annotate src/video/SDL_blit_A.c @ 721:ab0656314eef

Date: Thu, 18 Sep 2003 14:24:35 -0400 From: Scott Watson Subject: [SDL] Improper Windows message routine calling If this hasn't been caught yet, there's an improper method of calling a user's window message routine in the various SDL_xxevents.c files. Calling it improperly can cause a crash under at least XP.
author Sam Lantinga <slouken@libsdl.org>
date Sun, 21 Sep 2003 18:40:51 +0000
parents f90d80d68071
children 22dbf364c017
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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f6ffac90895c Updated copyright information for 2002
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3 Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002 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 Library General Public
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7 License as published by the Free Software Foundation; either
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8 version 2 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 Library 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 Library General Public
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16 License along with this library; if not, write to the Free
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17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 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
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23 #ifdef SAVE_RCSID
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24 static char rcsid =
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25 "@(#) $Id$";
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26 #endif
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27
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28 #include <stdio.h>
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29
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30 #include "SDL_types.h"
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31 #include "SDL_video.h"
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32 #include "SDL_blit.h"
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33
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34 #if defined(i386) && defined(__GNUC__) && defined(USE_ASMBLIT)
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35 #include "mmx.h"
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36 /* Function to check the CPU flags */
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37 #define MMX_CPU 0x800000
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38 #define TDNOW_CPU 0x80000000
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39 #define CPU_Flags() Hermes_X86_CPU()
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40 #define X86_ASSEMBLER
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41 #define HermesConverterInterface void
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42 #define HermesClearInterface void
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43 #define STACKCALL
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44 #include "HeadX86.h"
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45 #endif
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46
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47 /* Functions to perform alpha blended blitting */
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48
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49 /* N->1 blending with per-surface alpha */
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50 static void BlitNto1SurfaceAlpha(SDL_BlitInfo *info)
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51 {
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52 int width = info->d_width;
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53 int height = info->d_height;
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54 Uint8 *src = info->s_pixels;
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55 int srcskip = info->s_skip;
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56 Uint8 *dst = info->d_pixels;
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57 int dstskip = info->d_skip;
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58 Uint8 *palmap = info->table;
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59 SDL_PixelFormat *srcfmt = info->src;
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60 SDL_PixelFormat *dstfmt = info->dst;
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61 int srcbpp = srcfmt->BytesPerPixel;
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62
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63 const unsigned A = srcfmt->alpha;
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64
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65 while ( height-- ) {
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66 DUFFS_LOOP4(
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67 {
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68 Uint32 pixel;
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69 unsigned sR;
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70 unsigned sG;
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71 unsigned sB;
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72 unsigned dR;
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73 unsigned dG;
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74 unsigned dB;
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75 DISEMBLE_RGB(src, srcbpp, srcfmt, pixel, sR, sG, sB);
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76 dR = dstfmt->palette->colors[*dst].r;
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77 dG = dstfmt->palette->colors[*dst].g;
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78 dB = dstfmt->palette->colors[*dst].b;
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79 ALPHA_BLEND(sR, sG, sB, A, dR, dG, dB);
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80 dR &= 0xff;
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81 dG &= 0xff;
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82 dB &= 0xff;
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83 /* Pack RGB into 8bit pixel */
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84 if ( palmap == NULL ) {
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85 *dst =((dR>>5)<<(3+2))|
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86 ((dG>>5)<<(2))|
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87 ((dB>>6)<<(0));
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88 } else {
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89 *dst = palmap[((dR>>5)<<(3+2))|
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90 ((dG>>5)<<(2)) |
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91 ((dB>>6)<<(0))];
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92 }
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93 dst++;
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94 src += srcbpp;
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95 },
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96 width);
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97 src += srcskip;
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98 dst += dstskip;
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99 }
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100 }
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101
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102 /* N->1 blending with pixel alpha */
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103 static void BlitNto1PixelAlpha(SDL_BlitInfo *info)
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104 {
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105 int width = info->d_width;
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106 int height = info->d_height;
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107 Uint8 *src = info->s_pixels;
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108 int srcskip = info->s_skip;
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109 Uint8 *dst = info->d_pixels;
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110 int dstskip = info->d_skip;
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111 Uint8 *palmap = info->table;
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112 SDL_PixelFormat *srcfmt = info->src;
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113 SDL_PixelFormat *dstfmt = info->dst;
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114 int srcbpp = srcfmt->BytesPerPixel;
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115
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116 /* FIXME: fix alpha bit field expansion here too? */
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117 while ( height-- ) {
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118 DUFFS_LOOP4(
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119 {
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120 Uint32 pixel;
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121 unsigned sR;
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122 unsigned sG;
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123 unsigned sB;
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124 unsigned sA;
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125 unsigned dR;
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126 unsigned dG;
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127 unsigned dB;
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128 DISEMBLE_RGBA(src,srcbpp,srcfmt,pixel,sR,sG,sB,sA);
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129 dR = dstfmt->palette->colors[*dst].r;
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130 dG = dstfmt->palette->colors[*dst].g;
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131 dB = dstfmt->palette->colors[*dst].b;
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132 ALPHA_BLEND(sR, sG, sB, sA, dR, dG, dB);
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133 dR &= 0xff;
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134 dG &= 0xff;
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135 dB &= 0xff;
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136 /* Pack RGB into 8bit pixel */
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137 if ( palmap == NULL ) {
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138 *dst =((dR>>5)<<(3+2))|
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139 ((dG>>5)<<(2))|
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140 ((dB>>6)<<(0));
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141 } else {
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142 *dst = palmap[((dR>>5)<<(3+2))|
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143 ((dG>>5)<<(2)) |
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144 ((dB>>6)<<(0)) ];
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145 }
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146 dst++;
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147 src += srcbpp;
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148 },
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149 width);
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150 src += srcskip;
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151 dst += dstskip;
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152 }
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153 }
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154
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155 /* colorkeyed N->1 blending with per-surface alpha */
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156 static void BlitNto1SurfaceAlphaKey(SDL_BlitInfo *info)
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157 {
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158 int width = info->d_width;
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159 int height = info->d_height;
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160 Uint8 *src = info->s_pixels;
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161 int srcskip = info->s_skip;
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162 Uint8 *dst = info->d_pixels;
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163 int dstskip = info->d_skip;
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164 Uint8 *palmap = info->table;
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165 SDL_PixelFormat *srcfmt = info->src;
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166 SDL_PixelFormat *dstfmt = info->dst;
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167 int srcbpp = srcfmt->BytesPerPixel;
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168 Uint32 ckey = srcfmt->colorkey;
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169
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170 const int A = srcfmt->alpha;
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171
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172 while ( height-- ) {
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173 DUFFS_LOOP(
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174 {
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175 Uint32 pixel;
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176 unsigned sR;
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177 unsigned sG;
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178 unsigned sB;
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179 unsigned dR;
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180 unsigned dG;
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181 unsigned dB;
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182 DISEMBLE_RGB(src, srcbpp, srcfmt, pixel, sR, sG, sB);
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183 if ( pixel != ckey ) {
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184 dR = dstfmt->palette->colors[*dst].r;
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185 dG = dstfmt->palette->colors[*dst].g;
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186 dB = dstfmt->palette->colors[*dst].b;
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187 ALPHA_BLEND(sR, sG, sB, A, dR, dG, dB);
