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512 lines
14 KiB
C
512 lines
14 KiB
C
/*
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* Copyright 2009 Tony Wasserka
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include "wine/debug.h"
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#define COBJMACROS
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#include "windef.h"
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#include "winbase.h"
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#include "winreg.h"
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#include "objbase.h"
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#include "wincodec.h"
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#include "wincodecs_private.h"
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WINE_DEFAULT_DEBUG_CHANNEL(wincodecs);
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/******************************************
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* StreamOnMemory implementation
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*
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* Used by IWICStream_InitializeFromMemory
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*
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*/
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typedef struct StreamOnMemory {
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const IStreamVtbl *lpVtbl;
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LONG ref;
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BYTE *pbMemory;
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DWORD dwMemsize;
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DWORD dwCurPos;
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} StreamOnMemory;
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static HRESULT WINAPI StreamOnMemory_QueryInterface(IStream *iface,
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REFIID iid, void **ppv)
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{
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TRACE("(%p,%s,%p)\n", iface, debugstr_guid(iid), ppv);
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if (!ppv) return E_INVALIDARG;
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if (IsEqualIID(&IID_IUnknown, iid) || IsEqualIID(&IID_IStream, iid) ||
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IsEqualIID(&IID_ISequentialStream, iid))
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{
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*ppv = iface;
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IUnknown_AddRef((IUnknown*)*ppv);
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return S_OK;
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}
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else
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{
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*ppv = NULL;
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return E_NOINTERFACE;
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}
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}
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static ULONG WINAPI StreamOnMemory_AddRef(IStream *iface)
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{
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StreamOnMemory *This = (StreamOnMemory*)iface;
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ULONG ref = InterlockedIncrement(&This->ref);
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TRACE("(%p) refcount=%u\n", iface, ref);
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return ref;
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}
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static ULONG WINAPI StreamOnMemory_Release(IStream *iface)
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{
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StreamOnMemory *This = (StreamOnMemory*)iface;
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ULONG ref = InterlockedDecrement(&This->ref);
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TRACE("(%p) refcount=%u\n", iface, ref);
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if (ref == 0) {
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HeapFree(GetProcessHeap(), 0, This);
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}
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return ref;
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}
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static HRESULT WINAPI StreamOnMemory_Read(IStream *iface,
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void *pv, ULONG cb, ULONG *pcbRead)
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{
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StreamOnMemory *This = (StreamOnMemory*)iface;
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ULONG uBytesRead;
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TRACE("(%p)\n", This);
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if (!pv) return E_INVALIDARG;
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uBytesRead = min(cb, This->dwMemsize - This->dwCurPos);
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memcpy(pv, This->pbMemory + This->dwCurPos, uBytesRead);
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This->dwCurPos += uBytesRead;
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if (pcbRead) *pcbRead = uBytesRead;
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return S_OK;
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}
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static HRESULT WINAPI StreamOnMemory_Write(IStream *iface,
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void const *pv, ULONG cb, ULONG *pcbWritten)
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{
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StreamOnMemory *This = (StreamOnMemory*)iface;
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TRACE("(%p)\n", This);
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if (!pv) return E_INVALIDARG;
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if (cb > This->dwMemsize - This->dwCurPos) return STG_E_MEDIUMFULL;
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if (cb) {
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memcpy(This->pbMemory + This->dwCurPos, pv, cb);
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This->dwCurPos += cb;
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}
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if (pcbWritten) *pcbWritten = cb;
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return S_OK;
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}
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static HRESULT WINAPI StreamOnMemory_Seek(IStream *iface,
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LARGE_INTEGER dlibMove, DWORD dwOrigin, ULARGE_INTEGER *plibNewPosition)
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{
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StreamOnMemory *This = (StreamOnMemory*)iface;
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LARGE_INTEGER NewPosition;
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TRACE("(%p)\n", This);
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if (dwOrigin == STREAM_SEEK_SET) NewPosition.QuadPart = dlibMove.QuadPart;
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else if (dwOrigin == STREAM_SEEK_CUR) NewPosition.QuadPart = This->dwCurPos + dlibMove.QuadPart;
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else if (dwOrigin == STREAM_SEEK_END) NewPosition.QuadPart = This->dwMemsize + dlibMove.QuadPart;
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else return E_INVALIDARG;
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if (NewPosition.u.HighPart) return HRESULT_FROM_WIN32(ERROR_ARITHMETIC_OVERFLOW);
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if (NewPosition.QuadPart > This->dwMemsize) return E_INVALIDARG;
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if (NewPosition.QuadPart < 0) return E_INVALIDARG;
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This->dwCurPos = NewPosition.u.LowPart;
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if(plibNewPosition) plibNewPosition->QuadPart = This->dwCurPos;
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return S_OK;
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}
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/* SetSize isn't implemented in the native windowscodecs DLL either */
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static HRESULT WINAPI StreamOnMemory_SetSize(IStream *iface,
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ULARGE_INTEGER libNewSize)
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{
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TRACE("(%p)\n", iface);
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return E_NOTIMPL;
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}
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/* CopyTo isn't implemented in the native windowscodecs DLL either */
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static HRESULT WINAPI StreamOnMemory_CopyTo(IStream *iface,
