Mercurial > sdl-ios-xcode
annotate src/video/windx5/SDL_dx5yuv.c @ 1312:c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
I batch edited these files, so please let me know if I've accidentally removed anybody's
credit here.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Wed, 01 Feb 2006 06:32:25 +0000 |
| parents | e06ec825242d |
| children | 450721ad5436 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
|
1312
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
811
diff
changeset
|
3 Copyright (C) 1997-2006 Sam Lantinga |
| 0 | 4 |
| 5 This library is free software; you can redistribute it and/or | |
|
1312
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
811
diff
changeset
|
6 modify it under the terms of the GNU Lesser General Public |
| 0 | 7 License as published by the Free Software Foundation; either |
|
1312
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
811
diff
changeset
|
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 | |
|
1312
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
811
diff
changeset
|
13 Lesser General Public License for more details. |
| 0 | 14 |
|
1312
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
811
diff
changeset
|
15 You should have received a copy of the GNU Lesser General Public |
|
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
811
diff
changeset
|
16 License along with this library; if not, write to the Free Software |
|
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
811
diff
changeset
|
17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| 0 | 18 |
| 19 Sam Lantinga | |
|
252
e8157fcb3114
Updated the source with the correct e-mail address
Sam Lantinga <slouken@libsdl.org>
parents:
33
diff
changeset
|
20 slouken@libsdl.org |
| 0 | 21 */ |
| 22 | |
| 23 /* This is the DirectDraw implementation of YUV video overlays */ | |
| 24 | |
| 25 #include <stdlib.h> | |
| 26 #include <string.h> | |
| 27 | |
| 28 #include "SDL_error.h" | |
| 29 #include "SDL_video.h" | |
| 30 #include "SDL_dx5yuv_c.h" | |
| 31 #include "SDL_yuvfuncs.h" | |
| 32 | |
|
811
e06ec825242d
Don't use hardware overlay by default (seems much faster this way)
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
33 //#define USE_DIRECTX_OVERLAY |
| 0 | 34 |
| 35 /* The functions used to manipulate software video overlays */ | |
| 36 static struct private_yuvhwfuncs dx5_yuvfuncs = { | |
| 37 DX5_LockYUVOverlay, | |
| 38 DX5_UnlockYUVOverlay, | |
| 39 DX5_DisplayYUVOverlay, | |
| 40 DX5_FreeYUVOverlay | |
| 41 }; | |
| 42 | |
| 43 struct private_yuvhwdata { | |
| 44 LPDIRECTDRAWSURFACE3 surface; | |
| 45 | |
| 46 /* These are just so we don't have to allocate them separately */ | |
| 47 Uint16 pitches[3]; | |
| 48 Uint8 *planes[3]; | |
| 49 }; | |
| 50 | |
| 51 | |
| 52 static LPDIRECTDRAWSURFACE3 CreateYUVSurface(_THIS, | |
