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 static HRESULT WINAPI IGetFrame_fnQueryInterface(IGetFrame *iface,
  41                                                  REFIID refiid, LPVOID *obj);
  42 static ULONG   WINAPI IGetFrame_fnAddRef(IGetFrame *iface);
  43 static ULONG   WINAPI IGetFrame_fnRelease(IGetFrame *iface);
  44 static LPVOID  WINAPI IGetFrame_fnGetFrame(IGetFrame *iface, LONG lPos);
  45 static HRESULT WINAPI IGetFrame_fnBegin(IGetFrame *iface, LONG lStart,
  46                                         LONG lEnd, LONG lRate);
  47 static HRESULT WINAPI IGetFrame_fnEnd(IGetFrame *iface);
  48 static HRESULT WINAPI IGetFrame_fnSetFormat(IGetFrame *iface,
  49                                             LPBITMAPINFOHEADER lpbi,
  50                                             LPVOID lpBits, INT x, INT y,
  51                                             INT dx, INT dy);
  52
  53 static const struct IGetFrameVtbl igetframeVtbl = {
  54   IGetFrame_fnQueryInterface,
  55   IGetFrame_fnAddRef,
  56   IGetFrame_fnRelease,
  57   IGetFrame_fnGetFrame,
  58   IGetFrame_fnBegin,
  59   IGetFrame_fnEnd,
  60   IGetFrame_fnSetFormat
  61 };
  62
  63 typedef struct _IGetFrameImpl {
  64   /* IUnknown stuff */
  65   const IGetFrameVtbl *lpVtbl;
  66   LONG               ref;
  67
  68   /* IGetFrame stuff */
  69   BOOL               bFixedStream;
  70   PAVISTREAM         pStream;
  71
  72   LPVOID             lpInBuffer;
  73   LONG               cbInBuffer;
  74   LPBITMAPINFOHEADER lpInFormat;
  75   LONG               cbInFormat;
  76
  77   LONG               lCurrentFrame;
  78   LPBITMAPINFOHEADER lpOutFormat;
  79   LPVOID             lpOutBuffer;
  80
  81   HIC                hic;
  82   BOOL               bResize;
  83   DWORD              x;
  84   DWORD              y;
  85   DWORD              dx;
  86   DWORD              dy;
  87
  88   BOOL               bFormatChanges;
  89   DWORD              dwFormatChangeCount;
  90   DWORD              dwEditCount;
  91 } IGetFrameImpl;
  92
  93 /***********************************************************************/
  94
  95 static void AVIFILE_CloseCompressor(IGetFrameImpl *This)
  96 {
  97   if (This->lpInFormat != This->lpOutFormat) {
  98     HeapFree(GetProcessHeap(), 0, This->lpOutFormat);
  99     This->lpOutFormat = NULL;
 100   }
 101   HeapFree(GetProcessHeap(), 0, This->lpInFormat);
 102   This->lpInFormat = NULL;
 103   if (This->hic != NULL) {
 104     if (This->bResize)
 105       ICDecompressExEnd(This->hic);
 106     else
 107       ICDecompressEnd(This->hic);
 108     ICClose(This->hic);
 109     This->hic = NULL;
 110   }
 111 }
 112
 113 PGETFRAME AVIFILE_CreateGetFrame(PAVISTREAM pStream)
 114 {
 115   IGetFrameImpl *pg;
 116
 117   /* check parameter */
 118   if (pStream == NULL)
 119     return NULL;
 120
 121   pg = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IGetFrameImpl));
 122   if (pg != NULL) {
 123     pg->lpVtbl        = &igetframeVtbl;
 124     pg->ref           = 1;
 125     pg->lCurrentFrame = -1;
 126     pg->pStream       = pStream;
 127     IAVIStream_AddRef(pStream);
 128   }
 129
 130   return (PGETFRAME)pg;
 131 }
 132
 133 static HRESULT WINAPI IGetFrame_fnQueryInterface(IGetFrame *iface,
 134                                                  REFIID refiid, LPVOID *obj)
 135 {
 136   IGetFrameImpl *This = (IGetFrameImpl *)iface;
