annotate src/video/SDL_blit_A.c @ 4093:7ea10b80eda3 SDL-1.2

Fixed bugs #471 and #480
author Sam Lantinga <slouken@libsdl.org>
date Tue, 21 Aug 2007 06:52:33 +0000
parents 5fbd763b1c88
children a1b03ba2fcd0
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 BlitNto1SurfaceAlpha(SDL_BlitInfo *info)
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66 {
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67 int width = info->d_width;
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68 int height = info->d_height;
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69 Uint8 *src = info->s_pixels;
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70 int srcskip = info->s_skip;
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71 Uint8 *dst = info->d_pixels;
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72 int dstskip = info->d_skip;
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73 Uint8 *palmap = info->table;
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74 SDL_PixelFormat *srcfmt = info->src;
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75 SDL_PixelFormat *dstfmt = info->dst;
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76 int srcbpp = srcfmt->BytesPerPixel;
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77
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78 const unsigned A = srcfmt->alpha;
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79
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80 while ( height-- ) {
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81 DUFFS_LOOP4(
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82 {
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83 Uint32 Pixel;
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84 unsigned sR;
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85 unsigned sG;
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86 unsigned sB;
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87 unsigned dR;
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88 unsigned dG;
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89 unsigned dB;
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90 DISEMBLE_RGB(src, srcbpp, srcfmt, Pixel, sR, sG, sB);
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91 dR = dstfmt->palette->colors[*dst].r;
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92 dG = dstfmt->palette->colors[*dst].g;
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93 dB = dstfmt->palette->colors[*dst].b;
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94 ALPHA_BLEND(sR, sG, sB, A, dR, dG, dB);
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95 dR &= 0xff;
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96 dG &= 0xff;
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97 dB &= 0xff;
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98 /* Pack RGB into 8bit pixel */
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99 if ( palmap == NULL ) {
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100 *dst =((dR>>5)<<(3+2))|
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101 ((dG>>5)<<(2))|
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102 ((dB>>6)<<(0));
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103 } else {
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104 *dst = palmap[((dR>>5)<<(3+2))|
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105 ((dG>>5)<<(2)) |
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106 ((dB>>6)<<(0))];
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107 }
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108 dst++;
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109 src += srcbpp;
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110 },
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111 width);
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112 src += srcskip;
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113 dst += dstskip;
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114 }
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115 }
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116
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117 /* N->1 blending with pixel alpha */
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118 static void BlitNto1PixelAlpha(SDL_BlitInfo *info)
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119 {
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120 int width = info->d_width;
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121 int height = info->d_height;
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122 Uint8 *src = info->s_pixels;
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123 int srcskip = info->s_skip;
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124 Uint8 *dst = info->d_pixels;
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125 int dstskip = info->d_skip;
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126 Uint8 *palmap = info->table;
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127 SDL_PixelFormat *srcfmt = info->src;
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128 SDL_PixelFormat *dstfmt = info->dst;
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129 int srcbpp = srcfmt->BytesPerPixel;
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130
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131 /* FIXME: fix alpha bit field expansion here too? */
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132 while ( height-- ) {
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133 DUFFS_LOOP4(
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134 {
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135 Uint32 Pixel;
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136 unsigned sR;
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137 unsigned sG;
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138 unsigned sB;
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139 unsigned sA;
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140 unsigned dR;
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141 unsigned dG;
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142 unsigned dB;
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143 DISEMBLE_RGBA(src,srcbpp,srcfmt,Pixel,sR,sG,sB,sA);
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144 dR = dstfmt->palette->colors[*dst].r;
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145 dG = dstfmt->palette->colors[*dst].g;
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146 dB = dstfmt->palette->colors[*dst].b;
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147 ALPHA_BLEND(sR, sG, sB, sA, dR, dG, dB);
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148 dR &= 0xff;
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149 dG &= 0xff;
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150 dB &= 0xff;
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151 /* Pack RGB into 8bit pixel */
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152 if ( palmap == NULL ) {
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153 *dst =((dR>>5)<<(3+2))|
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154 ((dG>>5)<<(2))|
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155 ((dB>>6)<<(0));
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156 } else {
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157 *dst = palmap[((dR>>5)<<(3+2))|
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158 ((dG>>5)<<(2)) |
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159 ((dB>>6)<<(0)) ];
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160 }
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161 dst++;
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162 src += srcbpp;
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163 },
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164 width);
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165 src += srcskip;
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166 dst += dstskip;
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167 }
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168 }
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169
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170 /* colorkeyed N->1 blending with per-surface alpha */
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171 static void BlitNto1SurfaceAlphaKey(SDL_BlitInfo *info)
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172 {
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173 int width = info->d_width;
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174 int height = info->d_height;
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175 Uint8 *src = info->s_pixels;
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176 int srcskip = info->s_skip;
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177 Uint8 *dst = info->d_pixels;
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178 int dstskip = info->d_skip;
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179 Uint8 *palmap = info->table;
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180 SDL_PixelFormat *srcfmt = info->src;
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181 SDL_PixelFormat *dstfmt = info->dst;
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182 int srcbpp = srcfmt->BytesPerPixel;
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183 Uint32 ckey = srcfmt->colorkey;
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184
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185 const int A = srcfmt->alpha;
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186
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187 while ( height-- ) {
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188 DUFFS_LOOP(
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189 {
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190 Uint32 Pixel;
0
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191 unsigned sR;
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192 unsigned sG;
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193 unsigned sB;
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194 unsigned dR;
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195 unsigned dG;
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196 unsigned dB;
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197 DISEMBLE_RGB(src, srcbpp, srcfmt, Pixel, sR, sG, sB);
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198 if ( Pixel != ckey ) {
0
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199 dR = dstfmt->palette->colors[*dst].r;
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200 dG = dstfmt->palette->colors[*dst].g;
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201 dB = dstfmt->palette->colors[*dst].b;
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202 ALPHA_BLEND(sR, sG, sB, A, dR, dG, dB);
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203 dR &= 0xff;
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204 dG &= 0xff;
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205 dB &= 0xff;
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206 /* Pack RGB into 8bit pixel */
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207 if ( palmap == NULL ) {
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208 *dst =((dR>>5)<<(3+2))|
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209 ((dG>>5)<<(2)) |
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210 ((dB>>6)<<(0));
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211 } else {
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212 *dst = palmap[((dR>>5)<<(3+2))|
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213 ((dG>>5)<<(2)) |
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214 ((dB>>6)<<(0)) ];
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215 }
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216 }
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217 dst++;
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218 src += srcbpp;
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219 },
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220 width);
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221 src += srcskip;
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222 dst += dstskip;
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223 }
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224 }
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225
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226 #if GCC_ASMBLIT
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227 /* fast RGB888->(A)RGB888 blending with surface alpha=128 special case */
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228 static void BlitRGBtoRGBSurfaceAlpha128MMX(SDL_BlitInfo *info)
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229 {
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230 int width = info->d_width;
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231 int height = info->d_height;
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232 Uint32 *srcp = (Uint32 *)info->s_pixels;
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233 int srcskip = info->s_skip >> 2;
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234 Uint32 *dstp = (Uint32 *)info->d_pixels;
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235 int dstskip = info->d_skip >> 2;
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236 Uint32 dalpha = info->dst->Amask;
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237 Uint8 load[8];
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238
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239 *(Uint64 *)load = 0x00fefefe00fefefeULL;/* alpha128 mask */
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240 movq_m2r(*load, mm4); /* alpha128 mask -> mm4 */
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241 *(Uint64 *)load = 0x0001010100010101ULL;/* !alpha128 mask */
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242 movq_m2r(*load, mm3); /* !alpha128 mask -> mm3 */
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243 movd_m2r(dalpha, mm7); /* dst alpha mask */
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244 punpckldq_r2r(mm7, mm7); /* dst alpha mask | dst alpha mask -> mm7 */
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245 while(height--) {
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246 DUFFS_LOOP_DOUBLE2(
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247 {
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248 Uint32 s = *srcp++;
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249 Uint32 d = *dstp;
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250 *dstp++ = ((((s & 0x00fefefe) + (d & 0x00fefefe)) >> 1)
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251 + (s & d & 0x00010101)) | dalpha;
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252 },{
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253 movq_m2r((*dstp), mm2);/* 2 x dst -> mm2(ARGBARGB) */
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254 movq_r2r(mm2, mm6); /* 2 x dst -> mm6(ARGBARGB) */
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255
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256 movq_m2r((*srcp), mm1);/* 2 x src -> mm1(ARGBARGB) */
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257 movq_r2r(mm1, mm5); /* 2 x src -> mm5(ARGBARGB) */
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258
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259 pand_r2r(mm4, mm6); /* dst & mask -> mm6 */
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260 pand_r2r(mm4, mm5); /* src & mask -> mm5 */
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261 paddd_r2r(mm6, mm5); /* mm6 + mm5 -> mm5 */
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262 pand_r2r(mm1, mm2); /* src & dst -> mm2 */
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263 psrld_i2r(1, mm5); /* mm5 >> 1 -> mm5 */
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264 pand_r2r(mm3, mm2); /* mm2 & !mask -> mm2 */
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265 paddd_r2r(mm5, mm2); /* mm5 + mm2 -> mm2 */
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266
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267 por_r2r(mm7, mm2); /* mm7(full alpha) | mm2 -> mm2 */
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268 movq_r2m(mm2, (*dstp));/* mm2 -> 2 x dst pixels */
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269 dstp += 2;
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270 srcp += 2;
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271 }, width);
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272 srcp += srcskip;
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273 dstp += dstskip;
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274 }
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275 emms();
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276 }
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277
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278 /* fast RGB888->(A)RGB888 blending with surface alpha */
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279 static void BlitRGBtoRGBSurfaceAlphaMMX(SDL_BlitInfo *info)
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280 {
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281 SDL_PixelFormat* df = info->dst;
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282 unsigned alpha = info->src->alpha;
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283
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284 if (alpha == 128 && (df->Rmask | df->Gmask | df->Bmask) == 0x00FFFFFF) {
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285 /* only call a128 version when R,G,B occupy lower bits */
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286 BlitRGBtoRGBSurfaceAlpha128MMX(info);
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287 } else {
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288 int width = info->d_width;
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289 int height = info->d_height;
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290 Uint32 *srcp = (Uint32 *)info->s_pixels;
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291 int srcskip = info->s_skip >> 2;
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292 Uint32 *dstp = (Uint32 *)info->d_pixels;
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293 int dstskip = info->d_skip >> 2;
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294
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295 pxor_r2r(mm5, mm5); /* 0 -> mm5 */
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296 /* form the alpha mult */
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297 movd_m2r(alpha, mm4); /* 0000000A -> mm4 */
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298 punpcklwd_r2r(mm4, mm4); /* 00000A0A -> mm4 */
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299 punpckldq_r2r(mm4, mm4); /* 0A0A0A0A -> mm4 */
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300 alpha = (0xff << df->Rshift) | (0xff << df->Gshift) | (0xff << df->Bshift);
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301 movd_m2r(alpha, mm0); /* 00000FFF -> mm0 */
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diff changeset
302 punpcklbw_r2r(mm0, mm0); /* 00FFFFFF -> mm0 */
a8bf1aa21020 Fixed bug #15
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parents: 1487
diff changeset
303 pand_r2r(mm0, mm4); /* 0A0A0A0A -> mm4, minus 1 chan */
a8bf1aa21020 Fixed bug #15
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parents: 1487
diff changeset
304 /* at this point mm4 can be 000A0A0A or 0A0A0A00 or another combo */
a8bf1aa21020 Fixed bug #15
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parents: 1487
diff changeset
305 movd_m2r(df->Amask, mm7); /* dst alpha mask */
a8bf1aa21020 Fixed bug #15
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parents: 1487
diff changeset
306 punpckldq_r2r(mm7, mm7); /* dst alpha mask | dst alpha mask -> mm7 */
689
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diff changeset
307
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diff changeset
308 while(height--) {
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diff changeset
309 DUFFS_LOOP_DOUBLE2({
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diff changeset
310 /* One Pixel Blend */
1542
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diff changeset
311 movd_m2r((*srcp), mm1);/* src(ARGB) -> mm1 (0000ARGB)*/
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
312 movd_m2r((*dstp), mm2);/* dst(ARGB) -> mm2 (0000ARGB)*/
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
313 punpcklbw_r2r(mm5, mm1); /* 0A0R0G0B -> mm1(src) */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
314 punpcklbw_r2r(mm5, mm2); /* 0A0R0G0B -> mm2(dst) */
a8bf1aa21020 Fixed bug #15
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parents: 1487
diff changeset
315
a8bf1aa21020 Fixed bug #15
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parents: 1487
diff changeset
316 psubw_r2r(mm2, mm1);/* src - dst -> mm1 */
a8bf1aa21020 Fixed bug #15
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parents: 1487
diff changeset
317 pmullw_r2r(mm4, mm1); /* mm1 * alpha -> mm1 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
318 psrlw_i2r(8, mm1); /* mm1 >> 8 -> mm1 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
319 paddb_r2r(mm1, mm2); /* mm1 + mm2(dst) -> mm2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
320
a8bf1aa21020 Fixed bug #15
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parents: 1487
diff changeset
321 packuswb_r2r(mm5, mm2); /* ARGBARGB -> mm2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
322 por_r2r(mm7, mm2); /* mm7(full alpha) | mm2 -> mm2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
323 movd_r2m(mm2, *dstp);/* mm2 -> pixel */
689
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diff changeset
324 ++srcp;
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diff changeset
325 ++dstp;
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diff changeset
326 },{
1542
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diff changeset
327 /* Two Pixels Blend */
689
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diff changeset
328 movq_m2r((*srcp), mm0);/* 2 x src -> mm0(ARGBARGB)*/
1542
a8bf1aa21020 Fixed bug #15
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diff changeset
329 movq_m2r((*dstp), mm2);/* 2 x dst -> mm2(ARGBARGB) */
a8bf1aa21020 Fixed bug #15
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parents: 1487
diff changeset
330 movq_r2r(mm0, mm1); /* 2 x src -> mm1(ARGBARGB) */
a8bf1aa21020 Fixed bug #15
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parents: 1487
diff changeset
331 movq_r2r(mm2, mm6); /* 2 x dst -> mm6(ARGBARGB) */
a8bf1aa21020 Fixed bug #15
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parents: 1487
diff changeset
332
a8bf1aa21020 Fixed bug #15
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parents: 1487
diff changeset
333 punpcklbw_r2r(mm5, mm0); /* low - 0A0R0G0B -> mm0(src1) */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
334 punpckhbw_r2r(mm5, mm1); /* high - 0A0R0G0B -> mm1(src2) */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
335 punpcklbw_r2r(mm5, mm2); /* low - 0A0R0G0B -> mm2(dst1) */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
336 punpckhbw_r2r(mm5, mm6); /* high - 0A0R0G0B -> mm6(dst2) */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
337
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
338 psubw_r2r(mm2, mm0);/* src1 - dst1 -> mm0 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
339 pmullw_r2r(mm4, mm0); /* mm0 * alpha -> mm0 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
340 psrlw_i2r(8, mm0); /* mm0 >> 8 -> mm1 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
341 paddb_r2r(mm0, mm2); /* mm0 + mm2(dst1) -> mm2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
342
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
343 psubw_r2r(mm6, mm1);/* src2 - dst2 -> mm1 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
344 pmullw_r2r(mm4, mm1); /* mm1 * alpha -> mm1 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
345 psrlw_i2r(8, mm1); /* mm1 >> 8 -> mm1 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
346 paddb_r2r(mm1, mm6); /* mm1 + mm6(dst2) -> mm6 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
347
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
348 packuswb_r2r(mm6, mm2); /* ARGBARGB -> mm2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
349 por_r2r(mm7, mm2); /* mm7(dst alpha) | mm2 -> mm2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
350
a8bf1aa21020 Fixed bug #15
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parents: 1487
diff changeset
351 movq_r2m(mm2, *dstp);/* mm2 -> 2 x pixel */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
352
a8bf1aa21020 Fixed bug #15
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parents: 1487
diff changeset
353 srcp += 2;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
354 dstp += 2;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
355 }, width);
689
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diff changeset
356 srcp += srcskip;
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diff changeset
357 dstp += dstskip;
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diff changeset
358 }
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diff changeset
359 emms();
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parents: 297
diff changeset
360 }
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parents: 297
diff changeset
361 }
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parents: 297
diff changeset
362
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diff changeset
363 /* fast ARGB888->(A)RGB888 blending with pixel alpha */
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diff changeset
364 static void BlitRGBtoRGBPixelAlphaMMX(SDL_BlitInfo *info)
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diff changeset
365 {
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diff changeset
366 int width = info->d_width;
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diff changeset
367 int height = info->d_height;
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diff changeset
368 Uint32 *srcp = (Uint32 *)info->s_pixels;
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diff changeset
369 int srcskip = info->s_skip >> 2;
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diff changeset
370 Uint32 *dstp = (Uint32 *)info->d_pixels;
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diff changeset
371 int dstskip = info->d_skip >> 2;
1542
a8bf1aa21020 Fixed bug #15
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diff changeset
372 SDL_PixelFormat* sf = info->src;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
373 Uint32 amask = sf->Amask;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
374
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
375 pxor_r2r(mm6, mm6); /* 0 -> mm6 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
376 /* form multiplication mask */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
377 movd_m2r(sf->Amask, mm7); /* 0000F000 -> mm7 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
378 punpcklbw_r2r(mm7, mm7); /* FF000000 -> mm7 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
379 pcmpeqb_r2r(mm0, mm0); /* FFFFFFFF -> mm0 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
380 movq_r2r(mm0, mm3); /* FFFFFFFF -> mm3 (for later) */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
381 pxor_r2r(mm0, mm7); /* 00FFFFFF -> mm7 (mult mask) */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
382 /* form channel masks */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
383 movq_r2r(mm7, mm0); /* 00FFFFFF -> mm0 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
384 packsswb_r2r(mm6, mm0); /* 00000FFF -> mm0 (channel mask) */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
385 packsswb_r2r(mm6, mm3); /* 0000FFFF -> mm3 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
386 pxor_r2r(mm0, mm3); /* 0000F000 -> mm3 (~channel mask) */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
387 /* get alpha channel shift */
3931
d65b4a73c991 BlitRGBtoRGBPixelAlphaMMX() is putting the wrong value into a register.
