Sweden-Number/dlls/avifil32/tmpfile.c

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/*
* Copyright 2003 Michael Günnewig
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <stdarg.h>
#include "windef.h"
#include "winbase.h"
#include "wingdi.h"
#include "winuser.h"
#include "winerror.h"
#include "vfw.h"
#include "avifile_private.h"
#include "extrachunk.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(avifile);
/***********************************************************************/
typedef struct _ITmpFileImpl {
IAVIFile IAVIFile_iface;
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LONG ref;
AVIFILEINFOW fInfo;
PAVISTREAM *ppStreams;
} ITmpFileImpl;
static inline ITmpFileImpl *impl_from_IAVIFile(IAVIFile *iface)
{
return CONTAINING_RECORD(iface, ITmpFileImpl, IAVIFile_iface);
}
static HRESULT WINAPI ITmpFile_fnQueryInterface(IAVIFile *iface, REFIID refiid,
LPVOID *obj)
{
ITmpFileImpl *This = impl_from_IAVIFile(iface);
TRACE("(%p,%s,%p)\n", This, debugstr_guid(refiid), obj);
if (IsEqualGUID(&IID_IUnknown, refiid) ||
IsEqualGUID(&IID_IAVIFile, refiid)) {
*obj = iface;
IAVIFile_AddRef(iface);
return S_OK;
}
return OLE_E_ENUM_NOMORE;
}
static ULONG WINAPI ITmpFile_fnAddRef(IAVIFile *iface)
{
ITmpFileImpl *This = impl_from_IAVIFile(iface);
ULONG ref = InterlockedIncrement(&This->ref);
TRACE("(%p) -> %ld\n", iface, ref);
return ref;
}
static ULONG WINAPI ITmpFile_fnRelease(IAVIFile *iface)
{
ITmpFileImpl *This = impl_from_IAVIFile(iface);
ULONG ref = InterlockedDecrement(&This->ref);
TRACE("(%p) -> %ld\n", iface, ref);
if (!ref) {
unsigned int i;
for (i = 0; i < This->fInfo.dwStreams; i++) {
if (This->ppStreams[i] != NULL) {
AVIStreamRelease(This->ppStreams[i]);
This->ppStreams[i] = NULL;
}
}
HeapFree(GetProcessHeap(), 0, This);
}
return ref;
}
static HRESULT WINAPI ITmpFile_fnInfo(IAVIFile *iface,
AVIFILEINFOW *afi, LONG size)
{
ITmpFileImpl *This = impl_from_IAVIFile(iface);
TRACE("(%p,%p,%ld)\n",iface,afi,size);
if (afi == NULL)
return AVIERR_BADPARAM;
if (size < 0)
return AVIERR_BADSIZE;
memcpy(afi, &This->fInfo, min((DWORD)size, sizeof(This->fInfo)));
if ((DWORD)size < sizeof(This->fInfo))
return AVIERR_BUFFERTOOSMALL;
return AVIERR_OK;
}
static HRESULT WINAPI ITmpFile_fnGetStream(IAVIFile *iface, PAVISTREAM *avis,
DWORD fccType, LONG lParam)
{
ITmpFileImpl *This = impl_from_IAVIFile(iface);
ULONG nStream = (ULONG)-1;
TRACE("(%p,%p,0x%08lX,%ld)\n", iface, avis, fccType, lParam);
if (avis == NULL || lParam < 0)
return AVIERR_BADPARAM;
if (fccType != streamtypeANY) {
/* search the number of the specified stream */
ULONG i;
for (i = 0; i < This->fInfo.dwStreams; i++) {
AVISTREAMINFOW sInfo;
HRESULT hr;
hr = AVIStreamInfoW(This->ppStreams[i], &sInfo, sizeof(sInfo));
if (FAILED(hr))
return hr;
if (sInfo.fccType == fccType) {
if (lParam == 0) {
nStream = i;
break;
} else
lParam--;
}
}
} else
nStream = lParam;
