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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  17  */
  18
  19 #define COM_NO_WINDOWS_H
  20 #include <assert.h>
  21 #include <stdarg.h>
  22
  23 #include "windef.h"
  24 #include "winbase.h"
  25 #include "winnls.h"
  26 #include "wingdi.h"
  27 #include "winuser.h"
  28 #include "vfw.h"
  29
  30 #include "avifile_private.h"
  31
  32 #include "wine/debug.h"
  33
  34 WINE_DEFAULT_DEBUG_CHANNEL(avifile);
  35
  36 #ifndef DIBPTR
  37 #define DIBPTR(lp)      ((LPBYTE)(lp) + (lp)->biSize + \
  38                          (lp)->biClrUsed * sizeof(RGBQUAD))
  39 #endif
  40
  41 /***********************************************************************/
  42
  43 static HRESULT WINAPI IGetFrame_fnQueryInterface(IGetFrame *iface,
  44                                                  REFIID refiid, LPVOID *obj);
  45 static ULONG   WINAPI IGetFrame_fnAddRef(IGetFrame *iface);
  46 static ULONG   WINAPI IGetFrame_fnRelease(IGetFrame *iface);
  47 static LPVOID  WINAPI IGetFrame_fnGetFrame(IGetFrame *iface, LONG lPos);
  48 static HRESULT WINAPI IGetFrame_fnBegin(IGetFrame *iface, LONG lStart,
  49                                         LONG lEnd, LONG lRate);
  50 static HRESULT WINAPI IGetFrame_fnEnd(IGetFrame *iface);
  51 static HRESULT WINAPI IGetFrame_fnSetFormat(IGetFrame *iface,
  52                                             LPBITMAPINFOHEADER lpbi,
  53                                             LPVOID lpBits, INT x, INT y,
  54                                             INT dx, INT dy);
  55
  56 static const struct IGetFrameVtbl igetframeVtbl = {
  57   IGetFrame_fnQueryInterface,
  58   IGetFrame_fnAddRef,
  59   IGetFrame_fnRelease,
  60   IGetFrame_fnGetFrame,
  61   IGetFrame_fnBegin,
  62   IGetFrame_fnEnd,
  63   IGetFrame_fnSetFormat
  64 };
  65
  66 typedef struct _IGetFrameImpl {
  67   /* IUnknown stuff */
  68   const IGetFrameVtbl *lpVtbl;
  69   LONG               ref;
  70
  71   /* IGetFrame stuff */
  72   BOOL               bFixedStream;
  73   PAVISTREAM         pStream;
  74
  75   LPVOID             lpInBuffer;
  76   LONG               cbInBuffer;
  77   LPBITMAPINFOHEADER lpInFormat;
  78   LONG               cbInFormat;
  79
  80   LONG               lCurrentFrame;
  81   LPBITMAPINFOHEADER lpOutFormat;
  82   LPVOID             lpOutBuffer;
  83
  84   HIC                hic;
  85   BOOL               bResize;
  86   DWORD              x;
  87   DWORD              y;
  88   DWORD              dx;
  89   DWORD              dy;
  90
  91   BOOL               bFormatChanges;
  92   DWORD              dwFormatChangeCount;
  93   DWORD              dwEditCount;
  94 } IGetFrameImpl;
  95
  96 /***********************************************************************/
  97
  98 static void AVIFILE_CloseCompressor(IGetFrameImpl *This)
  99 {
 100   if (This->lpOutFormat != NULL && This->lpInFormat != This->lpOutFormat) {
 101     HeapFree(GetProcessHeap(), 0, This->lpOutFormat);
 102     This->lpOutFormat = NULL;
 103   }
 104   if (This->lpInFormat != NULL) {
 105     HeapFree(GetProcessHeap(), 0, This->lpInFormat);
 106     This->lpInFormat = NULL;
 107   }
 108   if (This->hic != NULL) {
 109     if (This->bResize)
 110       ICDecompressExEnd(This->hic);
 111     else
 112       ICDecompressEnd(This->hic);
 113     ICClose(This->hic);
 114     This->hic = NULL;
 115   }
 116 }
 117
 118 PGETFRAME AVIFILE_CreateGetFrame(PAVISTREAM pStream)
 119 {
 120   IGetFrameImpl *pg;
 121
 122   /* check parameter */
 123   if (pStream == NULL)