Ryan C. Gordon <icculus@icculus.org>
parents: 3910
diff changeset
388 __asm__ __volatile__ (
d65b4a73c991 BlitRGBtoRGBPixelAlphaMMX() is putting the wrong value into a register.
Ryan C. Gordon <icculus@icculus.org>
parents: 3910
diff changeset
389 "movd %0, %%mm5"
d65b4a73c991 BlitRGBtoRGBPixelAlphaMMX() is putting the wrong value into a register.
Ryan C. Gordon <icculus@icculus.org>
parents: 3910
diff changeset
390 : : "rm" ((Uint32) sf->Ashift) ); /* Ashift -> mm5 */
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
391
689
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diff changeset
392 while(height--) {
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parents: 297
diff changeset
393 DUFFS_LOOP4({
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
394 Uint32 alpha = *srcp & amask;
689
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parents: 297
diff changeset
395 /* FIXME: Here we special-case opaque alpha since the
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
396 compositioning used (>>8 instead of /255) doesn't handle
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
397 it correctly. Also special-case alpha=0 for speed?
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
398 Benchmark this! */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
399 if(alpha == 0) {
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
400 /* do nothing */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
401 } else if(alpha == amask) {
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
402 /* opaque alpha -- copy RGB, keep dst alpha */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
403 /* using MMX here to free up regular registers for other things */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
404 movd_m2r((*srcp), mm1);/* src(ARGB) -> mm1 (0000ARGB)*/
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
405 movd_m2r((*dstp), mm2);/* dst(ARGB) -> mm2 (0000ARGB)*/
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
406 pand_r2r(mm0, mm1); /* src & chanmask -> mm1 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
407 pand_r2r(mm3, mm2); /* dst & ~chanmask -> mm2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
408 por_r2r(mm1, mm2); /* src | dst -> mm2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
409 movd_r2m(mm2, (*dstp)); /* mm2 -> dst */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
410 } else {
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
411 movd_m2r((*srcp), mm1);/* src(ARGB) -> mm1 (0000ARGB)*/
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
412 punpcklbw_r2r(mm6, mm1); /* 0A0R0G0B -> mm1 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
413
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
414 movd_m2r((*dstp), mm2);/* dst(ARGB) -> mm2 (0000ARGB)*/
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
415 punpcklbw_r2r(mm6, mm2); /* 0A0R0G0B -> mm2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
416
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
417 __asm__ __volatile__ (
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
418 "movd %0, %%mm4"
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
419 : : "r" (alpha) ); /* 0000A000 -> mm4 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
420 psrld_r2r(mm5, mm4); /* mm4 >> mm5 -> mm4 (0000000A) */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
421 punpcklwd_r2r(mm4, mm4); /* 00000A0A -> mm4 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
422 punpcklwd_r2r(mm4, mm4); /* 0A0A0A0A -> mm4 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
423 pand_r2r(mm7, mm4); /* 000A0A0A -> mm4, preserve dst alpha on add */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
424
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
425 /* blend */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
426 psubw_r2r(mm2, mm1);/* src - dst -> mm1 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
427 pmullw_r2r(mm4, mm1); /* mm1 * alpha -> mm1 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
428 psrlw_i2r(8, mm1); /* mm1 >> 8 -> mm1(000R0G0B) */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
429 paddb_r2r(mm1, mm2); /* mm1 + mm2(dst) -> mm2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
430
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
431 packuswb_r2r(mm6, mm2); /* 0000ARGB -> mm2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
432 movd_r2m(mm2, *dstp);/* mm2 -> dst */
689
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parents: 297
diff changeset
433 }
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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parents: 297
diff changeset
434 ++srcp;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
435 ++dstp;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
436 }, width);
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
437 srcp += srcskip;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
438 dstp += dstskip;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
439 }
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
440 emms();
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
441 }
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
442 /* End GCC_ASMBLIT */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
443
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
444 #elif MSVC_ASMBLIT
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
445 /* fast RGB888->(A)RGB888 blending with surface alpha=128 special case */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
446 static void BlitRGBtoRGBSurfaceAlpha128MMX(SDL_BlitInfo *info)
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
447 {
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
448 int width = info->d_width;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
449 int height = info->d_height;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
450 Uint32 *srcp = (Uint32 *)info->s_pixels;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
451 int srcskip = info->s_skip >> 2;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
452 Uint32 *dstp = (Uint32 *)info->d_pixels;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
453 int dstskip = info->d_skip >> 2;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
454 Uint32 dalpha = info->dst->Amask;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
455
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
456 __m64 src1, src2, dst1, dst2, lmask, hmask, dsta;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
457
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
458 hmask = _mm_set_pi32(0x00fefefe, 0x00fefefe); /* alpha128 mask -> hmask */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
459 lmask = _mm_set_pi32(0x00010101, 0x00010101); /* !alpha128 mask -> lmask */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
460 dsta = _mm_set_pi32(dalpha, dalpha); /* dst alpha mask -> dsta */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
461
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
462 while (height--) {
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
463 int n = width;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
464 if ( n & 1 ) {
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
465 Uint32 s = *srcp++;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
466 Uint32 d = *dstp;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
467 *dstp++ = ((((s & 0x00fefefe) + (d & 0x00fefefe)) >> 1)
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
468 + (s & d & 0x00010101)) | dalpha;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
469 n--;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
470 }
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
471
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
472 for (n >>= 1; n > 0; --n) {
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
473 dst1 = *(__m64*)dstp; /* 2 x dst -> dst1(ARGBARGB) */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
474 dst2 = dst1; /* 2 x dst -> dst2(ARGBARGB) */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
475
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
476 src1 = *(__m64*)srcp; /* 2 x src -> src1(ARGBARGB) */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
477 src2 = src1; /* 2 x src -> src2(ARGBARGB) */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
478
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
479 dst2 = _mm_and_si64(dst2, hmask); /* dst & mask -> dst2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
480 src2 = _mm_and_si64(src2, hmask); /* src & mask -> src2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
481 src2 = _mm_add_pi32(src2, dst2); /* dst2 + src2 -> src2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
482 src2 = _mm_srli_pi32(src2, 1); /* src2 >> 1 -> src2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
483
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
484 dst1 = _mm_and_si64(dst1, src1); /* src & dst -> dst1 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
485 dst1 = _mm_and_si64(dst1, lmask); /* dst1 & !mask -> dst1 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
486 dst1 = _mm_add_pi32(dst1, src2); /* src2 + dst1 -> dst1 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
487 dst1 = _mm_or_si64(dst1, dsta); /* dsta(full alpha) | dst1 -> dst1 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
488
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
489 *(__m64*)dstp = dst1; /* dst1 -> 2 x dst pixels */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
490 dstp += 2;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
491 srcp += 2;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
492 }
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
493
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
494 srcp += srcskip;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
495 dstp += dstskip;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
496 }
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
497 _mm_empty();
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
498 }
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
499
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
500 /* fast RGB888->(A)RGB888 blending with surface alpha */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
501 static void BlitRGBtoRGBSurfaceAlphaMMX(SDL_BlitInfo *info)
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
502 {
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
503 SDL_PixelFormat* df = info->dst;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
504 Uint32 chanmask = df->Rmask | df->Gmask | df->Bmask;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
505 unsigned alpha = info->src->alpha;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
506
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
507 if (alpha == 128 && (df->Rmask | df->Gmask | df->Bmask) == 0x00FFFFFF) {
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
508 /* only call a128 version when R,G,B occupy lower bits */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
509 BlitRGBtoRGBSurfaceAlpha128MMX(info);
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
510 } else {
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
511 int width = info->d_width;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
512 int height = info->d_height;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
513 Uint32 *srcp = (Uint32 *)info->s_pixels;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
514 int srcskip = info->s_skip >> 2;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
515 Uint32 *dstp = (Uint32 *)info->d_pixels;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
516 int dstskip = info->d_skip >> 2;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
517 Uint32 dalpha = df->Amask;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
518 Uint32 amult;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
519
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
520 __m64 src1, src2, dst1, dst2, mm_alpha, mm_zero, dsta;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
521
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
522 mm_zero = _mm_setzero_si64(); /* 0 -> mm_zero */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
523 /* form the alpha mult */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
524 amult = alpha | (alpha << 8);
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
525 amult = amult | (amult << 16);
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
526 chanmask = (0xff << df->Rshift) | (0xff << df->Gshift) | (0xff << df->Bshift);
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
527 mm_alpha = _mm_set_pi32(0, amult & chanmask); /* 0000AAAA -> mm_alpha, minus 1 chan */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
528 mm_alpha = _mm_unpacklo_pi8(mm_alpha, mm_zero); /* 0A0A0A0A -> mm_alpha, minus 1 chan */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
529 /* at this point mm_alpha can be 000A0A0A or 0A0A0A00 or another combo */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
530 dsta = _mm_set_pi32(dalpha, dalpha); /* dst alpha mask -> dsta */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
531
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
532 while (height--) {
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
533 int n = width;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
534 if (n & 1) {
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
535 /* One Pixel Blend */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
536 src2 = _mm_cvtsi32_si64(*srcp); /* src(ARGB) -> src2 (0000ARGB)*/
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
537 src2 = _mm_unpacklo_pi8(src2, mm_zero); /* 0A0R0G0B -> src2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
538
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
539 dst1 = _mm_cvtsi32_si64(*dstp); /* dst(ARGB) -> dst1 (0000ARGB)*/
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
540 dst1 = _mm_unpacklo_pi8(dst1, mm_zero); /* 0A0R0G0B -> dst1 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
541
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
542 src2 = _mm_sub_pi16(src2, dst1); /* src2 - dst2 -> src2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
543 src2 = _mm_mullo_pi16(src2, mm_alpha); /* src2 * alpha -> src2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
544 src2 = _mm_srli_pi16(src2, 8); /* src2 >> 8 -> src2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
545 dst1 = _mm_add_pi8(src2, dst1); /* src2 + dst1 -> dst1 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
546
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
547 dst1 = _mm_packs_pu16(dst1, mm_zero); /* 0000ARGB -> dst1 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
548 dst1 = _mm_or_si64(dst1, dsta); /* dsta | dst1 -> dst1 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
549 *dstp = _mm_cvtsi64_si32(dst1); /* dst1 -> pixel */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
550
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
551 ++srcp;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
552 ++dstp;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
553
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
554 n--;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
555 }
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
556
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
557 for (n >>= 1; n > 0; --n) {
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
558 /* Two Pixels Blend */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
559 src1 = *(__m64*)srcp; /* 2 x src -> src1(ARGBARGB)*/
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
560 src2 = src1; /* 2 x src -> src2(ARGBARGB) */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
561 src1 = _mm_unpacklo_pi8(src1, mm_zero); /* low - 0A0R0G0B -> src1 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
562 src2 = _mm_unpackhi_pi8(src2, mm_zero); /* high - 0A0R0G0B -> src2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
563
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
564 dst1 = *(__m64*)dstp;/* 2 x dst -> dst1(ARGBARGB) */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
565 dst2 = dst1; /* 2 x dst -> dst2(ARGBARGB) */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
566 dst1 = _mm_unpacklo_pi8(dst1, mm_zero); /* low - 0A0R0G0B -> dst1 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
567 dst2 = _mm_unpackhi_pi8(dst2, mm_zero); /* high - 0A0R0G0B -> dst2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
568
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
569 src1 = _mm_sub_pi16(src1, dst1);/* src1 - dst1 -> src1 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
570 src1 = _mm_mullo_pi16(src1, mm_alpha); /* src1 * alpha -> src1 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
571 src1 = _mm_srli_pi16(src1, 8); /* src1 >> 8 -> src1 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
572 dst1 = _mm_add_pi8(src1, dst1); /* src1 + dst1(dst1) -> dst1 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
573
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
574 src2 = _mm_sub_pi16(src2, dst2);/* src2 - dst2 -> src2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
575 src2 = _mm_mullo_pi16(src2, mm_alpha); /* src2 * alpha -> src2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
576 src2 = _mm_srli_pi16(src2, 8); /* src2 >> 8 -> src2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
577 dst2 = _mm_add_pi8(src2, dst2); /* src2 + dst2(dst2) -> dst2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
578
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
579 dst1 = _mm_packs_pu16(dst1, dst2); /* 0A0R0G0B(res1), 0A0R0G0B(res2) -> dst1(ARGBARGB) */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
580 dst1 = _mm_or_si64(dst1, dsta); /* dsta | dst1 -> dst1 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
581
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
582 *(__m64*)dstp = dst1; /* dst1 -> 2 x pixel */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
583
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
584 srcp += 2;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
585 dstp += 2;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
586 }
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
587 srcp += srcskip;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
588 dstp += dstskip;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
589 }
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
590 _mm_empty();
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
591 }
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
592 }
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
593
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
594 /* fast ARGB888->(A)RGB888 blending with pixel alpha */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
595 static void BlitRGBtoRGBPixelAlphaMMX(SDL_BlitInfo *info)
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
596 {
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
597 int width = info->d_width;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
598 int height = info->d_height;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
599 Uint32 *srcp = (Uint32 *)info->s_pixels;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
600 int srcskip = info->s_skip >> 2;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
601 Uint32 *dstp = (Uint32 *)info->d_pixels;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
602 int dstskip = info->d_skip >> 2;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
603 SDL_PixelFormat* sf = info->src;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
604 Uint32 chanmask = sf->Rmask | sf->Gmask | sf->Bmask;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
605 Uint32 amask = sf->Amask;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
606 Uint32 ashift = sf->Ashift;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
607 Uint64 multmask;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
608
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
609 __m64 src1, dst1, mm_alpha, mm_zero, dmask;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
610
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
611 mm_zero = _mm_setzero_si64(); /* 0 -> mm_zero */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
612 multmask = ~(0xFFFFi64 << (ashift * 2));
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
613 dmask = *(__m64*) &multmask; /* dst alpha mask -> dmask */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
614
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
615 while(height--) {
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
616 DUFFS_LOOP4({
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
617 Uint32 alpha = *srcp & amask;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
618 if (alpha == 0) {
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
619 /* do nothing */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
620 } else if (alpha == amask) {
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
621 /* opaque alpha -- copy RGB, keep dst alpha */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
622 *dstp = (*srcp & chanmask) | (*dstp & ~chanmask);
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
623 } else {
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
624 src1 = _mm_cvtsi32_si64(*srcp); /* src(ARGB) -> src1 (0000ARGB)*/
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
625 src1 = _mm_unpacklo_pi8(src1, mm_zero); /* 0A0R0G0B -> src1 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
626
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
627 dst1 = _mm_cvtsi32_si64(*dstp); /* dst(ARGB) -> dst1 (0000ARGB)*/
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
628 dst1 = _mm_unpacklo_pi8(dst1, mm_zero); /* 0A0R0G0B -> dst1 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
629
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
630 mm_alpha = _mm_cvtsi32_si64(alpha); /* alpha -> mm_alpha (0000000A) */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
631 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
632 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
633 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
634 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
635
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
636 /* blend */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
637 src1 = _mm_sub_pi16(src1, dst1);/* src1 - dst1 -> src1 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
638 src1 = _mm_mullo_pi16(src1, mm_alpha); /* (src1 - dst1) * alpha -> src1 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
639 src1 = _mm_srli_pi16(src1, 8); /* src1 >> 8 -> src1(000R0G0B) */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
640 dst1 = _mm_add_pi8(src1, dst1); /* src1 + dst1 -> dst1(0A0R0G0B) */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
641 dst1 = _mm_packs_pu16(dst1, mm_zero); /* 0000ARGB -> dst1 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
642
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
643 *dstp = _mm_cvtsi64_si32(dst1); /* dst1 -> pixel */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
644 }
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
645 ++srcp;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
646 ++dstp;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
647 }, width);
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
648 srcp += srcskip;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
649 dstp += dstskip;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
650 }
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
651 _mm_empty();
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
652 }
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
653 /* End MSVC_ASMBLIT */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
654
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
655 #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
656
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
657 #if SDL_ALTIVEC_BLITTERS
1795
398ac0f88e4d Fixed bug #220
Sam Lantinga <slouken@libsdl.org>
parents: 1617
diff changeset
658 #if __MWERKS__
398ac0f88e4d Fixed bug #220
Sam Lantinga <slouken@libsdl.org>
parents: 1617
diff changeset
659 #pragma altivec_model on
398ac0f88e4d Fixed bug #220
Sam Lantinga <slouken@libsdl.org>
parents: 1617
diff changeset
660 #endif
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
661 #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
662 #include <altivec.h>
1175
867f521591e5 Fixed Altivec support on Mac OS X.
