Mercurial > sdl-ios-xcode
annotate src/video/windx5/SDL_dx5yuv.c @ 4050:ef815c44c662 SDL-1.2
Warn Visual C++ users if they have a stale configure generated SDL_config.h
author | Sam Lantinga <slouken@libsdl.org> |
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date | Thu, 12 Jul 2007 02:51:58 +0000 |
parents | 51038e80ae59 |
children | 782fd950bd46 c121d94672cb 96ce26f24b01 |
rev | line source |
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0 | 1 /* |
2 SDL - Simple DirectMedia Layer | |
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3 Copyright (C) 1997-2006 Sam Lantinga |
0 | 4 |
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 |
0 | 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. |
0 | 9 |
10 This library is distributed in the hope that it will be useful, | |
11 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
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13 Lesser General Public License for more details. |
0 | 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 |
0 | 18 |
19 Sam Lantinga | |
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20 slouken@libsdl.org |
0 | 21 */ |
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22 #include "SDL_config.h" |
0 | 23 |
24 /* This is the DirectDraw implementation of YUV video overlays */ | |
25 | |
26 #include "SDL_video.h" | |
27 #include "SDL_dx5yuv_c.h" | |
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28 #include "../SDL_yuvfuncs.h" |
0 | 29 |
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30 //#define USE_DIRECTX_OVERLAY |
0 | 31 |
32 /* The functions used to manipulate software video overlays */ | |
33 static struct private_yuvhwfuncs dx5_yuvfuncs = { | |
34 DX5_LockYUVOverlay, | |
35 DX5_UnlockYUVOverlay, | |
36 DX5_DisplayYUVOverlay, | |
37 DX5_FreeYUVOverlay | |
38 }; | |
39 | |
40 struct private_yuvhwdata { | |
41 LPDIRECTDRAWSURFACE3 surface; | |
42 | |
43 /* These are just so we don't have to allocate them separately */ | |
44 Uint16 pitches[3]; | |
45 Uint8 *planes[3]; | |
46 }; | |
47 | |
48 | |
49 static LPDIRECTDRAWSURFACE3 CreateYUVSurface(_THIS, | |
50 int width, int height, Uint32 format) | |
51 { | |
52 HRESULT result; | |
53 LPDIRECTDRAWSURFACE dd_surface1; | |
54 LPDIRECTDRAWSURFACE3 dd_surface3; | |
55 DDSURFACEDESC ddsd; | |
56 | |
57 /* Set up the surface description */ | |
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58 SDL_memset(&ddsd, 0, sizeof(ddsd)); |
0 | 59 ddsd.dwSize = sizeof(ddsd); |
60 ddsd.dwFlags = (DDSD_WIDTH|DDSD_HEIGHT|DDSD_CAPS|DDSD_PIXELFORMAT); | |
61 ddsd.dwWidth = width; | |
62 ddsd.dwHeight= height; | |
63 #ifdef USE_DIRECTX_OVERLAY | |
64 ddsd.ddsCaps.dwCaps = (DDSCAPS_OVERLAY|DDSCAPS_VIDEOMEMORY); | |
65 #else | |
66 ddsd.ddsCaps.dwCaps = (DDSCAPS_OFFSCREENPLAIN|DDSCAPS_VIDEOMEMORY); | |
67 #endif | |
68 ddsd.ddpfPixelFormat.dwSize = sizeof(ddsd.ddpfPixelFormat); | |
69 ddsd.ddpfPixelFormat.dwFlags = DDPF_FOURCC; | |
70 ddsd.ddpfPixelFormat.dwFourCC = format; | |
71 | |
72 /* Create the DirectDraw video surface */ | |
73 result = IDirectDraw2_CreateSurface(ddraw2, &ddsd, &dd_surface1, NULL); | |
74 if ( result != DD_OK ) { | |
75 SetDDerror("DirectDraw2::CreateSurface", result); | |
76 return(NULL); | |
77 } | |
78 result = IDirectDrawSurface_QueryInterface(dd_surface1, | |
79 &IID_IDirectDrawSurface3, (LPVOID *)&dd_surface3); | |
80 IDirectDrawSurface_Release(dd_surface1); | |
81 if ( result != DD_OK ) { | |
82 SetDDerror("DirectDrawSurface::QueryInterface", result); | |
83 return(NULL); | |
84 } | |
85 | |
86 /* Make sure the surface format was set properly */ | |
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87 SDL_memset(&ddsd, 0, sizeof(ddsd)); |
0 | 88 ddsd.dwSize = sizeof(ddsd); |
89 result = IDirectDrawSurface3_Lock(dd_surface3, NULL, | |
