dlls/avifil32/tmpfile.c

   1 /*
   2  * Copyright 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 "wingdi.h"
  26 #include "winuser.h"
  27 #include "winnls.h"
  28 #include "winerror.h"
  29 #include "windowsx.h"
  30 #include "mmsystem.h"
  31 #include "vfw.h"
  32
  33 #include "avifile_private.h"
  34 #include "extrachunk.h"
  35
  36 #include "wine/debug.h"
  37
  38 WINE_DEFAULT_DEBUG_CHANNEL(avifile);
  39
  40 /***********************************************************************/
  41
  42 static HRESULT WINAPI ITmpFile_fnQueryInterface(IAVIFile* iface,REFIID refiid,LPVOID *obj);
  43 static ULONG   WINAPI ITmpFile_fnAddRef(IAVIFile* iface);
  44 static ULONG   WINAPI ITmpFile_fnRelease(IAVIFile* iface);
  45 static HRESULT WINAPI ITmpFile_fnInfo(IAVIFile*iface,AVIFILEINFOW*afi,LONG size);
  46 static HRESULT WINAPI ITmpFile_fnGetStream(IAVIFile*iface,PAVISTREAM*avis,DWORD fccType,LONG lParam);
  47 static HRESULT WINAPI ITmpFile_fnCreateStream(IAVIFile*iface,PAVISTREAM*avis,AVISTREAMINFOW*asi);
  48 static HRESULT WINAPI ITmpFile_fnWriteData(IAVIFile*iface,DWORD ckid,LPVOID lpData,LONG size);
  49 static HRESULT WINAPI ITmpFile_fnReadData(IAVIFile*iface,DWORD ckid,LPVOID lpData,LONG *size);
  50 static HRESULT WINAPI ITmpFile_fnEndRecord(IAVIFile*iface);
  51 static HRESULT WINAPI ITmpFile_fnDeleteStream(IAVIFile*iface,DWORD fccType,LONG lParam);
  52
  53 struct ICOM_VTABLE(IAVIFile) itmpft = {
  54   ICOM_MSVTABLE_COMPAT_DummyRTTIVALUE
  55   ITmpFile_fnQueryInterface,
  56   ITmpFile_fnAddRef,
  57   ITmpFile_fnRelease,
  58   ITmpFile_fnInfo,
  59   ITmpFile_fnGetStream,
  60   ITmpFile_fnCreateStream,
  61   ITmpFile_fnWriteData,
  62   ITmpFile_fnReadData,
  63   ITmpFile_fnEndRecord,
  64   ITmpFile_fnDeleteStream
  65 };
  66
  67 typedef struct _ITmpFileImpl {
  68   /* IUnknown stuff */
  69   ICOM_VFIELD(IAVIFile);
  70   DWORD         ref;
  71
  72   /* IAVIFile stuff */
  73   AVIFILEINFOW  fInfo;
  74   PAVISTREAM   *ppStreams;
  75 } ITmpFileImpl;
  76
  77 PAVIFILE AVIFILE_CreateAVITempFile(int nStreams, PAVISTREAM *ppStreams) {
  78   ITmpFileImpl *tmpFile;
  79   int           i;
  80
  81   tmpFile = LocalAlloc(LPTR, sizeof(ITmpFileImpl));
  82   if (tmpFile == NULL)
  83     return NULL;
  84
  85   tmpFile->lpVtbl = &itmpft;
  86   tmpFile->ref    = 1;
  87   memset(&tmpFile->fInfo, 0, sizeof(tmpFile->fInfo));
  88
  89   tmpFile->fInfo.dwStreams = nStreams;
  90   tmpFile->ppStreams = LocalAlloc(LPTR, nStreams * sizeof(PAVISTREAM));
  91   if (tmpFile->ppStreams == NULL) {
  92     LocalFree((HLOCAL)tmpFile);
  93     return NULL;
  94   }
  95
  96   for (i = 0; i < nStreams; i++) {
  97     AVISTREAMINFOW sInfo;
  98
  99     tmpFile->ppStreams[i] = ppStreams[i];
 100
 101     AVIStreamAddRef(ppStreams[i]);
