dlls/avifil32/getframe.c

   1 /*
   2  * Copyright 2002-2003 Michael Günnewig
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  17  */
  18
  19 #include <stdarg.h>
  20
  21 #include "windef.h"
  22 #include "winbase.h"
  23 #include "wingdi.h"
  24 #include "winuser.h"
  25 #include "vfw.h"
  26
  27 #include "avifile_private.h"
  28
  29 #include "wine/debug.h"
  30
  31 WINE_DEFAULT_DEBUG_CHANNEL(avifile);
  32
  33 #ifndef DIBPTR
  34 #define DIBPTR(lp)      ((LPBYTE)(lp) + (lp)->biSize + \
  35                          (lp)->biClrUsed * sizeof(RGBQUAD))
  36 #endif
  37
  38 /***********************************************************************/
  39
  40 typedef struct _IGetFrameImpl {
  41   /* IUnknown stuff */
  42   IGetFrame          IGetFrame_iface;
  43   LONG               ref;
  44
  45   /* IGetFrame stuff */
  46   BOOL               bFixedStream;
  47   PAVISTREAM         pStream;
  48
  49   LPVOID             lpInBuffer;
  50   LONG               cbInBuffer;
  51   LPBITMAPINFOHEADER lpInFormat;
  52   LONG               cbInFormat;
  53
  54   LONG               lCurrentFrame;
  55   LPBITMAPINFOHEADER lpOutFormat;
  56   LPVOID             lpOutBuffer;
  57
  58   HIC                hic;
  59   BOOL               bResize;
  60   DWORD              x;
  61   DWORD              y;
  62   DWORD              dx;
  63   DWORD              dy;
  64
  65   BOOL               bFormatChanges;
  66   DWORD              dwFormatChangeCount;
  67   DWORD              dwEditCount;
  68 } IGetFrameImpl;
  69
  70 /***********************************************************************/
  71
  72 static inline IGetFrameImpl *impl_from_IGetFrame(IGetFrame *iface)
  73 {
  74   return CONTAINING_RECORD(iface, IGetFrameImpl, IGetFrame_iface);
  75 }
  76
  77 static void AVIFILE_CloseCompressor(IGetFrameImpl *This)
  78 {
  79   if (This->lpInFormat != This->lpOutFormat) {
  80     HeapFree(GetProcessHeap(), 0, This->lpOutFormat);
  81     This->lpOutFormat = NULL;
  82   }
  83   HeapFree(GetProcessHeap(), 0, This->lpInFormat);
  84   This->lpInFormat = NULL;
  85   if (This->hic != NULL) {
  86     if (This->bResize)
  87       ICDecompressExEnd(This->hic);
  88     else
  89       ICDecompressEnd(This->hic);
  90     ICClose(This->hic);
  91     This->hic = NULL;
  92   }
  93 }
  94
  95 static HRESULT WINAPI IGetFrame_fnQueryInterface(IGetFrame *iface,
  96                                                  REFIID refiid, LPVOID *obj)
  97 {
  98   IGetFrameImpl *This = impl_from_IGetFrame(iface);
  99
 100   TRACE("(%p,%s,%p)\n", This, debugstr_guid(refiid), obj);
 101
 102   if (IsEqualGUID(&IID_IUnknown, refiid) ||
 103       IsEqualGUID(&IID_IGetFrame, refiid)) {
 104     *obj = iface;
 105     IGetFrame_AddRef(iface);
 106     return S_OK;
 107   }
 108
 109   return OLE_E_ENUM_NOMORE;
 110 }
 111
 112 static ULONG   WINAPI IGetFrame_fnAddRef(IGetFrame *iface)
 113 {
 114   IGetFrameImpl *This = impl_from_IGetFrame(iface);
 115   ULONG ref = InterlockedIncrement(&This->ref);
 116
 117   TRACE("(%p)\n", iface);
 118
 119   return ref;
 120 }
 121
 122 static ULONG   WINAPI IGetFrame_fnRelease(IGetFrame *iface)
 123 {
 124   IGetFrameImpl *This = impl_from_IGetFrame(iface);
 125   ULONG ref = InterlockedDecrement(&This->ref);
 126
 127   TRACE("(%p)\n", iface);
 128
 129   if (!ref) {
 130     AVIFILE_CloseCompressor(This);