Ryan C. Gordon <icculus@icculus.org>
parents: 1162
diff changeset
663 #endif
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
664 #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
665
1402
d910939febfa Use consistent identifiers for the various platforms we support.
Sam Lantinga <slouken@libsdl.org>
parents: 1361
diff changeset
666 #if (defined(__MACOSX__) && (__GNUC__ < 4))
1162
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents: 1047
diff changeset
667 #define VECUINT8_LITERAL(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p) \
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents: 1047
diff changeset
668 (vector unsigned char) ( a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p )
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents: 1047
diff changeset
669 #define VECUINT16_LITERAL(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
670 (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
671 #else
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents: 1047
diff changeset
672 #define VECUINT8_LITERAL(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p) \
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents: 1047
diff changeset
673 (vector unsigned char) { a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p }
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents: 1047
diff changeset
674 #define VECUINT16_LITERAL(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
675 (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
676 #endif
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents: 1047
diff changeset
677
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
678 #define UNALIGNED_PTR(x) (((size_t) x) & 0x0000000F)
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
679 #define VECPRINT(msg, v) do { \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
680 vector unsigned int tmpvec = (vector unsigned int)(v); \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
681 unsigned int *vp = (unsigned int *)&tmpvec; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
682 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
683 } while (0)
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
684
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
685 /* 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
686 (vector unsigned char)(
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
687 0x00, 0x10, 0x02, 0x12,
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
688 0x04, 0x14, 0x06, 0x16,
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
689 0x08, 0x18, 0x0A, 0x1A,
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
690 0x0C, 0x1C, 0x0E, 0x1E );
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
691 */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
692 #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
693 #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
694 #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
695 #define VEC_ALIGNER(src) ((UNALIGNED_PTR(src)) \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
696 ? vec_lvsl(0, src) \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
697 : vec_add(vec_lvsl(8, src), vec_splat_u8(8)))
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
698
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
699
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
700 #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
701 /* vtemp1 contains source AAGGAAGGAAGGAAGG */ \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
702 vector unsigned short vtemp1 = vec_mule(vs, valpha); \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
703 /* vtemp2 contains source RRBBRRBBRRBBRRBB */ \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
704 vector unsigned short vtemp2 = vec_mulo(vs, valpha); \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
705 /* valpha2 is 255-alpha */ \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
706 vector unsigned char valpha2 = vec_nor(valpha, valpha); \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
707 /* vtemp3 contains dest AAGGAAGGAAGGAAGG */ \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
708 vector unsigned short vtemp3 = vec_mule(vd, valpha2); \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
709 /* vtemp4 contains dest RRBBRRBBRRBBRRBB */ \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
710 vector unsigned short vtemp4 = vec_mulo(vd, valpha2); \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
711 /* add source and dest */ \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
712 vtemp1 = vec_add(vtemp1, vtemp3); \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
713 vtemp2 = vec_add(vtemp2, vtemp4); \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
714 /* vtemp1 = (vtemp1 + 1) + ((vtemp1 + 1) >> 8) */ \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
715 vtemp1 = vec_add(vtemp1, v1_16); \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
716 vtemp3 = vec_sr(vtemp1, v8_16); \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
717 vtemp1 = vec_add(vtemp1, vtemp3); \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
718 /* vtemp2 = (vtemp2 + 1) + ((vtemp2 + 1) >> 8) */ \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
719 vtemp2 = vec_add(vtemp2, v1_16); \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
720 vtemp4 = vec_sr(vtemp2, v8_16); \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
721 vtemp2 = vec_add(vtemp2, vtemp4); \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
722 /* (>>8) and get ARGBARGBARGBARGB */ \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
723 vd = (vector unsigned char)vec_perm(vtemp1, vtemp2, mergePermute); \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
724 } while (0)
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
725
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
726 /* Calculate the permute vector used for 32->32 swizzling */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
727 static vector unsigned char calc_swizzle32(const SDL_PixelFormat *srcfmt,
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
728 const SDL_PixelFormat *dstfmt)
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
729 {
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
730 /*
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
731 * 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
732 * 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
733 * 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
734 */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
735 /* ARGB */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
736 const static struct SDL_PixelFormat default_pixel_format = {
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
737 NULL, 0, 0,
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
738 0, 0, 0, 0,
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
739 16, 8, 0, 24,
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
740 0x00FF0000, 0x0000FF00, 0x000000FF, 0xFF000000,
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
741 0, 0};
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
742 if (!srcfmt) {
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
743 srcfmt = &default_pixel_format;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
744 }
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
745 if (!dstfmt) {
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
746 dstfmt = &default_pixel_format;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
747 }
1487
dc6b59e925a2 Cleaning up warnings on MacOS X
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
748 const vector unsigned char plus = VECUINT8_LITERAL
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
749 ( 0x00, 0x00, 0x00, 0x00,
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
750 0x04, 0x04, 0x04, 0x04,
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
751 0x08, 0x08, 0x08, 0x08,
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
752 0x0C, 0x0C, 0x0C, 0x0C );
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
753 vector unsigned char vswiz;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
754 vector unsigned int srcvec;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
755 #define RESHIFT(X) (3 - ((X) >> 3))
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
756 Uint32 rmask = RESHIFT(srcfmt->Rshift) << (dstfmt->Rshift);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
757 Uint32 gmask = RESHIFT(srcfmt->Gshift) << (dstfmt->Gshift);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
758 Uint32 bmask = RESHIFT(srcfmt->Bshift) << (dstfmt->Bshift);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
759 Uint32 amask;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
760 /* 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
761 if (dstfmt->Amask) {
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
762 amask = ((srcfmt->Amask) ? RESHIFT(srcfmt->Ashift) : 0x10) << (dstfmt->Ashift);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
763 } else {
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
764 amask = 0x10101010 & ((dstfmt->Rmask | dstfmt->Gmask | dstfmt->Bmask) ^ 0xFFFFFFFF);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
765 }
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
766 #undef RESHIFT
1162
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents: 1047
diff changeset
767 ((unsigned int *)(char*)&srcvec)[0] = (rmask | gmask | bmask | amask);
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
768 vswiz = vec_add(plus, (vector unsigned char)vec_splat(srcvec, 0));
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
769 return(vswiz);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
770 }
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
771
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
772 static void Blit32to565PixelAlphaAltivec(SDL_BlitInfo *info)
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
773 {
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
774 int height = info->d_height;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
775 Uint8 *src = (Uint8 *)info->s_pixels;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
776 int srcskip = info->s_skip;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
777 Uint8 *dst = (Uint8 *)info->d_pixels;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
778 int dstskip = info->d_skip;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
779 SDL_PixelFormat *srcfmt = info->src;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
780
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
781 vector unsigned char v0 = vec_splat_u8(0);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
782 vector unsigned short v8_16 = vec_splat_u16(8);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
783 vector unsigned short v1_16 = vec_splat_u16(1);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
784 vector unsigned short v2_16 = vec_splat_u16(2);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
785 vector unsigned short v3_16 = vec_splat_u16(3);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
786 vector unsigned int v8_32 = vec_splat_u32(8);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
787 vector unsigned int v16_32 = vec_add(v8_32, v8_32);
1162
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents: 1047
diff changeset
788 vector unsigned short v3f = VECUINT16_LITERAL(
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
789 0x003f, 0x003f, 0x003f, 0x003f,
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
790 0x003f, 0x003f, 0x003f, 0x003f);
1162
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents: 1047
diff changeset
791 vector unsigned short vfc = VECUINT16_LITERAL(
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
792 0x00fc, 0x00fc, 0x00fc, 0x00fc,
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
793 0x00fc, 0x00fc, 0x00fc, 0x00fc);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
794
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
795 /*
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
796 0x10 - 0x1f is the alpha
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
797 0x00 - 0x0e evens are the red
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
798 0x01 - 0x0f odds are zero
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
799 */
1162
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents: 1047
diff changeset
800 vector unsigned char vredalpha1 = VECUINT8_LITERAL(
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
801 0x10, 0x00, 0x01, 0x01,
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
802 0x10, 0x02, 0x01, 0x01,
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
803 0x10, 0x04, 0x01, 0x01,
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
804 0x10, 0x06, 0x01, 0x01
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
805 );
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
806 vector unsigned char vredalpha2 = (vector unsigned char)(
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
807 vec_add((vector unsigned int)vredalpha1, vec_sl(v8_32, v16_32))
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 /*
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
810 0x00 - 0x0f is ARxx ARxx ARxx ARxx
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
811 0x11 - 0x0f odds are blue
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
812 */
1162
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents: 1047
diff changeset
813 vector unsigned char vblue1 = VECUINT8_LITERAL(
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
814 0x00, 0x01, 0x02, 0x11,
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
815 0x04, 0x05, 0x06, 0x13,
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
816 0x08, 0x09, 0x0a, 0x15,
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
817 0x0c, 0x0d, 0x0e, 0x17
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
818 );
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
819 vector unsigned char vblue2 = (vector unsigned char)(
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
820 vec_add((vector unsigned int)vblue1, v8_32)
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
821 );
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
822 /*
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
823 0x00 - 0x0f is ARxB ARxB ARxB ARxB
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
824 0x10 - 0x0e evens are green
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
825 */
1162
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents: 1047
diff changeset
826 vector unsigned char vgreen1 = VECUINT8_LITERAL(
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
827 0x00, 0x01, 0x10, 0x03,
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
828 0x04, 0x05, 0x12, 0x07,
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
829 0x08, 0x09, 0x14, 0x0b,
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
830 0x0c, 0x0d, 0x16, 0x0f
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
831 );
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
832 vector unsigned char vgreen2 = (vector unsigned char)(
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
833 vec_add((vector unsigned int)vgreen1, vec_sl(v8_32, v8_32))
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
834 );
1162
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents: 1047
diff changeset
835 vector unsigned char vgmerge = VECUINT8_LITERAL(
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
836 0x00, 0x02, 0x00, 0x06,
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
837 0x00, 0x0a, 0x00, 0x0e,
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
838 0x00, 0x12, 0x00, 0x16,
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
839 0x00, 0x1a, 0x00, 0x1e);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
840 vector unsigned char mergePermute = VEC_MERGE_PERMUTE();
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
841 vector unsigned char vpermute = calc_swizzle32(srcfmt, NULL);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
842 vector unsigned char valphaPermute = vec_and(vec_lvsl(0, (int *)NULL), vec_splat_u8(0xC));
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
843
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
844 vector unsigned short vf800 = (vector unsigned short)vec_splat_u8(-7);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
845 vf800 = vec_sl(vf800, vec_splat_u16(8));
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
846
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
847 while(height--) {
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
848 int extrawidth;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
849 vector unsigned char valigner;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
850 vector unsigned char vsrc;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
851 vector unsigned char voverflow;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
852 int width = info->d_width;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
853
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
854 #define ONE_PIXEL_BLEND(condition, widthvar) \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
855 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
856 Uint32 Pixel; \
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
857 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
858 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
859 if(sA) { \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
860 unsigned short dstpixel = *((unsigned short *)dst); \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
861 dR = (dstpixel >> 8) & 0xf8; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
862 dG = (dstpixel >> 3) & 0xfc; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
863 dB = (dstpixel << 3) & 0xf8; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
864 ACCURATE_ALPHA_BLEND(sR, sG, sB, sA, dR, dG, dB); \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
865 *((unsigned short *)dst) = ( \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
866 ((dR & 0xf8) << 8) | ((dG & 0xfc) << 3) | (dB >> 3) \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
867 ); \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
868 } \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
869 src += 4; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
870 dst += 2; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
871 widthvar--; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
872 }
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
873 ONE_PIXEL_BLEND((UNALIGNED_PTR(dst)) && (width), width);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
874 extrawidth = (width % 8);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
875 valigner = VEC_ALIGNER(src);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
876 vsrc = (vector unsigned char)vec_ld(0, src);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
877 width -= extrawidth;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
878 while (width) {
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
879 vector unsigned char valpha;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
880 vector unsigned char vsrc1, vsrc2;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
881 vector unsigned char vdst1, vdst2;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
882 vector unsigned short vR, vG, vB;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
883 vector unsigned short vpixel, vrpixel, vgpixel, vbpixel;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
884
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
885 /* Load 8 pixels from src as ARGB */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
886 voverflow = (vector unsigned char)vec_ld(15, src);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
887 vsrc = vec_perm(vsrc, voverflow, valigner);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
888 vsrc1 = vec_perm(vsrc, vsrc, vpermute);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
889 src += 16;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
890 vsrc = (vector unsigned char)vec_ld(15, src);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
891 voverflow = vec_perm(voverflow, vsrc, valigner);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
892 vsrc2 = vec_perm(voverflow, voverflow, vpermute);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
893 src += 16;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
894
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
895 /* Load 8 pixels from dst as XRGB */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
896 voverflow = vec_ld(0, dst);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
897 vR = vec_and((vector unsigned short)voverflow, vf800);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
898 vB = vec_sl((vector unsigned short)voverflow, v3_16);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
899 vG = vec_sl(vB, v2_16);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
900 vdst1 = (vector unsigned char)vec_perm((vector unsigned char)vR, (vector unsigned char)vR, vredalpha1);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
901 vdst1 = vec_perm(vdst1, (vector unsigned char)vB, vblue1);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
902 vdst1 = vec_perm(vdst1, (vector unsigned char)vG, vgreen1);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
903 vdst2 = (vector unsigned char)vec_perm((vector unsigned char)vR, (vector unsigned char)vR, vredalpha2);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
904 vdst2 = vec_perm(vdst2, (vector unsigned char)vB, vblue2);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
905 vdst2 = vec_perm(vdst2, (vector unsigned char)vG, vgreen2);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
906
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
907 /* Alpha blend 8 pixels as ARGB */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
908 valpha = vec_perm(vsrc1, v0, valphaPermute);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
909 VEC_MULTIPLY_ALPHA(vsrc1, vdst1, valpha, mergePermute, v1_16, v8_16);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
910 valpha = vec_perm(vsrc2, v0, valphaPermute);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
911 VEC_MULTIPLY_ALPHA(vsrc2, vdst2, valpha, mergePermute, v1_16, v8_16);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
912
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
913 /* Convert 8 pixels to 565 */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
914 vpixel = (vector unsigned short)vec_packpx((vector unsigned int)vdst1, (vector unsigned int)vdst2);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
915 vgpixel = (vector unsigned short)vec_perm(vdst1, vdst2, vgmerge);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
916 vgpixel = vec_and(vgpixel, vfc);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
917 vgpixel = vec_sl(vgpixel, v3_16);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
918 vrpixel = vec_sl(vpixel, v1_16);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
919 vrpixel = vec_and(vrpixel, vf800);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
920 vbpixel = vec_and(vpixel, v3f);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
921 vdst1 = vec_or((vector unsigned char)vrpixel, (vector unsigned char)vgpixel);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
922 vdst1 = vec_or(vdst1, (vector unsigned char)vbpixel);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
923
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
924 /* Store 8 pixels */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
925 vec_st(vdst1, 0, dst);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
926
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
927 width -= 8;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
928 dst += 16;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
929 }
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
930 ONE_PIXEL_BLEND((extrawidth), extrawidth);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
931 #undef ONE_PIXEL_BLEND
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
932 src += srcskip;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
933 dst += dstskip;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
934 }
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
935 }
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
936
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
937 static void Blit32to32SurfaceAlphaKeyAltivec(SDL_BlitInfo *info)
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
938 {
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
939 unsigned alpha = info->src->alpha;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
940 int height = info->d_height;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
941 Uint32 *srcp = (Uint32 *)info->s_pixels;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
942 int srcskip = info->s_skip >> 2;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
943 Uint32 *dstp = (Uint32 *)info->d_pixels;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
944 int dstskip = info->d_skip >> 2;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
945 SDL_PixelFormat *srcfmt = info->src;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
946 SDL_PixelFormat *dstfmt = info->dst;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
947 unsigned sA = srcfmt->alpha;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
948 unsigned dA = dstfmt->Amask ? SDL_ALPHA_OPAQUE : 0;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
949 Uint32 rgbmask = srcfmt->Rmask | srcfmt->Gmask | srcfmt->Bmask;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
950 Uint32 ckey = info->src->colorkey;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
951 vector unsigned char mergePermute;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
952 vector unsigned char vsrcPermute;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
953 vector unsigned char vdstPermute;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
954 vector unsigned char vsdstPermute;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
955 vector unsigned char valpha;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
956 vector unsigned char valphamask;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
957 vector unsigned char vbits;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
958 vector unsigned char v0;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
959 vector unsigned short v1;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
960 vector unsigned short v8;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
961 vector unsigned int vckey;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
962 vector unsigned int vrgbmask;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
963
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
964 mergePermute = VEC_MERGE_PERMUTE();
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
965 v0 = vec_splat_u8(0);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
966 v1 = vec_splat_u16(1);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
967 v8 = vec_splat_u16(8);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
968
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
969 /* set the alpha to 255 on the destination surf */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