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IStream *pstm, ULARGE_INTEGER cb, ULARGE_INTEGER *pcbRead, ULARGE_INTEGER *pcbWritten)
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{
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TRACE("(%p)\n", iface);
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return E_NOTIMPL;
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}
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/* Commit isn't implemented in the native windowscodecs DLL either */
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static HRESULT WINAPI StreamOnMemory_Commit(IStream *iface,
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DWORD grfCommitFlags)
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{
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TRACE("(%p)\n", iface);
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return E_NOTIMPL;
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}
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/* Revert isn't implemented in the native windowscodecs DLL either */
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static HRESULT WINAPI StreamOnMemory_Revert(IStream *iface)
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{
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TRACE("(%p)\n", iface);
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return E_NOTIMPL;
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}
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/* LockRegion isn't implemented in the native windowscodecs DLL either */
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static HRESULT WINAPI StreamOnMemory_LockRegion(IStream *iface,
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ULARGE_INTEGER libOffset, ULARGE_INTEGER cb, DWORD dwLockType)
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{
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TRACE("(%p)\n", iface);
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return E_NOTIMPL;
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}
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/* UnlockRegion isn't implemented in the native windowscodecs DLL either */
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static HRESULT WINAPI StreamOnMemory_UnlockRegion(IStream *iface,
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ULARGE_INTEGER libOffset, ULARGE_INTEGER cb, DWORD dwLockType)
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{
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TRACE("(%p)\n", iface);
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return E_NOTIMPL;
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}
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static HRESULT WINAPI StreamOnMemory_Stat(IStream *iface,
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STATSTG *pstatstg, DWORD grfStatFlag)
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{
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StreamOnMemory *This = (StreamOnMemory*)iface;
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TRACE("(%p)\n", This);
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if (!pstatstg) return E_INVALIDARG;
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ZeroMemory(pstatstg, sizeof(STATSTG));
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pstatstg->type = STGTY_STREAM;
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pstatstg->cbSize.QuadPart = This->dwMemsize;
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return S_OK;
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}
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/* Clone isn't implemented in the native windowscodecs DLL either */
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static HRESULT WINAPI StreamOnMemory_Clone(IStream *iface,
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IStream **ppstm)
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{
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TRACE("(%p)\n", iface);
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return E_NOTIMPL;
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}
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const IStreamVtbl StreamOnMemory_Vtbl =
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{
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/*** IUnknown methods ***/
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StreamOnMemory_QueryInterface,
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StreamOnMemory_AddRef,
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StreamOnMemory_Release,
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/*** ISequentialStream methods ***/
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StreamOnMemory_Read,
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StreamOnMemory_Write,
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/*** IStream methods ***/
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StreamOnMemory_Seek,
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StreamOnMemory_SetSize,
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StreamOnMemory_CopyTo,
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StreamOnMemory_Commit,
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StreamOnMemory_Revert,
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StreamOnMemory_LockRegion,
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StreamOnMemory_UnlockRegion,
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StreamOnMemory_Stat,
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StreamOnMemory_Clone,
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};
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/******************************************
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* IWICStream implementation
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*
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*/
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typedef struct IWICStreamImpl
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{
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const IWICStreamVtbl *lpVtbl;
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LONG ref;
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IStream *pStream;
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} IWICStreamImpl;
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static HRESULT WINAPI IWICStreamImpl_QueryInterface(IWICStream *iface,
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REFIID iid, void **ppv)
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{
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IWICStreamImpl *This = (IWICStreamImpl*)iface;
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TRACE("(%p,%s,%p)\n", iface, debugstr_guid(iid), ppv);
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if (!ppv) return E_INVALIDARG;
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if (IsEqualIID(&IID_IUnknown, iid) || IsEqualIID(&IID_IStream, iid) ||
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IsEqualIID(&IID_ISequentialStream, iid) || IsEqualIID(&IID_IWICStream, iid))
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{
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*ppv = This;
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IUnknown_AddRef((IUnknown*)*ppv);
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return S_OK;
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}
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else
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{
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*ppv = NULL;
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return E_NOINTERFACE;
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}
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}
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static ULONG WINAPI IWICStreamImpl_AddRef(IWICStream *iface)
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{
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IWICStreamImpl *This = (IWICStreamImpl*)iface;
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ULONG ref = InterlockedIncrement(&This->ref);
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TRACE("(%p) refcount=%u\n", iface, ref);
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return ref;
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}
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static ULONG WINAPI IWICStreamImpl_Release(IWICStream *iface)
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{
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IWICStreamImpl *This = (IWICStreamImpl*)iface;
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ULONG ref = InterlockedDecrement(&This->ref);
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TRACE("(%p) refcount=%u\n", iface, ref);
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if (ref == 0) {
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if (This->pStream) IStream_Release(This->pStream);
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HeapFree(GetProcessHeap(), 0, This);
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}
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return ref;
