Mercurial > sdl-ios-xcode
annotate src/video/cybergfx/SDL_cgxaccel.c @ 1662:782fd950bd46 SDL-1.3
Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
WARNING: None of the video drivers have been updated for the new API yet! The API is still under design and very fluid.
The code is now run through a consistent indent format:
indent -i4 -nut -nsc -br -ce
The headers are being converted to automatically generate doxygen documentation.
author | Sam Lantinga <slouken@libsdl.org> |
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date | Sun, 28 May 2006 13:04:16 +0000 |
parents | d910939febfa |
children | 4da1ee79c9af |
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1 /* |
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2 SDL - Simple DirectMedia Layer |
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3 Copyright (C) 1997-2006 Sam Lantinga |
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4 |
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5 This library is free software; you can redistribute it and/or |
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6 modify it under the terms of the GNU Lesser General Public |
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7 License as published by the Free Software Foundation; either |
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8 version 2.1 of the License, or (at your option) any later version. |
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9 |
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10 This library is distributed in the hope that it will be useful, |
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of |
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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13 Lesser General Public License for more details. |
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14 |
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15 You should have received a copy of the GNU Lesser General Public |
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16 License along with this library; if not, write to the Free Software |
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
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18 |
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19 Sam Lantinga |
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20 slouken@libsdl.org |
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21 */ |
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22 #include "SDL_config.h" |
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23 |
0 | 24 #include "SDL_endian.h" |
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25 #include "SDL_video.h" |
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26 #include "../SDL_sysvideo.h" |
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27 #include "../SDL_blit.h" |
0 | 28 #include "SDL_cgxvideo.h" |
29 | |
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30 static int CGX_HWAccelBlit (SDL_Surface * src, SDL_Rect * srcrect, |
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31 SDL_Surface * dst, SDL_Rect * dstrect); |
0 | 32 |
33 // These are needed to avoid register troubles with gcc -O2! | |
34 | |
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35 #if defined(__SASC) || defined(__PPC__) || defined(MORPHOS) |
0 | 36 #define BMKBRP(a,b,c,d,e,f,g,h,i,j) BltMaskBitMapRastPort(a,b,c,d,e,f,g,h,i,j) |
37 #define BBRP(a,b,c,d,e,f,g,h,i) BltBitMapRastPort(a,b,c,d,e,f,g,h,i) | |
38 #define BBB(a,b,c,d,e,f,g,h,i,j,k) BltBitMap(a,b,c,d,e,f,g,h,i,j,k) | |
39 #else | |
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40 void |
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41 BMKBRP (struct BitMap *a, WORD b, WORD c, struct RastPort *d, WORD e, WORD f, |
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42 WORD g, WORD h, UBYTE i, APTR j) |
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43 { |
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44 BltMaskBitMapRastPort (a, b, c, d, e, f, g, h, i, j); |
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45 } |
0 | 46 |
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47 void |
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48 BBRP (struct BitMap *a, WORD b, WORD c, struct RastPort *d, WORD e, WORD f, |
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49 WORD g, WORD h, UBYTE i) |
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50 { |
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51 BltBitMapRastPort (a, b, c, d, e, f, g, h, i); |
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52 } |
0 | 53 |
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54 void |
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55 BBB (struct BitMap *a, WORD b, WORD c, struct BitMap *d, WORD e, WORD f, |
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56 WORD g, WORD h, UBYTE i, UBYTE j, UWORD * k) |
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57 { |
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58 BltBitMap (a, b, c, d, e, f, g, h, i, j, k); |
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59 } |
0 | 60 #endif |
61 | |
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62 int |
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63 CGX_SetHWColorKey (_THIS, SDL_Surface * surface, Uint32 key) |
0 | 64 { |
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65 if (surface->hwdata) { |
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66 if (surface->hwdata->mask) |
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67 SDL_free (surface->hwdata->mask); |
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69 if (surface->hwdata->mask = |
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70 SDL_malloc (RASSIZE (surface->w, surface->h))) { |
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71 Uint32 pitch, ok = 0; |
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72 APTR lock; |
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74 SDL_memset (surface->hwdata->mask, 255, |
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75 RASSIZE (surface->w, surface->h)); |
0 | 76 |
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77 D (bug |
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78 ("Building colorkey mask: color: %ld, size: %ld x %ld, %ld bytes...Bpp:%ld\n", |
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79 key, surface->w, surface->h, RASSIZE (surface->w, |
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80 surface->h), |
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81 surface->format->BytesPerPixel)); |
