Mercurial > sdl-ios-xcode
annotate src/video/cybergfx/SDL_cgxaccel.c @ 1057:e9d23bb80140
Date: Mon, 02 May 2005 04:23:16 -0500
From: Jonathan Atkins
Subject: Re: [PATCH] *CRITICAL* 8bit direct RGB palette not being created
I think that SDL_AllocFormat should create the palette for all 8bit
surfaces. And when the RGBAmasks match the normal 3:3:2:0 we need to
apply the old behavior. If the mask doesn't match that, then we need
to make the right palette assuming the masks are valid (I don't think
we validate any masks for high color surfaces...so we wouldn't here)
Then there's always a palette available for the 8bit surfaces.
This restores the normal behavior and allows for masks to create
palettes automatically for odd masks even, which would be a neato
thing to have in there, as SDL never did this before.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Mon, 16 May 2005 05:34:58 +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 } |