annotate src/video/SDL_blit_A.c @ 1882:339d733e3699

Fixed bug #258 Account for the menu height in AdjustWindowRectEx()
author Sam Lantinga <slouken@libsdl.org>
date Sat, 24 Jun 2006 04:30:01 +0000
parents 398ac0f88e4d
children 782fd950bd46 c121d94672cb 571c75f3d093
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 #if SDL_ASSEMBLY_ROUTINES
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28 #if defined(__GNUC__) && (defined(__i386__) || defined(__x86_64__))
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29 #define MMX_ASMBLIT 1
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30 #define GCC_ASMBLIT 1
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31 #elif defined(_MSC_VER) && (_MSC_VER >= 1200) && defined(_M_IX86)
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32 #define MMX_ASMBLIT 1
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33 #define MSVC_ASMBLIT 1
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34 #endif
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35 #endif /* SDL_ASSEMBLY_ROUTINES */
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36
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37 /* Function to check the CPU flags */
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38 #include "SDL_cpuinfo.h"
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39 #if GCC_ASMBLIT
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40 #include "mmx.h"
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41 #elif MSVC_ASMBLIT
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42 #include <mmintrin.h>
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43 #include <mm3dnow.h>
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44 #endif
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45
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46 /* Functions to perform alpha blended blitting */
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47
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48 /* N->1 blending with per-surface alpha */
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49 static void BlitNto1SurfaceAlpha(SDL_BlitInfo *info)
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50 {
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51 int width = info->d_width;
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52 int height = info->d_height;
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53 Uint8 *src = info->s_pixels;
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54 int srcskip = info->s_skip;
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55 Uint8 *dst = info->d_pixels;
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56 int dstskip = info->d_skip;
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57 Uint8 *palmap = info->table;
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58 SDL_PixelFormat *srcfmt = info->src;
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59 SDL_PixelFormat *dstfmt = info->dst;
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60 int srcbpp = srcfmt->BytesPerPixel;
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61
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62 const unsigned A = srcfmt->alpha;
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63
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64 while ( height-- ) {
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65 DUFFS_LOOP4(
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66 {
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67 Uint32 Pixel;
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68 unsigned sR;
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69 unsigned sG;
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70 unsigned sB;
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71 unsigned dR;
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72 unsigned dG;
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73 unsigned dB;
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74 DISEMBLE_RGB(src, srcbpp, srcfmt, Pixel, sR, sG, sB);
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75 dR = dstfmt->palette->colors[*dst].r;
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76 dG = dstfmt->palette->colors[*dst].g;
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77 dB = dstfmt->palette->colors[*dst].b;
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78 ALPHA_BLEND(sR, sG, sB, A, dR, dG, dB);
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79 dR &= 0xff;
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80 dG &= 0xff;
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81 dB &= 0xff;
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82 /* Pack RGB into 8bit pixel */
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83 if ( palmap == NULL ) {
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84 *dst =((dR>>5)<<(3+2))|
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85 ((dG>>5)<<(2))|
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86 ((dB>>6)<<(0));
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87 } else {
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88 *dst = palmap[((dR>>5)<<(3+2))|
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89 ((dG>>5)<<(2)) |
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90 ((dB>>6)<<(0))];
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91 }
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92 dst++;
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93 src += srcbpp;
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94 },
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95 width);
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96 src += srcskip;
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97 dst += dstskip;
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98 }
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99 }
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100
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101 /* N->1 blending with pixel alpha */
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102 static void BlitNto1PixelAlpha(SDL_BlitInfo *info)
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103 {
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104 int width = info->d_width;
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105 int height = info->d_height;
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106 Uint8 *src = info->s_pixels;
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107 int srcskip = info->s_skip;
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108 Uint8 *dst = info->d_pixels;
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109 int dstskip = info->d_skip;
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110 Uint8 *palmap = info->table;
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111 SDL_PixelFormat *srcfmt = info->src;
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112 SDL_PixelFormat *dstfmt = info->dst;
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113 int srcbpp = srcfmt->BytesPerPixel;
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114
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115 /* FIXME: fix alpha bit field expansion here too? */
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116 while ( height-- ) {
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117 DUFFS_LOOP4(
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118 {
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119 Uint32 Pixel;
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120 unsigned sR;
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121 unsigned sG;
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122 unsigned sB;
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123 unsigned sA;
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124 unsigned dR;
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125 unsigned dG;
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126 unsigned dB;
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127 DISEMBLE_RGBA(src,srcbpp,srcfmt,Pixel,sR,sG,sB,sA);
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128 dR = dstfmt->palette->colors[*dst].r;
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129 dG = dstfmt->palette->colors[*dst].g;
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130 dB = dstfmt->palette->colors[*dst].b;
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131 ALPHA_BLEND(sR, sG, sB, sA, dR, dG, dB);
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132 dR &= 0xff;
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133 dG &= 0xff;
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134 dB &= 0xff;
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135 /* Pack RGB into 8bit pixel */
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136 if ( palmap == NULL ) {
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137 *dst =((dR>>5)<<(3+2))|
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138 ((dG>>5)<<(2))|
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139 ((dB>>6)<<(0));
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140 } else {
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141 *dst = palmap[((dR>>5)<<(3+2))|
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142 ((dG>>5)<<(2)) |
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143 ((dB>>6)<<(0)) ];
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144 }
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145 dst++;
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146 src += srcbpp;
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147 },
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148 width);
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149 src += srcskip;
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150 dst += dstskip;
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151 }
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152 }
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153
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154 /* colorkeyed N->1 blending with per-surface alpha */
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155 static void BlitNto1SurfaceAlphaKey(SDL_BlitInfo *info)
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156 {
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157 int width = info->d_width;
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158 int height = info->d_height;
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159 Uint8 *src = info->s_pixels;
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160 int srcskip = info->s_skip;
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161 Uint8 *dst = info->d_pixels;
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162 int dstskip = info->d_skip;
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163 Uint8 *palmap = info->table;
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164 SDL_PixelFormat *srcfmt = info->src;
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165 SDL_PixelFormat *dstfmt = info->dst;
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166 int srcbpp = srcfmt->BytesPerPixel;
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167 Uint32 ckey = srcfmt->colorkey;
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168
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169 const int A = srcfmt->alpha;
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170
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171 while ( height-- ) {
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172 DUFFS_LOOP(
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173 {
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174 Uint32 Pixel;
0
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175 unsigned sR;
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176 unsigned sG;
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177 unsigned sB;
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178 unsigned dR;
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179 unsigned dG;
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180 unsigned dB;
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181 DISEMBLE_RGB(src, srcbpp, srcfmt, Pixel, sR, sG, sB);
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182 if ( Pixel != ckey ) {
0
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183 dR = dstfmt->palette->colors[*dst].r;
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184 dG = dstfmt->palette->colors[*dst].g;
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185 dB = dstfmt->palette->colors[*dst].b;
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186 ALPHA_BLEND(sR, sG, sB, A, dR, dG, dB);
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187 dR &= 0xff;
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188 dG &= 0xff;
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189 dB &= 0xff;
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190 /* Pack RGB into 8bit pixel */
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191 if ( palmap == NULL ) {
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192 *dst =((dR>>5)<<(3+2))|
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193 ((dG>>5)<<(2)) |
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194 ((dB>>6)<<(0));
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195 } else {
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196 *dst = palmap[((dR>>5)<<(3+2))|
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197 ((dG>>5)<<(2)) |
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198 ((dB>>6)<<(0)) ];
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199 }
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200 }
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201 dst++;
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202 src += srcbpp;
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203 },
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204 width);
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205 src += srcskip;
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206 dst += dstskip;
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207 }
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208 }
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209
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210 #if GCC_ASMBLIT
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211 /* fast RGB888->(A)RGB888 blending with surface alpha=128 special case */
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212 static void BlitRGBtoRGBSurfaceAlpha128MMX(SDL_BlitInfo *info)
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213 {
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214 int width = info->d_width;
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215 int height = info->d_height;
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216 Uint32 *srcp = (Uint32 *)info->s_pixels;
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217 int srcskip = info->s_skip >> 2;
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218 Uint32 *dstp = (Uint32 *)info->d_pixels;
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219 int dstskip = info->d_skip >> 2;
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220 Uint32 dalpha = info->dst->Amask;
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221 Uint8 load[8];
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222
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223 *(Uint64 *)load = 0x00fefefe00fefefeULL;/* alpha128 mask */
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224 movq_m2r(*load, mm4); /* alpha128 mask -> mm4 */
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225 *(Uint64 *)load = 0x0001010100010101ULL;/* !alpha128 mask */
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226 movq_m2r(*load, mm3); /* !alpha128 mask -> mm3 */
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227 movd_m2r(dalpha, mm7); /* dst alpha mask */
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228 punpckldq_r2r(mm7, mm7); /* dst alpha mask | dst alpha mask -> mm7 */
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229 while(height--) {
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230 DUFFS_LOOP_DOUBLE2(
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231 {
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232 Uint32 s = *srcp++;
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233 Uint32 d = *dstp;
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234 *dstp++ = ((((s & 0x00fefefe) + (d & 0x00fefefe)) >> 1)
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235 + (s & d & 0x00010101)) | dalpha;
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236 },{
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237 movq_m2r((*dstp), mm2);/* 2 x dst -> mm2(ARGBARGB) */
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238 movq_r2r(mm2, mm6); /* 2 x dst -> mm6(ARGBARGB) */
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239
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240 movq_m2r((*srcp), mm1);/* 2 x src -> mm1(ARGBARGB) */
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241 movq_r2r(mm1, mm5); /* 2 x src -> mm5(ARGBARGB) */
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242
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243 pand_r2r(mm4, mm6); /* dst & mask -> mm6 */
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244 pand_r2r(mm4, mm5); /* src & mask -> mm5 */
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245 paddd_r2r(mm6, mm5); /* mm6 + mm5 -> mm5 */
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246 pand_r2r(mm1, mm2); /* src & dst -> mm2 */
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247 psrld_i2r(1, mm5); /* mm5 >> 1 -> mm5 */
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248 pand_r2r(mm3, mm2); /* mm2 & !mask -> mm2 */
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249 paddd_r2r(mm5, mm2); /* mm5 + mm2 -> mm2 */
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250
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251 por_r2r(mm7, mm2); /* mm7(full alpha) | mm2 -> mm2 */
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252 movq_r2m(mm2, (*dstp));/* mm2 -> 2 x dst pixels */
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253 dstp += 2;
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254 srcp += 2;
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255 }, width);
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256 srcp += srcskip;
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257 dstp += dstskip;
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258 }
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259 emms();
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260 }
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261
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262 /* fast RGB888->(A)RGB888 blending with surface alpha */
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263 static void BlitRGBtoRGBSurfaceAlphaMMX(SDL_BlitInfo *info)
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264 {
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265 SDL_PixelFormat* df = info->dst;
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266 unsigned alpha = info->src->alpha;
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267
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268 if (alpha == 128 && (df->Rmask | df->Gmask | df->Bmask) == 0x00FFFFFF) {
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269 /* only call a128 version when R,G,B occupy lower bits */
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270 BlitRGBtoRGBSurfaceAlpha128MMX(info);
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271 } else {
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272 int width = info->d_width;
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273 int height = info->d_height;
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274 Uint32 *srcp = (Uint32 *)info->s_pixels;
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275 int srcskip = info->s_skip >> 2;
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276 Uint32 *dstp = (Uint32 *)info->d_pixels;
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277 int dstskip = info->d_skip >> 2;
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278
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279 pxor_r2r(mm5, mm5); /* 0 -> mm5 */
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280 /* form the alpha mult */
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281 movd_m2r(alpha, mm4); /* 0000000A -> mm4 */
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282 punpcklwd_r2r(mm4, mm4); /* 00000A0A -> mm4 */
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283 punpckldq_r2r(mm4, mm4); /* 0A0A0A0A -> mm4 */
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284 alpha = (0xff << df->Rshift) | (0xff << df->Gshift) | (0xff << df->Bshift);
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285 movd_m2r(alpha, mm0); /* 00000FFF -> mm0 */
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286 punpcklbw_r2r(mm0, mm0); /* 00FFFFFF -> mm0 */
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287 pand_r2r(mm0, mm4); /* 0A0A0A0A -> mm4, minus 1 chan */
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288 /* at this point mm4 can be 000A0A0A or 0A0A0A00 or another combo */
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289 movd_m2r(df->Amask, mm7); /* dst alpha mask */
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290 punpckldq_r2r(mm7, mm7); /* dst alpha mask | dst alpha mask -> mm7 */
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291
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292 while(height--) {
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293 DUFFS_LOOP_DOUBLE2({
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294 /* One Pixel Blend */
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295 movd_m2r((*srcp), mm1);/* src(ARGB) -> mm1 (0000ARGB)*/
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296 movd_m2r((*dstp), mm2);/* dst(ARGB) -> mm2 (0000ARGB)*/
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297 punpcklbw_r2r(mm5, mm1); /* 0A0R0G0B -> mm1(src) */
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298 punpcklbw_r2r(mm5, mm2); /* 0A0R0G0B -> mm2(dst) */
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299
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diff changeset
300 psubw_r2r(mm2, mm1);/* src - dst -> mm1 */
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diff changeset
301 pmullw_r2r(mm4, mm1); /* mm1 * alpha -> mm1 */
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diff changeset
302 psrlw_i2r(8, mm1); /* mm1 >> 8 -> mm1 */
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303 paddb_r2r(mm1, mm2); /* mm1 + mm2(dst) -> mm2 */
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diff changeset
304
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diff changeset
305 packuswb_r2r(mm5, mm2); /* ARGBARGB -> mm2 */
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diff changeset
306 por_r2r(mm7, mm2); /* mm7(full alpha) | mm2 -> mm2 */
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307 movd_r2m(mm2, *dstp);/* mm2 -> pixel */
689
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308 ++srcp;
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diff changeset
309 ++dstp;
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diff changeset
310 },{
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diff changeset
311 /* Two Pixels Blend */
689
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312 movq_m2r((*srcp), mm0);/* 2 x src -> mm0(ARGBARGB)*/
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313 movq_m2r((*dstp), mm2);/* 2 x dst -> mm2(ARGBARGB) */
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diff changeset
314 movq_r2r(mm0, mm1); /* 2 x src -> mm1(ARGBARGB) */
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diff changeset
315 movq_r2r(mm2, mm6); /* 2 x dst -> mm6(ARGBARGB) */
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diff changeset
316
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diff changeset
317 punpcklbw_r2r(mm5, mm0); /* low - 0A0R0G0B -> mm0(src1) */
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diff changeset
318 punpckhbw_r2r(mm5, mm1); /* high - 0A0R0G0B -> mm1(src2) */
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diff changeset
319 punpcklbw_r2r(mm5, mm2); /* low - 0A0R0G0B -> mm2(dst1) */
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320 punpckhbw_r2r(mm5, mm6); /* high - 0A0R0G0B -> mm6(dst2) */
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diff changeset
321
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diff changeset
322 psubw_r2r(mm2, mm0);/* src1 - dst1 -> mm0 */
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diff changeset
323 pmullw_r2r(mm4, mm0); /* mm0 * alpha -> mm0 */
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324 psrlw_i2r(8, mm0); /* mm0 >> 8 -> mm1 */
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diff changeset
325 paddb_r2r(mm0, mm2); /* mm0 + mm2(dst1) -> mm2 */
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diff changeset
326
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diff changeset
327 psubw_r2r(mm6, mm1);/* src2 - dst2 -> mm1 */
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328 pmullw_r2r(mm4, mm1); /* mm1 * alpha -> mm1 */
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diff changeset
329 psrlw_i2r(8, mm1); /* mm1 >> 8 -> mm1 */
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diff changeset
330 paddb_r2r(mm1, mm6); /* mm1 + mm6(dst2) -> mm6 */
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331
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diff changeset
332 packuswb_r2r(mm6, mm2); /* ARGBARGB -> mm2 */
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diff changeset
333 por_r2r(mm7, mm2); /* mm7(dst alpha) | mm2 -> mm2 */
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diff changeset
334
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diff changeset
335 movq_r2m(mm2, *dstp);/* mm2 -> 2 x pixel */
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336
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diff changeset
337 srcp += 2;
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338 dstp += 2;
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339 }, width);
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340 srcp += srcskip;
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341 dstp += dstskip;
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342 }
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343 emms();
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344 }
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345 }
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346
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347 /* fast ARGB888->(A)RGB888 blending with pixel alpha */
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348 static void BlitRGBtoRGBPixelAlphaMMX(SDL_BlitInfo *info)
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349 {
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350 int width = info->d_width;
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351 int height = info->d_height;
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352 Uint32 *srcp = (Uint32 *)info->s_pixels;
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353 int srcskip = info->s_skip >> 2;
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354 Uint32 *dstp = (Uint32 *)info->d_pixels;
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355 int dstskip = info->d_skip >> 2;
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diff changeset
356 SDL_PixelFormat* sf = info->src;
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diff changeset
357 Uint32 amask = sf->Amask;
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diff changeset
358
a8bf1aa21020 Fixed bug #15
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diff changeset
359 pxor_r2r(mm6, mm6); /* 0 -> mm6 */
a8bf1aa21020 Fixed bug #15
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diff changeset
360 /* form multiplication mask */
a8bf1aa21020 Fixed bug #15
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diff changeset
361 movd_m2r(sf->Amask, mm7); /* 0000F000 -> mm7 */
a8bf1aa21020 Fixed bug #15
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diff changeset
362 punpcklbw_r2r(mm7, mm7); /* FF000000 -> mm7 */
a8bf1aa21020 Fixed bug #15
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diff changeset
363 pcmpeqb_r2r(mm0, mm0); /* FFFFFFFF -> mm0 */
a8bf1aa21020 Fixed bug #15
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diff changeset
364 movq_r2r(mm0, mm3); /* FFFFFFFF -> mm3 (for later) */
a8bf1aa21020 Fixed bug #15
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diff changeset
365 pxor_r2r(mm0, mm7); /* 00FFFFFF -> mm7 (mult mask) */
a8bf1aa21020 Fixed bug #15
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diff changeset
366 /* form channel masks */
a8bf1aa21020 Fixed bug #15
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diff changeset
367 movq_r2r(mm7, mm0); /* 00FFFFFF -> mm0 */
a8bf1aa21020 Fixed bug #15
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diff changeset
368 packsswb_r2r(mm6, mm0); /* 00000FFF -> mm0 (channel mask) */
a8bf1aa21020 Fixed bug #15
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diff changeset
369 packsswb_r2r(mm6, mm3); /* 0000FFFF -> mm3 */
a8bf1aa21020 Fixed bug #15
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diff changeset
370 pxor_r2r(mm0, mm3); /* 0000F000 -> mm3 (~channel mask) */
a8bf1aa21020 Fixed bug #15
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diff changeset
371 /* get alpha channel shift */
a8bf1aa21020 Fixed bug #15
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diff changeset
372 movd_m2r(sf->Ashift, mm5); /* Ashift -> mm5 */
a8bf1aa21020 Fixed bug #15
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diff changeset
373
689
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diff changeset
374 while(height--) {
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diff changeset
375 DUFFS_LOOP4({
1542
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diff changeset
376 Uint32 alpha = *srcp & amask;
689
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377 /* FIXME: Here we special-case opaque alpha since the
1542
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diff changeset
378 compositioning used (>>8 instead of /255) doesn't handle
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diff changeset
379 it correctly. Also special-case alpha=0 for speed?