 124     return NULL;
 125
 126   pg = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IGetFrameImpl));
 127   if (pg != NULL) {
 128     pg->lpVtbl        = &igetframeVtbl;
 129     pg->ref           = 1;
 130     pg->lCurrentFrame = -1;
 131     pg->pStream       = pStream;
 132     IAVIStream_AddRef(pStream);
 133   }
 134
 135   return (PGETFRAME)pg;
 136 }
 137
 138 static HRESULT WINAPI IGetFrame_fnQueryInterface(IGetFrame *iface,
 139                                                  REFIID refiid, LPVOID *obj)
 140 {
 141   IGetFrameImpl *This = (IGetFrameImpl *)iface;
 142
 143   TRACE("(%p,%s,%p)\n", This, debugstr_guid(refiid), obj);
 144
 145   if (IsEqualGUID(&IID_IUnknown, refiid) ||
 146       IsEqualGUID(&IID_IGetFrame, refiid)) {
 147     *obj = iface;
 148     return S_OK;
 149   }
 150
 151   return OLE_E_ENUM_NOMORE;
 152 }
 153
 154 static ULONG   WINAPI IGetFrame_fnAddRef(IGetFrame *iface)
 155 {
 156   IGetFrameImpl *This = (IGetFrameImpl *)iface;
 157   ULONG ref = InterlockedIncrement(&This->ref);
 158
 159   TRACE("(%p)\n", iface);
 160
 161   return ref;
 162 }
 163
 164 static ULONG   WINAPI IGetFrame_fnRelease(IGetFrame *iface)
 165 {
 166   IGetFrameImpl *This = (IGetFrameImpl *)iface;
 167   ULONG ref = InterlockedDecrement(&This->ref);
 168
 169   TRACE("(%p)\n", iface);
 170
 171   if (!ref) {
 172     AVIFILE_CloseCompressor(This);
 173     if (This->pStream != NULL) {
 174       IAVIStream_Release(This->pStream);
 175       This->pStream = NULL;
 176     }
 177
 178     HeapFree(GetProcessHeap(), 0, iface);
 179     return 0;
 180   }
 181
 182   return ref;
 183 }
 184
 185 static LPVOID  WINAPI IGetFrame_fnGetFrame(IGetFrame *iface, LONG lPos)
 186 {
 187   IGetFrameImpl *This = (IGetFrameImpl *)iface;
 188
 189   LONG readBytes;
 190   LONG readSamples;
 191
 192   TRACE("(%p,%ld)\n", iface, lPos);
 193
 194   /* We don't want negative start values! -- marks invalid buffer content */
 195   if (lPos < 0)
 196     return NULL;
 197
 198   /* check state */
 199   if (This->pStream == NULL)
 200     return NULL;
 201   if (This->lpInFormat == NULL)
 202     return NULL;
 203
 204   /* Could stream have changed? */
 205   if (! This->bFixedStream) {
 206     AVISTREAMINFOW sInfo;
 207
 208     IAVIStream_Info(This->pStream, &sInfo, sizeof(sInfo));
 209
 210     if (sInfo.dwEditCount != This->dwEditCount) {
 211       This->dwEditCount   = sInfo.dwEditCount;
 212       This->lCurrentFrame = -1;
 213     }
 214
 215     if (sInfo.dwFormatChangeCount != This->dwFormatChangeCount) {
 216       /* stream has changed */
 217       if (This->lpOutFormat != NULL) {
 218         BITMAPINFOHEADER bi;
 219
 220         memcpy(&bi, This->lpOutFormat, sizeof(bi));
 221         AVIFILE_CloseCompressor(This);
 222
 223         if (FAILED(IGetFrame_SetFormat(iface, &bi, NULL, 0, 0, -1, -1))) {
 224           if (FAILED(IGetFrame_SetFormat(iface, NULL, NULL, 0, 0, -1, -1)))
 225             return NULL;
 226         }
 227       } else if (FAILED(IGetFrame_SetFormat(iface, NULL, NULL, 0, 0, -1, -1)))
 228         return NULL;
 229     }
 230   }
 231
 232   if (lPos != This->lCurrentFrame) {
 233     LONG lNext = IAVIStream_FindSample(This->pStream,lPos,FIND_KEY|FIND_PREV);
 234
 235     if (lNext == -1)
 236       return NULL; /* frame doesn't exist */
 237     if (lNext <= This->lCurrentFrame && This->lCurrentFrame < lPos)
 238       lNext = This->lCurrentFrame + 1;
 239
 240     for (; lNext <= lPos; lNext++) {
 241       /* new format for this frame? */
 242       if (This->bFormatChanges) {