| 53 int width, int height, Uint32 format) | |
| 54 { | |
| 55 HRESULT result; | |
| 56 LPDIRECTDRAWSURFACE dd_surface1; | |
| 57 LPDIRECTDRAWSURFACE3 dd_surface3; | |
| 58 DDSURFACEDESC ddsd; | |
| 59 | |
| 60 /* Set up the surface description */ | |
| 61 memset(&ddsd, 0, sizeof(ddsd)); | |
| 62 ddsd.dwSize = sizeof(ddsd); | |
| 63 ddsd.dwFlags = (DDSD_WIDTH|DDSD_HEIGHT|DDSD_CAPS|DDSD_PIXELFORMAT); | |
| 64 ddsd.dwWidth = width; | |
| 65 ddsd.dwHeight= height; | |
| 66 #ifdef USE_DIRECTX_OVERLAY | |
| 67 ddsd.ddsCaps.dwCaps = (DDSCAPS_OVERLAY|DDSCAPS_VIDEOMEMORY); | |
| 68 #else | |
| 69 ddsd.ddsCaps.dwCaps = (DDSCAPS_OFFSCREENPLAIN|DDSCAPS_VIDEOMEMORY); | |
| 70 #endif | |
| 71 ddsd.ddpfPixelFormat.dwSize = sizeof(ddsd.ddpfPixelFormat); | |
| 72 ddsd.ddpfPixelFormat.dwFlags = DDPF_FOURCC; | |
| 73 ddsd.ddpfPixelFormat.dwFourCC = format; | |
| 74 | |
| 75 /* Create the DirectDraw video surface */ | |
| 76 result = IDirectDraw2_CreateSurface(ddraw2, &ddsd, &dd_surface1, NULL); | |
| 77 if ( result != DD_OK ) { | |
| 78 SetDDerror("DirectDraw2::CreateSurface", result); | |
| 79 return(NULL); | |
| 80 } | |
| 81 result = IDirectDrawSurface_QueryInterface(dd_surface1, | |
| 82 &IID_IDirectDrawSurface3, (LPVOID *)&dd_surface3); | |
| 83 IDirectDrawSurface_Release(dd_surface1); | |
| 84 if ( result != DD_OK ) { | |
| 85 SetDDerror("DirectDrawSurface::QueryInterface", result); | |
| 86 return(NULL); | |
| 87 } | |
| 88 | |
| 89 /* Make sure the surface format was set properly */ | |
| 90 memset(&ddsd, 0, sizeof(ddsd)); | |
| 91 ddsd.dwSize = sizeof(ddsd); | |
| 92 result = IDirectDrawSurface3_Lock(dd_surface3, NULL, | |
| 93 &ddsd, DDLOCK_NOSYSLOCK, NULL); | |
| 94 if ( result != DD_OK ) { | |
| 95 SetDDerror("DirectDrawSurface3::Lock", result); | |
| 96 IDirectDrawSurface_Release(dd_surface3); | |
| 97 return(NULL); | |
| 98 } | |
| 99 IDirectDrawSurface3_Unlock(dd_surface3, NULL); | |
| 100 | |
| 101 if ( !(ddsd.ddpfPixelFormat.dwFlags & DDPF_FOURCC) || | |
| 102 (ddsd.ddpfPixelFormat.dwFourCC != format) ) { | |
| 103 SDL_SetError("DDraw didn't use requested FourCC format"); | |
| 104 IDirectDrawSurface_Release(dd_surface3); | |
| 105 return(NULL); | |
| 106 } | |
| 107 | |
| 108 /* We're ready to go! */ | |
| 109 return(dd_surface3); | |
| 110 } | |
| 111 | |
| 112 #ifdef DEBUG_YUV | |
| 113 static char *PrintFOURCC(Uint32 code) | |
| 114 { | |
| 115 static char buf[5]; | |
| 116 | |
| 117 buf[3] = code >> 24; | |
| 118 buf[2] = (code >> 16) & 0xFF; | |
| 119 buf[1] = (code >> 8) & 0xFF; | |
| 120 buf[0] = (code & 0xFF); | |
| 121 return(buf); | |
| 122 } | |
| 123 #endif | |
| 124 | |
| 125 SDL_Overlay *DX5_CreateYUVOverlay(_THIS, int width, int height, Uint32 format, SDL_Surface *display) | |
| 126 { | |
| 127 SDL_Overlay *overlay; | |
| 128 struct private_yuvhwdata *hwdata; | |
| 129 | |
| 130 #ifdef DEBUG_YUV | |