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188 dR &= 0xff;
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189 dG &= 0xff;
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190 dB &= 0xff;
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191 /* Pack RGB into 8bit pixel */
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192 if ( palmap == NULL ) {
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193 *dst =((dR>>5)<<(3+2))|
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194 ((dG>>5)<<(2)) |
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195 ((dB>>6)<<(0));
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196 } else {
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197 *dst = palmap[((dR>>5)<<(3+2))|
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198 ((dG>>5)<<(2)) |
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199 ((dB>>6)<<(0)) ];
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200 }
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201 }
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202 dst++;
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203 src += srcbpp;
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204 },
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205 width);
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206 src += srcskip;
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207 dst += dstskip;
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208 }
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209 }
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210
689
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211 #if defined(i386) && defined(__GNUC__) && defined(USE_ASMBLIT)
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212 /* fast RGB888->(A)RGB888 blending with surface alpha=128 special case */
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213 static void BlitRGBtoRGBSurfaceAlpha128MMX(SDL_BlitInfo *info)
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214 {
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215 int width = info->d_width;
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216 int height = info->d_height;
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217 Uint32 *srcp = (Uint32 *)info->s_pixels;
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218 int srcskip = info->s_skip >> 2;
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219 Uint32 *dstp = (Uint32 *)info->d_pixels;
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220 int dstskip = info->d_skip >> 2;
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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 */
689
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226 movq_m2r(*load, mm3); /* !alpha128 mask -> mm3 */
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227 *(Uint64 *)load = 0xFF000000FF000000ULL;/* dst alpha mask */
689
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228 movq_m2r(*load, mm7); /* 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)) | 0xff000000;
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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 psrld_i2r(1, mm5); /* mm5 >> 1 -> mm5 */
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247
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248 pand_r2r(mm1, mm2); /* src & dst -> mm2 */
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249 pand_r2r(mm3, mm2); /* mm2 & !mask -> mm2 */
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250 paddd_r2r(mm5, mm2); /* mm5 + mm2 -> mm2 */
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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 unsigned alpha = info->src->alpha;
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266 if(alpha == 128) {
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267 BlitRGBtoRGBSurfaceAlpha128MMX(info);
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268 } else {
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269 int width = info->d_width;
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270 int height = info->d_height;
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271 Uint32 *srcp = (Uint32 *)info->s_pixels;
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272 int srcskip = info->s_skip >> 2;
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273 Uint32 *dstp = (Uint32 *)info->d_pixels;
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274 int dstskip = info->d_skip >> 2;
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275 Uint8 load[8] = {alpha, alpha, alpha, alpha,
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276 alpha, alpha, alpha, alpha};
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277
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278 movq_m2r(*load, mm4); /* alpha -> mm4 */
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279 *(Uint64 *)load = 0x00FF00FF00FF00FFULL;
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280 movq_m2r(*load, mm3); /* mask -> mm3 */
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281 pand_r2r(mm3, mm4); /* mm4 & mask -> 0A0A0A0A -> mm4 */
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282 *(Uint64 *)load = 0xFF000000FF000000ULL;/* dst alpha mask */
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283 movq_m2r(*load, mm7); /* dst alpha mask -> mm7 */
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284
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285 while(height--) {
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286 DUFFS_LOOP_DOUBLE2({
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287 /* One Pixel Blend */
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288 movd_m2r((*srcp), mm1);/* src(ARGB) -> mm1 (0000ARGB)*/
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289 punpcklbw_r2r(mm1, mm1); /* AARRGGBB -> mm1 */
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290 pand_r2r(mm3, mm1); /* 0A0R0G0B -> mm1 */
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291
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292 movd_m2r((*dstp), mm2);/* dst(ARGB) -> mm2 (0000ARGB)*/
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293 movq_r2r(mm2, mm6);/* dst(ARGB) -> mm6 (0000ARGB)*/
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294 punpcklbw_r2r(mm2, mm2); /* AARRGGBB -> mm2 */
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295 pand_r2r(mm3, mm2); /* 0A0R0G0B -> mm2 */
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diff changeset
296
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297 psubw_r2r(mm2, mm1);/* src - dst -> mm1 */
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298 pmullw_r2r(mm4, mm1); /* mm1 * alpha -> mm1 */
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299 psrlw_i2r(8, mm1); /* mm1 >> 8 -> mm1 */
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300 paddw_r2r(mm1, mm2); /* mm1 + mm2(dst) -> mm2 */
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301 pand_r2r(mm3, mm2); /* 0A0R0G0B -> mm2 */
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302 packuswb_r2r(mm2, mm2); /* ARGBARGB -> mm2 */
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303 por_r2r(mm7, mm2); /* mm7(full alpha) | mm2 -> mm2 */
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304 movd_r2m(mm2, *dstp);/* mm2 -> pixel */
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305 ++srcp;
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306 ++dstp;
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307 },{
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308 /* Two Pixels Blend */
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309 movq_m2r((*srcp), mm0);/* 2 x src -> mm0(ARGBARGB)*/
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310 movq_r2r(mm0, mm1); /* 2 x src -> mm1(ARGBARGB) */
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311 punpcklbw_r2r(mm0, mm0); /* low - AARRGGBB -> mm0 */
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312 pand_r2r(mm3, mm0); /* 0A0R0G0B -> mm0(src1) */
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313 punpckhbw_r2r(mm1, mm1); /* high - AARRGGBB -> mm1 */
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314 pand_r2r(mm3, mm1); /* 0A0R0G0B -> mm1(src2) */
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315
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316 movq_m2r((*dstp), mm2);/* 2 x dst -> mm2(ARGBARGB) */
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317 movq_r2r(mm2, mm5); /* 2 x dst -> mm5(ARGBARGB) */
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318 movq_r2r(mm2, mm6); /* 2 x dst -> mm6(ARGBARGB) */
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319 punpcklbw_r2r(mm2, mm2); /* low - AARRGGBB -> mm2 */
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320 punpckhbw_r2r(mm6, mm6); /* high - AARRGGBB -> mm6 */
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321 pand_r2r(mm3, mm2); /* 0A0R0G0B -> mm2(dst1) */
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322
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323 psubw_r2r(mm2, mm0);/* src1 - dst1 -> mm0 */
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324 pmullw_r2r(mm4, mm0); /* mm0 * alpha -> mm0 */
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325 pand_r2r(mm3, mm6); /* 0A0R0G0B -> mm6(dst2) */
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326 psrlw_i2r(8, mm0); /* mm0 >> 8 -> mm1 */
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327 psubw_r2r(mm6, mm1);/* src2 - dst2 -> mm1 */
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328 pmullw_r2r(mm4, mm1); /* mm1 * alpha -> mm1 */
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329 paddw_r2r(mm0, mm2); /* mm0 + mm2(dst1) -> mm2 */
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330 psrlw_i2r(8, mm1); /* mm1 >> 8 -> mm0 */
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331 pand_r2r(mm3, mm2); /* 0A0R0G0B -> mm2 */
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332 paddw_r2r(mm1, mm6); /* mm1 + mm6(dst2) -> mm6 */
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333 pand_r2r(mm3, mm6); /* 0A0R0G0B -> mm6 */
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334 packuswb_r2r(mm2, mm2); /* ARGBARGB -> mm2 */
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335 packuswb_r2r(mm6, mm6); /* ARGBARGB -> mm6 */
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336 psrlq_i2r(32, mm2); /* mm2 >> 32 -> mm2 */
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337 psllq_i2r(32, mm6); /* mm6 << 32 -> mm6 */
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338 por_r2r(mm6, mm2); /* mm6 | mm2 -> mm2 */
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339 por_r2r(mm7, mm2); /* mm7(full alpha) | mm2 -> mm2 */
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340 movq_r2m(mm2, *dstp);/* mm2 -> 2 x pixel */
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341 srcp += 2;
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342 dstp += 2;
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343 }, width);
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344 srcp += srcskip;
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345 dstp += dstskip;
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346 }
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347 emms();
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348 }
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349 }
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350
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351 /* fast ARGB888->(A)RGB888 blending with pixel alpha */
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352 static void BlitRGBtoRGBPixelAlphaMMX(SDL_BlitInfo *info)
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353 {
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354 int width = info->d_width;
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355 int height = info->d_height;
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356 Uint32 *srcp = (Uint32 *)info->s_pixels;
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357 int srcskip = info->s_skip >> 2;
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358 Uint32 *dstp = (Uint32 *)info->d_pixels;
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359 int dstskip = info->d_skip >> 2;
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360 Uint32 alpha = 0;
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361 Uint8 load[8];
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362
720
f90d80d68071 N Sep 17 8791 Sam Lantinga Re: tks source released
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363 *(Uint64 *)load = 0x00FF00FF00FF00FFULL;
689
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364 movq_m2r(*load, mm3); /* mask -> mm2 */
720
f90d80d68071 N Sep 17 8791 Sam Lantinga Re: tks source released
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365 *(Uint64 *)load = 0x00FF000000000000ULL;
689
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366 movq_m2r(*load, mm7); /* dst alpha mask -> mm2 */
720
f90d80d68071 N Sep 17 8791 Sam Lantinga Re: tks source released
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diff changeset
367 *(Uint64 *)load = 0x00FFFFFF00FFFFFFULL;
689
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368 movq_m2r(*load, mm0); /* alpha 255 mask -> mm0 */
720
f90d80d68071 N Sep 17 8791 Sam Lantinga Re: tks source released
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369 *(Uint64 *)load = 0xFF000000FF000000ULL;
689
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370 movq_m2r(*load, mm6); /* alpha 255 !mask -> mm6 */
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371 while(height--) {
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372 DUFFS_LOOP4({
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373 alpha = *srcp;
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374 alpha >>= 24;
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375 /* FIXME: Here we special-case opaque alpha since the
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376 compositioning used (>>8 instead of /255) doesn't handle
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377 it correctly. Also special-case alpha=0 for speed?
