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BPTC support

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elasota 2018-08-21 22:56:04 -04:00
parent 0e6551d8e2
commit 35f6ba5c5d
34 changed files with 10491 additions and 70 deletions
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thirdparty/cvtt/ConvectionKernels.cpp vendored Normal file
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/*
Convection Texture Tools
Copyright (c) 2018 Eric Lasota
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject
to the following conditions:
The above copyright notice and this permission notice shall be included
in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#pragma once
#ifndef __CVTT_CONVECTION_KERNELS__
#define __CVTT_CONVECTION_KERNELS__
#include <stdint.h>
namespace cvtt
{
namespace Flags
{
// Enable partitioned modes in BC7 encoding (slower, better quality)
const uint32_t BC7_EnablePartitioning = 0x001;
// Enable 3-partition modes in BC7 encoding (slower, better quality, requires BC7_EnablePartitioning)
const uint32_t BC7_Enable3Subsets = 0x002;
// Enable dual-plane modes in BC7 encoding (slower, better quality)
const uint32_t BC7_EnableDualPlane = 0x004;
// Use fast indexing in BC7 encoding (about 2x faster, slightly worse quality)
const uint32_t BC7_FastIndexing = 0x008;
// Try precomputed single-color lookups where applicable (slightly slower, small quality increase on specific blocks)
const uint32_t BC7_TrySingleColor = 0x010;
// Don't allow non-zero or non-max alpha values in blocks that only contain one or the other
const uint32_t BC7_RespectPunchThrough = 0x020;
// Use fast indexing in HDR formats (faster, worse quality)
const uint32_t BC6H_FastIndexing = 0x040;
// Exhaustive search RGB orderings when encoding BC1-BC3 (much slower, better quality)
const uint32_t S3TC_Exhaustive = 0x080;
// Penalize distant endpoints, improving quality on inaccurate GPU decoders
const uint32_t S3TC_Paranoid = 0x100;
// Uniform color channel importance
const uint32_t Uniform = 0x200;
// Misc useful default flag combinations
const uint32_t Fastest = (BC6H_FastIndexing | S3TC_Paranoid);
const uint32_t Faster = (BC7_EnableDualPlane | BC6H_FastIndexing | S3TC_Paranoid);
const uint32_t Fast = (BC7_EnablePartitioning | BC7_EnableDualPlane | BC7_FastIndexing | S3TC_Paranoid);
const uint32_t Default = (BC7_EnablePartitioning | BC7_EnableDualPlane | BC7_Enable3Subsets | BC7_FastIndexing | S3TC_Paranoid);
const uint32_t Better = (BC7_EnablePartitioning | BC7_EnableDualPlane | BC7_Enable3Subsets | S3TC_Paranoid | S3TC_Exhaustive);
const uint32_t Ultra = (BC7_EnablePartitioning | BC7_EnableDualPlane | BC7_Enable3Subsets | BC7_TrySingleColor | S3TC_Paranoid | S3TC_Exhaustive);
}
const unsigned int NumParallelBlocks = 8;
struct Options
{
uint32_t flags; // Bitmask of cvtt::Flags values
float threshold; // Alpha test threshold for BC1
float redWeight; // Red channel importance
float greenWeight; // Green channel importance
float blueWeight; // Blue channel importance
float alphaWeight; // Alpha channel importance
int refineRoundsBC7; // Number of refine rounds for BC7
int refineRoundsBC6H; // Number of refine rounds for BC6H (max 3)
int refineRoundsIIC; // Number of refine rounds for independent interpolated channels (BC3 alpha, BC4, BC5)
int refineRoundsS3TC; // Number of refine rounds for S3TC RGB
int seedPoints; // Number of seed points (min 1, max 4)
Options()
: flags(Flags::Default)
, threshold(0.5f)
, redWeight(0.2125f / 0.7154f)
, greenWeight(1.0f)
, blueWeight(0.0721f / 0.7154f)
, alphaWeight(1.0f)
, refineRoundsBC7(2)
, refineRoundsBC6H(3)
, refineRoundsIIC(8)
, refineRoundsS3TC(2)
, seedPoints(4)
{
}
};
// RGBA input block for unsigned 8-bit formats
struct PixelBlockU8
{
uint8_t m_pixels[16][4];
};
// RGBA input block for signed 8-bit formats
struct PixelBlockS8
{
int8_t m_pixels[16][4];
};
// RGBA input block for half-precision float formats (bit-cast to int16_t)
struct PixelBlockF16
{
int16_t m_pixels[16][4];
};
namespace Kernels
{
// NOTE: All functions accept and output NumParallelBlocks blocks at once
void EncodeBC1(uint8_t *pBC, const PixelBlockU8 *pBlocks, const Options &options);
void EncodeBC2(uint8_t *pBC, const PixelBlockU8 *pBlocks, const Options &options);
void EncodeBC3(uint8_t *pBC, const PixelBlockU8 *pBlocks, const Options &options);
void EncodeBC4U(uint8_t *pBC, const PixelBlockU8 *pBlocks, const Options &options);
void EncodeBC4S(uint8_t *pBC, const PixelBlockS8 *pBlocks, const Options &options);
void EncodeBC5U(uint8_t *pBC, const PixelBlockU8 *pBlocks, const Options &options);
void EncodeBC5S(uint8_t *pBC, const PixelBlockS8 *pBlocks, const Options &options);
void EncodeBC6HU(uint8_t *pBC, const PixelBlockF16 *pBlocks, const Options &options);
void EncodeBC6HS(uint8_t *pBC, const PixelBlockF16 *pBlocks, const Options &options);
void EncodeBC7(uint8_t *pBC, const PixelBlockU8 *pBlocks, const Options &options);
void DecodeBC6HU(PixelBlockF16 *pBlocks, const uint8_t *pBC);
void DecodeBC6HS(PixelBlockF16 *pBlocks, const uint8_t *pBC);
void DecodeBC7(PixelBlockU8 *pBlocks, const uint8_t *pBC);
}
}
#endif

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thirdparty/cvtt/ConvectionKernels_BC7_SingleColor.h vendored Normal file
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Convection Texture Tools Stand-Alone Kernels
Copyright (c) 2018 Eric Lasota
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject
to the following conditions:
The above copyright notice and this permission notice shall be included
in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
**************************************************************************
Based on DirectX Texture Library
Copyright (c) 2018 Microsoft Corp
Permission is hereby granted, free of charge, to any person obtaining a copy of this
software and associated documentation files (the "Software"), to deal in the Software
without restriction, including without limitation the rights to use, copy, modify,
merge, publish, distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to the following
conditions:
The above copyright notice and this permission notice shall be included in all copies
or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE
OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.