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 "windowsx.h"
  27 #include "wingdi.h"
  28 #include "winuser.h"
  29 #include "vfw.h"
  30
  31 #include "avifile_private.h"
  32
  33 #include "wine/debug.h"
  34
  35 WINE_DEFAULT_DEBUG_CHANNEL(avifile);
  36
  37 #ifndef DIBPTR
  38 #define DIBPTR(lp)      ((LPBYTE)(lp) + (lp)->biSize + \
  39                          (lp)->biClrUsed * sizeof(RGBQUAD))
  40 #endif
  41
  42 /***********************************************************************/
  43
  44 static HRESULT WINAPI IGetFrame_fnQueryInterface(IGetFrame *iface,
  45                                                  REFIID refiid, LPVOID *obj);
  46 static ULONG   WINAPI IGetFrame_fnAddRef(IGetFrame *iface);
  47 static ULONG   WINAPI IGetFrame_fnRelease(IGetFrame *iface);
  48 static LPVOID  WINAPI IGetFrame_fnGetFrame(IGetFrame *iface, LONG lPos);
  49 static HRESULT WINAPI IGetFrame_fnBegin(IGetFrame *iface, LONG lStart,
  50                                         LONG lEnd, LONG lRate);
  51 static HRESULT WINAPI IGetFrame_fnEnd(IGetFrame *iface);
  52 static HRESULT WINAPI IGetFrame_fnSetFormat(IGetFrame *iface,
  53                                             LPBITMAPINFOHEADER lpbi,
  54                                             LPVOID lpBits, INT x, INT y,
  55                                             INT dx, INT dy);
  56
  57 struct ICOM_VTABLE(IGetFrame) igetframeVtbl = {
  58   ICOM_MSVTABLE_COMPAT_DummyRTTIVALUE
  59   IGetFrame_fnQueryInterface,
  60   IGetFrame_fnAddRef,
  61   IGetFrame_fnRelease,
  62   IGetFrame_fnGetFrame,
  63   IGetFrame_fnBegin,
  64   IGetFrame_fnEnd,
  65   IGetFrame_fnSetFormat
  66 };
  67
  68 typedef struct _IGetFrameImpl {
  69   /* IUnknown stuff */
  70   ICOM_VFIELD(IGetFrame);
  71   DWORD              ref;
  72
  73   /* IGetFrame stuff */
  74   BOOL               bFixedStream;
  75   PAVISTREAM         pStream;
  76
  77   LPVOID             lpInBuffer;
  78   LONG               cbInBuffer;
  79   LPBITMAPINFOHEADER lpInFormat;
  80   LONG               cbInFormat;
  81
  82   LONG               lCurrentFrame;
  83   LPBITMAPINFOHEADER lpOutFormat;
  84   LPVOID             lpOutBuffer;
  85
  86   HIC                hic;
  87   BOOL               bResize;
  88   DWORD              x;
  89   DWORD              y;
  90   DWORD              dx;
  91   DWORD              dy;
  92
  93   BOOL               bFormatChanges;
  94   DWORD              dwFormatChangeCount;
  95   DWORD              dwEditCount;
  96 } IGetFrameImpl;
  97
  98 /***********************************************************************/
  99
 100 static void AVIFILE_CloseCompressor(IGetFrameImpl *This)
 101 {
 102   if (This->lpOutFormat != NULL && This->lpInFormat != This->lpOutFormat) {
 103     GlobalFreePtr(This->lpOutFormat);
 104     This->lpOutFormat = NULL;
 105   }
 106   if (This->lpInFormat != NULL) {
 107     GlobalFreePtr(This->lpInFormat);
 108     This->lpInFormat = NULL;
 109   }
 110   if (This->hic != NULL) {
 111     if (This->bResize)
 112       ICDecompressExEnd(This->hic);
 113     else
 114       ICDecompressEnd(This->hic);
 115     ICClose(This->hic);
 116     This->hic = NULL;
 117   }
 118 }
 119
 120 PGETFRAME AVIFILE_CreateGetFrame(PAVISTREAM pStream)
 121 {
 122   IGetFrameImpl *pg;
 123
 124   /* check parameter */
 125   if (pStream == NULL)
 126     return NULL;
 127
 128   pg = (IGetFrameImpl*)LocalAlloc(LPTR, sizeof(IGetFrameImpl));
 129   if (pg != NULL) {
 130     pg->lpVtbl        = &igetframeVtbl;
 131     pg->ref           = 1;
 132     pg->lCurrentFrame = -1;
 133     pg->pStream       = pStream;
 134     IAVIStream_AddRef(pStream);
 135   }
 136
 137   return (PGETFRAME)pg;
 138 }
 139
 140 static HRESULT WINAPI IGetFrame_fnQueryInterface(IGetFrame *iface,
