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DDS support for legacy bumpmap formats D3DFMT_V8U8, D3DFMT_Q8W8V8U8, and D3DFMT_V16U16

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This commit is contained in:
Chuck Walbourn
2015-10-29 16:39:53 -07:00
parent 231206104c
commit a121bc5c31
4 changed files with 58 additions and 2 deletions
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25
DDSTextureLoader/DDSTextureLoader.cpp
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@@ -64,6 +64,7 @@ struct DDS_PIXELFORMAT
#define DDS_RGB 0x00000040 // DDPF_RGB
#define DDS_LUMINANCE 0x00020000 // DDPF_LUMINANCE
#define DDS_ALPHA 0x00000002 // DDPF_ALPHA
#define DDS_BUMPDUDV 0x00080000 // DDPF_BUMPDUDV
#define DDS_HEADER_FLAGS_VOLUME 0x00800000 // DDSD_DEPTH
@@ -661,6 +662,30 @@ static DXGI_FORMAT GetDXGIFormat( const DDS_PIXELFORMAT& ddpf )
return DXGI_FORMAT_A8_UNORM;
}
}
else if (ddpf.flags & DDS_BUMPDUDV)
{
if (16 == ddpf.RGBBitCount)
{
if (ISBITMASK(0x00ff, 0xff00, 0x0000, 0x0000))
{
return DXGI_FORMAT_R8G8_SNORM; // D3DX10/11 writes this out as DX10 extension
}
}
if (32 == ddpf.RGBBitCount)
{
if (ISBITMASK(0x000000ff, 0x0000ff00, 0x00ff0000, 0xff000000))
{
return DXGI_FORMAT_R8G8B8A8_SNORM; // D3DX10/11 writes this out as DX10 extension
}
if (ISBITMASK(0x0000ffff, 0xffff0000, 0x00000000, 0x00000000))
{
return DXGI_FORMAT_R16G16_SNORM; // D3DX10/11 writes this out as DX10 extension
}
// No DXGI format maps to ISBITMASK(0x3ff00000, 0x000ffc00, 0x000003ff, 0xc0000000) aka D3DFMT_A2W10V10U10
}
}
else if (ddpf.flags & DDS_FOURCC)
{
if (MAKEFOURCC( 'D', 'X', 'T', '1' ) == ddpf.fourCC)