/* Does the requested stream exist ? */
if (nStream < This->fInfo.dwStreams && This->ppStreams[nStream] != NULL) {
*avis = This->ppStreams[nStream];
AVIStreamAddRef(*avis);
return AVIERR_OK;
}
/* Sorry, but the specified stream doesn't exist */
return AVIERR_NODATA;
}
static HRESULT WINAPI ITmpFile_fnCreateStream(IAVIFile *iface,PAVISTREAM *avis,
AVISTREAMINFOW *asi)
{
TRACE("(%p,%p,%p)\n",iface,avis,asi);
return AVIERR_UNSUPPORTED;
}
static HRESULT WINAPI ITmpFile_fnWriteData(IAVIFile *iface, DWORD ckid,
LPVOID lpData, LONG size)
{
TRACE("(%p,0x%08lX,%p,%ld)\n", iface, ckid, lpData, size);
return AVIERR_UNSUPPORTED;
}
static HRESULT WINAPI ITmpFile_fnReadData(IAVIFile *iface, DWORD ckid,
LPVOID lpData, LONG *size)
{
TRACE("(%p,0x%08lX,%p,%p)\n", iface, ckid, lpData, size);
return AVIERR_UNSUPPORTED;
}
static HRESULT WINAPI ITmpFile_fnEndRecord(IAVIFile *iface)
{
TRACE("(%p)\n",iface);
return AVIERR_OK;
}
static HRESULT WINAPI ITmpFile_fnDeleteStream(IAVIFile *iface, DWORD fccType,
LONG lParam)
{
TRACE("(%p,0x%08lX,%ld)\n", iface, fccType, lParam);
return AVIERR_UNSUPPORTED;
}
static const struct IAVIFileVtbl itmpft = {
ITmpFile_fnQueryInterface,
ITmpFile_fnAddRef,
ITmpFile_fnRelease,
ITmpFile_fnInfo,
ITmpFile_fnGetStream,
ITmpFile_fnCreateStream,
ITmpFile_fnWriteData,
ITmpFile_fnReadData,
ITmpFile_fnEndRecord,
ITmpFile_fnDeleteStream
};
PAVIFILE AVIFILE_CreateAVITempFile(int nStreams, const PAVISTREAM *ppStreams)
{
ITmpFileImpl *tmpFile;
int i;
tmpFile = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(ITmpFileImpl));
if (tmpFile == NULL)
return NULL;
tmpFile->IAVIFile_iface.lpVtbl = &itmpft;
tmpFile->ref = 1;
memset(&tmpFile->fInfo, 0, sizeof(tmpFile->fInfo));
tmpFile->fInfo.dwStreams = nStreams;
tmpFile->ppStreams = HeapAlloc(GetProcessHeap(), 0, nStreams * sizeof(PAVISTREAM));
if (tmpFile->ppStreams == NULL) {
HeapFree(GetProcessHeap(), 0, tmpFile);
return NULL;
}
for (i = 0; i < nStreams; i++) {
AVISTREAMINFOW sInfo;
tmpFile->ppStreams[i] = ppStreams[i];
AVIStreamAddRef(ppStreams[i]);
AVIStreamInfoW(ppStreams[i], &sInfo, sizeof(sInfo));
if (i == 0) {
tmpFile->fInfo.dwScale = sInfo.dwScale;
tmpFile->fInfo.dwRate = sInfo.dwRate;
if (!sInfo.dwScale || !sInfo.dwRate) {
tmpFile->fInfo.dwScale = 1;
tmpFile->fInfo.dwRate = 100;
}
}
if (tmpFile->fInfo.dwSuggestedBufferSize < sInfo.dwSuggestedBufferSize)
tmpFile->fInfo.dwSuggestedBufferSize = sInfo.dwSuggestedBufferSize;
{
DWORD tmp;
tmp = MulDiv(AVIStreamSampleToTime(ppStreams[i], sInfo.dwLength),
tmpFile->fInfo.dwScale, tmpFile->fInfo.dwRate * 1000);
if (tmpFile->fInfo.dwLength < tmp)
tmpFile->fInfo.dwLength = tmp;
tmp = sInfo.rcFrame.right - sInfo.rcFrame.left;
if (tmpFile->fInfo.dwWidth < tmp)
tmpFile->fInfo.dwWidth = tmp;
tmp = sInfo.rcFrame.bottom - sInfo.rcFrame.top;
if (tmpFile->fInfo.dwHeight < tmp)
tmpFile->fInfo.dwHeight = tmp;
}
}
return &tmpFile->IAVIFile_iface;
}