mirror of
https://github.com/yuzu-emu/FasTC.git
synced 2024-11-30 19:54:17 +01:00
Add .astc file loader
This commit is contained in:
Pavel Krajcevski
parent
d3afd51b3d
commit
0cac0c5c0a
@ -99,6 +99,11 @@ SET( HEADERS ${HEADERS} "src/ImageLoaderKTX.h" )
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SET( SOURCES ${SOURCES} "src/ImageWriterKTX.cpp" )
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SET( HEADERS ${HEADERS} "src/ImageWriterKTX.h" )
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# Add ASTC loader
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# This supports the Mali ASTC evaluation codec.
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SET( SOURCES ${SOURCES} "src/ImageLoaderASTC.cpp" )
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SET( HEADERS ${HEADERS} "src/ImageLoaderASTC.h" )
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FIND_PACKAGE( OpenGL )
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IF(OPENGL_FOUND)
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INCLUDE_DIRECTORIES( ${OPENGL_INCLUDE_DIRS} )
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@ -49,6 +49,7 @@ enum EImageFileFormat {
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eFileFormat_PVR,
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eFileFormat_TGA,
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eFileFormat_KTX,
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eFileFormat_ASTC,
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kNumImageFileFormats
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};
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@ -66,6 +66,7 @@
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#endif
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#include "ImageLoaderTGA.h"
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#include "ImageLoaderASTC.h"
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#include "ImageLoaderKTX.h"
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#include "ImageWriterKTX.h"
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@ -213,6 +214,10 @@ FasTC::Image<> *ImageFile::LoadImage() const {
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loader = new ImageLoaderKTX(m_FileData, m_FileDataSz);
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break;
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case eFileFormat_ASTC:
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loader = new ImageLoaderASTC(m_FileData, m_FileDataSz);
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break;
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default:
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fprintf(stderr, "Unable to load image: unknown file format.\n");
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return NULL;
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@ -264,6 +269,9 @@ EImageFileFormat ImageFile::DetectFileFormat(const CHAR *filename) {
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else if(strcmp(ext, ".ktx") == 0) {
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return eFileFormat_KTX;
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}
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else if(strcmp(ext, ".astc") == 0) {
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return eFileFormat_ASTC;
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}
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return kNumImageFileFormats;
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}
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233
IO/src/ImageLoaderASTC.cpp
Normal file
233
IO/src/ImageLoaderASTC.cpp
Normal file
@ -0,0 +1,233 @@
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/* FasTC
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* Copyright (c) 2014 University of North Carolina at Chapel Hill.
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* All rights reserved.
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*
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* Permission to use, copy, modify, and distribute this software and its
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* documentation for educational, research, and non-profit purposes, without
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* fee, and without a written agreement is hereby granted, provided that the
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* above copyright notice, this paragraph, and the following four paragraphs
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* appear in all copies.
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*
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* Permission to incorporate this software into commercial products may be
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* obtained by contacting the authors or the Office of Technology Development
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* at the University of North Carolina at Chapel Hill <otd@unc.edu>.
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*
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* This software program and documentation are copyrighted by the University of
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* North Carolina at Chapel Hill. The software program and documentation are
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* supplied "as is," without any accompanying services from the University of
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* North Carolina at Chapel Hill or the authors. The University of North
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* Carolina at Chapel Hill and the authors do not warrant that the operation of
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* the program will be uninterrupted or error-free. The end-user understands
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* that the program was developed for research purposes and is advised not to
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* rely exclusively on the program for any reason.
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*
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* IN NO EVENT SHALL THE UNIVERSITY OF NORTH CAROLINA AT CHAPEL HILL OR THE
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* AUTHORS BE LIABLE TO ANY PARTY FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL,
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* OR CONSEQUENTIAL DAMAGES, INCLUDING LOST PROFITS, ARISING OUT OF THE USE OF
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* THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF THE UNIVERSITY OF NORTH CAROLINA
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* AT CHAPEL HILL OR THE AUTHORS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH
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* DAMAGE.
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*
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* THE UNIVERSITY OF NORTH CAROLINA AT CHAPEL HILL AND THE AUTHORS SPECIFICALLY
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* DISCLAIM ANY WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE AND ANY
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* STATUTORY WARRANTY OF NON-INFRINGEMENT. THE SOFTWARE PROVIDED HEREUNDER IS ON
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* AN "AS IS" BASIS, AND THE UNIVERSITY OF NORTH CAROLINA AT CHAPEL HILL AND
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* THE AUTHORS HAVE NO OBLIGATIONS TO PROVIDE MAINTENANCE, SUPPORT, UPDATES,
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* ENHANCEMENTS, OR MODIFICATIONS.
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*
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* Please send all BUG REPORTS to <pavel@cs.unc.edu>.
