Mercurial > sdl-ios-xcode
annotate src/video/cybergfx/SDL_cgxaccel.c @ 1768:814f9f2c7a33
Fixed bug #80
Date: 21 Apr 2003 17:20:20 +0100
From: Alan Swanson <swanson@uklinux.net>
Subject: [SDL] New XFree 4.3 Video Mode Patch
If you look at the unsorted list of modes returned by X, here's mine;
1280 x 1024 @ 85.0 >
1024 x 768 @ 100.3 > USER
800 x 600 @ 125.5 > SET
640 x 480 @ 124.9 >
1280 x 1024 @ 75.0 ]
1280 x 1024 @ 60.0 ]
1280 x 960 @ 85.0 ] X11
1280 x 960 @ 60.0 ] AUTO
1152 x 864 @ 75.0 ]=20
1152 x 768 @ 54.8 ]
960 x 720 @ 120.0 ]
...
640 x 400 @ 85.1 ] 256k
576 x 432 @ 150.0 ] 249k PIXEL
640 x 350 @ 85.1 ] 224k COUNT
576 x 384 @ 109.6 ] 221k
...
The user set modes come first followed by X set modes which are ordered
by decreasing number of pixels and refresh.
The reason why every other library or program not using SDL working is
due to SDL scanning the modes in reverse getting X11 provided modes
modes with the lowest refresh.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Fri, 05 May 2006 05:50:26 +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 } |