Mercurial > sdl-ios-xcode
annotate src/video/cybergfx/SDL_cgxaccel.c @ 1830:19555149bb66
Add a reminder to fix current->w,current->h
author | Patrice Mandin <patmandin@gmail.com> |
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date | Sun, 14 May 2006 09:55:22 +0000 |
parents | d910939febfa |
children | 782fd950bd46 c121d94672cb |
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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 } |