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 IGetFrameVtbl igetframeVtbl = {
  58   IGetFrame_fnQueryInterface,
  59   IGetFrame_fnAddRef,
  60   IGetFrame_fnRelease,
  61   IGetFrame_fnGetFrame,
  62   IGetFrame_fnBegin,
  63   IGetFrame_fnEnd,
  64   IGetFrame_fnSetFormat
  65 };
  66
  67 typedef struct _IGetFrameImpl {
  68   /* IUnknown stuff */
  69   IGetFrameVtbl     *lpVtbl;
  70   DWORD              ref;
  71
  72   /* IGetFrame stuff */
  73   BOOL               bFixedStream;
  74   PAVISTREAM         pStream;
  75
  76   LPVOID             lpInBuffer;
  77   LONG               cbInBuffer;
  78   LPBITMAPINFOHEADER lpInFormat;
  79   LONG               cbInFormat;
  80
  81   LONG               lCurrentFrame;
  82   LPBITMAPINFOHEADER lpOutFormat;
  83   LPVOID             lpOutBuffer;
  84
  85   HIC                hic;
  86   BOOL               bResize;
  87   DWORD              x;
  88   DWORD              y;
  89   DWORD              dx;
  90   DWORD              dy;
  91
  92   BOOL               bFormatChanges;
  93   DWORD              dwFormatChangeCount;
  94   DWORD              dwEditCount;
  95 } IGetFrameImpl;
  96
  97 /***********************************************************************/
  98
  99 static void AVIFILE_CloseCompressor(IGetFrameImpl *This)
 100 {
 101   if (This->lpOutFormat != NULL && This->lpInFormat != This->lpOutFormat) {
 102     GlobalFreePtr(This->lpOutFormat);
 103     This->lpOutFormat = NULL;
 104   }
 105   if (This->lpInFormat != NULL) {
 106     GlobalFreePtr(This->lpInFormat);
 107     This->lpInFormat = NULL;
 108   }
 109   if (This->hic != NULL) {
 110     if (This->bResize)
 111       ICDecompressExEnd(This->hic);
 112     else
 113       ICDecompressEnd(This->hic);
 114     ICClose(This->hic);
 115     This->hic = NULL;
 116   }
 117 }
 118
 119 PGETFRAME AVIFILE_CreateGetFrame(PAVISTREAM pStream)
 120 {
 121   IGetFrameImpl *pg;
 122
 123   /* check parameter */
 124   if (pStream == NULL)
 125     return NULL;
 126
 127   pg = (IGetFrameImpl*)LocalAlloc(LPTR, sizeof(IGetFrameImpl));
 128   if (pg != NULL) {
 129     pg->lpVtbl        = &igetframeVtbl;
 130     pg->ref           = 1;
 131     pg->lCurrentFrame = -1;
 132     pg->pStream       = pStream;
 133     IAVIStream_AddRef(pStream);
 134   }
 135
 136   return (PGETFRAME)pg;
 137 }
 138
 139 static HRESULT WINAPI IGetFrame_fnQueryInterface(IGetFrame *iface,
 140                                                  REFIID refiid, LPVOID *obj)
 141 {
 142   IGetFrameImpl *This = (IGetFrameImpl *)iface;
 143
 144   TRACE("(%p,%s,%p)\n", This, debugstr_guid(refiid), obj);
 145
 146   if (IsEqualGUID(&IID_IUnknown, refiid) ||
 147       IsEqualGUID(&IID_IGetFrame, refiid)) {
 148     *obj = iface;
 149     return S_OK;
 150   }
 151
 152   return OLE_E_ENUM_NOMORE;
 153 }
 154
 155 static ULONG   WINAPI IGetFrame_fnAddRef(IGetFrame *iface)
 156 {
 157   IGetFrameImpl *This = (IGetFrameImpl *)iface;
 158
 159   TRACE("(%p)\n", iface);
 160
 161   return ++(This->ref);
 162 }
 163
 164 static ULONG   WINAPI IGetFrame_fnRelease(IGetFrame *iface)
 165 {
 166   IGetFrameImpl *This = (IGetFrameImpl *)iface;
 167
 168   TRACE("(%p)\n", iface);
 169
 170   if (!--(This->ref)) {
 171     AVIFILE_CloseCompressor(This);
 172     if (This->pStream != NULL) {
 173       IAVIStream_Release(This->pStream);
 174       This->pStream = NULL;
 175     }
 176
 177     LocalFree((HLOCAL)iface);
 178     return 0;
 179   }
 180
 181   return This->ref;
 182 }
 183
 184 static LPVOID  WINAPI IGetFrame_fnGetFrame(IGetFrame *iface, LONG lPos)
 185 {
 186   IGetFrameImpl *This = (IGetFrameImpl *)iface;
 187
 188   LONG readBytes;
