mirror of
https://github.com/yuzu-emu/FasTC.git
synced 2024-11-27 22:14:16 +01:00
248 lines
8.1 KiB
C++
Executable File
248 lines
8.1 KiB
C++
Executable File
/* FasTC
|
|
* Copyright (c) 2014 University of North Carolina at Chapel Hill.
|
|
* All rights reserved.
|
|
*
|
|
* Permission to use, copy, modify, and distribute this software and its
|
|
* documentation for educational, research, and non-profit purposes, without
|
|
* fee, and without a written agreement is hereby granted, provided that the
|
|
* above copyright notice, this paragraph, and the following four paragraphs
|
|
* appear in all copies.
|
|
*
|
|
* Permission to incorporate this software into commercial products may be
|
|
* obtained by contacting the authors or the Office of Technology Development
|
|
* at the University of North Carolina at Chapel Hill <otd@unc.edu>.
|
|
*
|
|
* This software program and documentation are copyrighted by the University of
|
|
* North Carolina at Chapel Hill. The software program and documentation are
|
|
* supplied "as is," without any accompanying services from the University of
|
|
* North Carolina at Chapel Hill or the authors. The University of North
|
|
* Carolina at Chapel Hill and the authors do not warrant that the operation of
|
|
* the program will be uninterrupted or error-free. The end-user understands
|
|
* that the program was developed for research purposes and is advised not to
|
|
* rely exclusively on the program for any reason.
|
|
*
|
|
* IN NO EVENT SHALL THE UNIVERSITY OF NORTH CAROLINA AT CHAPEL HILL OR THE
|
|
* AUTHORS BE LIABLE TO ANY PARTY FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL,
|
|
* OR CONSEQUENTIAL DAMAGES, INCLUDING LOST PROFITS, ARISING OUT OF THE USE OF
|
|
* THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF THE UNIVERSITY OF NORTH CAROLINA
|
|
* AT CHAPEL HILL OR THE AUTHORS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH
|
|
* DAMAGE.
|
|
*
|
|
* THE UNIVERSITY OF NORTH CAROLINA AT CHAPEL HILL AND THE AUTHORS SPECIFICALLY
|
|
* DISCLAIM ANY WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
|
|
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE AND ANY
|
|
* STATUTORY WARRANTY OF NON-INFRINGEMENT. THE SOFTWARE PROVIDED HEREUNDER IS ON
|
|
* AN "AS IS" BASIS, AND THE UNIVERSITY OF NORTH CAROLINA AT CHAPEL HILL AND
|
|
* THE AUTHORS HAVE NO OBLIGATIONS TO PROVIDE MAINTENANCE, SUPPORT, UPDATES,
|
|
* ENHANCEMENTS, OR MODIFICATIONS.
|
|
*
|
|
* Please send all BUG REPORTS to <pavel@cs.unc.edu>.
|
|
*
|
|
* The authors may be contacted via:
|
|
*
|
|
* Pavel Krajcevski
|
|
* Dept of Computer Science
|
|
* 201 S Columbia St
|
|
* Frederick P. Brooks, Jr. Computer Science Bldg
|
|
* Chapel Hill, NC 27599-3175
|
|
* USA
|
|
*
|
|
* <http://gamma.cs.unc.edu/FasTC/>
|
|
*/
|
|
|
|
#ifndef __COMPRESSION_JOBS_H__
|
|
#define __COMPRESSION_JOBS_H__
|
|
|
|
#include "TexCompTypes.h"
|
|
#include "CompressionFormat.h"
|
|
|
|
#ifdef _MSC_VER
|
|
# define ALIGN(x) __declspec( align(x) )
|
|
#else
|
|
# define ALIGN(x) __attribute__((aligned(x)))
|
|
#endif
|
|
#define ALIGN_SSE ALIGN(16)
|
|
|
|
namespace FasTC {
|
|
|
|
// This structure defines a compression job. Here, width and height are the dimensions
|
|
// of the image in pixels. inBuf contains the R8G8B8A8 data that is to be compressed, and
|
|
// outBuf will contain the compressed BPTC data.