 131     if (This->pStream != NULL) {
 132       IAVIStream_Release(This->pStream);
 133       This->pStream = NULL;
 134     }
 135
 136     HeapFree(GetProcessHeap(), 0, iface);
 137   }
 138
 139   return ref;
 140 }
 141
 142 static LPVOID  WINAPI IGetFrame_fnGetFrame(IGetFrame *iface, LONG lPos)
 143 {
 144   IGetFrameImpl *This = impl_from_IGetFrame(iface);
 145
 146   LONG readBytes;
 147   LONG readSamples;
 148
 149   TRACE("(%p,%d)\n", iface, lPos);
 150
 151   /* We don't want negative start values! -- marks invalid buffer content */
 152   if (lPos < 0)
 153     return NULL;
 154
 155   /* check state */
 156   if (This->pStream == NULL)
 157     return NULL;
 158   if (This->lpInFormat == NULL)
 159     return NULL;
 160
 161   /* Could stream have changed? */
 162   if (! This->bFixedStream) {
 163     AVISTREAMINFOW sInfo;
 164
 165     IAVIStream_Info(This->pStream, &sInfo, sizeof(sInfo));
 166
 167     if (sInfo.dwEditCount != This->dwEditCount) {
 168       This->dwEditCount   = sInfo.dwEditCount;
 169       This->lCurrentFrame = -1;
 170     }
 171
 172     if (sInfo.dwFormatChangeCount != This->dwFormatChangeCount) {
 173       /* stream has changed */
 174       if (This->lpOutFormat != NULL) {
 175         BITMAPINFOHEADER bi;
 176
 177         bi = *This->lpOutFormat;
 178         AVIFILE_CloseCompressor(This);
 179
 180         if (FAILED(IGetFrame_SetFormat(iface, &bi, NULL, 0, 0, -1, -1))) {
 181           if (FAILED(IGetFrame_SetFormat(iface, NULL, NULL, 0, 0, -1, -1)))
 182             return NULL;
 183         }
 184       } else if (FAILED(IGetFrame_SetFormat(iface, NULL, NULL, 0, 0, -1, -1)))
 185         return NULL;
 186     }
 187   }
 188
 189   if (lPos != This->lCurrentFrame) {
 190     LONG lNext = IAVIStream_FindSample(This->pStream,lPos,FIND_KEY|FIND_PREV);
 191
 192     if (lNext == -1)
 193       return NULL; /* frame doesn't exist */
 194     if (lNext <= This->lCurrentFrame && This->lCurrentFrame < lPos)
 195       lNext = This->lCurrentFrame + 1;
 196
 197     for (; lNext <= lPos; lNext++) {
 198       /* new format for this frame? */
 199       if (This->bFormatChanges) {
 200         IAVIStream_ReadFormat(This->pStream, lNext,
 201                               This->lpInFormat, &This->cbInFormat);
 202         if (This->lpOutFormat != NULL) {
 203           if (This->lpOutFormat->biBitCount <= 8)
 204             ICDecompressGetPalette(This->hic, This->lpInFormat,
 205                                    This->lpOutFormat);
 206         }
 207       }
 208
 209       /* read input frame */
 210       while (FAILED(AVIStreamRead(This->pStream, lNext, 1, This->lpInBuffer,
 211                                   This->cbInBuffer, &readBytes, &readSamples))) {
 212         /* not enough memory for input buffer? */
 213         readBytes = 0;
 214         if (FAILED(AVIStreamSampleSize(This->pStream, lNext, &readBytes)))
 215           return NULL; /* bad thing, but bad things will happen */
 216         if (readBytes <= 0) {
 217           ERR(": IAVIStream::Read doesn't return needed bytes!\n");
 218           return NULL;
 219         }
 220
 221         /* IAVIStream::Read failed because of other reasons not buffersize? */
 222         if (This->cbInBuffer >= readBytes)
 223           break;
 224         This->cbInBuffer = This->cbInFormat + readBytes;