 189   LONG readSamples;
 190
 191   TRACE("(%p,%ld)\n", iface, lPos);
 192
 193   /* We don't want negative start values! -- marks invalid buffer content */
 194   if (lPos < 0)
 195     return NULL;
 196
 197   /* check state */
 198   if (This->pStream == NULL)
 199     return NULL;
 200   if (This->lpInFormat == NULL)
 201     return NULL;
 202
 203   /* Could stream have changed? */
 204   if (! This->bFixedStream) {
 205     AVISTREAMINFOW sInfo;
 206
 207     IAVIStream_Info(This->pStream, &sInfo, sizeof(sInfo));
 208
 209     if (sInfo.dwEditCount != This->dwEditCount) {
 210       This->dwEditCount   = sInfo.dwEditCount;
 211       This->lCurrentFrame = -1;
 212     }
 213
 214     if (sInfo.dwFormatChangeCount != This->dwFormatChangeCount) {
 215       /* stream has changed */
 216       if (This->lpOutFormat != NULL) {
 217         BITMAPINFOHEADER bi;
 218
 219         memcpy(&bi, This->lpOutFormat, sizeof(bi));
 220         AVIFILE_CloseCompressor(This);
 221
 222         if (FAILED(IGetFrame_SetFormat(iface, &bi, NULL, 0, 0, -1, -1))) {
 223           if (FAILED(IGetFrame_SetFormat(iface, NULL, NULL, 0, 0, -1, -1)))
 224             return NULL;
 225         }
 226       } else if (FAILED(IGetFrame_SetFormat(iface, NULL, NULL, 0, 0, -1, -1)))
 227         return NULL;
 228     }
 229   }
 230
 231   if (lPos != This->lCurrentFrame) {
 232     LONG lNext = IAVIStream_FindSample(This->pStream,lPos,FIND_KEY|FIND_PREV);
 233
 234     if (lNext == -1)
 235       return NULL; /* frame doesn't exist */
 236     if (lNext <= This->lCurrentFrame && This->lCurrentFrame < lPos)
 237       lNext = This->lCurrentFrame + 1;
 238
 239     for (; lNext <= lPos; lNext++) {
 240       /* new format for this frame? */
 241       if (This->bFormatChanges) {
 242         IAVIStream_ReadFormat(This->pStream, lNext,
 243                               This->lpInFormat, &This->cbInFormat);
 244         if (This->lpOutFormat != NULL) {
 245           if (This->lpOutFormat->biBitCount <= 8)
 246             ICDecompressGetPalette(This->hic, This->lpInFormat,
 247                                    This->lpOutFormat);
 248         }
 249       }
 250
 251       /* read input frame */
 252       while (FAILED(AVIStreamRead(This->pStream, lNext, 1, This->lpInBuffer,
 253                                   This->cbInBuffer, &readBytes, &readSamples))) {
 254         /* not enough memory for input buffer? */
 255         readBytes = 0;
 256         if (FAILED(AVIStreamSampleSize(This->pStream, lNext, &readBytes)))
 257           return NULL; /* bad thing, but bad things will happen */
 258         if (readBytes <= 0) {
 259           ERR(": IAVIStream::REad doesn't return needed bytes!\n");
 260           return NULL;
 261         }
 262
 263         /* IAVIStream::Read failed because of other reasons not buffersize? */
 264         if (This->cbInBuffer >= readBytes)
 265           break;
 266         This->cbInBuffer = This->cbInFormat + readBytes;
 267         This->lpInFormat = GlobalReAllocPtr(This->lpInFormat, This->cbInBuffer, 0);
 268         if (This->lpInFormat == NULL)
 269           return NULL; /* out of memory */
 270         This->lpInBuffer = (BYTE*)This->lpInFormat + This->cbInFormat;
 271       }
 272
 273       if (readSamples != 1) {
 274         ERR(": no frames read\n");
 275         return NULL;
 276       }
 277       if (readBytes != 0) {
 278         This->lpInFormat->biSizeImage = readBytes;
 279
 280         /* nothing to decompress? */
 281         if (This->hic == NULL) {
 282           This->lCurrentFrame = lPos;
 283           return This->lpInFormat;
 284         }
 285
 286         if (This->bResize) {
