Mercurial > sdl-ios-xcode
annotate src/video/cybergfx/SDL_cgxaccel.c @ 1371:e2641c13bf33
Added a reminder on where to put libSDL.so
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Sat, 18 Feb 2006 07:21:42 +0000 |
| parents | 19418e4422cb |
| children | d910939febfa |
| 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 |
| 0 | 23 #include "SDL_endian.h" |
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24 #include "SDL_video.h" |
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25 #include "../SDL_sysvideo.h" |
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26 #include "../SDL_blit.h" |
| 0 | 27 #include "SDL_cgxvideo.h" |
| 28 | |
| 29 static int CGX_HWAccelBlit(SDL_Surface *src, SDL_Rect *srcrect, | |
| 30 SDL_Surface *dst, SDL_Rect *dstrect); | |
| 31 | |
| 32 // These are needed to avoid register troubles with gcc -O2! | |
| 33 | |
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34 #if defined(__SASC) || defined(__PPC__) || defined(MORPHOS) |
| 0 | 35 #define BMKBRP(a,b,c,d,e,f,g,h,i,j) BltMaskBitMapRastPort(a,b,c,d,e,f,g,h,i,j) |
| 36 #define BBRP(a,b,c,d,e,f,g,h,i) BltBitMapRastPort(a,b,c,d,e,f,g,h,i) | |
| 37 #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) | |
| 38 #else | |
| 39 void BMKBRP(struct BitMap *a,WORD b, WORD c,struct RastPort *d,WORD e,WORD f,WORD g,WORD h,UBYTE i,APTR j) | |
| 40 {BltMaskBitMapRastPort(a,b,c,d,e,f,g,h,i,j);} | |
| 41 | |
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42 void BBRP(struct BitMap *a,WORD b, WORD c,struct RastPort *d,WORD e,WORD f,WORD g,WORD h,UBYTE i) |
| 0 | 43 {BltBitMapRastPort(a,b,c,d,e,f,g,h,i);} |
| 44 | |
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45 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 | 46 {BltBitMap(a,b,c,d,e,f,g,h,i,j,k);} |
| 47 #endif | |
| 48 | |
| 49 int CGX_SetHWColorKey(_THIS,SDL_Surface *surface, Uint32 key) | |
| 50 { | |
| 51 if(surface->hwdata) | |
| 52 { | |
| 53 if(surface->hwdata->mask) | |
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54 SDL_free(surface->hwdata->mask); |
| 0 | 55 |
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56 if(surface->hwdata->mask=SDL_malloc(RASSIZE(surface->w,surface->h))) |
| 0 | 57 { |
| 58 Uint32 pitch,ok=0; | |
| 59 APTR lock; | |
| 60 | |
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61 SDL_memset(surface->hwdata->mask,255,RASSIZE(surface->w,surface->h)); |
| 0 | 62 |
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63 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 | 64 |
| 65 if(lock=LockBitMapTags(surface->hwdata->bmap,LBMI_BASEADDRESS,(ULONG)&surface->pixels, | |
| 66 LBMI_BYTESPERROW,(ULONG)&pitch,TAG_DONE)) | |
| 67 { | |
| 68 switch(surface->format->BytesPerPixel) | |
| 69 { | |
| 70 case 1: | |
| 71 { | |
| 72 unsigned char k=key; | |
| 73 register int i,j,t; | |
| 74 register unsigned char *dest=surface->hwdata->mask,*map=surface->pixels; | |
| 75 | |
| 76 pitch-=surface->w; | |
| 77 | |
| 78 for(i=0;i<surface->h;i++) | |
| 79 { | |
| 80 for(t=128,j=0;j<surface->w;j++) | |
| 81 { | |
| 82 if(*map==k) | |
| 83 *dest&=~t; | |
| 84 | |
| 85 t>>=1; | |
| 86 | |
| 87 if(t==0) | |
| 88 { | |
| 89 dest++; | |
| 90 t=128; | |
| 91 } | |
| 92 map++; | |
| 93 } | |
| 94 map+=pitch; | |
| 95 } | |
| 96 } | |
| 97 break; | |
| 98 case 2: | |
| 99 { | |
| 100 Uint16 k=key,*mapw; | |
| 101 register int i,j,t; | |
| 102 register unsigned char *dest=surface->hwdata->mask,*map=surface->pixels; | |
| 103 | |
| 104 for(i=surface->h;i;--i) | |
| 105 { | |
| 106 mapw=(Uint16 *)map; | |
| 107 | |
| 108 for(t=128,j=surface->w;j;--j) | |
| 109 { | |
| 110 if(*mapw==k) | |
| 111 *dest&=~t; | |
| 112 | |
| 113 t>>=1; | |
| 114 | |
| 115 if(t==0) | |
| 116 { | |
| 117 dest++; | |
| 118 t=128; | |
| 119 } | |
| 120 mapw++; | |
| 121 } | |
| 122 map+=pitch; | |
| 123 } | |
| 124 } | |
| 125 break; | |
| 126 case 4: | |
| 127 { | |
| 128 Uint32 *mapl; | |
| 129 register int i,j,t; | |