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diff changeset
380 Benchmark this! */
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diff changeset
381 if(alpha == 0) {
a8bf1aa21020 Fixed bug #15
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diff changeset
382 /* do nothing */
a8bf1aa21020 Fixed bug #15
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diff changeset
383 } else if(alpha == amask) {
a8bf1aa21020 Fixed bug #15
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diff changeset
384 /* opaque alpha -- copy RGB, keep dst alpha */
a8bf1aa21020 Fixed bug #15
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diff changeset
385 /* using MMX here to free up regular registers for other things */
a8bf1aa21020 Fixed bug #15
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diff changeset
386 movd_m2r((*srcp), mm1);/* src(ARGB) -> mm1 (0000ARGB)*/
a8bf1aa21020 Fixed bug #15
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diff changeset
387 movd_m2r((*dstp), mm2);/* dst(ARGB) -> mm2 (0000ARGB)*/
a8bf1aa21020 Fixed bug #15
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diff changeset
388 pand_r2r(mm0, mm1); /* src & chanmask -> mm1 */
a8bf1aa21020 Fixed bug #15
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diff changeset
389 pand_r2r(mm3, mm2); /* dst & ~chanmask -> mm2 */
a8bf1aa21020 Fixed bug #15
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diff changeset
390 por_r2r(mm1, mm2); /* src | dst -> mm2 */
a8bf1aa21020 Fixed bug #15
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diff changeset
391 movd_r2m(mm2, (*dstp)); /* mm2 -> dst */
a8bf1aa21020 Fixed bug #15
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diff changeset
392 } else {
a8bf1aa21020 Fixed bug #15
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diff changeset
393 movd_m2r((*srcp), mm1);/* src(ARGB) -> mm1 (0000ARGB)*/
a8bf1aa21020 Fixed bug #15
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diff changeset
394 punpcklbw_r2r(mm6, mm1); /* 0A0R0G0B -> mm1 */
a8bf1aa21020 Fixed bug #15
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diff changeset
395
a8bf1aa21020 Fixed bug #15
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diff changeset
396 movd_m2r((*dstp), mm2);/* dst(ARGB) -> mm2 (0000ARGB)*/
a8bf1aa21020 Fixed bug #15
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diff changeset
397 punpcklbw_r2r(mm6, mm2); /* 0A0R0G0B -> mm2 */
a8bf1aa21020 Fixed bug #15
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diff changeset
398
a8bf1aa21020 Fixed bug #15
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diff changeset
399 __asm__ __volatile__ (
a8bf1aa21020 Fixed bug #15
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diff changeset
400 "movd %0, %%mm4"
a8bf1aa21020 Fixed bug #15
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diff changeset
401 : : "r" (alpha) ); /* 0000A000 -> mm4 */
a8bf1aa21020 Fixed bug #15
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parents: 1487
diff changeset
402 psrld_r2r(mm5, mm4); /* mm4 >> mm5 -> mm4 (0000000A) */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
403 punpcklwd_r2r(mm4, mm4); /* 00000A0A -> mm4 */
a8bf1aa21020 Fixed bug #15
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parents: 1487
diff changeset
404 punpcklwd_r2r(mm4, mm4); /* 0A0A0A0A -> mm4 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
405 pand_r2r(mm7, mm4); /* 000A0A0A -> mm4, preserve dst alpha on add */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
406
a8bf1aa21020 Fixed bug #15
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diff changeset
407 /* blend */
a8bf1aa21020 Fixed bug #15
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parents: 1487
diff changeset
408 psubw_r2r(mm2, mm1);/* src - dst -> mm1 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
409 pmullw_r2r(mm4, mm1); /* mm1 * alpha -> mm1 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
410 psrlw_i2r(8, mm1); /* mm1 >> 8 -> mm1(000R0G0B) */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
411 paddb_r2r(mm1, mm2); /* mm1 + mm2(dst) -> mm2 */
a8bf1aa21020 Fixed bug #15
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parents: 1487
diff changeset
412
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
413 packuswb_r2r(mm6, mm2); /* 0000ARGB -> mm2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
414 movd_r2m(mm2, *dstp);/* mm2 -> dst */
689
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diff changeset
415 }
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diff changeset
416 ++srcp;
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diff changeset
417 ++dstp;
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diff changeset
418 }, width);
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diff changeset
419 srcp += srcskip;
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diff changeset
420 dstp += dstskip;
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diff changeset
421 }
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diff changeset
422 emms();
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diff changeset
423 }
1542
a8bf1aa21020 Fixed bug #15
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diff changeset
424 /* End GCC_ASMBLIT */
a8bf1aa21020 Fixed bug #15
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diff changeset
425
a8bf1aa21020 Fixed bug #15
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parents: 1487
diff changeset
426 #elif MSVC_ASMBLIT
a8bf1aa21020 Fixed bug #15
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diff changeset
427 /* fast RGB888->(A)RGB888 blending with surface alpha=128 special case */
a8bf1aa21020 Fixed bug #15
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diff changeset
428 static void BlitRGBtoRGBSurfaceAlpha128MMX(SDL_BlitInfo *info)
a8bf1aa21020 Fixed bug #15
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diff changeset
429 {
a8bf1aa21020 Fixed bug #15
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diff changeset
430 int width = info->d_width;
a8bf1aa21020 Fixed bug #15
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diff changeset
431 int height = info->d_height;
a8bf1aa21020 Fixed bug #15
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diff changeset
432 Uint32 *srcp = (Uint32 *)info->s_pixels;
a8bf1aa21020 Fixed bug #15
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diff changeset
433 int srcskip = info->s_skip >> 2;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
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diff changeset
434 Uint32 *dstp = (Uint32 *)info->d_pixels;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
435 int dstskip = info->d_skip >> 2;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
436 Uint32 dalpha = info->dst->Amask;
a8bf1aa21020 Fixed bug #15
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diff changeset
437
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
438 __m64 src1, src2, dst1, dst2, lmask, hmask, dsta;
a8bf1aa21020 Fixed bug #15
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parents: 1487
diff changeset
439
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
440 hmask = _mm_set_pi32(0x00fefefe, 0x00fefefe); /* alpha128 mask -> hmask */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
441 lmask = _mm_set_pi32(0x00010101, 0x00010101); /* !alpha128 mask -> lmask */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
442 dsta = _mm_set_pi32(dalpha, dalpha); /* dst alpha mask -> dsta */
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 while (height--) {
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
445 int n = width;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
446 if ( n & 1 ) {
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
447 Uint32 s = *srcp++;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
448 Uint32 d = *dstp;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
449 *dstp++ = ((((s & 0x00fefefe) + (d & 0x00fefefe)) >> 1)
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
450 + (s & d & 0x00010101)) | dalpha;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
451 n--;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
452 }
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
453
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
454 for (n >>= 1; n > 0; --n) {
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
455 dst1 = *(__m64*)dstp; /* 2 x dst -> dst1(ARGBARGB) */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
456 dst2 = dst1; /* 2 x dst -> dst2(ARGBARGB) */
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 src1 = *(__m64*)srcp; /* 2 x src -> src1(ARGBARGB) */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
459 src2 = src1; /* 2 x src -> src2(ARGBARGB) */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
460
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
461 dst2 = _mm_and_si64(dst2, hmask); /* dst & mask -> dst2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
462 src2 = _mm_and_si64(src2, hmask); /* src & mask -> src2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
463 src2 = _mm_add_pi32(src2, dst2); /* dst2 + src2 -> src2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
464 src2 = _mm_srli_pi32(src2, 1); /* src2 >> 1 -> src2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
465
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
466 dst1 = _mm_and_si64(dst1, src1); /* src & dst -> dst1 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
467 dst1 = _mm_and_si64(dst1, lmask); /* dst1 & !mask -> dst1 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
468 dst1 = _mm_add_pi32(dst1, src2); /* src2 + dst1 -> dst1 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
469 dst1 = _mm_or_si64(dst1, dsta); /* dsta(full alpha) | dst1 -> dst1 */
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 *(__m64*)dstp = dst1; /* dst1 -> 2 x dst pixels */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
472 dstp += 2;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
473 srcp += 2;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
474 }
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 srcp += srcskip;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
477 dstp += dstskip;
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 _mm_empty();
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
480 }
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
481
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
482 /* fast RGB888->(A)RGB888 blending with surface alpha */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
483 static void BlitRGBtoRGBSurfaceAlphaMMX(SDL_BlitInfo *info)
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
484 {
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
485 SDL_PixelFormat* df = info->dst;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
486 Uint32 chanmask = df->Rmask | df->Gmask | df->Bmask;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
487 unsigned alpha = info->src->alpha;
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 if (alpha == 128 && (df->Rmask | df->Gmask | df->Bmask) == 0x00FFFFFF) {
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
490 /* only call a128 version when R,G,B occupy lower bits */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
491 BlitRGBtoRGBSurfaceAlpha128MMX(info);
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
492 } else {
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
493 int width = info->d_width;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
494 int height = info->d_height;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
495 Uint32 *srcp = (Uint32 *)info->s_pixels;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
496 int srcskip = info->s_skip >> 2;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
497 Uint32 *dstp = (Uint32 *)info->d_pixels;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
498 int dstskip = info->d_skip >> 2;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
499 Uint32 dalpha = df->Amask;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
500 Uint32 amult;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
501
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
502 __m64 src1, src2, dst1, dst2, mm_alpha, mm_zero, dsta;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
503
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
504 mm_zero = _mm_setzero_si64(); /* 0 -> mm_zero */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
505 /* form the alpha mult */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
506 amult = alpha | (alpha << 8);
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
507 amult = amult | (amult << 16);
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
508 chanmask = (0xff << df->Rshift) | (0xff << df->Gshift) | (0xff << df->Bshift);
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
509 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
510 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
511 /* 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
512 dsta = _mm_set_pi32(dalpha, dalpha); /* dst alpha mask -> dsta */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
513
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
514 while (height--) {
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
515 int n = width;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
516 if (n & 1) {
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
517 /* One Pixel Blend */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
518 src2 = _mm_cvtsi32_si64(*srcp); /* src(ARGB) -> src2 (0000ARGB)*/
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
519 src2 = _mm_unpacklo_pi8(src2, mm_zero); /* 0A0R0G0B -> src2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
520
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
521 dst1 = _mm_cvtsi32_si64(*dstp); /* dst(ARGB) -> dst1 (0000ARGB)*/
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
522 dst1 = _mm_unpacklo_pi8(dst1, mm_zero); /* 0A0R0G0B -> dst1 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
523
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
524 src2 = _mm_sub_pi16(src2, dst1); /* src2 - dst2 -> src2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
525 src2 = _mm_mullo_pi16(src2, mm_alpha); /* src2 * alpha -> src2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
526 src2 = _mm_srli_pi16(src2, 8); /* src2 >> 8 -> src2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
527 dst1 = _mm_add_pi8(src2, dst1); /* src2 + dst1 -> dst1 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
528
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
529 dst1 = _mm_packs_pu16(dst1, mm_zero); /* 0000ARGB -> dst1 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
530 dst1 = _mm_or_si64(dst1, dsta); /* dsta | dst1 -> dst1 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
531 *dstp = _mm_cvtsi64_si32(dst1); /* dst1 -> pixel */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
532
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
533 ++srcp;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
534 ++dstp;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
535
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
536 n--;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
537 }
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 for (n >>= 1; n > 0; --n) {
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
540 /* Two Pixels Blend */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
541 src1 = *(__m64*)srcp; /* 2 x src -> src1(ARGBARGB)*/
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
542 src2 = src1; /* 2 x src -> src2(ARGBARGB) */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
543 src1 = _mm_unpacklo_pi8(src1, mm_zero); /* low - 0A0R0G0B -> src1 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
544 src2 = _mm_unpackhi_pi8(src2, mm_zero); /* high - 0A0R0G0B -> src2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
545
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
546 dst1 = *(__m64*)dstp;/* 2 x dst -> dst1(ARGBARGB) */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
547 dst2 = dst1; /* 2 x dst -> dst2(ARGBARGB) */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
548 dst1 = _mm_unpacklo_pi8(dst1, mm_zero); /* low - 0A0R0G0B -> dst1 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
549 dst2 = _mm_unpackhi_pi8(dst2, mm_zero); /* high - 0A0R0G0B -> dst2 */
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 src1 = _mm_sub_pi16(src1, dst1);/* src1 - dst1 -> src1 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
552 src1 = _mm_mullo_pi16(src1, mm_alpha); /* src1 * alpha -> src1 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
553 src1 = _mm_srli_pi16(src1, 8); /* src1 >> 8 -> src1 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
554 dst1 = _mm_add_pi8(src1, dst1); /* src1 + dst1(dst1) -> dst1 */
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 src2 = _mm_sub_pi16(src2, dst2);/* src2 - dst2 -> src2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
557 src2 = _mm_mullo_pi16(src2, mm_alpha); /* src2 * alpha -> src2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
558 src2 = _mm_srli_pi16(src2, 8); /* src2 >> 8 -> src2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
559 dst2 = _mm_add_pi8(src2, dst2); /* src2 + dst2(dst2) -> dst2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
560
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
561 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
562 dst1 = _mm_or_si64(dst1, dsta); /* dsta | dst1 -> dst1 */
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 *(__m64*)dstp = dst1; /* dst1 -> 2 x pixel */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
565
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
566 srcp += 2;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
567 dstp += 2;
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 srcp += srcskip;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
570 dstp += dstskip;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
571 }
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
572 _mm_empty();
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 }
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
575
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
576 /* fast ARGB888->(A)RGB888 blending with pixel alpha */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
577 static void BlitRGBtoRGBPixelAlphaMMX(SDL_BlitInfo *info)
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 int width = info->d_width;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
580 int height = info->d_height;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
581 Uint32 *srcp = (Uint32 *)info->s_pixels;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
582 int srcskip = info->s_skip >> 2;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
583 Uint32 *dstp = (Uint32 *)info->d_pixels;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
584 int dstskip = info->d_skip >> 2;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
585 SDL_PixelFormat* sf = info->src;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
586 Uint32 chanmask = sf->Rmask | sf->Gmask | sf->Bmask;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
587 Uint32 amask = sf->Amask;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
588 Uint32 ashift = sf->Ashift;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
589 Uint64 multmask;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
590
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
591 __m64 src1, dst1, mm_alpha, mm_zero, dmask;
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 mm_zero = _mm_setzero_si64(); /* 0 -> mm_zero */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
594 multmask = ~(0xFFFFi64 << (ashift * 2));
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
595 dmask = *(__m64*) &multmask; /* dst alpha mask -> dmask */
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 while(height--) {
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
598 DUFFS_LOOP4({
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
599 Uint32 alpha = *srcp & amask;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
600 if (alpha == 0) {
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
601 /* do nothing */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
602 } else if (alpha == amask) {
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
603 /* opaque alpha -- copy RGB, keep dst alpha */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
604 *dstp = (*srcp & chanmask) | (*dstp & ~chanmask);
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
605 } else {
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
606 src1 = _mm_cvtsi32_si64(*srcp); /* src(ARGB) -> src1 (0000ARGB)*/
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
607 src1 = _mm_unpacklo_pi8(src1, mm_zero); /* 0A0R0G0B -> src1 */
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 dst1 = _mm_cvtsi32_si64(*dstp); /* dst(ARGB) -> dst1 (0000ARGB)*/
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
610 dst1 = _mm_unpacklo_pi8(dst1, mm_zero); /* 0A0R0G0B -> dst1 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
611
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
612 mm_alpha = _mm_cvtsi32_si64(alpha); /* alpha -> mm_alpha (0000000A) */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
613 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
614 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
615 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
616 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
617
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
618 /* blend */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
619 src1 = _mm_sub_pi16(src1, dst1);/* src1 - dst1 -> src1 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
620 src1 = _mm_mullo_pi16(src1, mm_alpha); /* (src1 - dst1) * alpha -> src1 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
621 src1 = _mm_srli_pi16(src1, 8); /* src1 >> 8 -> src1(000R0G0B) */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
622 dst1 = _mm_add_pi8(src1, dst1); /* src1 + dst1 -> dst1(0A0R0G0B) */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
623 dst1 = _mm_packs_pu16(dst1, mm_zero); /* 0000ARGB -> dst1 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
624
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
625 *dstp = _mm_cvtsi64_si32(dst1); /* dst1 -> pixel */
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 ++srcp;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
628 ++dstp;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
629 }, width);
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
630 srcp += srcskip;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
631 dstp += dstskip;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
632 }
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
633 _mm_empty();
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
634 }
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
635 /* End MSVC_ASMBLIT */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
636
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
637 #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
638
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
639 #if SDL_ALTIVEC_BLITTERS
1795
398ac0f88e4d Fixed bug #220
Sam Lantinga <slouken@libsdl.org>
parents: 1617
diff changeset
640 #if __MWERKS__
398ac0f88e4d Fixed bug #220
Sam Lantinga <slouken@libsdl.org>
parents: 1617
diff changeset
641 #pragma altivec_model on
398ac0f88e4d Fixed bug #220
Sam Lantinga <slouken@libsdl.org>
parents: 1617
diff changeset
642 #endif
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
643 #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
644 #include <altivec.h>
1175
867f521591e5 Fixed Altivec support on Mac OS X.