970 valphamask = VEC_ALPHA_MASK();
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
971
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
972 vsrcPermute = calc_swizzle32(srcfmt, NULL);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
973 vdstPermute = calc_swizzle32(NULL, dstfmt);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
974 vsdstPermute = calc_swizzle32(dstfmt, NULL);
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 /* set a vector full of alpha and 255-alpha */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
977 ((unsigned char *)&valpha)[0] = alpha;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
978 valpha = vec_splat(valpha, 0);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
979 vbits = (vector unsigned char)vec_splat_s8(-1);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
980
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
981 ckey &= rgbmask;
1162
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents: 1047
diff changeset
982 ((unsigned int *)(char*)&vckey)[0] = ckey;
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
983 vckey = vec_splat(vckey, 0);
1162
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents: 1047
diff changeset
984 ((unsigned int *)(char*)&vrgbmask)[0] = rgbmask;
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
985 vrgbmask = vec_splat(vrgbmask, 0);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
986
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
987 while(height--) {
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
988 int width = info->d_width;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
989 #define ONE_PIXEL_BLEND(condition, widthvar) \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
990 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
991 Uint32 Pixel; \
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
992 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
993 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
994 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
995 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
996 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
997 ACCURATE_ALPHA_BLEND(sR, sG, sB, sA, dR, dG, dB); \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
998 ASSEMBLE_RGBA(((Uint8 *)dstp), 4, dstfmt, dR, dG, dB, dA); \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
999 } \
1162
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents: 1047
diff changeset
1000 dstp++; \
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents: 1047
diff changeset
1001 srcp++; \
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1002 widthvar--; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1003 }
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1004 ONE_PIXEL_BLEND((UNALIGNED_PTR(dstp)) && (width), width);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1005 if (width > 0) {
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1006 int extrawidth = (width % 4);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1007 vector unsigned char valigner = VEC_ALIGNER(srcp);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1008 vector unsigned char vs = (vector unsigned char)vec_ld(0, srcp);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1009 width -= extrawidth;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1010 while (width) {
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1011 vector unsigned char vsel;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1012 vector unsigned char voverflow;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1013 vector unsigned char vd;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1014 vector unsigned char vd_orig;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1015
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1016 /* s = *srcp */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1017 voverflow = (vector unsigned char)vec_ld(15, srcp);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1018 vs = vec_perm(vs, voverflow, valigner);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1019
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1020 /* vsel is set for items that match the key */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1021 vsel = (vector unsigned char)vec_and((vector unsigned int)vs, vrgbmask);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1022 vsel = (vector unsigned char)vec_cmpeq((vector unsigned int)vsel, vckey);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1023
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1024 /* permute to source format */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1025 vs = vec_perm(vs, valpha, vsrcPermute);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1026
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1027 /* d = *dstp */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1028 vd = (vector unsigned char)vec_ld(0, dstp);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1029 vd_orig = vd = vec_perm(vd, v0, vsdstPermute);
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 VEC_MULTIPLY_ALPHA(vs, vd, valpha, mergePermute, v1, v8);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1032
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1033 /* set the alpha channel to full on */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1034 vd = vec_or(vd, valphamask);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1035
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1036 /* mask out color key */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1037 vd = vec_sel(vd, vd_orig, vsel);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1038
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1039 /* permute to dest format */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1040 vd = vec_perm(vd, vbits, vdstPermute);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1041
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1042 /* *dstp = res */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1043 vec_st((vector unsigned int)vd, 0, dstp);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1044
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1045 srcp += 4;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1046 dstp += 4;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1047 width -= 4;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1048 vs = voverflow;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1049 }
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1050 ONE_PIXEL_BLEND((extrawidth), extrawidth);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1051 }
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1052 #undef ONE_PIXEL_BLEND
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 srcp += srcskip;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1055 dstp += dstskip;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1056 }
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1057 }
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1058
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1059
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1060 static void Blit32to32PixelAlphaAltivec(SDL_BlitInfo *info)
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1061 {
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1062 int width = info->d_width;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1063 int height = info->d_height;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1064 Uint32 *srcp = (Uint32 *)info->s_pixels;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1065 int srcskip = info->s_skip >> 2;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1066 Uint32 *dstp = (Uint32 *)info->d_pixels;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1067 int dstskip = info->d_skip >> 2;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1068 SDL_PixelFormat *srcfmt = info->src;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1069 SDL_PixelFormat *dstfmt = info->dst;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1070 vector unsigned char mergePermute;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1071 vector unsigned char valphaPermute;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1072 vector unsigned char vsrcPermute;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1073 vector unsigned char vdstPermute;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1074 vector unsigned char vsdstPermute;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1075 vector unsigned char valphamask;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1076 vector unsigned char vpixelmask;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1077 vector unsigned char v0;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1078 vector unsigned short v1;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1079 vector unsigned short v8;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1080
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1081 v0 = vec_splat_u8(0);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1082 v1 = vec_splat_u16(1);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1083 v8 = vec_splat_u16(8);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1084 mergePermute = VEC_MERGE_PERMUTE();
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1085 valphamask = VEC_ALPHA_MASK();
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1086 valphaPermute = vec_and(vec_lvsl(0, (int *)NULL), vec_splat_u8(0xC));
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1087 vpixelmask = vec_nor(valphamask, v0);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1088 vsrcPermute = calc_swizzle32(srcfmt, NULL);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1089 vdstPermute = calc_swizzle32(NULL, dstfmt);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1090 vsdstPermute = calc_swizzle32(dstfmt, NULL);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1091
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1092 while ( height-- ) {
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1093 width = info->d_width;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1094 #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
1095 Uint32 Pixel; \
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1096 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
1097 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
1098 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
1099 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
1100 ACCURATE_ALPHA_BLEND(sR, sG, sB, sA, dR, dG, dB); \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1101 ASSEMBLE_RGBA((Uint8 *)dstp, 4, dstfmt, dR, dG, dB, dA); \
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 ++srcp; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1104 ++dstp; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1105 widthvar--; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1106 }
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1107 ONE_PIXEL_BLEND((UNALIGNED_PTR(dstp)) && (width), width);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1108 if (width > 0) {
1487
dc6b59e925a2 Cleaning up warnings on MacOS X
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
1109 /* vsrcPermute */
dc6b59e925a2 Cleaning up warnings on MacOS X
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
1110 /* vdstPermute */
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1111 int extrawidth = (width % 4);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1112 vector unsigned char valigner = VEC_ALIGNER(srcp);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1113 vector unsigned char vs = (vector unsigned char)vec_ld(0, srcp);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1114 width -= extrawidth;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1115 while (width) {
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1116 vector unsigned char voverflow;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1117 vector unsigned char vd;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1118 vector unsigned char valpha;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1119 vector unsigned char vdstalpha;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1120 /* s = *srcp */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1121 voverflow = (vector unsigned char)vec_ld(15, srcp);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1122 vs = vec_perm(vs, voverflow, valigner);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1123 vs = vec_perm(vs, v0, vsrcPermute);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1124
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1125 valpha = vec_perm(vs, v0, valphaPermute);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1126
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1127 /* d = *dstp */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1128 vd = (vector unsigned char)vec_ld(0, dstp);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1129 vd = vec_perm(vd, v0, vsdstPermute);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1130 vdstalpha = vec_and(vd, valphamask);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1131
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1132 VEC_MULTIPLY_ALPHA(vs, vd, valpha, mergePermute, v1, v8);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1133
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1134 /* set the alpha to the dest alpha */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1135 vd = vec_and(vd, vpixelmask);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1136 vd = vec_or(vd, vdstalpha);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1137 vd = vec_perm(vd, v0, vdstPermute);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1138
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1139 /* *dstp = res */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1140 vec_st((vector unsigned int)vd, 0, dstp);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1141
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1142 srcp += 4;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1143 dstp += 4;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1144 width -= 4;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1145 vs = voverflow;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1146
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1147 }
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1148 ONE_PIXEL_BLEND((extrawidth), extrawidth);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1149 }
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1150 srcp += srcskip;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1151 dstp += dstskip;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1152 #undef ONE_PIXEL_BLEND
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1153 }
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1154 }
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1155
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1156 /* fast ARGB888->(A)RGB888 blending with pixel alpha */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1157 static void BlitRGBtoRGBPixelAlphaAltivec(SDL_BlitInfo *info)
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1158 {
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1159 int width = info->d_width;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1160 int height = info->d_height;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1161 Uint32 *srcp = (Uint32 *)info->s_pixels;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1162 int srcskip = info->s_skip >> 2;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1163 Uint32 *dstp = (Uint32 *)info->d_pixels;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1164 int dstskip = info->d_skip >> 2;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1165 vector unsigned char mergePermute;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1166 vector unsigned char valphaPermute;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1167 vector unsigned char valphamask;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1168 vector unsigned char vpixelmask;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1169 vector unsigned char v0;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1170 vector unsigned short v1;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1171 vector unsigned short v8;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1172 v0 = vec_splat_u8(0);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1173 v1 = vec_splat_u16(1);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1174 v8 = vec_splat_u16(8);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1175 mergePermute = VEC_MERGE_PERMUTE();
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1176 valphamask = VEC_ALPHA_MASK();
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1177 valphaPermute = vec_and(vec_lvsl(0, (int *)NULL), vec_splat_u8(0xC));
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
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1180 vpixelmask = vec_nor(valphamask, v0);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1181 while(height--) {
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1182 width = info->d_width;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1183 #define ONE_PIXEL_BLEND(condition, widthvar) \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1184 while ((condition)) { \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1185 Uint32 dalpha; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1186 Uint32 d; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1187 Uint32 s1; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1188 Uint32 d1; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1189 Uint32 s = *srcp; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1190 Uint32 alpha = s >> 24; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1191 if(alpha) { \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1192 if(alpha == SDL_ALPHA_OPAQUE) { \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1193 *dstp = (s & 0x00ffffff) | (*dstp & 0xff000000); \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1194 } else { \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1195 d = *dstp; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1196 dalpha = d & 0xff000000; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1197 s1 = s & 0xff00ff; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1198 d1 = d & 0xff00ff; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1199 d1 = (d1 + ((s1 - d1) * alpha >> 8)) & 0xff00ff; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1200 s &= 0xff00; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1201 d &= 0xff00; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1202 d = (d + ((s - d) * alpha >> 8)) & 0xff00; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1203 *dstp = d1 | d | dalpha; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1204 } \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1205 } \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1206 ++srcp; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1207 ++dstp; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1208 widthvar--; \
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 ONE_PIXEL_BLEND((UNALIGNED_PTR(dstp)) && (width), width);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1211 if (width > 0) {
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1212 int extrawidth = (width % 4);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1213 vector unsigned char valigner = VEC_ALIGNER(srcp);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1214 vector unsigned char vs = (vector unsigned char)vec_ld(0, srcp);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1215 width -= extrawidth;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1216 while (width) {
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1217 vector unsigned char voverflow;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1218 vector unsigned char vd;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1219 vector unsigned char valpha;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1220 vector unsigned char vdstalpha;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1221 /* s = *srcp */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1222 voverflow = (vector unsigned char)vec_ld(15, srcp);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1223 vs = vec_perm(vs, voverflow, valigner);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1224
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1225 valpha = vec_perm(vs, v0, valphaPermute);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1226
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1227 /* d = *dstp */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1228 vd = (vector unsigned char)vec_ld(0, dstp);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1229 vdstalpha = vec_and(vd, valphamask);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1230
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1231 VEC_MULTIPLY_ALPHA(vs, vd, valpha, mergePermute, v1, v8);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1232
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1233 /* set the alpha to the dest alpha */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1234 vd = vec_and(vd, vpixelmask);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1235 vd = vec_or(vd, vdstalpha);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1236
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1237 /* *dstp = res */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1238 vec_st((vector unsigned int)vd, 0, dstp);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1239
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1240 srcp += 4;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1241 dstp += 4;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1242 width -= 4;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1243 vs = voverflow;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1244 }
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1245 ONE_PIXEL_BLEND((extrawidth), extrawidth);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1246 }
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1247 srcp += srcskip;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1248 dstp += dstskip;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1249 }
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1250 #undef ONE_PIXEL_BLEND
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1251 }
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1252
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1253 static void Blit32to32SurfaceAlphaAltivec(SDL_BlitInfo *info)
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1254 {
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1255 /* XXX : 6 */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1256 unsigned alpha = info->src->alpha;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1257 int height = info->d_height;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1258 Uint32 *srcp = (Uint32 *)info->s_pixels;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1259 int srcskip = info->s_skip >> 2;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1260 Uint32 *dstp = (Uint32 *)info->d_pixels;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1261 int dstskip = info->d_skip >> 2;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1262 SDL_PixelFormat *srcfmt = info->src;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1263 SDL_PixelFormat *dstfmt = info->dst;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1264 unsigned sA = srcfmt->alpha;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1265 unsigned dA = dstfmt->Amask ? SDL_ALPHA_OPAQUE : 0;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1266 vector unsigned char mergePermute;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1267 vector unsigned char vsrcPermute;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1268 vector unsigned char vdstPermute;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1269 vector unsigned char vsdstPermute;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1270 vector unsigned char valpha;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1271 vector unsigned char valphamask;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1272 vector unsigned char vbits;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1273 vector unsigned short v1;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1274 vector unsigned short v8;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1275
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1276 mergePermute = VEC_MERGE_PERMUTE();
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1277 v1 = vec_splat_u16(1);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1278 v8 = vec_splat_u16(8);
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 /* set the alpha to 255 on the destination surf */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1281 valphamask = VEC_ALPHA_MASK();
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1282
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1283 vsrcPermute = calc_swizzle32(srcfmt, NULL);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1284 vdstPermute = calc_swizzle32(NULL, dstfmt);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1285 vsdstPermute = calc_swizzle32(dstfmt, NULL);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1286
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1287 /* set a vector full of alpha and 255-alpha */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1288 ((unsigned char *)&valpha)[0] = alpha;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1289 valpha = vec_splat(valpha, 0);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1290 vbits = (vector unsigned char)vec_splat_s8(-1);
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 while(height--) {
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1293 int width = info->d_width;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1294 #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
1295 Uint32 Pixel; \
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1296 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
1297 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
1298 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
1299 ACCURATE_ALPHA_BLEND(sR, sG, sB, sA, dR, dG, dB); \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1300 ASSEMBLE_RGBA(((Uint8 *)dstp), 4, dstfmt, dR, dG, dB, dA); \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1301 ++srcp; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1302 ++dstp; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1303 widthvar--; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1304 }
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1305 ONE_PIXEL_BLEND((UNALIGNED_PTR(dstp)) && (width), width);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1306 if (width > 0) {
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1307 int extrawidth = (width % 4);
3910
af4d584e0edb Handle source data alignment correctly in Blit32to32SurfaceAlphaAltivec().
