windowscodecs: Add stub JPEG decoder.

dlls/windowscodecs/Makefile.in

@@ -15,6 +15,7 @@ C_SRCS = \
 	icoformat.c \
 	imgfactory.c \
 	info.c \
+	jpegformat.c \
 	main.c \
 	palette.c \
 	propertybag.c \

dlls/windowscodecs/clsfactory.c

@@ -47,6 +47,7 @@ static classinfo wic_classes[] = {
     {&CLSID_WICBmpEncoder, BmpEncoder_CreateInstance},
     {&CLSID_WICGifDecoder, GifDecoder_CreateInstance},
     {&CLSID_WICIcoDecoder, IcoDecoder_CreateInstance},
+    {&CLSID_WICJpegDecoder, JpegDecoder_CreateInstance},
     {&CLSID_WICDefaultFormatConverter, FormatConverter_CreateInstance},
     {0}};
 

dlls/windowscodecs/jpegformat.c

+/*
+ * Copyright 2009 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 "wine/port.h"
+
+#ifdef HAVE_UNISTD_H
+# include <unistd.h>
+#endif
+#include <stdarg.h>
+#include <stdio.h>
+#include <string.h>
+
+#ifdef SONAME_LIBJPEG
+/* This is a hack, so jpeglib.h does not redefine INT32 and the like*/
+#define XMD_H
+#define UINT8 JPEG_UINT8
+#define UINT16 JPEG_UINT16
+#define boolean jpeg_boolean
+#undef HAVE_STDLIB_H
+# include <jpeglib.h>
+#undef HAVE_STDLIB_H
+#define HAVE_STDLIB_H 1
+#undef UINT8
+#undef UINT16
+#undef boolean
+#endif
+
+#define COBJMACROS
+
+#include "windef.h"
+#include "winbase.h"
+#include "objbase.h"
+#include "wincodec.h"
+
+#include "wincodecs_private.h"
+
+#include "wine/debug.h"
+#include "wine/library.h"
+
+WINE_DEFAULT_DEBUG_CHANNEL(wincodecs);
+
+#ifdef SONAME_LIBJPEG
+
+static void *libjpeg_handle;
+
+#define MAKE_FUNCPTR(f) static typeof(f) * p##f
+MAKE_FUNCPTR(jpeg_std_error);
+#undef MAKE_FUNCPTR
+
+static void *load_libjpeg(void)
+{
+    if((libjpeg_handle = wine_dlopen(SONAME_LIBJPEG, RTLD_NOW, NULL, 0)) != NULL) {
+
+#define LOAD_FUNCPTR(f) \
+    if((p##f = wine_dlsym(libjpeg_handle, #f, NULL, 0)) == NULL) { \
+        libjpeg_handle = NULL; \
+        return NULL; \
+    }
+
+        LOAD_FUNCPTR(jpeg_std_error);
+#undef LOAD_FUNCPTR
+    }
+    return libjpeg_handle;
+}
+
+typedef struct {
+    const IWICBitmapDecoderVtbl *lpVtbl;
+    LONG ref;
+} JpegDecoder;
+
+static HRESULT WINAPI JpegDecoder_QueryInterface(IWICBitmapDecoder *iface, REFIID iid,
+    void **ppv)
+{
+    JpegDecoder *This = (JpegDecoder*)iface;
+    TRACE("(%p,%s,%p)\n", iface, debugstr_guid(iid), ppv);
+
+    if (!ppv) return E_INVALIDARG;
+
+    if (IsEqualIID(&IID_IUnknown, iid) || IsEqualIID(&IID_IWICBitmapDecoder, iid))
+    {
+        *ppv = This;
+    }
+    else
+    {
+        *ppv = NULL;
+        return E_NOINTERFACE;
+    }
+
+    IUnknown_AddRef((IUnknown*)*ppv);
+    return S_OK;
+}
+
+static ULONG WINAPI JpegDecoder_AddRef(IWICBitmapDecoder *iface)
+{
+    JpegDecoder *This = (JpegDecoder*)iface;
+    ULONG ref = InterlockedIncrement(&This->ref);
+
+    TRACE("(%p) refcount=%u\n", iface, ref);
+
+    return ref;
+}
+
+static ULONG WINAPI JpegDecoder_Release(IWICBitmapDecoder *iface)
+{
+    JpegDecoder *This = (JpegDecoder*)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 JpegDecoder_QueryCapability(IWICBitmapDecoder *iface, IStream *pIStream,
+    DWORD *pdwCapability)
+{
+    FIXME("(%p,%p,%p): stub\n", iface, pIStream, pdwCapability);
+    return E_NOTIMPL;
+}
+
+static HRESULT WINAPI JpegDecoder_Initialize(IWICBitmapDecoder *iface, IStream *pIStream,
+    WICDecodeOptions cacheOptions)
+{
+    FIXME("(%p,%p,%u): stub\n", iface, pIStream, cacheOptions);
+    return E_NOTIMPL;
+}
+
