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texconv: Added support for DXT5nm and RXGB DXT5 format variants (#362)

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This commit is contained in:
Chuck Walbourn
2023-06-12 14:34:32 -07:00
committed by GitHub
parent 2395b804ff
commit a2a4ffd33c
3 changed files with 224 additions and 91 deletions
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23
DirectXTex/DirectXTexDDS.cpp
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@@ -66,6 +66,19 @@ namespace
{ DXGI_FORMAT_BC2_UNORM, CONV_FLAGS_PMALPHA, DDSPF_DXT2 }, // D3DFMT_DXT2
{ DXGI_FORMAT_BC3_UNORM, CONV_FLAGS_PMALPHA, DDSPF_DXT4 }, // D3DFMT_DXT4
// These DXT5 variants have various swizzled channels. They are returned 'as is' to the client as BC3.
{ DXGI_FORMAT_BC3_UNORM, CONV_FLAGS_NONE, { sizeof(DDS_PIXELFORMAT), DDS_FOURCC, MAKEFOURCC('A', '2', 'D', '5'), 0, 0, 0, 0, 0 } },
{ DXGI_FORMAT_BC3_UNORM, CONV_FLAGS_NONE, { sizeof(DDS_PIXELFORMAT), DDS_FOURCC, MAKEFOURCC('x', 'G', 'B', 'R'), 0, 0, 0, 0, 0 } },
{ DXGI_FORMAT_BC3_UNORM, CONV_FLAGS_NONE, { sizeof(DDS_PIXELFORMAT), DDS_FOURCC, MAKEFOURCC('R', 'x', 'B', 'G'), 0, 0, 0, 0, 0 } },
{ DXGI_FORMAT_BC3_UNORM, CONV_FLAGS_NONE, { sizeof(DDS_PIXELFORMAT), DDS_FOURCC, MAKEFOURCC('R', 'B', 'x', 'G'), 0, 0, 0, 0, 0 } },
{ DXGI_FORMAT_BC3_UNORM, CONV_FLAGS_NONE, { sizeof(DDS_PIXELFORMAT), DDS_FOURCC, MAKEFOURCC('x', 'R', 'B', 'G'), 0, 0, 0, 0, 0 } },
{ DXGI_FORMAT_BC3_UNORM, CONV_FLAGS_NONE, { sizeof(DDS_PIXELFORMAT), DDS_FOURCC, MAKEFOURCC('R', 'G', 'x', 'B'), 0, 0, 0, 0, 0 } },
{ DXGI_FORMAT_BC3_UNORM, CONV_FLAGS_NONE, { sizeof(DDS_PIXELFORMAT), DDS_FOURCC, MAKEFOURCC('x', 'G', 'x', 'R'), 0, 0, 0, 0, 0 } },
{ DXGI_FORMAT_BC3_UNORM, CONV_FLAGS_NONE, { sizeof(DDS_PIXELFORMAT), DDS_FOURCC, MAKEFOURCC('G', 'X', 'R', 'B'), 0, 0, 0, 0, 0 } },
{ DXGI_FORMAT_BC3_UNORM, CONV_FLAGS_NONE, { sizeof(DDS_PIXELFORMAT), DDS_FOURCC, MAKEFOURCC('G', 'R', 'X', 'B'), 0, 0, 0, 0, 0 } },
{ DXGI_FORMAT_BC3_UNORM, CONV_FLAGS_NONE, { sizeof(DDS_PIXELFORMAT), DDS_FOURCC, MAKEFOURCC('R', 'X', 'G', 'B'), 0, 0, 0, 0, 0 } },
{ DXGI_FORMAT_BC3_UNORM, CONV_FLAGS_NONE, { sizeof(DDS_PIXELFORMAT), DDS_FOURCC, MAKEFOURCC('B', 'R', 'G', 'X'), 0, 0, 0, 0, 0 } },
{ DXGI_FORMAT_BC4_UNORM, CONV_FLAGS_NONE, DDSPF_BC4_UNORM },