 141                                                  REFIID refiid, LPVOID *obj)
 142 {
 143   ICOM_THIS(IGetFrameImpl,iface);
 144
 145   TRACE("(%p,%s,%p)\n", This, debugstr_guid(refiid), obj);
 146
 147   if (IsEqualGUID(&IID_IUnknown, refiid) ||
 148       IsEqualGUID(&IID_IGetFrame, refiid)) {
 149     *obj = iface;
 150     return S_OK;
 151   }
 152
 153   return OLE_E_ENUM_NOMORE;
 154 }
 155
 156 static ULONG   WINAPI IGetFrame_fnAddRef(IGetFrame *iface)
 157 {
 158   ICOM_THIS(IGetFrameImpl,iface);
 159
 160   TRACE("(%p)\n", iface);
 161
 162   return ++(This->ref);
 163 }
 164
 165 static ULONG   WINAPI IGetFrame_fnRelease(IGetFrame *iface)
 166 {
 167   ICOM_THIS(IGetFrameImpl,iface);
 168
 169   TRACE("(%p)\n", iface);
 170
 171   if (!--(This->ref)) {
 172     AVIFILE_CloseCompressor(This);
 173     if (This->pStream != NULL) {
 174       IAVIStream_Release(This->pStream);
 175       This->pStream = NULL;
 176     }
 177
 178     LocalFree((HLOCAL)iface);
 179     return 0;
 180   }
 181
 182   return This->ref;
 183 }
 184
 185 static LPVOID  WINAPI IGetFrame_fnGetFrame(IGetFrame *iface, LONG lPos)
 186 {
 187   ICOM_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 = GlobalReAllocPtr(This->lpInFormat, This->cbInBuffer, 0);
 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   ICOM_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   ICOM_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   ICOM_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 ((LONG)lpbiWanted == 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 =
 370       (LPBITMAPINFOHEADER)GlobalAllocPtr(GHND, This->cbInFormat + This->cbInBuffer);
 371     if (This->lpInFormat == NULL) {
 372       AVIFILE_CloseCompressor(This);
 373       return AVIERR_MEMORY;
 374     }
 375
 376     hr = IAVIStream_ReadFormat(This->pStream, sInfo.dwStart, This->lpInFormat, &This->cbInFormat);
 377     if (FAILED(hr)) {
 378       AVIFILE_CloseCompressor(This);
 379       return hr;
 380     }
 381
 382     This->lpInBuffer = ((LPBYTE)This->lpInFormat) + This->cbInFormat;
 383   }
 384
 385   /* check input format */
 386   if (This->lpInFormat->biClrUsed == 0 && This->lpInFormat->biBitCount <= 8)
 387     This->lpInFormat->biClrUsed = 1u << This->lpInFormat->biBitCount;
 388   if (This->lpInFormat->biSizeImage == 0 &&
 389       This->lpInFormat->biCompression == BI_RGB) {
 390     This->lpInFormat->biSizeImage =
 391       DIBWIDTHBYTES(*This->lpInFormat) * This->lpInFormat->biHeight;
 392   }
 393
 394   /* only to pass through? */
 395   if (This->lpInFormat->biCompression == BI_RGB && lpBits == NULL) {
 396     if (lpbi == NULL ||
 397         (lpbi->biCompression == BI_RGB &&
 398          lpbi->biWidth == This->lpInFormat->biWidth &&
 399          lpbi->biHeight == This->lpInFormat->biHeight &&
 400          lpbi->biBitCount == This->lpInFormat->biBitCount)) {
 401       This->lpOutFormat = This->lpInFormat;
 402       This->lpOutBuffer = DIBPTR(This->lpInFormat);
 403       return AVIERR_OK;
 404     }
 405   }
 406
 407   /* need memory for output format? */
 408   if (This->lpOutFormat == NULL) {
 409     This->lpOutFormat =
 410       (LPBITMAPINFOHEADER)GlobalAllocPtr(GHND, sizeof(BITMAPINFOHEADER)
 411                                          + 256 * sizeof(RGBQUAD));
 412     if (This->lpOutFormat == NULL) {
 413       AVIFILE_CloseCompressor(This);
 414       return AVIERR_MEMORY;
 415     }
 416   }
 417
 418   /* need handle to video compressor */
 419   if (This->hic == NULL) {
 420     FOURCC fccHandler;
 421
 422     if (This->lpInFormat->biCompression == BI_RGB)
 423       fccHandler = comptypeDIB;
 424     else if (This->lpInFormat->biCompression == BI_RLE8)
 425       fccHandler = mmioFOURCC('R','L','E',' ');