+static HRESULT WINAPI JpegDecoder_GetContainerFormat(IWICBitmapDecoder *iface,
+    GUID *pguidContainerFormat)
+{
+    memcpy(pguidContainerFormat, &GUID_ContainerFormatJpeg, sizeof(GUID));
+    return S_OK;
+}
+
+static HRESULT WINAPI JpegDecoder_GetDecoderInfo(IWICBitmapDecoder *iface,
+    IWICBitmapDecoderInfo **ppIDecoderInfo)
+{
+    FIXME("(%p,%p): stub\n", iface, ppIDecoderInfo);
+    return E_NOTIMPL;
+}
+
+static HRESULT WINAPI JpegDecoder_CopyPalette(IWICBitmapDecoder *iface,
+    IWICPalette *pIPalette)
+{
+    TRACE("(%p,%p)\n", iface, pIPalette);
+
+    return WINCODEC_ERR_PALETTEUNAVAILABLE;
+}
+
+static HRESULT WINAPI JpegDecoder_GetMetadataQueryReader(IWICBitmapDecoder *iface,
+    IWICMetadataQueryReader **ppIMetadataQueryReader)
+{
+    FIXME("(%p,%p): stub\n", iface, ppIMetadataQueryReader);
+    return E_NOTIMPL;
+}
+
+static HRESULT WINAPI JpegDecoder_GetPreview(IWICBitmapDecoder *iface,
+    IWICBitmapSource **ppIBitmapSource)
+{
+    FIXME("(%p,%p): stub\n", iface, ppIBitmapSource);
+    return WINCODEC_ERR_UNSUPPORTEDOPERATION;
+}
+
+static HRESULT WINAPI JpegDecoder_GetColorContexts(IWICBitmapDecoder *iface,
+    UINT cCount, IWICColorContext **ppIColorContexts, UINT *pcActualCount)
+{
+    FIXME("(%p,%u,%p,%p): stub\n", iface, cCount, ppIColorContexts, pcActualCount);
+    return WINCODEC_ERR_UNSUPPORTEDOPERATION;
+}
+
+static HRESULT WINAPI JpegDecoder_GetThumbnail(IWICBitmapDecoder *iface,
+    IWICBitmapSource **ppIThumbnail)
+{
+    FIXME("(%p,%p): stub\n", iface, ppIThumbnail);
+    return WINCODEC_ERR_CODECNOTHUMBNAIL;
+}
+
+static HRESULT WINAPI JpegDecoder_GetFrameCount(IWICBitmapDecoder *iface,
+    UINT *pCount)
+{
+    *pCount = 1;
+    return S_OK;
+}
+
+static HRESULT WINAPI JpegDecoder_GetFrame(IWICBitmapDecoder *iface,
+    UINT index, IWICBitmapFrameDecode **ppIBitmapFrame)
+{
+    FIXME("(%p,%u,%p): stub\n", iface, index, ppIBitmapFrame);
+    return E_NOTIMPL;
+}
+
+static const IWICBitmapDecoderVtbl JpegDecoder_Vtbl = {
+    JpegDecoder_QueryInterface,
+    JpegDecoder_AddRef,
+    JpegDecoder_Release,
+    JpegDecoder_QueryCapability,
+    JpegDecoder_Initialize,
+    JpegDecoder_GetContainerFormat,
+    JpegDecoder_GetDecoderInfo,
+    JpegDecoder_CopyPalette,
+    JpegDecoder_GetMetadataQueryReader,
+    JpegDecoder_GetPreview,
+    JpegDecoder_GetColorContexts,
+    JpegDecoder_GetThumbnail,
+    JpegDecoder_GetFrameCount,
+    JpegDecoder_GetFrame
+};
+
+HRESULT JpegDecoder_CreateInstance(IUnknown *pUnkOuter, REFIID iid, void** ppv)
+{
+    JpegDecoder *This;
+    HRESULT ret;
+
+    TRACE("(%p,%s,%p)\n", pUnkOuter, debugstr_guid(iid), ppv);
+
+    if (!libjpeg_handle && !load_libjpeg())
+    {
+        ERR("Failed reading JPEG because unable to find %s\n", SONAME_LIBJPEG);
+        return E_FAIL;
+    }
+
+    *ppv = NULL;
+
+    if (pUnkOuter) return CLASS_E_NOAGGREGATION;
+
+    This = HeapAlloc(GetProcessHeap(), 0, sizeof(JpegDecoder));
+    if (!This) return E_OUTOFMEMORY;
+
+    This->lpVtbl = &JpegDecoder_Vtbl;
+    This->ref = 1;
+
+    ret = IUnknown_QueryInterface((IUnknown*)This, iid, ppv);
+    IUnknown_Release((IUnknown*)This);
+
+    return ret;
+}
+
+#else /* !defined(SONAME_LIBJPEG) */
+
+HRESULT JpegDecoder_CreateInstance(IUnknown *pUnkOuter, REFIID iid, void** ppv)
+{
+    ERR("Trying to load JPEG picture, but JPEG supported not compiled in.\n");
+    return E_FAIL;
+}
+
+#endif

