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 "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 struct ICOM_VTABLE(IGetFrame) igetframeVtbl = {
  57   ICOM_MSVTABLE_COMPAT_DummyRTTIVALUE
  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   ICOM_VFIELD(IGetFrame);
  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   ICOM_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   ICOM_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   ICOM_THIS(IGetFrameImpl,iface);
 167
 168   TRACE("(%p)\n", iface);
 169
 170   if (!--(This->ref)) {
 171     AVIFILE_CloseCompressor(This);
 172     if (This->pStream != NULL) {
 173       AVIStreamRelease(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   ICOM_THIS(IGetFrameImpl,iface);
 187
 188   LONG readBytes;
 189   LONG readSamples;
 190
 191   TRACE("(%p,%ld)\n", iface, lPos);
 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         memcpy(&bi, This->lpOutFormat, sizeof(bi));
 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 = AVIStreamFindSample(This->pStream, lPos, FIND_KEY|FIND_PREV);
 229
 230     if (lNext == -1)
 231       return NULL;
 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         AVIStreamReadFormat(This->pStream, lNext, This->lpInFormat, &This->cbInFormat);
 239         if (This->lpOutFormat != NULL) {
 240           if (This->lpOutFormat->biBitCount <= 8)
 241             ICDecompressGetPalette(This->hic, This->lpInFormat,
 242                                    This->lpOutFormat);
 243         }
 244       }
 245
 246       /* read input frame */
 247       while (FAILED(AVIStreamRead(This->pStream, lNext, 1, This->lpInBuffer,
 248                                   This->cbInBuffer, &readBytes, &readSamples))) {
 249         /* not enough memory for input buffer? */
 250         readBytes = 0;
 251         if (FAILED(AVIStreamSampleSize(This->pStream, lNext, &readBytes)))
 252           return NULL;
 253         if (This->cbInBuffer >= readBytes)
 254           break;
 255         This->lpInFormat = GlobalReAllocPtr(This->lpInFormat, This->cbInFormat + readBytes, 0);
 256         if (This->lpInFormat == NULL)
 257           return NULL;
 258         This->lpInBuffer = (BYTE*)This->lpInFormat + This->cbInFormat;
 259       }
 260
 261       if (readSamples != 1)
 262         return NULL;
 263       if (readBytes != 0) {
 264         This->lpInFormat->biSizeImage = readBytes;
 265
 266         /* nothing to decompress? */
 267         if (This->hic == NULL) {
 268           This->lCurrentFrame = lPos;
 269           return This->lpInFormat;
 270         }
 271
 272         if (This->bResize) {
 273           ICDecompressEx(This->hic,0,This->lpInFormat,This->lpInBuffer,0,0,
 274                          This->lpInFormat->biWidth,This->lpInFormat->biHeight,
 275                          This->lpOutFormat,This->lpOutBuffer,This->x,This->y,
 276                          This->dx,This->dy);
 277         } else {
 278           ICDecompress(This->hic, 0, This->lpInFormat, This->lpInBuffer,
 279                        This->lpOutFormat, This->lpOutBuffer);
 280         }
 281       }
 282     } /* for (lNext < lPos) */
 283   } /* if (This->lCurrentFrame != lPos) */
 284
 285   return (This->hic == NULL ? This->lpInFormat : This->lpOutFormat);
 286 }
 287
 288 static HRESULT WINAPI IGetFrame_fnBegin(IGetFrame *iface, LONG lStart,
 289                                         LONG lEnd, LONG lRate)
 290 {
 291   ICOM_THIS(IGetFrameImpl,iface);
 292
 293   TRACE("(%p,%ld,%ld,%ld)\n", iface, lStart, lEnd, lRate);
 294
 295   This->bFixedStream = TRUE;
 296
 297   return (IGetFrame_GetFrame(iface, lStart) ? AVIERR_OK : AVIERR_ERROR);
 298 }
 299
 300 static HRESULT WINAPI IGetFrame_fnEnd(IGetFrame *iface)
 301 {
 302   ICOM_THIS(IGetFrameImpl,iface);
 303