Ryan C. Gordon <icculus@icculus.org>
parents: 3899
diff changeset
1308 vector unsigned char valigner = VEC_ALIGNER(srcp);
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1309 vector unsigned char vs = (vector unsigned char)vec_ld(0, srcp);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1310 width -= extrawidth;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1311 while (width) {
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1312 vector unsigned char voverflow;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1313 vector unsigned char vd;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1314
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1315 /* s = *srcp */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1316 voverflow = (vector unsigned char)vec_ld(15, srcp);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1317 vs = vec_perm(vs, voverflow, valigner);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1318 vs = vec_perm(vs, valpha, vsrcPermute);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1319
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1320 /* d = *dstp */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1321 vd = (vector unsigned char)vec_ld(0, dstp);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1322 vd = vec_perm(vd, vd, vsdstPermute);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1323
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1324 VEC_MULTIPLY_ALPHA(vs, vd, valpha, mergePermute, v1, v8);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1325
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1326 /* set the alpha channel to full on */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1327 vd = vec_or(vd, valphamask);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1328 vd = vec_perm(vd, vbits, vdstPermute);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1329
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1330 /* *dstp = res */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1331 vec_st((vector unsigned int)vd, 0, dstp);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1332
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1333 srcp += 4;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1334 dstp += 4;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1335 width -= 4;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1336 vs = voverflow;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1337 }
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1338 ONE_PIXEL_BLEND((extrawidth), extrawidth);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1339 }
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1340 #undef ONE_PIXEL_BLEND
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1341
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1342 srcp += srcskip;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1343 dstp += dstskip;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1344 }
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1345
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1346 }
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1347
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1348
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1349 /* fast RGB888->(A)RGB888 blending */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1350 static void BlitRGBtoRGBSurfaceAlphaAltivec(SDL_BlitInfo *info)
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1351 {
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1352 unsigned alpha = info->src->alpha;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1353 int height = info->d_height;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1354 Uint32 *srcp = (Uint32 *)info->s_pixels;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1355 int srcskip = info->s_skip >> 2;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1356 Uint32 *dstp = (Uint32 *)info->d_pixels;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1357 int dstskip = info->d_skip >> 2;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1358 vector unsigned char mergePermute;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1359 vector unsigned char valpha;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1360 vector unsigned char valphamask;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1361 vector unsigned short v1;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1362 vector unsigned short v8;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1363
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1364 mergePermute = VEC_MERGE_PERMUTE();
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1365 v1 = vec_splat_u16(1);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1366 v8 = vec_splat_u16(8);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1367
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1368 /* set the alpha to 255 on the destination surf */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1369 valphamask = VEC_ALPHA_MASK();
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 /* set a vector full of alpha and 255-alpha */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1372 ((unsigned char *)&valpha)[0] = alpha;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1373 valpha = vec_splat(valpha, 0);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1374
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1375 while(height--) {
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1376 int width = info->d_width;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1377 #define ONE_PIXEL_BLEND(condition, widthvar) while ((condition)) { \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1378 Uint32 s = *srcp; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1379 Uint32 d = *dstp; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1380 Uint32 s1 = s & 0xff00ff; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1381 Uint32 d1 = d & 0xff00ff; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1382 d1 = (d1 + ((s1 - d1) * alpha >> 8)) \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1383 & 0xff00ff; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1384 s &= 0xff00; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1385 d &= 0xff00; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1386 d = (d + ((s - d) * alpha >> 8)) & 0xff00; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1387 *dstp = d1 | d | 0xff000000; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1388 ++srcp; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1389 ++dstp; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1390 widthvar--; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1391 }
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1392 ONE_PIXEL_BLEND((UNALIGNED_PTR(dstp)) && (width), width);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1393 if (width > 0) {
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1394 int extrawidth = (width % 4);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1395 vector unsigned char valigner = VEC_ALIGNER(srcp);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1396 vector unsigned char vs = (vector unsigned char)vec_ld(0, srcp);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1397 width -= extrawidth;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1398 while (width) {
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1399 vector unsigned char voverflow;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1400 vector unsigned char vd;
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 /* s = *srcp */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1403 voverflow = (vector unsigned char)vec_ld(15, srcp);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1404 vs = vec_perm(vs, voverflow, valigner);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1405
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1406 /* d = *dstp */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1407 vd = (vector unsigned char)vec_ld(0, dstp);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1408
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1409 VEC_MULTIPLY_ALPHA(vs, vd, valpha, mergePermute, v1, v8);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1410
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1411 /* set the alpha channel to full on */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1412 vd = vec_or(vd, valphamask);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1413
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1414 /* *dstp = res */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1415 vec_st((vector unsigned int)vd, 0, dstp);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1416
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1417 srcp += 4;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1418 dstp += 4;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1419 width -= 4;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1420 vs = voverflow;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1421 }
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1422 ONE_PIXEL_BLEND((extrawidth), extrawidth);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1423 }
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1424 #undef ONE_PIXEL_BLEND
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1425
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1426 srcp += srcskip;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1427 dstp += dstskip;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1428 }
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1429 }
1795
398ac0f88e4d Fixed bug #220
Sam Lantinga <slouken@libsdl.org>
parents: 1617
diff changeset
1430 #if __MWERKS__
398ac0f88e4d Fixed bug #220
Sam Lantinga <slouken@libsdl.org>
parents: 1617
diff changeset
1431 #pragma altivec_model off
398ac0f88e4d Fixed bug #220
Sam Lantinga <slouken@libsdl.org>
parents: 1617
diff changeset
1432 #endif
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
1433 #endif /* SDL_ALTIVEC_BLITTERS */
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1434
1
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1435 /* fast RGB888->(A)RGB888 blending with surface alpha=128 special case */
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1436 static void BlitRGBtoRGBSurfaceAlpha128(SDL_BlitInfo *info)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1437 {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1438 int width = info->d_width;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1439 int height = info->d_height;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1440 Uint32 *srcp = (Uint32 *)info->s_pixels;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1441 int srcskip = info->s_skip >> 2;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1442 Uint32 *dstp = (Uint32 *)info->d_pixels;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1443 int dstskip = info->d_skip >> 2;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1444
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1445 while(height--) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1446 DUFFS_LOOP4({
1
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1447 Uint32 s = *srcp++;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1448 Uint32 d = *dstp;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1449 *dstp++ = ((((s & 0x00fefefe) + (d & 0x00fefefe)) >> 1)
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1450 + (s & d & 0x00010101)) | 0xff000000;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1451 }, width);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1452 srcp += srcskip;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1453 dstp += dstskip;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1454 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1455 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1456
1
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1457 /* fast RGB888->(A)RGB888 blending with surface alpha */
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1458 static void BlitRGBtoRGBSurfaceAlpha(SDL_BlitInfo *info)
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1459 {
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1460 unsigned alpha = info->src->alpha;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1461 if(alpha == 128) {
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1462 BlitRGBtoRGBSurfaceAlpha128(info);
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1463 } else {
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1464 int width = info->d_width;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1465 int height = info->d_height;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1466 Uint32 *srcp = (Uint32 *)info->s_pixels;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1467 int srcskip = info->s_skip >> 2;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1468 Uint32 *dstp = (Uint32 *)info->d_pixels;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1469 int dstskip = info->d_skip >> 2;
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1470 Uint32 s;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1471 Uint32 d;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1472 Uint32 s1;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1473 Uint32 d1;
1
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1474
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1475 while(height--) {
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1476 DUFFS_LOOP_DOUBLE2({
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1477 /* One Pixel Blend */
1
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1478 s = *srcp;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1479 d = *dstp;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1480 s1 = s & 0xff00ff;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1481 d1 = d & 0xff00ff;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1482 d1 = (d1 + ((s1 - d1) * alpha >> 8))
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1483 & 0xff00ff;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1484 s &= 0xff00;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1485 d &= 0xff00;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1486 d = (d + ((s - d) * alpha >> 8)) & 0xff00;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1487 *dstp = d1 | d | 0xff000000;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1488 ++srcp;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1489 ++dstp;
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1490 },{
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1491 /* Two Pixels Blend */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1492 s = *srcp;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1493 d = *dstp;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1494 s1 = s & 0xff00ff;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1495 d1 = d & 0xff00ff;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1496 d1 += (s1 - d1) * alpha >> 8;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1497 d1 &= 0xff00ff;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1498
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1499 s = ((s & 0xff00) >> 8) |
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1500 ((srcp[1] & 0xff00) << 8);
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1501 d = ((d & 0xff00) >> 8) |
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1502 ((dstp[1] & 0xff00) << 8);
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1503 d += (s - d) * alpha >> 8;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1504 d &= 0x00ff00ff;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1505
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1506 *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
1507 ++srcp;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1508
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1509 s1 = *srcp;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1510 d1 = *dstp;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1511 s1 &= 0xff00ff;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1512 d1 &= 0xff00ff;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1513 d1 += (s1 - d1) * alpha >> 8;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1514 d1 &= 0xff00ff;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1515
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1516 *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
1517 ++srcp;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1518 ++dstp;
1
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1519 }, width);
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1520 srcp += srcskip;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1521 dstp += dstskip;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1522 }
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1523 }
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1524 }
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1525
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1526 /* fast ARGB888->(A)RGB888 blending with pixel alpha */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1527 static void BlitRGBtoRGBPixelAlpha(SDL_BlitInfo *info)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1528 {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1529 int width = info->d_width;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1530 int height = info->d_height;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1531 Uint32 *srcp = (Uint32 *)info->s_pixels;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1532 int srcskip = info->s_skip >> 2;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1533 Uint32 *dstp = (Uint32 *)info->d_pixels;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1534 int dstskip = info->d_skip >> 2;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1535
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1536 while(height--) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1537 DUFFS_LOOP4({
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1538 Uint32 dalpha;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1539 Uint32 d;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1540 Uint32 s1;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1541 Uint32 d1;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1542 Uint32 s = *srcp;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1543 Uint32 alpha = s >> 24;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1544 /* FIXME: Here we special-case opaque alpha since the
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1545 compositioning used (>>8 instead of /255) doesn't handle
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1546 it correctly. Also special-case alpha=0 for speed?
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1547 Benchmark this! */
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1548 if(alpha) {
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1549 if(alpha == SDL_ALPHA_OPAQUE) {
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1550 *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
1551 } else {
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1552 /*
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1553 * take out the middle component (green), and process
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1554 * the other two in parallel. One multiply less.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1555 */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1556 d = *dstp;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1557 dalpha = d & 0xff000000;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1558 s1 = s & 0xff00ff;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1559 d1 = d & 0xff00ff;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1560 d1 = (d1 + ((s1 - d1) * alpha >> 8)) & 0xff00ff;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1561 s &= 0xff00;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1562 d &= 0xff00;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1563 d = (d + ((s - d) * alpha >> 8)) & 0xff00;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1564 *dstp = d1 | d | dalpha;
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1565 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1566 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1567 ++srcp;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1568 ++dstp;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1569 }, width);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1570 srcp += srcskip;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1571 dstp += dstskip;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1572 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1573 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1574
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1575 #if GCC_ASMBLIT
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1576 /* fast (as in MMX with prefetch) ARGB888->(A)RGB888 blending with pixel alpha */
3870
Sam Lantinga <slouken@libsdl.org>
parents: 1795
diff changeset
1577 static void BlitRGBtoRGBPixelAlphaMMX3DNOW(SDL_BlitInfo *info)
689
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 int width = info->d_width;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1580 int height = info->d_height;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1581 Uint32 *srcp = (Uint32 *)info->s_pixels;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1582 int srcskip = info->s_skip >> 2;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1583 Uint32 *dstp = (Uint32 *)info->d_pixels;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1584 int dstskip = info->d_skip >> 2;
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1585 SDL_PixelFormat* sf = info->src;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1586 Uint32 amask = sf->Amask;
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1587
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1588 __asm__ (
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1589 /* make mm6 all zeros. */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1590 "pxor %%mm6, %%mm6\n"
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1591
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1592 /* Make a mask to preserve the alpha. */
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1593 "movd %0, %%mm7\n\t" /* 0000F000 -> mm7 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1594 "punpcklbw %%mm7, %%mm7\n\t" /* FF000000 -> mm7 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1595 "pcmpeqb %%mm4, %%mm4\n\t" /* FFFFFFFF -> mm4 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1596 "movq %%mm4, %%mm3\n\t" /* FFFFFFFF -> mm3 (for later) */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1597 "pxor %%mm4, %%mm7\n\t" /* 00FFFFFF -> mm7 (mult mask) */
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1598
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1599 /* form channel masks */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1600 "movq %%mm7, %%mm4\n\t" /* 00FFFFFF -> mm4 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1601 "packsswb %%mm6, %%mm4\n\t" /* 00000FFF -> mm4 (channel mask) */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1602 "packsswb %%mm6, %%mm3\n\t" /* 0000FFFF -> mm3 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1603 "pxor %%mm4, %%mm3\n\t" /* 0000F000 -> mm3 (~channel mask) */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1604
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1605 /* get alpha channel shift */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1606 "movd %1, %%mm5\n\t" /* Ashift -> mm5 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1607
3931
d65b4a73c991 BlitRGBtoRGBPixelAlphaMMX() is putting the wrong value into a register.
Ryan C. Gordon <icculus@icculus.org>
parents: 3910
diff changeset
1608 : /* 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
1609
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1610 while(height--) {
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1611
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1612 DUFFS_LOOP4({
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1613 Uint32 alpha;
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1614
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1615 __asm__ (
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1616 "prefetch 64(%0)\n"
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1617 "prefetch 64(%1)\n"
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1618 : : "r" (srcp), "r" (dstp) );
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1619
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1620 alpha = *srcp & amask;
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1621 /* 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
1622 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
1623 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
1624 Benchmark this! */
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1625 if(alpha == 0) {
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1626 /* do nothing */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1627 }
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1628 else if(alpha == amask) {
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1629 /* opaque alpha -- copy RGB, keep dst alpha */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1630 /* using MMX here to free up regular registers for other things */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1631 __asm__ (
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1632 "movd (%0), %%mm0\n\t" /* src(ARGB) -> mm0 (0000ARGB)*/
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1633 "movd (%1), %%mm1\n\t" /* dst(ARGB) -> mm1 (0000ARGB)*/
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1634 "pand %%mm4, %%mm0\n\t" /* src & chanmask -> mm0 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1635 "pand %%mm3, %%mm1\n\t" /* dst & ~chanmask -> mm2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1636 "por %%mm0, %%mm1\n\t" /* src | dst -> mm1 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1637 "movd %%mm1, (%1) \n\t" /* mm1 -> dst */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1638
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1639 : : "r" (srcp), "r" (dstp) );
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1640 }
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1641
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1642 else {
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1643 __asm__ (
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1644 /* 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
1645 "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
1646 "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
1647
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1648 /* 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
1649
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1650 /* if supporting pshufw */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1651 /*"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
1652 /*"psrlw $8, %%mm2\n" */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1653
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1654 /* else: */
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1655 "movd %2, %%mm2\n"
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1656 "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
1657 "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
1658 "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
1659 "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
1660
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1661 /* move the colors into words. */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1662 "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
1663 "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
1664
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1665 /* src - dst */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1666 "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
1667
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1668 /* A * (src-dst) */
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1669 "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
1670 "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
1671 "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
1672
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1673 "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
1674
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1675 "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
1676
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1677 : : "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
1678
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 ++srcp;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1681 ++dstp;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1682 }, width);
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1683 srcp += srcskip;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1684 dstp += dstskip;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1685 }
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1686
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1687 __asm__ (
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1688 "emms\n"
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1689 : );
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1690 }
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1691 /* End GCC_ASMBLIT*/
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 #elif MSVC_ASMBLIT
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1694 /* fast (as in MMX with prefetch) ARGB888->(A)RGB888 blending with pixel alpha */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1695 static void BlitRGBtoRGBPixelAlphaMMX3DNOW(SDL_BlitInfo *info)
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1696 {
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1697 int width = info->d_width;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1698 int height = info->d_height;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1699 Uint32 *srcp = (Uint32 *)info->s_pixels;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1700 int srcskip = info->s_skip >> 2;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1701 Uint32 *dstp = (Uint32 *)info->d_pixels;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1702 int dstskip = info->d_skip >> 2;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1703 SDL_PixelFormat* sf = info->src;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1704 Uint32 chanmask = sf->Rmask | sf->Gmask | sf->Bmask;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1705 Uint32 amask = sf->Amask;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1706 Uint32 ashift = sf->Ashift;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1707 Uint64 multmask;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1708
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1709 __m64 src1, dst1, mm_alpha, mm_zero, dmask;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1710
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1711 mm_zero = _mm_setzero_si64(); /* 0 -> mm_zero */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1712 multmask = ~(0xFFFFi64 << (ashift * 2));
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1713 dmask = *(__m64*) &multmask; /* dst alpha mask -> dmask */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1714
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1715 while(height--) {
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1716 DUFFS_LOOP4({
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1717 Uint32 alpha;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1718
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1719 _m_prefetch(srcp + 16);
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1720 _m_prefetch(dstp + 16);
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1721
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1722 alpha = *srcp & amask;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1723 if (alpha == 0) {
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1724 /* do nothing */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1725 } else if (alpha == amask) {
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1726 /* copy RGB, keep dst alpha */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1727 *dstp = (*srcp & chanmask) | (*dstp & ~chanmask);
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1728 } else {
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1729 src1 = _mm_cvtsi32_si64(*srcp); /* src(ARGB) -> src1 (0000ARGB)*/
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1730 src1 = _mm_unpacklo_pi8(src1, mm_zero); /* 0A0R0G0B -> src1 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1731
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1732 dst1 = _mm_cvtsi32_si64(*dstp); /* dst(ARGB) -> dst1 (0000ARGB)*/
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1733 dst1 = _mm_unpacklo_pi8(dst1, mm_zero); /* 0A0R0G0B -> dst1 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1734
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1735 mm_alpha = _mm_cvtsi32_si64(alpha); /* alpha -> mm_alpha (0000000A) */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1736 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
1737 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
1738 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
1739 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
1740
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1741 /* blend */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1742 src1 = _mm_sub_pi16(src1, dst1);/* src - dst -> src1 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1743 src1 = _mm_mullo_pi16(src1, mm_alpha); /* (src - dst) * alpha -> src1 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1744 src1 = _mm_srli_pi16(src1, 8); /* src1 >> 8 -> src1(000R0G0B) */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1745 dst1 = _mm_add_pi8(src1, dst1); /* src1 + dst1(dst) -> dst1(0A0R0G0B) */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1746 dst1 = _mm_packs_pu16(dst1, mm_zero); /* 0000ARGB -> dst1 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1747
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1748 *dstp = _mm_cvtsi64_si32(dst1); /* dst1 -> pixel */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1749 }
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1750 ++srcp;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1751 ++dstp;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1752 }, width);
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1753 srcp += srcskip;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1754 dstp += dstskip;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1755 }
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1756 _mm_empty();
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 /* End MSVC_ASMBLIT */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1759
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1760 #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
1761
1
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1762 /* 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
1763
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1764 /* 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
1765 #define BLEND16_50(d, s, mask) \
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1766 ((((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
1767
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1768 /* blend two 16 bit pixels at 50% */
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1769 #define BLEND2x16_50(d, s, mask) \
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1770 (((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
1771 + (s & d & (~(mask | mask << 16))))
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1772
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1773 static void Blit16to16SurfaceAlpha128(SDL_BlitInfo *info, Uint16 mask)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1774 {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1775 int width = info->d_width;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1776 int height = info->d_height;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1777 Uint16 *srcp = (Uint16 *)info->s_pixels;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1778 int srcskip = info->s_skip >> 1;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1779 Uint16 *dstp = (Uint16 *)info->d_pixels;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1780 int dstskip = info->d_skip >> 1;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1781
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1782 while(height--) {
1456
84de7511f79f Fixed a bunch of 64-bit compatibility problems
Sam Lantinga <slouken@libsdl.org>
parents: 1443
diff changeset
1783 if(((uintptr_t)srcp ^ (uintptr_t)dstp) & 2) {
1
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1784 /*
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1785 * Source and destination not aligned, pipeline it.