 243         IAVIStream_ReadFormat(This->pStream, lNext,
 244                               This->lpInFormat, &This->cbInFormat);
 245         if (This->lpOutFormat != NULL) {
 246           if (This->lpOutFormat->biBitCount <= 8)
 247             ICDecompressGetPalette(This->hic, This->lpInFormat,
 248                                    This->lpOutFormat);
 249         }
 250       }
 251
 252       /* read input frame */
 253       while (FAILED(AVIStreamRead(This->pStream, lNext, 1, This->lpInBuffer,
 254                                   This->cbInBuffer, &readBytes, &readSamples))) {
 255         /* not enough memory for input buffer? */
 256         readBytes = 0;
 257         if (FAILED(AVIStreamSampleSize(This->pStream, lNext, &readBytes)))
 258           return NULL; /* bad thing, but bad things will happen */
 259         if (readBytes <= 0) {
 260           ERR(": IAVIStream::REad doesn't return needed bytes!\n");
 261           return NULL;
 262         }
 263
 264         /* IAVIStream::Read failed because of other reasons not buffersize? */
 265         if (This->cbInBuffer >= readBytes)
 266           break;
 267         This->cbInBuffer = This->cbInFormat + readBytes;
 268         This->lpInFormat = HeapReAlloc(GetProcessHeap(), 0, This->lpInFormat, This->cbInBuffer);
 269         if (This->lpInFormat == NULL)
 270           return NULL; /* out of memory */
 271         This->lpInBuffer = (BYTE*)This->lpInFormat + This->cbInFormat;
 272       }
 273
 274       if (readSamples != 1) {
 275         ERR(": no frames read\n");
 276         return NULL;
 277       }
 278       if (readBytes != 0) {
 279         This->lpInFormat->biSizeImage = readBytes;
 280
 281         /* nothing to decompress? */
 282         if (This->hic == NULL) {
 283           This->lCurrentFrame = lPos;
 284           return This->lpInFormat;
 285         }
 286
 287         if (This->bResize) {
 288           ICDecompressEx(This->hic,0,This->lpInFormat,This->lpInBuffer,0,0,
 289                          This->lpInFormat->biWidth,This->lpInFormat->biHeight,
 290                          This->lpOutFormat,This->lpOutBuffer,This->x,This->y,
 291                          This->dx,This->dy);
 292         } else {
 293           ICDecompress(This->hic, 0, This->lpInFormat, This->lpInBuffer,
 294                        This->lpOutFormat, This->lpOutBuffer);
 295         }
 296       }
 297     } /* for (lNext < lPos) */
 298   } /* if (This->lCurrentFrame != lPos) */
 299
 300   return (This->hic == NULL ? This->lpInFormat : This->lpOutFormat);
 301 }
 302
 303 static HRESULT WINAPI IGetFrame_fnBegin(IGetFrame *iface, LONG lStart,
 304                                         LONG lEnd, LONG lRate)
 305 {
 306   IGetFrameImpl *This = (IGetFrameImpl *)iface;
 307
 308   TRACE("(%p,%ld,%ld,%ld)\n", iface, lStart, lEnd, lRate);
 309
 310   This->bFixedStream = TRUE;
 311
 312   return (IGetFrame_GetFrame(iface, lStart) ? AVIERR_OK : AVIERR_ERROR);
 313 }
 314
 315 static HRESULT WINAPI IGetFrame_fnEnd(IGetFrame *iface)
 316 {
 317   IGetFrameImpl *This = (IGetFrameImpl *)iface;
 318
 319   TRACE("(%p)\n", iface);
 320
 321   This->bFixedStream = FALSE;
 322
 323   return AVIERR_OK;
 324 }
 325
 326 static HRESULT WINAPI IGetFrame_fnSetFormat(IGetFrame *iface,
 327                                             LPBITMAPINFOHEADER lpbiWanted,
 328                                             LPVOID lpBits, INT x, INT y,
 329                                             INT dx, INT dy)
 330 {
 331   IGetFrameImpl *This = (IGetFrameImpl *)iface;