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378 Benchmark this! */
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379 if(alpha) {
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380 if(alpha == SDL_ALPHA_OPAQUE) {
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381 movd_m2r((*srcp), mm1);/* src(ARGB) -> mm1 (0000ARGB)*/
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382 movd_m2r((*dstp), mm2);/* dst(ARGB) -> mm2 (0000ARGB)*/
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383 pand_r2r(mm0, mm1);
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384 pand_r2r(mm6, mm2);
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385 por_r2r(mm1, mm2);
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386 movd_r2m(mm2, (*dstp));
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387 } else {
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388 movd_m2r((*srcp), mm1);/* src(ARGB) -> mm1 (0000ARGB)*/
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389 punpcklbw_r2r(mm1, mm1); /* AARRGGBB -> mm1 */
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390 pand_r2r(mm3, mm1); /* 0A0R0G0B -> mm1 */
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diff changeset
391
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392 movd_m2r((*dstp), mm2);/* dst(ARGB) -> mm2 (0000ARGB)*/
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393 punpcklbw_r2r(mm2, mm2); /* AARRGGBB -> mm2 */
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diff changeset
394 pand_r2r(mm3, mm2); /* 0A0R0G0B -> mm2 */
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diff changeset
395
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396 movq_r2r(mm2, mm5);/* mm2(0A0R0G0B) -> mm5 */
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397 pand_r2r(mm7, mm5); /* mm5 & dst alpha mask -> mm5(0A000000) */
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398 psrlq_i2r(24, mm5); /* mm5 >> 24 -> mm5 (0000A000)*/
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diff changeset
399
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400 movq_r2r(mm1, mm4);/* mm1(0A0R0G0B) -> mm4 */
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401 psrlq_i2r(48, mm4); /* mm4 >> 48 -> mm4(0000000A) */
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diff changeset
402 punpcklwd_r2r(mm4, mm4); /* 00000A0A -> mm4 */
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diff changeset
403 punpcklwd_r2r(mm4, mm4); /* 0A0A0A0A -> mm4 */
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diff changeset
404
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diff changeset
405 /* blend */
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diff changeset
406 psubw_r2r(mm2, mm1);/* src - dst -> mm1 */
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diff changeset
407 pmullw_r2r(mm4, mm1); /* mm1 * alpha -> mm1 */
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diff changeset
408 psrlw_i2r(8, mm1); /* mm1 >> 8 -> mm1 */
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diff changeset
409 paddw_r2r(mm1, mm2); /* mm1 + mm2(dst) -> mm2 */
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diff changeset
410 pand_r2r(mm3, mm2); /* 0A0R0G0B -> mm2 */
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diff changeset
411 packuswb_r2r(mm2, mm2); /* ARGBARGB -> mm2 */
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diff changeset
412 pand_r2r(mm0, mm2); /* 0RGB0RGB -> mm2 */
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diff changeset
413 por_r2r(mm5, mm2); /* dst alpha | mm2 -> mm2 */
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diff changeset
414 movd_r2m(mm2, *dstp);/* mm2 -> dst */
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diff changeset
415 }
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diff changeset
416 }
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diff changeset
417 ++srcp;
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diff changeset
418 ++dstp;
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diff changeset
419 }, width);
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diff changeset
420 srcp += srcskip;
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diff changeset
421 dstp += dstskip;
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diff changeset
422 }
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
423 emms();
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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parents: 297
diff changeset
424 }
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
425 #endif
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
426
1
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
427 /* 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
428 static void BlitRGBtoRGBSurfaceAlpha128(SDL_BlitInfo *info)
0
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parents:
diff changeset
429 {
74212992fb08 Initial revision
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parents:
diff changeset
430 int width = info->d_width;
74212992fb08 Initial revision
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parents:
diff changeset
431 int height = info->d_height;
74212992fb08 Initial revision
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parents:
diff changeset
432 Uint32 *srcp = (Uint32 *)info->s_pixels;
74212992fb08 Initial revision
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parents:
diff changeset
433 int srcskip = info->s_skip >> 2;
74212992fb08 Initial revision
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parents:
diff changeset
434 Uint32 *dstp = (Uint32 *)info->d_pixels;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
435 int dstskip = info->d_skip >> 2;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
436
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
437 while(height--) {
74212992fb08 Initial revision
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parents:
diff changeset
438 DUFFS_LOOP4({
1
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
439 Uint32 s = *srcp++;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
440 Uint32 d = *dstp;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
441 *dstp++ = ((((s & 0x00fefefe) + (d & 0x00fefefe)) >> 1)
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
442 + (s & d & 0x00010101)) | 0xff000000;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
443 }, width);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
444 srcp += srcskip;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
445 dstp += dstskip;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
446 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
447 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
448
1
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
449 /* 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
450 static void BlitRGBtoRGBSurfaceAlpha(SDL_BlitInfo *info)
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
451 {
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
452 unsigned alpha = info->src->alpha;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
453 if(alpha == 128) {
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
454 BlitRGBtoRGBSurfaceAlpha128(info);
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
455 } else {
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
456 int width = info->d_width;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
457 int height = info->d_height;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
458 Uint32 *srcp = (Uint32 *)info->s_pixels;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
459 int srcskip = info->s_skip >> 2;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
460 Uint32 *dstp = (Uint32 *)info->d_pixels;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
461 int dstskip = info->d_skip >> 2;
689
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diff changeset
462 Uint32 s;
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diff changeset
463 Uint32 d;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
464 Uint32 s1;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
465 Uint32 d1;
1
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
466
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
467 while(height--) {
689
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diff changeset
468 DUFFS_LOOP_DOUBLE2({
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
469 /* One Pixel Blend */
1
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
470 s = *srcp;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
471 d = *dstp;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
472 s1 = s & 0xff00ff;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
473 d1 = d & 0xff00ff;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
474 d1 = (d1 + ((s1 - d1) * alpha >> 8))
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
475 & 0xff00ff;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
476 s &= 0xff00;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
477 d &= 0xff00;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
478 d = (d + ((s - d) * alpha >> 8)) & 0xff00;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
479 *dstp = d1 | d | 0xff000000;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
480 ++srcp;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
481 ++dstp;
689
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diff changeset
482 },{
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
483 /* Two Pixels Blend */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
484 s = *srcp;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
485 d = *dstp;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
486 s1 = s & 0xff00ff;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
487 d1 = d & 0xff00ff;
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diff changeset
488 d1 += (s1 - d1) * alpha >> 8;
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diff changeset
489 d1 &= 0xff00ff;
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diff changeset
490
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
491 s = ((s & 0xff00) >> 8) |
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
492 ((srcp[1] & 0xff00) << 8);
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
493 d = ((d & 0xff00) >> 8) |
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diff changeset
494 ((dstp[1] & 0xff00) << 8);
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
495 d += (s - d) * alpha >> 8;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
496 d &= 0x00ff00ff;
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diff changeset
497
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
498 *dstp++ = d1 | ((d << 8) & 0xff00) | 0xff000000;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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parents: 297
diff changeset
499 ++srcp;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
500
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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parents: 297
diff changeset
501 s1 = *srcp;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
502 d1 = *dstp;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
503 s1 &= 0xff00ff;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
504 d1 &= 0xff00ff;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
505 d1 += (s1 - d1) * alpha >> 8;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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parents: 297
diff changeset
506 d1 &= 0xff00ff;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
507
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
508 *dstp = d1 | ((d >> 8) & 0xff00) | 0xff000000;
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parents: 297
diff changeset
509 ++srcp;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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parents: 297
diff changeset
510 ++dstp;
1
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
511 }, width);
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
512 srcp += srcskip;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
513 dstp += dstskip;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
514 }
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
515 }
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
516 }
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
517
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
518 /* fast ARGB888->(A)RGB888 blending with pixel alpha */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
519 static void BlitRGBtoRGBPixelAlpha(SDL_BlitInfo *info)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
520 {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
521 int width = info->d_width;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
522 int height = info->d_height;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
523 Uint32 *srcp = (Uint32 *)info->s_pixels;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
524 int srcskip = info->s_skip >> 2;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
525 Uint32 *dstp = (Uint32 *)info->d_pixels;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
526 int dstskip = info->d_skip >> 2;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
527
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
528 while(height--) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
529 DUFFS_LOOP4({
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
530 Uint32 dalpha;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
531 Uint32 d;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
532 Uint32 s1;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
533 Uint32 d1;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
534 Uint32 s = *srcp;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
535 Uint32 alpha = s >> 24;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
536 /* FIXME: Here we special-case opaque alpha since the
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
537 compositioning used (>>8 instead of /255) doesn't handle
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
538 it correctly. Also special-case alpha=0 for speed?
