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