 332
 333   AVISTREAMINFOW     sInfo;
 334   LPBITMAPINFOHEADER lpbi         = lpbiWanted;
 335   BOOL               bBestDisplay = FALSE;
 336
 337   TRACE("(%p,%p,%p,%d,%d,%d,%d)\n", iface, lpbiWanted, lpBits,
 338         x, y, dx, dy);
 339
 340   if (This->pStream == NULL)
 341     return AVIERR_ERROR;
 342
 343   if (lpbiWanted == (LPBITMAPINFOHEADER)AVIGETFRAMEF_BESTDISPLAYFMT) {
 344     lpbi = NULL;
 345     bBestDisplay = TRUE;
 346   }
 347
 348   IAVIStream_Info(This->pStream, &sInfo, sizeof(sInfo));
 349   if (sInfo.fccType != streamtypeVIDEO)
 350     return AVIERR_UNSUPPORTED;
 351
 352   This->bFormatChanges =
 353     (sInfo.dwFlags & AVISTREAMINFO_FORMATCHANGES ? TRUE : FALSE );
 354   This->dwFormatChangeCount = sInfo.dwFormatChangeCount;
 355   This->dwEditCount         = sInfo.dwEditCount;
 356   This->lCurrentFrame       = -1;
 357
 358   /* get input format from stream */
 359   if (This->lpInFormat == NULL) {
 360     HRESULT hr;
 361
 362     This->cbInBuffer = (LONG)sInfo.dwSuggestedBufferSize;
 363     if (This->cbInBuffer == 0)
 364       This->cbInBuffer = 1024;
 365
 366     IAVIStream_ReadFormat(This->pStream, sInfo.dwStart,
 367                           NULL, &This->cbInFormat);
 368
 369     This->lpInFormat = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, This->cbInFormat + This->cbInBuffer);
 370     if (This->lpInFormat == NULL) {
 371       AVIFILE_CloseCompressor(This);
 372       return AVIERR_MEMORY;
 373     }
 374
 375     hr = IAVIStream_ReadFormat(This->pStream, sInfo.dwStart, This->lpInFormat, &This->cbInFormat);
 376     if (FAILED(hr)) {
 377       AVIFILE_CloseCompressor(This);
 378       return hr;
 379     }
 380
 381     This->lpInBuffer = ((LPBYTE)This->lpInFormat) + This->cbInFormat;
 382   }
 383
 384   /* check input format */
 385   if (This->lpInFormat->biClrUsed == 0 && This->lpInFormat->biBitCount <= 8)
 386     This->lpInFormat->biClrUsed = 1u << This->lpInFormat->biBitCount;
 387   if (This->lpInFormat->biSizeImage == 0 &&
 388       This->lpInFormat->biCompression == BI_RGB) {
 389     This->lpInFormat->biSizeImage =
 390       DIBWIDTHBYTES(*This->lpInFormat) * This->lpInFormat->biHeight;
 391   }
 392
 393   /* only to pass through? */
 394   if (This->lpInFormat->biCompression == BI_RGB && lpBits == NULL) {
 395     if (lpbi == NULL ||
 396         (lpbi->biCompression == BI_RGB &&
 397          lpbi->biWidth == This->lpInFormat->biWidth &&
 398          lpbi->biHeight == This->lpInFormat->biHeight &&
 399          lpbi->biBitCount == This->lpInFormat->biBitCount)) {
 400       This->lpOutFormat = This->lpInFormat;
 401       This->lpOutBuffer = DIBPTR(This->lpInFormat);
 402       return AVIERR_OK;
 403     }
 404   }
 405
 406   /* need memory for output format? */
 407   if (This->lpOutFormat == NULL) {
 408     This->lpOutFormat =
 409       HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(BITMAPINFOHEADER) + 256 * sizeof(RGBQUAD));
 410     if (This->lpOutFormat == NULL) {
 411       AVIFILE_CloseCompressor(This);
 412       return AVIERR_MEMORY;
 413     }
 414   }
 415
 416   /* need handle to video compressor */
 417   if (This->hic == NULL) {
 418     FOURCC fccHandler;
 419
 420     if (This->lpInFormat->biCompression == BI_RGB)
 421       fccHandler = comptypeDIB;
 422     else if (This->lpInFormat->biCompression == BI_RLE8)
 423       fccHandler = mmioFOURCC('R','L','E',' ');
 424     else
 425       fccHandler = sInfo.fccHandler;
 426
 427     if (lpbi != NULL) {
 428       if (lpbi->biWidth == 0)
 429         lpbi->biWidth = This->lpInFormat->biWidth;