Ryan C. Gordon <icculus@icculus.org>
parents: 1162
diff changeset
645 #endif
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
646 #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
647
1402
d910939febfa Use consistent identifiers for the various platforms we support.
Sam Lantinga <slouken@libsdl.org>
parents: 1361
diff changeset
648 #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
649 #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
650 (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
651 #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
652 (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
653 #else
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents: 1047
diff changeset
654 #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
655 (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
656 #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
657 (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
658 #endif
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents: 1047
diff changeset
659
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
660 #define UNALIGNED_PTR(x) (((size_t) x) & 0x0000000F)
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
661 #define VECPRINT(msg, v) do { \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
662 vector unsigned int tmpvec = (vector unsigned int)(v); \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
663 unsigned int *vp = (unsigned int *)&tmpvec; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
664 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
665 } while (0)
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
666
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
667 /* 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
668 (vector unsigned char)(
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
669 0x00, 0x10, 0x02, 0x12,
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
670 0x04, 0x14, 0x06, 0x16,
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
671 0x08, 0x18, 0x0A, 0x1A,
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
672 0x0C, 0x1C, 0x0E, 0x1E );
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
673 */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
674 #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
675 #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
676 #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
677 #define VEC_ALIGNER(src) ((UNALIGNED_PTR(src)) \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
678 ? vec_lvsl(0, src) \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
679 : vec_add(vec_lvsl(8, src), vec_splat_u8(8)))
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
680
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
681
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
682 #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
683 /* vtemp1 contains source AAGGAAGGAAGGAAGG */ \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
684 vector unsigned short vtemp1 = vec_mule(vs, valpha); \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
685 /* vtemp2 contains source RRBBRRBBRRBBRRBB */ \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
686 vector unsigned short vtemp2 = vec_mulo(vs, valpha); \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
687 /* valpha2 is 255-alpha */ \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
688 vector unsigned char valpha2 = vec_nor(valpha, valpha); \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
689 /* vtemp3 contains dest AAGGAAGGAAGGAAGG */ \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
690 vector unsigned short vtemp3 = vec_mule(vd, valpha2); \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
691 /* vtemp4 contains dest RRBBRRBBRRBBRRBB */ \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
692 vector unsigned short vtemp4 = vec_mulo(vd, valpha2); \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
693 /* add source and dest */ \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
694 vtemp1 = vec_add(vtemp1, vtemp3); \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
695 vtemp2 = vec_add(vtemp2, vtemp4); \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
696 /* vtemp1 = (vtemp1 + 1) + ((vtemp1 + 1) >> 8) */ \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
697 vtemp1 = vec_add(vtemp1, v1_16); \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
698 vtemp3 = vec_sr(vtemp1, v8_16); \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
699 vtemp1 = vec_add(vtemp1, vtemp3); \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
700 /* vtemp2 = (vtemp2 + 1) + ((vtemp2 + 1) >> 8) */ \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
701 vtemp2 = vec_add(vtemp2, v1_16); \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
702 vtemp4 = vec_sr(vtemp2, v8_16); \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
703 vtemp2 = vec_add(vtemp2, vtemp4); \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
704 /* (>>8) and get ARGBARGBARGBARGB */ \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
705 vd = (vector unsigned char)vec_perm(vtemp1, vtemp2, mergePermute); \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
706 } while (0)
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
707
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
708 /* Calculate the permute vector used for 32->32 swizzling */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
709 static vector unsigned char calc_swizzle32(const SDL_PixelFormat *srcfmt,
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
710 const SDL_PixelFormat *dstfmt)
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
711 {
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
712 /*
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
713 * 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
714 * 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
715 * 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
716 */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
717 /* ARGB */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
718 const static struct SDL_PixelFormat default_pixel_format = {
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
719 NULL, 0, 0,
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
720 0, 0, 0, 0,
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
721 16, 8, 0, 24,
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
722 0x00FF0000, 0x0000FF00, 0x000000FF, 0xFF000000,
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
723 0, 0};
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
724 if (!srcfmt) {
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
725 srcfmt = &default_pixel_format;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
726 }
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
727 if (!dstfmt) {
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
728 dstfmt = &default_pixel_format;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
729 }
1487
dc6b59e925a2 Cleaning up warnings on MacOS X
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
730 const vector unsigned char plus = VECUINT8_LITERAL
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
731 ( 0x00, 0x00, 0x00, 0x00,
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
732 0x04, 0x04, 0x04, 0x04,
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
733 0x08, 0x08, 0x08, 0x08,
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
734 0x0C, 0x0C, 0x0C, 0x0C );
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
735 vector unsigned char vswiz;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
736 vector unsigned int srcvec;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
737 #define RESHIFT(X) (3 - ((X) >> 3))
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
738 Uint32 rmask = RESHIFT(srcfmt->Rshift) << (dstfmt->Rshift);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
739 Uint32 gmask = RESHIFT(srcfmt->Gshift) << (dstfmt->Gshift);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
740 Uint32 bmask = RESHIFT(srcfmt->Bshift) << (dstfmt->Bshift);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
741 Uint32 amask;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
742 /* 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
743 if (dstfmt->Amask) {
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
744 amask = ((srcfmt->Amask) ? RESHIFT(srcfmt->Ashift) : 0x10) << (dstfmt->Ashift);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
745 } else {
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
746 amask = 0x10101010 & ((dstfmt->Rmask | dstfmt->Gmask | dstfmt->Bmask) ^ 0xFFFFFFFF);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
747 }
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
748 #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
749 ((unsigned int *)(char*)&srcvec)[0] = (rmask | gmask | bmask | amask);
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
750 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
751 return(vswiz);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
752 }
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
753
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
754 static void Blit32to565PixelAlphaAltivec(SDL_BlitInfo *info)
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
755 {
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
756 int height = info->d_height;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
757 Uint8 *src = (Uint8 *)info->s_pixels;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
758 int srcskip = info->s_skip;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
759 Uint8 *dst = (Uint8 *)info->d_pixels;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
760 int dstskip = info->d_skip;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
761 SDL_PixelFormat *srcfmt = info->src;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
762
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
763 vector unsigned char v0 = vec_splat_u8(0);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
764 vector unsigned short v8_16 = vec_splat_u16(8);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
765 vector unsigned short v1_16 = vec_splat_u16(1);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
766 vector unsigned short v2_16 = vec_splat_u16(2);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
767 vector unsigned short v3_16 = vec_splat_u16(3);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
768 vector unsigned int v8_32 = vec_splat_u32(8);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
769 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
770 vector unsigned short v3f = VECUINT16_LITERAL(
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
771 0x003f, 0x003f, 0x003f, 0x003f,
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
772 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
773 vector unsigned short vfc = VECUINT16_LITERAL(
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
774 0x00fc, 0x00fc, 0x00fc, 0x00fc,
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
775 0x00fc, 0x00fc, 0x00fc, 0x00fc);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
776
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
777 /*
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
778 0x10 - 0x1f is the alpha
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
779 0x00 - 0x0e evens are the red
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
780 0x01 - 0x0f odds are zero
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
781 */
1162
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents: 1047
diff changeset
782 vector unsigned char vredalpha1 = VECUINT8_LITERAL(
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
783 0x10, 0x00, 0x01, 0x01,
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
784 0x10, 0x02, 0x01, 0x01,
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
785 0x10, 0x04, 0x01, 0x01,
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
786 0x10, 0x06, 0x01, 0x01
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
787 );
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
788 vector unsigned char vredalpha2 = (vector unsigned char)(
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
789 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
790 );
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
791 /*
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
792 0x00 - 0x0f is ARxx ARxx ARxx ARxx
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
793 0x11 - 0x0f odds are blue
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
794 */
1162
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents: 1047
diff changeset
795 vector unsigned char vblue1 = VECUINT8_LITERAL(
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
796 0x00, 0x01, 0x02, 0x11,
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
797 0x04, 0x05, 0x06, 0x13,
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
798 0x08, 0x09, 0x0a, 0x15,
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
799 0x0c, 0x0d, 0x0e, 0x17
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
800 );
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
801 vector unsigned char vblue2 = (vector unsigned char)(
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
802 vec_add((vector unsigned int)vblue1, v8_32)
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
803 );
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
804 /*
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
805 0x00 - 0x0f is ARxB ARxB ARxB ARxB
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
806 0x10 - 0x0e evens are green
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
807 */
1162
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents: 1047
diff changeset
808 vector unsigned char vgreen1 = VECUINT8_LITERAL(
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
809 0x00, 0x01, 0x10, 0x03,
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
810 0x04, 0x05, 0x12, 0x07,
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
811 0x08, 0x09, 0x14, 0x0b,
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
812 0x0c, 0x0d, 0x16, 0x0f
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
813 );
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
814 vector unsigned char vgreen2 = (vector unsigned char)(
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
815 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
816 );
1162
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents: 1047
diff changeset
817 vector unsigned char vgmerge = VECUINT8_LITERAL(
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
818 0x00, 0x02, 0x00, 0x06,
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
819 0x00, 0x0a, 0x00, 0x0e,
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
820 0x00, 0x12, 0x00, 0x16,
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
821 0x00, 0x1a, 0x00, 0x1e);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
822 vector unsigned char mergePermute = VEC_MERGE_PERMUTE();
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
823 vector unsigned char vpermute = calc_swizzle32(srcfmt, NULL);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
824 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
825
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
826 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
827 vf800 = vec_sl(vf800, vec_splat_u16(8));
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
828
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
829 while(height--) {
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
830 int extrawidth;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
831 vector unsigned char valigner;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
832 vector unsigned char vsrc;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
833 vector unsigned char voverflow;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
834 int width = info->d_width;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
835
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
836 #define ONE_PIXEL_BLEND(condition, widthvar) \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
837 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
838 Uint32 Pixel; \
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
839 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
840 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
841 if(sA) { \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
842 unsigned short dstpixel = *((unsigned short *)dst); \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
843 dR = (dstpixel >> 8) & 0xf8; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
844 dG = (dstpixel >> 3) & 0xfc; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
845 dB = (dstpixel << 3) & 0xf8; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
846 ACCURATE_ALPHA_BLEND(sR, sG, sB, sA, dR, dG, dB); \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
847 *((unsigned short *)dst) = ( \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
848 ((dR & 0xf8) << 8) | ((dG & 0xfc) << 3) | (dB >> 3) \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
849 ); \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
850 } \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
851 src += 4; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
852 dst += 2; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
853 widthvar--; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
854 }
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
855 ONE_PIXEL_BLEND((UNALIGNED_PTR(dst)) && (width), width);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
856 extrawidth = (width % 8);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
857 valigner = VEC_ALIGNER(src);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
858 vsrc = (vector unsigned char)vec_ld(0, src);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
859 width -= extrawidth;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
860 while (width) {
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
861 vector unsigned char valpha;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
862 vector unsigned char vsrc1, vsrc2;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
863 vector unsigned char vdst1, vdst2;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
864 vector unsigned short vR, vG, vB;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
865 vector unsigned short vpixel, vrpixel, vgpixel, vbpixel;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
866
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
867 /* Load 8 pixels from src as ARGB */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
868 voverflow = (vector unsigned char)vec_ld(15, src);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
869 vsrc = vec_perm(vsrc, voverflow, valigner);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
870 vsrc1 = vec_perm(vsrc, vsrc, vpermute);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
871 src += 16;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
872 vsrc = (vector unsigned char)vec_ld(15, src);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
873 voverflow = vec_perm(voverflow, vsrc, valigner);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
874 vsrc2 = vec_perm(voverflow, voverflow, vpermute);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
875 src += 16;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
876
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
877 /* Load 8 pixels from dst as XRGB */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
878 voverflow = vec_ld(0, dst);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
879 vR = vec_and((vector unsigned short)voverflow, vf800);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
880 vB = vec_sl((vector unsigned short)voverflow, v3_16);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
881 vG = vec_sl(vB, v2_16);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
882 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
883 vdst1 = vec_perm(vdst1, (vector unsigned char)vB, vblue1);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
884 vdst1 = vec_perm(vdst1, (vector unsigned char)vG, vgreen1);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
885 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
886 vdst2 = vec_perm(vdst2, (vector unsigned char)vB, vblue2);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
887 vdst2 = vec_perm(vdst2, (vector unsigned char)vG, vgreen2);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
888
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
889 /* Alpha blend 8 pixels as ARGB */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
890 valpha = vec_perm(vsrc1, v0, valphaPermute);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
891 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
892 valpha = vec_perm(vsrc2, v0, valphaPermute);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
893 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
894
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
895 /* Convert 8 pixels to 565 */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
896 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
897 vgpixel = (vector unsigned short)vec_perm(vdst1, vdst2, vgmerge);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
898 vgpixel = vec_and(vgpixel, vfc);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
899 vgpixel = vec_sl(vgpixel, v3_16);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
900 vrpixel = vec_sl(vpixel, v1_16);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
901 vrpixel = vec_and(vrpixel, vf800);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
902 vbpixel = vec_and(vpixel, v3f);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
903 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
904 vdst1 = vec_or(vdst1, (vector unsigned char)vbpixel);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
905
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
906 /* Store 8 pixels */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
907 vec_st(vdst1, 0, dst);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
908
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
909 width -= 8;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
910 dst += 16;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
911 }
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
912 ONE_PIXEL_BLEND((extrawidth), extrawidth);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
913 #undef ONE_PIXEL_BLEND
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
914 src += srcskip;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
915 dst += dstskip;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
916 }
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
917 }
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
918
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
919 static void Blit32to32SurfaceAlphaKeyAltivec(SDL_BlitInfo *info)
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
920 {
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
921 unsigned alpha = info->src->alpha;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
922 int height = info->d_height;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
923 Uint32 *srcp = (Uint32 *)info->s_pixels;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
924 int srcskip = info->s_skip >> 2;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
925 Uint32 *dstp = (Uint32 *)info->d_pixels;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
926 int dstskip = info->d_skip >> 2;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
927 SDL_PixelFormat *srcfmt = info->src;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
928 SDL_PixelFormat *dstfmt = info->dst;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
929 unsigned sA = srcfmt->alpha;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
930 unsigned dA = dstfmt->Amask ? SDL_ALPHA_OPAQUE : 0;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
931 Uint32 rgbmask = srcfmt->Rmask | srcfmt->Gmask | srcfmt->Bmask;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
932 Uint32 ckey = info->src->colorkey;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
933 vector unsigned char mergePermute;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
934 vector unsigned char vsrcPermute;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
935 vector unsigned char vdstPermute;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
936 vector unsigned char vsdstPermute;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
937 vector unsigned char valpha;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
938 vector unsigned char valphamask;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
939 vector unsigned char vbits;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
940 vector unsigned char v0;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
941 vector unsigned short v1;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
942 vector unsigned short v8;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
943 vector unsigned int vckey;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
944 vector unsigned int vrgbmask;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
945
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
946 mergePermute = VEC_MERGE_PERMUTE();
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
947 v0 = vec_splat_u8(0);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
948 v1 = vec_splat_u16(1);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
949 v8 = vec_splat_u16(8);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
950
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
951 /* set the alpha to 255 on the destination surf */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
952 valphamask = VEC_ALPHA_MASK();
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
953
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
954 vsrcPermute = calc_swizzle32(srcfmt, NULL);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
955 vdstPermute = calc_swizzle32(NULL, dstfmt);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
956 vsdstPermute = calc_swizzle32(dstfmt, NULL);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
957
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
958 /* set a vector full of alpha and 255-alpha */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
959 ((unsigned char *)&valpha)[0] = alpha;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
960 valpha = vec_splat(valpha, 0);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
961 vbits = (vector unsigned char)vec_splat_s8(-1);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
962
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
963 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
964 ((unsigned int *)(char*)&vckey)[0] = ckey;
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
965 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
966 ((unsigned int *)(char*)&vrgbmask)[0] = rgbmask;
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
967 vrgbmask = vec_splat(vrgbmask, 0);
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 while(height--) {
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
970 int width = info->d_width;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
971 #define ONE_PIXEL_BLEND(condition, widthvar) \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
972 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
973 Uint32 Pixel; \
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
974 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
975 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
976 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
977 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
978 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
979 ACCURATE_ALPHA_BLEND(sR, sG, sB, sA, dR, dG, dB); \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
980 ASSEMBLE_RGBA(((Uint8 *)dstp), 4, dstfmt, dR, dG, dB, dA); \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
981 } \
1162
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents: 1047
diff changeset
982 dstp++; \
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents: 1047
diff changeset
983 srcp++; \
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
984 widthvar--; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
985 }
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
986 ONE_PIXEL_BLEND((UNALIGNED_PTR(dstp)) && (width), width);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
987 if (width > 0) {
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
988 int extrawidth = (width % 4);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
989 vector unsigned char valigner = VEC_ALIGNER(srcp);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
990 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
991 width -= extrawidth;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
992 while (width) {
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
993 vector unsigned char vsel;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
994 vector unsigned char voverflow;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
995 vector unsigned char vd;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
996 vector unsigned char vd_orig;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
997
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
998 /* s = *srcp */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