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}
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static HRESULT WINAPI IWICStreamImpl_Read(IWICStream *iface,
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void *pv, ULONG cb, ULONG *pcbRead)
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{
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IWICStreamImpl *This = (IWICStreamImpl*)iface;
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TRACE("(%p): relay\n", This);
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if (!This->pStream) return WINCODEC_ERR_NOTINITIALIZED;
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return IStream_Read(This->pStream, pv, cb, pcbRead);
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}
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static HRESULT WINAPI IWICStreamImpl_Write(IWICStream *iface,
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void const *pv, ULONG cb, ULONG *pcbWritten)
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{
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IWICStreamImpl *This = (IWICStreamImpl*)iface;
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TRACE("(%p): relay\n", This);
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if (!This->pStream) return WINCODEC_ERR_NOTINITIALIZED;
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return IStream_Write(This->pStream, pv, cb, pcbWritten);
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}
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static HRESULT WINAPI IWICStreamImpl_Seek(IWICStream *iface,
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LARGE_INTEGER dlibMove, DWORD dwOrigin, ULARGE_INTEGER *plibNewPosition)
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{
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IWICStreamImpl *This = (IWICStreamImpl*)iface;
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TRACE("(%p): relay\n", This);
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if (!This->pStream) return WINCODEC_ERR_NOTINITIALIZED;
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return IStream_Seek(This->pStream, dlibMove, dwOrigin, plibNewPosition);
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}
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static HRESULT WINAPI IWICStreamImpl_SetSize(IWICStream *iface,
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ULARGE_INTEGER libNewSize)
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{
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IWICStreamImpl *This = (IWICStreamImpl*)iface;
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TRACE("(%p): relay\n", This);
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if (!This->pStream) return WINCODEC_ERR_NOTINITIALIZED;
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return IStream_SetSize(This->pStream, libNewSize);
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}
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static HRESULT WINAPI IWICStreamImpl_CopyTo(IWICStream *iface,
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IStream *pstm, ULARGE_INTEGER cb, ULARGE_INTEGER *pcbRead, ULARGE_INTEGER *pcbWritten)
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{
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IWICStreamImpl *This = (IWICStreamImpl*)iface;
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TRACE("(%p): relay\n", This);
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if (!This->pStream) return WINCODEC_ERR_NOTINITIALIZED;
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return IStream_CopyTo(This->pStream, pstm, cb, pcbRead, pcbWritten);
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}
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static HRESULT WINAPI IWICStreamImpl_Commit(IWICStream *iface,
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DWORD grfCommitFlags)
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{
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IWICStreamImpl *This = (IWICStreamImpl*)iface;
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TRACE("(%p): relay\n", This);
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if (!This->pStream) return WINCODEC_ERR_NOTINITIALIZED;
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return IStream_Commit(This->pStream, grfCommitFlags);
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}
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static HRESULT WINAPI IWICStreamImpl_Revert(IWICStream *iface)
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{
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IWICStreamImpl *This = (IWICStreamImpl*)iface;
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TRACE("(%p): relay\n", This);
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if (!This->pStream) return WINCODEC_ERR_NOTINITIALIZED;
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return IStream_Revert(This->pStream);
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}
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static HRESULT WINAPI IWICStreamImpl_LockRegion(IWICStream *iface,
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ULARGE_INTEGER libOffset, ULARGE_INTEGER cb, DWORD dwLockType)
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{
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IWICStreamImpl *This = (IWICStreamImpl*)iface;
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TRACE("(%p): relay\n", This);
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if (!This->pStream) return WINCODEC_ERR_NOTINITIALIZED;
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return IStream_LockRegion(This->pStream, libOffset, cb, dwLockType);
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}
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static HRESULT WINAPI IWICStreamImpl_UnlockRegion(IWICStream *iface,
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ULARGE_INTEGER libOffset, ULARGE_INTEGER cb, DWORD dwLockType)
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{
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IWICStreamImpl *This = (IWICStreamImpl*)iface;
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TRACE("(%p): relay\n", This);
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if (!This->pStream) return WINCODEC_ERR_NOTINITIALIZED;
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return IStream_UnlockRegion(This->pStream, libOffset, cb, dwLockType);
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}
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static HRESULT WINAPI IWICStreamImpl_Stat(IWICStream *iface,
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STATSTG *pstatstg, DWORD grfStatFlag)
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{
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IWICStreamImpl *This = (IWICStreamImpl*)iface;
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TRACE("(%p): relay\n", This);
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if (!This->pStream) return WINCODEC_ERR_NOTINITIALIZED;
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return IStream_Stat(This->pStream, pstatstg, grfStatFlag);
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}
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static HRESULT WINAPI IWICStreamImpl_Clone(IWICStream *iface,
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IStream **ppstm)
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{
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IWICStreamImpl *This = (IWICStreamImpl*)iface;
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TRACE("(%p): relay\n", This);
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if (!This->pStream) return WINCODEC_ERR_NOTINITIALIZED;
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return IStream_Clone(This->pStream, ppstm);
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}
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static HRESULT WINAPI IWICStreamImpl_InitializeFromIStream(IWICStream *iface,
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IStream *pIStream)
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{
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FIXME("(%p): stub\n", iface);
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return E_NOTIMPL;
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}
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static HRESULT WINAPI IWICStreamImpl_InitializeFromFilename(IWICStream *iface,
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LPCWSTR wzFileName, DWORD dwDesiredAccess)
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{
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FIXME("(%p): stub\n", iface);
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return E_NOTIMPL;
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}
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/******************************************
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* IWICStream_InitializeFromMemory
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*
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* Initializes the internal IStream object to retrieve its data from a memory chunk.