|
|
//
|
|
// Implicit sizes:
|
|
// inBuf - (width * height * 4) bytes
|
|
// outBuf - (width * height) bytes
|
|
class CompressionJob {
|
|
private:
|
|
ECompressionFormat m_Format;
|
|
const uint8 *m_InBuf;
|
|
uint8 *m_OutBuf;
|
|
uint32 m_Width;
|
|
uint32 m_Height;
|
|
uint32 m_XStart, m_XEnd;
|
|
uint32 m_YStart, m_YEnd;
|
|
|
|
public:
|
|
ECompressionFormat Format() const { return m_Format; }
|
|
const uint8 *InBuf() const { return m_InBuf; }
|
|
uint8 *OutBuf() const { return m_OutBuf; }
|
|
uint32 Width() const { return m_Width; }
|
|
uint32 Height() const { return m_Height; }
|
|
uint32 XStart() const { return m_XStart; }
|
|
uint32 XEnd() const { return m_XEnd; }
|
|
uint32 YStart() const { return m_YStart; }
|
|
uint32 YEnd() const { return m_YEnd; }
|
|
|
|
CompressionJob(
|
|
ECompressionFormat _fmt,
|
|
const uint8 *_inBuf,
|
|
unsigned char *_outBuf,
|
|
const uint32 _width,
|
|
const uint32 _height)
|
|
: m_Format(_fmt)
|
|
, m_InBuf(_inBuf)
|
|
, m_OutBuf(_outBuf)
|
|
, m_Width(_width)
|
|
, m_Height(_height)
|
|
, m_XStart(0), m_XEnd(_width)
|
|
, m_YStart(0), m_YEnd(_height)
|
|
{ }
|
|
|
|
CompressionJob(
|
|
ECompressionFormat _fmt,
|
|
const uint8 *_inBuf,
|
|
unsigned char *_outBuf,
|
|
const uint32 _width,
|
|
const uint32 _height,
|
|
const uint32 _xOffset,
|
|
const uint32 _yOffset)
|
|
: m_Format(_fmt)
|
|
, m_InBuf(_inBuf)
|
|
, m_OutBuf(_outBuf)
|
|
, m_Width(_width)
|
|
, m_Height(_height)
|
|
, m_XStart(_xOffset), m_XEnd(_width)
|
|
, m_YStart(_yOffset), m_YEnd(_height)
|
|
{ }
|
|
|
|
CompressionJob(
|
|
ECompressionFormat _fmt,
|
|
const uint8 *_inBuf,
|
|
unsigned char *_outBuf,
|
|
const uint32 _width,
|
|
const uint32 _height,
|
|
const uint32 _xOffset,
|
|
const uint32 _yOffset,
|
|
const uint32 _xEndpoint,
|
|
const uint32 _yEndpoint)
|
|
: m_Format(_fmt)
|
|
, m_InBuf(_inBuf)
|
|
, m_OutBuf(_outBuf)
|
|
, m_Width(_width)
|
|
, m_Height(_height)
|
|
, m_XStart(_xOffset), m_XEnd(_xEndpoint)
|
|
, m_YStart(_yOffset), m_YEnd(_yEndpoint)
|
|
{ }
|
|
|
|
// Returns the x and y coordinates of the pixels that corresponds to the block
|
|
// index for the given format.
|
|
void BlockIdxToCoords(uint32 blockIdx, uint32 (&out)[2]) const {
|
|
uint32 blockDim[2];
|
|
GetBlockDimensions(Format(), blockDim);
|
|
|
|
const uint32 kNumBlocksX = Width() / blockDim[0];
|
|
|
|
const uint32 blockX = blockIdx % kNumBlocksX;
|
|
const uint32 blockY = blockIdx / kNumBlocksX;
|
|
|
|
out[0] = blockX * blockDim[0];
|
|
out[1] = blockY * blockDim[1];
|
|
}
|
|
|
|
// Returns the x and y coordinates of the pixels that corresponds to the block
|
|
// index for the given format.
