vector unsigned short v3_16 = vec_splat_u16(3);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
825 vector unsigned int v8_32 = vec_splat_u32(8);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
826 vector unsigned int v16_32 = vec_add(v8_32, v8_32);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
827 vector unsigned short v3f =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
828 VECUINT16_LITERAL(0x003f, 0x003f, 0x003f, 0x003f,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
829 0x003f, 0x003f, 0x003f, 0x003f);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
830 vector unsigned short vfc =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
831 VECUINT16_LITERAL(0x00fc, 0x00fc, 0x00fc, 0x00fc,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
832 0x00fc, 0x00fc, 0x00fc, 0x00fc);
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
833
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
834 /*
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
835 0x10 - 0x1f is the alpha
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
836 0x00 - 0x0e evens are the red
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
837 0x01 - 0x0f odds are zero
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
838 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
839 vector unsigned char vredalpha1 = VECUINT8_LITERAL(0x10, 0x00, 0x01, 0x01,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
840 0x10, 0x02, 0x01, 0x01,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
841 0x10, 0x04, 0x01, 0x01,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
842 0x10, 0x06, 0x01,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
843 0x01);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
844 vector unsigned char vredalpha2 =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
845 (vector unsigned char) (vec_add((vector unsigned int) vredalpha1,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
846 vec_sl(v8_32, v16_32))
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
847 );
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
848 /*
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
849 0x00 - 0x0f is ARxx ARxx ARxx ARxx
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
850 0x11 - 0x0f odds are blue
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
851 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
852 vector unsigned char vblue1 = VECUINT8_LITERAL(0x00, 0x01, 0x02, 0x11,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
853 0x04, 0x05, 0x06, 0x13,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
854 0x08, 0x09, 0x0a, 0x15,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
855 0x0c, 0x0d, 0x0e, 0x17);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
856 vector unsigned char vblue2 =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
857 (vector unsigned char) (vec_add((vector unsigned int) vblue1, v8_32)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
858 );
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
859 /*
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
860 0x00 - 0x0f is ARxB ARxB ARxB ARxB
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
861 0x10 - 0x0e evens are green
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
862 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
863 vector unsigned char vgreen1 = VECUINT8_LITERAL(0x00, 0x01, 0x10, 0x03,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
864 0x04, 0x05, 0x12, 0x07,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
865 0x08, 0x09, 0x14, 0x0b,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
866 0x0c, 0x0d, 0x16, 0x0f);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
867 vector unsigned char vgreen2 =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
868 (vector unsigned
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
869 char) (vec_add((vector unsigned int) vgreen1, vec_sl(v8_32, v8_32))
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
870 );
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
871 vector unsigned char vgmerge = VECUINT8_LITERAL(0x00, 0x02, 0x00, 0x06,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
872 0x00, 0x0a, 0x00, 0x0e,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
873 0x00, 0x12, 0x00, 0x16,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
874 0x00, 0x1a, 0x00, 0x1e);
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
875 vector unsigned char mergePermute = VEC_MERGE_PERMUTE();
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
876 vector unsigned char vpermute = calc_swizzle32(srcfmt, NULL);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
877 vector unsigned char valphaPermute =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
878 vec_and(vec_lvsl(0, (int *) NULL), vec_splat_u8(0xC));
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
879
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
880 vector unsigned short vf800 = (vector unsigned short) vec_splat_u8(-7);
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
881 vf800 = vec_sl(vf800, vec_splat_u16(8));
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
882
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
883 while (height--) {
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
884 int extrawidth;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
885 vector unsigned char valigner;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
886 vector unsigned char vsrc;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
887 vector unsigned char voverflow;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
888 int width = info->d_width;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
889
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
890 #define ONE_PIXEL_BLEND(condition, widthvar) \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
891 while (condition) { \
1162
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents: 1047
diff changeset
892 Uint32 Pixel; \
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
893 unsigned sR, sG, sB, dR, dG, dB, sA; \
1162
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents: 1047
diff changeset
894 DISEMBLE_RGBA(src, 4, srcfmt, Pixel, sR, sG, sB, sA); \
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
895 if(sA) { \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
896 unsigned short dstpixel = *((unsigned short *)dst); \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
897 dR = (dstpixel >> 8) & 0xf8; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
898 dG = (dstpixel >> 3) & 0xfc; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
899 dB = (dstpixel << 3) & 0xf8; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
900 ACCURATE_ALPHA_BLEND(sR, sG, sB, sA, dR, dG, dB); \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
901 *((unsigned short *)dst) = ( \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
902 ((dR & 0xf8) << 8) | ((dG & 0xfc) << 3) | (dB >> 3) \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
903 ); \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
904 } \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
905 src += 4; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
906 dst += 2; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
907 widthvar--; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
908 }
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
909 ONE_PIXEL_BLEND((UNALIGNED_PTR(dst)) && (width), width);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
910 extrawidth = (width % 8);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
911 valigner = VEC_ALIGNER(src);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
912 vsrc = (vector unsigned char) vec_ld(0, src);
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
913 width -= extrawidth;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
914 while (width) {
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
915 vector unsigned char valpha;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
916 vector unsigned char vsrc1, vsrc2;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
917 vector unsigned char vdst1, vdst2;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
918 vector unsigned short vR, vG, vB;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
919 vector unsigned short vpixel, vrpixel, vgpixel, vbpixel;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
920
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
921 /* Load 8 pixels from src as ARGB */
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
922 voverflow = (vector unsigned char) vec_ld(15, src);
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
923 vsrc = vec_perm(vsrc, voverflow, valigner);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
924 vsrc1 = vec_perm(vsrc, vsrc, vpermute);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
925 src += 16;
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
926 vsrc = (vector unsigned char) vec_ld(15, src);
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
927 voverflow = vec_perm(voverflow, vsrc, valigner);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
928 vsrc2 = vec_perm(voverflow, voverflow, vpermute);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
929 src += 16;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
930
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
931 /* Load 8 pixels from dst as XRGB */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
932 voverflow = vec_ld(0, dst);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
933 vR = vec_and((vector unsigned short) voverflow, vf800);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
934 vB = vec_sl((vector unsigned short) voverflow, v3_16);
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
935 vG = vec_sl(vB, v2_16);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
936 vdst1 =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
937 (vector unsigned char) vec_perm((vector unsigned char) vR,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
938 (vector unsigned char) vR,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
939 vredalpha1);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
940 vdst1 = vec_perm(vdst1, (vector unsigned char) vB, vblue1);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
941 vdst1 = vec_perm(vdst1, (vector unsigned char) vG, vgreen1);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
942 vdst2 =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
943 (vector unsigned char) vec_perm((vector unsigned char) vR,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
944 (vector unsigned char) vR,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
945 vredalpha2);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
946 vdst2 = vec_perm(vdst2, (vector unsigned char) vB, vblue2);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
947 vdst2 = vec_perm(vdst2, (vector unsigned char) vG, vgreen2);
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
948
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
949 /* Alpha blend 8 pixels as ARGB */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
950 valpha = vec_perm(vsrc1, v0, valphaPermute);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
951 VEC_MULTIPLY_ALPHA(vsrc1, vdst1, valpha, mergePermute, v1_16,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
952 v8_16);
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
953 valpha = vec_perm(vsrc2, v0, valphaPermute);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
954 VEC_MULTIPLY_ALPHA(vsrc2, vdst2, valpha, mergePermute, v1_16,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
955 v8_16);
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
956
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
957 /* Convert 8 pixels to 565 */
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
958 vpixel = (vector unsigned short) vec_packpx((vector unsigned int)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
959 vdst1,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
960 (vector unsigned int)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
961 vdst2);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
962 vgpixel = (vector unsigned short) vec_perm(vdst1, vdst2, vgmerge);
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
963 vgpixel = vec_and(vgpixel, vfc);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
964 vgpixel = vec_sl(vgpixel, v3_16);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
965 vrpixel = vec_sl(vpixel, v1_16);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
966 vrpixel = vec_and(vrpixel, vf800);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
967 vbpixel = vec_and(vpixel, v3f);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
968 vdst1 =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
969 vec_or((vector unsigned char) vrpixel,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
970 (vector unsigned char) vgpixel);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
971 vdst1 = vec_or(vdst1, (vector unsigned char) vbpixel);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
972
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
973 /* Store 8 pixels */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
974 vec_st(vdst1, 0, dst);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
975
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
976 width -= 8;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
977 dst += 16;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
978 }
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
979 ONE_PIXEL_BLEND((extrawidth), extrawidth);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
980 #undef ONE_PIXEL_BLEND
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
981 src += srcskip;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
982 dst += dstskip;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
983 }
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
984 }
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
985
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
986 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
987 Blit32to32SurfaceAlphaKeyAltivec(SDL_BlitInfo * info)
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
988 {
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
989 unsigned alpha = info->src->alpha;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
990 int height = info->d_height;
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
991 Uint32 *srcp = (Uint32 *) info->s_pixels;
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
992 int srcskip = info->s_skip >> 2;
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
993 Uint32 *dstp = (Uint32 *) info->d_pixels;
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
994 int dstskip = info->d_skip >> 2;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
995 SDL_PixelFormat *srcfmt = info->src;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
996 SDL_PixelFormat *dstfmt = info->dst;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
997 unsigned sA = srcfmt->alpha;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
998 unsigned dA = dstfmt->Amask ? SDL_ALPHA_OPAQUE : 0;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
999 Uint32 rgbmask = srcfmt->Rmask | srcfmt->Gmask | srcfmt->Bmask;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1000 Uint32 ckey = info->src->colorkey;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1001 vector unsigned char mergePermute;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1002 vector unsigned char vsrcPermute;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1003 vector unsigned char vdstPermute;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1004 vector unsigned char vsdstPermute;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1005 vector unsigned char valpha;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1006 vector unsigned char valphamask;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1007 vector unsigned char vbits;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1008 vector unsigned char v0;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1009 vector unsigned short v1;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1010 vector unsigned short v8;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1011 vector unsigned int vckey;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1012 vector unsigned int vrgbmask;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1013
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1014 mergePermute = VEC_MERGE_PERMUTE();
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1015 v0 = vec_splat_u8(0);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1016 v1 = vec_splat_u16(1);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1017 v8 = vec_splat_u16(8);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1018
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1019 /* set the alpha to 255 on the destination surf */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1020 valphamask = VEC_ALPHA_MASK();
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1021
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1022 vsrcPermute = calc_swizzle32(srcfmt, NULL);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1023 vdstPermute = calc_swizzle32(NULL, dstfmt);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1024 vsdstPermute = calc_swizzle32(dstfmt, NULL);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1025
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1026 /* set a vector full of alpha and 255-alpha */
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1027 ((unsigned char *) &valpha)[0] = alpha;
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1028 valpha = vec_splat(valpha, 0);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1029 vbits = (vector unsigned char) vec_splat_s8(-1);
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1030
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1031 ckey &= rgbmask;
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1032 ((unsigned int *) (char *) &vckey)[0] = ckey;
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1033 vckey = vec_splat(vckey, 0);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1034 ((unsigned int *) (char *) &vrgbmask)[0] = rgbmask;
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1035 vrgbmask = vec_splat(vrgbmask, 0);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1036
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1037 while (height--) {
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1038 int width = info->d_width;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1039 #define ONE_PIXEL_BLEND(condition, widthvar) \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1040 while (condition) { \
1162
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents: 1047
diff changeset
1041 Uint32 Pixel; \
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1042 unsigned sR, sG, sB, dR, dG, dB; \
1162
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents: 1047
diff changeset
1043 RETRIEVE_RGB_PIXEL(((Uint8 *)srcp), 4, Pixel); \
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents: 1047
diff changeset
1044 if(sA && Pixel != ckey) { \
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents: 1047
diff changeset
1045 RGB_FROM_PIXEL(Pixel, srcfmt, sR, sG, sB); \
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents: 1047
diff changeset
1046 DISEMBLE_RGB(((Uint8 *)dstp), 4, dstfmt, Pixel, dR, dG, dB); \
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1047 ACCURATE_ALPHA_BLEND(sR, sG, sB, sA, dR, dG, dB); \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1048 ASSEMBLE_RGBA(((Uint8 *)dstp), 4, dstfmt, dR, dG, dB, dA); \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1049 } \
1162
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents: 1047
diff changeset
1050 dstp++; \
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents: 1047
diff changeset
1051 srcp++; \
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1052 widthvar--; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1053 }
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1054 ONE_PIXEL_BLEND((UNALIGNED_PTR(dstp)) && (width), width);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1055 if (width > 0) {
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1056 int extrawidth = (width % 4);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1057 vector unsigned char valigner = VEC_ALIGNER(srcp);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1058 vector unsigned char vs = (vector unsigned char) vec_ld(0, srcp);
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1059 width -= extrawidth;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1060 while (width) {
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1061 vector unsigned char vsel;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1062 vector unsigned char voverflow;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1063 vector unsigned char vd;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1064 vector unsigned char vd_orig;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1065
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1066 /* s = *srcp */
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1067 voverflow = (vector unsigned char) vec_ld(15, srcp);
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1068 vs = vec_perm(vs, voverflow, valigner);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1069
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1070 /* vsel is set for items that match the key */
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1071 vsel =
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1072 (vector unsigned char) vec_and((vector unsigned int) vs,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1073 vrgbmask);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1074 vsel = (vector unsigned char) vec_cmpeq((vector unsigned int)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1075 vsel, vckey);
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1076
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1077 /* permute to source format */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1078 vs = vec_perm(vs, valpha, vsrcPermute);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1079
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1080 /* d = *dstp */
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1081 vd = (vector unsigned char) vec_ld(0, dstp);
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1082 vd_orig = vd = vec_perm(vd, v0, vsdstPermute);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1083
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1084 VEC_MULTIPLY_ALPHA(vs, vd, valpha, mergePermute, v1, v8);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1085
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1086 /* set the alpha channel to full on */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1087 vd = vec_or(vd, valphamask);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1088