 137
 138   TRACE("(%p,%s,%p)\n", This, debugstr_guid(refiid), obj);
 139
 140   if (IsEqualGUID(&IID_IUnknown, refiid) ||
 141       IsEqualGUID(&IID_IGetFrame, refiid)) {
 142     *obj = iface;
 143     return S_OK;
 144   }
 145
 146   return OLE_E_ENUM_NOMORE;
 147 }
 148
 149 static ULONG   WINAPI IGetFrame_fnAddRef(IGetFrame *iface)
 150 {
 151   IGetFrameImpl *This = (IGetFrameImpl *)iface;
 152   ULONG ref = InterlockedIncrement(&This->ref);
 153
 154   TRACE("(%p)\n", iface);
 155
 156   return ref;
 157 }
 158
 159 static ULONG   WINAPI IGetFrame_fnRelease(IGetFrame *iface)
 160 {
 161   IGetFrameImpl *This = (IGetFrameImpl *)iface;
 162   ULONG ref = InterlockedDecrement(&This->ref);
 163
 164   TRACE("(%p)\n", iface);
 165
 166   if (!ref) {
 167     AVIFILE_CloseCompressor(This);
 168     if (This->pStream != NULL) {
 169       IAVIStream_Release(This->pStream);
 170       This->pStream = NULL;
 171     }
 172
 173     HeapFree(GetProcessHeap(), 0, iface);
 174     return 0;
 175   }
 176
 177   return ref;
 178 }
 179
 180 static LPVOID  WINAPI IGetFrame_fnGetFrame(IGetFrame *iface, LONG lPos)
 181 {
 182   IGetFrameImpl *This = (IGetFrameImpl *)iface;
 183
 184   LONG readBytes;
 185   LONG readSamples;
 186
 187   TRACE("(%p,%d)\n", iface, lPos);
 188
 189   /* We don't want negative start values! -- marks invalid buffer content */
 190   if (lPos < 0)
 191     return NULL;
 192
 193   /* check state */
 194   if (This->pStream == NULL)
 195     return NULL;
 196   if (This->lpInFormat == NULL)
 197     return NULL;
 198
 199   /* Could stream have changed? */
 200   if (! This->bFixedStream) {
 201     AVISTREAMINFOW sInfo;
 202
 203     IAVIStream_Info(This->pStream, &sInfo, sizeof(sInfo));
 204
 205     if (sInfo.dwEditCount != This->dwEditCount) {
 206       This->dwEditCount   = sInfo.dwEditCount;
 207       This->lCurrentFrame = -1;
 208     }
 209
 210     if (sInfo.dwFormatChangeCount != This->dwFormatChangeCount) {
 211       /* stream has changed */
 212       if (This->lpOutFormat != NULL) {
 213         BITMAPINFOHEADER bi;
 214
 215         bi = *This->lpOutFormat;
 216         AVIFILE_CloseCompressor(This);
 217
 218         if (FAILED(IGetFrame_SetFormat(iface, &bi, NULL, 0, 0, -1, -1))) {
 219           if (FAILED(IGetFrame_SetFormat(iface, NULL, NULL, 0, 0, -1, -1)))
 220             return NULL;
 221         }
 222       } else if (FAILED(IGetFrame_SetFormat(iface, NULL, NULL, 0, 0, -1, -1)))
 223         return NULL;
 224     }
 225   }
 226
 227   if (lPos != This->lCurrentFrame) {
 228     LONG lNext = IAVIStream_FindSample(This->pStream,lPos,FIND_KEY|FIND_PREV);
 229
 230     if (lNext == -1)
 231       return NULL; /* frame doesn't exist */
 232     if (lNext <= This->lCurrentFrame && This->lCurrentFrame < lPos)
 233       lNext = This->lCurrentFrame + 1;
 234
 235     for (; lNext <= lPos; lNext++) {
 236       /* new format for this frame? */
 237       if (This->bFormatChanges) {
 238         IAVIStream_ReadFormat(This->pStream, lNext,
 239                               This->lpInFormat, &This->cbInFormat);
 240         if (This->lpOutFormat != NULL) {
 241           if (This->lpOutFormat->biBitCount <= 8)
 242             ICDecompressGetPalette(This->hic, This->lpInFormat,
 243                                    This->lpOutFormat);
 244         }
 245       }
 246
 247       /* read input frame */
