windowscodecs: Add stub IWICBitmapScaler implementation.

dlls/windowscodecs/Makefile.in

@@ -24,6 +24,7 @@ C_SRCS = \
 	propertybag.c \
 	proxy.c \
 	regsvr.c \
+	scaler.c \
 	stream.c \
 	tgaformat.c \
 	tiffformat.c \

dlls/windowscodecs/imgfactory.c

@@ -356,8 +356,9 @@ static HRESULT WINAPI ComponentFactory_CreateFormatConverter(IWICComponentFactor
 static HRESULT WINAPI ComponentFactory_CreateBitmapScaler(IWICComponentFactory *iface,
     IWICBitmapScaler **ppIBitmapScaler)
 {
-    FIXME("(%p,%p): stub\n", iface, ppIBitmapScaler);
-    return E_NOTIMPL;
+    TRACE("(%p,%p)\n", iface, ppIBitmapScaler);
+
+    return BitmapScaler_Create(ppIBitmapScaler);
 }
 
 static HRESULT WINAPI ComponentFactory_CreateBitmapClipper(IWICComponentFactory *iface,

dlls/windowscodecs/scaler.c

+/*
+ * Copyright 2010 Vincent Povirk for CodeWeavers
+ *
+ * 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 "config.h"
+
+#include <stdarg.h>
+
+#define COBJMACROS
+
+#include "windef.h"
+#include "winbase.h"
+#include "objbase.h"
+#include "wincodec.h"
+
+#include "wincodecs_private.h"
+
+#include "wine/debug.h"
+
+WINE_DEFAULT_DEBUG_CHANNEL(wincodecs);
+
+typedef struct BitmapScaler {
+    IWICBitmapScaler IWICBitmapScaler_iface;
+    LONG ref;
+} BitmapScaler;
+
+static inline BitmapScaler *impl_from_IWICBitmapScaler(IWICBitmapScaler *iface)
+{
+    return CONTAINING_RECORD(iface, BitmapScaler, IWICBitmapScaler_iface);
+}
+
+static HRESULT WINAPI BitmapScaler_QueryInterface(IWICBitmapScaler *iface, REFIID iid,
+    void **ppv)
+{
+    BitmapScaler *This = impl_from_IWICBitmapScaler(iface);
+    TRACE("(%p,%s,%p)\n", iface, debugstr_guid(iid), ppv);
+
+    if (!ppv) return E_INVALIDARG;
+
+    if (IsEqualIID(&IID_IUnknown, iid) ||
+        IsEqualIID(&IID_IWICBitmapSource, iid) ||
+        IsEqualIID(&IID_IWICBitmapScaler, iid))
+    {
+        *ppv = This;
+    }
+    else
+    {
+        *ppv = NULL;
+        return E_NOINTERFACE;
+    }
+
+    IUnknown_AddRef((IUnknown*)*ppv);
+    return S_OK;
+}
+
+static ULONG WINAPI BitmapScaler_AddRef(IWICBitmapScaler *iface)
+{
+    BitmapScaler *This = impl_from_IWICBitmapScaler(iface);
+    ULONG ref = InterlockedIncrement(&This->ref);
+
+    TRACE("(%p) refcount=%u\n", iface, ref);
+
+    return ref;
+}
+
+static ULONG WINAPI BitmapScaler_Release(IWICBitmapScaler *iface)
+{
+    BitmapScaler *This = impl_from_IWICBitmapScaler(iface);
+    ULONG ref = InterlockedDecrement(&This->ref);
+
+    TRACE("(%p) refcount=%u\n", iface, ref);
+
+    if (ref == 0)
+    {
+        HeapFree(GetProcessHeap(), 0, This);
+    }
+
+    return ref;
+}
+
+static HRESULT WINAPI BitmapScaler_GetSize(IWICBitmapScaler *iface,
+    UINT *puiWidth, UINT *puiHeight)
+{
+    FIXME("(%p,%p,%p): stub\n", iface, puiWidth, puiHeight);
+
+    return E_NOTIMPL;
+}
+
+static HRESULT WINAPI BitmapScaler_GetPixelFormat(IWICBitmapScaler *iface,
+    WICPixelFormatGUID *pPixelFormat)
+{
+    FIXME("(%p,%p): stub\n", iface, pPixelFormat);
+
+    return E_NOTIMPL;
+}
+
+static HRESULT WINAPI BitmapScaler_GetResolution(IWICBitmapScaler *iface,
+    double *pDpiX, double *pDpiY)
+{
+    FIXME("(%p,%p,%p): stub\n", iface, pDpiX, pDpiY);
+
+    return E_NOTIMPL;
+}
+
+static HRESULT WINAPI BitmapScaler_CopyPalette(IWICBitmapScaler *iface,
+    IWICPalette *pIPalette)
+{
+    FIXME("(%p,%p): stub\n", iface, pIPalette);
+
+    return E_NOTIMPL;
+}
+
+static HRESULT WINAPI BitmapScaler_CopyPixels(IWICBitmapScaler *iface,
+    const WICRect *prc, UINT cbStride, UINT cbBufferSize, BYTE *pbBuffer)
+{
+    FIXME("(%p,%p,%u,%u,%p): stub\n", iface, prc, cbStride, cbBufferSize, pbBuffer);
+
+    return E_NOTIMPL;
+}
+
+static HRESULT WINAPI BitmapScaler_Initialize(IWICBitmapScaler *iface,
+    IWICBitmapSource *pISource, UINT uiWidth, UINT uiHeight,
+    WICBitmapInterpolationMode mode)
+{
+    FIXME("(%p,%p,%u,%u,%u): stub\n", iface, pISource, uiWidth, uiHeight, mode);
+
+    return E_NOTIMPL;
+}
+
+static const IWICBitmapScalerVtbl BitmapScaler_Vtbl = {
+    BitmapScaler_QueryInterface,
+    BitmapScaler_AddRef,
+    BitmapScaler_Release,
+    BitmapScaler_GetSize,
+    BitmapScaler_GetPixelFormat,
+    BitmapScaler_GetResolution,
+    BitmapScaler_CopyPalette,
+    BitmapScaler_CopyPixels,
+    BitmapScaler_Initialize
+};
+
+HRESULT BitmapScaler_Create(IWICBitmapScaler **scaler)
+{
+    BitmapScaler *This;
+
+    This = HeapAlloc(GetProcessHeap(), 0, sizeof(BitmapScaler));
+    if (!This) return E_OUTOFMEMORY;
+
+    This->IWICBitmapScaler_iface.lpVtbl = &BitmapScaler_Vtbl;
+    This->ref = 1;
+
+    *scaler = &This->IWICBitmapScaler_iface;
+
+    return S_OK;
+}

dlls/windowscodecs/wincodecs_private.h

@@ -44,6 +44,7 @@ extern HRESULT IcnsEncoder_CreateInstance(IUnknown *pUnkOuter, REFIID iid, void*
 
 extern HRESULT TgaDecoder_CreateInstance(IUnknown *pUnkOuter, REFIID iid, void** ppv) DECLSPEC_HIDDEN;
 
+extern HRESULT BitmapScaler_Create(IWICBitmapScaler **scaler) DECLSPEC_HIDDEN;
 extern HRESULT FlipRotator_Create(IWICBitmapFlipRotator **fliprotator) DECLSPEC_HIDDEN;
 extern HRESULT PaletteImpl_Create(IWICPalette **palette) DECLSPEC_HIDDEN;
 extern HRESULT StreamImpl_Create(IWICStream **stream) DECLSPEC_HIDDEN;