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1089 /* mask out color key */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1090 vd = vec_sel(vd, vd_orig, vsel);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1091
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1092 /* permute to dest format */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1093 vd = vec_perm(vd, vbits, vdstPermute);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1094
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1095 /* *dstp = res */
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1096 vec_st((vector unsigned int) vd, 0, dstp);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1097
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1098 srcp += 4;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1099 dstp += 4;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1100 width -= 4;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1101 vs = voverflow;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1102 }
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1103 ONE_PIXEL_BLEND((extrawidth), extrawidth);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1104 }
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1105 #undef ONE_PIXEL_BLEND
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1106
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1107 srcp += srcskip;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1108 dstp += dstskip;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1109 }
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1110 }
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1111
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1112
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1113 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1114 Blit32to32PixelAlphaAltivec(SDL_BlitInfo * info)
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1115 {
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1116 int width = info->d_width;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1117 int height = info->d_height;
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1118 Uint32 *srcp = (Uint32 *) info->s_pixels;
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1119 int srcskip = info->s_skip >> 2;
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1120 Uint32 *dstp = (Uint32 *) info->d_pixels;
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1121 int dstskip = info->d_skip >> 2;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1122 SDL_PixelFormat *srcfmt = info->src;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1123 SDL_PixelFormat *dstfmt = info->dst;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1124 vector unsigned char mergePermute;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1125 vector unsigned char valphaPermute;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1126 vector unsigned char vsrcPermute;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1127 vector unsigned char vdstPermute;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1128 vector unsigned char vsdstPermute;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1129 vector unsigned char valphamask;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1130 vector unsigned char vpixelmask;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1131 vector unsigned char v0;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1132 vector unsigned short v1;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1133 vector unsigned short v8;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1134
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1135 v0 = vec_splat_u8(0);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1136 v1 = vec_splat_u16(1);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1137 v8 = vec_splat_u16(8);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1138 mergePermute = VEC_MERGE_PERMUTE();
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1139 valphamask = VEC_ALPHA_MASK();
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1140 valphaPermute = vec_and(vec_lvsl(0, (int *) NULL), vec_splat_u8(0xC));
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1141 vpixelmask = vec_nor(valphamask, v0);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1142 vsrcPermute = calc_swizzle32(srcfmt, NULL);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1143 vdstPermute = calc_swizzle32(NULL, dstfmt);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1144 vsdstPermute = calc_swizzle32(dstfmt, NULL);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1145
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1146 while (height--) {
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1147 width = info->d_width;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1148 #define ONE_PIXEL_BLEND(condition, widthvar) while ((condition)) { \
1162
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents: 1047
diff changeset
1149 Uint32 Pixel; \
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1150 unsigned sR, sG, sB, dR, dG, dB, sA, dA; \
1162
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents: 1047
diff changeset
1151 DISEMBLE_RGBA((Uint8 *)srcp, 4, srcfmt, Pixel, sR, sG, sB, sA); \
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1152 if(sA) { \
1162
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents: 1047
diff changeset
1153 DISEMBLE_RGBA((Uint8 *)dstp, 4, dstfmt, Pixel, dR, dG, dB, dA); \
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1154 ACCURATE_ALPHA_BLEND(sR, sG, sB, sA, dR, dG, dB); \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1155 ASSEMBLE_RGBA((Uint8 *)dstp, 4, dstfmt, dR, dG, dB, dA); \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1156 } \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1157 ++srcp; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1158 ++dstp; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1159 widthvar--; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1160 }
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1161 ONE_PIXEL_BLEND((UNALIGNED_PTR(dstp)) && (width), width);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1162 if (width > 0) {
1487
dc6b59e925a2 Cleaning up warnings on MacOS X
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
1163 /* vsrcPermute */
dc6b59e925a2 Cleaning up warnings on MacOS X
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
1164 /* vdstPermute */
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1165 int extrawidth = (width % 4);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1166 vector unsigned char valigner = VEC_ALIGNER(srcp);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1167 vector unsigned char vs = (vector unsigned char) vec_ld(0, srcp);
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1168 width -= extrawidth;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1169 while (width) {
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1170 vector unsigned char voverflow;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1171 vector unsigned char vd;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1172 vector unsigned char valpha;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1173 vector unsigned char vdstalpha;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1174 /* s = *srcp */
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1175 voverflow = (vector unsigned char) vec_ld(15, srcp);
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1176 vs = vec_perm(vs, voverflow, valigner);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1177 vs = vec_perm(vs, v0, vsrcPermute);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1178
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1179 valpha = vec_perm(vs, v0, valphaPermute);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1180
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1181 /* d = *dstp */
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1182 vd = (vector unsigned char) vec_ld(0, dstp);
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1183 vd = vec_perm(vd, v0, vsdstPermute);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1184 vdstalpha = vec_and(vd, valphamask);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1185
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1186 VEC_MULTIPLY_ALPHA(vs, vd, valpha, mergePermute, v1, v8);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1187
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1188 /* set the alpha to the dest alpha */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1189 vd = vec_and(vd, vpixelmask);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1190 vd = vec_or(vd, vdstalpha);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1191 vd = vec_perm(vd, v0, vdstPermute);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1192
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1193 /* *dstp = res */
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1194 vec_st((vector unsigned int) vd, 0, dstp);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1195
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1196 srcp += 4;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1197 dstp += 4;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1198 width -= 4;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1199 vs = voverflow;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1200
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1201 }
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1202 ONE_PIXEL_BLEND((extrawidth), extrawidth);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1203 }
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1204 srcp += srcskip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1205 dstp += dstskip;
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1206 #undef ONE_PIXEL_BLEND
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1207 }
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1208 }
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1209
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1210 /* fast ARGB888->(A)RGB888 blending with pixel alpha */
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1211 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1212 BlitRGBtoRGBPixelAlphaAltivec(SDL_BlitInfo * info)
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1213 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1214 int width = info->d_width;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1215 int height = info->d_height;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1216 Uint32 *srcp = (Uint32 *) info->s_pixels;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1217 int srcskip = info->s_skip >> 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1218 Uint32 *dstp = (Uint32 *) info->d_pixels;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1219 int dstskip = info->d_skip >> 2;
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1220 vector unsigned char mergePermute;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1221 vector unsigned char valphaPermute;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1222 vector unsigned char valphamask;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1223 vector unsigned char vpixelmask;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1224 vector unsigned char v0;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1225 vector unsigned short v1;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1226 vector unsigned short v8;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1227 v0 = vec_splat_u8(0);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1228 v1 = vec_splat_u16(1);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1229 v8 = vec_splat_u16(8);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1230 mergePermute = VEC_MERGE_PERMUTE();
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1231 valphamask = VEC_ALPHA_MASK();
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1232 valphaPermute = vec_and(vec_lvsl(0, (int *) NULL), vec_splat_u8(0xC));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1233
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1234
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1235 vpixelmask = vec_nor(valphamask, v0);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1236 while (height--) {
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1237 width = info->d_width;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1238 #define ONE_PIXEL_BLEND(condition, widthvar) \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1239 while ((condition)) { \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1240 Uint32 dalpha; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1241 Uint32 d; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1242 Uint32 s1; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1243 Uint32 d1; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1244 Uint32 s = *srcp; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1245 Uint32 alpha = s >> 24; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1246 if(alpha) { \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1247 if(alpha == SDL_ALPHA_OPAQUE) { \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1248 *dstp = (s & 0x00ffffff) | (*dstp & 0xff000000); \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1249 } else { \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1250 d = *dstp; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1251 dalpha = d & 0xff000000; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1252 s1 = s & 0xff00ff; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1253 d1 = d & 0xff00ff; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1254 d1 = (d1 + ((s1 - d1) * alpha >> 8)) & 0xff00ff; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1255 s &= 0xff00; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1256 d &= 0xff00; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1257 d = (d + ((s - d) * alpha >> 8)) & 0xff00; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1258 *dstp = d1 | d | dalpha; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1259 } \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1260 } \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1261 ++srcp; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1262 ++dstp; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1263 widthvar--; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1264 }
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1265 ONE_PIXEL_BLEND((UNALIGNED_PTR(dstp)) && (width), width);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1266 if (width > 0) {
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1267 int extrawidth = (width % 4);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1268 vector unsigned char valigner = VEC_ALIGNER(srcp);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1269 vector unsigned char vs = (vector unsigned char) vec_ld(0, srcp);
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1270 width -= extrawidth;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1271 while (width) {
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1272 vector unsigned char voverflow;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1273 vector unsigned char vd;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1274 vector unsigned char valpha;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1275 vector unsigned char vdstalpha;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1276 /* s = *srcp */
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1277 voverflow = (vector unsigned char) vec_ld(15, srcp);
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1278 vs = vec_perm(vs, voverflow, valigner);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1279
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1280 valpha = vec_perm(vs, v0, valphaPermute);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1281
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1282 /* d = *dstp */
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1283 vd = (vector unsigned char) vec_ld(0, dstp);
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1284 vdstalpha = vec_and(vd, valphamask);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1285
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1286 VEC_MULTIPLY_ALPHA(vs, vd, valpha, mergePermute, v1, v8);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1287
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1288 /* set the alpha to the dest alpha */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1289 vd = vec_and(vd, vpixelmask);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1290 vd = vec_or(vd, vdstalpha);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1291
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1292 /* *dstp = res */
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1293 vec_st((vector unsigned int) vd, 0, dstp);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1294
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1295 srcp += 4;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1296 dstp += 4;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1297 width -= 4;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1298 vs = voverflow;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1299 }
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1300 ONE_PIXEL_BLEND((extrawidth), extrawidth);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1301 }
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1302 srcp += srcskip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1303 dstp += dstskip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1304 }
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1305 #undef ONE_PIXEL_BLEND
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1306 }
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1307
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1308 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1309 Blit32to32SurfaceAlphaAltivec(SDL_BlitInfo * info)
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1310 {
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1311 /* XXX : 6 */
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1312 unsigned alpha = info->src->alpha;
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1313 int height = info->d_height;
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1314 Uint32 *srcp = (Uint32 *) info->s_pixels;
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1315 int srcskip = info->s_skip >> 2;
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1316 Uint32 *dstp = (Uint32 *) info->d_pixels;
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1317 int dstskip = info->d_skip >> 2;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1318 SDL_PixelFormat *srcfmt = info->src;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1319 SDL_PixelFormat *dstfmt = info->dst;
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1320 unsigned sA = srcfmt->alpha;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1321 unsigned dA = dstfmt->Amask ? SDL_ALPHA_OPAQUE : 0;
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1322 vector unsigned char mergePermute;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1323 vector unsigned char vsrcPermute;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1324 vector unsigned char vdstPermute;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1325 vector unsigned char vsdstPermute;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1326 vector unsigned char valpha;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1327 vector unsigned char valphamask;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1328 vector unsigned char vbits;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1329 vector unsigned short v1;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1330 vector unsigned short v8;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1331
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1332 mergePermute = VEC_MERGE_PERMUTE();
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1333 v1 = vec_splat_u16(1);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1334 v8 = vec_splat_u16(8);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1335
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1336 /* set the alpha to 255 on the destination surf */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1337 valphamask = VEC_ALPHA_MASK();
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1338
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1339 vsrcPermute = calc_swizzle32(srcfmt, NULL);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1340 vdstPermute = calc_swizzle32(NULL, dstfmt);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1341 vsdstPermute = calc_swizzle32(dstfmt, NULL);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1342
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1343 /* set a vector full of alpha and 255-alpha */
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1344 ((unsigned char *) &valpha)[0] = alpha;
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1345 valpha = vec_splat(valpha, 0);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1346 vbits = (vector unsigned char) vec_splat_s8(-1);
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1347
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1348 while (height--) {
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1349 int width = info->d_width;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1350 #define ONE_PIXEL_BLEND(condition, widthvar) while ((condition)) { \
1162
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents: 1047
diff changeset
1351 Uint32 Pixel; \
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1352 unsigned sR, sG, sB, dR, dG, dB; \
1162
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents: 1047
diff changeset
1353 DISEMBLE_RGB(((Uint8 *)srcp), 4, srcfmt, Pixel, sR, sG, sB); \
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents: 1047
diff changeset
1354 DISEMBLE_RGB(((Uint8 *)dstp), 4, dstfmt, Pixel, dR, dG, dB); \
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1355 ACCURATE_ALPHA_BLEND(sR, sG, sB, sA, dR, dG, dB); \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1356 ASSEMBLE_RGBA(((Uint8 *)dstp), 4, dstfmt, dR, dG, dB, dA); \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1357 ++srcp; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1358 ++dstp; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1359 widthvar--; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1360 }
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1361 ONE_PIXEL_BLEND((UNALIGNED_PTR(dstp)) && (width), width);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1362 if (width > 0) {
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1363 int extrawidth = (width % 4);
2086
fffea8d6bf92 Merged r2954:2955 from branches/SDL-1.2: Altivec alpha blitter alignment fix.