 426     else
 427       fccHandler = sInfo.fccHandler;
 428
 429     if (lpbi != NULL) {
 430       if (lpbi->biWidth == 0)
 431         lpbi->biWidth = This->lpInFormat->biWidth;
 432       if (lpbi->biHeight == 0)
 433         lpbi->biHeight = This->lpInFormat->biHeight;
 434     }
 435
 436     This->hic = ICLocate(ICTYPE_VIDEO, fccHandler, This->lpInFormat, lpbi, ICMODE_DECOMPRESS);
 437     if (This->hic == NULL) {
 438       AVIFILE_CloseCompressor(This);
 439       return AVIERR_NOCOMPRESSOR;
 440     }
 441   }
 442
 443   /* output format given? */
 444   if (lpbi != NULL) {
 445     /* check the given output format ... */
 446     if (lpbi->biClrUsed == 0 && lpbi->biBitCount <= 8)
 447       lpbi->biClrUsed = 1u << lpbi->biBitCount;
 448
 449     /* ... and remember it */
 450     memcpy(This->lpOutFormat, lpbi,
 451            lpbi->biSize + lpbi->biClrUsed * sizeof(RGBQUAD));
 452     if (lpbi->biBitCount <= 8)
 453       ICDecompressGetPalette(This->hic, This->lpInFormat, This->lpOutFormat);
 454
 455     return AVIERR_OK;
 456   } else {
 457     if (bBestDisplay) {
 458       ICGetDisplayFormat(This->hic, This->lpInFormat,
 459                          This->lpOutFormat, 0, dx, dy);
 460     } else if (ICDecompressGetFormat(This->hic, This->lpInFormat,
 461                                      This->lpOutFormat) < 0) {
 462       AVIFILE_CloseCompressor(This);
 463       return AVIERR_NOCOMPRESSOR;
 464     }
 465
 466     /* check output format */
 467     if (This->lpOutFormat->biClrUsed == 0 &&
 468         This->lpOutFormat->biBitCount <= 8)
 469       This->lpOutFormat->biClrUsed = 1u << This->lpOutFormat->biBitCount;
 470     if (This->lpOutFormat->biSizeImage == 0 &&
 471         This->lpOutFormat->biCompression == BI_RGB) {
 472       This->lpOutFormat->biSizeImage =
 473         DIBWIDTHBYTES(*This->lpOutFormat) * This->lpOutFormat->biHeight;
 474     }
 475
 476     if (lpBits == NULL) {
 477       register DWORD size = This->lpOutFormat->biClrUsed * sizeof(RGBQUAD);
 478
 479       size += This->lpOutFormat->biSize + This->lpOutFormat->biSizeImage;
 480       This->lpOutFormat =
 481         (LPBITMAPINFOHEADER)GlobalReAllocPtr(This->lpOutFormat, size, GMEM_MOVEABLE);
 482       if (This->lpOutFormat == NULL) {
 483         AVIFILE_CloseCompressor(This);
 484         return AVIERR_MEMORY;
 485       }
 486       This->lpOutBuffer = DIBPTR(This->lpOutFormat);
 487     } else
 488       This->lpOutBuffer = lpBits;
 489
 490     /* for user size was irrelevant */
 491     if (dx == -1)
 492       dx = This->lpOutFormat->biWidth;
 493     if (dy == -1)
 494       dy = This->lpOutFormat->biHeight;
 495
 496     /* need to resize? */
 497     if (x != 0 || y != 0) {
 498       if (dy == This->lpOutFormat->biHeight &&
 499           dx == This->lpOutFormat->biWidth)
 500         This->bResize = FALSE;
 501       else
 502         This->bResize = TRUE;
 503     }
 504
 505     if (This->bResize) {
 506       This->x  = x;
 507       This->y  = y;
 508       This->dx = dx;
 509       This->dy = dy;
 510
 511       if (ICDecompressExBegin(This->hic,0,This->lpInFormat,This->lpInBuffer,0,
 512                               0,This->lpInFormat->biWidth,
 513                               This->lpInFormat->biHeight,This->lpOutFormat,
 514                               This->lpOutBuffer, x, y, dx, dy) == ICERR_OK)
 515         return AVIERR_OK;
 516     } else if (ICDecompressBegin(This->hic, This->lpInFormat,
 517                                  This->lpOutFormat) == ICERR_OK)
 518       return AVIERR_OK;
 519
 520     AVIFILE_CloseCompressor(This);
 521
 522     return AVIERR_COMPRESSOR;
 523   }
 524 }
 525
 526 /***********************************************************************/