999 voverflow = (vector unsigned char)vec_ld(15, srcp);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1000 vs = vec_perm(vs, voverflow, valigner);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1001
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1002 /* vsel is set for items that match the key */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1003 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
1004 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
1005
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1006 /* permute to source format */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1007 vs = vec_perm(vs, valpha, vsrcPermute);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1008
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1009 /* d = *dstp */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1010 vd = (vector unsigned char)vec_ld(0, dstp);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1011 vd_orig = vd = vec_perm(vd, v0, vsdstPermute);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1012
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1013 VEC_MULTIPLY_ALPHA(vs, vd, valpha, mergePermute, v1, v8);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1014
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1015 /* set the alpha channel to full on */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1016 vd = vec_or(vd, valphamask);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1017
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1018 /* mask out color key */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1019 vd = vec_sel(vd, vd_orig, vsel);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1020
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1021 /* permute to dest format */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1022 vd = vec_perm(vd, vbits, vdstPermute);
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 /* *dstp = res */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1025 vec_st((vector unsigned int)vd, 0, dstp);
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 srcp += 4;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1028 dstp += 4;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1029 width -= 4;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1030 vs = voverflow;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1031 }
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1032 ONE_PIXEL_BLEND((extrawidth), extrawidth);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1033 }
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1034 #undef ONE_PIXEL_BLEND
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 srcp += srcskip;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1037 dstp += dstskip;
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 }
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1040
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 static void Blit32to32PixelAlphaAltivec(SDL_BlitInfo *info)
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1043 {
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1044 int width = info->d_width;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1045 int height = info->d_height;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1046 Uint32 *srcp = (Uint32 *)info->s_pixels;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1047 int srcskip = info->s_skip >> 2;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1048 Uint32 *dstp = (Uint32 *)info->d_pixels;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1049 int dstskip = info->d_skip >> 2;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1050 SDL_PixelFormat *srcfmt = info->src;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1051 SDL_PixelFormat *dstfmt = info->dst;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1052 vector unsigned char mergePermute;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1053 vector unsigned char valphaPermute;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1054 vector unsigned char vsrcPermute;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1055 vector unsigned char vdstPermute;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1056 vector unsigned char vsdstPermute;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1057 vector unsigned char valphamask;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1058 vector unsigned char vpixelmask;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1059 vector unsigned char v0;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1060 vector unsigned short v1;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1061 vector unsigned short v8;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1062
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1063 v0 = vec_splat_u8(0);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1064 v1 = vec_splat_u16(1);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1065 v8 = vec_splat_u16(8);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1066 mergePermute = VEC_MERGE_PERMUTE();
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1067 valphamask = VEC_ALPHA_MASK();
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1068 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
1069 vpixelmask = vec_nor(valphamask, v0);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1070 vsrcPermute = calc_swizzle32(srcfmt, NULL);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1071 vdstPermute = calc_swizzle32(NULL, dstfmt);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1072 vsdstPermute = calc_swizzle32(dstfmt, NULL);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1073
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1074 while ( height-- ) {
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1075 width = info->d_width;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1076 #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
1077 Uint32 Pixel; \
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1078 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
1079 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
1080 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
1081 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
1082 ACCURATE_ALPHA_BLEND(sR, sG, sB, sA, dR, dG, dB); \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1083 ASSEMBLE_RGBA((Uint8 *)dstp, 4, dstfmt, dR, dG, dB, dA); \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1084 } \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1085 ++srcp; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1086 ++dstp; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1087 widthvar--; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1088 }
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1089 ONE_PIXEL_BLEND((UNALIGNED_PTR(dstp)) && (width), width);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1090 if (width > 0) {
1487
dc6b59e925a2 Cleaning up warnings on MacOS X
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
1091 /* vsrcPermute */
dc6b59e925a2 Cleaning up warnings on MacOS X
Sam Lantinga <slouken@libsdl.org>
parents: 1456
diff changeset
1092 /* vdstPermute */
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1093 int extrawidth = (width % 4);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1094 vector unsigned char valigner = VEC_ALIGNER(srcp);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1095 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
1096 width -= extrawidth;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1097 while (width) {
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1098 vector unsigned char voverflow;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1099 vector unsigned char vd;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1100 vector unsigned char valpha;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1101 vector unsigned char vdstalpha;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1102 /* s = *srcp */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1103 voverflow = (vector unsigned char)vec_ld(15, srcp);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1104 vs = vec_perm(vs, voverflow, valigner);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1105 vs = vec_perm(vs, v0, vsrcPermute);
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 valpha = vec_perm(vs, v0, valphaPermute);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1108
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1109 /* d = *dstp */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1110 vd = (vector unsigned char)vec_ld(0, dstp);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1111 vd = vec_perm(vd, v0, vsdstPermute);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1112 vdstalpha = vec_and(vd, valphamask);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1113
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1114 VEC_MULTIPLY_ALPHA(vs, vd, valpha, mergePermute, v1, v8);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1115
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1116 /* set the alpha to the dest alpha */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1117 vd = vec_and(vd, vpixelmask);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1118 vd = vec_or(vd, vdstalpha);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1119 vd = vec_perm(vd, v0, vdstPermute);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1120
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1121 /* *dstp = res */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1122 vec_st((vector unsigned int)vd, 0, dstp);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1123
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1124 srcp += 4;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1125 dstp += 4;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1126 width -= 4;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1127 vs = voverflow;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1128
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1129 }
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1130 ONE_PIXEL_BLEND((extrawidth), extrawidth);
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 srcp += srcskip;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1133 dstp += dstskip;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1134 #undef ONE_PIXEL_BLEND
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1135 }
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1136 }
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1137
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1138 /* fast ARGB888->(A)RGB888 blending with pixel alpha */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1139 static void BlitRGBtoRGBPixelAlphaAltivec(SDL_BlitInfo *info)
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1140 {
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1141 int width = info->d_width;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1142 int height = info->d_height;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1143 Uint32 *srcp = (Uint32 *)info->s_pixels;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1144 int srcskip = info->s_skip >> 2;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1145 Uint32 *dstp = (Uint32 *)info->d_pixels;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1146 int dstskip = info->d_skip >> 2;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1147 vector unsigned char mergePermute;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1148 vector unsigned char valphaPermute;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1149 vector unsigned char valphamask;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1150 vector unsigned char vpixelmask;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1151 vector unsigned char v0;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1152 vector unsigned short v1;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1153 vector unsigned short v8;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1154 v0 = vec_splat_u8(0);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1155 v1 = vec_splat_u16(1);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1156 v8 = vec_splat_u16(8);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1157 mergePermute = VEC_MERGE_PERMUTE();
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1158 valphamask = VEC_ALPHA_MASK();
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1159 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
1160
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1161
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1162 vpixelmask = vec_nor(valphamask, v0);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1163 while(height--) {
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1164 width = info->d_width;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1165 #define ONE_PIXEL_BLEND(condition, widthvar) \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1166 while ((condition)) { \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1167 Uint32 dalpha; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1168 Uint32 d; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1169 Uint32 s1; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1170 Uint32 d1; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1171 Uint32 s = *srcp; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1172 Uint32 alpha = s >> 24; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1173 if(alpha) { \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1174 if(alpha == SDL_ALPHA_OPAQUE) { \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1175 *dstp = (s & 0x00ffffff) | (*dstp & 0xff000000); \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1176 } else { \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1177 d = *dstp; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1178 dalpha = d & 0xff000000; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1179 s1 = s & 0xff00ff; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1180 d1 = d & 0xff00ff; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1181 d1 = (d1 + ((s1 - d1) * alpha >> 8)) & 0xff00ff; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1182 s &= 0xff00; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1183 d &= 0xff00; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1184 d = (d + ((s - d) * alpha >> 8)) & 0xff00; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1185 *dstp = d1 | d | dalpha; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1186 } \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1187 } \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1188 ++srcp; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1189 ++dstp; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1190 widthvar--; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1191 }
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1192 ONE_PIXEL_BLEND((UNALIGNED_PTR(dstp)) && (width), width);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1193 if (width > 0) {
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1194 int extrawidth = (width % 4);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1195 vector unsigned char valigner = VEC_ALIGNER(srcp);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1196 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
1197 width -= extrawidth;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1198 while (width) {
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1199 vector unsigned char voverflow;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1200 vector unsigned char vd;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1201 vector unsigned char valpha;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1202 vector unsigned char vdstalpha;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1203 /* s = *srcp */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1204 voverflow = (vector unsigned char)vec_ld(15, srcp);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1205 vs = vec_perm(vs, voverflow, valigner);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1206
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1207 valpha = vec_perm(vs, v0, valphaPermute);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1208
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1209 /* d = *dstp */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1210 vd = (vector unsigned char)vec_ld(0, dstp);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1211 vdstalpha = vec_and(vd, valphamask);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1212
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1213 VEC_MULTIPLY_ALPHA(vs, vd, valpha, mergePermute, v1, v8);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1214
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1215 /* set the alpha to the dest alpha */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1216 vd = vec_and(vd, vpixelmask);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1217 vd = vec_or(vd, vdstalpha);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1218
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1219 /* *dstp = res */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1220 vec_st((vector unsigned int)vd, 0, dstp);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1221
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1222 srcp += 4;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1223 dstp += 4;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1224 width -= 4;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1225 vs = voverflow;
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 ONE_PIXEL_BLEND((extrawidth), extrawidth);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1228 }
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1229 srcp += srcskip;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1230 dstp += dstskip;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1231 }
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1232 #undef ONE_PIXEL_BLEND
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1233 }
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1234
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1235 static void Blit32to32SurfaceAlphaAltivec(SDL_BlitInfo *info)
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 /* XXX : 6 */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1238 unsigned alpha = info->src->alpha;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1239 int height = info->d_height;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1240 Uint32 *srcp = (Uint32 *)info->s_pixels;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1241 int srcskip = info->s_skip >> 2;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1242 Uint32 *dstp = (Uint32 *)info->d_pixels;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1243 int dstskip = info->d_skip >> 2;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1244 SDL_PixelFormat *srcfmt = info->src;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1245 SDL_PixelFormat *dstfmt = info->dst;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1246 unsigned sA = srcfmt->alpha;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1247 unsigned dA = dstfmt->Amask ? SDL_ALPHA_OPAQUE : 0;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1248 vector unsigned char mergePermute;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1249 vector unsigned char vsrcPermute;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1250 vector unsigned char vdstPermute;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1251 vector unsigned char vsdstPermute;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1252 vector unsigned char valpha;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1253 vector unsigned char valphamask;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1254 vector unsigned char vbits;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1255 vector unsigned short v1;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1256 vector unsigned short v8;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1257
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1258 mergePermute = VEC_MERGE_PERMUTE();
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1259 v1 = vec_splat_u16(1);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1260 v8 = vec_splat_u16(8);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1261
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1262 /* set the alpha to 255 on the destination surf */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1263 valphamask = VEC_ALPHA_MASK();
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1264
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1265 vsrcPermute = calc_swizzle32(srcfmt, NULL);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1266 vdstPermute = calc_swizzle32(NULL, dstfmt);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1267 vsdstPermute = calc_swizzle32(dstfmt, NULL);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1268
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1269 /* set a vector full of alpha and 255-alpha */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1270 ((unsigned char *)&valpha)[0] = alpha;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1271 valpha = vec_splat(valpha, 0);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1272 vbits = (vector unsigned char)vec_splat_s8(-1);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1273
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1274 while(height--) {
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1275 int width = info->d_width;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1276 #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
1277 Uint32 Pixel; \
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1278 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
1279 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
1280 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
1281 ACCURATE_ALPHA_BLEND(sR, sG, sB, sA, dR, dG, dB); \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1282 ASSEMBLE_RGBA(((Uint8 *)dstp), 4, dstfmt, dR, dG, dB, dA); \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1283 ++srcp; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1284 ++dstp; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1285 widthvar--; \
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 ONE_PIXEL_BLEND((UNALIGNED_PTR(dstp)) && (width), width);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1288 if (width > 0) {
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1289 int extrawidth = (width % 4);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1290 vector unsigned char valigner = vec_lvsl(0, srcp);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1291 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
1292 width -= extrawidth;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1293 while (width) {
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1294 vector unsigned char voverflow;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1295 vector unsigned char vd;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1296
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1297 /* s = *srcp */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1298 voverflow = (vector unsigned char)vec_ld(15, srcp);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1299 vs = vec_perm(vs, voverflow, valigner);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1300 vs = vec_perm(vs, valpha, vsrcPermute);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1301
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1302 /* d = *dstp */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1303 vd = (vector unsigned char)vec_ld(0, dstp);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1304 vd = vec_perm(vd, vd, vsdstPermute);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1305
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1306 VEC_MULTIPLY_ALPHA(vs, vd, valpha, mergePermute, v1, v8);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1307
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1308 /* set the alpha channel to full on */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1309 vd = vec_or(vd, valphamask);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1310 vd = vec_perm(vd, vbits, vdstPermute);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1311
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1312 /* *dstp = res */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1313 vec_st((vector unsigned int)vd, 0, dstp);
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 srcp += 4;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1316 dstp += 4;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1317 width -= 4;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1318 vs = voverflow;
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 ONE_PIXEL_BLEND((extrawidth), extrawidth);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1321 }
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1322 #undef ONE_PIXEL_BLEND
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 srcp += srcskip;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1325 dstp += dstskip;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1326 }
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1327
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1328 }
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
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1331 /* fast RGB888->(A)RGB888 blending */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1332 static void BlitRGBtoRGBSurfaceAlphaAltivec(SDL_BlitInfo *info)
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1333 {
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1334 unsigned alpha = info->src->alpha;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1335 int height = info->d_height;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1336 Uint32 *srcp = (Uint32 *)info->s_pixels;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1337 int srcskip = info->s_skip >> 2;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1338 Uint32 *dstp = (Uint32 *)info->d_pixels;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1339 int dstskip = info->d_skip >> 2;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1340 vector unsigned char mergePermute;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1341 vector unsigned char valpha;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1342 vector unsigned char valphamask;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1343 vector unsigned short v1;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1344 vector unsigned short v8;
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 mergePermute = VEC_MERGE_PERMUTE();
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1347 v1 = vec_splat_u16(1);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1348 v8 = vec_splat_u16(8);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1349
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1350 /* set the alpha to 255 on the destination surf */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1351 valphamask = VEC_ALPHA_MASK();
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1352
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1353 /* set a vector full of alpha and 255-alpha */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1354 ((unsigned char *)&valpha)[0] = alpha;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1355 valpha = vec_splat(valpha, 0);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1356
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1357 while(height--) {
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1358 int width = info->d_width;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1359 #define ONE_PIXEL_BLEND(condition, widthvar) while ((condition)) { \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1360 Uint32 s = *srcp; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1361 Uint32 d = *dstp; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1362 Uint32 s1 = s & 0xff00ff; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1363 Uint32 d1 = d & 0xff00ff; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1364 d1 = (d1 + ((s1 - d1) * alpha >> 8)) \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1365 & 0xff00ff; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1366 s &= 0xff00; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1367 d &= 0xff00; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1368 d = (d + ((s - d) * alpha >> 8)) & 0xff00; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1369 *dstp = d1 | d | 0xff000000; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1370 ++srcp; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1371 ++dstp; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1372 widthvar--; \
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1373 }
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1374 ONE_PIXEL_BLEND((UNALIGNED_PTR(dstp)) && (width), width);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1375 if (width > 0) {
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1376 int extrawidth = (width % 4);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1377 vector unsigned char valigner = VEC_ALIGNER(srcp);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1378 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
