381 lines
9.3 KiB
C
381 lines
9.3 KiB
C
/*
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* Copyright 2012 Vincent Povirk for CodeWeavers
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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 "config.h"
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#include <stdarg.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 "objbase.h"
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#include "wincodec.h"
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#include "wincodecs_private.h"
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#include "wine/debug.h"
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WINE_DEFAULT_DEBUG_CHANNEL(wincodecs);
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typedef struct BitmapImpl {
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IWICBitmap IWICBitmap_iface;
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LONG ref;
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IWICPalette *palette;
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int palette_set;
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LONG lock; /* 0 if not locked, -1 if locked for writing, count if locked for reading */
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} BitmapImpl;
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typedef struct BitmapLockImpl {
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IWICBitmapLock IWICBitmapLock_iface;
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LONG ref;
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BitmapImpl *parent;
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} BitmapLockImpl;
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static inline BitmapImpl *impl_from_IWICBitmap(IWICBitmap *iface)
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{
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return CONTAINING_RECORD(iface, BitmapImpl, IWICBitmap_iface);
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}
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static inline BitmapLockImpl *impl_from_IWICBitmapLock(IWICBitmapLock *iface)
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{
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return CONTAINING_RECORD(iface, BitmapLockImpl, IWICBitmapLock_iface);
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}
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static BOOL BitmapImpl_AcquireLock(BitmapImpl *This, int write)
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{
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if (write)
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{
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return 0 == InterlockedCompareExchange(&This->lock, -1, 0);
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}
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else
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{
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while (1)
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{
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LONG prev_val = This->lock;
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if (prev_val == -1)
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return FALSE;
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if (prev_val == InterlockedCompareExchange(&This->lock, prev_val+1, prev_val))
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return TRUE;
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}
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}
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}
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static void BitmapImpl_ReleaseLock(BitmapImpl *This)
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{
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while (1)
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{
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LONG prev_val = This->lock, new_val;
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if (prev_val == -1)
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new_val = 0;
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else
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new_val = prev_val - 1;
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if (prev_val == InterlockedCompareExchange(&This->lock, new_val, prev_val))
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break;
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}
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}
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static HRESULT WINAPI BitmapLockImpl_QueryInterface(IWICBitmapLock *iface, REFIID iid,
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void **ppv)
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{
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BitmapLockImpl *This = impl_from_IWICBitmapLock(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) ||
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IsEqualIID(&IID_IWICBitmapLock, iid))
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{
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*ppv = &This->IWICBitmapLock_iface;
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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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IUnknown_AddRef((IUnknown*)*ppv);
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return S_OK;
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}
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static ULONG WINAPI BitmapLockImpl_AddRef(IWICBitmapLock *iface)
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{
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BitmapLockImpl *This = impl_from_IWICBitmapLock(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 BitmapLockImpl_Release(IWICBitmapLock *iface)
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{
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BitmapLockImpl *This = impl_from_IWICBitmapLock(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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{
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BitmapImpl_ReleaseLock(This->parent);
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IWICBitmap_Release(&This->parent->IWICBitmap_iface);
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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 BitmapLockImpl_GetSize(IWICBitmapLock *iface,
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UINT *puiWidth, UINT *puiHeight)
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{
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FIXME("(%p,%p,%p)\n", iface, puiWidth, puiHeight);
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return E_NOTIMPL;
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}
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static HRESULT WINAPI BitmapLockImpl_GetStride(IWICBitmapLock *iface,
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UINT *pcbStride)
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{
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FIXME("(%p,%p)\n", iface, pcbStride);
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return E_NOTIMPL;
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}
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static HRESULT WINAPI BitmapLockImpl_GetDataPointer(IWICBitmapLock *iface,
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UINT *pcbBufferSize, BYTE **ppbData)
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{
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FIXME("(%p,%p,%p)\n", iface, pcbBufferSize, ppbData);
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return E_NOTIMPL;
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}
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static HRESULT WINAPI BitmapLockImpl_GetPixelFormat(IWICBitmapLock *iface,
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WICPixelFormatGUID *pPixelFormat)
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{
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FIXME("(%p,%p)\n", iface, pPixelFormat);
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return E_NOTIMPL;
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}
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static const IWICBitmapLockVtbl BitmapLockImpl_Vtbl = {
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BitmapLockImpl_QueryInterface,
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BitmapLockImpl_AddRef,
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BitmapLockImpl_Release,
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BitmapLockImpl_GetSize,
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BitmapLockImpl_GetStride,
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BitmapLockImpl_GetDataPointer,
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BitmapLockImpl_GetPixelFormat
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};
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static HRESULT WINAPI BitmapImpl_QueryInterface(IWICBitmap *iface, REFIID iid,
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void **ppv)
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{
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BitmapImpl *This = impl_from_IWICBitmap(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) ||
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IsEqualIID(&IID_IWICBitmapSource, iid) ||
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IsEqualIID(&IID_IWICBitmap, iid))
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{
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*ppv = &This->IWICBitmap_iface;
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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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IUnknown_AddRef((IUnknown*)*ppv);