 430       if (lpbi->biHeight == 0)
 431         lpbi->biHeight = This->lpInFormat->biHeight;
 432     }
 433
 434     This->hic = ICLocate(ICTYPE_VIDEO, fccHandler, This->lpInFormat, lpbi, ICMODE_DECOMPRESS);
 435     if (This->hic == NULL) {
 436       AVIFILE_CloseCompressor(This);
 437       return AVIERR_NOCOMPRESSOR;
 438     }
 439   }
 440
 441   /* output format given? */
 442   if (lpbi != NULL) {
 443     /* check the given output format ... */
 444     if (lpbi->biClrUsed == 0 && lpbi->biBitCount <= 8)
 445       lpbi->biClrUsed = 1u << lpbi->biBitCount;
 446
 447     /* ... and remember it */
 448     memcpy(This->lpOutFormat, lpbi,
 449            lpbi->biSize + lpbi->biClrUsed * sizeof(RGBQUAD));
 450     if (lpbi->biBitCount <= 8)
 451       ICDecompressGetPalette(This->hic, This->lpInFormat, This->lpOutFormat);
 452
 453     return AVIERR_OK;
 454   } else {
 455     if (bBestDisplay) {
 456       ICGetDisplayFormat(This->hic, This->lpInFormat,
 457                          This->lpOutFormat, 0, dx, dy);
 458     } else if (ICDecompressGetFormat(This->hic, This->lpInFormat,
 459                                      This->lpOutFormat) < 0) {
 460       AVIFILE_CloseCompressor(This);
 461       return AVIERR_NOCOMPRESSOR;
 462     }
 463
 464     /* check output format */
 465     if (This->lpOutFormat->biClrUsed == 0 &&
 466         This->lpOutFormat->biBitCount <= 8)
 467       This->lpOutFormat->biClrUsed = 1u << This->lpOutFormat->biBitCount;
 468     if (This->lpOutFormat->biSizeImage == 0 &&
 469         This->lpOutFormat->biCompression == BI_RGB) {
 470       This->lpOutFormat->biSizeImage =
 471         DIBWIDTHBYTES(*This->lpOutFormat) * This->lpOutFormat->biHeight;
 472     }
 473
 474     if (lpBits == NULL) {
 475       register DWORD size = This->lpOutFormat->biClrUsed * sizeof(RGBQUAD);
 476
 477       size += This->lpOutFormat->biSize + This->lpOutFormat->biSizeImage;
 478       This->lpOutFormat = HeapReAlloc(GetProcessHeap(), 0, This->lpOutFormat, size);
 479       if (This->lpOutFormat == NULL) {
 480         AVIFILE_CloseCompressor(This);
 481         return AVIERR_MEMORY;
 482       }
 483       This->lpOutBuffer = DIBPTR(This->lpOutFormat);
 484     } else
 485       This->lpOutBuffer = lpBits;
 486
 487     /* for user size was irrelevant */
 488     if (dx == -1)
 489       dx = This->lpOutFormat->biWidth;
 490     if (dy == -1)
 491       dy = This->lpOutFormat->biHeight;
 492
 493     /* need to resize? */
 494     if (x != 0 || y != 0) {
 495       if (dy == This->lpOutFormat->biHeight &&
 496           dx == This->lpOutFormat->biWidth)
 497         This->bResize = FALSE;
 498       else
 499         This->bResize = TRUE;
 500     }
 501
 502     if (This->bResize) {
 503       This->x  = x;
 504       This->y  = y;
 505       This->dx = dx;
 506       This->dy = dy;
 507
 508       if (ICDecompressExBegin(This->hic,0,This->lpInFormat,This->lpInBuffer,0,
 509                               0,This->lpInFormat->biWidth,
 510                               This->lpInFormat->biHeight,This->lpOutFormat,
 511                               This->lpOutBuffer, x, y, dx, dy) == ICERR_OK)
 512         return AVIERR_OK;
 513     } else if (ICDecompressBegin(This->hic, This->lpInFormat,
 514                                  This->lpOutFormat) == ICERR_OK)
 515       return AVIERR_OK;
 516
 517     AVIFILE_CloseCompressor(This);
 518
 519     return AVIERR_COMPRESSOR;
 520   }
 521 }
 522
 523 /***********************************************************************/