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
539 Benchmark this! */
689
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diff changeset
540 if(alpha) {
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
541 if(alpha == SDL_ALPHA_OPAQUE) {
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
542 *dstp = (s & 0x00ffffff) | (*dstp & 0xff000000);
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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parents: 297
diff changeset
543 } else {
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
544 /*
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
545 * take out the middle component (green), and process
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
546 * the other two in parallel. One multiply less.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
547 */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
548 d = *dstp;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
549 dalpha = d & 0xff000000;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
550 s1 = s & 0xff00ff;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
551 d1 = d & 0xff00ff;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
552 d1 = (d1 + ((s1 - d1) * alpha >> 8)) & 0xff00ff;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
553 s &= 0xff00;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
554 d &= 0xff00;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
555 d = (d + ((s - d) * alpha >> 8)) & 0xff00;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
556 *dstp = d1 | d | dalpha;
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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parents: 297
diff changeset
557 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
558 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
559 ++srcp;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
560 ++dstp;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
561 }, width);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
562 srcp += srcskip;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
563 dstp += dstskip;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
564 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
565 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
566
689
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parents: 297
diff changeset
567 #if defined(i386) && defined(__GNUC__) && defined(USE_ASMBLIT)
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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parents: 297
diff changeset
568 /* fast (as in MMX with prefetch) ARGB888->(A)RGB888 blending with pixel alpha */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
569 inline static void BlitRGBtoRGBPixelAlphaMMX3DNOW(SDL_BlitInfo *info)
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diff changeset
570 {
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
571 int width = info->d_width;
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diff changeset
572 int height = info->d_height;
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573 Uint32 *srcp = (Uint32 *)info->s_pixels;
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diff changeset
574 int srcskip = info->s_skip >> 2;
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575 Uint32 *dstp = (Uint32 *)info->d_pixels;
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576 int dstskip = info->d_skip >> 2;
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diff changeset
577
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diff changeset
578 Uint32 s;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
579 Uint32 alpha;
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580
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diff changeset
581 __asm__ (
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
582 /* make mm6 all zeros. */
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diff changeset
583 "pxor %%mm6, %%mm6\n"
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diff changeset
584
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diff changeset
585 /* Make a mask to preserve the alpha. */
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diff changeset
586 "pcmpeqb %%mm7, %%mm7\n\t" /* mm7(s) = FF FF FF FF | FF FF FF FF */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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587 "psrlq $16, %%mm7\n\t" /* mm7(s) = 00 00 FF FF | FF FF FF FF */
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diff changeset
588
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diff changeset
589 : );
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
590
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diff changeset
591 while(height--) {
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
592
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diff changeset
593 DUFFS_LOOP4({
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594
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diff changeset
595 __asm__ (
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
596 "prefetch 64(%0)\n"
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diff changeset
597 "prefetch 64(%1)\n"
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598 : : "r" (srcp), "r" (dstp) );
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599
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diff changeset
600 s = *srcp;
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diff changeset
601 alpha = s >> 24;
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diff changeset
602 /* FIXME: Here we special-case opaque alpha since the
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diff changeset
603 compositioning used (>>8 instead of /255) doesn't handle
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diff changeset
604 it correctly. Also special-case alpha=0 for speed?
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diff changeset
605 Benchmark this! */
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diff changeset
606
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diff changeset
607 if(alpha == SDL_ALPHA_OPAQUE) {
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diff changeset
608 *dstp = (s & 0x00ffffff) | (*dstp & 0xff000000);
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
609 }
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diff changeset
610
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
611 else {
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
612 __asm__ (
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
613 /* load in the source, and dst. */
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diff changeset
614 "movd (%0), %%mm0\n" /* mm0(s) = 0 0 0 0 | As Rs Gs Bs */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
615 "movd (%1), %%mm1\n" /* mm1(d) = 0 0 0 0 | Ad Rd Gd Bd */
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diff changeset
616
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
617 /* Move the src alpha into mm2 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
618
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
619 /* if supporting pshufw */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
620 /*"pshufw $0x55, %%mm0, %%mm2\n" */ /* mm2 = 0 As 0 As | 0 As 0 As */
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diff changeset
621 /*"psrlw $8, %%mm2\n" */
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diff changeset
622
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diff changeset
623 /* else: */
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diff changeset
624 "movq %%mm0, %%mm2\n"
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diff changeset
625 "psrld $24, %%mm2\n" /* mm2 = 0 0 0 0 | 0 0 0 As */
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diff changeset
626 "punpcklwd %%mm2, %%mm2\n" /* mm2 = 0 0 0 0 | 0 As 0 As */
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diff changeset
627 "punpckldq %%mm2, %%mm2\n" /* mm2 = 0 As 0 As | 0 As 0 As */
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diff changeset
628
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diff changeset
629 /* move the colors into words. */
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diff changeset
630 "punpcklbw %%mm6, %%mm0\n" /* mm0 = 0 As 0 Rs | 0 Gs 0 Bs */
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diff changeset
631 "punpcklbw %%mm6, %%mm1\n" /* mm0 = 0 Ad 0 Rd | 0 Gd 0 Bd */
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diff changeset
632
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diff changeset
633 /* src - dst */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
634 "psubw %%mm1, %%mm0\n" /* mm0 = As-Ad Rs-Rd | Gs-Gd Bs-Bd */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
635
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diff changeset
636 /* A * (src-dst) */
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diff changeset
637 "pmullw %%mm2, %%mm0\n" /* mm0 = As*As-d As*Rs-d | As*Gs-d As*Bs-d */
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diff changeset
638 "pand %%mm7, %%mm0\n" /* to preserve dest alpha */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
639 "psrlw $8, %%mm0\n" /* mm0 = Ac>>8 Rc>>8 | Gc>>8 Bc>>8 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
640 "paddb %%mm1, %%mm0\n" /* mm0 = Ac+Ad Rc+Rd | Gc+Gd Bc+Bd */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
641
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diff changeset
642 "packuswb %%mm0, %%mm0\n" /* mm0 = | Ac Rc Gc Bc */
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diff changeset
643
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diff changeset
644 "movd %%mm0, (%1)\n" /* result in mm0 */
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diff changeset
645
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diff changeset
646 : : "r" (srcp), "r" (dstp) );
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diff changeset
647
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
648 }
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
649 ++srcp;
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diff changeset
650 ++dstp;
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diff changeset
651 }, width);
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diff changeset
652 srcp += srcskip;
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diff changeset
653 dstp += dstskip;
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diff changeset
654 }
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diff changeset
655
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diff changeset
656 __asm__ (
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diff changeset
657 "emms\n"
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diff changeset
658 : );
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
659 }
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
660 #endif
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
661
1
cf2af46e9e2a Changes since SDL 1.2.0 release
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parents: 0
diff changeset
662 /* 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
663
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
664 /* 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
665 #define BLEND16_50(d, s, mask) \
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
666 ((((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
667
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
668 /* blend two 16 bit pixels at 50% */
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
669 #define BLEND2x16_50(d, s, mask) \
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
670 (((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
671 + (s & d & (~(mask | mask << 16))))
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
672
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
673 static void Blit16to16SurfaceAlpha128(SDL_BlitInfo *info, Uint16 mask)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
674 {
74212992fb08 Initial revision
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parents:
diff changeset
675 int width = info->d_width;
74212992fb08 Initial revision
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parents:
diff changeset
676 int height = info->d_height;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
677 Uint16 *srcp = (Uint16 *)info->s_pixels;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
678 int srcskip = info->s_skip >> 1;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
679 Uint16 *dstp = (Uint16 *)info->d_pixels;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
680 int dstskip = info->d_skip >> 1;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
681
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
682 while(height--) {
1
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
683 if(((unsigned long)srcp ^ (unsigned long)dstp) & 2) {
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
684 /*
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
685 * Source and destination not aligned, pipeline it.