 248       while (FAILED(AVIStreamRead(This->pStream, lNext, 1, This->lpInBuffer,
 249                                   This->cbInBuffer, &readBytes, &readSamples))) {
 250         /* not enough memory for input buffer? */
 251         readBytes = 0;
 252         if (FAILED(AVIStreamSampleSize(This->pStream, lNext, &readBytes)))
 253           return NULL; /* bad thing, but bad things will happen */
 254         if (readBytes <= 0) {
 255           ERR(": IAVIStream::REad doesn't return needed bytes!\n");
 256           return NULL;
 257         }
 258
 259         /* IAVIStream::Read failed because of other reasons not buffersize? */
 260         if (This->cbInBuffer >= readBytes)
 261           break;
 262         This->cbInBuffer = This->cbInFormat + readBytes;
 263         This->lpInFormat = HeapReAlloc(GetProcessHeap(), 0, This->lpInFormat, This->cbInBuffer);
 264         if (This->lpInFormat == NULL)
 265           return NULL; /* out of memory */
 266         This->lpInBuffer = (BYTE*)This->lpInFormat + This->cbInFormat;
 267       }
 268
 269       if (readSamples != 1) {
 270         ERR(": no frames read\n");
 271         return NULL;
 272       }
 273       if (readBytes != 0) {
 274         This->lpInFormat->biSizeImage = readBytes;
 275
 276         /* nothing to decompress? */
 277         if (This->hic == NULL) {
 278           This->lCurrentFrame = lPos;
 279           return This->lpInFormat;
 280         }
 281
 282         if (This->bResize) {
 283           ICDecompressEx(This->hic,0,This->lpInFormat,This->lpInBuffer,0,0,
 284                          This->lpInFormat->biWidth,This->lpInFormat->biHeight,
 285                          This->lpOutFormat,This->lpOutBuffer,This->x,This->y,
 286                          This->dx,This->dy);
 287         } else {
 288           ICDecompress(This->hic, 0, This->lpInFormat, This->lpInBuffer,
 289                        This->lpOutFormat, This->lpOutBuffer);
 290         }
 291       }
 292     } /* for (lNext < lPos) */
 293   } /* if (This->lCurrentFrame != lPos) */
 294
 295   return (This->hic == NULL ? This->lpInFormat : This->lpOutFormat);
 296 }
 297
 298 static HRESULT WINAPI IGetFrame_fnBegin(IGetFrame *iface, LONG lStart,
 299                                         LONG lEnd, LONG lRate)
 300 {
 301   IGetFrameImpl *This = (IGetFrameImpl *)iface;
 302
 303   TRACE("(%p,%d,%d,%d)\n", iface, lStart, lEnd, lRate);
 304
 305   This->bFixedStream = TRUE;
 306
 307   return (IGetFrame_GetFrame(iface, lStart) ? AVIERR_OK : AVIERR_ERROR);
 308 }
 309
 310 static HRESULT WINAPI IGetFrame_fnEnd(IGetFrame *iface)
 311 {
 312   IGetFrameImpl *This = (IGetFrameImpl *)iface;
 313
 314   TRACE("(%p)\n", iface);
 315
 316   This->bFixedStream = FALSE;
 317
 318   return AVIERR_OK;
 319 }
 320
 321 static HRESULT WINAPI IGetFrame_fnSetFormat(IGetFrame *iface,
 322                                             LPBITMAPINFOHEADER lpbiWanted,
 323                                             LPVOID lpBits, INT x, INT y,
 324                                             INT dx, INT dy)
 325 {
 326   IGetFrameImpl *This = (IGetFrameImpl *)iface;
 327
 328   AVISTREAMINFOW     sInfo;
 329   LPBITMAPINFOHEADER lpbi         = lpbiWanted;
 330   BOOL               bBestDisplay = FALSE;
 331
 332   TRACE("(%p,%p,%p,%d,%d,%d,%d)\n", iface, lpbiWanted, lpBits,
 333         x, y, dx, dy);
 334
 335   if (This->pStream == NULL)