dlls/windowscodecs/regsvr.c

@@ -753,6 +753,12 @@ static struct regsvr_coclass const coclass_list[] = {
 	"windowscodecs.dll",
 	"Apartment"
     },
+    {   &CLSID_WICJpegDecoder,
+	"WIC JPEG Decoder",
+	NULL,
+	"windowscodecs.dll",
+	"Apartment"
+    },
     {   &CLSID_WICDefaultFormatConverter,
 	"WIC Default Format Converter",
 	NULL,
@@ -813,6 +819,19 @@ static struct decoder_pattern const ico_patterns[] = {
     {0}
 };
 
+static const BYTE jpeg_magic[] = {0xff, 0xd8, 0xff, 0xe0};
+
+static GUID const * const jpeg_formats[] = {
+    &GUID_WICPixelFormat24bppBGR,
+    &GUID_WICPixelFormat8bppGray,
+    NULL
+};
+
+static struct decoder_pattern const jpeg_patterns[] = {
+    {4,0,jpeg_magic,mask_all,0},
+    {0}
+};
+
 static struct regsvr_decoder const decoder_list[] = {
     {   &CLSID_WICBmpDecoder,
 	"The Wine Project",
@@ -844,6 +863,16 @@ static struct regsvr_decoder const decoder_list[] = {
 	ico_formats,
 	ico_patterns
     },
+    {   &CLSID_WICJpegDecoder,
+	"The Wine Project",
+	"JPEG Decoder",
+	"1.0.0.0",
+	&GUID_VendorMicrosoft,
+	"image/jpeg",
+	".jpg;.jpeg;.jfif",
+	jpeg_formats,
+	jpeg_patterns
+    },
     { NULL }			/* list terminator */
 };
 

dlls/windowscodecs/wincodecs_private.h

@@ -25,6 +25,7 @@ extern HRESULT BmpDecoder_CreateInstance(IUnknown *pUnkOuter, REFIID riid, void*
 extern HRESULT BmpEncoder_CreateInstance(IUnknown *pUnkOuter, REFIID iid, void** ppv);
 extern HRESULT GifDecoder_CreateInstance(IUnknown *pUnkOuter, REFIID riid, void** ppv);
 extern HRESULT IcoDecoder_CreateInstance(IUnknown *pUnkOuter, REFIID iid, void** ppv);
+extern HRESULT JpegDecoder_CreateInstance(IUnknown *pUnkOuter, REFIID iid, void** ppv);
 
 extern HRESULT PaletteImpl_Create(IWICPalette **palette);
 extern HRESULT StreamImpl_Create(IWICStream **stream);