0 | 82 |
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83 if (lock = |
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84 LockBitMapTags (surface->hwdata->bmap, LBMI_BASEADDRESS, |
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85 (ULONG) & surface->pixels, |
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86 LBMI_BYTESPERROW, (ULONG) & pitch, |
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87 TAG_DONE)) { |
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88 switch (surface->format->BytesPerPixel) { |
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89 case 1: |
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90 { |
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91 unsigned char k = key; |
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92 register int i, j, t; |
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93 register unsigned char *dest = |
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94 surface->hwdata->mask, *map = surface->pixels; |
0 | 95 |
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96 pitch -= surface->w; |
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98 for (i = 0; i < surface->h; i++) { |
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99 for (t = 128, j = 0; j < surface->w; j++) { |
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100 if (*map == k) |
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101 *dest &= ~t; |
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102 |
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103 t >>= 1; |
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105 if (t == 0) { |
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106 dest++; |
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107 t = 128; |
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108 } |
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109 map++; |
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110 } |
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111 map += pitch; |
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112 } |
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113 } |
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114 break; |
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115 case 2: |
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116 { |
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117 Uint16 k = key, *mapw; |
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118 register int i, j, t; |
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119 register unsigned char *dest = |
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120 surface->hwdata->mask, *map = surface->pixels; |
0 | 121 |
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122 for (i = surface->h; i; --i) { |
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123 mapw = (Uint16 *) map; |
0 | 124 |
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125 for (t = 128, j = surface->w; j; --j) { |
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126 if (*mapw == k) |
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127 *dest &= ~t; |
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128 |
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129 t >>= 1; |
0 | 130 |
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131 if (t == 0) { |
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132 dest++; |
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133 t = 128; |
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134 } |
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135 mapw++; |
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136 } |
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137 map += pitch; |
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138 } |
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139 } |
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140 break; |
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141 case 4: |
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142 { |
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143 Uint32 *mapl; |
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144 register int i, j, t; |
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145 register unsigned char *dest = |
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146 surface->hwdata->mask, *map = surface->pixels; |
0 | 147 |
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148 for (i = surface->h; i; --i) { |
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149 mapl = (Uint32 *) map; |
0 | 150 |
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151 for (t = 128, j = surface->w; j; --j) { |
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152 if (*mapl == key) |
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153 *dest &= ~t; |
0 | 154 |
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155 t >>= 1; |
0 | 156 |
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157 if (t == 0) { |
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158 dest++; |
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159 t = 128; |
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160 } |
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161 mapl++; |
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162 } |
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163 map += pitch; |
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164 } |
0 | 165 |
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166 } |
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167 break; |
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168 default: |
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169 D (bug ("Pixel mode non supported for color key...")); |
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170 SDL_free (surface->hwdata->mask); |
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171 surface->hwdata->mask = NULL; |
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172 ok = -1; |
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173 } |
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174 UnLockBitMap (lock); |
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175 D (bug ("...Colorkey built!\n")); |
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176 return ok; |
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177 } |
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178 } |
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179 } |
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180 D (bug ("HW colorkey not supported for this depth\n")); |