90 &ddsd, DDLOCK_NOSYSLOCK, NULL); | |
91 if ( result != DD_OK ) { | |
92 SetDDerror("DirectDrawSurface3::Lock", result); | |
93 IDirectDrawSurface_Release(dd_surface3); | |
94 return(NULL); | |
95 } | |
96 IDirectDrawSurface3_Unlock(dd_surface3, NULL); | |
97 | |
98 if ( !(ddsd.ddpfPixelFormat.dwFlags & DDPF_FOURCC) || | |
99 (ddsd.ddpfPixelFormat.dwFourCC != format) ) { | |
100 SDL_SetError("DDraw didn't use requested FourCC format"); | |
101 IDirectDrawSurface_Release(dd_surface3); | |
102 return(NULL); | |
103 } | |
104 | |
105 /* We're ready to go! */ | |
106 return(dd_surface3); | |
107 } | |
108 | |
109 #ifdef DEBUG_YUV | |
110 static char *PrintFOURCC(Uint32 code) | |
111 { | |
112 static char buf[5]; | |
113 | |
114 buf[3] = code >> 24; | |
115 buf[2] = (code >> 16) & 0xFF; | |
116 buf[1] = (code >> 8) & 0xFF; | |
117 buf[0] = (code & 0xFF); | |
118 return(buf); | |
119 } | |
120 #endif | |
121 | |
122 SDL_Overlay *DX5_CreateYUVOverlay(_THIS, int width, int height, Uint32 format, SDL_Surface *display) | |
123 { | |
124 SDL_Overlay *overlay; | |
125 struct private_yuvhwdata *hwdata; | |
126 | |
127 #ifdef DEBUG_YUV | |
128 DWORD numcodes; | |
129 DWORD *codes; | |
130 | |
131 printf("FOURCC format requested: 0x%x\n", PrintFOURCC(format)); | |
132 IDirectDraw2_GetFourCCCodes(ddraw2, &numcodes, NULL); | |
133 if ( numcodes ) { | |
134 DWORD i; | |
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135 codes = SDL_malloc(numcodes*sizeof(*codes)); |
0 | 136 if ( codes ) { |
137 IDirectDraw2_GetFourCCCodes(ddraw2, &numcodes, codes); | |
138 for ( i=0; i<numcodes; ++i ) { | |
139 fprintf(stderr, "Code %d: 0x%x\n", i, PrintFOURCC(codes[i])); | |
140 } | |
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141 SDL_free(codes); |
0 | 142 } |
143 } else { | |
144 fprintf(stderr, "No FOURCC codes supported\n"); | |
145 } | |
146 #endif | |
147 | |
148 /* Create the overlay structure */ | |
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149 overlay = (SDL_Overlay *)SDL_malloc(sizeof *overlay); |
0 | 150 if ( overlay == NULL ) { |
151 SDL_OutOfMemory(); | |
152 return(NULL); | |
153 } | |
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154 SDL_memset(overlay, 0, (sizeof *overlay)); |
0 | 155 |
156 /* Fill in the basic members */ | |
157 overlay->format = format; | |
158 overlay->w = width; | |
159 overlay->h = height; | |
160 | |
161 /* Set up the YUV surface function structure */ | |
162 overlay->hwfuncs = &dx5_yuvfuncs; | |
163 | |
164 /* Create the pixel data and lookup tables */ | |
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165 hwdata = (struct private_yuvhwdata *)SDL_malloc(sizeof *hwdata); |
0 | 166 overlay->hwdata = hwdata; |
167 if ( hwdata == NULL ) { | |
168 SDL_OutOfMemory(); | |
169 SDL_FreeYUVOverlay(overlay); | |
170 return(NULL); | |
171 } | |
172 hwdata->surface = CreateYUVSurface(this, width, height, format); | |
173 if ( hwdata->surface == NULL ) { | |
174 SDL_FreeYUVOverlay(overlay); | |
175 return(NULL); | |
176 } | |
177 overlay->hw_overlay = 1; | |
178 | |
179 /* Set up the plane pointers */ | |
180 overlay->pitches = hwdata->pitches; | |
181 overlay->pixels = hwdata->planes; | |
182 switch (format) { | |
183 case SDL_YV12_OVERLAY: | |
184 case SDL_IYUV_OVERLAY: | |
185 overlay->planes = 3; | |
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186 break; |
0 | 187 default: |
188 overlay->planes = 1; | |
189 break; | |
190 } | |
191 | |
192 /* We're all done.. */ | |
193 return(overlay); | |
194 } | |
195 | |
196 int DX5_LockYUVOverlay(_THIS, SDL_Overlay *overlay) | |
197 { | |
198 HRESULT result; | |
199 LPDIRECTDRAWSURFACE3 surface; | |
200 DDSURFACEDESC ddsd; | |
201 | |
202 surface = overlay->hwdata->surface; | |
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203 SDL_memset(&ddsd, 0, sizeof(ddsd)); |
