Mercurial > sdl-ios-xcode
annotate src/video/cybergfx/SDL_cgxaccel.c @ 1483:52a61c7b323b
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| author | Sam Lantinga <slouken@libsdl.org> |
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| date | Wed, 08 Mar 2006 06:21:04 +0000 |
| parents | d910939febfa |
| children | 782fd950bd46 c121d94672cb |
| rev | line source |
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1 /* |
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2 SDL - Simple DirectMedia Layer |
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3 Copyright (C) 1997-2006 Sam Lantinga |
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4 |
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5 This library is free software; you can redistribute it and/or |
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6 modify it under the terms of the GNU Lesser General Public |
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7 License as published by the Free Software Foundation; either |
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8 version 2.1 of the License, or (at your option) any later version. |
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9 |
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10 This library is distributed in the hope that it will be useful, |
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of |
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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13 Lesser General Public License for more details. |
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14 |
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15 You should have received a copy of the GNU Lesser General Public |
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16 License along with this library; if not, write to the Free Software |
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
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18 |
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19 Sam Lantinga |
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20 slouken@libsdl.org |
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21 */ |
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22 #include "SDL_config.h" |
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23 |
| 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 | |
| 30 static int CGX_HWAccelBlit(SDL_Surface *src, SDL_Rect *srcrect, | |
| 31 SDL_Surface *dst, SDL_Rect *dstrect); | |
| 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 | |
| 40 void BMKBRP(struct BitMap *a,WORD b, WORD c,struct RastPort *d,WORD e,WORD f,WORD g,WORD h,UBYTE i,APTR j) | |
| 41 {BltMaskBitMapRastPort(a,b,c,d,e,f,g,h,i,j);} | |
| 42 | |
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43 void BBRP(struct BitMap *a,WORD b, WORD c,struct RastPort *d,WORD e,WORD f,WORD g,WORD h,UBYTE i) |
| 0 | 44 {BltBitMapRastPort(a,b,c,d,e,f,g,h,i);} |
| 45 | |
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46 void BBB(struct BitMap *a,WORD b, WORD c,struct BitMap *d,WORD e,WORD f,WORD g,WORD h,UBYTE i,UBYTE j,UWORD *k) |
| 0 | 47 {BltBitMap(a,b,c,d,e,f,g,h,i,j,k);} |
| 48 #endif | |
| 49 | |
