Mercurial > sdl-ios-xcode
annotate src/video/cybergfx/SDL_cgxaccel.c @ 311:2847fd83f115
Date: Fri, 15 Mar 2002 18:24:59 GMT+1
From: Patrice Mandin <pmandin@caramail.com>
Subject: [SDL] [PATCH] Atari port, bug in xbios driver driver
Hello,
This patch correct a stupid mistake in the FlipHWSurface
function, where I forgot to update surface->pixels when
using a double buffered surface.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Wed, 20 Mar 2002 02:24:29 +0000 |
| parents | dcb5e869f8b5 |
| children | c9b51268668f |
| 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, 1998, 1999, 2000 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 |
| 0 | 28 #include "SDL_error.h" |
| 29 #include "SDL_endian.h" | |
| 30 #include "SDL_sysvideo.h" | |
| 31 #include "SDL_blit.h" | |
| 32 #include "SDL_video.h" | |
| 33 #include "SDL_cgxvideo.h" | |
| 34 | |
| 35 static int CGX_HWAccelBlit(SDL_Surface *src, SDL_Rect *srcrect, | |
| 36 SDL_Surface *dst, SDL_Rect *dstrect); | |
| 37 | |
| 38 // These are needed to avoid register troubles with gcc -O2! | |
| 39 | |
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40 #if defined(__SASC) || defined(__PPC__) || defined(MORPHOS) |
| 0 | 41 #define BMKBRP(a,b,c,d,e,f,g,h,i,j) BltMaskBitMapRastPort(a,b,c,d,e,f,g,h,i,j) |
| 42 #define BBRP(a,b,c,d,e,f,g,h,i) BltBitMapRastPort(a,b,c,d,e,f,g,h,i) | |
| 43 #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) | |
| 44 #else | |
| 45 void BMKBRP(struct BitMap *a,WORD b, WORD c,struct RastPort *d,WORD e,WORD f,WORD g,WORD h,UBYTE i,APTR j) | |
| 46 {BltMaskBitMapRastPort(a,b,c,d,e,f,g,h,i,j);} | |
| 47 | |
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48 void BBRP(struct BitMap *a,WORD b, WORD c,struct RastPort *d,WORD e,WORD f,WORD g,WORD h,UBYTE i) |
| 0 | 49 {BltBitMapRastPort(a,b,c,d,e,f,g,h,i);} |
| 50 | |
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51 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 | 52 {BltBitMap(a,b,c,d,e,f,g,h,i,j,k);} |
| 53 #endif | |
| 54 | |
| 55 int CGX_SetHWColorKey(_THIS,SDL_Surface *surface, Uint32 key) | |
| 56 { | |
| 57 if(surface->hwdata) | |
| 58 { | |
| 59 if(surface->hwdata->mask) | |
| 60 free(surface->hwdata->mask); | |
| 61 | |
| 62 if(surface->hwdata->mask=malloc(RASSIZE(surface->w,surface->h))) | |
| 63 { | |
| 64 Uint32 pitch,ok=0; | |
| 65 APTR lock; | |
| 66 | |
| 67 memset(surface->hwdata->mask,255,RASSIZE(surface->w,surface->h)); | |
| 68 | |
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69 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 | 70 |
| 71 if(lock=LockBitMapTags(surface->hwdata->bmap,LBMI_BASEADDRESS,(ULONG)&surface->pixels, | |
| 72 LBMI_BYTESPERROW,(ULONG)&pitch,TAG_DONE)) | |
| 73 { | |
| 74 switch(surface->format->BytesPerPixel) | |
| 75 { | |
| 76 case 1: | |
| 77 { | |
| 78 unsigned char k=key; | |
| 79 register int i,j,t; | |
| 80 register unsigned char *dest=surface->hwdata->mask,*map=surface->pixels; | |
| 81 | |
| 82 pitch-=surface->w; | |
| 83 | |
| 84 for(i=0;i<surface->h;i++) | |
| 85 { | |
| 86 for(t=128,j=0;j<surface->w;j++) | |
| 87 { | |
| 88 if(*map==k) | |
| 89 *dest&=~t; | |
| 90 | |
| 91 t>>=1; | |
| 92 | |
| 93 if(t==0) | |
| 94 { | |
| 95 dest++; | |
| 96 t=128; | |
| 97 } | |
| 98 map++; | |
| 99 } | |
| 100 map+=pitch; | |
| 101 } | |
| 102 } | |
| 103 break; | |
| 104 case 2: | |
| 105 { | |
| 106 Uint16 k=key,*mapw; | |
| 107 register int i,j,t; | |
| 108 register unsigned char *dest=surface->hwdata->mask,*map=surface->pixels; | |
| 109 | |
| 110 for(i=surface->h;i;--i) | |
| 111 { | |
| 112 mapw=(Uint16 *)map; | |
| 113 | |
| 114 for(t=128,j=surface->w;j;--j) | |
| 115 { | |
| 116 if(*mapw==k) | |
| 117 *dest&=~t; | |
| 118 | |
| 119 t>>=1; | |
| 120 | |
| 121 if(t==0) | |
| 122 { | |
| 123 dest++; | |
| 124 t=128; | |
| 125 } | |
| 126 mapw++; | |
| 127 } | |
| 128 map+=pitch; | |
| 129 } | |
| 130 } | |
| 131 break; | |
| 132 case 4: | |
| 133 { | |
| 134 Uint32 *mapl; | |