 336     return AVIERR_ERROR;
 337
 338   if (lpbiWanted == (LPBITMAPINFOHEADER)AVIGETFRAMEF_BESTDISPLAYFMT) {
 339     lpbi = NULL;
 340     bBestDisplay = TRUE;
 341   }
 342
 343   IAVIStream_Info(This->pStream, &sInfo, sizeof(sInfo));
 344   if (sInfo.fccType != streamtypeVIDEO)
 345     return AVIERR_UNSUPPORTED;
 346
 347   This->bFormatChanges =
 348     (sInfo.dwFlags & AVISTREAMINFO_FORMATCHANGES ? TRUE : FALSE );
 349   This->dwFormatChangeCount = sInfo.dwFormatChangeCount;
 350   This->dwEditCount         = sInfo.dwEditCount;
 351   This->lCurrentFrame       = -1;
 352
 353   /* get input format from stream */
 354   if (This->lpInFormat == NULL) {
 355     HRESULT hr;
 356
 357     This->cbInBuffer = (LONG)sInfo.dwSuggestedBufferSize;
 358     if (This->cbInBuffer == 0)
 359       This->cbInBuffer = 1024;
 360
 361     IAVIStream_ReadFormat(This->pStream, sInfo.dwStart,
 362                           NULL, &This->cbInFormat);
 363
 364     This->lpInFormat = HeapAlloc(GetProcessHeap(), 0, This->cbInFormat + This->cbInBuffer);
 365     if (This->lpInFormat == NULL) {
 366       AVIFILE_CloseCompressor(This);
 367       return AVIERR_MEMORY;
 368     }
 369
 370     hr = IAVIStream_ReadFormat(This->pStream, sInfo.dwStart, This->lpInFormat, &This->cbInFormat);
 371     if (FAILED(hr)) {
 372       AVIFILE_CloseCompressor(This);
 373       return hr;
 374     }
 375
 376     This->lpInBuffer = ((LPBYTE)This->lpInFormat) + This->cbInFormat;
 377   }
 378
 379   /* check input format */
 380   if (This->lpInFormat->biClrUsed == 0 && This->lpInFormat->biBitCount <= 8)
 381     This->lpInFormat->biClrUsed = 1u << This->lpInFormat->biBitCount;
 382   if (This->lpInFormat->biSizeImage == 0 &&
 383       This->lpInFormat->biCompression == BI_RGB) {
 384     This->lpInFormat->biSizeImage =
 385       DIBWIDTHBYTES(*This->lpInFormat) * This->lpInFormat->biHeight;
 386   }
 387
 388   /* only to pass through? */
 389   if (This->lpInFormat->biCompression == BI_RGB && lpBits == NULL) {
 390     if (lpbi == NULL ||
 391         (lpbi->biCompression == BI_RGB &&
 392          lpbi->biWidth == This->lpInFormat->biWidth &&
 393          lpbi->biHeight == This->lpInFormat->biHeight &&
 394          lpbi->biBitCount == This->lpInFormat->biBitCount)) {
 395       This->lpOutFormat = This->lpInFormat;
 396       This->lpOutBuffer = DIBPTR(This->lpInFormat);
 397       return AVIERR_OK;
 398     }
 399   }
 400
 401   /* need memory for output format? */
 402   if (This->lpOutFormat == NULL) {
 403     This->lpOutFormat =
 404       HeapAlloc(GetProcessHeap(), 0, sizeof(BITMAPINFOHEADER) + 256 * sizeof(RGBQUAD));
 405     if (This->lpOutFormat == NULL) {
 406       AVIFILE_CloseCompressor(This);
 407       return AVIERR_MEMORY;
 408     }
 409   }
 410
 411   /* need handle to video compressor */
 412   if (This->hic == NULL) {
 413     FOURCC fccHandler;
 414
 415     if (This->lpInFormat->biCompression == BI_RGB)
 416       fccHandler = comptypeDIB;
 417     else if (This->lpInFormat->biCompression == BI_RLE8)
 418       fccHandler = mmioFOURCC('R','L','E',' ');
 419     else
 420       fccHandler = sInfo.fccHandler;
 421
 422     if (lpbi != NULL) {
 423       if (lpbi->biWidth == 0)
 424         lpbi->biWidth = This->lpInFormat->biWidth;
 425       if (lpbi->biHeight == 0)
 426         lpbi->biHeight = This->lpInFormat->biHeight;
 427     }
 428
