src/video/windx5/SDL_dx5yuv.c

   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