 102     AVIStreamInfoW(ppStreams[i], &sInfo, sizeof(sInfo));
 103     if (i == 0) {
 104       tmpFile->fInfo.dwScale = sInfo.dwScale;
 105       tmpFile->fInfo.dwRate  = sInfo.dwRate;
 106       if (!sInfo.dwScale || !sInfo.dwRate) {
 107         tmpFile->fInfo.dwScale = 1;
 108         tmpFile->fInfo.dwRate  = 100;
 109       }
 110     }
 111
 112     if (tmpFile->fInfo.dwSuggestedBufferSize < sInfo.dwSuggestedBufferSize)
 113       tmpFile->fInfo.dwSuggestedBufferSize = sInfo.dwSuggestedBufferSize;
 114
 115     {
 116       register DWORD tmp;
 117
 118       tmp = MulDiv(AVIStreamSampleToTime(ppStreams[i], sInfo.dwLength), \
 119                    tmpFile->fInfo.dwScale, tmpFile->fInfo.dwRate * 1000);
 120       if (tmpFile->fInfo.dwLength < tmp)
 121         tmpFile->fInfo.dwLength = tmp;
 122
 123       tmp = sInfo.rcFrame.right - sInfo.rcFrame.left;
 124       if (tmpFile->fInfo.dwWidth < tmp)
 125         tmpFile->fInfo.dwWidth = tmp;
 126       tmp = sInfo.rcFrame.bottom - sInfo.rcFrame.top;
 127       if (tmpFile->fInfo.dwHeight < tmp)
 128         tmpFile->fInfo.dwHeight = tmp;
 129     }
 130   }
 131
 132   return (PAVIFILE)tmpFile;
 133 }
 134
 135 static HRESULT WINAPI ITmpFile_fnQueryInterface(IAVIFile *iface, REFIID refiid,
 136                                                 LPVOID *obj)
 137 {
 138   ICOM_THIS(ITmpFileImpl,iface);
 139
 140   TRACE("(%p,%s,%p)\n", This, debugstr_guid(refiid), obj);
 141
 142   if (IsEqualGUID(&IID_IUnknown, refiid) ||
 143       IsEqualGUID(&IID_IAVIFile, refiid)) {
 144     *obj = iface;
 145     IAVIFile_AddRef(iface);
 146
 147     return S_OK;
 148   }
 149
 150   return OLE_E_ENUM_NOMORE;
 151 }
 152
 153 static ULONG   WINAPI ITmpFile_fnAddRef(IAVIFile *iface)
 154 {
 155   ICOM_THIS(ITmpFileImpl,iface);
 156
 157   TRACE("(%p) -> %ld\n", iface, This->ref + 1);
 158   return ++(This->ref);
 159 }
 160
 161 static ULONG   WINAPI ITmpFile_fnRelease(IAVIFile *iface)
 162 {
 163   ICOM_THIS(ITmpFileImpl,iface);
 164
 165   TRACE("(%p) -> %ld\n", iface, This->ref - 1);
 166
 167   if (!--(This->ref)) {
 168     int i;
 169
 170     for (i = 0; i < This->fInfo.dwStreams; i++) {
 171       if (This->ppStreams[i] != NULL) {
 172         AVIStreamRelease(This->ppStreams[i]);
 173
 174         This->ppStreams[i] = NULL;
 175       }
 176     }
 177
 178     LocalFree((HLOCAL)This);
 179     return 0;
 180   }
 181
 182   return This->ref;
 183 }
 184
 185 static HRESULT WINAPI ITmpFile_fnInfo(IAVIFile *iface,
 186                                       AVIFILEINFOW *afi, LONG size)
 187 {
 188   ICOM_THIS(ITmpFileImpl,iface);
 189
 190   TRACE("(%p,%p,%ld)\n",iface,afi,size);
 191
 192   if (afi == NULL)
 193     return AVIERR_BADPARAM;
 194   if (size < 0)
 195     return AVIERR_BADSIZE;