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*
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* The authors may be contacted via:
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*
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* Pavel Krajcevski
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* Dept of Computer Science
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* 201 S Columbia St
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* Frederick P. Brooks, Jr. Computer Science Bldg
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* Chapel Hill, NC 27599-3175
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* USA
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*
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* <http://gamma.cs.unc.edu/FasTC/>
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*/
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#include "ImageLoaderASTC.h"
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#include <algorithm>
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#include <cassert>
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#include <cstdio>
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#include <cstring>
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#include <iostream>
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#include "TexCompTypes.h"
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#include "CompressionFormat.h"
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#include "ScopedAllocator.h"
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#include "GLDefines.h"
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#include "Image.h"
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#include "CompressedImage.h"
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static bool GetFormatForBlockDimensions(FasTC::ECompressionFormat &out,
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uint32 blockWidth, uint32 blockHeight) {
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switch((blockWidth << 4) | blockHeight) {
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case ((4 << 4) | 4):
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out = FasTC::eCompressionFormat_ASTC4x4;
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break;
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case ((5 << 4) | 4):
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out = FasTC::eCompressionFormat_ASTC5x4;
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break;
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case ((5 << 4) | 5):
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out = FasTC::eCompressionFormat_ASTC5x5;
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break;
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case ((6 << 4) | 5):
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out = FasTC::eCompressionFormat_ASTC6x5;
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break;
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case ((6 << 4) | 6):
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out = FasTC::eCompressionFormat_ASTC6x6;
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break;
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case ((8 << 4) | 5):
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out = FasTC::eCompressionFormat_ASTC8x5;
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break;
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case ((8 << 4) | 6):
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out = FasTC::eCompressionFormat_ASTC8x6;
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break;
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case ((8 << 4) | 8):
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out = FasTC::eCompressionFormat_ASTC8x8;
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break;
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case ((10 << 4) | 5):
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out = FasTC::eCompressionFormat_ASTC10x5;
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break;
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case ((10 << 4) | 6):
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out = FasTC::eCompressionFormat_ASTC10x6;
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break;
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case ((10 << 4) | 8):
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out = FasTC::eCompressionFormat_ASTC10x8;
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break;
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case ((10 << 4) | 10):
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out = FasTC::eCompressionFormat_ASTC10x10;
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break;
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case ((12 << 4) | 10):
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out = FasTC::eCompressionFormat_ASTC12x10;
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break;
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case ((12 << 4) | 12):
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out = FasTC::eCompressionFormat_ASTC12x12;
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break;
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default:
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fprintf(stderr, "Unsupported block dimensions (%d, %d)\n", blockWidth, blockHeight);
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return false;
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}
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return true;
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}
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ImageLoaderASTC::ImageLoaderASTC(const uint8 *rawData, const int32 rawDataSz)
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: ImageLoader(rawData, rawDataSz), m_BlockSizeX(0), m_BlockSizeY(0)
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{ }
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ImageLoaderASTC::~ImageLoaderASTC() { }
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FasTC::Image<> *ImageLoaderASTC::LoadImage() {
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// Get rid of the pixel data if it exists...
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if(m_PixelData) {
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delete m_PixelData;
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m_PixelData = NULL;
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}
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if(!ReadData()) {
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return NULL;
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}
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FasTC::ECompressionFormat fmt;
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if(!GetFormatForBlockDimensions(fmt, m_BlockSizeX, m_BlockSizeY)) {
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return NULL;
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}
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return new CompressedImage(m_Width, m_Height, fmt, m_PixelData);
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}
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template <typename T>
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static inline void Reverse(T &v) {
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uint8 *vp = reinterpret_cast<uint8 *>(&v);
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for(uint32 i = 0; i < sizeof(T) >> 1; i++) {
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std::swap(vp[i], vp[sizeof(T) - 1 - i]);
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}
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}
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uint32 ReadThreeWideInt(const uint8 *data, const bool bLittleEndian) {
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uint32 result = *(reinterpret_cast<const uint32 *>(data));
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if(!bLittleEndian) {
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Reverse(result);
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}
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result &= 0xFFFFFF;
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return result;
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}
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bool ImageLoaderASTC::ReadData() {
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const uint8 *data = m_RawData;
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uint32 magic = reinterpret_cast<const uint32 *>(data)[0];
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// Read the magic bytes at the beginning.
