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d3dx9: Return D3DFMT_A8R8G8B8 in D3DXGetImageInfoFromFileInMemory for 32 bpp BMP with alpha. 

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=48563
Signed-off-by: Zebediah Figura <z.figura12@gmail.com>
Signed-off-by: Matteo Bruni <mbruni@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Christian Costa 2021-01-30 13:50:48 -06:00 committed by Alexandre Julliard
parent 451663cfb8
commit 8f6c832b31
2 changed files with 39 additions and 1 deletions
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38
dlls/d3dx9_36/surface.c
View File

@ -887,6 +887,41 @@ static BOOL convert_dib_to_bmp(const void **data, unsigned int *size)
return TRUE;
}
/* windowscodecs always returns xRGB, but we should return ARGB if and only if
* at least one pixel has a non-zero alpha component. */
static BOOL image_is_argb(IWICBitmapFrameDecode *frame, const D3DXIMAGE_INFO *info)
{
unsigned int size, i;
BYTE *buffer;
HRESULT hr;
if (info->Format != D3DFMT_X8R8G8B8 || info->ImageFileFormat != D3DXIFF_BMP)
return FALSE;
size = info->Width * info->Height * 4;
if (!(buffer = malloc(size)))
return FALSE;
if (FAILED(hr = IWICBitmapFrameDecode_CopyPixels(frame, NULL, info->Width * 4, size, buffer)))
{
ERR("Failed to copy pixels, hr %#x.\n", hr);
free(buffer);
return FALSE;
}
for (i = 0; i < info->Width * info->Height; ++i)
{
if (buffer[i * 4 + 3])
{
free(buffer);
return TRUE;
}
}
free(buffer);
return FALSE;
}
/************************************************************
* D3DXGetImageInfoFromFileInMemory
*
@ -1006,6 +1041,9 @@ HRESULT WINAPI D3DXGetImageInfoFromFileInMemory(const void *data, UINT datasize,
}
}
if (SUCCEEDED(hr) && image_is_argb(frame, info))
info->Format = D3DFMT_A8R8G8B8;
if (frame)
IWICBitmapFrameDecode_Release(frame);

2
dlls/d3dx9_36/tests/surface.c
View File

@ -698,7 +698,7 @@ static void test_D3DXGetImageInfo(void)
ok(info.Format == D3DFMT_X8R8G8B8, "Got unexpected format %u.\n", info.Format);
hr = D3DXGetImageInfoFromFileInMemory(bmp_32bpp_argb, sizeof(bmp_32bpp_argb), &info);
ok(hr == D3D_OK, "Got unexpected hr %#x.\n", hr);
todo_wine ok(info.Format == D3DFMT_A8R8G8B8, "Got unexpected format %u.\n", info.Format);
ok(info.Format == D3DFMT_A8R8G8B8, "Got unexpected format %u.\n", info.Format);
/* Grayscale PNG */
hr = D3DXGetImageInfoFromFileInMemory(png_grayscale, sizeof(png_grayscale), &info);