drewcassidy/nvidia-texture-tools
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Some bug fixes and more progress toward BC6-7 support.

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This commit is contained in:
castano
2010-06-03 07:58:03 +00:00
parent 68cbe543b0
commit 322dcd72c1
5 changed files with 47 additions and 9 deletions
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9
src/nvtt/CompressorDXT.h
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@ -29,6 +29,7 @@
namespace nv
{
struct ColorBlock;
struct Tile;
struct FixedBlockCompressor : public CompressorInterface
{
@ -38,6 +39,14 @@ namespace nv
virtual uint blockSize() const = 0;
};
struct TileCompressor : public CompressorInterface
{
virtual void compress(nvtt::InputFormat inputFormat, nvtt::AlphaMode alphaMode, uint w, uint h, const void * data, const nvtt::CompressionOptions::Private & compressionOptions, const nvtt::OutputOptions::Private & outputOptions);
virtual void compressBlock(Tile & tile, nvtt::AlphaMode alphaMode, const nvtt::CompressionOptions::Private & compressionOptions, void * output) = 0;
virtual uint blockSize() const = 0;
};
} // nv namespace

26
src/nvtt/Context.cpp
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@ -455,25 +455,32 @@ bool Compressor::Private::outputHeader(const InputOptions::Private & inputOption
else
{
if (compressionOptions.format == Format_DXT1 || compressionOptions.format == Format_DXT1a || compressionOptions.format == Format_DXT1n) {
header.setDX10Format(71);
header.setDX10Format(70); // DXGI_FORMAT_BC1_TYPELESS
if (compressionOptions.format == Format_DXT1a) header.setHasAlphaFlag(true);
if (inputOptions.isNormalMap) header.setNormalFlag(true);
}
else if (compressionOptions.format == Format_DXT3) {
header.setDX10Format(74);
header.setDX10Format(73); // DXGI_FORMAT_BC2_TYPELESS
}
else if (compressionOptions.format == Format_DXT5) {
header.setDX10Format(77);
header.setDX10Format(76); // DXGI_FORMAT_BC3_TYPELESS
}
else if (compressionOptions.format == Format_DXT5n) {
header.setDX10Format(77);
header.setDX10Format(76); // DXGI_FORMAT_BC3_TYPELESS
if (inputOptions.isNormalMap) header.setNormalFlag(true);
}
else if (compressionOptions.format == Format_BC4) {
header.setDX10Format(80);
header.setDX10Format(79); // DXGI_FORMAT_BC4_TYPELESS
}
else if (compressionOptions.format == Format_BC5) {
header.setDX10Format(83);
header.setDX10Format(82); // DXGI_FORMAT_BC5_TYPELESS
if (inputOptions.isNormalMap) header.setNormalFlag(true);
}
else if (compressionOptions.format == Format_BC6) {
header.setDX10Format(94); // DXGI_FORMAT_BC6H_TYPELESS
}
else if (compressionOptions.format == Format_BC7) {
header.setDX10Format(97); // DXGI_FORMAT_BC7_TYPELESS
if (inputOptions.isNormalMap) header.setNormalFlag(true);
}
else {
@ -581,6 +588,13 @@ bool Compressor::Private::outputHeader(const InputOptions::Private & inputOption
header.setSwizzleCode('A', '2', 'X', 'Y');
}
}
else if (compressionOptions.format == Format_BC6) {
header.setFourCC('Z', 'O', 'H', ' ');
}
else if (compressionOptions.format == Format_BC7) {
header.setFourCC('Z', 'O', 'L', 'A');
if (inputOptions.isNormalMap) header.setNormalFlag(true);
}
else if (compressionOptions.format == Format_CTX1) {
header.setFourCC('C', 'T', 'X', '1');
if (inputOptions.isNormalMap) header.setNormalFlag(true);

5
src/nvtt/nvtt.h
View File

@ -93,7 +93,7 @@ namespace nvtt
Format_DXT1n,// Not supported on CPU yet.
Format_CTX1, // Not supported on CPU yet.
Format_YCoCg_DXT5, // Not supported yet.
//Format_YCoCg_DXT5, // Not supported yet.
Format_BC6, // Not supported yet.
Format_BC7, // Not supported yet.
@ -101,7 +101,7 @@ namespace nvtt
Format_RGBE,
};
/// Pixel types.
/// Pixel types. These basically indicate how the output should be interpreted, but do not have any influence over the input.
enum PixelType
{
PixelType_UnsignedNorm,
@ -109,6 +109,7 @@ namespace nvtt
PixelType_UnsignedInt, // Not supported yet.
PixelType_SignedInt, // Not supported yet.
PixelType_Float,
PixelType_UnsignedFloat,
};
/// Quality modes.