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bool bLittleEndian = m_RawData[0] == (magic & 0xFF);
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bool OK = false;
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if(bLittleEndian && magic == 0x5CA1AB13) {
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OK = true;
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} else if(!bLittleEndian && magic == 0x13ABA15C) {
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OK = true;
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}
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if(!OK) return false;
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data += 4;
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// The next byte is the block width
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uint8 blockWidth = *data;
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data++;
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uint8 blockHeight = *data;
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data++;
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uint8 blockDepth = *data;
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data++;
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assert(blockWidth <= 12);
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assert(blockHeight <= 12);
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if(blockDepth != 1) {
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fprintf(stderr, "3D compressed textures unsupported!\n");
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return false;
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}
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uint32 pixelWidth = ReadThreeWideInt(data, bLittleEndian);
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data += 3;
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uint32 pixelHeight = ReadThreeWideInt(data, bLittleEndian);
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data += 3;
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uint32 pixelDepth = ReadThreeWideInt(data, bLittleEndian);
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data += 3;
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if(pixelDepth != 1) {
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fprintf(stderr, "3D compressed textures unsupported!\n");
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return false;
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}
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assert(data - m_RawData == 16);
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// Figure out the format based on the block size...
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FasTC::ECompressionFormat fmt;
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if(!GetFormatForBlockDimensions(fmt, blockWidth, blockHeight)) {
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return false;
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}
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m_BlockSizeX = blockWidth;
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m_BlockSizeY = blockHeight;
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m_Width = pixelWidth;
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m_Height = pixelHeight;
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uint32 uncompressedSize = pixelWidth * pixelHeight * 4;
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uint32 compressedSize = CompressedImage::GetCompressedSize(uncompressedSize, fmt);
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assert(compressedSize + 16 == m_NumRawDataBytes);
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m_PixelData = new uint8[compressedSize];
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memcpy(m_PixelData, data, compressedSize);
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return true;
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}
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70
IO/src/ImageLoaderASTC.h
Normal file
70
IO/src/ImageLoaderASTC.h
Normal file
@ -0,0 +1,70 @@
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/* FasTC
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* Copyright (c) 2014 University of North Carolina at Chapel Hill.
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* All rights reserved.
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*
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* Permission to use, copy, modify, and distribute this software and its
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* documentation for educational, research, and non-profit purposes, without
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* fee, and without a written agreement is hereby granted, provided that the
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* above copyright notice, this paragraph, and the following four paragraphs
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* appear in all copies.
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*
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* Permission to incorporate this software into commercial products may be
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* obtained by contacting the authors or the Office of Technology Development
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* at the University of North Carolina at Chapel Hill <otd@unc.edu>.
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*
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* This software program and documentation are copyrighted by the University of
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* North Carolina at Chapel Hill. The software program and documentation are
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* supplied "as is," without any accompanying services from the University of
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* North Carolina at Chapel Hill or the authors. The University of North
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* Carolina at Chapel Hill and the authors do not warrant that the operation of
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* the program will be uninterrupted or error-free. The end-user understands
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* that the program was developed for research purposes and is advised not to
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* rely exclusively on the program for any reason.
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*
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* IN NO EVENT SHALL THE UNIVERSITY OF NORTH CAROLINA AT CHAPEL HILL OR THE
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* AUTHORS BE LIABLE TO ANY PARTY FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL,
|
||||
* OR CONSEQUENTIAL DAMAGES, INCLUDING LOST PROFITS, ARISING OUT OF THE USE OF
|
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* 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
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* DAMAGE.
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*
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* 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
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||||
* STATUTORY WARRANTY OF NON-INFRINGEMENT. THE SOFTWARE PROVIDED HEREUNDER IS ON
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* AN "AS IS" BASIS, AND THE UNIVERSITY OF NORTH CAROLINA AT CHAPEL HILL AND
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* THE AUTHORS HAVE NO OBLIGATIONS TO PROVIDE MAINTENANCE, SUPPORT, UPDATES,
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||||
* ENHANCEMENTS, OR MODIFICATIONS.
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||||
*
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* Please send all BUG REPORTS to <pavel@cs.unc.edu>.
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*
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* The authors may be contacted via:
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*
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* Pavel Krajcevski
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* Dept of Computer Science
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* 201 S Columbia St
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* Frederick P. Brooks, Jr. Computer Science Bldg
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* Chapel Hill, NC 27599-3175
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* USA
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*
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* <http://gamma.cs.unc.edu/FasTC/>
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*/
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#ifndef _IO_SRC_IMAGE_LOADER_ASTC_H_
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#define _IO_SRC_IMAGE_LOADER_ASTC_H_
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#include "ImageLoader.h"
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class ImageLoaderASTC : public ImageLoader {
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private:
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uint8 m_BlockSizeX;
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uint8 m_BlockSizeY;
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public:
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ImageLoaderASTC(const uint8 *rawData, const int32 rawDataSz);
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virtual ~ImageLoaderASTC();
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virtual bool ReadData();
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virtual FasTC::Image<> *LoadImage();
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};
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#endif // _IO_SRC_IMAGE_LOADER_ASTC_H_
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