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1786 * This is mostly a win for big blits but no loss for
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1787 * small ones
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1788 */
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1789 Uint32 prev_sw;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1790 int w = width;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1791
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1792 /* handle odd destination */
1456
84de7511f79f Fixed a bunch of 64-bit compatibility problems
Sam Lantinga <slouken@libsdl.org>
parents: 1443
diff changeset
1793 if((uintptr_t)dstp & 2) {
1
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1794 Uint16 d = *dstp, s = *srcp;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1795 *dstp = BLEND16_50(d, s, mask);
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1796 dstp++;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1797 srcp++;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1798 w--;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1799 }
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1800 srcp++; /* srcp is now 32-bit aligned */
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1801
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1802 /* bootstrap pipeline with first halfword */
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1803 prev_sw = ((Uint32 *)srcp)[-1];
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1804
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1805 while(w > 1) {
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1806 Uint32 sw, dw, s;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1807 sw = *(Uint32 *)srcp;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1808 dw = *(Uint32 *)dstp;
1443
9ebbbb4ae53b Fixed some OpenWatcom warnings
Sam Lantinga <slouken@libsdl.org>
parents: 1428
diff changeset
1809 #if SDL_BYTEORDER == SDL_BIG_ENDIAN
9ebbbb4ae53b Fixed some OpenWatcom warnings
Sam Lantinga <slouken@libsdl.org>
parents: 1428
diff changeset
1810 s = (prev_sw << 16) + (sw >> 16);
9ebbbb4ae53b Fixed some OpenWatcom warnings
Sam Lantinga <slouken@libsdl.org>
parents: 1428
diff changeset
1811 #else
9ebbbb4ae53b Fixed some OpenWatcom warnings
Sam Lantinga <slouken@libsdl.org>
parents: 1428
diff changeset
1812 s = (prev_sw >> 16) + (sw << 16);
9ebbbb4ae53b Fixed some OpenWatcom warnings
Sam Lantinga <slouken@libsdl.org>
parents: 1428
diff changeset
1813 #endif
1
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1814 prev_sw = sw;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1815 *(Uint32 *)dstp = BLEND2x16_50(dw, s, mask);
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1816 dstp += 2;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1817 srcp += 2;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1818 w -= 2;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1819 }
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1820
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1821 /* final pixel if any */
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1822 if(w) {
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1823 Uint16 d = *dstp, s;
1443
9ebbbb4ae53b Fixed some OpenWatcom warnings
Sam Lantinga <slouken@libsdl.org>
parents: 1428
diff changeset
1824 #if SDL_BYTEORDER == SDL_BIG_ENDIAN
9ebbbb4ae53b Fixed some OpenWatcom warnings
Sam Lantinga <slouken@libsdl.org>
parents: 1428
diff changeset
1825 s = (Uint16)prev_sw;
9ebbbb4ae53b Fixed some OpenWatcom warnings
Sam Lantinga <slouken@libsdl.org>
parents: 1428
diff changeset
1826 #else
9ebbbb4ae53b Fixed some OpenWatcom warnings
Sam Lantinga <slouken@libsdl.org>
parents: 1428
diff changeset
1827 s = (Uint16)(prev_sw >> 16);
9ebbbb4ae53b Fixed some OpenWatcom warnings
Sam Lantinga <slouken@libsdl.org>
parents: 1428
diff changeset
1828 #endif
1
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1829 *dstp = BLEND16_50(d, s, mask);
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1830 srcp++;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1831 dstp++;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1832 }
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1833 srcp += srcskip - 1;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1834 dstp += dstskip;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1835 } else {
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1836 /* source and destination are aligned */
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1837 int w = width;
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 /* first odd pixel? */
1456
84de7511f79f Fixed a bunch of 64-bit compatibility problems
Sam Lantinga <slouken@libsdl.org>
parents: 1443
diff changeset
1840 if((uintptr_t)srcp & 2) {
1
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1841 Uint16 d = *dstp, s = *srcp;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1842 *dstp = BLEND16_50(d, s, mask);
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1843 srcp++;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1844 dstp++;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1845 w--;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1846 }
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1847 /* srcp and dstp are now 32-bit aligned */
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1848
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1849 while(w > 1) {
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1850 Uint32 sw = *(Uint32 *)srcp;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1851 Uint32 dw = *(Uint32 *)dstp;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1852 *(Uint32 *)dstp = BLEND2x16_50(dw, sw, mask);
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1853 srcp += 2;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1854 dstp += 2;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1855 w -= 2;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1856 }
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1857
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1858 /* last odd pixel? */
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1859 if(w) {
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1860 Uint16 d = *dstp, s = *srcp;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1861 *dstp = BLEND16_50(d, s, mask);
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1862 srcp++;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1863 dstp++;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1864 }
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1865 srcp += srcskip;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1866 dstp += dstskip;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1867 }
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1868 }
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1869 }
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1870
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1871 #if GCC_ASMBLIT
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1872 /* fast RGB565->RGB565 blending with surface alpha */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1873 static void Blit565to565SurfaceAlphaMMX(SDL_BlitInfo *info)
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1874 {
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1875 unsigned alpha = info->src->alpha; /* downscale alpha to 5 bits */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1876 if(alpha == 128) {
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1877 Blit16to16SurfaceAlpha128(info, 0xf7de);
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1878 } else {
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1879 int width = info->d_width;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1880 int height = info->d_height;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1881 Uint16 *srcp = (Uint16 *)info->s_pixels;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1882 int srcskip = info->s_skip >> 1;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1883 Uint16 *dstp = (Uint16 *)info->d_pixels;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1884 int dstskip = info->d_skip >> 1;
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1885 Uint32 s, d;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1886 Uint8 load[8];
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1887
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1888 alpha &= ~(1+2+4); /* cut alpha to get the exact same behaviour */
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1889 *(Uint64 *)load = alpha;
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1890 alpha >>= 3; /* downscale alpha to 5 bits */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1891
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1892 movq_m2r(*load, mm0); /* alpha(0000000A) -> mm0 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1893 punpcklwd_r2r(mm0, mm0); /* 00000A0A -> mm0 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1894 punpcklwd_r2r(mm0, mm0); /* 0A0A0A0A -> mm0 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1895 /* position alpha to allow for mullo and mulhi on diff channels
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1896 to reduce the number of operations */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1897 psllq_i2r(3, mm0);
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1898
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1899 /* Setup the 565 color channel masks */
720
f90d80d68071 N Sep 17 8791 Sam Lantinga Re: tks source released
Sam Lantinga <slouken@libsdl.org>
parents: 689
diff changeset
1900 *(Uint64 *)load = 0x07E007E007E007E0ULL;
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1901 movq_m2r(*load, mm4); /* MASKGREEN -> mm4 */
720
f90d80d68071 N Sep 17 8791 Sam Lantinga Re: tks source released
Sam Lantinga <slouken@libsdl.org>
parents: 689
diff changeset
1902 *(Uint64 *)load = 0x001F001F001F001FULL;
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1903 movq_m2r(*load, mm7); /* MASKBLUE -> mm7 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1904 while(height--) {
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1905 DUFFS_LOOP_QUATRO2(
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1906 {
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1907 s = *srcp++;
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1908 d = *dstp;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1909 /*
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1910 * 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
1911 * 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
1912 * components at the same time.
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1913 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1914 s = (s | s << 16) & 0x07e0f81f;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1915 d = (d | d << 16) & 0x07e0f81f;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1916 d += (s - d) * alpha >> 5;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1917 d &= 0x07e0f81f;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1918 *dstp++ = d | d >> 16;
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1919 },{
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1920 s = *srcp++;
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1921 d = *dstp;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1922 /*
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1923 * 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
1924 * 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
1925 * components at the same time.
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1926 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1927 s = (s | s << 16) & 0x07e0f81f;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1928 d = (d | d << 16) & 0x07e0f81f;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1929 d += (s - d) * alpha >> 5;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1930 d &= 0x07e0f81f;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1931 *dstp++ = d | d >> 16;
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1932 s = *srcp++;
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1933 d = *dstp;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1934 /*
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1935 * 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
1936 * 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
1937 * components at the same time.
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1938 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1939 s = (s | s << 16) & 0x07e0f81f;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1940 d = (d | d << 16) & 0x07e0f81f;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1941 d += (s - d) * alpha >> 5;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1942 d &= 0x07e0f81f;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1943 *dstp++ = d | d >> 16;
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1944 },{
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1945 movq_m2r((*srcp), mm2);/* 4 src pixels -> mm2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1946 movq_m2r((*dstp), mm3);/* 4 dst pixels -> mm3 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1947
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1948 /* red -- does not need a mask since the right shift clears
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1949 the uninteresting bits */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1950 movq_r2r(mm2, mm5); /* src -> mm5 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1951 movq_r2r(mm3, mm6); /* dst -> mm6 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1952 psrlw_i2r(11, mm5); /* mm5 >> 11 -> mm5 [000r 000r 000r 000r] */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1953 psrlw_i2r(11, mm6); /* mm6 >> 11 -> mm6 [000r 000r 000r 000r] */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1954
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1955 /* blend */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1956 psubw_r2r(mm6, mm5);/* src - dst -> mm5 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1957 pmullw_r2r(mm0, mm5); /* mm5 * alpha -> mm5 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1958 /* alpha used is actually 11 bits
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1959 11 + 5 = 16 bits, so the sign bits are lost */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1960 psrlw_i2r(11, mm5); /* mm5 >> 11 -> mm5 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1961 paddw_r2r(mm5, mm6); /* mm5 + mm6(dst) -> mm6 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1962 psllw_i2r(11, mm6); /* mm6 << 11 -> mm6 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1963
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1964 movq_r2r(mm6, mm1); /* save new reds in dsts */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1965
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1966 /* green -- process the bits in place */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1967 movq_r2r(mm2, mm5); /* src -> mm5 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1968 movq_r2r(mm3, mm6); /* dst -> mm6 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1969 pand_r2r(mm4, mm5); /* src & MASKGREEN -> mm5 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1970 pand_r2r(mm4, mm6); /* dst & MASKGREEN -> mm6 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1971
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1972 /* blend */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1973 psubw_r2r(mm6, mm5);/* src - dst -> mm5 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1974 pmulhw_r2r(mm0, mm5); /* mm5 * alpha -> mm5 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1975 /* 11 + 11 - 16 = 6 bits, so all the lower uninteresting
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1976 bits are gone and the sign bits present */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1977 psllw_i2r(5, mm5); /* mm5 << 5 -> mm5 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1978 paddw_r2r(mm5, mm6); /* mm5 + mm6(dst) -> mm6 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1979
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1980 por_r2r(mm6, mm1); /* save new greens in dsts */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1981
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1982 /* blue */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1983 movq_r2r(mm2, mm5); /* src -> mm5 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1984 movq_r2r(mm3, mm6); /* dst -> mm6 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1985 pand_r2r(mm7, mm5); /* src & MASKBLUE -> mm5[000b 000b 000b 000b] */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1986 pand_r2r(mm7, mm6); /* dst & MASKBLUE -> mm6[000b 000b 000b 000b] */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1987
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1988 /* blend */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1989 psubw_r2r(mm6, mm5);/* src - dst -> mm5 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1990 pmullw_r2r(mm0, mm5); /* mm5 * alpha -> mm5 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1991 /* 11 + 5 = 16 bits, so the sign bits are lost and
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1992 the interesting bits will need to be MASKed */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1993 psrlw_i2r(11, mm5); /* mm5 >> 11 -> mm5 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1994 paddw_r2r(mm5, mm6); /* mm5 + mm6(dst) -> mm6 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1995 pand_r2r(mm7, mm6); /* mm6 & MASKBLUE -> mm6[000b 000b 000b 000b] */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1996
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1997 por_r2r(mm6, mm1); /* save new blues in dsts */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1998
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1999 movq_r2m(mm1, *dstp); /* mm1 -> 4 dst pixels */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2000
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2001 srcp += 4;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2002 dstp += 4;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2003 }, width);
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2004 srcp += srcskip;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2005 dstp += dstskip;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2006 }
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2007 emms();
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 }
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2010
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2011 /* fast RGB555->RGB555 blending with surface alpha */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2012 static void Blit555to555SurfaceAlphaMMX(SDL_BlitInfo *info)
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2013 {
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2014 unsigned alpha = info->src->alpha; /* downscale alpha to 5 bits */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2015 if(alpha == 128) {
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2016 Blit16to16SurfaceAlpha128(info, 0xfbde);
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2017 } else {
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2018 int width = info->d_width;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2019 int height = info->d_height;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2020 Uint16 *srcp = (Uint16 *)info->s_pixels;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2021 int srcskip = info->s_skip >> 1;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2022 Uint16 *dstp = (Uint16 *)info->d_pixels;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2023 int dstskip = info->d_skip >> 1;
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2024 Uint32 s, d;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2025 Uint8 load[8];
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2026
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2027 alpha &= ~(1+2+4); /* cut alpha to get the exact same behaviour */
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2028 *(Uint64 *)load = alpha;
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2029 alpha >>= 3; /* downscale alpha to 5 bits */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2030
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2031 movq_m2r(*load, mm0); /* alpha(0000000A) -> mm0 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2032 punpcklwd_r2r(mm0, mm0); /* 00000A0A -> mm0 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2033 punpcklwd_r2r(mm0, mm0); /* 0A0A0A0A -> mm0 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2034 /* position alpha to allow for mullo and mulhi on diff channels
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2035 to reduce the number of operations */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2036 psllq_i2r(3, mm0);
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 /* Setup the 555 color channel masks */
720
f90d80d68071 N Sep 17 8791 Sam Lantinga Re: tks source released
Sam Lantinga <slouken@libsdl.org>
parents: 689
diff changeset
2039 *(Uint64 *)load = 0x03E003E003E003E0ULL;
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2040 movq_m2r(*load, mm4); /* MASKGREEN -> mm4 */
720
f90d80d68071 N Sep 17 8791 Sam Lantinga Re: tks source released
Sam Lantinga <slouken@libsdl.org>
parents: 689
diff changeset
2041 *(Uint64 *)load = 0x001F001F001F001FULL;
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2042 movq_m2r(*load, mm7); /* MASKBLUE -> mm7 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2043 while(height--) {
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2044 DUFFS_LOOP_QUATRO2(
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 s = *srcp++;
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2047 d = *dstp;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2048 /*
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2049 * 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
2050 * 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
2051 * components at the same time.
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2052 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2053 s = (s | s << 16) & 0x03e07c1f;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2054 d = (d | d << 16) & 0x03e07c1f;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2055 d += (s - d) * alpha >> 5;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2056 d &= 0x03e07c1f;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2057 *dstp++ = d | d >> 16;
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2058 },{
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2059 s = *srcp++;
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2060 d = *dstp;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2061 /*
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2062 * 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
2063 * 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
2064 * components at the same time.
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2065 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2066 s = (s | s << 16) & 0x03e07c1f;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2067 d = (d | d << 16) & 0x03e07c1f;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2068 d += (s - d) * alpha >> 5;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2069 d &= 0x03e07c1f;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2070 *dstp++ = d | d >> 16;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2071 s = *srcp++;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2072 d = *dstp;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2073 /*
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2074 * 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
2075 * 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
2076 * components at the same time.
