windowscodecs: Implement Logical Screen Descriptor metadata reader.

dlls/windowscodecs/clsfactory.c

@@ -62,6 +62,7 @@ static const classinfo wic_classes[] = {
     {&CLSID_WICUnknownMetadataReader, UnknownMetadataReader_CreateInstance},
     {&CLSID_WICIfdMetadataReader, IfdMetadataReader_CreateInstance},
     {&CLSID_WICPngTextMetadataReader, PngTextReader_CreateInstance},
+    {&CLSID_WICLSDMetadataReader, LSDReader_CreateInstance},
     {0}};
 
 typedef struct {

dlls/windowscodecs/gifformat.c

@@ -21,11 +21,13 @@
 #include <stdarg.h>
 
 #define COBJMACROS
+#define NONAMELESSUNION
 
 #include "windef.h"
 #include "winbase.h"
 #include "objbase.h"
 #include "wincodec.h"
+#include "wincodecsdk.h"
 
 #include "ungif.h"
 
@@ -35,6 +37,115 @@
 
 WINE_DEFAULT_DEBUG_CHANNEL(wincodecs);
 
+static LPWSTR strdupAtoW(const char *src)
+{
+    int len = MultiByteToWideChar(CP_ACP, 0, src, -1, NULL, 0);
+    LPWSTR dst = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR));
+    if (dst) MultiByteToWideChar(CP_ACP, 0, src, -1, dst, len);
+    return dst;
+}
+
+static HRESULT load_LSD_metadata(IStream *stream, const GUID *vendor, DWORD options,
+                                 MetadataItem **items, DWORD *count)
+{
+    struct logical_screen_descriptor
+    {
+        char signature[6];
+        USHORT width;
+        USHORT height;
+        BYTE packed;
+        /* global_color_table_flag : 1;
+         * color_resolution : 3;
+         * sort_flag : 1;
+         * global_color_table_size : 3;
+         */
+        BYTE background_color_index;
+        BYTE pixel_aspect_ratio;
+    } lsd_data;
+    HRESULT hr;
+    ULONG bytesread, i;
+    MetadataItem *result;
+
+    *items = NULL;
+    *count = 0;
+
+    hr = IStream_Read(stream, &lsd_data, sizeof(lsd_data), &bytesread);
+    if (FAILED(hr) || bytesread != sizeof(lsd_data)) return S_OK;
+
+    result = HeapAlloc(GetProcessHeap(), 0, sizeof(MetadataItem) * 9);
+    if (!result) return E_OUTOFMEMORY;
+
+    for (i = 0; i < 9; i++)
+    {
+        PropVariantInit(&result[i].schema);
+        PropVariantInit(&result[i].id);
+        PropVariantInit(&result[i].value);
+    }
+
+    result[0].id.vt = VT_LPWSTR;
+    result[0].id.u.pwszVal = strdupAtoW("Signature");
+    result[0].value.vt = VT_UI1|VT_VECTOR;
+    result[0].value.u.caub.cElems = 6;
+    result[0].value.u.caub.pElems = HeapAlloc(GetProcessHeap(), 0, sizeof(lsd_data.signature));
+    memcpy(result[0].value.u.caub.pElems, lsd_data.signature, sizeof(lsd_data.signature));
+
+    result[1].id.vt = VT_LPWSTR;
+    result[1].id.u.pwszVal = strdupAtoW("Width");
+    result[1].value.vt = VT_UI2;
+    result[1].value.u.uiVal = lsd_data.width;
+
+    result[2].id.vt = VT_LPWSTR;
+    result[2].id.u.pwszVal = strdupAtoW("Height");
+    result[2].value.vt = VT_UI2;
+    result[2].value.u.uiVal = lsd_data.height;
+
+    result[3].id.vt = VT_LPWSTR;
+    result[3].id.u.pwszVal = strdupAtoW("GlobalColorTableFlag");
+    result[3].value.vt = VT_BOOL;
+    result[3].value.u.boolVal = (lsd_data.packed >> 7) & 1;
+
+    result[4].id.vt = VT_LPWSTR;
+    result[4].id.u.pwszVal = strdupAtoW("ColorResolution");
+    result[4].value.vt = VT_UI1;
+    result[4].value.u.bVal = (lsd_data.packed >> 6) & 7;
+
+    result[5].id.vt = VT_LPWSTR;
+    result[5].id.u.pwszVal = strdupAtoW("SortFlag");
+    result[5].value.vt = VT_BOOL;
+    result[5].value.u.boolVal = (lsd_data.packed >> 3) & 1;
+
+    result[6].id.vt = VT_LPWSTR;
+    result[6].id.u.pwszVal = strdupAtoW("GlobalColorTableSize");
+    result[6].value.vt = VT_UI1;
+    result[6].value.u.bVal = lsd_data.packed & 7;
+
+    result[7].id.vt = VT_LPWSTR;
+    result[7].id.u.pwszVal = strdupAtoW("BackgroundColorIndex");
+    result[7].value.vt = VT_UI1;
+    result[7].value.u.bVal = lsd_data.background_color_index;
+
+    result[8].id.vt = VT_LPWSTR;
+    result[8].id.u.pwszVal = strdupAtoW("PixelAspectRatio");
+    result[8].value.vt = VT_UI1;
+    result[8].value.u.bVal = lsd_data.pixel_aspect_ratio;
+
+    *items = result;
+    *count = 9;
+
+    return S_OK;
+}
+
+static const MetadataHandlerVtbl LSDReader_Vtbl = {
+    0,
+    &CLSID_WICLSDMetadataReader,
+    load_LSD_metadata
+};
+
+HRESULT LSDReader_CreateInstance(IUnknown *pUnkOuter, REFIID iid, void **ppv)
+{
+    return MetadataReader_Create(&LSDReader_Vtbl, pUnkOuter, iid, ppv);
+}
+
 typedef struct {
     IWICBitmapDecoder IWICBitmapDecoder_iface;
     LONG ref;