 225         This->lpInFormat = HeapReAlloc(GetProcessHeap(), 0, This->lpInFormat, This->cbInBuffer);
 226         if (This->lpInFormat == NULL)
 227           return NULL; /* out of memory */
 228         This->lpInBuffer = (BYTE*)This->lpInFormat + This->cbInFormat;
 229       }
 230
 231       if (readSamples != 1) {
 232         ERR(": no frames read\n");
 233         return NULL;
 234       }
 235       if (readBytes != 0) {
 236         This->lpInFormat->biSizeImage = readBytes;
 237
 238         /* nothing to decompress? */
 239         if (This->hic == NULL) {
 240           This->lCurrentFrame = lPos;
 241           return This->lpInFormat;
 242         }
 243
 244         if (This->bResize) {
 245           ICDecompressEx(This->hic,0,This->lpInFormat,This->lpInBuffer,0,0,
 246                          This->lpInFormat->biWidth,This->lpInFormat->biHeight,
 247                          This->lpOutFormat,This->lpOutBuffer,This->x,This->y,
 248                          This->dx,This->dy);
 249         } else {
 250           ICDecompress(This->hic, 0, This->lpInFormat, This->lpInBuffer,
 251                        This->lpOutFormat, This->lpOutBuffer);
 252         }
 253       }
 254     } /* for (lNext < lPos) */
 255   } /* if (This->lCurrentFrame != lPos) */
 256
 257   return (This->hic == NULL ? This->lpInFormat : This->lpOutFormat);
 258 }
 259
 260 static HRESULT WINAPI IGetFrame_fnBegin(IGetFrame *iface, LONG lStart,
 261                                         LONG lEnd, LONG lRate)
 262 {
 263   IGetFrameImpl *This = impl_from_IGetFrame(iface);
 264
 265   TRACE("(%p,%d,%d,%d)\n", iface, lStart, lEnd, lRate);
 266
 267   This->bFixedStream = TRUE;
 268
 269   return (IGetFrame_GetFrame(iface, lStart) ? AVIERR_OK : AVIERR_ERROR);
 270 }
 271
 272 static HRESULT WINAPI IGetFrame_fnEnd(IGetFrame *iface)
 273 {
 274   IGetFrameImpl *This = impl_from_IGetFrame(iface);
 275
 276   TRACE("(%p)\n", iface);
 277
 278   This->bFixedStream = FALSE;
 279
 280   return AVIERR_OK;
 281 }
 282
 283 static HRESULT WINAPI IGetFrame_fnSetFormat(IGetFrame *iface,
 284                                             LPBITMAPINFOHEADER lpbiWanted,
 285                                             LPVOID lpBits, INT x, INT y,
 286                                             INT dx, INT dy)
 287 {
 288   IGetFrameImpl *This = impl_from_IGetFrame(iface);
 289
 290   AVISTREAMINFOW     sInfo;
 291   LPBITMAPINFOHEADER lpbi         = lpbiWanted;
 292   BOOL               bBestDisplay = FALSE;
 293
 294   TRACE("(%p,%p,%p,%d,%d,%d,%d)\n", iface, lpbiWanted, lpBits,
 295         x, y, dx, dy);
 296
 297   if (This->pStream == NULL)
 298     return AVIERR_ERROR;
 299
 300   if (lpbiWanted == (LPBITMAPINFOHEADER)AVIGETFRAMEF_BESTDISPLAYFMT) {
 301     lpbi = NULL;
 302     bBestDisplay = TRUE;
 303   }
 304
 305   IAVIStream_Info(This->pStream, &sInfo, sizeof(sInfo));
 306   if (sInfo.fccType != streamtypeVIDEO)
 307     return AVIERR_UNSUPPORTED;
 308
 309   This->bFormatChanges = (sInfo.dwFlags & AVISTREAMINFO_FORMATCHANGES) != 0;
 310   This->dwFormatChangeCount = sInfo.dwFormatChangeCount;
 311   This->dwEditCount         = sInfo.dwEditCount;
 312   This->lCurrentFrame       = -1;
 313
 314   /* get input format from stream */
 315   if (This->lpInFormat == NULL) {
 316     HRESULT hr;
 317
 318     This->cbInBuffer = (LONG)sInfo.dwSuggestedBufferSize;