|
|
uint32 CoordsToBlockIdx(uint32 x, uint32 y) const {
|
|
uint32 blockDim[2];
|
|
GetBlockDimensions(Format(), blockDim);
|
|
|
|
const uint32 kNumBlocksX = Width() / blockDim[0];
|
|
|
|
const uint32 blockX = x / blockDim[0];
|
|
const uint32 blockY = y / blockDim[1];
|
|
|
|
return blockY * kNumBlocksX + blockX;
|
|
}
|
|
};
|
|
|
|
// This struct mirrors that for a compression job, but is used to decompress a BPTC stream. Here, inBuf
|
|
// is a buffer of BPTC data, and outBuf is the destination where we will copy the decompressed R8G8B8A8 data
|
|
class DecompressionJob {
|
|
private:
|
|
const ECompressionFormat m_Format;
|
|
const uint8 *m_InBuf;
|
|
uint8 *m_OutBuf;
|
|
const uint32 m_Width;
|
|
const uint32 m_Height;
|
|
|
|
public:
|
|
const uint8 *InBuf() const { return m_InBuf; }
|
|
uint8 *OutBuf() const { return m_OutBuf; }
|
|
uint32 Width() const { return m_Width; }
|
|
uint32 Height() const { return m_Height; }
|
|
ECompressionFormat Format() const { return m_Format; }
|
|
|
|
DecompressionJob(
|
|
ECompressionFormat _fmt,
|
|
const uint8 *_inBuf, uint8 *_outBuf,
|
|
uint32 _width, uint32 _height)
|
|
: m_Format(_fmt)
|
|
, m_InBuf(_inBuf)
|
|
, m_OutBuf(_outBuf)
|
|
, m_Width(_width)
|
|
, m_Height(_height)
|
|
{ }
|
|
};
|
|
|
|
// A structure for maintaining a list of textures to compress.
|
|
class CompressionJobList {
|
|
public:
|
|
|
|
// Initialize the list by specifying the total number of jobs that it will contain.
|
|
// This constructor allocates the necessary memory to hold the array.
|
|
CompressionJobList(const uint32 nJobs);
|
|
~CompressionJobList();
|
|
|
|
// Overrides to deal with memory management.
|
|
CompressionJobList(const CompressionJobList &);
|
|
CompressionJobList &operator =(const CompressionJobList &);
|
|
|
|
// Add a job to the list. This function returns false on failure.
|
|
bool AddJob(const CompressionJob &);
|
|
|
|
// Get the maximum number of jobs that this list can hold.
|
|
uint32 GetTotalNumJobs() const { return m_TotalNumJobs; }
|
|
|
|
// Get the current number of jobs in the list.
|
|
uint32 GetNumJobs() const { return m_NumJobs; }
|
|
|
|
// Returns the specified job.
|
|
const CompressionJob *GetJob(uint32 idx) const;
|
|
uint32 *GetFinishedFlag(uint32 idx) const;
|
|
|
|
private:
|
|
CompressionJob *m_Jobs;
|
|
uint32 m_NumJobs;
|
|
const uint32 m_TotalNumJobs;
|
|
|
|
struct FinishedFlag{
|
|
ALIGN(32) uint32 m_flag;
|
|
} *m_FinishedFlags;
|
|
|
|
public:
|
|
ALIGN(32) uint32 m_CurrentJobIndex;
|
|
ALIGN(32) uint32 m_CurrentBlockIndex;
|
|
};
|
|
|
|
} // namespace FasTC
|
|
#endif // __COMPRESSION_JOBS_H__
|