{ DXGI_FORMAT_BC4_SNORM, CONV_FLAGS_NONE, DDSPF_BC4_SNORM },
{ DXGI_FORMAT_BC5_UNORM, CONV_FLAGS_NONE, DDSPF_BC5_UNORM },
@@ -73,6 +86,7 @@ namespace
{ DXGI_FORMAT_BC4_UNORM, CONV_FLAGS_NONE, { sizeof(DDS_PIXELFORMAT), DDS_FOURCC, MAKEFOURCC('A', 'T', 'I', '1'), 0, 0, 0, 0, 0 } },
{ DXGI_FORMAT_BC5_UNORM, CONV_FLAGS_NONE, { sizeof(DDS_PIXELFORMAT), DDS_FOURCC, MAKEFOURCC('A', 'T', 'I', '2'), 0, 0, 0, 0, 0 } },
{ DXGI_FORMAT_BC5_UNORM, CONV_FLAGS_NONE, { sizeof(DDS_PIXELFORMAT), DDS_FOURCC, MAKEFOURCC('A', '2', 'X', 'Y'), 0, 0, 0, 0, 0 } },
{ DXGI_FORMAT_BC6H_UF16, CONV_FLAGS_NONE, { sizeof(DDS_PIXELFORMAT), DDS_FOURCC, MAKEFOURCC('B', 'C', '6', 'H'), 0, 0, 0, 0, 0 } },
{ DXGI_FORMAT_BC7_UNORM, CONV_FLAGS_NONE, { sizeof(DDS_PIXELFORMAT), DDS_FOURCC, MAKEFOURCC('B', 'C', '7', 'L'), 0, 0, 0, 0, 0 } },
@@ -614,7 +628,6 @@ HRESULT DirectX::EncodeDDSHeader(
case DXGI_FORMAT_G8R8_G8B8_UNORM: memcpy(&ddpf, &DDSPF_G8R8_G8B8, sizeof(DDS_PIXELFORMAT)); break;
case DXGI_FORMAT_BC1_UNORM: memcpy(&ddpf, &DDSPF_DXT1, sizeof(DDS_PIXELFORMAT)); break;
case DXGI_FORMAT_BC2_UNORM: memcpy(&ddpf, metadata.IsPMAlpha() ? (&DDSPF_DXT2) : (&DDSPF_DXT3), sizeof(DDS_PIXELFORMAT)); break;
case DXGI_FORMAT_BC3_UNORM: memcpy(&ddpf, metadata.IsPMAlpha() ? (&DDSPF_DXT4) : (&DDSPF_DXT5), sizeof(DDS_PIXELFORMAT)); break;
case DXGI_FORMAT_BC4_SNORM: memcpy(&ddpf, &DDSPF_BC4_SNORM, sizeof(DDS_PIXELFORMAT)); break;
case DXGI_FORMAT_BC5_SNORM: memcpy(&ddpf, &DDSPF_BC5_SNORM, sizeof(DDS_PIXELFORMAT)); break;
case DXGI_FORMAT_B5G6R5_UNORM: memcpy(&ddpf, &DDSPF_R5G6B5, sizeof(DDS_PIXELFORMAT)); break;
@@ -627,6 +640,14 @@ HRESULT DirectX::EncodeDDSHeader(
case DXGI_FORMAT_B4G4R4A4_UNORM: memcpy(&ddpf, &DDSPF_A4R4G4B4, sizeof(DDS_PIXELFORMAT)); break; // DXGI 1.2
case DXGI_FORMAT_YUY2: memcpy(&ddpf, &DDSPF_YUY2, sizeof(DDS_PIXELFORMAT)); break; // DXGI 1.2
case DXGI_FORMAT_BC3_UNORM:
memcpy(&ddpf, metadata.IsPMAlpha() ? (&DDSPF_DXT4) : (&DDSPF_DXT5), sizeof(DDS_PIXELFORMAT));
if (flags & DDS_FLAGS_FORCE_DXT5_RXGB)
{
ddpf.fourCC = MAKEFOURCC('R', 'X', 'G', 'B');
}
break;
// Legacy D3DX formats using D3DFMT enum value as FourCC
case DXGI_FORMAT_R32G32B32A32_FLOAT:
ddpf.size = sizeof(DDS_PIXELFORMAT); ddpf.flags = DDS_FOURCC; ddpf.fourCC = 116; // D3DFMT_A32B32G32R32F