| 135 register int i,j,t; | |
| 136 register unsigned char *dest=surface->hwdata->mask,*map=surface->pixels; | |
| 137 | |
| 138 for(i=surface->h;i;--i) | |
| 139 { | |
| 140 mapl=(Uint32 *)map; | |
| 141 | |
| 142 for(t=128,j=surface->w;j;--j) | |
| 143 { | |
| 144 if(*mapl==key) | |
| 145 *dest&=~t; | |
| 146 | |
| 147 t>>=1; | |
| 148 | |
| 149 if(t==0) | |
| 150 { | |
| 151 dest++; | |
| 152 t=128; | |
| 153 } | |
| 154 mapl++; | |
| 155 } | |
| 156 map+=pitch; | |
| 157 } | |
| 158 | |
| 159 } | |
| 160 break; | |
| 161 default: | |
| 162 D(bug("Pixel mode non supported for color key...")); | |
| 163 free(surface->hwdata->mask); | |
| 164 surface->hwdata->mask=NULL; | |
| 165 ok=-1; | |
| 166 } | |
| 167 UnLockBitMap(lock); | |
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168 D(bug("...Colorkey built!\n")); |
| 0 | 169 return ok; |
| 170 } | |
| 171 } | |
| 172 } | |
| 173 D(bug("HW colorkey not supported for this depth\n")); | |
| 174 | |
| 175 return -1; | |
| 176 } | |
| 177 | |
| 178 int CGX_CheckHWBlit(_THIS,SDL_Surface *src,SDL_Surface *dst) | |
| 179 { | |
| 180 // Doesn't support yet alpha blitting | |
| 181 | |
| 182 if(src->hwdata&& !(src->flags & (SDL_SRCALPHA))) | |
| 183 { | |
| 184 D(bug("CheckHW blit... OK!\n")); | |
| 185 | |
| 186 if ( (src->flags & SDL_SRCCOLORKEY) == SDL_SRCCOLORKEY ) { | |
| 187 if ( CGX_SetHWColorKey(this, src, src->format->colorkey) < 0 ) { | |
| 188 src->flags &= ~SDL_HWACCEL; | |
| 189 return -1; | |
| 190 } | |
| 191 } | |
| 192 | |
| 193 src->flags|=SDL_HWACCEL; | |
| 194 src->map->hw_blit = CGX_HWAccelBlit; | |
| 195 return 1; | |
| 196 } | |
| 197 else | |
| 198 src->flags &= ~SDL_HWACCEL; | |
| 199 | |
| 200 D(bug("CheckHW blit... NO!\n")); | |
| 201 | |
| 202 return 0; | |
| 203 } | |
| 204 | |
| 205 static int temprp_init=0; | |
| 206 static struct RastPort temprp; | |
| 207 | |
| 208 static int CGX_HWAccelBlit(SDL_Surface *src, SDL_Rect *srcrect, | |
| 209 SDL_Surface *dst, SDL_Rect *dstrect) | |
| 210 { | |
| 211 struct SDL_VideoDevice *this=src->hwdata->videodata; | |
| 212 | |
| 213 // D(bug("Accel blit!\n")); | |
| 214 | |
| 215 if(src->flags&SDL_SRCCOLORKEY && src->hwdata->mask) | |
| 216 { | |
| 217 if(dst==SDL_VideoSurface) | |
| 218 { | |
| 219 BMKBRP(src->hwdata->bmap,srcrect->x,srcrect->y, | |
| 220 SDL_RastPort,dstrect->x+SDL_Window->BorderLeft,dstrect->y+SDL_Window->BorderTop, | |
| 221 srcrect->w,srcrect->h,0xc0,src->hwdata->mask); | |
| 222 } | |
| 223 else if(dst->hwdata) | |
| 224 { | |
| 225 if(!temprp_init) | |
| 226 { | |
| 227 InitRastPort(&temprp); | |
| 228 temprp_init=1; | |
| 229 } | |
| 230 temprp.BitMap=(struct BitMap *)dst->hwdata->bmap; | |
| 231 | |
| 232 BMKBRP(src->hwdata->bmap,srcrect->x,srcrect->y, | |
| 233 &temprp,dstrect->x,dstrect->y, | |
| 234 srcrect->w,srcrect->h,0xc0,src->hwdata->mask); | |
| 235 | |
| 236 } | |
| 237 } | |
| 238 else if(dst==SDL_VideoSurface) | |
| 239 { | |
| 240 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); | |
| 241 } | |
| 242 else if(dst->hwdata) | |
| 243 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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244 |
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245 return 0; |
| 0 | 246 } |
| 247 | |
| 248 int CGX_FillHWRect(_THIS,SDL_Surface *dst,SDL_Rect *dstrect,Uint32 color) | |
| 249 { | |
| 250 if(dst==SDL_VideoSurface) | |
| 251 { | |
| 252 FillPixelArray(SDL_RastPort,dstrect->x+SDL_Window->BorderLeft,dstrect->y+SDL_Window->BorderTop,dstrect->w,dstrect->h,color); | |
| 253 } | |
| 254 else if(dst->hwdata) | |
| 255 { | |
| 256 if(!temprp_init) | |
| 257 { | |
| 258 InitRastPort(&temprp); | |
| 259 temprp_init=1; | |
| 260 } | |
| 261 | |
| 262 temprp.BitMap=(struct BitMap *)dst->hwdata->bmap; | |
| 263 | |
| 264 FillPixelArray(&temprp,dstrect->x,dstrect->y,dstrect->w,dstrect->h,color); | |
| 265 } | |
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266 return 0; |
| 0 | 267 } |