| 1 | /* |
| 2 | SDL - Simple DirectMedia Layer |
| 3 | Copyright (C) 1997-2009 Sam Lantinga |
| 4 | |
| 5 | This library is free software; you can redistribute it and/or |
| 6 | modify it under the terms of the GNU Lesser General Public |
| 7 | License as published by the Free Software Foundation; either |
| 8 | version 2.1 of the License, or (at your option) any later version. |
| 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 |
| 13 | Lesser General Public License for more details. |
| 14 | |
| 15 | You should have received a copy of the GNU Lesser General Public |
| 16 | License along with this library; if not, write to the Free Software |
| 17 | Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| 18 | |
| 19 | Sam Lantinga |
| 20 | slouken@libsdl.org |
| 21 | */ |
| 22 | #include "SDL_config.h" |
| 23 | |
| 24 | /* This is the DirectDraw implementation of YUV video overlays */ |
| 25 | |
| 26 | #include "SDL_video.h" |
| 27 | #include "SDL_dx5yuv_c.h" |
| 28 | #include "../SDL_yuvfuncs.h" |
| 29 | |
| 30 | //#define USE_DIRECTX_OVERLAY |
| 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 */ |
| 58 | SDL_memset(&ddsd, 0, sizeof(ddsd)); |
| 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 */ |
| 87 | SDL_memset(&ddsd, 0, sizeof(ddsd)); |
| 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; |
| 135 | codes = SDL_malloc(numcodes*sizeof(*codes)); |
| 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 | } |
| 141 | SDL_free(codes); |
| 142 | } |
| 143 | } else { |
| 144 | fprintf(stderr, "No FOURCC codes supported\n"); |
| 145 | } |
| 146 | #endif |
| 147 | |
| 148 | /* Create the overlay structure */ |
| 149 | overlay = (SDL_Overlay *)SDL_malloc(sizeof *overlay); |
| 150 | if ( overlay == NULL ) { |
| 151 | SDL_OutOfMemory(); |
| 152 | return(NULL); |
| 153 | } |
| 154 | SDL_memset(overlay, 0, (sizeof *overlay)); |
| 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 */ |
| 165 | hwdata = (struct private_yuvhwdata *)SDL_malloc(sizeof *hwdata); |
| 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; |
| 186 | break; |
| 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; |
| 203 | SDL_memset(&ddsd, 0, sizeof(ddsd)); |
| 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 | |
| 250 | int DX5_DisplayYUVOverlay(_THIS, SDL_Overlay *overlay, SDL_Rect *src, SDL_Rect *dst) |
| 251 | { |
| 252 | HRESULT result; |
| 253 | LPDIRECTDRAWSURFACE3 surface; |
| 254 | RECT srcrect, dstrect; |
| 255 | |
| 256 | surface = overlay->hwdata->surface; |
| 257 | srcrect.top = src->y; |
| 258 | srcrect.bottom = srcrect.top+src->h; |
| 259 | srcrect.left = src->x; |
| 260 | srcrect.right = srcrect.left+src->w; |
| 261 | dstrect.top = SDL_bounds.top+dst->y; |
| 262 | dstrect.left = SDL_bounds.left+dst->x; |
| 263 | dstrect.bottom = dstrect.top+dst->h; |
| 264 | dstrect.right = dstrect.left+dst->w; |
| 265 | #ifdef USE_DIRECTX_OVERLAY |
| 266 | result = IDirectDrawSurface3_UpdateOverlay(surface, &srcrect, |
| 267 | SDL_primary, &dstrect, DDOVER_SHOW, NULL); |
| 268 | if ( result != DD_OK ) { |
| 269 | SetDDerror("DirectDrawSurface3::UpdateOverlay", result); |
| 270 | return(-1); |
| 271 | } |
| 272 | #else |
| 273 | result = IDirectDrawSurface3_Blt(SDL_primary, &dstrect, surface, &srcrect, |
| 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 | } |
| 292 | SDL_free(hwdata); |
| 293 | overlay->hwdata = NULL; |
| 294 | } |
| 295 | } |
| 296 | |