1379 width -= extrawidth;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1380 while (width) {
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1381 vector unsigned char voverflow;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1382 vector unsigned char vd;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1383
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1384 /* s = *srcp */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1385 voverflow = (vector unsigned char)vec_ld(15, srcp);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1386 vs = vec_perm(vs, voverflow, valigner);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1387
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1388 /* d = *dstp */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1389 vd = (vector unsigned char)vec_ld(0, dstp);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1390
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1391 VEC_MULTIPLY_ALPHA(vs, vd, valpha, mergePermute, v1, v8);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1392
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1393 /* set the alpha channel to full on */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1394 vd = vec_or(vd, valphamask);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1395
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1396 /* *dstp = res */
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1397 vec_st((vector unsigned int)vd, 0, dstp);
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1398
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1399 srcp += 4;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1400 dstp += 4;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1401 width -= 4;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1402 vs = voverflow;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1403 }
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1404 ONE_PIXEL_BLEND((extrawidth), extrawidth);
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 #undef ONE_PIXEL_BLEND
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1407
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1408 srcp += srcskip;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1409 dstp += dstskip;
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 }
1795
398ac0f88e4d Fixed bug #220
Sam Lantinga <slouken@libsdl.org>
parents: 1617
diff changeset
1412 #if __MWERKS__
398ac0f88e4d Fixed bug #220
Sam Lantinga <slouken@libsdl.org>
parents: 1617
diff changeset
1413 #pragma altivec_model off
398ac0f88e4d Fixed bug #220
Sam Lantinga <slouken@libsdl.org>
parents: 1617
diff changeset
1414 #endif
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
1415 #endif /* SDL_ALTIVEC_BLITTERS */
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
1416
1
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1417 /* 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
1418 static void BlitRGBtoRGBSurfaceAlpha128(SDL_BlitInfo *info)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1419 {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1420 int width = info->d_width;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1421 int height = info->d_height;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1422 Uint32 *srcp = (Uint32 *)info->s_pixels;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1423 int srcskip = info->s_skip >> 2;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1424 Uint32 *dstp = (Uint32 *)info->d_pixels;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1425 int dstskip = info->d_skip >> 2;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1426
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1427 while(height--) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1428 DUFFS_LOOP4({
1
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1429 Uint32 s = *srcp++;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1430 Uint32 d = *dstp;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1431 *dstp++ = ((((s & 0x00fefefe) + (d & 0x00fefefe)) >> 1)
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1432 + (s & d & 0x00010101)) | 0xff000000;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1433 }, width);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1434 srcp += srcskip;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1435 dstp += dstskip;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1436 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1437 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1438
1
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1439 /* 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
1440 static void BlitRGBtoRGBSurfaceAlpha(SDL_BlitInfo *info)
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1441 {
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1442 unsigned alpha = info->src->alpha;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1443 if(alpha == 128) {
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1444 BlitRGBtoRGBSurfaceAlpha128(info);
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1445 } else {
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1446 int width = info->d_width;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1447 int height = info->d_height;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1448 Uint32 *srcp = (Uint32 *)info->s_pixels;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1449 int srcskip = info->s_skip >> 2;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1450 Uint32 *dstp = (Uint32 *)info->d_pixels;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1451 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
1452 Uint32 s;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1453 Uint32 d;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1454 Uint32 s1;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1455 Uint32 d1;
1
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1456
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1457 while(height--) {
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1458 DUFFS_LOOP_DOUBLE2({
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1459 /* One Pixel Blend */
1
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1460 s = *srcp;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1461 d = *dstp;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1462 s1 = s & 0xff00ff;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1463 d1 = d & 0xff00ff;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1464 d1 = (d1 + ((s1 - d1) * alpha >> 8))
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1465 & 0xff00ff;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1466 s &= 0xff00;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1467 d &= 0xff00;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1468 d = (d + ((s - d) * alpha >> 8)) & 0xff00;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1469 *dstp = d1 | d | 0xff000000;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1470 ++srcp;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1471 ++dstp;
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1472 },{
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1473 /* Two Pixels Blend */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1474 s = *srcp;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1475 d = *dstp;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1476 s1 = s & 0xff00ff;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1477 d1 = d & 0xff00ff;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1478 d1 += (s1 - d1) * alpha >> 8;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1479 d1 &= 0xff00ff;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1480
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1481 s = ((s & 0xff00) >> 8) |
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1482 ((srcp[1] & 0xff00) << 8);
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1483 d = ((d & 0xff00) >> 8) |
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1484 ((dstp[1] & 0xff00) << 8);
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1485 d += (s - d) * alpha >> 8;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1486 d &= 0x00ff00ff;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1487
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1488 *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
1489 ++srcp;
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 s1 = *srcp;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1492 d1 = *dstp;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1493 s1 &= 0xff00ff;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1494 d1 &= 0xff00ff;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1495 d1 += (s1 - d1) * alpha >> 8;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1496 d1 &= 0xff00ff;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1497
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1498 *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
1499 ++srcp;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1500 ++dstp;
1
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1501 }, width);
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1502 srcp += srcskip;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1503 dstp += dstskip;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1504 }
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1505 }
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1506 }
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1507
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1508 /* fast ARGB888->(A)RGB888 blending with pixel alpha */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1509 static void BlitRGBtoRGBPixelAlpha(SDL_BlitInfo *info)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1510 {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1511 int width = info->d_width;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1512 int height = info->d_height;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1513 Uint32 *srcp = (Uint32 *)info->s_pixels;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1514 int srcskip = info->s_skip >> 2;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1515 Uint32 *dstp = (Uint32 *)info->d_pixels;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1516 int dstskip = info->d_skip >> 2;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1517
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1518 while(height--) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1519 DUFFS_LOOP4({
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1520 Uint32 dalpha;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1521 Uint32 d;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1522 Uint32 s1;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1523 Uint32 d1;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1524 Uint32 s = *srcp;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1525 Uint32 alpha = s >> 24;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1526 /* FIXME: Here we special-case opaque alpha since the
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1527 compositioning used (>>8 instead of /255) doesn't handle
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1528 it correctly. Also special-case alpha=0 for speed?
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1529 Benchmark this! */
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1530 if(alpha) {
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1531 if(alpha == SDL_ALPHA_OPAQUE) {
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1532 *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
1533 } else {
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1534 /*
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1535 * take out the middle component (green), and process
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1536 * the other two in parallel. One multiply less.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1537 */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1538 d = *dstp;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1539 dalpha = d & 0xff000000;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1540 s1 = s & 0xff00ff;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1541 d1 = d & 0xff00ff;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1542 d1 = (d1 + ((s1 - d1) * alpha >> 8)) & 0xff00ff;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1543 s &= 0xff00;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1544 d &= 0xff00;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1545 d = (d + ((s - d) * alpha >> 8)) & 0xff00;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1546 *dstp = d1 | d | dalpha;
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1547 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1548 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1549 ++srcp;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1550 ++dstp;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1551 }, width);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1552 srcp += srcskip;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1553 dstp += dstskip;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1554 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1555 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1556
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1557 #if GCC_ASMBLIT
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1558 /* fast (as in MMX with prefetch) ARGB888->(A)RGB888 blending with pixel alpha */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1559 inline static void BlitRGBtoRGBPixelAlphaMMX3DNOW(SDL_BlitInfo *info)
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1560 {
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1561 int width = info->d_width;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1562 int height = info->d_height;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1563 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
1564 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
1565 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
1566 int dstskip = info->d_skip >> 2;
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1567 SDL_PixelFormat* sf = info->src;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1568 Uint32 amask = sf->Amask;
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1569
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1570 __asm__ (
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1571 /* make mm6 all zeros. */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1572 "pxor %%mm6, %%mm6\n"
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1573
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1574 /* Make a mask to preserve the alpha. */
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1575 "movd %0, %%mm7\n\t" /* 0000F000 -> mm7 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1576 "punpcklbw %%mm7, %%mm7\n\t" /* FF000000 -> mm7 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1577 "pcmpeqb %%mm4, %%mm4\n\t" /* FFFFFFFF -> mm4 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1578 "movq %%mm4, %%mm3\n\t" /* FFFFFFFF -> mm3 (for later) */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1579 "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
1580
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1581 /* form channel masks */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1582 "movq %%mm7, %%mm4\n\t" /* 00FFFFFF -> mm4 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1583 "packsswb %%mm6, %%mm4\n\t" /* 00000FFF -> mm4 (channel mask) */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1584 "packsswb %%mm6, %%mm3\n\t" /* 0000FFFF -> mm3 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1585 "pxor %%mm4, %%mm3\n\t" /* 0000F000 -> mm3 (~channel mask) */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1586
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1587 /* get alpha channel shift */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1588 "movd %1, %%mm5\n\t" /* Ashift -> mm5 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1589
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1590 : /* nothing */ : "m" (sf->Amask), "m" (sf->Ashift) );
689
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 while(height--) {
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1593
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1594 DUFFS_LOOP4({
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1595 Uint32 alpha;
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1596
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1597 __asm__ (
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1598 "prefetch 64(%0)\n"
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1599 "prefetch 64(%1)\n"
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1600 : : "r" (srcp), "r" (dstp) );
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1601
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1602 alpha = *srcp & amask;
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1603 /* 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
1604 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
1605 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
1606 Benchmark this! */
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1607 if(alpha == 0) {
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1608 /* do nothing */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1609 }
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1610 else if(alpha == amask) {
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1611 /* opaque alpha -- copy RGB, keep dst alpha */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1612 /* using MMX here to free up regular registers for other things */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1613 __asm__ (
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1614 "movd (%0), %%mm0\n\t" /* src(ARGB) -> mm0 (0000ARGB)*/
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1615 "movd (%1), %%mm1\n\t" /* dst(ARGB) -> mm1 (0000ARGB)*/
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1616 "pand %%mm4, %%mm0\n\t" /* src & chanmask -> mm0 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1617 "pand %%mm3, %%mm1\n\t" /* dst & ~chanmask -> mm2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1618 "por %%mm0, %%mm1\n\t" /* src | dst -> mm1 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1619 "movd %%mm1, (%1) \n\t" /* mm1 -> dst */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1620
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1621 : : "r" (srcp), "r" (dstp) );
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1622 }
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1623
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1624 else {
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1625 __asm__ (
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1626 /* 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
1627 "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
1628 "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
1629
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1630 /* 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
1631
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1632 /* if supporting pshufw */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1633 /*"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
1634 /*"psrlw $8, %%mm2\n" */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1635
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1636 /* else: */
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1637 "movd %2, %%mm2\n"
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1638 "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
1639 "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
1640 "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
1641 "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
1642
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1643 /* move the colors into words. */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1644 "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
1645 "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
1646
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1647 /* src - dst */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1648 "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
1649
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1650 /* A * (src-dst) */
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1651 "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
1652 "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
1653 "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
1654
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1655 "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
1656
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1657 "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
1658
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1659 : : "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
1660
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1661 }
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1662 ++srcp;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1663 ++dstp;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1664 }, width);
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1665 srcp += srcskip;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1666 dstp += dstskip;
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
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1669 __asm__ (
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1670 "emms\n"
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1671 : );
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1672 }
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1673 /* End GCC_ASMBLIT*/
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1674
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1675 #elif MSVC_ASMBLIT
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1676 /* 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
1677 static void BlitRGBtoRGBPixelAlphaMMX3DNOW(SDL_BlitInfo *info)
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1678 {
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1679 int width = info->d_width;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1680 int height = info->d_height;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1681 Uint32 *srcp = (Uint32 *)info->s_pixels;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1682 int srcskip = info->s_skip >> 2;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1683 Uint32 *dstp = (Uint32 *)info->d_pixels;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1684 int dstskip = info->d_skip >> 2;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1685 SDL_PixelFormat* sf = info->src;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1686 Uint32 chanmask = sf->Rmask | sf->Gmask | sf->Bmask;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1687 Uint32 amask = sf->Amask;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1688 Uint32 ashift = sf->Ashift;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1689 Uint64 multmask;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1690
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1691 __m64 src1, dst1, mm_alpha, mm_zero, dmask;
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 mm_zero = _mm_setzero_si64(); /* 0 -> mm_zero */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1694 multmask = ~(0xFFFFi64 << (ashift * 2));
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1695 dmask = *(__m64*) &multmask; /* dst alpha mask -> dmask */
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 while(height--) {
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1698 DUFFS_LOOP4({
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1699 Uint32 alpha;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1700
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1701 _m_prefetch(srcp + 16);
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1702 _m_prefetch(dstp + 16);
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1703
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1704 alpha = *srcp & amask;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1705 if (alpha == 0) {
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1706 /* do nothing */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1707 } else if (alpha == amask) {
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1708 /* copy RGB, keep dst alpha */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1709 *dstp = (*srcp & chanmask) | (*dstp & ~chanmask);
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1710 } else {
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1711 src1 = _mm_cvtsi32_si64(*srcp); /* src(ARGB) -> src1 (0000ARGB)*/
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1712 src1 = _mm_unpacklo_pi8(src1, mm_zero); /* 0A0R0G0B -> src1 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1713
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1714 dst1 = _mm_cvtsi32_si64(*dstp); /* dst(ARGB) -> dst1 (0000ARGB)*/
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1715 dst1 = _mm_unpacklo_pi8(dst1, mm_zero); /* 0A0R0G0B -> dst1 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1716
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1717 mm_alpha = _mm_cvtsi32_si64(alpha); /* alpha -> mm_alpha (0000000A) */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1718 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
1719 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
1720 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
1721 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
1722
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1723 /* blend */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1724 src1 = _mm_sub_pi16(src1, dst1);/* src - dst -> src1 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1725 src1 = _mm_mullo_pi16(src1, mm_alpha); /* (src - dst) * alpha -> src1 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1726 src1 = _mm_srli_pi16(src1, 8); /* src1 >> 8 -> src1(000R0G0B) */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1727 dst1 = _mm_add_pi8(src1, dst1); /* src1 + dst1(dst) -> dst1(0A0R0G0B) */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1728 dst1 = _mm_packs_pu16(dst1, mm_zero); /* 0000ARGB -> dst1 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1729
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1730 *dstp = _mm_cvtsi64_si32(dst1); /* dst1 -> pixel */
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 ++srcp;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1733 ++dstp;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1734 }, width);
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1735 srcp += srcskip;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1736 dstp += dstskip;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1737 }
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1738 _mm_empty();
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1739 }
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1740 /* End MSVC_ASMBLIT */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1741
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1742 #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
1743
1
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1744 /* 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
1745
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1746 /* 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
1747 #define BLEND16_50(d, s, mask) \
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1748 ((((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
1749
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1750 /* blend two 16 bit pixels at 50% */
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1751 #define BLEND2x16_50(d, s, mask) \
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1752 (((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
1753 + (s & d & (~(mask | mask << 16))))
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1754
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1755 static void Blit16to16SurfaceAlpha128(SDL_BlitInfo *info, Uint16 mask)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1756 {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1757 int width = info->d_width;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1758 int height = info->d_height;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1759 Uint16 *srcp = (Uint16 *)info->s_pixels;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1760 int srcskip = info->s_skip >> 1;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1761 Uint16 *dstp = (Uint16 *)info->d_pixels;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1762 int dstskip = info->d_skip >> 1;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1763
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1764 while(height--) {
1456
84de7511f79f Fixed a bunch of 64-bit compatibility problems
Sam Lantinga <slouken@libsdl.org>
parents: 1443
diff changeset
1765 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
1766 /*
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1767 * Source and destination not aligned, pipeline it.
