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gdiplus: Add GIF frame delay to the image properties.

This commit is contained in:
Dmitry Timoshkov 2012-09-25 12:52:19 +09:00 committed by Alexandre Julliard
parent 000f4725aa
commit 3bb4974dd4
1 changed files with 72 additions and 2 deletions
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74
dlls/gdiplus/image.c
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@ -3195,13 +3195,81 @@ static PropertyItem *get_gif_comment(IWICMetadataReader *reader)
return comment;
}
static void gif_metadata_reader(GpBitmap *bitmap, IWICBitmapDecoder *decoder, UINT active_frame)
static LONG get_gif_frame_delay(IWICBitmapFrameDecode *frame)
{
static const WCHAR delayW[] = { 'D','e','l','a','y',0 };
HRESULT hr;
IWICMetadataBlockReader *block_reader;
IWICMetadataReader *reader;
UINT block_count, i;
PropertyItem *comment = NULL;
PropertyItem *delay;
LONG value = 0;
hr = IWICBitmapFrameDecode_QueryInterface(frame, &IID_IWICMetadataBlockReader, (void **)&block_reader);
if (hr == S_OK)
{
hr = IWICMetadataBlockReader_GetCount(block_reader, &block_count);
if (hr == S_OK)
{
for (i = 0; i < block_count; i++)
{
hr = IWICMetadataBlockReader_GetReaderByIndex(block_reader, i, &reader);
if (hr == S_OK)
{
delay = get_property(reader, &GUID_MetadataFormatGCE, delayW);
if (delay)
{
if (delay->type == PropertyTagTypeShort && delay->length == 2)
value = *(SHORT *)delay->value;
GdipFree(delay);
}
IWICMetadataReader_Release(reader);
}
}
}
IWICMetadataBlockReader_Release(block_reader);
}
return value;
}
static void gif_metadata_reader(GpBitmap *bitmap, IWICBitmapDecoder *decoder, UINT active_frame)
{
HRESULT hr;
IWICBitmapFrameDecode *frame;
IWICMetadataBlockReader *block_reader;
IWICMetadataReader *reader;
UINT frame_count, block_count, i;
PropertyItem *delay = NULL, *comment = NULL;
IWICBitmapDecoder_GetFrameCount(decoder, &frame_count);
if (frame_count > 1)
{
delay = GdipAlloc(sizeof(*delay) + frame_count * sizeof(LONG));
if (delay)
{
LONG *value;
delay->type = PropertyTagTypeLong;
delay->id = PropertyTagFrameDelay;
delay->length = frame_count * sizeof(LONG);
delay->value = delay + 1;
value = delay->value;
for (i = 0; i < frame_count; i++)
{
hr = IWICBitmapDecoder_GetFrame(decoder, i, &frame);
if (hr == S_OK)
{
value[i] = get_gif_frame_delay(frame);
IWICBitmapFrameDecode_Release(frame);
}
else value[i] = 0;
}
}
}
hr = IWICBitmapDecoder_QueryInterface(decoder, &IID_IWICMetadataBlockReader, (void **)&block_reader);
if (hr == S_OK)
@ -3224,8 +3292,10 @@ static void gif_metadata_reader(GpBitmap *bitmap, IWICBitmapDecoder *decoder, UI
IWICMetadataBlockReader_Release(block_reader);
}
if (delay) add_property(bitmap, delay);
if (comment) add_property(bitmap, comment);
GdipFree(delay);
GdipFree(comment);
}