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
686 * 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
687 * small ones
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
688 */
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
689 Uint32 prev_sw;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
690 int w = width;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
691
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
692 /* handle odd destination */
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
693 if((unsigned long)dstp & 2) {
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
694 Uint16 d = *dstp, s = *srcp;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
695 *dstp = BLEND16_50(d, s, mask);
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
696 dstp++;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
697 srcp++;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
698 w--;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
699 }
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
700 srcp++; /* srcp is now 32-bit aligned */
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
701
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
702 /* bootstrap pipeline with first halfword */
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
703 prev_sw = ((Uint32 *)srcp)[-1];
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
704
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
705 while(w > 1) {
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
706 Uint32 sw, dw, s;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
707 sw = *(Uint32 *)srcp;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
708 dw = *(Uint32 *)dstp;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
709 if(SDL_BYTEORDER == SDL_BIG_ENDIAN)
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
710 s = (prev_sw << 16) + (sw >> 16);
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
711 else
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
712 s = (prev_sw >> 16) + (sw << 16);
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
713 prev_sw = sw;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
714 *(Uint32 *)dstp = BLEND2x16_50(dw, s, mask);
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
715 dstp += 2;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
716 srcp += 2;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
717 w -= 2;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
718 }
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
719
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
720 /* final pixel if any */
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
721 if(w) {
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
722 Uint16 d = *dstp, s;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
723 if(SDL_BYTEORDER == SDL_BIG_ENDIAN)
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
724 s = prev_sw;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
725 else
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
726 s = prev_sw >> 16;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
727 *dstp = BLEND16_50(d, s, mask);
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
728 srcp++;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
729 dstp++;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
730 }
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
731 srcp += srcskip - 1;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
732 dstp += dstskip;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
733 } else {
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
734 /* source and destination are aligned */
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
735 int w = width;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
736
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
737 /* first odd pixel? */
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
738 if((unsigned long)srcp & 2) {
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
739 Uint16 d = *dstp, s = *srcp;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
740 *dstp = BLEND16_50(d, s, mask);
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
741 srcp++;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
742 dstp++;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
743 w--;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
744 }
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
745 /* 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
746
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
747 while(w > 1) {
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
748 Uint32 sw = *(Uint32 *)srcp;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
749 Uint32 dw = *(Uint32 *)dstp;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
750 *(Uint32 *)dstp = BLEND2x16_50(dw, sw, mask);
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
751 srcp += 2;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
752 dstp += 2;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
753 w -= 2;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
754 }
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
755
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
756 /* last odd pixel? */
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
757 if(w) {
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
758 Uint16 d = *dstp, s = *srcp;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
759 *dstp = BLEND16_50(d, s, mask);
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
760 srcp++;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
761 dstp++;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
762 }
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
763 srcp += srcskip;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
764 dstp += dstskip;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
765 }
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
766 }
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
767 }
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
768
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
769 #if defined(i386) && defined(__GNUC__) && defined(USE_ASMBLIT)
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
770 /* 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
771 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
772 {
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
773 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
774 if(alpha == 128) {
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
775 Blit16to16SurfaceAlpha128(info, 0xf7de);
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
776 } else {
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
777 int width = info->d_width;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
778 int height = info->d_height;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
779 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
780 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
781 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
782 int dstskip = info->d_skip >> 1;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
783 Uint32 s, d;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
784 Uint8 load[8];
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
785
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
786 alpha &= ~(1+2+4); /* cut alpha to get the exact same behaviour */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
787 *(Uint64 *)load = alpha;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
788 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
789
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
790 movq_m2r(*load, mm0); /* alpha(0000000A) -> mm0 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
791 punpcklwd_r2r(mm0, mm0); /* 00000A0A -> mm0 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
792 punpcklwd_r2r(mm0, mm0); /* 0A0A0A0A -> mm0 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
793
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
794 /* 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
795 *(Uint64 *)load = 0xF800F800F800F800ULL;
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
796 movq_m2r(*load, mm1); /* MASKRED -> mm1 */
720
f90d80d68071 N Sep 17 8791 Sam Lantinga Re: tks source released
Sam Lantinga <slouken@libsdl.org>
parents: 689
diff changeset
797 *(Uint64 *)load = 0x07E007E007E007E0ULL;
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
798 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
799 *(Uint64 *)load = 0x001F001F001F001FULL;
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
800 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
801 while(height--) {
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
802 DUFFS_LOOP_QUATRO2(
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
803 {
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
804 s = *srcp++;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
805 d = *dstp;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
806 /*
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
807 * 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
808 * 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
809 * components at the same time.
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
810 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
811 s = (s | s << 16) & 0x07e0f81f;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
812 d = (d | d << 16) & 0x07e0f81f;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
813 d += (s - d) * alpha >> 5;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
814 d &= 0x07e0f81f;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
815 *dstp++ = d | d >> 16;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
816 },{
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
817 s = *srcp++;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
818 d = *dstp;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
819 /*
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
820 * 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
821 * 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
822 * components at the same time.
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
823 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
824 s = (s | s << 16) & 0x07e0f81f;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
825 d = (d | d << 16) & 0x07e0f81f;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
826 d += (s - d) * alpha >> 5;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
827 d &= 0x07e0f81f;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
828 *dstp++ = d | d >> 16;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
829 s = *srcp++;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
830 d = *dstp;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
831 /*
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
832 * 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
833 * 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
834 * components at the same time.
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
835 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
836 s = (s | s << 16) & 0x07e0f81f;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
837 d = (d | d << 16) & 0x07e0f81f;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
838 d += (s - d) * alpha >> 5;
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diff changeset
839 d &= 0x07e0f81f;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
840 *dstp++ = d | d >> 16;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
841 },{
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
842 movq_m2r((*dstp), mm3);/* 4 dst pixels -> mm3 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
843 movq_m2r((*srcp), mm2);/* 4 src pixels -> mm2 */
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diff changeset
844
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
845 /* RED */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
846 movq_r2r(mm2, mm5); /* src -> mm5 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
847 pand_r2r(mm1 , mm5); /* src & MASKRED -> mm5 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
848 psrlq_i2r(11, mm5); /* mm5 >> 11 -> mm5 [000r 000r 000r 000r] */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
849
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diff changeset
850 movq_r2r(mm3, mm6); /* dst -> mm6 */
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diff changeset
851 pand_r2r(mm1 , mm6); /* dst & MASKRED -> mm6 */
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diff changeset
852 psrlq_i2r(11, mm6); /* mm6 >> 11 -> mm6 [000r 000r 000r 000r] */
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diff changeset
853
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
854 /* blend */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
855 psubw_r2r(mm6, mm5);/* src - dst -> mm5 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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parents: 297
diff changeset
856 pmullw_r2r(mm0, mm5); /* mm5 * alpha -> mm5 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
857 psrlw_i2r(8, mm5); /* mm5 >> 8 -> mm5 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
858 paddw_r2r(mm5, mm6); /* mm5 + mm6(dst) -> mm6 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
859 psllq_i2r(11, mm6); /* mm6 << 11 -> mm6 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
860 pand_r2r(mm1, mm6); /* mm6 & MASKRED -> mm6 */
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diff changeset
861
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diff changeset
862 movq_r2r(mm4, mm5); /* MASKGREEN -> mm5 */
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diff changeset
863 por_r2r(mm7, mm5); /* MASKBLUE | mm5 -> mm5 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
864 pand_r2r(mm5, mm3); /* mm3 & mm5(!MASKRED) -> mm3 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
865 por_r2r(mm6, mm3); /* save new reds in dsts */
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diff changeset
866
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
867 /* green */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
868 movq_r2r(mm2, mm5); /* src -> mm5 */
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diff changeset
869 pand_r2r(mm4 , mm5); /* src & MASKGREEN -> mm5 */
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diff changeset
870 psrlq_i2r(5, mm5); /* mm5 >> 5 -> mm5 [000g 000g 000g 000g] */
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diff changeset
871
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
872 movq_r2r(mm3, mm6); /* dst -> mm6 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
873 pand_r2r(mm4 , mm6); /* dst & MASKGREEN -> mm6 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
874 psrlq_i2r(5, mm6); /* mm6 >> 5 -> mm6 [000g 000g 000g 000g] */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
875
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
876 /* blend */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
877 psubw_r2r(mm6, mm5);/* src - dst -> mm5 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
878 pmullw_r2r(mm0, mm5); /* mm5 * alpha -> mm5 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
879 psrlw_i2r(8, mm5); /* mm5 >> 8 -> mm5 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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parents: 297
diff changeset
880 paddw_r2r(mm5, mm6); /* mm5 + mm6(dst) -> mm6 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
881 psllq_i2r(5, mm6); /* mm6 << 5 -> mm6 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
882 pand_r2r(mm4, mm6); /* mm6 & MASKGREEN -> mm6 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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parents: 297
diff changeset
883
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
884 movq_r2r(mm1, mm5); /* MASKRED -> mm5 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
885 por_r2r(mm7, mm5); /* MASKBLUE | mm5 -> mm5 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
886 pand_r2r(mm5, mm3); /* mm3 & mm5(!MASKGREEN) -> mm3 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
887 por_r2r(mm6, mm3); /* save new greens in dsts */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
888
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
889 /* blue */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
890 movq_r2r(mm2, mm5); /* src -> mm5 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
891 pand_r2r(mm7 , mm5); /* src & MASKRED -> mm5[000b 000b 000b 000b] */
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diff changeset
892
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
893 movq_r2r(mm3, mm6); /* dst -> mm6 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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parents: 297
diff changeset
894 pand_r2r(mm7 , mm6); /* dst & MASKBLUE -> mm6[000b 000b 000b 000b] */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
895
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diff changeset
896 /* blend */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
897 psubw_r2r(mm6, mm5);/* src - dst -> mm5 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
898 pmullw_r2r(mm0, mm5); /* mm5 * alpha -> mm5 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
899 psrlw_i2r(8, mm5); /* mm5 >> 8 -> mm5 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
900 paddw_r2r(mm5, mm6); /* mm5 + mm6(dst) -> mm6 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
901 pand_r2r(mm7, mm6); /* mm6 & MASKBLUE -> mm6 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
902
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
903 movq_r2r(mm1, mm5); /* MASKRED -> mm5 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
904 por_r2r(mm4, mm5); /* MASKGREEN | mm5 -> mm5 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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parents: 297
diff changeset
905 pand_r2r(mm5, mm3); /* mm3 & mm5(!MASKBLUE) -> mm3 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
906 por_r2r(mm6, mm3); /* save new blues in dsts */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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parents: 297