 429     This->hic = ICLocate(ICTYPE_VIDEO, fccHandler, This->lpInFormat, lpbi, ICMODE_DECOMPRESS);
 430     if (This->hic == NULL) {
 431       AVIFILE_CloseCompressor(This);
 432       return AVIERR_NOCOMPRESSOR;
 433     }
 434   }
 435
 436   /* output format given? */
 437   if (lpbi != NULL) {
 438     /* check the given output format ... */
 439     if (lpbi->biClrUsed == 0 && lpbi->biBitCount <= 8)
 440       lpbi->biClrUsed = 1u << lpbi->biBitCount;
 441
 442     /* ... and remember it */
 443     memcpy(This->lpOutFormat, lpbi,
 444            lpbi->biSize + lpbi->biClrUsed * sizeof(RGBQUAD));
 445     if (lpbi->biBitCount <= 8)
 446       ICDecompressGetPalette(This->hic, This->lpInFormat, This->lpOutFormat);
 447
 448     return AVIERR_OK;
 449   } else {
 450     if (bBestDisplay) {
 451       ICGetDisplayFormat(This->hic, This->lpInFormat,
 452                          This->lpOutFormat, 0, dx, dy);
 453     } else if (ICDecompressGetFormat(This->hic, This->lpInFormat,
 454                                      This->lpOutFormat) < 0) {
 455       AVIFILE_CloseCompressor(This);
 456       return AVIERR_NOCOMPRESSOR;
 457     }
 458
 459     /* check output format */
 460     if (This->lpOutFormat->biClrUsed == 0 &&
 461         This->lpOutFormat->biBitCount <= 8)
 462       This->lpOutFormat->biClrUsed = 1u << This->lpOutFormat->biBitCount;
 463     if (This->lpOutFormat->biSizeImage == 0 &&
 464         This->lpOutFormat->biCompression == BI_RGB) {
 465       This->lpOutFormat->biSizeImage =
 466         DIBWIDTHBYTES(*This->lpOutFormat) * This->lpOutFormat->biHeight;
 467     }
 468
 469     if (lpBits == NULL) {
 470       register DWORD size = This->lpOutFormat->biClrUsed * sizeof(RGBQUAD);
 471
 472       size += This->lpOutFormat->biSize + This->lpOutFormat->biSizeImage;
 473       This->lpOutFormat = HeapReAlloc(GetProcessHeap(), 0, This->lpOutFormat, size);
 474       if (This->lpOutFormat == NULL) {
 475         AVIFILE_CloseCompressor(This);
 476         return AVIERR_MEMORY;
 477       }
 478       This->lpOutBuffer = DIBPTR(This->lpOutFormat);
 479     } else
 480       This->lpOutBuffer = lpBits;
 481
 482     /* for user size was irrelevant */
 483     if (dx == -1)
 484       dx = This->lpOutFormat->biWidth;
 485     if (dy == -1)
 486       dy = This->lpOutFormat->biHeight;
 487
 488     /* need to resize? */
 489     if (x != 0 || y != 0) {
 490       if (dy == This->lpOutFormat->biHeight &&
 491           dx == This->lpOutFormat->biWidth)
 492         This->bResize = FALSE;
 493       else
 494         This->bResize = TRUE;
 495     }
 496
 497     if (This->bResize) {
 498       This->x  = x;
 499       This->y  = y;
 500       This->dx = dx;
 501       This->dy = dy;
 502
 503       if (ICDecompressExBegin(This->hic,0,This->lpInFormat,This->lpInBuffer,0,
 504                               0,This->lpInFormat->biWidth,
 505                               This->lpInFormat->biHeight,This->lpOutFormat,
 506                               This->lpOutBuffer, x, y, dx, dy) == ICERR_OK)
 507         return AVIERR_OK;
 508     } else if (ICDecompressBegin(This->hic, This->lpInFormat,
 509                                  This->lpOutFormat) == ICERR_OK)
 510       return AVIERR_OK;
 511
 512     AVIFILE_CloseCompressor(This);
 513
 514     return AVIERR_COMPRESSOR;
 515   }
 516 }
 517
 518 /***********************************************************************/