| 131 DWORD numcodes; | |
| 132 DWORD *codes; | |
| 133 | |
| 134 printf("FOURCC format requested: 0x%x\n", PrintFOURCC(format)); | |
| 135 IDirectDraw2_GetFourCCCodes(ddraw2, &numcodes, NULL); | |
| 136 if ( numcodes ) { | |
| 137 DWORD i; | |
| 138 codes = malloc(numcodes*sizeof(*codes)); | |
| 139 if ( codes ) { | |
| 140 IDirectDraw2_GetFourCCCodes(ddraw2, &numcodes, codes); | |
| 141 for ( i=0; i<numcodes; ++i ) { | |
| 142 fprintf(stderr, "Code %d: 0x%x\n", i, PrintFOURCC(codes[i])); | |
| 143 } | |
| 144 free(codes); | |
| 145 } | |
| 146 } else { | |
| 147 fprintf(stderr, "No FOURCC codes supported\n"); | |
| 148 } | |
| 149 #endif | |
| 150 | |
| 151 /* Create the overlay structure */ | |
| 152 overlay = (SDL_Overlay *)malloc(sizeof *overlay); | |
| 153 if ( overlay == NULL ) { | |
| 154 SDL_OutOfMemory(); | |
| 155 return(NULL); | |
| 156 } | |
| 157 memset(overlay, 0, (sizeof *overlay)); | |
| 158 | |
| 159 /* Fill in the basic members */ | |
| 160 overlay->format = format; | |
| 161 overlay->w = width; | |
| 162 overlay->h = height; | |
| 163 | |
| 164 /* Set up the YUV surface function structure */ | |
| 165 overlay->hwfuncs = &dx5_yuvfuncs; | |
| 166 | |
| 167 /* Create the pixel data and lookup tables */ | |
| 168 hwdata = (struct private_yuvhwdata *)malloc(sizeof *hwdata); | |
| 169 overlay->hwdata = hwdata; | |
| 170 if ( hwdata == NULL ) { | |
| 171 SDL_OutOfMemory(); | |
| 172 SDL_FreeYUVOverlay(overlay); | |
| 173 return(NULL); | |
| 174 } | |
| 175 hwdata->surface = CreateYUVSurface(this, width, height, format); | |
| 176 if ( hwdata->surface == NULL ) { | |
| 177 SDL_FreeYUVOverlay(overlay); | |
| 178 return(NULL); | |
| 179 } | |
| 180 overlay->hw_overlay = 1; | |
| 181 | |
| 182 /* Set up the plane pointers */ | |
| 183 overlay->pitches = hwdata->pitches; | |
| 184 overlay->pixels = hwdata->planes; | |
| 185 switch (format) { | |
| 186 case SDL_YV12_OVERLAY: | |
| 187 case SDL_IYUV_OVERLAY: | |
| 188 overlay->planes = 3; | |
|
33
81a7158fa836
Silly bug fix from Billy Biggs
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
189 break; |
| 0 | 190 default: |
| 191 overlay->planes = 1; | |
| 192 break; | |
| 193 } | |
| 194 | |
| 195 /* We're all done.. */ | |
| 196 return(overlay); | |
| 197 } | |
| 198 | |
| 199 int DX5_LockYUVOverlay(_THIS, SDL_Overlay *overlay) | |
| 200 { | |
| 201 HRESULT result; | |
| 202 LPDIRECTDRAWSURFACE3 surface; | |
| 203 DDSURFACEDESC ddsd; | |
| 204 | |
| 205 surface = overlay->hwdata->surface; | |
| 206 memset(&ddsd, 0, sizeof(ddsd)); | |
| 207 ddsd.dwSize = sizeof(ddsd); | |
| 208 result = IDirectDrawSurface3_Lock(surface, NULL, | |
| 209 &ddsd, DDLOCK_NOSYSLOCK, NULL); | |
| 210 if ( result == DDERR_SURFACELOST ) { | |
| 211 result = IDirectDrawSurface3_Restore(surface); | |
| 212 result = IDirectDrawSurface3_Lock(surface, NULL, &ddsd, | |