diff changeset
907
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
908 movq_r2m(mm3, *dstp);/* mm3 -> 4 dst pixels */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
909
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
910 srcp += 4;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
911 dstp += 4;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
912 }, width);
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
913 srcp += srcskip;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
914 dstp += dstskip;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
915 }
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
916 emms();
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
917 }
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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parents: 297
diff changeset
918 }
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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parents: 297
diff changeset
919
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
920 /* fast RGB555->RGB555 blending with surface alpha */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
921 static void Blit555to555SurfaceAlphaMMX(SDL_BlitInfo *info)
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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parents: 297
diff changeset
922 {
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
923 unsigned alpha = info->src->alpha; /* downscale alpha to 5 bits */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
924 if(alpha == 128) {
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
925 Blit16to16SurfaceAlpha128(info, 0xfbde);
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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parents: 297
diff changeset
926 } else {
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
927 int width = info->d_width;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
928 int height = info->d_height;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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parents: 297
diff changeset
929 Uint16 *srcp = (Uint16 *)info->s_pixels;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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parents: 297
diff changeset
930 int srcskip = info->s_skip >> 1;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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parents: 297
diff changeset
931 Uint16 *dstp = (Uint16 *)info->d_pixels;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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parents: 297
diff changeset
932 int dstskip = info->d_skip >> 1;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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parents: 297
diff changeset
933 Uint32 s, d;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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parents: 297
diff changeset
934 Uint8 load[8];
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
935
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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parents: 297
diff changeset
936 alpha &= ~(1+2+4); /* cut alpha to get the exact same behaviour */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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parents: 297
diff changeset
937 *(Uint64 *)load = alpha;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
938 alpha >>= 3; /* downscale alpha to 5 bits */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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parents: 297
diff changeset
939
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parents: 297
diff changeset
940 movq_m2r(*load, mm0); /* alpha(0000000A) -> mm0 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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parents: 297
diff changeset
941 punpcklwd_r2r(mm0, mm0); /* 00000A0A -> mm0 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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parents: 297
diff changeset
942 punpcklwd_r2r(mm0, mm0); /* 0A0A0A0A -> mm0 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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parents: 297
diff changeset
943
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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parents: 297
diff changeset
944 /* 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
945 *(Uint64 *)load = 0x7C007C007C007C00ULL;
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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parents: 297
diff changeset
946 movq_m2r(*load, mm1); /* MASKRED -> mm1 */
720
f90d80d68071 N Sep 17 8791 Sam Lantinga Re: tks source released
Sam Lantinga <slouken@libsdl.org>
parents: 689
diff changeset
947 *(Uint64 *)load = 0x03E003E003E003E0ULL;
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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parents: 297
diff changeset
948 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
949 *(Uint64 *)load = 0x001F001F001F001FULL;
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
950 movq_m2r(*load, mm7); /* MASKBLUE -> mm7 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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parents: 297
diff changeset
951 while(height--) {
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
952 DUFFS_LOOP_QUATRO2(
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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parents: 297
diff changeset
953 {
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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parents: 297
diff changeset
954 s = *srcp++;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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parents: 297
diff changeset
955 d = *dstp;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
956 /*
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
957 * shift out the middle component (green) to
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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parents: 297
diff changeset
958 * the high 16 bits, and process all three RGB
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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parents: 297
diff changeset
959 * components at the same time.
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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parents: 297
diff changeset
960 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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parents: 297
diff changeset
961 s = (s | s << 16) & 0x03e07c1f;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff changeset
962 d = (d | d << 16) & 0x03e07c1f;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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parents: 297
diff changeset
963 d += (s - d) * alpha >> 5;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
964 d &= 0x03e07c1f;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
965 *dstp++ = d | d >> 16;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
966 },{
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
967 s = *srcp++;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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parents: 297
diff changeset
968 d = *dstp;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
969 /*
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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parents: 297
diff changeset
970 * shift out the middle component (green) to
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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parents: 297
diff changeset
971 * 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
972 * components at the same time.
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
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parents: 297
diff changeset
973 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
974 s = (s | s << 16) & 0x03e07c1f;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
975 d = (d | d << 16) & 0x03e07c1f;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
976 d += (s - d) * alpha >> 5;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
977 d &= 0x03e07c1f;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
978 *dstp++ = d | d >> 16;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
979 s = *srcp++;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
980 d = *dstp;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
981 /*
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
982 * 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
983 * 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
984 * components at the same time.
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
985 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
986 s = (s | s << 16) & 0x03e07c1f;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
987 d = (d | d << 16) & 0x03e07c1f;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
988 d += (s - d) * alpha >> 5;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
989 d &= 0x03e07c1f;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
990 *dstp++ = d | d >> 16;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
991 },{
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
992 movq_m2r((*dstp), mm3);/* 4 dst pixels -> mm3 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
993 movq_m2r((*srcp), mm2);/* 4 src pixels -> mm2 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
994
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
995 /* RED */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
996 movq_r2r(mm2, mm5); /* src -> mm5 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
997 pand_r2r(mm1 , mm5); /* src & MASKRED -> mm5 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
998 psrlq_i2r(10, mm5); /* mm5 >> 10 -> mm5 [000r 000r 000r 000r] */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
999
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1000 movq_r2r(mm3, mm6); /* dst -> mm6 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1001 pand_r2r(mm1 , mm6); /* dst & MASKRED -> mm6 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1002 psrlq_i2r(10, mm6); /* mm6 >> 10 -> mm6 [000r 000r 000r 000r] */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1003
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1004 /* blend */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1005 psubw_r2r(mm6, mm5);/* src - dst -> mm5 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1006 pmullw_r2r(mm0, mm5); /* mm5 * alpha -> mm5 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1007 psrlw_i2r(8, mm5); /* mm5 >> 8 -> mm5 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1008 paddw_r2r(mm5, mm6); /* mm5 + mm6(dst) -> mm6 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1009 psllq_i2r(10, mm6); /* mm6 << 10 -> mm6 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1010 pand_r2r(mm1, mm6); /* mm6 & MASKRED -> mm6 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1011
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1012 movq_r2r(mm4, mm5); /* MASKGREEN -> mm5 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1013 por_r2r(mm7, mm5); /* MASKBLUE | mm5 -> mm5 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1014 pand_r2r(mm5, mm3); /* mm3 & mm5(!MASKRED) -> mm3 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1015 por_r2r(mm6, mm3); /* save new reds in dsts */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1016
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1017 /* green */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1018 movq_r2r(mm2, mm5); /* src -> mm5 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1019 pand_r2r(mm4 , mm5); /* src & MASKGREEN -> mm5 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1020 psrlq_i2r(5, mm5); /* mm5 >> 5 -> mm5 [000g 000g 000g 000g] */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1021
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1022 movq_r2r(mm3, mm6); /* dst -> mm6 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1023 pand_r2r(mm4 , mm6); /* dst & MASKGREEN -> mm6 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1024 psrlq_i2r(5, mm6); /* mm6 >> 5 -> mm6 [000g 000g 000g 000g] */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1025
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1026 /* blend */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1027 psubw_r2r(mm6, mm5);/* src - dst -> mm5 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1028 pmullw_r2r(mm0, mm5); /* mm5 * alpha -> mm5 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1029 psrlw_i2r(8, mm5); /* mm5 >> 8 -> mm5 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1030 paddw_r2r(mm5, mm6); /* mm5 + mm6(dst) -> mm6 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1031 psllq_i2r(5, mm6); /* mm6 << 5 -> mm6 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1032 pand_r2r(mm4, mm6); /* mm6 & MASKGREEN -> mm6 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1033
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1034 movq_r2r(mm1, mm5); /* MASKRED -> mm5 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1035 por_r2r(mm7, mm5); /* MASKBLUE | mm5 -> mm5 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1036 pand_r2r(mm5, mm3); /* mm3 & mm5(!MASKGREEN) -> mm3 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1037 por_r2r(mm6, mm3); /* save new greens in dsts */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1038
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1039 /* blue */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1040 movq_r2r(mm2, mm5); /* src -> mm5 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1041 pand_r2r(mm7 , mm5); /* src & MASKRED -> mm5[000b 000b 000b 000b] */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1042
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1043 movq_r2r(mm3, mm6); /* dst -> mm6 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1044 pand_r2r(mm7 , mm6); /* dst & MASKBLUE -> mm6[000b 000b 000b 000b] */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1045
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1046 /* blend */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1047 psubw_r2r(mm6, mm5);/* src - dst -> mm5 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1048 pmullw_r2r(mm0, mm5); /* mm5 * alpha -> mm5 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1049 psrlw_i2r(8, mm5); /* mm5 >> 8 -> mm5 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1050 paddw_r2r(mm5, mm6); /* mm5 + mm6(dst) -> mm6 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1051 pand_r2r(mm7, mm6); /* mm6 & MASKBLUE -> mm6 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1052
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1053 movq_r2r(mm1, mm5); /* MASKRED -> mm5 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1054 por_r2r(mm4, mm5); /* MASKGREEN | mm5 -> mm5 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1055 pand_r2r(mm5, mm3); /* mm3 & mm5(!MASKBLUE) -> mm3 */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1056 por_r2r(mm6, mm3); /* save new blues in dsts */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1057
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1058 movq_r2m(mm3, *dstp);/* mm3 -> 4 dst pixels */
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1059
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1060 srcp += 4;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1061 dstp += 4;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1062 }, width);
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1063 srcp += srcskip;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1064 dstp += dstskip;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1065 }
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1066 emms();
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1067 }
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1068 }
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1069 #endif
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1070
1
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1071 /* fast RGB565->RGB565 blending with surface alpha */
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1072 static void Blit565to565SurfaceAlpha(SDL_BlitInfo *info)
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1073 {
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1074 unsigned alpha = info->src->alpha;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1075 if(alpha == 128) {
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1076 Blit16to16SurfaceAlpha128(info, 0xf7de);
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1077 } else {
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1078 int width = info->d_width;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1079 int height = info->d_height;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1080 Uint16 *srcp = (Uint16 *)info->s_pixels;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1081 int srcskip = info->s_skip >> 1;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1082 Uint16 *dstp = (Uint16 *)info->d_pixels;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1083 int dstskip = info->d_skip >> 1;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1084 alpha >>= 3; /* downscale alpha to 5 bits */
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1085
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1086 while(height--) {
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1087 DUFFS_LOOP4({
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1088 Uint32 s = *srcp++;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1089 Uint32 d = *dstp;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1090 /*
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1091 * shift out the middle component (green) to
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1092 * 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
1093 * components at the same time.