 319     if (This->cbInBuffer == 0)
 320       This->cbInBuffer = 1024;
 321
 322     IAVIStream_ReadFormat(This->pStream, sInfo.dwStart,
 323                           NULL, &This->cbInFormat);
 324
 325     This->lpInFormat = HeapAlloc(GetProcessHeap(), 0, This->cbInFormat + This->cbInBuffer);
 326     if (This->lpInFormat == NULL) {
 327       AVIFILE_CloseCompressor(This);
 328       return AVIERR_MEMORY;
 329     }
 330
 331     hr = IAVIStream_ReadFormat(This->pStream, sInfo.dwStart, This->lpInFormat, &This->cbInFormat);
 332     if (FAILED(hr)) {
 333       AVIFILE_CloseCompressor(This);
 334       return hr;
 335     }
 336
 337     This->lpInBuffer = ((LPBYTE)This->lpInFormat) + This->cbInFormat;
 338   }
 339
 340   /* check input format */
 341   if (This->lpInFormat->biClrUsed == 0 && This->lpInFormat->biBitCount <= 8)
 342     This->lpInFormat->biClrUsed = 1u << This->lpInFormat->biBitCount;
 343   if (This->lpInFormat->biSizeImage == 0 &&
 344       This->lpInFormat->biCompression == BI_RGB) {
 345     This->lpInFormat->biSizeImage =
 346       DIBWIDTHBYTES(*This->lpInFormat) * This->lpInFormat->biHeight;
 347   }
 348
 349   /* only to pass through? */
 350   if (This->lpInFormat->biCompression == BI_RGB && lpBits == NULL) {
 351     if (lpbi == NULL ||
 352         (lpbi->biCompression == BI_RGB &&
 353          lpbi->biWidth == This->lpInFormat->biWidth &&
 354          lpbi->biHeight == This->lpInFormat->biHeight &&
 355          lpbi->biBitCount == This->lpInFormat->biBitCount)) {
 356       This->lpOutFormat = This->lpInFormat;
 357       This->lpOutBuffer = DIBPTR(This->lpInFormat);
 358       return AVIERR_OK;
 359     }
 360   }
 361
 362   /* need memory for output format? */
 363   if (This->lpOutFormat == NULL) {
 364     This->lpOutFormat =
 365       HeapAlloc(GetProcessHeap(), 0, sizeof(BITMAPINFOHEADER) + 256 * sizeof(RGBQUAD));
 366     if (This->lpOutFormat == NULL) {
 367       AVIFILE_CloseCompressor(This);
 368       return AVIERR_MEMORY;
 369     }
 370   }
 371
 372   /* need handle to video compressor */
 373   if (This->hic == NULL) {
 374     FOURCC fccHandler;
 375
 376     if (This->lpInFormat->biCompression == BI_RGB)
 377       fccHandler = comptypeDIB;
 378     else if (This->lpInFormat->biCompression == BI_RLE8)
 379       fccHandler = mmioFOURCC('R','L','E',' ');
 380     else
 381       fccHandler = sInfo.fccHandler;
 382
 383     if (lpbi != NULL) {
 384       if (lpbi->biWidth == 0)
 385         lpbi->biWidth = This->lpInFormat->biWidth;
 386       if (lpbi->biHeight == 0)
 387         lpbi->biHeight = This->lpInFormat->biHeight;
 388     }
 389
 390     This->hic = ICLocate(ICTYPE_VIDEO, fccHandler, This->lpInFormat, lpbi, ICMODE_DECOMPRESS);
 391     if (This->hic == NULL) {
 392       AVIFILE_CloseCompressor(This);
 393       return AVIERR_NOCOMPRESSOR;
 394     }
 395   }
 396
 397   /* output format given? */
 398   if (lpbi != NULL) {
 399     /* check the given output format ... */
 400     if (lpbi->biClrUsed == 0 && lpbi->biBitCount <= 8)
 401       lpbi->biClrUsed = 1u << lpbi->biBitCount;
 402
 403     /* ... and remember it */
 404     memcpy(This->lpOutFormat, lpbi,
 405            lpbi->biSize + lpbi->biClrUsed * sizeof(RGBQUAD));
 406     if (lpbi->biBitCount <= 8)
 407       ICDecompressGetPalette(This->hic, This->lpInFormat, This->lpOutFormat);