| 50 int CGX_SetHWColorKey(_THIS,SDL_Surface *surface, Uint32 key) | |
| 51 { | |
| 52 if(surface->hwdata) | |
| 53 { | |
| 54 if(surface->hwdata->mask) | |
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55 SDL_free(surface->hwdata->mask); |
| 0 | 56 |
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57 if(surface->hwdata->mask=SDL_malloc(RASSIZE(surface->w,surface->h))) |
| 0 | 58 { |
| 59 Uint32 pitch,ok=0; | |
| 60 APTR lock; | |
| 61 | |
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62 SDL_memset(surface->hwdata->mask,255,RASSIZE(surface->w,surface->h)); |
| 0 | 63 |
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64 D(bug("Building colorkey mask: color: %ld, size: %ld x %ld, %ld bytes...Bpp:%ld\n",key,surface->w,surface->h,RASSIZE(surface->w,surface->h),surface->format->BytesPerPixel)); |
| 0 | 65 |
| 66 if(lock=LockBitMapTags(surface->hwdata->bmap,LBMI_BASEADDRESS,(ULONG)&surface->pixels, | |
| 67 LBMI_BYTESPERROW,(ULONG)&pitch,TAG_DONE)) | |
| 68 { | |
| 69 switch(surface->format->BytesPerPixel) | |
| 70 { | |
| 71 case 1: | |
| 72 { | |
| 73 unsigned char k=key; | |
| 74 register int i,j,t; | |
| 75 register unsigned char *dest=surface->hwdata->mask,*map=surface->pixels; | |
| 76 | |
| 77 pitch-=surface->w; | |
| 78 | |
| 79 for(i=0;i<surface->h;i++) | |
| 80 { | |
| 81 for(t=128,j=0;j<surface->w;j++) | |
| 82 { | |
| 83 if(*map==k) | |
| 84 *dest&=~t; | |
| 85 | |
| 86 t>>=1; | |
| 87 | |
| 88 if(t==0) | |
| 89 { | |
| 90 dest++; | |
| 91 t=128; | |
| 92 } | |
| 93 map++; | |
| 94 } | |
| 95 map+=pitch; | |
| 96 } | |
| 97 } | |
| 98 break; | |
| 99 case 2: | |
| 100 { | |
| 101 Uint16 k=key,*mapw; | |
| 102 register int i,j,t; | |
| 103 register unsigned char *dest=surface->hwdata->mask,*map=surface->pixels; | |
| 104 | |
| 105 for(i=surface->h;i;--i) | |
| 106 { | |
| 107 mapw=(Uint16 *)map; | |
| 108 | |
| 109 for(t=128,j=surface->w;j;--j) | |
| 110 { | |
| 111 if(*mapw==k) | |
| 112 *dest&=~t; | |
| 113 | |
| 114 t>>=1; | |
| 115 | |
| 116 if(t==0) | |
| 117 { | |
| 118 dest++; | |
| 119 t=128; | |
| 120 } | |
| 121 mapw++; | |
| 122 } | |
| 123 map+=pitch; | |
| 124 } | |
| 125 } | |
| 126 break; | |
| 127 case 4: | |
| 128 { | |
| 129 Uint32 *mapl; | |
| 130 register int i,j,t; | |
| 131 register unsigned char *dest=surface->hwdata->mask,*map=surface->pixels; | |
| 132 | |
| 133 for(i=surface->h;i;--i) | |
| 134 { | |
| 135 mapl=(Uint32 *)map; | |
| 136 | |
| 137 for(t=128,j=surface->w;j;--j) | |
| 138 { | |
| 139 if(*mapl==key) | |
| 140 *dest&=~t; | |
| 141 | |
| 142 t>>=1; | |
| 143 | |
| 144 if(t==0) | |
| 145 { | |
| 146 dest++; | |
| 147 t=128; | |
| 148 } | |
| 149 mapl++; | |
| 150 } | |
| 151 map+=pitch; | |
| 152 } | |
| 153 | |
| 154 } | |
| 155 break; | |
| 156 default: | |
| 157 D(bug("Pixel mode non supported for color key...")); | |
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158 SDL_free(surface->hwdata->mask); |
| 0 | 159 surface->hwdata->mask=NULL; |
| 160 ok=-1; | |
| 161 } | |
| 162 UnLockBitMap(lock); | |
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163 D(bug("...Colorkey built!\n")); |
| 0 | 164 return ok; |
| 165 } | |
| 166 } | |
| 167 } | |