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1094 */
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1095 s = (s | s << 16) & 0x07e0f81f;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1096 d = (d | d << 16) & 0x07e0f81f;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1097 d += (s - d) * alpha >> 5;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1098 d &= 0x07e0f81f;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1099 *dstp++ = d | d >> 16;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1100 }, width);
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1101 srcp += srcskip;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1102 dstp += dstskip;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1103 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1104 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1105 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1106
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1107 /* fast RGB555->RGB555 blending with surface alpha */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1108 static void Blit555to555SurfaceAlpha(SDL_BlitInfo *info)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1109 {
1
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1110 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
1111 if(alpha == 128) {
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1112 Blit16to16SurfaceAlpha128(info, 0xfbde);
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1113 } else {
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1114 int width = info->d_width;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1115 int height = info->d_height;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1116 Uint16 *srcp = (Uint16 *)info->s_pixels;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1117 int srcskip = info->s_skip >> 1;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1118 Uint16 *dstp = (Uint16 *)info->d_pixels;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1119 int dstskip = info->d_skip >> 1;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1120 alpha >>= 3; /* downscale alpha to 5 bits */
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1121
1
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1122 while(height--) {
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1123 DUFFS_LOOP4({
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1124 Uint32 s = *srcp++;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1125 Uint32 d = *dstp;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1126 /*
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1127 * shift out the middle component (green) to
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1128 * 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
1129 * components at the same time.
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1130 */
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1131 s = (s | s << 16) & 0x03e07c1f;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1132 d = (d | d << 16) & 0x03e07c1f;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1133 d += (s - d) * alpha >> 5;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1134 d &= 0x03e07c1f;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1135 *dstp++ = d | d >> 16;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1136 }, width);
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1137 srcp += srcskip;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1138 dstp += dstskip;
cf2af46e9e2a Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
1139 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1140 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1141 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1142
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1143 /* fast ARGB8888->RGB565 blending with pixel alpha */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1144 static void BlitARGBto565PixelAlpha(SDL_BlitInfo *info)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1145 {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1146 int width = info->d_width;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1147 int height = info->d_height;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1148 Uint32 *srcp = (Uint32 *)info->s_pixels;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1149 int srcskip = info->s_skip >> 2;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1150 Uint16 *dstp = (Uint16 *)info->d_pixels;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1151 int dstskip = info->d_skip >> 1;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1152
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1153 while(height--) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1154 DUFFS_LOOP4({
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1155 Uint32 s = *srcp;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1156 unsigned alpha = s >> 27; /* downscale alpha to 5 bits */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1157 /* FIXME: Here we special-case opaque alpha since the
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1158 compositioning used (>>8 instead of /255) doesn't handle
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1159 it correctly. Also special-case alpha=0 for speed?
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1160 Benchmark this! */
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1161 if(alpha) {
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1162 if(alpha == (SDL_ALPHA_OPAQUE >> 3)) {
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1163 *dstp = (s >> 8 & 0xf800) + (s >> 5 & 0x7e0)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1164 + (s >> 3 & 0x1f);
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1165 } else {
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1166 Uint32 d = *dstp;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1167 /*
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1168 * convert source and destination to G0RAB65565
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1169 * and blend all components at the same time
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1170 */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1171 s = ((s & 0xfc00) << 11) + (s >> 8 & 0xf800)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1172 + (s >> 3 & 0x1f);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1173 d = (d | d << 16) & 0x07e0f81f;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1174 d += (s - d) * alpha >> 5;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1175 d &= 0x07e0f81f;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1176 *dstp = d | d >> 16;
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1177 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1178 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1179 srcp++;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1180 dstp++;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1181 }, width);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1182 srcp += srcskip;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1183 dstp += dstskip;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1184 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1185 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1186
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1187 /* fast ARGB8888->RGB555 blending with pixel alpha */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1188 static void BlitARGBto555PixelAlpha(SDL_BlitInfo *info)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1189 {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1190 int width = info->d_width;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1191 int height = info->d_height;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1192 Uint32 *srcp = (Uint32 *)info->s_pixels;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1193 int srcskip = info->s_skip >> 2;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1194 Uint16 *dstp = (Uint16 *)info->d_pixels;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1195 int dstskip = info->d_skip >> 1;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1196
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1197 while(height--) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1198 DUFFS_LOOP4({
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1199 unsigned alpha;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1200 Uint32 s = *srcp;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1201 alpha = s >> 27; /* downscale alpha to 5 bits */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1202 /* FIXME: Here we special-case opaque alpha since the
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1203 compositioning used (>>8 instead of /255) doesn't handle
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1204 it correctly. Also special-case alpha=0 for speed?