Ryan C. Gordon <icculus@icculus.org>
parents: 2074
diff changeset
1364 vector unsigned char valigner = VEC_ALIGNER(srcp);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1365 vector unsigned char vs = (vector unsigned char) vec_ld(0, srcp);
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1366 width -= extrawidth;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1367 while (width) {
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1368 vector unsigned char voverflow;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1369 vector unsigned char vd;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1370
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1371 /* s = *srcp */
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1372 voverflow = (vector unsigned char) vec_ld(15, srcp);
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1373 vs = vec_perm(vs, voverflow, valigner);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1374 vs = vec_perm(vs, valpha, vsrcPermute);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1375
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1376 /* d = *dstp */
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1377 vd = (vector unsigned char) vec_ld(0, dstp);
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1378 vd = vec_perm(vd, vd, vsdstPermute);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1379
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1380 VEC_MULTIPLY_ALPHA(vs, vd, valpha, mergePermute, v1, v8);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1381
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1382 /* set the alpha channel to full on */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1383 vd = vec_or(vd, valphamask);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1384 vd = vec_perm(vd, vbits, vdstPermute);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1385
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1386 /* *dstp = res */
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1387 vec_st((vector unsigned int) vd, 0, dstp);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1388
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1389 srcp += 4;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1390 dstp += 4;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1391 width -= 4;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1392 vs = voverflow;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1393 }
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1394 ONE_PIXEL_BLEND((extrawidth), extrawidth);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1395 }
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1396 #undef ONE_PIXEL_BLEND
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1397
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1398 srcp += srcskip;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1399 dstp += dstskip;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1400 }
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1401
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1402 }
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1403
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1404
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1405 /* fast RGB888->(A)RGB888 blending */
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1406 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1407 BlitRGBtoRGBSurfaceAlphaAltivec(SDL_BlitInfo * info)
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1408 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1409 unsigned alpha = info->src->alpha;
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1410 int height = info->d_height;
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1411 Uint32 *srcp = (Uint32 *) info->s_pixels;
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1412 int srcskip = info->s_skip >> 2;
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1413 Uint32 *dstp = (Uint32 *) info->d_pixels;
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1414 int dstskip = info->d_skip >> 2;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1415 vector unsigned char mergePermute;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1416 vector unsigned char valpha;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1417 vector unsigned char valphamask;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1418 vector unsigned short v1;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1419 vector unsigned short v8;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1420
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1421 mergePermute = VEC_MERGE_PERMUTE();
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1422 v1 = vec_splat_u16(1);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1423 v8 = vec_splat_u16(8);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1424
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1425 /* set the alpha to 255 on the destination surf */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1426 valphamask = VEC_ALPHA_MASK();
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1427
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1428 /* set a vector full of alpha and 255-alpha */
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1429 ((unsigned char *) &valpha)[0] = alpha;
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1430 valpha = vec_splat(valpha, 0);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1431
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1432 while (height--) {
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1433 int width = info->d_width;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1434 #define ONE_PIXEL_BLEND(condition, widthvar) while ((condition)) { \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1435 Uint32 s = *srcp; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1436 Uint32 d = *dstp; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1437 Uint32 s1 = s & 0xff00ff; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1438 Uint32 d1 = d & 0xff00ff; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1439 d1 = (d1 + ((s1 - d1) * alpha >> 8)) \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1440 & 0xff00ff; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1441 s &= 0xff00; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1442 d &= 0xff00; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1443 d = (d + ((s - d) * alpha >> 8)) & 0xff00; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1444 *dstp = d1 | d | 0xff000000; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1445 ++srcp; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1446 ++dstp; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1447 widthvar--; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1448 }
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1449 ONE_PIXEL_BLEND((UNALIGNED_PTR(dstp)) && (width), width);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1450 if (width > 0) {
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1451 int extrawidth = (width % 4);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1452 vector unsigned char valigner = VEC_ALIGNER(srcp);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1453 vector unsigned char vs = (vector unsigned char) vec_ld(0, srcp);
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1454 width -= extrawidth;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1455 while (width) {
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1456 vector unsigned char voverflow;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1457 vector unsigned char vd;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1458
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1459 /* s = *srcp */
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1460 voverflow = (vector unsigned char) vec_ld(15, srcp);
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1461 vs = vec_perm(vs, voverflow, valigner);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1462
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1463 /* d = *dstp */
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1464 vd = (vector unsigned char) vec_ld(0, dstp);
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1465
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1466 VEC_MULTIPLY_ALPHA(vs, vd, valpha, mergePermute, v1, v8);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1467
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1468 /* set the alpha channel to full on */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1469 vd = vec_or(vd, valphamask);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1470
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1471 /* *dstp = res */
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1472 vec_st((vector unsigned int) vd, 0, dstp);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1473
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1474 srcp += 4;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1475 dstp += 4;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1476 width -= 4;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1477 vs = voverflow;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1478 }
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1479 ONE_PIXEL_BLEND((extrawidth), extrawidth);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1480 }
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1481 #undef ONE_PIXEL_BLEND
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1482
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1483 srcp += srcskip;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1484 dstp += dstskip;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1485 }
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1486 }
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1487
1795
398ac0f88e4d Fixed bug #220
Sam Lantinga <slouken@libsdl.org>
parents: 1617
diff changeset
1488 #if __MWERKS__
398ac0f88e4d Fixed bug #220
Sam Lantinga <slouken@libsdl.org>
parents: 1617
diff changeset
1489 #pragma altivec_model off
398ac0f88e4d Fixed bug #220
Sam Lantinga <slouken@libsdl.org>
parents: 1617
diff changeset
1490 #endif
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
1491 #endif /* SDL_ALTIVEC_BLITTERS */
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1492
1
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1493 /* fast RGB888->(A)RGB888 blending with surface alpha=128 special case */
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1494 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1495 BlitRGBtoRGBSurfaceAlpha128(SDL_BlitInfo * info)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1496 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1497 int width = info->d_width;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1498 int height = info->d_height;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1499 Uint32 *srcp = (Uint32 *) info->s_pixels;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1500 int srcskip = info->s_skip >> 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1501 Uint32 *dstp = (Uint32 *) info->d_pixels;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1502 int dstskip = info->d_skip >> 2;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1503
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1504 while (height--) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1505 /* *INDENT-OFF* */
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1506 DUFFS_LOOP4({
1
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1507 Uint32 s = *srcp++;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1508 Uint32 d = *dstp;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1509 *dstp++ = ((((s & 0x00fefefe) + (d & 0x00fefefe)) >> 1)
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1510 + (s & d & 0x00010101)) | 0xff000000;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1511 }, width);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1512 /* *INDENT-ON* */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1513 srcp += srcskip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1514 dstp += dstskip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1515 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1516 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1517
1
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1518 /* fast RGB888->(A)RGB888 blending with surface alpha */
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1519 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1520 BlitRGBtoRGBSurfaceAlpha(SDL_BlitInfo * info)
1
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1521 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1522 unsigned alpha = info->src->alpha;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1523 if (alpha == 128) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1524 BlitRGBtoRGBSurfaceAlpha128(info);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1525 } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1526 int width = info->d_width;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1527 int height = info->d_height;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1528 Uint32 *srcp = (Uint32 *) info->s_pixels;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1529 int srcskip = info->s_skip >> 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1530 Uint32 *dstp = (Uint32 *) info->d_pixels;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1531 int dstskip = info->d_skip >> 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1532 Uint32 s;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1533 Uint32 d;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1534 Uint32 s1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1535 Uint32 d1;
1
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1536
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1537 while (height--) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1538 /* *INDENT-OFF* */
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1539 DUFFS_LOOP_DOUBLE2({
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1540 /* One Pixel Blend */
1
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1541 s = *srcp;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1542 d = *dstp;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1543 s1 = s & 0xff00ff;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1544 d1 = d & 0xff00ff;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1545 d1 = (d1 + ((s1 - d1) * alpha >> 8))
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1546 & 0xff00ff;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1547 s &= 0xff00;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1548 d &= 0xff00;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1549 d = (d + ((s - d) * alpha >> 8)) & 0xff00;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1550 *dstp = d1 | d | 0xff000000;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1551 ++srcp;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1552 ++dstp;
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1553 },{
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1554 /* Two Pixels Blend */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1555 s = *srcp;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1556 d = *dstp;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1557 s1 = s & 0xff00ff;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1558 d1 = d & 0xff00ff;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1559 d1 += (s1 - d1) * alpha >> 8;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1560 d1 &= 0xff00ff;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1561
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1562 s = ((s & 0xff00) >> 8) |
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1563 ((srcp[1] & 0xff00) << 8);
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1564 d = ((d & 0xff00) >> 8) |
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1565 ((dstp[1] & 0xff00) << 8);
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1566 d += (s - d) * alpha >> 8;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1567 d &= 0x00ff00ff;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1568
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1569 *dstp++ = d1 | ((d << 8) & 0xff00) | 0xff000000;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1570 ++srcp;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1571
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1572 s1 = *srcp;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1573 d1 = *dstp;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1574 s1 &= 0xff00ff;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1575 d1 &= 0xff00ff;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1576 d1 += (s1 - d1) * alpha >> 8;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1577 d1 &= 0xff00ff;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1578
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1579 *dstp = d1 | ((d >> 8) & 0xff00) | 0xff000000;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1580 ++srcp;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1581 ++dstp;
1
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1582 }, width);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1583 /* *INDENT-ON* */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1584 srcp += srcskip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1585 dstp += dstskip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1586 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1587 }
1
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1588 }
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1589
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1590 /* fast ARGB888->(A)RGB888 blending with pixel alpha */
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1591 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1592 BlitRGBtoRGBPixelAlpha(SDL_BlitInfo * info)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1593 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1594 int width = info->d_width;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1595 int height = info->d_height;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1596 Uint32 *srcp = (Uint32 *) info->s_pixels;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1597 int srcskip = info->s_skip >> 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1598 Uint32 *dstp = (Uint32 *) info->d_pixels;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1599 int dstskip = info->d_skip >> 2;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1600
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1601 while (height--) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1602 /* *INDENT-OFF* */
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1603 DUFFS_LOOP4({
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1604 Uint32 dalpha;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1605 Uint32 d;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1606 Uint32 s1;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1607 Uint32 d1;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1608 Uint32 s = *srcp;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1609 Uint32 alpha = s >> 24;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1610 /* FIXME: Here we special-case opaque alpha since the
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1611 compositioning used (>>8 instead of /255) doesn't handle
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1612 it correctly. Also special-case alpha=0 for speed?
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1613 Benchmark this! */
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1614 if(alpha) {
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1615 if(alpha == SDL_ALPHA_OPAQUE) {
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1616 *dstp = (s & 0x00ffffff) | (*dstp & 0xff000000);
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1617 } else {
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1618 /*
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1619 * take out the middle component (green), and process
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1620 * the other two in parallel. One multiply less.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1621 */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1622 d = *dstp;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1623 dalpha = d & 0xff000000;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1624 s1 = s & 0xff00ff;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1625 d1 = d & 0xff00ff;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1626 d1 = (d1 + ((s1 - d1) * alpha >> 8)) & 0xff00ff;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1627 s &= 0xff00;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1628 d &= 0xff00;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1629 d = (d + ((s - d) * alpha >> 8)) & 0xff00;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1630 *dstp = d1 | d | dalpha;
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1631 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1632 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1633 ++srcp;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1634 ++dstp;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1635 }, width);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1636 /* *INDENT-ON* */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1637 srcp += srcskip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1638 dstp += dstskip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1639 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1640 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1641
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1642 #if GCC_ASMBLIT
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1643 /* fast (as in MMX with prefetch) ARGB888->(A)RGB888 blending with pixel alpha */
2038
Sam Lantinga <slouken@libsdl.org>
parents: 1895
diff changeset
1644 static void
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1645 BlitRGBtoRGBPixelAlphaMMX3DNOW(SDL_BlitInfo * info)
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1646 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1647 int width = info->d_width;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1648 int height = info->d_height;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1649 Uint32 *srcp = (Uint32 *) info->s_pixels;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1650 int srcskip = info->s_skip >> 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1651 Uint32 *dstp = (Uint32 *) info->d_pixels;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1652 int dstskip = info->d_skip >> 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1653 SDL_PixelFormat *sf = info->src;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1654 Uint32 amask = sf->Amask;
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1655
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1656 __asm__(
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1657 /* make mm6 all zeros. */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1658 "pxor %%mm6, %%mm6\n"
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1659 /* Make a mask to preserve the alpha. */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1660 "movd %0, %%mm7\n\t" /* 0000F000 -> mm7 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1661 "punpcklbw %%mm7, %%mm7\n\t" /* FF000000 -> mm7 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1662 "pcmpeqb %%mm4, %%mm4\n\t" /* FFFFFFFF -> mm4 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1663 "movq %%mm4, %%mm3\n\t" /* FFFFFFFF -> mm3 (for later) */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1664 "pxor %%mm4, %%mm7\n\t" /* 00FFFFFF -> mm7 (mult mask) */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1665 /* form channel masks */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1666 "movq %%mm7, %%mm4\n\t" /* 00FFFFFF -> mm4 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1667 "packsswb %%mm6, %%mm4\n\t" /* 00000FFF -> mm4 (channel mask) */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1668 "packsswb %%mm6, %%mm3\n\t" /* 0000FFFF -> mm3 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1669 "pxor %%mm4, %%mm3\n\t" /* 0000F000 -> mm3 (~channel mask) */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1670 /* get alpha channel shift */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1671 "movd %1, %%mm5\n\t" /* Ashift -> mm5 */
2101
c4e0afbcf1f6 Merge r3005:3006 from branches/SDL-1.2: Alpha blending MMX/3DNow register bug.