 287           ICDecompressEx(This->hic,0,This->lpInFormat,This->lpInBuffer,0,0,
 288                          This->lpInFormat->biWidth,This->lpInFormat->biHeight,
 289                          This->lpOutFormat,This->lpOutBuffer,This->x,This->y,
 290                          This->dx,This->dy);
 291         } else {
 292           ICDecompress(This->hic, 0, This->lpInFormat, This->lpInBuffer,
 293                        This->lpOutFormat, This->lpOutBuffer);
 294         }
 295       }
 296     } /* for (lNext < lPos) */
 297   } /* if (This->lCurrentFrame != lPos) */
 298
 299   return (This->hic == NULL ? This->lpInFormat : This->lpOutFormat);
 300 }
 301
 302 static HRESULT WINAPI IGetFrame_fnBegin(IGetFrame *iface, LONG lStart,
 303                                         LONG lEnd, LONG lRate)
 304 {
 305   IGetFrameImpl *This = (IGetFrameImpl *)iface;
 306
 307   TRACE("(%p,%ld,%ld,%ld)\n", iface, lStart, lEnd, lRate);
 308
 309   This->bFixedStream = TRUE;
 310
 311   return (IGetFrame_GetFrame(iface, lStart) ? AVIERR_OK : AVIERR_ERROR);
 312 }
 313
 314 static HRESULT WINAPI IGetFrame_fnEnd(IGetFrame *iface)
 315 {
 316   IGetFrameImpl *This = (IGetFrameImpl *)iface;
 317
 318   TRACE("(%p)\n", iface);
 319
 320   This->bFixedStream = FALSE;
 321
 322   return AVIERR_OK;
 323 }
 324
 325 static HRESULT WINAPI IGetFrame_fnSetFormat(IGetFrame *iface,
 326                                             LPBITMAPINFOHEADER lpbiWanted,
 327                                             LPVOID lpBits, INT x, INT y,
 328                                             INT dx, INT dy)
 329 {
 330   IGetFrameImpl *This = (IGetFrameImpl *)iface;
 331
 332   AVISTREAMINFOW     sInfo;
 333   LPBITMAPINFOHEADER lpbi         = lpbiWanted;
 334   BOOL               bBestDisplay = FALSE;
 335
 336   TRACE("(%p,%p,%p,%d,%d,%d,%d)\n", iface, lpbiWanted, lpBits,
 337         x, y, dx, dy);
 338
 339   if (This->pStream == NULL)
 340     return AVIERR_ERROR;
 341
 342   if ((LONG)lpbiWanted == AVIGETFRAMEF_BESTDISPLAYFMT) {
 343     lpbi = NULL;
 344     bBestDisplay = TRUE;
 345   }
 346
 347   IAVIStream_Info(This->pStream, &sInfo, sizeof(sInfo));
 348   if (sInfo.fccType != streamtypeVIDEO)
 349     return AVIERR_UNSUPPORTED;
 350
 351   This->bFormatChanges =
 352     (sInfo.dwFlags & AVISTREAMINFO_FORMATCHANGES ? TRUE : FALSE );
 353   This->dwFormatChangeCount = sInfo.dwFormatChangeCount;
 354   This->dwEditCount         = sInfo.dwEditCount;
 355   This->lCurrentFrame       = -1;
 356
 357   /* get input format from stream */
 358   if (This->lpInFormat == NULL) {
 359     HRESULT hr;
 360
 361     This->cbInBuffer = (LONG)sInfo.dwSuggestedBufferSize;
 362     if (This->cbInBuffer == 0)
 363       This->cbInBuffer = 1024;
 364
 365     IAVIStream_ReadFormat(This->pStream, sInfo.dwStart,
 366                           NULL, &This->cbInFormat);
 367
 368     This->lpInFormat =
 369       (LPBITMAPINFOHEADER)GlobalAllocPtr(GHND, 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       (LPBITMAPINFOHEADER)GlobalAllocPtr(GHND, sizeof(BITMAPINFOHEADER)
 410                                          + 256 * sizeof(RGBQUAD));
 411     if (This->lpOutFormat == NULL) {
 412       AVIFILE_CloseCompressor(This);
 413       return AVIERR_MEMORY;
 414     }
 415   }
 416
 417   /* need handle to video compressor */
 418   if (This->hic == NULL) {
 419     FOURCC fccHandler;
 420
 421     if (This->lpInFormat->biCompression == BI_RGB)
 422       fccHandler = comptypeDIB;
 423     else if (This->lpInFormat->biCompression == BI_RLE8)
 424       fccHandler = mmioFOURCC('R','L','E',' ');
 425     else
 426       fccHandler = sInfo.fccHandler;
 427
 428     if (lpbi != NULL) {