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1205 Benchmark this! */
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1206 if(alpha) {
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1207 if(alpha == (SDL_ALPHA_OPAQUE >> 3)) {
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1208 *dstp = (s >> 9 & 0x7c00) + (s >> 6 & 0x3e0)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1209 + (s >> 3 & 0x1f);
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1210 } else {
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1211 Uint32 d = *dstp;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1212 /*
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1213 * convert source and destination to G0RAB65565
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1214 * and blend all components at the same time
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1215 */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1216 s = ((s & 0xf800) << 10) + (s >> 9 & 0x7c00)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1217 + (s >> 3 & 0x1f);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1218 d = (d | d << 16) & 0x03e07c1f;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1219 d += (s - d) * alpha >> 5;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1220 d &= 0x03e07c1f;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1221 *dstp = d | d >> 16;
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1222 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1223 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1224 srcp++;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1225 dstp++;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1226 }, width);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1227 srcp += srcskip;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1228 dstp += dstskip;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1229 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1230 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1231
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1232 /* General (slow) N->N blending with per-surface alpha */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1233 static void BlitNtoNSurfaceAlpha(SDL_BlitInfo *info)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1234 {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1235 int width = info->d_width;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1236 int height = info->d_height;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1237 Uint8 *src = info->s_pixels;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1238 int srcskip = info->s_skip;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1239 Uint8 *dst = info->d_pixels;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1240 int dstskip = info->d_skip;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1241 SDL_PixelFormat *srcfmt = info->src;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1242 SDL_PixelFormat *dstfmt = info->dst;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1243 int srcbpp = srcfmt->BytesPerPixel;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1244 int dstbpp = dstfmt->BytesPerPixel;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1245 unsigned sA = srcfmt->alpha;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1246 unsigned dA = dstfmt->Amask ? SDL_ALPHA_OPAQUE : 0;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1247
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1248 if(sA) {
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1249 while ( height-- ) {
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1250 DUFFS_LOOP4(
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1251 {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1252 Uint32 pixel;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1253 unsigned sR;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1254 unsigned sG;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1255 unsigned sB;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1256 unsigned dR;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1257 unsigned dG;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1258 unsigned dB;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1259 DISEMBLE_RGB(src, srcbpp, srcfmt, pixel, sR, sG, sB);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1260 DISEMBLE_RGB(dst, dstbpp, dstfmt, pixel, dR, dG, dB);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1261 ALPHA_BLEND(sR, sG, sB, sA, dR, dG, dB);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1262 ASSEMBLE_RGBA(dst, dstbpp, dstfmt, dR, dG, dB, dA);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1263 src += srcbpp;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1264 dst += dstbpp;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1265 },
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1266 width);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1267 src += srcskip;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1268 dst += dstskip;
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1269 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1270 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1271 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1272
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1273 /* General (slow) colorkeyed N->N blending with per-surface alpha */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1274 static void BlitNtoNSurfaceAlphaKey(SDL_BlitInfo *info)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1275 {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1276 int width = info->d_width;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1277 int height = info->d_height;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1278 Uint8 *src = info->s_pixels;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1279 int srcskip = info->s_skip;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1280 Uint8 *dst = info->d_pixels;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1281 int dstskip = info->d_skip;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1282 SDL_PixelFormat *srcfmt = info->src;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1283 SDL_PixelFormat *dstfmt = info->dst;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1284 Uint32 ckey = srcfmt->colorkey;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1285 int srcbpp = srcfmt->BytesPerPixel;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1286 int dstbpp = dstfmt->BytesPerPixel;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1287 unsigned sA = srcfmt->alpha;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1288 unsigned dA = dstfmt->Amask ? SDL_ALPHA_OPAQUE : 0;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1289
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1290 while ( height-- ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1291 DUFFS_LOOP4(
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1292 {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1293 Uint32 pixel;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1294 unsigned sR;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1295 unsigned sG;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1296 unsigned sB;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1297 unsigned dR;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1298 unsigned dG;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1299 unsigned dB;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1300 RETRIEVE_RGB_PIXEL(src, srcbpp, pixel);
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1301 if(sA && pixel != ckey) {
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1302 RGB_FROM_PIXEL(pixel, srcfmt, sR, sG, sB);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1303 DISEMBLE_RGB(dst, dstbpp, dstfmt, pixel, dR, dG, dB);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1304 ALPHA_BLEND(sR, sG, sB, sA, dR, dG, dB);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1305 ASSEMBLE_RGBA(dst, dstbpp, dstfmt, dR, dG, dB, dA);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1306 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1307 src += srcbpp;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1308 dst += dstbpp;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1309 },
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1310 width);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1311 src += srcskip;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1312 dst += dstskip;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1313 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1314 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1315
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1316 /* General (slow) N->N blending with pixel alpha */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1317 static void BlitNtoNPixelAlpha(SDL_BlitInfo *info)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1318 {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1319 int width = info->d_width;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1320 int height = info->d_height;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1321 Uint8 *src = info->s_pixels;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1322 int srcskip = info->s_skip;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1323 Uint8 *dst = info->d_pixels;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1324 int dstskip = info->d_skip;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1325 SDL_PixelFormat *srcfmt = info->src;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1326 SDL_PixelFormat *dstfmt = info->dst;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1327
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1328 int srcbpp;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1329 int dstbpp;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1330
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1331 /* Set up some basic variables */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1332 srcbpp = srcfmt->BytesPerPixel;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1333 dstbpp = dstfmt->BytesPerPixel;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1334
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1335 /* FIXME: for 8bpp source alpha, this doesn't get opaque values
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1336 quite right. for <8bpp source alpha, it gets them very wrong
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1337 (check all macros!)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1338 It is unclear whether there is a good general solution that doesn't
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1339 need a branch (or a divide). */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1340 while ( height-- ) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1341 DUFFS_LOOP4(
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1342 {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1343 Uint32 pixel;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1344 unsigned sR;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1345 unsigned sG;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1346 unsigned sB;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1347 unsigned dR;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1348 unsigned dG;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1349 unsigned dB;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1350 unsigned sA;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1351 unsigned dA;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1352 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
1353 if(sA) {
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1354 DISEMBLE_RGBA(dst, dstbpp, dstfmt, pixel, dR, dG, dB, dA);
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1355 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
1356 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
1357 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1358 src += srcbpp;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1359 dst += dstbpp;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1360 },
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1361 width);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1362 src += srcskip;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1363 dst += dstskip;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1364 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1365 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1366
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1367
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1368 SDL_loblit SDL_CalculateAlphaBlit(SDL_Surface *surface, int blit_index)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1369 {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1370 SDL_PixelFormat *sf = surface->format;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1371 SDL_PixelFormat *df = surface->map->dst->format;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1372
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1373 if(sf->Amask == 0) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1374 if((surface->flags & SDL_SRCCOLORKEY) == SDL_SRCCOLORKEY) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1375 if(df->BytesPerPixel == 1)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1376 return BlitNto1SurfaceAlphaKey;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1377 else
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1378 return BlitNtoNSurfaceAlphaKey;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1379 } else {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1380 /* Per-surface alpha blits */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1381 switch(df->BytesPerPixel) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1382 case 1:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1383 return BlitNto1SurfaceAlpha;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1384
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1385 case 2:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1386 if(surface->map->identity) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1387 if(df->Gmask == 0x7e0)
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1388 {
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1389 #if defined(i386) && defined(__GNUC__) && defined(USE_ASMBLIT)
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1390 if((CPU_Flags()&MMX_CPU)!=0)
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1391 return Blit565to565SurfaceAlphaMMX;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1392 else
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1393 #endif
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1394 return Blit565to565SurfaceAlpha;
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1395 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1396 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
1397 {
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1398 #if defined(i386) && defined(__GNUC__) && defined(USE_ASMBLIT)
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1399 if((CPU_Flags()&MMX_CPU)!=0)
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1400 return Blit555to555SurfaceAlphaMMX;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1401 else
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1402 #endif
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1403 return Blit555to555SurfaceAlpha;
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1404 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1405 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1406 return BlitNtoNSurfaceAlpha;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1407
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1408 case 4:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1409 if(sf->Rmask == df->Rmask
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1410 && sf->Gmask == df->Gmask
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1411 && sf->Bmask == df->Bmask
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1412 && (sf->Rmask | sf->Gmask | sf->Bmask) == 0xffffff
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1413 && sf->BytesPerPixel == 4)
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1414 {
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1415 #if defined(i386) && defined(__GNUC__) && defined(USE_ASMBLIT)
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1416 if((CPU_Flags()&MMX_CPU)!=0)
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1417 return BlitRGBtoRGBSurfaceAlphaMMX;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1418 else
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1419 #endif
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1420 return BlitRGBtoRGBSurfaceAlpha;
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1421 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1422 else
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1423 return BlitNtoNSurfaceAlpha;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1424
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1425 case 3:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1426 default:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1427 return BlitNtoNSurfaceAlpha;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1428 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1429 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1430 } else {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1431 /* Per-pixel alpha blits */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1432 switch(df->BytesPerPixel) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1433 case 1:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1434 return BlitNto1PixelAlpha;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1435
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1436 case 2:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1437 if(sf->BytesPerPixel == 4 && sf->Amask == 0xff000000
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1438 && sf->Gmask == 0xff00
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1439 && ((sf->Rmask == 0xff && df->Rmask == 0x1f)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1440 || (sf->Bmask == 0xff && df->Bmask == 0x1f))) {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1441 if(df->Gmask == 0x7e0)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1442 return BlitARGBto565PixelAlpha;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1443 else if(df->Gmask == 0x3e0)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1444 return BlitARGBto555PixelAlpha;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1445 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1446 return BlitNtoNPixelAlpha;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1447
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1448 case 4:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1449 if(sf->Amask == 0xff000000
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1450 && sf->Rmask == df->Rmask
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1451 && sf->Gmask == df->Gmask
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1452 && sf->Bmask == df->Bmask
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1453 && sf->BytesPerPixel == 4)
689
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1454 {
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1455 #if defined(i386) && defined(__GNUC__) && defined(USE_ASMBLIT)
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1456 Uint32 f;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1457 f=CPU_Flags();
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1458 if((f&(TDNOW_CPU|MMX_CPU))==(TDNOW_CPU|MMX_CPU))
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1459 return BlitRGBtoRGBPixelAlphaMMX3DNOW;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1460 else
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1461 if((f&MMX_CPU)!=0)
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1462 return BlitRGBtoRGBPixelAlphaMMX;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1463 else
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1464 #endif
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1465 return BlitRGBtoRGBPixelAlpha;
5bb080d35049 Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
1466 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1467 return BlitNtoNPixelAlpha;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1468
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1469 case 3:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1470 default:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1471 return BlitNtoNPixelAlpha;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1472 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1473 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1474 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
1475