dlls/windowscodecs/regsvr.c

@@ -1518,6 +1518,20 @@ static const struct reader_containers pngtext_containers[] = {
     { NULL } /* list terminator */
 };
 
+static const struct metadata_pattern lsd_metadata_patterns[] = {
+    { 0, 6, gif87a_magic, mask_all, 0 },
+    { 0, 6, gif89a_magic, mask_all, 0 },
+    { 0 }
+};
+
+static const struct reader_containers lsd_containers[] = {
+    {
+        &GUID_ContainerFormatGif,
+        lsd_metadata_patterns
+    },
+    { NULL } /* list terminator */
+};
+
 static struct regsvr_metadatareader const metadatareader_list[] = {
     {   &CLSID_WICUnknownMetadataReader,
         "The Wine Project",
@@ -1529,8 +1543,7 @@ static struct regsvr_metadatareader const metadatareader_list[] = {
         0, 0, 0,
         NULL
     },
-    {
-        &CLSID_WICIfdMetadataReader,
+    {   &CLSID_WICIfdMetadataReader,
         "The Wine Project",
         "Ifd Reader",
         "1.0.0.0",
@@ -1550,6 +1563,16 @@ static struct regsvr_metadatareader const metadatareader_list[] = {
         0, 0, 0,
         pngtext_containers
     },
+    {   &CLSID_WICLSDMetadataReader,
+        "The Wine Project",
+        "Logical Screen Descriptor Reader",
+        "1.0.0.0",
+        "1.0.0.0",
+        &GUID_VendorMicrosoft,
+        &GUID_MetadataFormatLSD,
+        0, 0, 0,
+        lsd_containers
+    },
     { NULL }			/* list terminator */
 };
 

dlls/windowscodecs/tests/metadata.c

@@ -1287,7 +1287,6 @@ static void test_metadata_LSD(void)
 
     hr = CoCreateInstance(&CLSID_WICLSDMetadataReader, NULL, CLSCTX_INPROC_SERVER,
                           &IID_IWICMetadataReader, (void **)&reader);
-todo_wine
     ok(hr == S_OK || broken(hr == E_NOINTERFACE || hr == REGDB_E_CLASSNOTREG) /* before Win7 */,
        "CoCreateInstance error %#x\n", hr);
 

dlls/windowscodecs/wincodecs_private.h

@@ -94,7 +94,7 @@ extern HRESULT MetadataReader_Create(const MetadataHandlerVtbl *vtable, IUnknown
 
 extern HRESULT UnknownMetadataReader_CreateInstance(IUnknown *pUnkOuter, REFIID iid, void** ppv) DECLSPEC_HIDDEN;
 extern HRESULT IfdMetadataReader_CreateInstance(IUnknown *pUnkOuter, REFIID iid, void **ppv) DECLSPEC_HIDDEN;
-
 extern HRESULT PngTextReader_CreateInstance(IUnknown *pUnkOuter, REFIID iid, void** ppv) DECLSPEC_HIDDEN;
+extern HRESULT LSDReader_CreateInstance(IUnknown *pUnkOuter, REFIID iid, void **ppv) DECLSPEC_HIDDEN;
 
 #endif /* WINCODECS_PRIVATE_H */

dlls/windowscodecs/windowscodecs_wincodec.idl

@@ -142,3 +142,10 @@ coclass WICIfdMetadataReader { interface IWICIfdMetadataReader; }
     uuid(4b59afcc-b8c3-408a-b670-89e5fab6fda7)
 ]
 coclass WICPngTextMetadataReader { interface IWICMetadataReader; }
+
+[
+    helpstring("WIC LSD Metadata Reader"),
+    threading(both),
+    uuid(41070793-59e4-479a-a1f7-954adc2ef5fc)
+]
+coclass WICLSDMetadataReader { interface IWICMetadataReader; }