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1768 * 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
1769 * small ones
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1770 */
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1771 Uint32 prev_sw;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1772 int w = width;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1773
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1774 /* handle odd destination */
1456
84de7511f79f Fixed a bunch of 64-bit compatibility problems
Sam Lantinga <slouken@libsdl.org>
parents: 1443
diff changeset
1775 if((uintptr_t)dstp & 2) {
1
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1776 Uint16 d = *dstp, s = *srcp;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1777 *dstp = BLEND16_50(d, s, mask);
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1778 dstp++;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1779 srcp++;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1780 w--;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1781 }
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1782 srcp++; /* srcp is now 32-bit aligned */
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1783
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1784 /* bootstrap pipeline with first halfword */
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1785 prev_sw = ((Uint32 *)srcp)[-1];
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1786
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1787 while(w > 1) {
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1788 Uint32 sw, dw, s;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1789 sw = *(Uint32 *)srcp;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1790 dw = *(Uint32 *)dstp;
1443
9ebbbb4ae53b Fixed some OpenWatcom warnings
Sam Lantinga <slouken@libsdl.org>
parents: 1428
diff changeset
1791 #if SDL_BYTEORDER == SDL_BIG_ENDIAN
9ebbbb4ae53b Fixed some OpenWatcom warnings
Sam Lantinga <slouken@libsdl.org>
parents: 1428
diff changeset
1792 s = (prev_sw << 16) + (sw >> 16);
9ebbbb4ae53b Fixed some OpenWatcom warnings
Sam Lantinga <slouken@libsdl.org>
parents: 1428
diff changeset
1793 #else
9ebbbb4ae53b Fixed some OpenWatcom warnings
Sam Lantinga <slouken@libsdl.org>
parents: 1428
diff changeset
1794 s = (prev_sw >> 16) + (sw << 16);
9ebbbb4ae53b Fixed some OpenWatcom warnings
Sam Lantinga <slouken@libsdl.org>
parents: 1428
diff changeset
1795 #endif
1
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1796 prev_sw = sw;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1797 *(Uint32 *)dstp = BLEND2x16_50(dw, s, mask);
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1798 dstp += 2;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1799 srcp += 2;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1800 w -= 2;
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
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1803 /* final pixel if any */
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1804 if(w) {
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1805 Uint16 d = *dstp, s;
1443
9ebbbb4ae53b Fixed some OpenWatcom warnings
Sam Lantinga <slouken@libsdl.org>
parents: 1428
diff changeset
1806 #if SDL_BYTEORDER == SDL_BIG_ENDIAN
9ebbbb4ae53b Fixed some OpenWatcom warnings
Sam Lantinga <slouken@libsdl.org>
parents: 1428
diff changeset
1807 s = (Uint16)prev_sw;
9ebbbb4ae53b Fixed some OpenWatcom warnings
Sam Lantinga <slouken@libsdl.org>
parents: 1428
diff changeset
1808 #else
9ebbbb4ae53b Fixed some OpenWatcom warnings
Sam Lantinga <slouken@libsdl.org>
parents: 1428
diff changeset
1809 s = (Uint16)(prev_sw >> 16);
9ebbbb4ae53b Fixed some OpenWatcom warnings
Sam Lantinga <slouken@libsdl.org>
parents: 1428
diff changeset
1810 #endif
1
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1811 *dstp = BLEND16_50(d, s, mask);
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1812 srcp++;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1813 dstp++;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1814 }
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1815 srcp += srcskip - 1;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1816 dstp += dstskip;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1817 } else {
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1818 /* source and destination are aligned */
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1819 int w = width;
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 /* first odd pixel? */
1456
84de7511f79f Fixed a bunch of 64-bit compatibility problems
Sam Lantinga <slouken@libsdl.org>
parents: 1443
diff changeset
1822 if((uintptr_t)srcp & 2) {
1
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1823 Uint16 d = *dstp, s = *srcp;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1824 *dstp = BLEND16_50(d, s, mask);
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1825 srcp++;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1826 dstp++;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1827 w--;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1828 }
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1829 /* 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
1830
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1831 while(w > 1) {
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1832 Uint32 sw = *(Uint32 *)srcp;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1833 Uint32 dw = *(Uint32 *)dstp;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1834 *(Uint32 *)dstp = BLEND2x16_50(dw, sw, mask);
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1835 srcp += 2;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1836 dstp += 2;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1837 w -= 2;
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
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1840 /* last odd pixel? */
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1841 if(w) {
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1842 Uint16 d = *dstp, s = *srcp;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1843 *dstp = BLEND16_50(d, s, mask);
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1844 srcp++;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1845 dstp++;
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 += srcskip;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1848 dstp += dstskip;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1849 }
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1850 }
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1851 }
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1852
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1853 #if GCC_ASMBLIT
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1854 /* 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
1855 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
1856 {
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1857 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
1858 if(alpha == 128) {
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1859 Blit16to16SurfaceAlpha128(info, 0xf7de);
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1860 } else {
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1861 int width = info->d_width;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1862 int height = info->d_height;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1863 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
1864 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
1865 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
1866 int dstskip = info->d_skip >> 1;
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1867 Uint32 s, d;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1868 Uint8 load[8];
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1869
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1870 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
1871 *(Uint64 *)load = alpha;
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1872 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
1873
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1874 movq_m2r(*load, mm0); /* alpha(0000000A) -> mm0 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1875 punpcklwd_r2r(mm0, mm0); /* 00000A0A -> mm0 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1876 punpcklwd_r2r(mm0, mm0); /* 0A0A0A0A -> mm0 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1877 /* position alpha to allow for mullo and mulhi on diff channels
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1878 to reduce the number of operations */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1879 psllq_i2r(3, mm0);
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1880
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1881 /* 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
1882 *(Uint64 *)load = 0x07E007E007E007E0ULL;
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1883 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
1884 *(Uint64 *)load = 0x001F001F001F001FULL;
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1885 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
1886 while(height--) {
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1887 DUFFS_LOOP_QUATRO2(
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1888 {
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1889 s = *srcp++;
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1890 d = *dstp;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1891 /*
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1892 * 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
1893 * 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
1894 * components at the same time.
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1895 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1896 s = (s | s << 16) & 0x07e0f81f;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1897 d = (d | d << 16) & 0x07e0f81f;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1898 d += (s - d) * alpha >> 5;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1899 d &= 0x07e0f81f;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1900 *dstp++ = d | d >> 16;
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1901 },{
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1902 s = *srcp++;
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1903 d = *dstp;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1904 /*
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1905 * 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
1906 * 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
1907 * components at the same time.
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1908 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1909 s = (s | s << 16) & 0x07e0f81f;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1910 d = (d | d << 16) & 0x07e0f81f;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1911 d += (s - d) * alpha >> 5;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1912 d &= 0x07e0f81f;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1913 *dstp++ = d | d >> 16;
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1914 s = *srcp++;
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1915 d = *dstp;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1916 /*
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1917 * 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
1918 * 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
1919 * components at the same time.
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1920 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1921 s = (s | s << 16) & 0x07e0f81f;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1922 d = (d | d << 16) & 0x07e0f81f;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1923 d += (s - d) * alpha >> 5;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1924 d &= 0x07e0f81f;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1925 *dstp++ = d | d >> 16;
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1926 },{
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1927 movq_m2r((*srcp), mm2);/* 4 src pixels -> mm2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1928 movq_m2r((*dstp), mm3);/* 4 dst pixels -> mm3 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1929
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1930 /* red -- does not need a mask since the right shift clears
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1931 the uninteresting bits */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1932 movq_r2r(mm2, mm5); /* src -> mm5 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1933 movq_r2r(mm3, mm6); /* dst -> mm6 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1934 psrlw_i2r(11, mm5); /* mm5 >> 11 -> mm5 [000r 000r 000r 000r] */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1935 psrlw_i2r(11, mm6); /* mm6 >> 11 -> mm6 [000r 000r 000r 000r] */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1936
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1937 /* blend */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1938 psubw_r2r(mm6, mm5);/* src - dst -> mm5 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1939 pmullw_r2r(mm0, mm5); /* mm5 * alpha -> mm5 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1940 /* alpha used is actually 11 bits
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1941 11 + 5 = 16 bits, so the sign bits are lost */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1942 psrlw_i2r(11, mm5); /* mm5 >> 11 -> mm5 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1943 paddw_r2r(mm5, mm6); /* mm5 + mm6(dst) -> mm6 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1944 psllw_i2r(11, mm6); /* mm6 << 11 -> mm6 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1945
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1946 movq_r2r(mm6, mm1); /* save new reds in dsts */
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 /* green -- process the bits in place */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1949 movq_r2r(mm2, mm5); /* src -> mm5 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1950 movq_r2r(mm3, mm6); /* dst -> mm6 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1951 pand_r2r(mm4, mm5); /* src & MASKGREEN -> mm5 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1952 pand_r2r(mm4, mm6); /* dst & MASKGREEN -> mm6 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1953
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1954 /* blend */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1955 psubw_r2r(mm6, mm5);/* src - dst -> mm5 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1956 pmulhw_r2r(mm0, mm5); /* mm5 * alpha -> mm5 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1957 /* 11 + 11 - 16 = 6 bits, so all the lower uninteresting
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1958 bits are gone and the sign bits present */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1959 psllw_i2r(5, mm5); /* mm5 << 5 -> mm5 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1960 paddw_r2r(mm5, mm6); /* mm5 + mm6(dst) -> mm6 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1961
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1962 por_r2r(mm6, mm1); /* save new greens in dsts */
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 /* blue */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1965 movq_r2r(mm2, mm5); /* src -> mm5 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1966 movq_r2r(mm3, mm6); /* dst -> mm6 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1967 pand_r2r(mm7, mm5); /* src & MASKBLUE -> mm5[000b 000b 000b 000b] */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1968 pand_r2r(mm7, mm6); /* dst & MASKBLUE -> mm6[000b 000b 000b 000b] */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1969
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1970 /* blend */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1971 psubw_r2r(mm6, mm5);/* src - dst -> mm5 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1972 pmullw_r2r(mm0, mm5); /* mm5 * alpha -> mm5 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1973 /* 11 + 5 = 16 bits, so the sign bits are lost and
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1974 the interesting bits will need to be MASKed */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1975 psrlw_i2r(11, mm5); /* mm5 >> 11 -> mm5 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1976 paddw_r2r(mm5, mm6); /* mm5 + mm6(dst) -> mm6 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1977 pand_r2r(mm7, mm6); /* mm6 & MASKBLUE -> mm6[000b 000b 000b 000b] */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1978
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1979 por_r2r(mm6, mm1); /* save new blues in dsts */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1980
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1981 movq_r2m(mm1, *dstp); /* mm1 -> 4 dst pixels */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1982
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1983 srcp += 4;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1984 dstp += 4;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
1985 }, width);
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1986 srcp += srcskip;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1987 dstp += dstskip;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1988 }
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1989 emms();
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1990 }
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1991 }
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1992
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1993 /* 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
1994 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
1995 {
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1996 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
1997 if(alpha == 128) {
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1998 Blit16to16SurfaceAlpha128(info, 0xfbde);
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1999 } else {
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2000 int width = info->d_width;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2001 int height = info->d_height;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2002 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
2003 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
2004 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
2005 int dstskip = info->d_skip >> 1;
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2006 Uint32 s, d;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2007 Uint8 load[8];
689
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 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
2010 *(Uint64 *)load = alpha;
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2011 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
2012
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2013 movq_m2r(*load, mm0); /* alpha(0000000A) -> mm0 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2014 punpcklwd_r2r(mm0, mm0); /* 00000A0A -> mm0 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2015 punpcklwd_r2r(mm0, mm0); /* 0A0A0A0A -> mm0 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2016 /* position alpha to allow for mullo and mulhi on diff channels
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2017 to reduce the number of operations */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2018 psllq_i2r(3, mm0);
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2019
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2020 /* 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
2021 *(Uint64 *)load = 0x03E003E003E003E0ULL;
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2022 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
2023 *(Uint64 *)load = 0x001F001F001F001FULL;
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2024 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
2025 while(height--) {
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2026 DUFFS_LOOP_QUATRO2(
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2027 {
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2028 s = *srcp++;
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2029 d = *dstp;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2030 /*
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2031 * 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
2032 * 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
2033 * components at the same time.
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2034 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2035 s = (s | s << 16) & 0x03e07c1f;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2036 d = (d | d << 16) & 0x03e07c1f;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2037 d += (s - d) * alpha >> 5;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2038 d &= 0x03e07c1f;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2039 *dstp++ = d | d >> 16;
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2040 },{
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2041 s = *srcp++;
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2042 d = *dstp;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2043 /*
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2044 * 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
2045 * 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
2046 * components at the same time.
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2047 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2048 s = (s | s << 16) & 0x03e07c1f;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2049 d = (d | d << 16) & 0x03e07c1f;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2050 d += (s - d) * alpha >> 5;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2051 d &= 0x03e07c1f;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2052 *dstp++ = d | d >> 16;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2053 s = *srcp++;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2054 d = *dstp;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2055 /*
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2056 * 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
2057 * 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
2058 * components at the same time.