0 | 181 |
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182 return -1; |
0 | 183 } |
184 | |
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185 int |
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186 CGX_CheckHWBlit (_THIS, SDL_Surface * src, SDL_Surface * dst) |
0 | 187 { |
188 // Doesn't support yet alpha blitting | |
189 | |
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190 if (src->hwdata && !(src->flags & (SDL_SRCALPHA))) { |
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191 D (bug ("CheckHW blit... OK!\n")); |
0 | 192 |
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193 if ((src->flags & SDL_SRCCOLORKEY) == SDL_SRCCOLORKEY) { |
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194 if (CGX_SetHWColorKey (this, src, src->format->colorkey) < 0) { |
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195 src->flags &= ~SDL_HWACCEL; |
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196 return -1; |
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197 } |
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198 } |
0 | 199 |
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200 src->flags |= SDL_HWACCEL; |
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201 src->map->hw_blit = CGX_HWAccelBlit; |
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202 return 1; |
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203 } else |
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204 src->flags &= ~SDL_HWACCEL; |
0 | 205 |
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206 D (bug ("CheckHW blit... NO!\n")); |
0 | 207 |
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208 return 0; |
0 | 209 } |
210 | |
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211 static int temprp_init = 0; |
0 | 212 static struct RastPort temprp; |
213 | |
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214 static int |
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215 CGX_HWAccelBlit (SDL_Surface * src, SDL_Rect * srcrect, |
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216 SDL_Surface * dst, SDL_Rect * dstrect) |
0 | 217 { |
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218 struct SDL_VideoDevice *this = src->hwdata->videodata; |
0 | 219 |
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220 // D(bug("Accel blit!\n")); |
0 | 221 |
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222 if (src->flags & SDL_SRCCOLORKEY && src->hwdata->mask) { |
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223 if (dst == SDL_VideoSurface) { |
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224 BMKBRP (src->hwdata->bmap, srcrect->x, srcrect->y, |
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225 SDL_RastPort, dstrect->x + SDL_Window->BorderLeft, |
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226 dstrect->y + SDL_Window->BorderTop, srcrect->w, |
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227 srcrect->h, 0xc0, src->hwdata->mask); |
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228 } else if (dst->hwdata) { |
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229 if (!temprp_init) { |
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230 InitRastPort (&temprp); |
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231 temprp_init = 1; |
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232 } |
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233 temprp.BitMap = (struct BitMap *) dst->hwdata->bmap; |
0 | 234 |
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235 BMKBRP (src->hwdata->bmap, srcrect->x, srcrect->y, |
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236 &temprp, dstrect->x, dstrect->y, |
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237 srcrect->w, srcrect->h, 0xc0, src->hwdata->mask); |
21
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238 |
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239 } |
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240 } else if (dst == SDL_VideoSurface) { |
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241 BBRP (src->hwdata->bmap, srcrect->x, srcrect->y, SDL_RastPort, |
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242 dstrect->x + SDL_Window->BorderLeft, |
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243 dstrect->y + SDL_Window->BorderTop, srcrect->w, srcrect->h, |
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244 0xc0); |
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245 } else if (dst->hwdata) |
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246 BBB (src->hwdata->bmap, srcrect->x, srcrect->y, dst->hwdata->bmap, |
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247 dstrect->x, dstrect->y, srcrect->w, srcrect->h, 0xc0, 0xff, |
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248 NULL); |
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249 |
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250 return 0; |
0 | 251 } |
252 | |
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253 int |
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254 CGX_FillHWRect (_THIS, SDL_Surface * dst, SDL_Rect * dstrect, Uint32 color) |
0 | 255 { |
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256 if (dst == SDL_VideoSurface) { |
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257 FillPixelArray (SDL_RastPort, dstrect->x + SDL_Window->BorderLeft, |
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258 dstrect->y + SDL_Window->BorderTop, dstrect->w, |
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259 dstrect->h, color); |
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260 } else if (dst->hwdata) { |
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261 if (!temprp_init) { |
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262 InitRastPort (&temprp); |
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263 temprp_init = 1; |
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264 } |
0 | 265 |
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266 temprp.BitMap = (struct BitMap *) dst->hwdata->bmap; |
0 | 267 |
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268 FillPixelArray (&temprp, dstrect->x, dstrect->y, dstrect->w, |
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269 dstrect->h, color); |
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270 } |
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271 return 0; |
0 | 272 } |
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273 |
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274 /* vi: set ts=4 sw=4 expandtab: */ |