 196
 197   memcpy(afi, &This->fInfo, min((DWORD)size, sizeof(This->fInfo)));
 198
 199   if ((DWORD)size < sizeof(This->fInfo))
 200     return AVIERR_BUFFERTOOSMALL;
 201   return AVIERR_OK;
 202 }
 203
 204 static HRESULT WINAPI ITmpFile_fnGetStream(IAVIFile *iface, PAVISTREAM *avis,
 205                                            DWORD fccType, LONG lParam)
 206 {
 207   ICOM_THIS(ITmpFileImpl,iface);
 208
 209   ULONG nStream = (ULONG)-1;
 210
 211   TRACE("(%p,%p,0x%08lX,%ld)\n", iface, avis, fccType, lParam);
 212
 213   if (avis == NULL || lParam < 0)
 214     return AVIERR_BADPARAM;
 215
 216   if (fccType != streamtypeANY) {
 217     /* search the number of the specified stream */
 218     ULONG i;
 219
 220     for (i = 0; i < This->fInfo.dwStreams; i++) {
 221       AVISTREAMINFOW sInfo;
 222       HRESULT        hr;
 223
 224       hr = AVIStreamInfoW(This->ppStreams[i], &sInfo, sizeof(sInfo));
 225       if (FAILED(hr))
 226         return hr;
 227
 228       if (sInfo.fccType == fccType) {
 229         if (lParam == 0) {
 230           nStream = i;
 231           break;
 232         } else
 233           lParam--;
 234       }
 235     }
 236   } else
 237     nStream = lParam;
 238
 239   /* Does the requested stream exist ? */
 240   if (nStream < This->fInfo.dwStreams && This->ppStreams[nStream] != NULL) {
 241     *avis = This->ppStreams[nStream];
 242     AVIStreamAddRef(*avis);
 243
 244     return AVIERR_OK;
 245   }
 246
 247   /* Sorry, but the specified stream doesn't exist */
 248   return AVIERR_NODATA;
 249 }
 250
 251 static HRESULT WINAPI ITmpFile_fnCreateStream(IAVIFile *iface,PAVISTREAM *avis,
 252                                               AVISTREAMINFOW *asi)
 253 {
 254   TRACE("(%p,%p,%p)\n",iface,avis,asi);
 255
 256   return AVIERR_UNSUPPORTED;
 257 }
 258
 259 static HRESULT WINAPI ITmpFile_fnWriteData(IAVIFile *iface, DWORD ckid,
 260                                            LPVOID lpData, LONG size)
 261 {
 262   TRACE("(%p,0x%08lX,%p,%ld)\n", iface, ckid, lpData, size);
 263
 264   return AVIERR_UNSUPPORTED;
 265 }
 266
 267 static HRESULT WINAPI ITmpFile_fnReadData(IAVIFile *iface, DWORD ckid,
 268                                           LPVOID lpData, LONG *size)
 269 {
 270   TRACE("(%p,0x%08lX,%p,%p)\n", iface, ckid, lpData, size);
 271
 272   return AVIERR_UNSUPPORTED;
 273 }
 274
 275 static HRESULT WINAPI ITmpFile_fnEndRecord(IAVIFile *iface)
 276 {
 277   TRACE("(%p)\n",iface);
 278
 279   return AVIERR_OK;
 280 }
 281
 282 static HRESULT WINAPI ITmpFile_fnDeleteStream(IAVIFile *iface, DWORD fccType,
 283                                               LONG lParam)
 284 {
 285   TRACE("(%p,0x%08lX,%ld)\n", iface, fccType, lParam);
 286
 287   return AVIERR_UNSUPPORTED;
 288 }