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https://github.com/yuzu-emu/FasTC.git
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81 lines
3.4 KiB
C++
Executable File
81 lines
3.4 KiB
C++
Executable File
//--------------------------------------------------------------------------------------
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// Copyright 2011 Intel Corporation
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// All Rights Reserved
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//
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// Permission is granted to use, copy, distribute and prepare derivative works of this
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// software for any purpose and without fee, provided, that the above copyright notice
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// and this statement appear in all copies. Intel makes no representations about the
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// suitability of this software for any purpose. THIS SOFTWARE IS PROVIDED "AS IS."
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// INTEL SPECIFICALLY DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, AND ALL LIABILITY,
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// INCLUDING CONSEQUENTIAL AND OTHER INDIRECT DAMAGES, FOR THE USE OF THIS SOFTWARE,
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// INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PROPRIETARY RIGHTS, AND INCLUDING THE
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// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. Intel does not
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// assume any responsibility for any errors which may appear in this software nor any
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// responsibility to update it.
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//
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//--------------------------------------------------------------------------------------
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#include "BC7Config.h"
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class BlockStatManager;
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namespace BC7C
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{
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// This is the error metric that is applied to our error measurement algorithm
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// in order to bias calculation towards results that are more in-line with
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// how the Human Visual System works. Uniform error means that each color
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// channel is treated equally. For a while, the widely accepted non-uniform metric
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// has been to give red 30%, green 59% and blue 11% weight when computing the error
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// between two pixels.
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enum ErrorMetric
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{
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eErrorMetric_Uniform, // Treats r, g, and b channels equally
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eErrorMetric_Nonuniform, // { 0.3, 0.59, 0.11 }
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kNumErrorMetrics
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};
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// Sets the error metric to be the one specified.
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void SetErrorMetric(ErrorMetric e);
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// Retreives a float4 pointer for the r, g, b, a weights for each color channel, in
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// that order, based on the current error metric.
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const float *GetErrorMetric();
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// Returns the enumeration for the current error metric.
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ErrorMetric GetErrorMetricEnum();
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// Sets the number of steps that we use to perform simulated annealing. In general, a
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// larger number produces better results. The default is set to 50. This metric works
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// on a logarithmic scale -- twice the value will double the compute time, but only
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// decrease the error by two times a factor.
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void SetQualityLevel(int q);
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int GetQualityLevel();
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// Compress the image given as RGBA data to BC7 format. Width and Height are the dimensions of
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// the image in pixels.
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void CompressImageBC7(
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const unsigned char *inBuf,
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unsigned char *outBuf,
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unsigned int width,
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unsigned int height
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);
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void CompressImageBC7Stats(
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const unsigned char *inBuf,
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unsigned char *outBuf,
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unsigned int width,
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unsigned int height,
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BlockStatManager &statManager
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);
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#ifdef HAS_SSE_41
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// Compress the image given as RGBA data to BC7 format using an algorithm optimized for SIMD
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// enabled platforms. Width and Height are the dimensions of the image in pixels.
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void CompressImageBC7SIMD(const unsigned char* inBuf, unsigned char* outBuf, unsigned int width, unsigned int height);
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#endif
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// Decompress the image given as BC7 data to R8G8B8A8 format. Width and Height are the dimensions of the image in pixels.
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void DecompressImageBC7(const unsigned char* inBuf, unsigned char* outBuf, unsigned int width, unsigned int height);
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}
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