Ryan C. Gordon <icculus@icculus.org>
parents: 2086
diff changeset
1672 : /* nothing */ : "rm"(amask), "rm"((Uint32) sf->Ashift));
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1673
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1674 while (height--) {
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1675
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1676 /* *INDENT-OFF* */
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1677 DUFFS_LOOP4({
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1678 Uint32 alpha;
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1679
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1680 __asm__ (
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1681 "prefetch 64(%0)\n"
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1682 "prefetch 64(%1)\n"
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1683 : : "r" (srcp), "r" (dstp) );
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1684
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1685 alpha = *srcp & amask;
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1686 /* FIXME: Here we special-case opaque alpha since the
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1687 compositioning used (>>8 instead of /255) doesn't handle
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1688 it correctly. Also special-case alpha=0 for speed?
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1689 Benchmark this! */
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1690 if(alpha == 0) {
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1691 /* do nothing */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1692 }
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1693 else if(alpha == amask) {
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1694 /* opaque alpha -- copy RGB, keep dst alpha */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1695 /* using MMX here to free up regular registers for other things */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1696 __asm__ (
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1697 "movd (%0), %%mm0\n\t" /* src(ARGB) -> mm0 (0000ARGB)*/
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1698 "movd (%1), %%mm1\n\t" /* dst(ARGB) -> mm1 (0000ARGB)*/
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1699 "pand %%mm4, %%mm0\n\t" /* src & chanmask -> mm0 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1700 "pand %%mm3, %%mm1\n\t" /* dst & ~chanmask -> mm2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1701 "por %%mm0, %%mm1\n\t" /* src | dst -> mm1 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1702 "movd %%mm1, (%1) \n\t" /* mm1 -> dst */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1703
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1704 : : "r" (srcp), "r" (dstp) );
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1705 }
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1706
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1707 else {
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1708 __asm__ (
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1709 /* load in the source, and dst. */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1710 "movd (%0), %%mm0\n" /* mm0(s) = 0 0 0 0 | As Rs Gs Bs */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1711 "movd (%1), %%mm1\n" /* mm1(d) = 0 0 0 0 | Ad Rd Gd Bd */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1712
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1713 /* Move the src alpha into mm2 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1714
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1715 /* if supporting pshufw */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1716 /*"pshufw $0x55, %%mm0, %%mm2\n" */ /* mm2 = 0 As 0 As | 0 As 0 As */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1717 /*"psrlw $8, %%mm2\n" */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1718
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1719 /* else: */
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1720 "movd %2, %%mm2\n"
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1721 "psrld %%mm5, %%mm2\n" /* mm2 = 0 0 0 0 | 0 0 0 As */
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1722 "punpcklwd %%mm2, %%mm2\n" /* mm2 = 0 0 0 0 | 0 As 0 As */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1723 "punpckldq %%mm2, %%mm2\n" /* mm2 = 0 As 0 As | 0 As 0 As */
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1724 "pand %%mm7, %%mm2\n" /* to preserve dest alpha */
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1725
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1726 /* move the colors into words. */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1727 "punpcklbw %%mm6, %%mm0\n" /* mm0 = 0 As 0 Rs | 0 Gs 0 Bs */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1728 "punpcklbw %%mm6, %%mm1\n" /* mm0 = 0 Ad 0 Rd | 0 Gd 0 Bd */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1729
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1730 /* src - dst */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1731 "psubw %%mm1, %%mm0\n" /* mm0 = As-Ad Rs-Rd | Gs-Gd Bs-Bd */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1732
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1733 /* A * (src-dst) */
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1734 "pmullw %%mm2, %%mm0\n" /* mm0 = 0*As-d As*Rs-d | As*Gs-d As*Bs-d */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1735 "psrlw $8, %%mm0\n" /* mm0 = 0>>8 Rc>>8 | Gc>>8 Bc>>8 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1736 "paddb %%mm1, %%mm0\n" /* mm0 = 0+Ad Rc+Rd | Gc+Gd Bc+Bd */
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1737
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1738 "packuswb %%mm0, %%mm0\n" /* mm0 = | Ac Rc Gc Bc */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1739
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1740 "movd %%mm0, (%1)\n" /* result in mm0 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1741
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1742 : : "r" (srcp), "r" (dstp), "r" (alpha) );
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1743
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1744 }
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1745 ++srcp;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1746 ++dstp;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1747 }, width);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1748 /* *INDENT-ON* */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1749 srcp += srcskip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1750 dstp += dstskip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1751 }
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1752
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1753 __asm__("emms\n":);
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1754 }
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1755
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1756 /* End GCC_ASMBLIT*/
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1757
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1758 #elif MSVC_ASMBLIT
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1759 /* fast (as in MMX with prefetch) ARGB888->(A)RGB888 blending with pixel alpha */
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1760 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1761 BlitRGBtoRGBPixelAlphaMMX3DNOW(SDL_BlitInfo * info)
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1762 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1763 int width = info->d_width;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1764 int height = info->d_height;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1765 Uint32 *srcp = (Uint32 *) info->s_pixels;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1766 int srcskip = info->s_skip >> 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1767 Uint32 *dstp = (Uint32 *) info->d_pixels;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1768 int dstskip = info->d_skip >> 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1769 SDL_PixelFormat *sf = info->src;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1770 Uint32 chanmask = sf->Rmask | sf->Gmask | sf->Bmask;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1771 Uint32 amask = sf->Amask;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1772 Uint32 ashift = sf->Ashift;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1773 Uint64 multmask;
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1774
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1775 __m64 src1, dst1, mm_alpha, mm_zero, dmask;
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1776
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1777 mm_zero = _mm_setzero_si64(); /* 0 -> mm_zero */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1778 /* *INDENT-OFF* */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1779 multmask = ~(0xFFFFI64 << (ashift * 2));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1780 /* *INDENT-ON* */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1781 dmask = *(__m64 *) & multmask; /* dst alpha mask -> dmask */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1782
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1783 while (height--) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1784 /* *INDENT-OFF* */
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1785 DUFFS_LOOP4({
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1786 Uint32 alpha;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1787
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1788 _m_prefetch(srcp + 16);
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1789 _m_prefetch(dstp + 16);
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1790
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1791 alpha = *srcp & amask;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1792 if (alpha == 0) {
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1793 /* do nothing */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1794 } else if (alpha == amask) {
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1795 /* copy RGB, keep dst alpha */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1796 *dstp = (*srcp & chanmask) | (*dstp & ~chanmask);
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1797 } else {
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1798 src1 = _mm_cvtsi32_si64(*srcp); /* src(ARGB) -> src1 (0000ARGB)*/
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1799 src1 = _mm_unpacklo_pi8(src1, mm_zero); /* 0A0R0G0B -> src1 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1800
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1801 dst1 = _mm_cvtsi32_si64(*dstp); /* dst(ARGB) -> dst1 (0000ARGB)*/
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1802 dst1 = _mm_unpacklo_pi8(dst1, mm_zero); /* 0A0R0G0B -> dst1 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1803
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1804 mm_alpha = _mm_cvtsi32_si64(alpha); /* alpha -> mm_alpha (0000000A) */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1805 mm_alpha = _mm_srli_si64(mm_alpha, ashift); /* mm_alpha >> ashift -> mm_alpha(0000000A) */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1806 mm_alpha = _mm_unpacklo_pi16(mm_alpha, mm_alpha); /* 00000A0A -> mm_alpha */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1807 mm_alpha = _mm_unpacklo_pi32(mm_alpha, mm_alpha); /* 0A0A0A0A -> mm_alpha */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1808 mm_alpha = _mm_and_si64(mm_alpha, dmask); /* 000A0A0A -> mm_alpha, preserve dst alpha on add */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1809
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1810 /* blend */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1811 src1 = _mm_sub_pi16(src1, dst1);/* src - dst -> src1 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1812 src1 = _mm_mullo_pi16(src1, mm_alpha); /* (src - dst) * alpha -> src1 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1813 src1 = _mm_srli_pi16(src1, 8); /* src1 >> 8 -> src1(000R0G0B) */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1814 dst1 = _mm_add_pi8(src1, dst1); /* src1 + dst1(dst) -> dst1(0A0R0G0B) */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1815 dst1 = _mm_packs_pu16(dst1, mm_zero); /* 0000ARGB -> dst1 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1816
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1817 *dstp = _mm_cvtsi64_si32(dst1); /* dst1 -> pixel */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1818 }
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1819 ++srcp;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1820 ++dstp;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1821 }, width);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1822 /* *INDENT-ON* */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1823 srcp += srcskip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1824 dstp += dstskip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1825 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1826 _mm_empty();
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1827 }
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1828
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1829 /* End MSVC_ASMBLIT */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1830
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1831 #endif /* GCC_ASMBLIT, MSVC_ASMBLIT */
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1832
1
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1833 /* 16bpp special case for per-surface alpha=50%: blend 2 pixels in parallel */
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1834
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1835 /* blend a single 16 bit pixel at 50% */
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1836 #define BLEND16_50(d, s, mask) \
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1837 ((((s & mask) + (d & mask)) >> 1) + (s & d & (~mask & 0xffff)))
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1838
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1839 /* blend two 16 bit pixels at 50% */
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1840 #define BLEND2x16_50(d, s, mask) \
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1841 (((s & (mask | mask << 16)) >> 1) + ((d & (mask | mask << 16)) >> 1) \
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1842 + (s & d & (~(mask | mask << 16))))
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1843
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1844 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1845 Blit16to16SurfaceAlpha128(SDL_BlitInfo * info, Uint16 mask)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1846 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1847 int width = info->d_width;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1848 int height = info->d_height;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1849 Uint16 *srcp = (Uint16 *) info->s_pixels;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1850 int srcskip = info->s_skip >> 1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1851 Uint16 *dstp = (Uint16 *) info->d_pixels;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1852 int dstskip = info->d_skip >> 1;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1853
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1854 while (height--) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1855 if (((uintptr_t) srcp ^ (uintptr_t) dstp) & 2) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1856 /*
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1857 * Source and destination not aligned, pipeline it.