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return S_OK;
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}
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static ULONG WINAPI BitmapImpl_AddRef(IWICBitmap *iface)
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{
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BitmapImpl *This = impl_from_IWICBitmap(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 BitmapImpl_Release(IWICBitmap *iface)
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{
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BitmapImpl *This = impl_from_IWICBitmap(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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{
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if (This->palette) IWICPalette_Release(This->palette);
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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 BitmapImpl_GetSize(IWICBitmap *iface,
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UINT *puiWidth, UINT *puiHeight)
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{
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FIXME("(%p,%p,%p)\n", iface, puiWidth, puiHeight);
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return E_NOTIMPL;
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}
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static HRESULT WINAPI BitmapImpl_GetPixelFormat(IWICBitmap *iface,
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WICPixelFormatGUID *pPixelFormat)
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{
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FIXME("(%p,%p)\n", iface, pPixelFormat);
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return E_NOTIMPL;
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}
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static HRESULT WINAPI BitmapImpl_GetResolution(IWICBitmap *iface,
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double *pDpiX, double *pDpiY)
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{
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FIXME("(%p,%p,%p)\n", iface, pDpiX, pDpiY);
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return E_NOTIMPL;
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}
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static HRESULT WINAPI BitmapImpl_CopyPalette(IWICBitmap *iface,
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IWICPalette *pIPalette)
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{
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BitmapImpl *This = impl_from_IWICBitmap(iface);
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TRACE("(%p,%p)\n", iface, pIPalette);
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if (!This->palette_set)
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return WINCODEC_ERR_PALETTEUNAVAILABLE;
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return IWICPalette_InitializeFromPalette(pIPalette, This->palette);
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}
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static HRESULT WINAPI BitmapImpl_CopyPixels(IWICBitmap *iface,
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const WICRect *prc, UINT cbStride, UINT cbBufferSize, BYTE *pbBuffer)
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{
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FIXME("(%p,%p,%u,%u,%p)\n", iface, prc, cbStride, cbBufferSize, pbBuffer);
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return E_NOTIMPL;
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}
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static HRESULT WINAPI BitmapImpl_Lock(IWICBitmap *iface, const WICRect *prcLock,
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DWORD flags, IWICBitmapLock **ppILock)
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{
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BitmapImpl *This = impl_from_IWICBitmap(iface);
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BitmapLockImpl *result;
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TRACE("(%p,%p,%x,%p)\n", iface, prcLock, flags, ppILock);
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if (!(flags & (WICBitmapLockRead|WICBitmapLockWrite)) || !ppILock)
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return E_INVALIDARG;
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result = HeapAlloc(GetProcessHeap(), 0, sizeof(BitmapLockImpl));
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if (!result)
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return E_OUTOFMEMORY;
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if (!BitmapImpl_AcquireLock(This, flags & WICBitmapLockWrite))
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{
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HeapFree(GetProcessHeap(), 0, result);
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return WINCODEC_ERR_ALREADYLOCKED;
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}
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result->IWICBitmapLock_iface.lpVtbl = &BitmapLockImpl_Vtbl;
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result->ref = 1;
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result->parent = This;
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IWICBitmap_AddRef(&This->IWICBitmap_iface);
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*ppILock = &result->IWICBitmapLock_iface;
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return S_OK;
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}
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static HRESULT WINAPI BitmapImpl_SetPalette(IWICBitmap *iface, IWICPalette *pIPalette)
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{
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BitmapImpl *This = impl_from_IWICBitmap(iface);
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HRESULT hr;
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TRACE("(%p,%p)\n", iface, pIPalette);
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if (!This->palette)
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{
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IWICPalette *new_palette;
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hr = PaletteImpl_Create(&new_palette);
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if (FAILED(hr)) return hr;
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if (InterlockedCompareExchangePointer((void**)&This->palette, new_palette, NULL))
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{
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/* someone beat us to it */
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IWICPalette_Release(new_palette);
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}
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}
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hr = IWICPalette_InitializeFromPalette(This->palette, pIPalette);
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if (SUCCEEDED(hr))
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This->palette_set = 1;
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return S_OK;
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}
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static HRESULT WINAPI BitmapImpl_SetResolution(IWICBitmap *iface,
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double dpiX, double dpiY)
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{
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FIXME("(%p,%f,%f)\n", iface, dpiX, dpiY);
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return E_NOTIMPL;
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}
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static const IWICBitmapVtbl BitmapImpl_Vtbl = {
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BitmapImpl_QueryInterface,
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BitmapImpl_AddRef,
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BitmapImpl_Release,
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BitmapImpl_GetSize,
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BitmapImpl_GetPixelFormat,
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BitmapImpl_GetResolution,
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BitmapImpl_CopyPalette,
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BitmapImpl_CopyPixels,
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BitmapImpl_Lock,
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BitmapImpl_SetPalette,
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BitmapImpl_SetResolution
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};
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HRESULT BitmapImpl_Create(UINT uiWidth, UINT uiHeight,
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REFWICPixelFormatGUID pixelFormat, WICBitmapCreateCacheOption option,
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IWICBitmap **ppIBitmap)
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{
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BitmapImpl *This;
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This = HeapAlloc(GetProcessHeap(), 0, sizeof(BitmapImpl));
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if (!This) return E_OUTOFMEMORY;
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This->IWICBitmap_iface.lpVtbl = &BitmapImpl_Vtbl;
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This->ref = 1;
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This->palette = NULL;
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This->palette_set = 0;
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This->lock = 0;
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*ppIBitmap = &This->IWICBitmap_iface;
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return S_OK;
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}
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