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2077 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2078 s = (s | s << 16) & 0x03e07c1f;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2079 d = (d | d << 16) & 0x03e07c1f;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2080 d += (s - d) * alpha >> 5;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2081 d &= 0x03e07c1f;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2082 *dstp++ = d | d >> 16;
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2083 },{
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2084 movq_m2r((*srcp), mm2);/* 4 src pixels -> mm2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2085 movq_m2r((*dstp), mm3);/* 4 dst pixels -> mm3 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2086
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2087 /* red -- process the bits in place */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2088 psllq_i2r(5, mm4); /* turn MASKGREEN into MASKRED */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2089 /* by reusing the GREEN mask we free up another mmx
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2090 register to accumulate the result */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2091
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2092 movq_r2r(mm2, mm5); /* src -> mm5 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2093 movq_r2r(mm3, mm6); /* dst -> mm6 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2094 pand_r2r(mm4, mm5); /* src & MASKRED -> mm5 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2095 pand_r2r(mm4, mm6); /* dst & MASKRED -> mm6 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2096
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2097 /* blend */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2098 psubw_r2r(mm6, mm5);/* src - dst -> mm5 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2099 pmulhw_r2r(mm0, mm5); /* mm5 * alpha -> mm5 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2100 /* 11 + 15 - 16 = 10 bits, uninteresting bits will be
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2101 cleared by a MASK below */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2102 psllw_i2r(5, mm5); /* mm5 << 5 -> mm5 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2103 paddw_r2r(mm5, mm6); /* mm5 + mm6(dst) -> mm6 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2104 pand_r2r(mm4, mm6); /* mm6 & MASKRED -> mm6 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2105
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2106 psrlq_i2r(5, mm4); /* turn MASKRED back into MASKGREEN */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2107
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2108 movq_r2r(mm6, mm1); /* save new reds in dsts */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2109
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2110 /* green -- process the bits in place */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2111 movq_r2r(mm2, mm5); /* src -> mm5 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2112 movq_r2r(mm3, mm6); /* dst -> mm6 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2113 pand_r2r(mm4, mm5); /* src & MASKGREEN -> mm5 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2114 pand_r2r(mm4, mm6); /* dst & MASKGREEN -> mm6 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2115
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2116 /* blend */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2117 psubw_r2r(mm6, mm5);/* src - dst -> mm5 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2118 pmulhw_r2r(mm0, mm5); /* mm5 * alpha -> mm5 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2119 /* 11 + 10 - 16 = 5 bits, so all the lower uninteresting
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2120 bits are gone and the sign bits present */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2121 psllw_i2r(5, mm5); /* mm5 << 5 -> mm5 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2122 paddw_r2r(mm5, mm6); /* mm5 + mm6(dst) -> mm6 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2123
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2124 por_r2r(mm6, mm1); /* save new greens in dsts */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2125
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2126 /* blue */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2127 movq_r2r(mm2, mm5); /* src -> mm5 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2128 movq_r2r(mm3, mm6); /* dst -> mm6 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2129 pand_r2r(mm7, mm5); /* src & MASKBLUE -> mm5[000b 000b 000b 000b] */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2130 pand_r2r(mm7, mm6); /* dst & MASKBLUE -> mm6[000b 000b 000b 000b] */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2131
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2132 /* blend */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2133 psubw_r2r(mm6, mm5);/* src - dst -> mm5 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2134 pmullw_r2r(mm0, mm5); /* mm5 * alpha -> mm5 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2135 /* 11 + 5 = 16 bits, so the sign bits are lost and
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2136 the interesting bits will need to be MASKed */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2137 psrlw_i2r(11, mm5); /* mm5 >> 11 -> mm5 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2138 paddw_r2r(mm5, mm6); /* mm5 + mm6(dst) -> mm6 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2139 pand_r2r(mm7, mm6); /* mm6 & MASKBLUE -> mm6[000b 000b 000b 000b] */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2140
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2141 por_r2r(mm6, mm1); /* save new blues in dsts */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2142
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2143 movq_r2m(mm1, *dstp);/* mm1 -> 4 dst pixels */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2144
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2145 srcp += 4;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2146 dstp += 4;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2147 }, width);
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2148 srcp += srcskip;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2149 dstp += dstskip;
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 emms();
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2152 }
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2153 }
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2154 /* End GCC_ASMBLIT */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2155
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2156 #elif MSVC_ASMBLIT
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2157 /* fast RGB565->RGB565 blending with surface alpha */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2158 static void Blit565to565SurfaceAlphaMMX(SDL_BlitInfo *info)
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2159 {
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2160 unsigned alpha = info->src->alpha;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2161 if(alpha == 128) {
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2162 Blit16to16SurfaceAlpha128(info, 0xf7de);
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2163 } else {
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2164 int width = info->d_width;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2165 int height = info->d_height;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2166 Uint16 *srcp = (Uint16 *)info->s_pixels;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2167 int srcskip = info->s_skip >> 1;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2168 Uint16 *dstp = (Uint16 *)info->d_pixels;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2169 int dstskip = info->d_skip >> 1;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2170 Uint32 s, d;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2171
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2172 __m64 src1, dst1, src2, dst2, gmask, bmask, mm_res, mm_alpha;
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 alpha &= ~(1+2+4); /* cut alpha to get the exact same behaviour */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2175 mm_alpha = _mm_set_pi32(0, alpha); /* 0000000A -> mm_alpha */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2176 alpha >>= 3; /* downscale alpha to 5 bits */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2177
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2178 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
2179 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
2180 /* position alpha to allow for mullo and mulhi on diff channels
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2181 to reduce the number of operations */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2182 mm_alpha = _mm_slli_si64(mm_alpha, 3);
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2183
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2184 /* Setup the 565 color channel masks */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2185 gmask = _mm_set_pi32(0x07E007E0, 0x07E007E0); /* MASKGREEN -> gmask */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2186 bmask = _mm_set_pi32(0x001F001F, 0x001F001F); /* MASKBLUE -> bmask */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2187
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2188 while(height--) {
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2189 DUFFS_LOOP_QUATRO2(
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2190 {
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2191 s = *srcp++;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2192 d = *dstp;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2193 /*
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2194 * shift out the middle component (green) to
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2195 * the high 16 bits, and process all three RGB
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2196 * components at the same time.
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2197 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2198 s = (s | s << 16) & 0x07e0f81f;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2199 d = (d | d << 16) & 0x07e0f81f;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2200 d += (s - d) * alpha >> 5;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2201 d &= 0x07e0f81f;
1546
4b835e36633d *** empty log message ***
Sam Lantinga <slouken@libsdl.org>
parents: 1542
diff changeset
2202 *dstp++ = (Uint16)(d | d >> 16);
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2203 },{
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2204 s = *srcp++;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2205 d = *dstp;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2206 /*
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2207 * shift out the middle component (green) to
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2208 * the high 16 bits, and process all three RGB
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2209 * components at the same time.
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2210 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2211 s = (s | s << 16) & 0x07e0f81f;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2212 d = (d | d << 16) & 0x07e0f81f;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2213 d += (s - d) * alpha >> 5;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2214 d &= 0x07e0f81f;
1546
4b835e36633d *** empty log message ***
Sam Lantinga <slouken@libsdl.org>
parents: 1542
diff changeset
2215 *dstp++ = (Uint16)(d | d >> 16);
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2216 s = *srcp++;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2217 d = *dstp;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2218 /*
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2219 * shift out the middle component (green) to
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2220 * the high 16 bits, and process all three RGB
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2221 * components at the same time.
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2222 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2223 s = (s | s << 16) & 0x07e0f81f;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2224 d = (d | d << 16) & 0x07e0f81f;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2225 d += (s - d) * alpha >> 5;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2226 d &= 0x07e0f81f;
1546
4b835e36633d *** empty log message ***
Sam Lantinga <slouken@libsdl.org>
parents: 1542
diff changeset
2227 *dstp++ = (Uint16)(d | d >> 16);
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2228 },{
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2229 src1 = *(__m64*)srcp; /* 4 src pixels -> src1 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2230 dst1 = *(__m64*)dstp; /* 4 dst pixels -> dst1 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2231
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2232 /* red */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2233 src2 = src1;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2234 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
2235
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2236 dst2 = dst1;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2237 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
2238
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2239 /* blend */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2240 src2 = _mm_sub_pi16(src2, dst2);/* src - dst -> src2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2241 src2 = _mm_mullo_pi16(src2, mm_alpha); /* src2 * alpha -> src2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2242 src2 = _mm_srli_pi16(src2, 11); /* src2 >> 11 -> src2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2243 dst2 = _mm_add_pi16(src2, dst2); /* src2 + dst2 -> dst2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2244 dst2 = _mm_slli_pi16(dst2, 11); /* dst2 << 11 -> dst2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2245
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2246 mm_res = dst2; /* RED -> mm_res */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2247
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2248 /* green -- process the bits in place */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2249 src2 = src1;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2250 src2 = _mm_and_si64(src2, gmask); /* src & MASKGREEN -> src2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2251
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2252 dst2 = dst1;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2253 dst2 = _mm_and_si64(dst2, gmask); /* dst & MASKGREEN -> dst2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2254
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2255 /* blend */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2256 src2 = _mm_sub_pi16(src2, dst2);/* src - dst -> src2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2257 src2 = _mm_mulhi_pi16(src2, mm_alpha); /* src2 * alpha -> src2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2258 src2 = _mm_slli_pi16(src2, 5); /* src2 << 5 -> src2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2259 dst2 = _mm_add_pi16(src2, dst2); /* src2 + dst2 -> dst2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2260
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2261 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
2262
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2263 /* blue */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2264 src2 = src1;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2265 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
2266
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2267 dst2 = dst1;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2268 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
2269
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2270 /* blend */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2271 src2 = _mm_sub_pi16(src2, dst2);/* src - dst -> src2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2272 src2 = _mm_mullo_pi16(src2, mm_alpha); /* src2 * alpha -> src2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2273 src2 = _mm_srli_pi16(src2, 11); /* src2 >> 11 -> src2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2274 dst2 = _mm_add_pi16(src2, dst2); /* src2 + dst2 -> dst2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2275 dst2 = _mm_and_si64(dst2, bmask); /* dst2 & MASKBLUE -> dst2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2276
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2277 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
2278
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2279 *(__m64*)dstp = mm_res; /* mm_res -> 4 dst pixels */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2280
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2281 srcp += 4;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2282 dstp += 4;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2283 }, width);
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2284 srcp += srcskip;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2285 dstp += dstskip;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2286 }
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2287 _mm_empty();
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2288 }
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2289 }
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2290
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2291 /* fast RGB555->RGB555 blending with surface alpha */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2292 static void Blit555to555SurfaceAlphaMMX(SDL_BlitInfo *info)
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2293 {
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2294 unsigned alpha = info->src->alpha;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2295 if(alpha == 128) {
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2296 Blit16to16SurfaceAlpha128(info, 0xfbde);
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2297 } else {
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2298 int width = info->d_width;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2299 int height = info->d_height;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2300 Uint16 *srcp = (Uint16 *)info->s_pixels;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2301 int srcskip = info->s_skip >> 1;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2302 Uint16 *dstp = (Uint16 *)info->d_pixels;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2303 int dstskip = info->d_skip >> 1;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2304 Uint32 s, d;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2305
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2306 __m64 src1, dst1, src2, dst2, rmask, gmask, bmask, mm_res, mm_alpha;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2307
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2308 alpha &= ~(1+2+4); /* cut alpha to get the exact same behaviour */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2309 mm_alpha = _mm_set_pi32(0, alpha); /* 0000000A -> mm_alpha */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2310 alpha >>= 3; /* downscale alpha to 5 bits */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2311
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2312 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
2313 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
2314 /* position alpha to allow for mullo and mulhi on diff channels
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2315 to reduce the number of operations */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2316 mm_alpha = _mm_slli_si64(mm_alpha, 3);
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2317
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2318 /* Setup the 555 color channel masks */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2319 rmask = _mm_set_pi32(0x7C007C00, 0x7C007C00); /* MASKRED -> rmask */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2320 gmask = _mm_set_pi32(0x03E003E0, 0x03E003E0); /* MASKGREEN -> gmask */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2321 bmask = _mm_set_pi32(0x001F001F, 0x001F001F); /* MASKBLUE -> bmask */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2322
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2323 while(height--) {
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2324 DUFFS_LOOP_QUATRO2(
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2325 {
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2326 s = *srcp++;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2327 d = *dstp;
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 * shift out the middle component (green) to
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2330 * the high 16 bits, and process all three RGB
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2331 * components at the same time.
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 s = (s | s << 16) & 0x03e07c1f;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2334 d = (d | d << 16) & 0x03e07c1f;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2335 d += (s - d) * alpha >> 5;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2336 d &= 0x03e07c1f;
1546
4b835e36633d *** empty log message ***
Sam Lantinga <slouken@libsdl.org>
parents: 1542
diff changeset
2337 *dstp++ = (Uint16)(d | d >> 16);
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2338 },{
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2339 s = *srcp++;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2340 d = *dstp;
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 * shift out the middle component (green) to
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2343 * the high 16 bits, and process all three RGB
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2344 * components at the same time.
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2345 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2346 s = (s | s << 16) & 0x03e07c1f;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2347 d = (d | d << 16) & 0x03e07c1f;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2348 d += (s - d) * alpha >> 5;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2349 d &= 0x03e07c1f;
1546
4b835e36633d *** empty log message ***
Sam Lantinga <slouken@libsdl.org>
parents: 1542
diff changeset
2350 *dstp++ = (Uint16)(d | d >> 16);
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2351 s = *srcp++;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2352 d = *dstp;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2353 /*
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2354 * shift out the middle component (green) to
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2355 * the high 16 bits, and process all three RGB
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2356 * components at the same time.
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 s = (s | s << 16) & 0x03e07c1f;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2359 d = (d | d << 16) & 0x03e07c1f;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2360 d += (s - d) * alpha >> 5;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2361 d &= 0x03e07c1f;
1546
4b835e36633d *** empty log message ***
Sam Lantinga <slouken@libsdl.org>
parents: 1542
diff changeset
2362 *dstp++ = (Uint16)(d | d >> 16);
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2363 },{
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2364 src1 = *(__m64*)srcp; /* 4 src pixels -> src1 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2365 dst1 = *(__m64*)dstp; /* 4 dst pixels -> dst1 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2366
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2367 /* red -- process the bits in place */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2368 src2 = src1;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2369 src2 = _mm_and_si64(src2, rmask); /* src & MASKRED -> src2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2370
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2371 dst2 = dst1;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2372 dst2 = _mm_and_si64(dst2, rmask); /* dst & MASKRED -> dst2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2373
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2374 /* blend */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2375 src2 = _mm_sub_pi16(src2, dst2);/* src - dst -> src2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2376 src2 = _mm_mulhi_pi16(src2, mm_alpha); /* src2 * alpha -> src2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2377 src2 = _mm_slli_pi16(src2, 5); /* src2 << 5 -> src2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2378 dst2 = _mm_add_pi16(src2, dst2); /* src2 + dst2 -> dst2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2379 dst2 = _mm_and_si64(dst2, rmask); /* dst2 & MASKRED -> dst2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2380
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2381 mm_res = dst2; /* RED -> mm_res */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2382
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2383 /* green -- process the bits in place */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2384 src2 = src1;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2385 src2 = _mm_and_si64(src2, gmask); /* src & MASKGREEN -> src2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2386
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2387 dst2 = dst1;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2388 dst2 = _mm_and_si64(dst2, gmask); /* dst & MASKGREEN -> dst2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2389
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2390 /* blend */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2391 src2 = _mm_sub_pi16(src2, dst2);/* src - dst -> src2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2392 src2 = _mm_mulhi_pi16(src2, mm_alpha); /* src2 * alpha -> src2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2393 src2 = _mm_slli_pi16(src2, 5); /* src2 << 5 -> src2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2394 dst2 = _mm_add_pi16(src2, dst2); /* src2 + dst2 -> dst2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2395
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2396 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
2397
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2398 /* blue */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2399 src2 = src1; /* src -> src2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2400 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
2401
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2402 dst2 = dst1; /* dst -> dst2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2403 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
2404
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2405 /* blend */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2406 src2 = _mm_sub_pi16(src2, dst2);/* src - dst -> src2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2407 src2 = _mm_mullo_pi16(src2, mm_alpha); /* src2 * alpha -> src2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2408 src2 = _mm_srli_pi16(src2, 11); /* src2 >> 11 -> src2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2409 dst2 = _mm_add_pi16(src2, dst2); /* src2 + dst2 -> dst2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2410 dst2 = _mm_and_si64(dst2, bmask); /* dst2 & MASKBLUE -> dst2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2411
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2412 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
2413
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2414 *(__m64*)dstp = mm_res; /* mm_res -> 4 dst pixels */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2415
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2416 srcp += 4;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2417 dstp += 4;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2418 }, width);
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2419 srcp += srcskip;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2420 dstp += dstskip;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2421 }
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2422 _mm_empty();
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2423 }
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2424 }
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2425 #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
2426
1
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2427 /* fast RGB565->RGB565 blending with surface alpha */
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2428 static void Blit565to565SurfaceAlpha(SDL_BlitInfo *info)
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2429 {
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2430 unsigned alpha = info->src->alpha;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2431 if(alpha == 128) {
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2432 Blit16to16SurfaceAlpha128(info, 0xf7de);
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2433 } else {
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2434 int width = info->d_width;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2435 int height = info->d_height;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2436 Uint16 *srcp = (Uint16 *)info->s_pixels;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2437 int srcskip = info->s_skip >> 1;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2438 Uint16 *dstp = (Uint16 *)info->d_pixels;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2439 int dstskip = info->d_skip >> 1;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2440 alpha >>= 3; /* downscale alpha to 5 bits */
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2441
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2442 while(height--) {
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2443 DUFFS_LOOP4({
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2444 Uint32 s = *srcp++;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2445 Uint32 d = *dstp;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2446 /*
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2447 * shift out the middle component (green) to
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2448 * 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
2449 * components at the same time.
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2450 */
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2451 s = (s | s << 16) & 0x07e0f81f;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2452 d = (d | d << 16) & 0x07e0f81f;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2453 d += (s - d) * alpha >> 5;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2454 d &= 0x07e0f81f;
1428
5f52867ba65c Update for Visual C++ 6.0
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
2455 *dstp++ = (Uint16)(d | d >> 16);
1
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2456 }, width);
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2457 srcp += srcskip;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2458 dstp += dstskip;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2459 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2460 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2461 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2462
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2463 /* fast RGB555->RGB555 blending with surface alpha */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2464 static void Blit555to555SurfaceAlpha(SDL_BlitInfo *info)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2465 {
1
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2466 unsigned alpha = info->src->alpha; /* downscale alpha to 5 bits */
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2467 if(alpha == 128) {
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2468 Blit16to16SurfaceAlpha128(info, 0xfbde);
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2469 } else {
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2470 int width = info->d_width;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2471 int height = info->d_height;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2472 Uint16 *srcp = (Uint16 *)info->s_pixels;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2473 int srcskip = info->s_skip >> 1;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2474 Uint16 *dstp = (Uint16 *)info->d_pixels;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2475 int dstskip = info->d_skip >> 1;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2476 alpha >>= 3; /* downscale alpha to 5 bits */
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2477
1
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2478 while(height--) {
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2479 DUFFS_LOOP4({
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2480 Uint32 s = *srcp++;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2481 Uint32 d = *dstp;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2482 /*
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2483 * shift out the middle component (green) to
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2484 * 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
2485 * components at the same time.