| 213 (DDLOCK_NOSYSLOCK|DDLOCK_WAIT), NULL); | |
| 214 } | |
| 215 if ( result != DD_OK ) { | |
| 216 SetDDerror("DirectDrawSurface3::Lock", result); | |
| 217 return(-1); | |
| 218 } | |
| 219 | |
| 220 /* Find the pitch and offset values for the overlay */ | |
| 221 #if defined(NONAMELESSUNION) | |
| 222 overlay->pitches[0] = (Uint16)ddsd.u1.lPitch; | |
| 223 #else | |
| 224 overlay->pitches[0] = (Uint16)ddsd.lPitch; | |
| 225 #endif | |
| 226 overlay->pixels[0] = (Uint8 *)ddsd.lpSurface; | |
| 227 switch (overlay->format) { | |
| 228 case SDL_YV12_OVERLAY: | |
| 229 case SDL_IYUV_OVERLAY: | |
| 230 /* Add the two extra planes */ | |
| 231 overlay->pitches[1] = overlay->pitches[0] / 2; | |
| 232 overlay->pitches[2] = overlay->pitches[0] / 2; | |
| 233 overlay->pixels[1] = overlay->pixels[0] + | |
| 234 overlay->pitches[0] * overlay->h; | |
| 235 overlay->pixels[2] = overlay->pixels[1] + | |
| 236 overlay->pitches[1] * overlay->h / 2; | |
| 237 break; | |
| 238 default: | |
| 239 /* Only one plane, no worries */ | |
| 240 break; | |
| 241 } | |
| 242 return(0); | |
| 243 } | |
| 244 | |
| 245 void DX5_UnlockYUVOverlay(_THIS, SDL_Overlay *overlay) | |
| 246 { | |
| 247 LPDIRECTDRAWSURFACE3 surface; | |
| 248 | |
| 249 surface = overlay->hwdata->surface; | |
| 250 IDirectDrawSurface3_Unlock(surface, NULL); | |
| 251 } | |
| 252 | |
| 253 int DX5_DisplayYUVOverlay(_THIS, SDL_Overlay *overlay, SDL_Rect *dstrect) | |
| 254 { | |
| 255 HRESULT result; | |
| 256 LPDIRECTDRAWSURFACE3 surface; | |
| 257 RECT src, dst; | |
| 258 | |
| 259 surface = overlay->hwdata->surface; | |
| 260 src.top = 0; | |
| 261 src.bottom = overlay->h; | |
| 262 src.left = 0; | |
| 263 src.right = overlay->w; | |
| 264 dst.top = SDL_bounds.top+dstrect->y; | |
| 265 dst.left = SDL_bounds.left+dstrect->x; | |
| 266 dst.bottom = dst.top+dstrect->h; | |
| 267 dst.right = dst.left+dstrect->w; | |
| 268 #ifdef USE_DIRECTX_OVERLAY | |
| 269 result = IDirectDrawSurface3_UpdateOverlay(surface, &src, | |
| 270 SDL_primary, &dst, DDOVER_SHOW, NULL); | |
| 271 if ( result != DD_OK ) { | |
| 272 SetDDerror("DirectDrawSurface3::UpdateOverlay", result); | |
| 273 return(-1); | |
| 274 } | |
| 275 #else | |
| 276 result = IDirectDrawSurface3_Blt(SDL_primary, &dst, surface, &src, | |
| 277 DDBLT_WAIT, NULL); | |
| 278 if ( result != DD_OK ) { | |
| 279 SetDDerror("DirectDrawSurface3::Blt", result); | |
| 280 return(-1); | |
| 281 } | |
| 282 #endif | |
| 283 return(0); | |
| 284 } | |
| 285 | |
| 286 void DX5_FreeYUVOverlay(_THIS, SDL_Overlay *overlay) | |
| 287 { | |
| 288 struct private_yuvhwdata *hwdata; | |
| 289 | |
| 290 hwdata = overlay->hwdata; | |
| 291 if ( hwdata ) { | |
| 292 if ( hwdata->surface ) { | |
| 293 IDirectDrawSurface_Release(hwdata->surface); | |
| 294 } | |
| 295 free(hwdata); | |
| 296 } | |
| 297 } | |
| 298 |