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2059 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2060 s = (s | s << 16) & 0x03e07c1f;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2061 d = (d | d << 16) & 0x03e07c1f;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2062 d += (s - d) * alpha >> 5;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2063 d &= 0x03e07c1f;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2064 *dstp++ = d | d >> 16;
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2065 },{
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2066 movq_m2r((*srcp), mm2);/* 4 src pixels -> mm2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2067 movq_m2r((*dstp), mm3);/* 4 dst pixels -> mm3 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2068
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2069 /* red -- process the bits in place */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2070 psllq_i2r(5, mm4); /* turn MASKGREEN into MASKRED */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2071 /* by reusing the GREEN mask we free up another mmx
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2072 register to accumulate the result */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2073
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2074 movq_r2r(mm2, mm5); /* src -> mm5 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2075 movq_r2r(mm3, mm6); /* dst -> mm6 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2076 pand_r2r(mm4, mm5); /* src & MASKRED -> mm5 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2077 pand_r2r(mm4, mm6); /* dst & MASKRED -> mm6 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2078
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2079 /* blend */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2080 psubw_r2r(mm6, mm5);/* src - dst -> mm5 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2081 pmulhw_r2r(mm0, mm5); /* mm5 * alpha -> mm5 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2082 /* 11 + 15 - 16 = 10 bits, uninteresting bits will be
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2083 cleared by a MASK below */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2084 psllw_i2r(5, mm5); /* mm5 << 5 -> mm5 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2085 paddw_r2r(mm5, mm6); /* mm5 + mm6(dst) -> mm6 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2086 pand_r2r(mm4, mm6); /* mm6 & MASKRED -> mm6 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2087
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2088 psrlq_i2r(5, mm4); /* turn MASKRED back into MASKGREEN */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2089
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2090 movq_r2r(mm6, mm1); /* save new reds in dsts */
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 /* green -- process the bits in place */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2093 movq_r2r(mm2, mm5); /* src -> mm5 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2094 movq_r2r(mm3, mm6); /* dst -> mm6 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2095 pand_r2r(mm4, mm5); /* src & MASKGREEN -> mm5 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2096 pand_r2r(mm4, mm6); /* dst & MASKGREEN -> mm6 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2097
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2098 /* blend */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2099 psubw_r2r(mm6, mm5);/* src - dst -> mm5 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2100 pmulhw_r2r(mm0, mm5); /* mm5 * alpha -> mm5 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2101 /* 11 + 10 - 16 = 5 bits, so all the lower uninteresting
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2102 bits are gone and the sign bits present */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2103 psllw_i2r(5, mm5); /* mm5 << 5 -> mm5 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2104 paddw_r2r(mm5, mm6); /* mm5 + mm6(dst) -> 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 por_r2r(mm6, mm1); /* save new greens in dsts */
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 /* blue */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2109 movq_r2r(mm2, mm5); /* src -> mm5 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2110 movq_r2r(mm3, mm6); /* dst -> mm6 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2111 pand_r2r(mm7, mm5); /* src & MASKBLUE -> mm5[000b 000b 000b 000b] */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2112 pand_r2r(mm7, mm6); /* dst & MASKBLUE -> mm6[000b 000b 000b 000b] */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2113
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2114 /* blend */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2115 psubw_r2r(mm6, mm5);/* src - dst -> mm5 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2116 pmullw_r2r(mm0, mm5); /* mm5 * alpha -> mm5 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2117 /* 11 + 5 = 16 bits, so the sign bits are lost and
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2118 the interesting bits will need to be MASKed */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2119 psrlw_i2r(11, mm5); /* mm5 >> 11 -> mm5 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2120 paddw_r2r(mm5, mm6); /* mm5 + mm6(dst) -> mm6 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2121 pand_r2r(mm7, mm6); /* mm6 & MASKBLUE -> mm6[000b 000b 000b 000b] */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2122
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2123 por_r2r(mm6, mm1); /* save new blues in dsts */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2124
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2125 movq_r2m(mm1, *dstp);/* mm1 -> 4 dst pixels */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2126
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2127 srcp += 4;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2128 dstp += 4;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2129 }, width);
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2130 srcp += srcskip;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2131 dstp += dstskip;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2132 }
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2133 emms();
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2134 }
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2135 }
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2136 /* End GCC_ASMBLIT */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2137
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2138 #elif MSVC_ASMBLIT
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2139 /* fast RGB565->RGB565 blending with surface alpha */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2140 static void Blit565to565SurfaceAlphaMMX(SDL_BlitInfo *info)
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2141 {
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2142 unsigned alpha = info->src->alpha;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2143 if(alpha == 128) {
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2144 Blit16to16SurfaceAlpha128(info, 0xf7de);
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2145 } else {
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2146 int width = info->d_width;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2147 int height = info->d_height;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2148 Uint16 *srcp = (Uint16 *)info->s_pixels;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2149 int srcskip = info->s_skip >> 1;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2150 Uint16 *dstp = (Uint16 *)info->d_pixels;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2151 int dstskip = info->d_skip >> 1;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2152 Uint32 s, d;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2153
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2154 __m64 src1, dst1, src2, dst2, gmask, bmask, mm_res, mm_alpha;
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 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
2157 mm_alpha = _mm_set_pi32(0, alpha); /* 0000000A -> mm_alpha */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2158 alpha >>= 3; /* downscale alpha to 5 bits */
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 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
2161 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
2162 /* position alpha to allow for mullo and mulhi on diff channels
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2163 to reduce the number of operations */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2164 mm_alpha = _mm_slli_si64(mm_alpha, 3);
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2165
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2166 /* Setup the 565 color channel masks */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2167 gmask = _mm_set_pi32(0x07E007E0, 0x07E007E0); /* MASKGREEN -> gmask */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2168 bmask = _mm_set_pi32(0x001F001F, 0x001F001F); /* MASKBLUE -> bmask */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2169
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2170 while(height--) {
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2171 DUFFS_LOOP_QUATRO2(
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2172 {
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2173 s = *srcp++;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2174 d = *dstp;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2175 /*
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2176 * shift out the middle component (green) to
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2177 * the high 16 bits, and process all three RGB
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2178 * components at the same time.
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2179 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2180 s = (s | s << 16) & 0x07e0f81f;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2181 d = (d | d << 16) & 0x07e0f81f;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2182 d += (s - d) * alpha >> 5;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2183 d &= 0x07e0f81f;
1546
4b835e36633d *** empty log message ***
Sam Lantinga <slouken@libsdl.org>
parents: 1542
diff changeset
2184 *dstp++ = (Uint16)(d | d >> 16);
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2185 },{
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2186 s = *srcp++;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2187 d = *dstp;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2188 /*
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2189 * shift out the middle component (green) to
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2190 * the high 16 bits, and process all three RGB
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2191 * components at the same time.
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2192 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2193 s = (s | s << 16) & 0x07e0f81f;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2194 d = (d | d << 16) & 0x07e0f81f;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2195 d += (s - d) * alpha >> 5;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2196 d &= 0x07e0f81f;
1546
4b835e36633d *** empty log message ***
Sam Lantinga <slouken@libsdl.org>
parents: 1542
diff changeset
2197 *dstp++ = (Uint16)(d | d >> 16);
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2198 s = *srcp++;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2199 d = *dstp;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2200 /*
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2201 * shift out the middle component (green) to
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2202 * the high 16 bits, and process all three RGB
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2203 * components at the same time.
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2204 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2205 s = (s | s << 16) & 0x07e0f81f;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2206 d = (d | d << 16) & 0x07e0f81f;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2207 d += (s - d) * alpha >> 5;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2208 d &= 0x07e0f81f;
1546
4b835e36633d *** empty log message ***
Sam Lantinga <slouken@libsdl.org>
parents: 1542
diff changeset
2209 *dstp++ = (Uint16)(d | d >> 16);
1542
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 src1 = *(__m64*)srcp; /* 4 src pixels -> src1 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2212 dst1 = *(__m64*)dstp; /* 4 dst pixels -> dst1 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2213
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2214 /* red */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2215 src2 = src1;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2216 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
2217
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2218 dst2 = dst1;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2219 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
2220
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2221 /* blend */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2222 src2 = _mm_sub_pi16(src2, dst2);/* src - dst -> src2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2223 src2 = _mm_mullo_pi16(src2, mm_alpha); /* src2 * alpha -> src2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2224 src2 = _mm_srli_pi16(src2, 11); /* src2 >> 11 -> src2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2225 dst2 = _mm_add_pi16(src2, dst2); /* src2 + dst2 -> dst2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2226 dst2 = _mm_slli_pi16(dst2, 11); /* dst2 << 11 -> dst2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2227
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2228 mm_res = dst2; /* RED -> mm_res */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2229
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2230 /* green -- process the bits in place */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2231 src2 = src1;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2232 src2 = _mm_and_si64(src2, gmask); /* src & MASKGREEN -> src2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2233
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2234 dst2 = dst1;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2235 dst2 = _mm_and_si64(dst2, gmask); /* dst & MASKGREEN -> dst2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2236
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2237 /* blend */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2238 src2 = _mm_sub_pi16(src2, dst2);/* src - dst -> src2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2239 src2 = _mm_mulhi_pi16(src2, mm_alpha); /* src2 * alpha -> src2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2240 src2 = _mm_slli_pi16(src2, 5); /* src2 << 5 -> src2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2241 dst2 = _mm_add_pi16(src2, dst2); /* src2 + dst2 -> dst2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2242
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2243 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
2244
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2245 /* blue */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2246 src2 = src1;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2247 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
2248
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2249 dst2 = dst1;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2250 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
2251
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2252 /* blend */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2253 src2 = _mm_sub_pi16(src2, dst2);/* src - dst -> src2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2254 src2 = _mm_mullo_pi16(src2, mm_alpha); /* src2 * alpha -> src2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2255 src2 = _mm_srli_pi16(src2, 11); /* src2 >> 11 -> src2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2256 dst2 = _mm_add_pi16(src2, dst2); /* src2 + dst2 -> dst2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2257 dst2 = _mm_and_si64(dst2, bmask); /* dst2 & MASKBLUE -> dst2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2258
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2259 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
2260
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2261 *(__m64*)dstp = mm_res; /* mm_res -> 4 dst pixels */
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 srcp += 4;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2264 dstp += 4;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2265 }, width);
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2266 srcp += srcskip;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2267 dstp += dstskip;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2268 }
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2269 _mm_empty();
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2270 }
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2271 }
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2272
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2273 /* fast RGB555->RGB555 blending with surface alpha */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2274 static void Blit555to555SurfaceAlphaMMX(SDL_BlitInfo *info)
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2275 {
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2276 unsigned alpha = info->src->alpha;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2277 if(alpha == 128) {
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2278 Blit16to16SurfaceAlpha128(info, 0xfbde);
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2279 } else {
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2280 int width = info->d_width;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2281 int height = info->d_height;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2282 Uint16 *srcp = (Uint16 *)info->s_pixels;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2283 int srcskip = info->s_skip >> 1;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2284 Uint16 *dstp = (Uint16 *)info->d_pixels;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2285 int dstskip = info->d_skip >> 1;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2286 Uint32 s, d;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2287
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2288 __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
2289
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2290 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
2291 mm_alpha = _mm_set_pi32(0, alpha); /* 0000000A -> mm_alpha */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2292 alpha >>= 3; /* downscale alpha to 5 bits */
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 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
2295 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
2296 /* position alpha to allow for mullo and mulhi on diff channels
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2297 to reduce the number of operations */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2298 mm_alpha = _mm_slli_si64(mm_alpha, 3);
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2299
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2300 /* Setup the 555 color channel masks */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2301 rmask = _mm_set_pi32(0x7C007C00, 0x7C007C00); /* MASKRED -> rmask */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2302 gmask = _mm_set_pi32(0x03E003E0, 0x03E003E0); /* MASKGREEN -> gmask */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2303 bmask = _mm_set_pi32(0x001F001F, 0x001F001F); /* MASKBLUE -> bmask */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2304
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2305 while(height--) {
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2306 DUFFS_LOOP_QUATRO2(
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 s = *srcp++;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2309 d = *dstp;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2310 /*
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2311 * shift out the middle component (green) to
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2312 * the high 16 bits, and process all three RGB
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2313 * components at the same time.
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2314 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2315 s = (s | s << 16) & 0x03e07c1f;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2316 d = (d | d << 16) & 0x03e07c1f;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2317 d += (s - d) * alpha >> 5;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2318 d &= 0x03e07c1f;
1546
4b835e36633d *** empty log message ***
Sam Lantinga <slouken@libsdl.org>
parents: 1542
diff changeset
2319 *dstp++ = (Uint16)(d | d >> 16);
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2320 },{
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2321 s = *srcp++;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2322 d = *dstp;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2323 /*
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2324 * shift out the middle component (green) to
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2325 * the high 16 bits, and process all three RGB
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2326 * components at the same time.
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2327 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2328 s = (s | s << 16) & 0x03e07c1f;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2329 d = (d | d << 16) & 0x03e07c1f;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2330 d += (s - d) * alpha >> 5;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2331 d &= 0x03e07c1f;
1546
4b835e36633d *** empty log message ***
Sam Lantinga <slouken@libsdl.org>
parents: 1542
diff changeset
2332 *dstp++ = (Uint16)(d | d >> 16);
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2333 s = *srcp++;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2334 d = *dstp;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2335 /*
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2336 * shift out the middle component (green) to
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2337 * the high 16 bits, and process all three RGB
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2338 * components at the same time.
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2339 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2340 s = (s | s << 16) & 0x03e07c1f;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2341 d = (d | d << 16) & 0x03e07c1f;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2342 d += (s - d) * alpha >> 5;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2343 d &= 0x03e07c1f;
1546
4b835e36633d *** empty log message ***
Sam Lantinga <slouken@libsdl.org>
parents: 1542
diff changeset
2344 *dstp++ = (Uint16)(d | d >> 16);
1542
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 src1 = *(__m64*)srcp; /* 4 src pixels -> src1 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2347 dst1 = *(__m64*)dstp; /* 4 dst pixels -> dst1 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2348
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2349 /* red -- process the bits in place */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2350 src2 = src1;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2351 src2 = _mm_and_si64(src2, rmask); /* src & MASKRED -> src2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2352
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2353 dst2 = dst1;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2354 dst2 = _mm_and_si64(dst2, rmask); /* dst & MASKRED -> dst2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2355
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2356 /* blend */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2357 src2 = _mm_sub_pi16(src2, dst2);/* src - dst -> src2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2358 src2 = _mm_mulhi_pi16(src2, mm_alpha); /* src2 * alpha -> src2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2359 src2 = _mm_slli_pi16(src2, 5); /* src2 << 5 -> src2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2360 dst2 = _mm_add_pi16(src2, dst2); /* src2 + dst2 -> dst2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2361 dst2 = _mm_and_si64(dst2, rmask); /* dst2 & MASKRED -> dst2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2362
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2363 mm_res = dst2; /* RED -> mm_res */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2364
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2365 /* green -- process the bits in place */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2366 src2 = src1;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2367 src2 = _mm_and_si64(src2, gmask); /* src & MASKGREEN -> src2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2368
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2369 dst2 = dst1;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2370 dst2 = _mm_and_si64(dst2, gmask); /* dst & MASKGREEN -> dst2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2371
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2372 /* blend */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2373 src2 = _mm_sub_pi16(src2, dst2);/* src - dst -> src2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2374 src2 = _mm_mulhi_pi16(src2, mm_alpha); /* src2 * alpha -> src2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2375 src2 = _mm_slli_pi16(src2, 5); /* src2 << 5 -> src2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2376 dst2 = _mm_add_pi16(src2, dst2); /* src2 + dst2 -> dst2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2377
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2378 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
2379
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2380 /* blue */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2381 src2 = src1; /* src -> src2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2382 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
2383
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2384 dst2 = dst1; /* dst -> dst2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2385 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
2386
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2387 /* blend */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2388 src2 = _mm_sub_pi16(src2, dst2);/* src - dst -> src2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2389 src2 = _mm_mullo_pi16(src2, mm_alpha); /* src2 * alpha -> src2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2390 src2 = _mm_srli_pi16(src2, 11); /* src2 >> 11 -> src2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2391 dst2 = _mm_add_pi16(src2, dst2); /* src2 + dst2 -> dst2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2392 dst2 = _mm_and_si64(dst2, bmask); /* dst2 & MASKBLUE -> dst2 */
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2393
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2394 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
2395
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2396 *(__m64*)dstp = mm_res; /* mm_res -> 4 dst pixels */
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 srcp += 4;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2399 dstp += 4;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2400 }, width);
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2401 srcp += srcskip;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2402 dstp += dstskip;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2403 }
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2404 _mm_empty();
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2405 }
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2406 }
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2407 #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
2408
1
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2409 /* fast RGB565->RGB565 blending with surface alpha */
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2410 static void Blit565to565SurfaceAlpha(SDL_BlitInfo *info)
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2411 {
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2412 unsigned alpha = info->src->alpha;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2413 if(alpha == 128) {
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2414 Blit16to16SurfaceAlpha128(info, 0xf7de);
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2415 } else {
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2416 int width = info->d_width;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2417 int height = info->d_height;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2418 Uint16 *srcp = (Uint16 *)info->s_pixels;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2419 int srcskip = info->s_skip >> 1;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2420 Uint16 *dstp = (Uint16 *)info->d_pixels;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2421 int dstskip = info->d_skip >> 1;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2422 alpha >>= 3; /* downscale alpha to 5 bits */
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2423
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2424 while(height--) {
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2425 DUFFS_LOOP4({
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2426 Uint32 s = *srcp++;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2427 Uint32 d = *dstp;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2428 /*
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2429 * shift out the middle component (green) to
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2430 * 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
2431 * components at the same time.
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2432 */
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2433 s = (s | s << 16) & 0x07e0f81f;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2434 d = (d | d << 16) & 0x07e0f81f;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2435 d += (s - d) * alpha >> 5;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2436 d &= 0x07e0f81f;
1428
5f52867ba65c Update for Visual C++ 6.0
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
2437 *dstp++ = (Uint16)(d | d >> 16);
1
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2438 }, width);
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2439 srcp += srcskip;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2440 dstp += dstskip;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2441 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2442 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2443 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2444
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2445 /* fast RGB555->RGB555 blending with surface alpha */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2446 static void Blit555to555SurfaceAlpha(SDL_BlitInfo *info)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2447 {
1
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2448 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
2449 if(alpha == 128) {
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2450 Blit16to16SurfaceAlpha128(info, 0xfbde);
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2451 } else {
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2452 int width = info->d_width;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2453 int height = info->d_height;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2454 Uint16 *srcp = (Uint16 *)info->s_pixels;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2455 int srcskip = info->s_skip >> 1;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2456 Uint16 *dstp = (Uint16 *)info->d_pixels;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2457 int dstskip = info->d_skip >> 1;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2458 alpha >>= 3; /* downscale alpha to 5 bits */
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2459
1
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2460 while(height--) {
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2461 DUFFS_LOOP4({
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2462 Uint32 s = *srcp++;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2463 Uint32 d = *dstp;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2464 /*
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2465 * shift out the middle component (green) to
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2466 * 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
2467 * components at the same time.