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1858 * This is mostly a win for big blits but no loss for
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1859 * small ones
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1860 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1861 Uint32 prev_sw;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1862 int w = width;
1
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1863
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1864 /* handle odd destination */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1865 if ((uintptr_t) dstp & 2) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1866 Uint16 d = *dstp, s = *srcp;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1867 *dstp = BLEND16_50(d, s, mask);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1868 dstp++;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1869 srcp++;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1870 w--;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1871 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1872 srcp++; /* srcp is now 32-bit aligned */
1
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1873
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1874 /* bootstrap pipeline with first halfword */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1875 prev_sw = ((Uint32 *) srcp)[-1];
1
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1876
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1877 while (w > 1) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1878 Uint32 sw, dw, s;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1879 sw = *(Uint32 *) srcp;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1880 dw = *(Uint32 *) dstp;
1443
9ebbbb4ae53b Fixed some OpenWatcom warnings
Sam Lantinga <slouken@libsdl.org>
parents: 1428
diff changeset
1881 #if SDL_BYTEORDER == SDL_BIG_ENDIAN
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1882 s = (prev_sw << 16) + (sw >> 16);
1443
9ebbbb4ae53b Fixed some OpenWatcom warnings
Sam Lantinga <slouken@libsdl.org>
parents: 1428
diff changeset
1883 #else
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1884 s = (prev_sw >> 16) + (sw << 16);
1443
9ebbbb4ae53b Fixed some OpenWatcom warnings
Sam Lantinga <slouken@libsdl.org>
parents: 1428
diff changeset
1885 #endif
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1886 prev_sw = sw;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1887 *(Uint32 *) dstp = BLEND2x16_50(dw, s, mask);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1888 dstp += 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1889 srcp += 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1890 w -= 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1891 }
1
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1892
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1893 /* final pixel if any */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1894 if (w) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1895 Uint16 d = *dstp, s;
1443
9ebbbb4ae53b Fixed some OpenWatcom warnings
Sam Lantinga <slouken@libsdl.org>
parents: 1428
diff changeset
1896 #if SDL_BYTEORDER == SDL_BIG_ENDIAN
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1897 s = (Uint16) prev_sw;
1443
9ebbbb4ae53b Fixed some OpenWatcom warnings
Sam Lantinga <slouken@libsdl.org>
parents: 1428
diff changeset
1898 #else
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1899 s = (Uint16) (prev_sw >> 16);
1443
9ebbbb4ae53b Fixed some OpenWatcom warnings
Sam Lantinga <slouken@libsdl.org>
parents: 1428
diff changeset
1900 #endif
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1901 *dstp = BLEND16_50(d, s, mask);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1902 srcp++;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1903 dstp++;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1904 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1905 srcp += srcskip - 1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1906 dstp += dstskip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1907 } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1908 /* source and destination are aligned */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1909 int w = width;
1
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1910
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1911 /* first odd pixel? */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1912 if ((uintptr_t) srcp & 2) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1913 Uint16 d = *dstp, s = *srcp;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1914 *dstp = BLEND16_50(d, s, mask);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1915 srcp++;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1916 dstp++;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1917 w--;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1918 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1919 /* srcp and dstp are now 32-bit aligned */
1
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1920
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1921 while (w > 1) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1922 Uint32 sw = *(Uint32 *) srcp;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1923 Uint32 dw = *(Uint32 *) dstp;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1924 *(Uint32 *) dstp = BLEND2x16_50(dw, sw, mask);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1925 srcp += 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1926 dstp += 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1927 w -= 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1928 }
1
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1929
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1930 /* last odd pixel? */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1931 if (w) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1932 Uint16 d = *dstp, s = *srcp;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1933 *dstp = BLEND16_50(d, s, mask);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1934 srcp++;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1935 dstp++;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1936 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1937 srcp += srcskip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1938 dstp += dstskip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1939 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1940 }
1
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1941 }
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1942
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1943 #if GCC_ASMBLIT
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1944 /* fast RGB565->RGB565 blending with surface alpha */
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1945 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1946 Blit565to565SurfaceAlphaMMX(SDL_BlitInfo * info)
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1947 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1948 unsigned alpha = info->src->alpha; /* downscale alpha to 5 bits */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1949 if (alpha == 128) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1950 Blit16to16SurfaceAlpha128(info, 0xf7de);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1951 } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1952 int width = info->d_width;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1953 int height = info->d_height;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1954 Uint16 *srcp = (Uint16 *) info->s_pixels;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1955 int srcskip = info->s_skip >> 1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1956 Uint16 *dstp = (Uint16 *) info->d_pixels;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1957 int dstskip = info->d_skip >> 1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1958 Uint32 s, d;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1959 Uint8 load[8];
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1960
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1961 alpha &= ~(1 + 2 + 4); /* cut alpha to get the exact same behaviour */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1962 *(Uint64 *) load = alpha;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1963 alpha >>= 3; /* downscale alpha to 5 bits */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1964
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1965 movq_m2r(*load, mm0); /* alpha(0000000A) -> mm0 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1966 punpcklwd_r2r(mm0, mm0); /* 00000A0A -> mm0 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1967 punpcklwd_r2r(mm0, mm0); /* 0A0A0A0A -> mm0 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1968 /* position alpha to allow for mullo and mulhi on diff channels
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1969 to reduce the number of operations */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1970 psllq_i2r(3, mm0);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1971
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1972 /* Setup the 565 color channel masks */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1973 *(Uint64 *) load = 0x07E007E007E007E0ULL;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1974 movq_m2r(*load, mm4); /* MASKGREEN -> mm4 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1975 *(Uint64 *) load = 0x001F001F001F001FULL;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1976 movq_m2r(*load, mm7); /* MASKBLUE -> mm7 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1977 while (height--) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1978 /* *INDENT-OFF* */
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1979 DUFFS_LOOP_QUATRO2(
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1980 {
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1981 s = *srcp++;
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1982 d = *dstp;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1983 /*
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1984 * shift out the middle component (green) to
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1985 * the high 16 bits, and process all three RGB
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1986 * components at the same time.
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1987 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1988 s = (s | s << 16) & 0x07e0f81f;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1989 d = (d | d << 16) & 0x07e0f81f;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1990 d += (s - d) * alpha >> 5;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1991 d &= 0x07e0f81f;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1992 *dstp++ = d | d >> 16;
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1993 },{
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1994 s = *srcp++;
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1995 d = *dstp;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1996 /*
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1997 * shift out the middle component (green) to
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1998 * the high 16 bits, and process all three RGB
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1999 * components at the same time.
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2000 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2001 s = (s | s << 16) & 0x07e0f81f;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2002 d = (d | d << 16) & 0x07e0f81f;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2003 d += (s - d) * alpha >> 5;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2004 d &= 0x07e0f81f;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2005 *dstp++ = d | d >> 16;
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2006 s = *srcp++;
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2007 d = *dstp;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2008 /*
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2009 * shift out the middle component (green) to
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2010 * the high 16 bits, and process all three RGB
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2011 * components at the same time.
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2012 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2013 s = (s | s << 16) & 0x07e0f81f;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2014 d = (d | d << 16) & 0x07e0f81f;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2015 d += (s - d) * alpha >> 5;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2016 d &= 0x07e0f81f;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2017 *dstp++ = d | d >> 16;
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2018 },{
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2019 movq_m2r((*srcp), mm2);/* 4 src pixels -> mm2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2020 movq_m2r((*dstp), mm3);/* 4 dst pixels -> mm3 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2021
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2022 /* red -- does not need a mask since the right shift clears
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2023 the uninteresting bits */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2024 movq_r2r(mm2, mm5); /* src -> mm5 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2025 movq_r2r(mm3, mm6); /* dst -> mm6 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2026 psrlw_i2r(11, mm5); /* mm5 >> 11 -> mm5 [000r 000r 000r 000r] */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2027 psrlw_i2r(11, mm6); /* mm6 >> 11 -> mm6 [000r 000r 000r 000r] */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2028
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2029 /* blend */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2030 psubw_r2r(mm6, mm5);/* src - dst -> mm5 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2031 pmullw_r2r(mm0, mm5); /* mm5 * alpha -> mm5 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2032 /* alpha used is actually 11 bits
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2033 11 + 5 = 16 bits, so the sign bits are lost */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2034 psrlw_i2r(11, mm5); /* mm5 >> 11 -> mm5 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2035 paddw_r2r(mm5, mm6); /* mm5 + mm6(dst) -> mm6 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2036 psllw_i2r(11, mm6); /* mm6 << 11 -> mm6 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2037
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2038 movq_r2r(mm6, mm1); /* save new reds in dsts */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2039
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2040 /* green -- process the bits in place */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2041 movq_r2r(mm2, mm5); /* src -> mm5 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2042 movq_r2r(mm3, mm6); /* dst -> mm6 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2043 pand_r2r(mm4, mm5); /* src & MASKGREEN -> mm5 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2044 pand_r2r(mm4, mm6); /* dst & MASKGREEN -> mm6 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2045
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2046 /* blend */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2047 psubw_r2r(mm6, mm5);/* src - dst -> mm5 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2048 pmulhw_r2r(mm0, mm5); /* mm5 * alpha -> mm5 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2049 /* 11 + 11 - 16 = 6 bits, so all the lower uninteresting
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2050 bits are gone and the sign bits present */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2051 psllw_i2r(5, mm5); /* mm5 << 5 -> mm5 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2052 paddw_r2r(mm5, mm6); /* mm5 + mm6(dst) -> mm6 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2053
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2054 por_r2r(mm6, mm1); /* save new greens in dsts */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2055
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2056 /* blue */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2057 movq_r2r(mm2, mm5); /* src -> mm5 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2058 movq_r2r(mm3, mm6); /* dst -> mm6 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2059 pand_r2r(mm7, mm5); /* src & MASKBLUE -> mm5[000b 000b 000b 000b] */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2060 pand_r2r(mm7, mm6); /* dst & MASKBLUE -> mm6[000b 000b 000b 000b] */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2061
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2062 /* blend */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2063 psubw_r2r(mm6, mm5);/* src - dst -> mm5 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2064 pmullw_r2r(mm0, mm5); /* mm5 * alpha -> mm5 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2065 /* 11 + 5 = 16 bits, so the sign bits are lost and
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2066 the interesting bits will need to be MASKed */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2067 psrlw_i2r(11, mm5); /* mm5 >> 11 -> mm5 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2068 paddw_r2r(mm5, mm6); /* mm5 + mm6(dst) -> mm6 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2069 pand_r2r(mm7, mm6); /* mm6 & MASKBLUE -> mm6[000b 000b 000b 000b] */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2070
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2071 por_r2r(mm6, mm1); /* save new blues in dsts */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2072
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2073 movq_r2m(mm1, *dstp); /* mm1 -> 4 dst pixels */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2074
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2075 srcp += 4;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2076 dstp += 4;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2077 }, width);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2078 /* *INDENT-ON* */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2079 srcp += srcskip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2080 dstp += dstskip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2081 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2082 emms();
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2083 }
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2084 }
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2085
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2086 /* fast RGB555->RGB555 blending with surface alpha */
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2087 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2088 Blit555to555SurfaceAlphaMMX(SDL_BlitInfo * info)
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2089 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2090 unsigned alpha = info->src->alpha; /* downscale alpha to 5 bits */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2091 if (alpha == 128) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2092 Blit16to16SurfaceAlpha128(info, 0xfbde);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2093 } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2094 int width = info->d_width;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2095 int height = info->d_height;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2096 Uint16 *srcp = (Uint16 *) info->s_pixels;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2097 int srcskip = info->s_skip >> 1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2098 Uint16 *dstp = (Uint16 *) info->d_pixels;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2099 int dstskip = info->d_skip >> 1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2100 Uint32 s, d;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2101 Uint8 load[8];
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2102
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2103 alpha &= ~(1 + 2 + 4); /* cut alpha to get the exact same behaviour */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2104 *(Uint64 *) load = alpha;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2105 alpha >>= 3; /* downscale alpha to 5 bits */
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2106
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2107 movq_m2r(*load, mm0); /* alpha(0000000A) -> mm0 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2108 punpcklwd_r2r(mm0, mm0); /* 00000A0A -> mm0 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2109 punpcklwd_r2r(mm0, mm0); /* 0A0A0A0A -> mm0 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2110 /* position alpha to allow for mullo and mulhi on diff channels
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2111 to reduce the number of operations */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2112 psllq_i2r(3, mm0);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2113
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2114 /* Setup the 555 color channel masks */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2115 *(Uint64 *) load = 0x03E003E003E003E0ULL;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2116 movq_m2r(*load, mm4); /* MASKGREEN -> mm4 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2117 *(Uint64 *) load = 0x001F001F001F001FULL;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2118 movq_m2r(*load, mm7); /* MASKBLUE -> mm7 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2119 while (height--) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2120 /* *INDENT-OFF* */
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2121 DUFFS_LOOP_QUATRO2(
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2122 {
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2123 s = *srcp++;
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2124 d = *dstp;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2125 /*
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2126 * shift out the middle component (green) to
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2127 * the high 16 bits, and process all three RGB
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2128 * components at the same time.
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2129 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2130 s = (s | s << 16) & 0x03e07c1f;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2131 d = (d | d << 16) & 0x03e07c1f;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2132 d += (s - d) * alpha >> 5;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2133 d &= 0x03e07c1f;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2134 *dstp++ = d | d >> 16;
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2135 },{
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2136 s = *srcp++;
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2137 d = *dstp;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2138 /*
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2139 * shift out the middle component (green) to
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2140 * the high 16 bits, and process all three RGB
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2141 * components at the same time.
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2142 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2143 s = (s | s << 16) & 0x03e07c1f;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2144 d = (d | d << 16) & 0x03e07c1f;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2145 d += (s - d) * alpha >> 5;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2146 d &= 0x03e07c1f;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2147 *dstp++ = d | d >> 16;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2148 s = *srcp++;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2149 d = *dstp;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2150 /*
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2151 * shift out the middle component (green) to
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2152 * the high 16 bits, and process all three RGB
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2153 * components at the same time.
