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https://github.com/yuzu-emu/FasTC
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81 lines
2.8 KiB
C++
81 lines
2.8 KiB
C++
#ifndef _TEX_COMP_H_
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#define _TEX_COMP_H_
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#include "CompressedImage.h"
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// Forward declarations
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class ImageFile;
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class CompressedImage;
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class BlockStatManager;
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struct SCompressionSettings {
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SCompressionSettings(); // defaults
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// The compression format for the image.
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ECompressionFormat format;
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// The flag that requests us to use SIMD, if it is available
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bool bUseSIMD;
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// The number of threads to spawn in order to process the data
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int iNumThreads;
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// Some compression formats take a measurement of quality when
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// compressing an image. If the format supports it, this value
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// will be used for quality purposes.
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int iQuality;
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// The number of compressions to perform. The program will compress
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// the image this many times, and then take the average of the timing.
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int iNumCompressions;
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// This setting measures the number of blocks that a thread
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// will process at any given time. If this value is zero,
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// which is the default, the work will be divided by the
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// number of threads, and each thread will do it's job and
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// exit.
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int iJobSize;
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// This is an optinal pointer to a stat manager class. If
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// instantiated and the proper function pointer is defined
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// then the compression routine that collects the stats will
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// be called.
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BlockStatManager *pStatManager;
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};
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extern bool CompressImageData(
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const unsigned char *data,
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const unsigned int dataSz,
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unsigned char *cmpData,
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const unsigned int cmpDataSz,
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const SCompressionSettings &settings
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);
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// A compression function format. It takes the raw data and image dimensions and
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// returns the compressed image data into outData. It is assumed that there is
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// enough space allocated for outData to store the compressed data. Allocation
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// is dependent on the compression format.
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typedef void (* CompressionFunc)(
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const unsigned char *inData, // Raw image data
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unsigned char *outData, // Buffer to store compressed data.
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unsigned int width, // Image width
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unsigned int height // Image height
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);
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// A compression function format. It takes the raw data and image dimensions and
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// returns the compressed image data into outData. It is assumed that there is
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// enough space allocated for outData to store the compressed data. Allocation
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// is dependent on the compression format.
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typedef void (* CompressionFuncWithStats)(
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const unsigned char *inData, // Raw image data
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unsigned char *outData, // Buffer to store compressed data.
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unsigned int width, // Image width
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unsigned int height, // Image height
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BlockStatManager &statManager// Stat manager
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);
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// This function computes the Peak Signal to Noise Ratio between a
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// compressed image and a raw image.
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extern double ComputePSNR(const CompressedImage &ci, const ImageFile &file);
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#endif //_TEX_COMP_H_
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