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2468 */
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2469 s = (s | s << 16) & 0x03e07c1f;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2470 d = (d | d << 16) & 0x03e07c1f;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2471 d += (s - d) * alpha >> 5;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2472 d &= 0x03e07c1f;
1428
5f52867ba65c Update for Visual C++ 6.0
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
2473 *dstp++ = (Uint16)(d | d >> 16);
1
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2474 }, width);
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2475 srcp += srcskip;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2476 dstp += dstskip;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
2477 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2478 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2479 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2480
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2481 /* fast ARGB8888->RGB565 blending with pixel alpha */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2482 static void BlitARGBto565PixelAlpha(SDL_BlitInfo *info)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2483 {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2484 int width = info->d_width;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2485 int height = info->d_height;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2486 Uint32 *srcp = (Uint32 *)info->s_pixels;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2487 int srcskip = info->s_skip >> 2;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2488 Uint16 *dstp = (Uint16 *)info->d_pixels;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2489 int dstskip = info->d_skip >> 1;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2490
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2491 while(height--) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2492 DUFFS_LOOP4({
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2493 Uint32 s = *srcp;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2494 unsigned alpha = s >> 27; /* downscale alpha to 5 bits */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2495 /* FIXME: Here we special-case opaque alpha since the
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2496 compositioning used (>>8 instead of /255) doesn't handle
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2497 it correctly. Also special-case alpha=0 for speed?
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2498 Benchmark this! */
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2499 if(alpha) {
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2500 if(alpha == (SDL_ALPHA_OPAQUE >> 3)) {
1428
5f52867ba65c Update for Visual C++ 6.0
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
2501 *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
2502 } else {
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2503 Uint32 d = *dstp;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2504 /*
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2505 * convert source and destination to G0RAB65565
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2506 * and blend all components at the same time
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2507 */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2508 s = ((s & 0xfc00) << 11) + (s >> 8 & 0xf800)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2509 + (s >> 3 & 0x1f);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2510 d = (d | d << 16) & 0x07e0f81f;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2511 d += (s - d) * alpha >> 5;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2512 d &= 0x07e0f81f;
1428
5f52867ba65c Update for Visual C++ 6.0
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
2513 *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
2514 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2515 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2516 srcp++;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2517 dstp++;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2518 }, width);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2519 srcp += srcskip;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2520 dstp += dstskip;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2521 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2522 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2523
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2524 /* fast ARGB8888->RGB555 blending with pixel alpha */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2525 static void BlitARGBto555PixelAlpha(SDL_BlitInfo *info)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2526 {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2527 int width = info->d_width;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2528 int height = info->d_height;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2529 Uint32 *srcp = (Uint32 *)info->s_pixels;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2530 int srcskip = info->s_skip >> 2;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2531 Uint16 *dstp = (Uint16 *)info->d_pixels;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2532 int dstskip = info->d_skip >> 1;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2533
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2534 while(height--) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2535 DUFFS_LOOP4({
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2536 unsigned alpha;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2537 Uint32 s = *srcp;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2538 alpha = s >> 27; /* downscale alpha to 5 bits */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2539 /* FIXME: Here we special-case opaque alpha since the
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2540 compositioning used (>>8 instead of /255) doesn't handle
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2541 it correctly. Also special-case alpha=0 for speed?
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2542 Benchmark this! */
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2543 if(alpha) {
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2544 if(alpha == (SDL_ALPHA_OPAQUE >> 3)) {
1428
5f52867ba65c Update for Visual C++ 6.0
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
2545 *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
2546 } else {
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2547 Uint32 d = *dstp;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2548 /*
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2549 * convert source and destination to G0RAB65565
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2550 * and blend all components at the same time
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2551 */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2552 s = ((s & 0xf800) << 10) + (s >> 9 & 0x7c00)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2553 + (s >> 3 & 0x1f);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2554 d = (d | d << 16) & 0x03e07c1f;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2555 d += (s - d) * alpha >> 5;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2556 d &= 0x03e07c1f;
1428
5f52867ba65c Update for Visual C++ 6.0
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
2557 *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
2558 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2559 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2560 srcp++;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2561 dstp++;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2562 }, width);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2563 srcp += srcskip;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2564 dstp += dstskip;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2565 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2566 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2567
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2568 /* General (slow) N->N blending with per-surface alpha */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2569 static void BlitNtoNSurfaceAlpha(SDL_BlitInfo *info)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2570 {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2571 int width = info->d_width;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2572 int height = info->d_height;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2573 Uint8 *src = info->s_pixels;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2574 int srcskip = info->s_skip;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2575 Uint8 *dst = info->d_pixels;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2576 int dstskip = info->d_skip;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2577 SDL_PixelFormat *srcfmt = info->src;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2578 SDL_PixelFormat *dstfmt = info->dst;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2579 int srcbpp = srcfmt->BytesPerPixel;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2580 int dstbpp = dstfmt->BytesPerPixel;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2581 unsigned sA = srcfmt->alpha;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2582 unsigned dA = dstfmt->Amask ? SDL_ALPHA_OPAQUE : 0;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2583
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2584 if(sA) {
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2585 while ( height-- ) {
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2586 DUFFS_LOOP4(
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2587 {
1162
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents: 1047
diff changeset
2588 Uint32 Pixel;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2589 unsigned sR;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2590 unsigned sG;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2591 unsigned sB;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2592 unsigned dR;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2593 unsigned dG;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2594 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
2595 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
2596 DISEMBLE_RGB(dst, dstbpp, dstfmt, Pixel, dR, dG, dB);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2597 ALPHA_BLEND(sR, sG, sB, sA, dR, dG, dB);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2598 ASSEMBLE_RGBA(dst, dstbpp, dstfmt, dR, dG, dB, dA);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2599 src += srcbpp;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2600 dst += dstbpp;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2601 },
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2602 width);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2603 src += srcskip;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2604 dst += dstskip;
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2605 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2606 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2607 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2608
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2609 /* General (slow) colorkeyed N->N blending with per-surface alpha */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2610 static void BlitNtoNSurfaceAlphaKey(SDL_BlitInfo *info)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2611 {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2612 int width = info->d_width;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2613 int height = info->d_height;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2614 Uint8 *src = info->s_pixels;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2615 int srcskip = info->s_skip;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2616 Uint8 *dst = info->d_pixels;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2617 int dstskip = info->d_skip;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2618 SDL_PixelFormat *srcfmt = info->src;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2619 SDL_PixelFormat *dstfmt = info->dst;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2620 Uint32 ckey = srcfmt->colorkey;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2621 int srcbpp = srcfmt->BytesPerPixel;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2622 int dstbpp = dstfmt->BytesPerPixel;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2623 unsigned sA = srcfmt->alpha;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2624 unsigned dA = dstfmt->Amask ? SDL_ALPHA_OPAQUE : 0;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2625
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2626 while ( height-- ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2627 DUFFS_LOOP4(
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2628 {
1162
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents: 1047
diff changeset
2629 Uint32 Pixel;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2630 unsigned sR;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2631 unsigned sG;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2632 unsigned sB;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2633 unsigned dR;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2634 unsigned dG;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2635 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
2636 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
2637 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
2638 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
2639 DISEMBLE_RGB(dst, dstbpp, dstfmt, Pixel, dR, dG, dB);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2640 ALPHA_BLEND(sR, sG, sB, sA, dR, dG, dB);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2641 ASSEMBLE_RGBA(dst, dstbpp, dstfmt, dR, dG, dB, dA);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2642 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2643 src += srcbpp;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2644 dst += dstbpp;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2645 },
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2646 width);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2647 src += srcskip;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2648 dst += dstskip;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2649 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2650 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2651
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2652 /* General (slow) N->N blending with pixel alpha */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2653 static void BlitNtoNPixelAlpha(SDL_BlitInfo *info)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2654 {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2655 int width = info->d_width;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2656 int height = info->d_height;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2657 Uint8 *src = info->s_pixels;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2658 int srcskip = info->s_skip;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2659 Uint8 *dst = info->d_pixels;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2660 int dstskip = info->d_skip;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2661 SDL_PixelFormat *srcfmt = info->src;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2662 SDL_PixelFormat *dstfmt = info->dst;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2663
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2664 int srcbpp;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2665 int dstbpp;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2666
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2667 /* Set up some basic variables */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2668 srcbpp = srcfmt->BytesPerPixel;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2669 dstbpp = dstfmt->BytesPerPixel;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2670
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2671 /* FIXME: for 8bpp source alpha, this doesn't get opaque values
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2672 quite right. for <8bpp source alpha, it gets them very wrong
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2673 (check all macros!)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2674 It is unclear whether there is a good general solution that doesn't
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2675 need a branch (or a divide). */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2676 while ( height-- ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2677 DUFFS_LOOP4(
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2678 {
1162
2651158f59b8 Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents: 1047
diff changeset
2679 Uint32 Pixel;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2680 unsigned sR;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2681 unsigned sG;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2682 unsigned sB;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2683 unsigned dR;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2684 unsigned dG;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2685 unsigned dB;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2686 unsigned sA;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2687 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
2688 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
2689 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
2690 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
2691 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
2692 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
2693 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2694 src += srcbpp;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2695 dst += dstbpp;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2696 },
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2697 width);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2698 src += srcskip;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2699 dst += dstskip;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2700 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2701 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2702
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2703
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2704 SDL_loblit SDL_CalculateAlphaBlit(SDL_Surface *surface, int blit_index)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2705 {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2706 SDL_PixelFormat *sf = surface->format;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2707 SDL_PixelFormat *df = surface->map->dst->format;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2708
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2709 if(sf->Amask == 0) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2710 if((surface->flags & SDL_SRCCOLORKEY) == SDL_SRCCOLORKEY) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2711 if(df->BytesPerPixel == 1)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2712 return BlitNto1SurfaceAlphaKey;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2713 else
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
2714 #if SDL_ALTIVEC_BLITTERS
1240
3b8a43c428bb From Bug #36:
Ryan C. Gordon <icculus@icculus.org>
parents: 1175
diff changeset
2715 if (sf->BytesPerPixel == 4 && df->BytesPerPixel == 4 &&
3b8a43c428bb From Bug #36:
Ryan C. Gordon <icculus@icculus.org>
parents: 1175
diff changeset
2716 !(surface->map->dst->flags & SDL_HWSURFACE) && SDL_HasAltiVec())
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
2717 return Blit32to32SurfaceAlphaKeyAltivec;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
2718 else
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
2719 #endif
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
2720 return BlitNtoNSurfaceAlphaKey;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2721 } else {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2722 /* Per-surface alpha blits */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2723 switch(df->BytesPerPixel) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2724 case 1:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2725 return BlitNto1SurfaceAlpha;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2726
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2727 case 2:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2728 if(surface->map->identity) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2729 if(df->Gmask == 0x7e0)
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2730 {
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
2731 #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
2732 if(SDL_HasMMX())
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2733 return Blit565to565SurfaceAlphaMMX;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2734 else
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2735 #endif
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2736 return Blit565to565SurfaceAlpha;
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2737 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2738 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
2739 {
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
2740 #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
2741 if(SDL_HasMMX())
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2742 return Blit555to555SurfaceAlphaMMX;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2743 else
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2744 #endif
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2745 return Blit555to555SurfaceAlpha;
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2746 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2747 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2748 return BlitNtoNSurfaceAlpha;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2749
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2750 case 4:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2751 if(sf->Rmask == df->Rmask
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2752 && sf->Gmask == df->Gmask
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2753 && sf->Bmask == df->Bmask
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2754 && sf->BytesPerPixel == 4)
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2755 {
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
2756 #if MMX_ASMBLIT
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2757 if(sf->Rshift % 8 == 0
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2758 && sf->Gshift % 8 == 0
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2759 && sf->Bshift % 8 == 0
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2760 && SDL_HasMMX())
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2761 return BlitRGBtoRGBSurfaceAlphaMMX;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2762 #endif
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2763 if((sf->Rmask | sf->Gmask | sf->Bmask) == 0xffffff)
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2764 {
1617
b255b4058d37 Patch from Alex to fix reverted code
Sam Lantinga <slouken@libsdl.org>
parents: 1546
diff changeset
2765 #if SDL_ALTIVEC_BLITTERS
b255b4058d37 Patch from Alex to fix reverted code
Sam Lantinga <slouken@libsdl.org>
parents: 1546
diff changeset
2766 if(!(surface->map->dst->flags & SDL_HWSURFACE)
b255b4058d37 Patch from Alex to fix reverted code
Sam Lantinga <slouken@libsdl.org>
parents: 1546
diff changeset
2767 && SDL_HasAltiVec())
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2768 return BlitRGBtoRGBSurfaceAlphaAltivec;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2769 #endif
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2770 return BlitRGBtoRGBSurfaceAlpha;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2771 }
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2772 }
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2773 #if SDL_ALTIVEC_BLITTERS
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2774 if((sf->BytesPerPixel == 4) &&
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2775 !(surface->map->dst->flags & SDL_HWSURFACE) && SDL_HasAltiVec())
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2776 return Blit32to32SurfaceAlphaAltivec;
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2777 else
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2778 #endif
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2779 return BlitNtoNSurfaceAlpha;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2780
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2781 case 3:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2782 default:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2783 return BlitNtoNSurfaceAlpha;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2784 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2785 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2786 } else {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2787 /* Per-pixel alpha blits */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2788 switch(df->BytesPerPixel) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2789 case 1:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2790 return BlitNto1PixelAlpha;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2791
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2792 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
2793 #if SDL_ALTIVEC_BLITTERS
1240
3b8a43c428bb From Bug #36:
Ryan C. Gordon <icculus@icculus.org>
parents: 1175
diff changeset
2794 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
2795 df->Gmask == 0x7e0 &&
1240
3b8a43c428bb From Bug #36:
Ryan C. Gordon <icculus@icculus.org>
parents: 1175
diff changeset
2796 df->Bmask == 0x1f && SDL_HasAltiVec())
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
2797 return Blit32to565PixelAlphaAltivec;
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
2798 else
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
2799 #endif
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2800 if(sf->BytesPerPixel == 4 && sf->Amask == 0xff000000
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2801 && sf->Gmask == 0xff00
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2802 && ((sf->Rmask == 0xff && df->Rmask == 0x1f)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2803 || (sf->Bmask == 0xff && df->Bmask == 0x1f))) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2804 if(df->Gmask == 0x7e0)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2805 return BlitARGBto565PixelAlpha;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2806 else if(df->Gmask == 0x3e0)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2807 return BlitARGBto555PixelAlpha;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2808 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2809 return BlitNtoNPixelAlpha;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2810
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2811 case 4:
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2812 if(sf->Rmask == df->Rmask
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2813 && sf->Gmask == df->Gmask
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2814 && sf->Bmask == df->Bmask
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2815 && sf->BytesPerPixel == 4)
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2816 {
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
2817 #if MMX_ASMBLIT
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2818 if(sf->Rshift % 8 == 0
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2819 && sf->Gshift % 8 == 0
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2820 && sf->Bshift % 8 == 0
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2821 && sf->Ashift % 8 == 0
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2822 && sf->Aloss == 0)
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2823 {
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2824 if(SDL_Has3DNow())
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2825 return BlitRGBtoRGBPixelAlphaMMX3DNOW;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2826 if(SDL_HasMMX())
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2827 return BlitRGBtoRGBPixelAlphaMMX;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2828 }
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2829 #endif
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2830 if(sf->Amask == 0xff000000)
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2831 {
1617
b255b4058d37 Patch from Alex to fix reverted code
Sam Lantinga <slouken@libsdl.org>
parents: 1546
diff changeset
2832 #if SDL_ALTIVEC_BLITTERS
b255b4058d37 Patch from Alex to fix reverted code
Sam Lantinga <slouken@libsdl.org>
parents: 1546
diff changeset
2833 if(!(surface->map->dst->flags & SDL_HWSURFACE)
b255b4058d37 Patch from Alex to fix reverted code
Sam Lantinga <slouken@libsdl.org>
parents: 1546
diff changeset
2834 && SDL_HasAltiVec())
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2835 return BlitRGBtoRGBPixelAlphaAltivec;
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
2836 #endif
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2837 return BlitRGBtoRGBPixelAlpha;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2838 }
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
2839 }
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
2840 #if SDL_ALTIVEC_BLITTERS
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2841 if (sf->Amask && sf->BytesPerPixel == 4 &&
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2842 !(surface->map->dst->flags & SDL_HWSURFACE) && SDL_HasAltiVec())
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2843 return Blit32to32PixelAlphaAltivec;
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2844 else
1047
ffaaf7ecf685 Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents: 880
diff changeset
2845 #endif
1542
a8bf1aa21020 Fixed bug #15
Sam Lantinga <slouken@libsdl.org>
parents: 1487
diff changeset
2846 return BlitNtoNPixelAlpha;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2847
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2848 case 3:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2849 default:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2850 return BlitNtoNPixelAlpha;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2851 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2852 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2853 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
2854