0 | 204 ddsd.dwSize = sizeof(ddsd); |
205 result = IDirectDrawSurface3_Lock(surface, NULL, | |
206 &ddsd, DDLOCK_NOSYSLOCK, NULL); | |
207 if ( result == DDERR_SURFACELOST ) { | |
208 result = IDirectDrawSurface3_Restore(surface); | |
209 result = IDirectDrawSurface3_Lock(surface, NULL, &ddsd, | |
210 (DDLOCK_NOSYSLOCK|DDLOCK_WAIT), NULL); | |
211 } | |
212 if ( result != DD_OK ) { | |
213 SetDDerror("DirectDrawSurface3::Lock", result); | |
214 return(-1); | |
215 } | |
216 | |
217 /* Find the pitch and offset values for the overlay */ | |
218 #if defined(NONAMELESSUNION) | |
219 overlay->pitches[0] = (Uint16)ddsd.u1.lPitch; | |
220 #else | |
221 overlay->pitches[0] = (Uint16)ddsd.lPitch; | |
222 #endif | |
223 overlay->pixels[0] = (Uint8 *)ddsd.lpSurface; | |
224 switch (overlay->format) { | |
225 case SDL_YV12_OVERLAY: | |
226 case SDL_IYUV_OVERLAY: | |
227 /* Add the two extra planes */ | |
228 overlay->pitches[1] = overlay->pitches[0] / 2; | |
229 overlay->pitches[2] = overlay->pitches[0] / 2; | |
230 overlay->pixels[1] = overlay->pixels[0] + | |
231 overlay->pitches[0] * overlay->h; | |
232 overlay->pixels[2] = overlay->pixels[1] + | |
233 overlay->pitches[1] * overlay->h / 2; | |
234 break; | |
235 default: | |
236 /* Only one plane, no worries */ | |
237 break; | |
238 } | |
239 return(0); | |
240 } | |
241 | |
242 void DX5_UnlockYUVOverlay(_THIS, SDL_Overlay *overlay) | |
243 { | |
244 LPDIRECTDRAWSURFACE3 surface; | |
245 | |
246 surface = overlay->hwdata->surface; | |
247 IDirectDrawSurface3_Unlock(surface, NULL); | |
248 } | |
249 | |
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250 int DX5_DisplayYUVOverlay(_THIS, SDL_Overlay *overlay, SDL_Rect *src, SDL_Rect *dst) |
0 | 251 { |
252 HRESULT result; | |
253 LPDIRECTDRAWSURFACE3 surface; | |
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254 RECT srcrect, dstrect; |
0 | 255 |
256 surface = overlay->hwdata->surface; | |
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257 srcrect.top = src->y; |
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258 srcrect.bottom = srcrect.top+src->h; |
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259 srcrect.left = src->x; |
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260 srcrect.right = srcrect.left+src->w; |
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261 dstrect.top = SDL_bounds.top+dst->y; |
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262 dstrect.left = SDL_bounds.left+dst->x; |
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263 dstrect.bottom = dstrect.top+dst->h; |
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264 dstrect.right = dstrect.left+dst->w; |
0 | 265 #ifdef USE_DIRECTX_OVERLAY |
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266 result = IDirectDrawSurface3_UpdateOverlay(surface, &srcrect, |
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267 SDL_primary, &dstrect, DDOVER_SHOW, NULL); |
0 | 268 if ( result != DD_OK ) { |
269 SetDDerror("DirectDrawSurface3::UpdateOverlay", result); | |
270 return(-1); | |
271 } | |
272 #else | |
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273 result = IDirectDrawSurface3_Blt(SDL_primary, &dstrect, surface, &srcrect, |
0 | 274 DDBLT_WAIT, NULL); |
275 if ( result != DD_OK ) { | |
276 SetDDerror("DirectDrawSurface3::Blt", result); | |
277 return(-1); | |
278 } | |
279 #endif | |
280 return(0); | |
281 } | |
282 | |
283 void DX5_FreeYUVOverlay(_THIS, SDL_Overlay *overlay) | |
284 { | |
285 struct private_yuvhwdata *hwdata; | |
286 | |
287 hwdata = overlay->hwdata; | |
288 if ( hwdata ) { | |
289 if ( hwdata->surface ) { | |
290 IDirectDrawSurface_Release(hwdata->surface); | |
291 } | |
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292 SDL_free(hwdata); |
0 | 293 } |
294 } | |
295 |