 429       if (lpbi->biWidth == 0)
 430         lpbi->biWidth = This->lpInFormat->biWidth;
 431       if (lpbi->biHeight == 0)
 432         lpbi->biHeight = This->lpInFormat->biHeight;
 433     }
 434
 435     This->hic = ICLocate(ICTYPE_VIDEO, fccHandler, This->lpInFormat, lpbi, ICMODE_DECOMPRESS);
 436     if (This->hic == NULL) {
 437       AVIFILE_CloseCompressor(This);
 438       return AVIERR_NOCOMPRESSOR;
 439     }
 440   }
 441
 442   /* output format given? */
 443   if (lpbi != NULL) {
 444     /* check the given output format ... */
 445     if (lpbi->biClrUsed == 0 && lpbi->biBitCount <= 8)
 446       lpbi->biClrUsed = 1u << lpbi->biBitCount;
 447
 448     /* ... and remember it */
 449     memcpy(This->lpOutFormat, lpbi,
 450            lpbi->biSize + lpbi->biClrUsed * sizeof(RGBQUAD));
 451     if (lpbi->biBitCount <= 8)
 452       ICDecompressGetPalette(This->hic, This->lpInFormat, This->lpOutFormat);
 453
 454     return AVIERR_OK;
 455   } else {
 456     if (bBestDisplay) {
 457       ICGetDisplayFormat(This->hic, This->lpInFormat,
 458                          This->lpOutFormat, 0, dx, dy);
 459     } else if (ICDecompressGetFormat(This->hic, This->lpInFormat,
 460                                      This->lpOutFormat) < 0) {
 461       AVIFILE_CloseCompressor(This);
 462       return AVIERR_NOCOMPRESSOR;
 463     }
 464
 465     /* check output format */
 466     if (This->lpOutFormat->biClrUsed == 0 &&
 467         This->lpOutFormat->biBitCount <= 8)
 468       This->lpOutFormat->biClrUsed = 1u << This->lpOutFormat->biBitCount;
 469     if (This->lpOutFormat->biSizeImage == 0 &&
 470         This->lpOutFormat->biCompression == BI_RGB) {
 471       This->lpOutFormat->biSizeImage =
 472         DIBWIDTHBYTES(*This->lpOutFormat) * This->lpOutFormat->biHeight;
 473     }
 474
 475     if (lpBits == NULL) {
 476       register DWORD size = This->lpOutFormat->biClrUsed * sizeof(RGBQUAD);
 477
 478       size += This->lpOutFormat->biSize + This->lpOutFormat->biSizeImage;
 479       This->lpOutFormat =
 480         (LPBITMAPINFOHEADER)GlobalReAllocPtr(This->lpOutFormat, size, GMEM_MOVEABLE);
 481       if (This->lpOutFormat == NULL) {
 482         AVIFILE_CloseCompressor(This);
 483         return AVIERR_MEMORY;
 484       }
 485       This->lpOutBuffer = DIBPTR(This->lpOutFormat);
 486     } else
 487       This->lpOutBuffer = lpBits;
 488
 489     /* for user size was irrelevant */
 490     if (dx == -1)
 491       dx = This->lpOutFormat->biWidth;
 492     if (dy == -1)
 493       dy = This->lpOutFormat->biHeight;
 494
 495     /* need to resize? */
 496     if (x != 0 || y != 0) {
 497       if (dy == This->lpOutFormat->biHeight &&
 498           dx == This->lpOutFormat->biWidth)
 499         This->bResize = FALSE;
 500       else
 501         This->bResize = TRUE;
 502     }
 503
 504     if (This->bResize) {
 505       This->x  = x;
 506       This->y  = y;
 507       This->dx = dx;
 508       This->dy = dy;
 509
 510       if (ICDecompressExBegin(This->hic,0,This->lpInFormat,This->lpInBuffer,0,
 511                               0,This->lpInFormat->biWidth,
 512                               This->lpInFormat->biHeight,This->lpOutFormat,
 513                               This->lpOutBuffer, x, y, dx, dy) == ICERR_OK)
 514         return AVIERR_OK;
 515     } else if (ICDecompressBegin(This->hic, This->lpInFormat,
 516                                  This->lpOutFormat) == ICERR_OK)
 517       return AVIERR_OK;
 518
 519     AVIFILE_CloseCompressor(This);
 520
 521     return AVIERR_COMPRESSOR;
 522   }
 523 }
 524
 525 /***********************************************************************/