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2486 */
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2487 s = (s | s << 16) & 0x03e07c1f;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2488 d = (d | d << 16) & 0x03e07c1f;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2489 d += (s - d) * alpha >> 5;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2490 d &= 0x03e07c1f;
1428
5f52867ba65c Update for Visual C++ 6.0
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
2491 *dstp++ = (Uint16)(d | d >> 16);
1
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2492 }, width);
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2493 srcp += srcskip;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2494 dstp += dstskip;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2495 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2496 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2497 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2498
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2499 /* fast ARGB8888->RGB565 blending with pixel alpha */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2500 static void BlitARGBto565PixelAlpha(SDL_BlitInfo *info)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2501 {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2502 int width = info->d_width;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2503 int height = info->d_height;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2504 Uint32 *srcp = (Uint32 *)info->s_pixels;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2505 int srcskip = info->s_skip >> 2;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2506 Uint16 *dstp = (Uint16 *)info->d_pixels;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2507 int dstskip = info->d_skip >> 1;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2508
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2509 while(height--) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2510 DUFFS_LOOP4({
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2511 Uint32 s = *srcp;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2512 unsigned alpha = s >> 27; /* downscale alpha to 5 bits */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2513 /* FIXME: Here we special-case opaque alpha since the
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2514 compositioning used (>>8 instead of /255) doesn't handle
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2515 it correctly. Also special-case alpha=0 for speed?
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2516 Benchmark this! */
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2517 if(alpha) {
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2518 if(alpha == (SDL_ALPHA_OPAQUE >> 3)) {
1428
5f52867ba65c Update for Visual C++ 6.0
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
2519 *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
2520 } else {
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2521 Uint32 d = *dstp;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2522 /*
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2523 * convert source and destination to G0RAB65565
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2524 * and blend all components at the same time
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2525 */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2526 s = ((s & 0xfc00) << 11) + (s >> 8 & 0xf800)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2527 + (s >> 3 & 0x1f);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2528 d = (d | d << 16) & 0x07e0f81f;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2529 d += (s - d) * alpha >> 5;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2530 d &= 0x07e0f81f;
1428
5f52867ba65c Update for Visual C++ 6.0
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
2531 *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
2532 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2533 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2534 srcp++;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2535 dstp++;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2536 }, width);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2537 srcp += srcskip;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2538 dstp += dstskip;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2539 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2540 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2541
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2542 /* fast ARGB8888->RGB555 blending with pixel alpha */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2543 static void BlitARGBto555PixelAlpha(SDL_BlitInfo *info)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2544 {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2545 int width = info->d_width;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2546 int height = info->d_height;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2547 Uint32 *srcp = (Uint32 *)info->s_pixels;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2548 int srcskip = info->s_skip >> 2;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2549 Uint16 *dstp = (Uint16 *)info->d_pixels;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2550 int dstskip = info->d_skip >> 1;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2551
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2552 while(height--) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2553 DUFFS_LOOP4({
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2554 unsigned alpha;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2555 Uint32 s = *srcp;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2556 alpha = s >> 27; /* downscale alpha to 5 bits */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2557 /* FIXME: Here we special-case opaque alpha since the
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2558 compositioning used (>>8 instead of /255) doesn't handle
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2559 it correctly. Also special-case alpha=0 for speed?
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2560 Benchmark this! */
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2561 if(alpha) {
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2562 if(alpha == (SDL_ALPHA_OPAQUE >> 3)) {
1428
5f52867ba65c Update for Visual C++ 6.0
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
2563 *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
2564 } else {
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2565 Uint32 d = *dstp;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2566 /*
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2567 * convert source and destination to G0RAB65565
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2568 * and blend all components at the same time
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2569 */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2570 s = ((s & 0xf800) << 10) + (s >> 9 & 0x7c00)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2571 + (s >> 3 & 0x1f);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2572 d = (d | d << 16) & 0x03e07c1f;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2573 d += (s - d) * alpha >> 5;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2574 d &= 0x03e07c1f;
1428
5f52867ba65c Update for Visual C++ 6.0
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
2575 *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
2576 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2577 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2578 srcp++;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2579 dstp++;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2580 }, width);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2581 srcp += srcskip;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2582 dstp += dstskip;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2583 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2584 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2585
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2586 /* General (slow) N->N blending with per-surface alpha */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2587 static void BlitNtoNSurfaceAlpha(SDL_BlitInfo *info)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2588 {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2589 int width = info->d_width;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2590 int height = info->d_height;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2591 Uint8 *src = info->s_pixels;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2592 int srcskip = info->s_skip;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2593 Uint8 *dst = info->d_pixels;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2594 int dstskip = info->d_skip;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2595 SDL_PixelFormat *srcfmt = info->src;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2596 SDL_PixelFormat *dstfmt = info->dst;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2597 int srcbpp = srcfmt->BytesPerPixel;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2598 int dstbpp = dstfmt->BytesPerPixel;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2599 unsigned sA = srcfmt->alpha;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2600 unsigned dA = dstfmt->Amask ? SDL_ALPHA_OPAQUE : 0;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2601
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2602 if(sA) {
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2603 while ( height-- ) {
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2604 DUFFS_LOOP4(
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2605 {
1162
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents: 1047
diff changeset
2606 Uint32 Pixel;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2607 unsigned sR;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2608 unsigned sG;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2609 unsigned sB;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2610 unsigned dR;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2611 unsigned dG;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2612 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
2613 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
2614 DISEMBLE_RGB(dst, dstbpp, dstfmt, Pixel, dR, dG, dB);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2615 ALPHA_BLEND(sR, sG, sB, sA, dR, dG, dB);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2616 ASSEMBLE_RGBA(dst, dstbpp, dstfmt, dR, dG, dB, dA);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2617 src += srcbpp;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2618 dst += dstbpp;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2619 },
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2620 width);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2621 src += srcskip;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2622 dst += dstskip;
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2623 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2624 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2625 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2626
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2627 /* General (slow) colorkeyed N->N blending with per-surface alpha */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2628 static void BlitNtoNSurfaceAlphaKey(SDL_BlitInfo *info)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2629 {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2630 int width = info->d_width;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2631 int height = info->d_height;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2632 Uint8 *src = info->s_pixels;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2633 int srcskip = info->s_skip;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2634 Uint8 *dst = info->d_pixels;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2635 int dstskip = info->d_skip;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2636 SDL_PixelFormat *srcfmt = info->src;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2637 SDL_PixelFormat *dstfmt = info->dst;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2638 Uint32 ckey = srcfmt->colorkey;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2639 int srcbpp = srcfmt->BytesPerPixel;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2640 int dstbpp = dstfmt->BytesPerPixel;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2641 unsigned sA = srcfmt->alpha;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2642 unsigned dA = dstfmt->Amask ? SDL_ALPHA_OPAQUE : 0;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2643
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2644 while ( height-- ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2645 DUFFS_LOOP4(
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2646 {
1162
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents: 1047
diff changeset
2647 Uint32 Pixel;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2648 unsigned sR;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2649 unsigned sG;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2650 unsigned sB;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2651 unsigned dR;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2652 unsigned dG;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2653 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
2654 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
2655 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
2656 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
2657 DISEMBLE_RGB(dst, dstbpp, dstfmt, Pixel, dR, dG, dB);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2658 ALPHA_BLEND(sR, sG, sB, sA, dR, dG, dB);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2659 ASSEMBLE_RGBA(dst, dstbpp, dstfmt, dR, dG, dB, dA);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2660 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2661 src += srcbpp;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2662 dst += dstbpp;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2663 },
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2664 width);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2665 src += srcskip;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2666 dst += dstskip;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2667 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2668 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2669
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2670 /* General (slow) N->N blending with pixel alpha */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2671 static void BlitNtoNPixelAlpha(SDL_BlitInfo *info)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2672 {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2673 int width = info->d_width;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2674 int height = info->d_height;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2675 Uint8 *src = info->s_pixels;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2676 int srcskip = info->s_skip;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2677 Uint8 *dst = info->d_pixels;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2678 int dstskip = info->d_skip;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2679 SDL_PixelFormat *srcfmt = info->src;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2680 SDL_PixelFormat *dstfmt = info->dst;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2681
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2682 int srcbpp;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2683 int dstbpp;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2684
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2685 /* Set up some basic variables */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2686 srcbpp = srcfmt->BytesPerPixel;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2687 dstbpp = dstfmt->BytesPerPixel;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2688
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2689 /* FIXME: for 8bpp source alpha, this doesn't get opaque values
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2690 quite right. for <8bpp source alpha, it gets them very wrong
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2691 (check all macros!)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2692 It is unclear whether there is a good general solution that doesn't
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2693 need a branch (or a divide). */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2694 while ( height-- ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2695 DUFFS_LOOP4(
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2696 {
1162
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents: 1047
diff changeset
2697 Uint32 Pixel;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2698 unsigned sR;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2699 unsigned sG;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2700 unsigned sB;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2701 unsigned dR;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2702 unsigned dG;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2703 unsigned dB;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2704 unsigned sA;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2705 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
2706 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
2707 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
2708 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
2709 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
2710 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
2711 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2712 src += srcbpp;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2713 dst += dstbpp;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2714 },
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2715 width);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2716 src += srcskip;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2717 dst += dstskip;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2718 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2719 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2720
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2721
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2722 SDL_loblit SDL_CalculateAlphaBlit(SDL_Surface *surface, int blit_index)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2723 {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2724 SDL_PixelFormat *sf = surface->format;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2725 SDL_PixelFormat *df = surface->map->dst->format;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2726
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2727 if(sf->Amask == 0) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2728 if((surface->flags & SDL_SRCCOLORKEY) == SDL_SRCCOLORKEY) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2729 if(df->BytesPerPixel == 1)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2730 return BlitNto1SurfaceAlphaKey;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2731 else
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
2732 #if SDL_ALTIVEC_BLITTERS
1240
3b8a43c428bb From Bug #36:
Ryan C. Gordon <icculus@icculus.org>
parents: 1175
diff changeset
2733 if (sf->BytesPerPixel == 4 && df->BytesPerPixel == 4 &&
3b8a43c428bb From Bug #36:
Ryan C. Gordon <icculus@icculus.org>
parents: 1175
diff changeset
2734 !(surface->map->dst->flags & SDL_HWSURFACE) && SDL_HasAltiVec())
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
2735 return Blit32to32SurfaceAlphaKeyAltivec;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
2736 else
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
2737 #endif
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
2738 return BlitNtoNSurfaceAlphaKey;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2739 } else {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2740 /* Per-surface alpha blits */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2741 switch(df->BytesPerPixel) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2742 case 1:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2743 return BlitNto1SurfaceAlpha;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2744
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2745 case 2:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2746 if(surface->map->identity) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2747 if(df->Gmask == 0x7e0)
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2748 {
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
2749 #if MMX_ASMBLIT
739
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 720
diff changeset
2750 if(SDL_HasMMX())
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2751 return Blit565to565SurfaceAlphaMMX;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2752 else
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2753 #endif
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2754 return Blit565to565SurfaceAlpha;
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2755 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2756 else if(df->Gmask == 0x3e0)
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2757 {
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
2758 #if MMX_ASMBLIT
739
22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents: 720
diff changeset
2759 if(SDL_HasMMX())
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2760 return Blit555to555SurfaceAlphaMMX;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2761 else
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2762 #endif
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2763 return Blit555to555SurfaceAlpha;
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2764 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2765 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2766 return BlitNtoNSurfaceAlpha;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2767
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2768 case 4:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2769 if(sf->Rmask == df->Rmask
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2770 && sf->Gmask == df->Gmask
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2771 && sf->Bmask == df->Bmask
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2772 && sf->BytesPerPixel == 4)
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2773 {
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
2774 #if MMX_ASMBLIT
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2775 if(sf->Rshift % 8 == 0
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2776 && sf->Gshift % 8 == 0
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2777 && sf->Bshift % 8 == 0
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2778 && SDL_HasMMX())
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2779 return BlitRGBtoRGBSurfaceAlphaMMX;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2780 #endif
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2781 if((sf->Rmask | sf->Gmask | sf->Bmask) == 0xffffff)
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2782 {
1617
b255b4058d37 Patch from Alex to fix reverted code
Sam Lantinga <slouken@libsdl.org>
parents: 1546
diff changeset
2783 #if SDL_ALTIVEC_BLITTERS
b255b4058d37 Patch from Alex to fix reverted code
Sam Lantinga <slouken@libsdl.org>
parents: 1546
diff changeset
2784 if(!(surface->map->dst->flags & SDL_HWSURFACE)
b255b4058d37 Patch from Alex to fix reverted code
Sam Lantinga <slouken@libsdl.org>
parents: 1546
diff changeset
2785 && SDL_HasAltiVec())
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2786 return BlitRGBtoRGBSurfaceAlphaAltivec;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2787 #endif
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2788 return BlitRGBtoRGBSurfaceAlpha;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2789 }
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2790 }
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2791 #if SDL_ALTIVEC_BLITTERS
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2792 if((sf->BytesPerPixel == 4) &&
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2793 !(surface->map->dst->flags & SDL_HWSURFACE) && SDL_HasAltiVec())
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2794 return Blit32to32SurfaceAlphaAltivec;
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2795 else
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2796 #endif
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2797 return BlitNtoNSurfaceAlpha;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2798
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2799 case 3:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2800 default:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2801 return BlitNtoNSurfaceAlpha;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2802 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2803 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2804 } else {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2805 /* Per-pixel alpha blits */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2806 switch(df->BytesPerPixel) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2807 case 1:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2808 return BlitNto1PixelAlpha;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2809
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2810 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
2811 #if SDL_ALTIVEC_BLITTERS
1240
3b8a43c428bb From Bug #36:
Ryan C. Gordon <icculus@icculus.org>
parents: 1175
diff changeset
2812 if(sf->BytesPerPixel == 4 && !(surface->map->dst->flags & SDL_HWSURFACE) &&
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
2813 df->Gmask == 0x7e0 &&
1240
3b8a43c428bb From Bug #36:
Ryan C. Gordon <icculus@icculus.org>
parents: 1175
diff changeset
2814 df->Bmask == 0x1f && SDL_HasAltiVec())
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
2815 return Blit32to565PixelAlphaAltivec;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
2816 else
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
2817 #endif
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2818 if(sf->BytesPerPixel == 4 && sf->Amask == 0xff000000
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2819 && sf->Gmask == 0xff00
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2820 && ((sf->Rmask == 0xff && df->Rmask == 0x1f)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2821 || (sf->Bmask == 0xff && df->Bmask == 0x1f))) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2822 if(df->Gmask == 0x7e0)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2823 return BlitARGBto565PixelAlpha;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2824 else if(df->Gmask == 0x3e0)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2825 return BlitARGBto555PixelAlpha;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2826 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2827 return BlitNtoNPixelAlpha;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2828
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2829 case 4:
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2830 if(sf->Rmask == df->Rmask
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2831 && sf->Gmask == df->Gmask
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2832 && sf->Bmask == df->Bmask
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2833 && sf->BytesPerPixel == 4)
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2834 {
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
2835 #if MMX_ASMBLIT
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2836 if(sf->Rshift % 8 == 0
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2837 && sf->Gshift % 8 == 0
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2838 && sf->Bshift % 8 == 0
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2839 && sf->Ashift % 8 == 0
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2840 && sf->Aloss == 0)
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2841 {
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2842 if(SDL_Has3DNow())
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2843 return BlitRGBtoRGBPixelAlphaMMX3DNOW;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2844 if(SDL_HasMMX())
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2845 return BlitRGBtoRGBPixelAlphaMMX;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2846 }
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2847 #endif
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2848 if(sf->Amask == 0xff000000)
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2849 {
1617
b255b4058d37 Patch from Alex to fix reverted code
Sam Lantinga <slouken@libsdl.org>
parents: 1546
diff changeset
2850 #if SDL_ALTIVEC_BLITTERS
b255b4058d37 Patch from Alex to fix reverted code
Sam Lantinga <slouken@libsdl.org>
parents: 1546
diff changeset
2851 if(!(surface->map->dst->flags & SDL_HWSURFACE)
b255b4058d37 Patch from Alex to fix reverted code
Sam Lantinga <slouken@libsdl.org>
parents: 1546
diff changeset
2852 && SDL_HasAltiVec())
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2853 return BlitRGBtoRGBPixelAlphaAltivec;
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
2854 #endif
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2855 return BlitRGBtoRGBPixelAlpha;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2856 }
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2857 }
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
2858 #if SDL_ALTIVEC_BLITTERS
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2859 if (sf->Amask && sf->BytesPerPixel == 4 &&
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2860 !(surface->map->dst->flags & SDL_HWSURFACE) && SDL_HasAltiVec())
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2861 return Blit32to32PixelAlphaAltivec;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2862 else
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
2863 #endif
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2864 return BlitNtoNPixelAlpha;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2865
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2866 case 3:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2867 default:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2868 return BlitNtoNPixelAlpha;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2869 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2870 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2871 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2872