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2154 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2155 s = (s | s << 16) & 0x03e07c1f;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2156 d = (d | d << 16) & 0x03e07c1f;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2157 d += (s - d) * alpha >> 5;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2158 d &= 0x03e07c1f;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2159 *dstp++ = d | d >> 16;
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2160 },{
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2161 movq_m2r((*srcp), mm2);/* 4 src pixels -> mm2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2162 movq_m2r((*dstp), mm3);/* 4 dst pixels -> mm3 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2163
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2164 /* red -- process the bits in place */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2165 psllq_i2r(5, mm4); /* turn MASKGREEN into MASKRED */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2166 /* by reusing the GREEN mask we free up another mmx
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2167 register to accumulate the result */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2168
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2169 movq_r2r(mm2, mm5); /* src -> mm5 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2170 movq_r2r(mm3, mm6); /* dst -> mm6 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2171 pand_r2r(mm4, mm5); /* src & MASKRED -> mm5 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2172 pand_r2r(mm4, mm6); /* dst & MASKRED -> mm6 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2173
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2174 /* blend */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2175 psubw_r2r(mm6, mm5);/* src - dst -> mm5 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2176 pmulhw_r2r(mm0, mm5); /* mm5 * alpha -> mm5 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2177 /* 11 + 15 - 16 = 10 bits, uninteresting bits will be
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2178 cleared by a MASK below */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2179 psllw_i2r(5, mm5); /* mm5 << 5 -> mm5 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2180 paddw_r2r(mm5, mm6); /* mm5 + mm6(dst) -> mm6 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2181 pand_r2r(mm4, mm6); /* mm6 & MASKRED -> mm6 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2182
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2183 psrlq_i2r(5, mm4); /* turn MASKRED back into MASKGREEN */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2184
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2185 movq_r2r(mm6, mm1); /* save new reds in dsts */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2186
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2187 /* green -- process the bits in place */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2188 movq_r2r(mm2, mm5); /* src -> mm5 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2189 movq_r2r(mm3, mm6); /* dst -> mm6 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2190 pand_r2r(mm4, mm5); /* src & MASKGREEN -> mm5 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2191 pand_r2r(mm4, mm6); /* dst & MASKGREEN -> mm6 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2192
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2193 /* blend */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2194 psubw_r2r(mm6, mm5);/* src - dst -> mm5 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2195 pmulhw_r2r(mm0, mm5); /* mm5 * alpha -> mm5 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2196 /* 11 + 10 - 16 = 5 bits, so all the lower uninteresting
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2197 bits are gone and the sign bits present */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2198 psllw_i2r(5, mm5); /* mm5 << 5 -> mm5 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2199 paddw_r2r(mm5, mm6); /* mm5 + mm6(dst) -> mm6 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2200
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2201 por_r2r(mm6, mm1); /* save new greens in dsts */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2202
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2203 /* blue */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2204 movq_r2r(mm2, mm5); /* src -> mm5 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2205 movq_r2r(mm3, mm6); /* dst -> mm6 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2206 pand_r2r(mm7, mm5); /* src & MASKBLUE -> mm5[000b 000b 000b 000b] */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2207 pand_r2r(mm7, mm6); /* dst & MASKBLUE -> mm6[000b 000b 000b 000b] */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2208
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2209 /* blend */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2210 psubw_r2r(mm6, mm5);/* src - dst -> mm5 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2211 pmullw_r2r(mm0, mm5); /* mm5 * alpha -> mm5 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2212 /* 11 + 5 = 16 bits, so the sign bits are lost and
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2213 the interesting bits will need to be MASKed */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2214 psrlw_i2r(11, mm5); /* mm5 >> 11 -> mm5 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2215 paddw_r2r(mm5, mm6); /* mm5 + mm6(dst) -> mm6 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2216 pand_r2r(mm7, mm6); /* mm6 & MASKBLUE -> mm6[000b 000b 000b 000b] */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2217
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2218 por_r2r(mm6, mm1); /* save new blues in dsts */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2219
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2220 movq_r2m(mm1, *dstp);/* mm1 -> 4 dst pixels */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2221
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2222 srcp += 4;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2223 dstp += 4;
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2224 }, width);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2225 /* *INDENT-ON* */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2226 srcp += srcskip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2227 dstp += dstskip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2228 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2229 emms();
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2230 }
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2231 }
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2232
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2233 /* End GCC_ASMBLIT */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2234
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2235 #elif MSVC_ASMBLIT
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2236 /* fast RGB565->RGB565 blending with surface alpha */
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2237 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2238 Blit565to565SurfaceAlphaMMX(SDL_BlitInfo * info)
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2239 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2240 unsigned alpha = info->src->alpha;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2241 if (alpha == 128) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2242 Blit16to16SurfaceAlpha128(info, 0xf7de);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2243 } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2244 int width = info->d_width;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2245 int height = info->d_height;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2246 Uint16 *srcp = (Uint16 *) info->s_pixels;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2247 int srcskip = info->s_skip >> 1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2248 Uint16 *dstp = (Uint16 *) info->d_pixels;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2249 int dstskip = info->d_skip >> 1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2250 Uint32 s, d;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2251
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2252 __m64 src1, dst1, src2, dst2, gmask, bmask, mm_res, mm_alpha;
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2253
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2254 alpha &= ~(1 + 2 + 4); /* cut alpha to get the exact same behaviour */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2255 mm_alpha = _mm_set_pi32(0, alpha); /* 0000000A -> mm_alpha */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2256 alpha >>= 3; /* downscale alpha to 5 bits */
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2257
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2258 mm_alpha = _mm_unpacklo_pi16(mm_alpha, mm_alpha); /* 00000A0A -> mm_alpha */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2259 mm_alpha = _mm_unpacklo_pi32(mm_alpha, mm_alpha); /* 0A0A0A0A -> mm_alpha */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2260 /* position alpha to allow for mullo and mulhi on diff channels
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2261 to reduce the number of operations */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2262 mm_alpha = _mm_slli_si64(mm_alpha, 3);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2263
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2264 /* Setup the 565 color channel masks */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2265 gmask = _mm_set_pi32(0x07E007E0, 0x07E007E0); /* MASKGREEN -> gmask */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2266 bmask = _mm_set_pi32(0x001F001F, 0x001F001F); /* MASKBLUE -> bmask */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2267
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2268 while (height--) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2269 /* *INDENT-OFF* */
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2270 DUFFS_LOOP_QUATRO2(
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2271 {
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2272 s = *srcp++;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2273 d = *dstp;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2274 /*
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2275 * shift out the middle component (green) to
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2276 * the high 16 bits, and process all three RGB
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2277 * components at the same time.
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2278 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2279 s = (s | s << 16) & 0x07e0f81f;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2280 d = (d | d << 16) & 0x07e0f81f;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2281 d += (s - d) * alpha >> 5;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2282 d &= 0x07e0f81f;
1546
4b835e36633d *** empty log message ***
Sam Lantinga <slouken@libsdl.org>
parents: 1542
diff changeset
2283 *dstp++ = (Uint16)(d | d >> 16);
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2284 },{
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2285 s = *srcp++;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2286 d = *dstp;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2287 /*
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2288 * shift out the middle component (green) to
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2289 * the high 16 bits, and process all three RGB
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2290 * components at the same time.
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2291 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2292 s = (s | s << 16) & 0x07e0f81f;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2293 d = (d | d << 16) & 0x07e0f81f;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2294 d += (s - d) * alpha >> 5;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2295 d &= 0x07e0f81f;
1546
4b835e36633d *** empty log message ***
Sam Lantinga <slouken@libsdl.org>
parents: 1542
diff changeset
2296 *dstp++ = (Uint16)(d | d >> 16);
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2297 s = *srcp++;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2298 d = *dstp;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2299 /*
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2300 * shift out the middle component (green) to
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2301 * the high 16 bits, and process all three RGB
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2302 * components at the same time.
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2303 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2304 s = (s | s << 16) & 0x07e0f81f;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2305 d = (d | d << 16) & 0x07e0f81f;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2306 d += (s - d) * alpha >> 5;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2307 d &= 0x07e0f81f;
1546
4b835e36633d *** empty log message ***
Sam Lantinga <slouken@libsdl.org>
parents: 1542
diff changeset
2308 *dstp++ = (Uint16)(d | d >> 16);
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2309 },{
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2310 src1 = *(__m64*)srcp; /* 4 src pixels -> src1 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2311 dst1 = *(__m64*)dstp; /* 4 dst pixels -> dst1 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2312
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2313 /* red */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2314 src2 = src1;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2315 src2 = _mm_srli_pi16(src2, 11); /* src2 >> 11 -> src2 [000r 000r 000r 000r] */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2316
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2317 dst2 = dst1;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2318 dst2 = _mm_srli_pi16(dst2, 11); /* dst2 >> 11 -> dst2 [000r 000r 000r 000r] */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2319
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2320 /* blend */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2321 src2 = _mm_sub_pi16(src2, dst2);/* src - dst -> src2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2322 src2 = _mm_mullo_pi16(src2, mm_alpha); /* src2 * alpha -> src2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2323 src2 = _mm_srli_pi16(src2, 11); /* src2 >> 11 -> src2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2324 dst2 = _mm_add_pi16(src2, dst2); /* src2 + dst2 -> dst2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2325 dst2 = _mm_slli_pi16(dst2, 11); /* dst2 << 11 -> dst2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2326
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2327 mm_res = dst2; /* RED -> mm_res */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2328
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2329 /* green -- process the bits in place */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2330 src2 = src1;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2331 src2 = _mm_and_si64(src2, gmask); /* src & MASKGREEN -> src2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2332
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2333 dst2 = dst1;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2334 dst2 = _mm_and_si64(dst2, gmask); /* dst & MASKGREEN -> dst2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2335
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2336 /* blend */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2337 src2 = _mm_sub_pi16(src2, dst2);/* src - dst -> src2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2338 src2 = _mm_mulhi_pi16(src2, mm_alpha); /* src2 * alpha -> src2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2339 src2 = _mm_slli_pi16(src2, 5); /* src2 << 5 -> src2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2340 dst2 = _mm_add_pi16(src2, dst2); /* src2 + dst2 -> dst2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2341
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2342 mm_res = _mm_or_si64(mm_res, dst2); /* RED | GREEN -> mm_res */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2343
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2344 /* blue */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2345 src2 = src1;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2346 src2 = _mm_and_si64(src2, bmask); /* src & MASKBLUE -> src2[000b 000b 000b 000b] */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2347
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2348 dst2 = dst1;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2349 dst2 = _mm_and_si64(dst2, bmask); /* dst & MASKBLUE -> dst2[000b 000b 000b 000b] */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2350
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2351 /* blend */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2352 src2 = _mm_sub_pi16(src2, dst2);/* src - dst -> src2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2353 src2 = _mm_mullo_pi16(src2, mm_alpha); /* src2 * alpha -> src2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2354 src2 = _mm_srli_pi16(src2, 11); /* src2 >> 11 -> src2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2355 dst2 = _mm_add_pi16(src2, dst2); /* src2 + dst2 -> dst2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2356 dst2 = _mm_and_si64(dst2, bmask); /* dst2 & MASKBLUE -> dst2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2357
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2358 mm_res = _mm_or_si64(mm_res, dst2); /* RED | GREEN | BLUE -> mm_res */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2359
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2360 *(__m64*)dstp = mm_res; /* mm_res -> 4 dst pixels */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2361
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2362 srcp += 4;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2363 dstp += 4;
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2364 }, width);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2365 /* *INDENT-ON* */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2366 srcp += srcskip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2367 dstp += dstskip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2368 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2369 _mm_empty();
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2370 }
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2371 }
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2372
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2373 /* fast RGB555->RGB555 blending with surface alpha */
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2374 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2375 Blit555to555SurfaceAlphaMMX(SDL_BlitInfo * info)
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2376 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2377 unsigned alpha = info->src->alpha;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2378 if (alpha == 128) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2379 Blit16to16SurfaceAlpha128(info, 0xfbde);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2380 } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2381 int width = info->d_width;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2382 int height = info->d_height;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2383 Uint16 *srcp = (Uint16 *) info->s_pixels;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2384 int srcskip = info->s_skip >> 1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2385 Uint16 *dstp = (Uint16 *) info->d_pixels;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2386 int dstskip = info->d_skip >> 1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2387 Uint32 s, d;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2388
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2389 __m64 src1, dst1, src2, dst2, rmask, gmask, bmask, mm_res, mm_alpha;
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2390
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2391 alpha &= ~(1 + 2 + 4); /* cut alpha to get the exact same behaviour */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2392 mm_alpha = _mm_set_pi32(0, alpha); /* 0000000A -> mm_alpha */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2393 alpha >>= 3; /* downscale alpha to 5 bits */
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2394
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2395 mm_alpha = _mm_unpacklo_pi16(mm_alpha, mm_alpha); /* 00000A0A -> mm_alpha */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2396 mm_alpha = _mm_unpacklo_pi32(mm_alpha, mm_alpha); /* 0A0A0A0A -> mm_alpha */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2397 /* position alpha to allow for mullo and mulhi on diff channels
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2398 to reduce the number of operations */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2399 mm_alpha = _mm_slli_si64(mm_alpha, 3);
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2400
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2401 /* Setup the 555 color channel masks */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2402 rmask = _mm_set_pi32(0x7C007C00, 0x7C007C00); /* MASKRED -> rmask */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2403 gmask = _mm_set_pi32(0x03E003E0, 0x03E003E0); /* MASKGREEN -> gmask */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2404 bmask = _mm_set_pi32(0x001F001F, 0x001F001F); /* MASKBLUE -> bmask */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2405
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2406 while (height--) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2407 /* *INDENT-OFF* */
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2408 DUFFS_LOOP_QUATRO2(
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2409 {
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2410 s = *srcp++;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2411 d = *dstp;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2412 /*
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2413 * shift out the middle component (green) to
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2414 * the high 16 bits, and process all three RGB
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2415 * components at the same time.