| 130 register unsigned char *dest=surface->hwdata->mask,*map=surface->pixels; | |
| 131 | |
| 132 for(i=surface->h;i;--i) | |
| 133 { | |
| 134 mapl=(Uint32 *)map; | |
| 135 | |
| 136 for(t=128,j=surface->w;j;--j) | |
| 137 { | |
| 138 if(*mapl==key) | |
| 139 *dest&=~t; | |
| 140 | |
| 141 t>>=1; | |
| 142 | |
| 143 if(t==0) | |
| 144 { | |
| 145 dest++; | |
| 146 t=128; | |
| 147 } | |
| 148 mapl++; | |
| 149 } | |
| 150 map+=pitch; | |
| 151 } | |
| 152 | |
| 153 } | |
| 154 break; | |
| 155 default: | |
| 156 D(bug("Pixel mode non supported for color key...")); | |
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157 SDL_free(surface->hwdata->mask); |
| 0 | 158 surface->hwdata->mask=NULL; |
| 159 ok=-1; | |
| 160 } | |
| 161 UnLockBitMap(lock); | |
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162 D(bug("...Colorkey built!\n")); |
| 0 | 163 return ok; |
| 164 } | |
| 165 } | |
| 166 } | |
| 167 D(bug("HW colorkey not supported for this depth\n")); | |
| 168 | |
| 169 return -1; | |
| 170 } | |
| 171 | |
| 172 int CGX_CheckHWBlit(_THIS,SDL_Surface *src,SDL_Surface *dst) | |
| 173 { | |
| 174 // Doesn't support yet alpha blitting | |
| 175 | |
| 176 if(src->hwdata&& !(src->flags & (SDL_SRCALPHA))) | |
| 177 { | |
| 178 D(bug("CheckHW blit... OK!\n")); | |
| 179 | |
| 180 if ( (src->flags & SDL_SRCCOLORKEY) == SDL_SRCCOLORKEY ) { | |
| 181 if ( CGX_SetHWColorKey(this, src, src->format->colorkey) < 0 ) { | |
| 182 src->flags &= ~SDL_HWACCEL; | |
| 183 return -1; | |
| 184 } | |
| 185 } | |
| 186 | |
| 187 src->flags|=SDL_HWACCEL; | |
| 188 src->map->hw_blit = CGX_HWAccelBlit; | |
| 189 return 1; | |
| 190 } | |
| 191 else | |
| 192 src->flags &= ~SDL_HWACCEL; | |
| 193 | |
| 194 D(bug("CheckHW blit... NO!\n")); | |
| 195 | |
| 196 return 0; | |
| 197 } | |
| 198 | |
| 199 static int temprp_init=0; | |
| 200 static struct RastPort temprp; | |
| 201 | |
| 202 static int CGX_HWAccelBlit(SDL_Surface *src, SDL_Rect *srcrect, | |
| 203 SDL_Surface *dst, SDL_Rect *dstrect) | |
| 204 { | |
| 205 struct SDL_VideoDevice *this=src->hwdata->videodata; | |
| 206 | |
| 207 // D(bug("Accel blit!\n")); | |
| 208 | |
| 209 if(src->flags&SDL_SRCCOLORKEY && src->hwdata->mask) | |
| 210 { | |
| 211 if(dst==SDL_VideoSurface) | |
| 212 { | |
| 213 BMKBRP(src->hwdata->bmap,srcrect->x,srcrect->y, | |
| 214 SDL_RastPort,dstrect->x+SDL_Window->BorderLeft,dstrect->y+SDL_Window->BorderTop, | |
| 215 srcrect->w,srcrect->h,0xc0,src->hwdata->mask); | |
| 216 } | |
| 217 else if(dst->hwdata) | |
| 218 { | |
| 219 if(!temprp_init) | |
| 220 { | |
| 221 InitRastPort(&temprp); | |
| 222 temprp_init=1; | |
| 223 } | |
| 224 temprp.BitMap=(struct BitMap *)dst->hwdata->bmap; | |
| 225 | |
| 226 BMKBRP(src->hwdata->bmap,srcrect->x,srcrect->y, | |
| 227 &temprp,dstrect->x,dstrect->y, | |
| 228 srcrect->w,srcrect->h,0xc0,src->hwdata->mask); | |
| 229 | |
| 230 } | |
| 231 } | |
| 232 else if(dst==SDL_VideoSurface) | |
| 233 { | |
| 234 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); | |
| 235 } | |
| 236 else if(dst->hwdata) | |
| 237 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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238 |
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239 return 0; |
| 0 | 240 } |
| 241 | |
| 242 int CGX_FillHWRect(_THIS,SDL_Surface *dst,SDL_Rect *dstrect,Uint32 color) | |
| 243 { | |
| 244 if(dst==SDL_VideoSurface) | |
| 245 { | |
| 246 FillPixelArray(SDL_RastPort,dstrect->x+SDL_Window->BorderLeft,dstrect->y+SDL_Window->BorderTop,dstrect->w,dstrect->h,color); | |
| 247 } | |
| 248 else if(dst->hwdata) | |
| 249 { | |
| 250 if(!temprp_init) | |
| 251 { | |
| 252 InitRastPort(&temprp); | |
| 253 temprp_init=1; | |
| 254 } | |
| 255 | |
| 256 temprp.BitMap=(struct BitMap *)dst->hwdata->bmap; | |
| 257 | |
| 258 FillPixelArray(&temprp,dstrect->x,dstrect->y,dstrect->w,dstrect->h,color); | |
| 259 } | |
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260 return 0; |
| 0 | 261 } |