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*
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* PARAMS
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* pbBuffer [I] pointer to the memory chunk
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* cbBufferSize [I] number of bytes to use from the memory chunk
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*
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* RETURNS
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* SUCCESS: S_OK
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* FAILURE: E_INVALIDARG, if pbBuffer is NULL
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* E_OUTOFMEMORY, if we run out of memory
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* WINCODEC_ERR_WRONGSTATE, if the IStream object has already been initialized before
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*
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*/
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static HRESULT WINAPI IWICStreamImpl_InitializeFromMemory(IWICStream *iface,
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BYTE *pbBuffer, DWORD cbBufferSize)
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{
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IWICStreamImpl *This = (IWICStreamImpl*)iface;
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StreamOnMemory *pObject;
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TRACE("(%p,%p)\n", iface, pbBuffer);
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if (!pbBuffer) return E_INVALIDARG;
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if (This->pStream) return WINCODEC_ERR_WRONGSTATE;
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pObject = HeapAlloc(GetProcessHeap(), 0, sizeof(StreamOnMemory));
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if (!pObject) return E_OUTOFMEMORY;
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pObject->lpVtbl = &StreamOnMemory_Vtbl;
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pObject->ref = 1;
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pObject->pbMemory = pbBuffer;
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pObject->dwMemsize = cbBufferSize;
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pObject->dwCurPos = 0;
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This->pStream = (IStream*)pObject;
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return S_OK;
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}
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static HRESULT WINAPI IWICStreamImpl_InitializeFromIStreamRegion(IWICStream *iface,
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IStream *pIStream, ULARGE_INTEGER ulOffset, ULARGE_INTEGER ulMaxSize)
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{
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FIXME("(%p): stub\n", iface);
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return E_NOTIMPL;
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}
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const IWICStreamVtbl WICStream_Vtbl =
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{
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/*** IUnknown methods ***/
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IWICStreamImpl_QueryInterface,
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IWICStreamImpl_AddRef,
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IWICStreamImpl_Release,
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/*** ISequentialStream methods ***/
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IWICStreamImpl_Read,
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IWICStreamImpl_Write,
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/*** IStream methods ***/
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IWICStreamImpl_Seek,
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IWICStreamImpl_SetSize,
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IWICStreamImpl_CopyTo,
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IWICStreamImpl_Commit,
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IWICStreamImpl_Revert,
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IWICStreamImpl_LockRegion,
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IWICStreamImpl_UnlockRegion,
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IWICStreamImpl_Stat,
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IWICStreamImpl_Clone,
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/*** IWICStream methods ***/
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IWICStreamImpl_InitializeFromIStream,
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IWICStreamImpl_InitializeFromFilename,
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IWICStreamImpl_InitializeFromMemory,
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IWICStreamImpl_InitializeFromIStreamRegion,
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};
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HRESULT StreamImpl_Create(IWICStream **stream)
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{
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IWICStreamImpl *pObject;
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if( !stream ) return E_INVALIDARG;
|
|
|
|
pObject = HeapAlloc(GetProcessHeap(), 0, sizeof(IWICStreamImpl));
|
|
if( !pObject ) {
|
|
*stream = NULL;
|
|
return E_OUTOFMEMORY;
|
|
}
|
|
|
|
pObject->lpVtbl = &WICStream_Vtbl;
|
|
pObject->ref = 1;
|
|
pObject->pStream = NULL;
|
|
|
|
*stream = (IWICStream*)pObject;
|
|
|
|
return S_OK;
|
|
}
|