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2416 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2417 s = (s | s << 16) & 0x03e07c1f;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2418 d = (d | d << 16) & 0x03e07c1f;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2419 d += (s - d) * alpha >> 5;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2420 d &= 0x03e07c1f;
1546
4b835e36633d *** empty log message ***
Sam Lantinga <slouken@libsdl.org>
parents: 1542
diff changeset
2421 *dstp++ = (Uint16)(d | d >> 16);
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2422 },{
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2423 s = *srcp++;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2424 d = *dstp;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2425 /*
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2426 * shift out the middle component (green) to
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2427 * the high 16 bits, and process all three RGB
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2428 * components at the same time.
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2429 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2430 s = (s | s << 16) & 0x03e07c1f;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2431 d = (d | d << 16) & 0x03e07c1f;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2432 d += (s - d) * alpha >> 5;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2433 d &= 0x03e07c1f;
1546
4b835e36633d *** empty log message ***
Sam Lantinga <slouken@libsdl.org>
parents: 1542
diff changeset
2434 *dstp++ = (Uint16)(d | d >> 16);
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2435 s = *srcp++;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2436 d = *dstp;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2437 /*
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2438 * shift out the middle component (green) to
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2439 * the high 16 bits, and process all three RGB
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2440 * components at the same time.
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2441 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2442 s = (s | s << 16) & 0x03e07c1f;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2443 d = (d | d << 16) & 0x03e07c1f;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2444 d += (s - d) * alpha >> 5;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2445 d &= 0x03e07c1f;
1546
4b835e36633d *** empty log message ***
Sam Lantinga <slouken@libsdl.org>
parents: 1542
diff changeset
2446 *dstp++ = (Uint16)(d | d >> 16);
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2447 },{
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2448 src1 = *(__m64*)srcp; /* 4 src pixels -> src1 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2449 dst1 = *(__m64*)dstp; /* 4 dst pixels -> dst1 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2450
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2451 /* red -- process the bits in place */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2452 src2 = src1;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2453 src2 = _mm_and_si64(src2, rmask); /* src & MASKRED -> src2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2454
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2455 dst2 = dst1;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2456 dst2 = _mm_and_si64(dst2, rmask); /* dst & MASKRED -> dst2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2457
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2458 /* blend */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2459 src2 = _mm_sub_pi16(src2, dst2);/* src - dst -> src2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2460 src2 = _mm_mulhi_pi16(src2, mm_alpha); /* src2 * alpha -> src2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2461 src2 = _mm_slli_pi16(src2, 5); /* src2 << 5 -> src2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2462 dst2 = _mm_add_pi16(src2, dst2); /* src2 + dst2 -> dst2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2463 dst2 = _mm_and_si64(dst2, rmask); /* dst2 & MASKRED -> dst2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2464
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2465 mm_res = dst2; /* RED -> mm_res */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2466
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2467 /* green -- process the bits in place */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2468 src2 = src1;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2469 src2 = _mm_and_si64(src2, gmask); /* src & MASKGREEN -> src2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2470
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2471 dst2 = dst1;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2472 dst2 = _mm_and_si64(dst2, gmask); /* dst & MASKGREEN -> dst2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2473
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2474 /* blend */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2475 src2 = _mm_sub_pi16(src2, dst2);/* src - dst -> src2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2476 src2 = _mm_mulhi_pi16(src2, mm_alpha); /* src2 * alpha -> src2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2477 src2 = _mm_slli_pi16(src2, 5); /* src2 << 5 -> src2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2478 dst2 = _mm_add_pi16(src2, dst2); /* src2 + dst2 -> dst2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2479
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2480 mm_res = _mm_or_si64(mm_res, dst2); /* RED | GREEN -> mm_res */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2481
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2482 /* blue */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2483 src2 = src1; /* src -> src2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2484 src2 = _mm_and_si64(src2, bmask); /* src & MASKBLUE -> src2[000b 000b 000b 000b] */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2485
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2486 dst2 = dst1; /* dst -> dst2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2487 dst2 = _mm_and_si64(dst2, bmask); /* dst & MASKBLUE -> dst2[000b 000b 000b 000b] */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2488
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2489 /* blend */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2490 src2 = _mm_sub_pi16(src2, dst2);/* src - dst -> src2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2491 src2 = _mm_mullo_pi16(src2, mm_alpha); /* src2 * alpha -> src2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2492 src2 = _mm_srli_pi16(src2, 11); /* src2 >> 11 -> src2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2493 dst2 = _mm_add_pi16(src2, dst2); /* src2 + dst2 -> dst2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2494 dst2 = _mm_and_si64(dst2, bmask); /* dst2 & MASKBLUE -> dst2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2495
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2496 mm_res = _mm_or_si64(mm_res, dst2); /* RED | GREEN | BLUE -> mm_res */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2497
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2498 *(__m64*)dstp = mm_res; /* mm_res -> 4 dst pixels */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2499
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2500 srcp += 4;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2501 dstp += 4;
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2502 }, width);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2503 /* *INDENT-ON* */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2504 srcp += srcskip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2505 dstp += dstskip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2506 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2507 _mm_empty();
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2508 }
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2509 }
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2510 #endif /* GCC_ASMBLIT, MSVC_ASMBLIT */
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2511
1
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2512 /* fast RGB565->RGB565 blending with surface alpha */
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2513 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2514 Blit565to565SurfaceAlpha(SDL_BlitInfo * info)
1
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2515 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2516 unsigned alpha = info->src->alpha;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2517 if (alpha == 128) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2518 Blit16to16SurfaceAlpha128(info, 0xf7de);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2519 } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2520 int width = info->d_width;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2521 int height = info->d_height;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2522 Uint16 *srcp = (Uint16 *) info->s_pixels;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2523 int srcskip = info->s_skip >> 1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2524 Uint16 *dstp = (Uint16 *) info->d_pixels;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2525 int dstskip = info->d_skip >> 1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2526 alpha >>= 3; /* downscale alpha to 5 bits */
1
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2527
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2528 while (height--) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2529 /* *INDENT-OFF* */
1
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2530 DUFFS_LOOP4({
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2531 Uint32 s = *srcp++;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2532 Uint32 d = *dstp;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2533 /*
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2534 * shift out the middle component (green) to
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2535 * the high 16 bits, and process all three RGB
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2536 * components at the same time.
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2537 */
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2538 s = (s | s << 16) & 0x07e0f81f;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2539 d = (d | d << 16) & 0x07e0f81f;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2540 d += (s - d) * alpha >> 5;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2541 d &= 0x07e0f81f;
1428
5f52867ba65c Update for Visual C++ 6.0
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
2542 *dstp++ = (Uint16)(d | d >> 16);
1
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2543 }, width);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2544 /* *INDENT-ON* */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2545 srcp += srcskip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2546 dstp += dstskip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2547 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2548 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2549 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2550
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2551 /* fast RGB555->RGB555 blending with surface alpha */
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2552 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2553 Blit555to555SurfaceAlpha(SDL_BlitInfo * info)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2554 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2555 unsigned alpha = info->src->alpha; /* downscale alpha to 5 bits */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2556 if (alpha == 128) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2557 Blit16to16SurfaceAlpha128(info, 0xfbde);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2558 } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2559 int width = info->d_width;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2560 int height = info->d_height;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2561 Uint16 *srcp = (Uint16 *) info->s_pixels;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2562 int srcskip = info->s_skip >> 1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2563 Uint16 *dstp = (Uint16 *) info->d_pixels;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2564 int dstskip = info->d_skip >> 1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2565 alpha >>= 3; /* downscale alpha to 5 bits */
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2566
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2567 while (height--) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2568 /* *INDENT-OFF* */
1
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2569 DUFFS_LOOP4({
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2570 Uint32 s = *srcp++;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2571 Uint32 d = *dstp;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2572 /*
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2573 * shift out the middle component (green) to
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2574 * the high 16 bits, and process all three RGB
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2575 * components at the same time.
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2576 */
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2577 s = (s | s << 16) & 0x03e07c1f;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2578 d = (d | d << 16) & 0x03e07c1f;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2579 d += (s - d) * alpha >> 5;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2580 d &= 0x03e07c1f;
1428
5f52867ba65c Update for Visual C++ 6.0
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
2581 *dstp++ = (Uint16)(d | d >> 16);
1
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2582 }, width);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2583 /* *INDENT-ON* */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2584 srcp += srcskip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2585 dstp += dstskip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2586 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2587 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2588 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2589
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2590 /* fast ARGB8888->RGB565 blending with pixel alpha */
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2591 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2592 BlitARGBto565PixelAlpha(SDL_BlitInfo * info)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2593 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2594 int width = info->d_width;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2595 int height = info->d_height;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2596 Uint32 *srcp = (Uint32 *) info->s_pixels;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2597 int srcskip = info->s_skip >> 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2598 Uint16 *dstp = (Uint16 *) info->d_pixels;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2599 int dstskip = info->d_skip >> 1;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2600
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2601 while (height--) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2602 /* *INDENT-OFF* */
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2603 DUFFS_LOOP4({
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2604 Uint32 s = *srcp;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2605 unsigned alpha = s >> 27; /* downscale alpha to 5 bits */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2606 /* FIXME: Here we special-case opaque alpha since the
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2607 compositioning used (>>8 instead of /255) doesn't handle
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2608 it correctly. Also special-case alpha=0 for speed?
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2609 Benchmark this! */
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2610 if(alpha) {
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2611 if(alpha == (SDL_ALPHA_OPAQUE >> 3)) {
1428
5f52867ba65c Update for Visual C++ 6.0
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
2612 *dstp = (Uint16)((s >> 8 & 0xf800) + (s >> 5 & 0x7e0) + (s >> 3 & 0x1f));
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2613 } else {
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2614 Uint32 d = *dstp;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2615 /*
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2616 * convert source and destination to G0RAB65565
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2617 * and blend all components at the same time
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2618 */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2619 s = ((s & 0xfc00) << 11) + (s >> 8 & 0xf800)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2620 + (s >> 3 & 0x1f);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2621 d = (d | d << 16) & 0x07e0f81f;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2622 d += (s - d) * alpha >> 5;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2623 d &= 0x07e0f81f;
1428
5f52867ba65c Update for Visual C++ 6.0
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
2624 *dstp = (Uint16)(d | d >> 16);
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2625 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2626 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2627 srcp++;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2628 dstp++;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2629 }, width);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2630 /* *INDENT-ON* */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2631 srcp += srcskip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2632 dstp += dstskip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2633 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2634 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2635
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2636 /* fast ARGB8888->RGB555 blending with pixel alpha */
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2637 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2638 BlitARGBto555PixelAlpha(SDL_BlitInfo * info)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2639 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2640 int width = info->d_width;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2641 int height = info->d_height;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2642 Uint32 *srcp = (Uint32 *) info->s_pixels;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2643 int srcskip = info->s_skip >> 2;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2644 Uint16 *dstp = (Uint16 *) info->d_pixels;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2645 int dstskip = info->d_skip >> 1;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2646
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2647 while (height--) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2648 /* *INDENT-OFF* */
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2649 DUFFS_LOOP4({
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2650 unsigned alpha;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2651 Uint32 s = *srcp;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2652 alpha = s >> 27; /* downscale alpha to 5 bits */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2653 /* FIXME: Here we special-case opaque alpha since the
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2654 compositioning used (>>8 instead of /255) doesn't handle
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2655 it correctly. Also special-case alpha=0 for speed?