| 168 D(bug("HW colorkey not supported for this depth\n")); | |
| 169 | |
| 170 return -1; | |
| 171 } | |
| 172 | |
| 173 int CGX_CheckHWBlit(_THIS,SDL_Surface *src,SDL_Surface *dst) | |
| 174 { | |
| 175 // Doesn't support yet alpha blitting | |
| 176 | |
| 177 if(src->hwdata&& !(src->flags & (SDL_SRCALPHA))) | |
| 178 { | |
| 179 D(bug("CheckHW blit... OK!\n")); | |
| 180 | |
| 181 if ( (src->flags & SDL_SRCCOLORKEY) == SDL_SRCCOLORKEY ) { | |
| 182 if ( CGX_SetHWColorKey(this, src, src->format->colorkey) < 0 ) { | |
| 183 src->flags &= ~SDL_HWACCEL; | |
| 184 return -1; | |
| 185 } | |
| 186 } | |
| 187 | |
| 188 src->flags|=SDL_HWACCEL; | |
| 189 src->map->hw_blit = CGX_HWAccelBlit; | |
| 190 return 1; | |
| 191 } | |
| 192 else | |
| 193 src->flags &= ~SDL_HWACCEL; | |
| 194 | |
| 195 D(bug("CheckHW blit... NO!\n")); | |
| 196 | |
| 197 return 0; | |
| 198 } | |
| 199 | |
| 200 static int temprp_init=0; | |
| 201 static struct RastPort temprp; | |
| 202 | |
| 203 static int CGX_HWAccelBlit(SDL_Surface *src, SDL_Rect *srcrect, | |
| 204 SDL_Surface *dst, SDL_Rect *dstrect) | |
| 205 { | |
| 206 struct SDL_VideoDevice *this=src->hwdata->videodata; | |
| 207 | |
| 208 // D(bug("Accel blit!\n")); | |
| 209 | |
| 210 if(src->flags&SDL_SRCCOLORKEY && src->hwdata->mask) | |
| 211 { | |
| 212 if(dst==SDL_VideoSurface) | |
| 213 { | |
| 214 BMKBRP(src->hwdata->bmap,srcrect->x,srcrect->y, | |
| 215 SDL_RastPort,dstrect->x+SDL_Window->BorderLeft,dstrect->y+SDL_Window->BorderTop, | |
| 216 srcrect->w,srcrect->h,0xc0,src->hwdata->mask); | |
| 217 } | |
| 218 else if(dst->hwdata) | |
| 219 { | |
| 220 if(!temprp_init) | |
| 221 { | |
| 222 InitRastPort(&temprp); | |
| 223 temprp_init=1; | |
| 224 } | |
| 225 temprp.BitMap=(struct BitMap *)dst->hwdata->bmap; | |
| 226 | |
| 227 BMKBRP(src->hwdata->bmap,srcrect->x,srcrect->y, | |
| 228 &temprp,dstrect->x,dstrect->y, | |
| 229 srcrect->w,srcrect->h,0xc0,src->hwdata->mask); | |
| 230 | |
| 231 } | |
| 232 } | |
| 233 else if(dst==SDL_VideoSurface) | |
| 234 { | |
| 235 BBRP(src->hwdata->bmap,srcrect->x,srcrect->y,SDL_RastPort,dstrect->x+SDL_Window->BorderLeft,dstrect->y+SDL_Window->BorderTop,srcrect->w,srcrect->h,0xc0); | |
| 236 } | |
| 237 else if(dst->hwdata) | |
| 238 BBB(src->hwdata->bmap,srcrect->x,srcrect->y,dst->hwdata->bmap,dstrect->x,dstrect->y,srcrect->w,srcrect->h,0xc0,0xff,NULL); | |
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239 |
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240 return 0; |
| 0 | 241 } |
| 242 | |
| 243 int CGX_FillHWRect(_THIS,SDL_Surface *dst,SDL_Rect *dstrect,Uint32 color) | |
| 244 { | |
| 245 if(dst==SDL_VideoSurface) | |
| 246 { | |
| 247 FillPixelArray(SDL_RastPort,dstrect->x+SDL_Window->BorderLeft,dstrect->y+SDL_Window->BorderTop,dstrect->w,dstrect->h,color); | |
| 248 } | |
| 249 else if(dst->hwdata) | |
| 250 { | |
| 251 if(!temprp_init) | |
| 252 { | |
| 253 InitRastPort(&temprp); | |
| 254 temprp_init=1; | |
| 255 } | |
| 256 | |
| 257 temprp.BitMap=(struct BitMap *)dst->hwdata->bmap; | |
| 258 | |
| 259 FillPixelArray(&temprp,dstrect->x,dstrect->y,dstrect->w,dstrect->h,color); | |
| 260 } | |
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261 return 0; |
| 0 | 262 } |