 304   TRACE("(%p)\n", iface);
 305
 306   This->bFixedStream = FALSE;
 307
 308   return AVIERR_OK;
 309 }
 310
 311 static HRESULT WINAPI IGetFrame_fnSetFormat(IGetFrame *iface,
 312                                             LPBITMAPINFOHEADER lpbiWanted,
 313                                             LPVOID lpBits, INT x, INT y,
 314                                             INT dx, INT dy)
 315 {
 316   ICOM_THIS(IGetFrameImpl,iface);
 317
 318   AVISTREAMINFOW     sInfo;
 319   LPBITMAPINFOHEADER lpbi         = lpbiWanted;
 320   BOOL               bBestDisplay = FALSE;
 321
 322   TRACE("(%p,%p,%p,%d,%d,%d,%d)\n", iface, lpbiWanted, lpBits,
 323         x, y, dx, dy);
 324
 325   if (This->pStream == NULL)
 326     return AVIERR_ERROR;
 327
 328   if ((LONG)lpbiWanted == AVIGETFRAMEF_BESTDISPLAYFMT) {
 329     lpbi = NULL;
 330     bBestDisplay = TRUE;
 331   }
 332
 333   IAVIStream_Info(This->pStream, &sInfo, sizeof(sInfo));
 334   if (sInfo.fccType != streamtypeVIDEO)
 335     return AVIERR_UNSUPPORTED;
 336
 337   This->bFormatChanges =
 338     (sInfo.dwFlags & AVISTREAMINFO_FORMATCHANGES ? TRUE : FALSE );
 339   This->dwFormatChangeCount = sInfo.dwFormatChangeCount;
 340   This->dwEditCount         = sInfo.dwEditCount;
 341   This->lCurrentFrame       = -1;
 342
 343   /* get input format from stream */
 344   if (This->lpInFormat == NULL) {
 345     HRESULT hr;
 346
 347     This->cbInBuffer = (LONG)sInfo.dwSuggestedBufferSize;
 348     if (This->cbInBuffer == 0)
 349       This->cbInBuffer = 1024;
 350
 351     AVIStreamFormatSize(This->pStream, sInfo.dwStart, &This->cbInFormat);
 352
 353     This->lpInFormat =
 354       (LPBITMAPINFOHEADER)GlobalAllocPtr(GHND, This->cbInFormat + This->cbInBuffer);
 355     if (This->lpInFormat == NULL) {
 356       AVIFILE_CloseCompressor(This);
 357       return AVIERR_MEMORY;
 358     }
 359
 360     hr = AVIStreamReadFormat(This->pStream, sInfo.dwStart, This->lpInFormat, &This->cbInFormat);
 361     if (FAILED(hr)) {
 362       AVIFILE_CloseCompressor(This);
 363       return hr;
 364     }
 365
 366     This->lpInBuffer = ((LPBYTE)This->lpInFormat) + This->cbInFormat;
 367   }
 368
 369   /* check input format */
 370   if (This->lpInFormat->biClrUsed == 0 && This->lpInFormat->biBitCount <= 8)
 371     This->lpInFormat->biClrUsed = 1u << This->lpInFormat->biBitCount;
 372   if (This->lpInFormat->biSizeImage == 0 &&
 373       This->lpInFormat->biCompression == BI_RGB) {
 374     This->lpInFormat->biSizeImage =
 375       DIBWIDTHBYTES(*This->lpInFormat) * This->lpInFormat->biHeight;
 376   }
 377
 378   /* only to pass through? */
 379   if (This->lpInFormat->biCompression == BI_RGB && lpBits == NULL) {
 380     if (lpbi == NULL ||
 381         (lpbi->biCompression == BI_RGB &&
 382          lpbi->biWidth == This->lpInFormat->biWidth &&
 383          lpbi->biHeight == This->lpInFormat->biHeight &&
 384          lpbi->biBitCount == This->lpInFormat->biBitCount)) {
 385       This->lpOutFormat = This->lpInFormat;
 386       This->lpOutBuffer = DIBPTR(This->lpInFormat);
 387       return AVIERR_OK;
 388     }
 389   }
 390
 391   /* need memory for output format? */
 392   if (This->lpOutFormat == NULL) {
 393     This->lpOutFormat =
 394       (LPBITMAPINFOHEADER)GlobalAllocPtr(GHND, sizeof(BITMAPINFOHEADER)
 395                                          + 256 * sizeof(RGBQUAD));
 396     if (This->lpOutFormat == NULL) {
 397       AVIFILE_CloseCompressor(This);
 398       return AVIERR_MEMORY;
 399     }
 400   }
 401
 402   /* need handle to video compressor */
 403   if (This->hic == NULL) {
 404     FOURCC fccHandler;
 405
 406     if (This->lpInFormat->biCompression == BI_RGB)
 407       fccHandler = comptypeDIB;
 408     else if (This->lpInFormat->biCompression == BI_RLE8)