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2656 Benchmark this! */
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2657 if(alpha) {
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2658 if(alpha == (SDL_ALPHA_OPAQUE >> 3)) {
1428
5f52867ba65c Update for Visual C++ 6.0
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
2659 *dstp = (Uint16)((s >> 9 & 0x7c00) + (s >> 6 & 0x3e0) + (s >> 3 & 0x1f));
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2660 } else {
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2661 Uint32 d = *dstp;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2662 /*
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2663 * convert source and destination to G0RAB65565
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2664 * and blend all components at the same time
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2665 */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2666 s = ((s & 0xf800) << 10) + (s >> 9 & 0x7c00)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2667 + (s >> 3 & 0x1f);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2668 d = (d | d << 16) & 0x03e07c1f;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2669 d += (s - d) * alpha >> 5;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2670 d &= 0x03e07c1f;
1428
5f52867ba65c Update for Visual C++ 6.0
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
2671 *dstp = (Uint16)(d | d >> 16);
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2672 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2673 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2674 srcp++;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2675 dstp++;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2676 }, width);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2677 /* *INDENT-ON* */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2678 srcp += srcskip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2679 dstp += dstskip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2680 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2681 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2682
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2683 /* General (slow) N->N blending with per-surface alpha */
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2684 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2685 BlitNtoNSurfaceAlpha(SDL_BlitInfo * info)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2686 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2687 int width = info->d_width;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2688 int height = info->d_height;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2689 Uint8 *src = info->s_pixels;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2690 int srcskip = info->s_skip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2691 Uint8 *dst = info->d_pixels;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2692 int dstskip = info->d_skip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2693 SDL_PixelFormat *srcfmt = info->src;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2694 SDL_PixelFormat *dstfmt = info->dst;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2695 int srcbpp = srcfmt->BytesPerPixel;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2696 int dstbpp = dstfmt->BytesPerPixel;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2697 unsigned sA = srcfmt->alpha;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2698 unsigned dA = dstfmt->Amask ? SDL_ALPHA_OPAQUE : 0;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2699
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2700 if (sA) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2701 while (height--) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2702 /* *INDENT-OFF* */
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2703 DUFFS_LOOP4(
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2704 {
1162
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents: 1047
diff changeset
2705 Uint32 Pixel;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2706 unsigned sR;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2707 unsigned sG;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2708 unsigned sB;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2709 unsigned dR;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2710 unsigned dG;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2711 unsigned dB;
1162
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents: 1047
diff changeset
2712 DISEMBLE_RGB(src, srcbpp, srcfmt, Pixel, sR, sG, sB);
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents: 1047
diff changeset
2713 DISEMBLE_RGB(dst, dstbpp, dstfmt, Pixel, dR, dG, dB);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2714 ALPHA_BLEND(sR, sG, sB, sA, dR, dG, dB);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2715 ASSEMBLE_RGBA(dst, dstbpp, dstfmt, dR, dG, dB, dA);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2716 src += srcbpp;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2717 dst += dstbpp;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2718 },
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2719 width);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2720 /* *INDENT-ON* */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2721 src += srcskip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2722 dst += dstskip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2723 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2724 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2725 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2726
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2727 /* General (slow) colorkeyed N->N blending with per-surface alpha */
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2728 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2729 BlitNtoNSurfaceAlphaKey(SDL_BlitInfo * info)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2730 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2731 int width = info->d_width;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2732 int height = info->d_height;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2733 Uint8 *src = info->s_pixels;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2734 int srcskip = info->s_skip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2735 Uint8 *dst = info->d_pixels;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2736 int dstskip = info->d_skip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2737 SDL_PixelFormat *srcfmt = info->src;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2738 SDL_PixelFormat *dstfmt = info->dst;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2739 Uint32 ckey = srcfmt->colorkey;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2740 int srcbpp = srcfmt->BytesPerPixel;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2741 int dstbpp = dstfmt->BytesPerPixel;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2742 unsigned sA = srcfmt->alpha;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2743 unsigned dA = dstfmt->Amask ? SDL_ALPHA_OPAQUE : 0;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2744
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2745 while (height--) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2746 /* *INDENT-OFF* */
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2747 DUFFS_LOOP4(
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2748 {
1162
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents: 1047
diff changeset
2749 Uint32 Pixel;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2750 unsigned sR;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2751 unsigned sG;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2752 unsigned sB;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2753 unsigned dR;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2754 unsigned dG;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2755 unsigned dB;
1162
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents: 1047
diff changeset
2756 RETRIEVE_RGB_PIXEL(src, srcbpp, Pixel);
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents: 1047
diff changeset
2757 if(sA && Pixel != ckey) {
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents: 1047
diff changeset
2758 RGB_FROM_PIXEL(Pixel, srcfmt, sR, sG, sB);
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents: 1047
diff changeset
2759 DISEMBLE_RGB(dst, dstbpp, dstfmt, Pixel, dR, dG, dB);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2760 ALPHA_BLEND(sR, sG, sB, sA, dR, dG, dB);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2761 ASSEMBLE_RGBA(dst, dstbpp, dstfmt, dR, dG, dB, dA);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2762 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2763 src += srcbpp;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2764 dst += dstbpp;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2765 },
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2766 width);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2767 /* *INDENT-ON* */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2768 src += srcskip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2769 dst += dstskip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2770 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2771 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2772
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2773 /* General (slow) N->N blending with pixel alpha */
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2774 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2775 BlitNtoNPixelAlpha(SDL_BlitInfo * info)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2776 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2777 int width = info->d_width;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2778 int height = info->d_height;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2779 Uint8 *src = info->s_pixels;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2780 int srcskip = info->s_skip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2781 Uint8 *dst = info->d_pixels;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2782 int dstskip = info->d_skip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2783 SDL_PixelFormat *srcfmt = info->src;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2784 SDL_PixelFormat *dstfmt = info->dst;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2785
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2786 int srcbpp;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2787 int dstbpp;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2788
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2789 /* Set up some basic variables */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2790 srcbpp = srcfmt->BytesPerPixel;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2791 dstbpp = dstfmt->BytesPerPixel;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2792
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2793 /* FIXME: for 8bpp source alpha, this doesn't get opaque values
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2794 quite right. for <8bpp source alpha, it gets them very wrong
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2795 (check all macros!)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2796 It is unclear whether there is a good general solution that doesn't
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2797 need a branch (or a divide). */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2798 while (height--) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2799 /* *INDENT-OFF* */
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2800 DUFFS_LOOP4(
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2801 {
1162
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents: 1047
diff changeset
2802 Uint32 Pixel;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2803 unsigned sR;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2804 unsigned sG;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2805 unsigned sB;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2806 unsigned dR;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2807 unsigned dG;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2808 unsigned dB;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2809 unsigned sA;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2810 unsigned dA;
1162
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents: 1047
diff changeset
2811 DISEMBLE_RGBA(src, srcbpp, srcfmt, Pixel, sR, sG, sB, sA);
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2812 if(sA) {
1162
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents: 1047
diff changeset
2813 DISEMBLE_RGBA(dst, dstbpp, dstfmt, Pixel, dR, dG, dB, dA);
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2814 ALPHA_BLEND(sR, sG, sB, sA, dR, dG, dB);
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2815 ASSEMBLE_RGBA(dst, dstbpp, dstfmt, dR, dG, dB, dA);
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2816 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2817 src += srcbpp;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2818 dst += dstbpp;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2819 },
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2820 width);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2821 /* *INDENT-ON* */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2822 src += srcskip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2823 dst += dstskip;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2824 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2825 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2826
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2827
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2828 SDL_loblit
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2829 SDL_CalculateAlphaBlit(SDL_Surface * surface, int blit_index)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2830 {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2831 SDL_PixelFormat *sf = surface->format;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2832 SDL_PixelFormat *df = surface->map->dst->format;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2833
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2834 if (sf->Amask == 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2835 if ((surface->flags & SDL_SRCCOLORKEY) == SDL_SRCCOLORKEY) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2836 if (df->BytesPerPixel == 1)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2837 return BlitNto1SurfaceAlphaKey;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2838 else
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
2839 #if SDL_ALTIVEC_BLITTERS
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2840 if (sf->BytesPerPixel == 4 && df->BytesPerPixel == 4 &&
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2841 !(surface->map->dst->flags & SDL_HWSURFACE)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2842 && SDL_HasAltiVec())
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2843 return Blit32to32SurfaceAlphaKeyAltivec;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2844 else
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
2845 #endif
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2846 return BlitNtoNSurfaceAlphaKey;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2847 } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2848 /* Per-surface alpha blits */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2849 switch (df->BytesPerPixel) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2850 case 1:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2851 return BlitNto1SurfaceAlpha;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2852
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2853 case 2:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2854 if (surface->map->identity) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2855 if (df->Gmask == 0x7e0) {
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
2856 #if MMX_ASMBLIT
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2857 if (SDL_HasMMX())
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2858 return Blit565to565SurfaceAlphaMMX;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2859 else
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2860 #endif
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2861 return Blit565to565SurfaceAlpha;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2862 } else if (df->Gmask == 0x3e0) {
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
2863 #if MMX_ASMBLIT
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2864 if (SDL_HasMMX())
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2865 return Blit555to555SurfaceAlphaMMX;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2866 else
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2867 #endif
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2868 return Blit555to555SurfaceAlpha;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2869 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2870 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2871 return BlitNtoNSurfaceAlpha;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2872
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2873 case 4:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2874 if (sf->Rmask == df->Rmask
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2875 && sf->Gmask == df->Gmask
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2876 && sf->Bmask == df->Bmask && sf->BytesPerPixel == 4) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2877 #if MMX_ASMBLIT
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2878 if (sf->Rshift % 8 == 0
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2879 && sf->Gshift % 8 == 0
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2880 && sf->Bshift % 8 == 0 && SDL_HasMMX())
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2881 return BlitRGBtoRGBSurfaceAlphaMMX;
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2882 #endif
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2883 if ((sf->Rmask | sf->Gmask | sf->Bmask) == 0xffffff) {
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2884 #if SDL_ALTIVEC_BLITTERS
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2885 if (!(surface->map->dst->flags & SDL_HWSURFACE)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2886 && SDL_HasAltiVec())
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2887 return BlitRGBtoRGBSurfaceAlphaAltivec;
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2888 #endif
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2889 return BlitRGBtoRGBSurfaceAlpha;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2890 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2891 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2892 #if SDL_ALTIVEC_BLITTERS
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2893 if ((sf->BytesPerPixel == 4) &&
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2894 !(surface->map->dst->flags & SDL_HWSURFACE)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2895 && SDL_HasAltiVec())
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2896 return Blit32to32SurfaceAlphaAltivec;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2897 else
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2898 #endif
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2899 return BlitNtoNSurfaceAlpha;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2900
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2901 case 3:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2902 default:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2903 return BlitNtoNSurfaceAlpha;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2904 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2905 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2906 } else {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2907 /* Per-pixel alpha blits */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2908 switch (df->BytesPerPixel) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2909 case 1:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2910 return BlitNto1PixelAlpha;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2911
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2912 case 2:
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
2913 #if SDL_ALTIVEC_BLITTERS
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2914 if (sf->BytesPerPixel == 4
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2915 && !(surface->map->dst->flags & SDL_HWSURFACE)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2916 && df->Gmask == 0x7e0 && df->Bmask == 0x1f
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2917 && SDL_HasAltiVec())
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2918 return Blit32to565PixelAlphaAltivec;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2919 else
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
2920 #endif
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2921 if (sf->BytesPerPixel == 4 && sf->Amask == 0xff000000
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2922 && sf->Gmask == 0xff00
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2923 && ((sf->Rmask == 0xff && df->Rmask == 0x1f)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2924 || (sf->Bmask == 0xff && df->Bmask == 0x1f))) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2925 if (df->Gmask == 0x7e0)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2926 return BlitARGBto565PixelAlpha;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2927 else if (df->Gmask == 0x3e0)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2928 return BlitARGBto555PixelAlpha;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2929 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2930 return BlitNtoNPixelAlpha;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2931
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2932 case 4:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2933 if (sf->Rmask == df->Rmask
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2934 && sf->Gmask == df->Gmask
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2935 && sf->Bmask == df->Bmask && sf->BytesPerPixel == 4) {
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
2936 #if MMX_ASMBLIT
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2937 if (sf->Rshift % 8 == 0
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2938 && sf->Gshift % 8 == 0
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2939 && sf->Bshift % 8 == 0
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2940 && sf->Ashift % 8 == 0 && sf->Aloss == 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2941 if (SDL_Has3DNow())
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2942 return BlitRGBtoRGBPixelAlphaMMX3DNOW;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2943 if (SDL_HasMMX())
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2944 return BlitRGBtoRGBPixelAlphaMMX;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2945 }
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2946 #endif
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2947 if (sf->Amask == 0xff000000) {
1617
b255b4058d37 Patch from Alex to fix reverted code
Sam Lantinga <slouken@libsdl.org>
parents: 1546
diff changeset
2948 #if SDL_ALTIVEC_BLITTERS
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2949 if (!(surface->map->dst->flags & SDL_HWSURFACE)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2950 && SDL_HasAltiVec())
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2951 return BlitRGBtoRGBPixelAlphaAltivec;
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
2952 #endif
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2953 return BlitRGBtoRGBPixelAlpha;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2954 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2955 }
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
2956 #if SDL_ALTIVEC_BLITTERS
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2957 if (sf->Amask && sf->BytesPerPixel == 4 &&
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2958 !(surface->map->dst->flags & SDL_HWSURFACE)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2959 && SDL_HasAltiVec())
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2960 return Blit32to32PixelAlphaAltivec;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2961 else
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
2962 #endif
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2963 return BlitNtoNPixelAlpha;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2964
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2965 case 3:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2966 default:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2967 return BlitNtoNPixelAlpha;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2968 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2969 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2970 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2971
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
2972 /* vi: set ts=4 sw=4 expandtab: */