 408   } else {
 409     if (bBestDisplay) {
 410       ICGetDisplayFormat(This->hic, This->lpInFormat,
 411                          This->lpOutFormat, 0, dx, dy);
 412     } else if (ICDecompressGetFormat(This->hic, This->lpInFormat,
 413                                      This->lpOutFormat) < 0) {
 414       AVIFILE_CloseCompressor(This);
 415       return AVIERR_NOCOMPRESSOR;
 416     }
 417   }
 418
 419   /* check output format */
 420   if (This->lpOutFormat->biClrUsed == 0 &&
 421       This->lpOutFormat->biBitCount <= 8)
 422     This->lpOutFormat->biClrUsed = 1u << This->lpOutFormat->biBitCount;
 423   if (This->lpOutFormat->biSizeImage == 0 &&
 424       This->lpOutFormat->biCompression == BI_RGB) {
 425     This->lpOutFormat->biSizeImage =
 426       DIBWIDTHBYTES(*This->lpOutFormat) * This->lpOutFormat->biHeight;
 427   }
 428
 429   if (lpBits == NULL) {
 430     DWORD size = This->lpOutFormat->biClrUsed * sizeof(RGBQUAD);
 431
 432     size += This->lpOutFormat->biSize + This->lpOutFormat->biSizeImage;
 433     This->lpOutFormat = HeapReAlloc(GetProcessHeap(), 0, This->lpOutFormat, size);
 434     if (This->lpOutFormat == NULL) {
 435       AVIFILE_CloseCompressor(This);
 436       return AVIERR_MEMORY;
 437     }
 438     This->lpOutBuffer = DIBPTR(This->lpOutFormat);
 439   } else
 440     This->lpOutBuffer = lpBits;
 441
 442   /* for user size was irrelevant */
 443   if (dx == -1)
 444     dx = This->lpOutFormat->biWidth;
 445   if (dy == -1)
 446     dy = This->lpOutFormat->biHeight;
 447
 448   /* need to resize? */
 449   if (x != 0 || y != 0) {
 450     if (dy == This->lpOutFormat->biHeight &&
 451         dx == This->lpOutFormat->biWidth)
 452       This->bResize = FALSE;
 453     else
 454       This->bResize = TRUE;
 455   }
 456
 457   if (This->bResize) {
 458     This->x  = x;
 459     This->y  = y;
 460     This->dx = dx;
 461     This->dy = dy;
 462
 463     if (ICDecompressExBegin(This->hic,0,This->lpInFormat,This->lpInBuffer,0,
 464                             0,This->lpInFormat->biWidth,
 465                             This->lpInFormat->biHeight,This->lpOutFormat,
 466                             This->lpOutBuffer, x, y, dx, dy) == ICERR_OK)
 467       return AVIERR_OK;
 468   } else if (ICDecompressBegin(This->hic, This->lpInFormat,
 469                                This->lpOutFormat) == ICERR_OK)
 470     return AVIERR_OK;
 471
 472   AVIFILE_CloseCompressor(This);
 473
 474   return AVIERR_COMPRESSOR;
 475 }
 476
 477 static const struct IGetFrameVtbl igetframeVtbl = {
 478   IGetFrame_fnQueryInterface,
 479   IGetFrame_fnAddRef,
 480   IGetFrame_fnRelease,
 481   IGetFrame_fnGetFrame,
 482   IGetFrame_fnBegin,
 483   IGetFrame_fnEnd,
 484   IGetFrame_fnSetFormat
 485 };
 486
 487 PGETFRAME AVIFILE_CreateGetFrame(PAVISTREAM pStream)
 488 {
 489   IGetFrameImpl *pg;
 490
 491   /* check parameter */
 492   if (pStream == NULL)
 493     return NULL;
 494
 495   pg = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IGetFrameImpl));
 496   if (pg != NULL) {
 497     pg->IGetFrame_iface.lpVtbl = &igetframeVtbl;
 498     pg->ref           = 1;
 499     pg->lCurrentFrame = -1;
 500     pg->pStream       = pStream;
 501     IAVIStream_AddRef(pStream);
 502   }
 503
 504   return &pg->IGetFrame_iface;
 505 }
 506
 507 /***********************************************************************/