 409       fccHandler = mmioFOURCC('R','L','E',' ');
 410     else
 411       fccHandler = sInfo.fccHandler;
 412
 413     if (lpbi != NULL) {
 414       if (lpbi->biWidth == 0)
 415         lpbi->biWidth = This->lpInFormat->biWidth;
 416       if (lpbi->biHeight == 0)
 417         lpbi->biHeight = This->lpInFormat->biHeight;
 418     }
 419
 420     This->hic = ICLocate(ICTYPE_VIDEO, fccHandler, This->lpInFormat, lpbi, ICMODE_DECOMPRESS);
 421     if (This->hic == NULL) {
 422       AVIFILE_CloseCompressor(This);
 423       return AVIERR_NOCOMPRESSOR;
 424     }
 425   }
 426
 427   /* output format given? */
 428   if (lpbi != NULL) {
 429     /* check the given output format ... */
 430     if (lpbi->biClrUsed == 0 && lpbi->biBitCount <= 8)
 431       lpbi->biClrUsed = 1u << lpbi->biBitCount;
 432
 433     /* ... and remember it */
 434     memcpy(This->lpOutFormat, lpbi,
 435            lpbi->biSize + lpbi->biClrUsed * sizeof(RGBQUAD));
 436     if (lpbi->biBitCount <= 8)
 437       ICDecompressGetPalette(This->hic, This->lpInFormat, This->lpOutFormat);
 438
 439     return AVIERR_OK;
 440   } else {
 441     if (bBestDisplay) {
 442       ICGetDisplayFormat(This->hic, This->lpInFormat,
 443                          This->lpOutFormat, 0, dx, dy);
 444     } else if (ICDecompressGetFormat(This->hic, This->lpInFormat,
 445                                      This->lpOutFormat) < 0) {
 446       AVIFILE_CloseCompressor(This);
 447       return AVIERR_NOCOMPRESSOR;
 448     }
 449
 450     /* check output format */
 451     if (This->lpOutFormat->biClrUsed == 0 &&
 452         This->lpOutFormat->biBitCount <= 8)
 453       This->lpOutFormat->biClrUsed = 1u << This->lpOutFormat->biBitCount;
 454     if (This->lpOutFormat->biSizeImage == 0 &&
 455         This->lpOutFormat->biCompression == BI_RGB) {
 456       This->lpOutFormat->biSizeImage =
 457         DIBWIDTHBYTES(*This->lpOutFormat) * This->lpOutFormat->biHeight;
 458     }
 459
 460     if (lpBits == NULL) {
 461       register DWORD size = This->lpOutFormat->biClrUsed * sizeof(RGBQUAD);
 462
 463       size += This->lpOutFormat->biSize + This->lpOutFormat->biSizeImage;
 464       This->lpOutFormat =
 465         (LPBITMAPINFOHEADER)GlobalReAllocPtr(This->lpOutFormat, size, GMEM_MOVEABLE);
 466       if (This->lpOutFormat == NULL) {
 467         AVIFILE_CloseCompressor(This);
 468         return AVIERR_MEMORY;
 469       }
 470       This->lpOutBuffer = DIBPTR(This->lpOutFormat);
 471     } else
 472       This->lpOutBuffer = lpBits;
 473
 474     /* for user size was irrelevant */
 475     if (dx == -1)
 476       dx = This->lpOutFormat->biWidth;
 477     if (dy == -1)
 478       dy = This->lpOutFormat->biHeight;
 479
 480     /* need to resize? */
 481     if (x != 0 || y != 0) {
 482       if (dy == This->lpOutFormat->biHeight &&
 483           dx == This->lpOutFormat->biWidth)
 484         This->bResize = FALSE;
 485       else
 486         This->bResize = TRUE;
 487     }
 488
 489     if (This->bResize) {
 490       This->x  = x;
 491       This->y  = y;
 492       This->dx = dx;
 493       This->dy = dy;
 494
 495       if (ICDecompressExBegin(This->hic,0,This->lpInFormat,This->lpInBuffer,0,
 496                               0,This->lpInFormat->biWidth,
 497                               This->lpInFormat->biHeight,This->lpOutFormat,
 498                               This->lpOutBuffer, x, y, dx, dy) == ICERR_OK)
 499         return AVIERR_OK;
 500     } else if (ICDecompressBegin(This->hic, This->lpInFormat,
 501                                  This->lpOutFormat) == ICERR_OK)
 502       return AVIERR_OK;
 503
 504     AVIFILE_CloseCompressor(This);
 505
 506     return AVIERR_COMPRESSOR;
 507   }
 508 }
 509
 510 /***********************************************************************/