diff options
Diffstat (limited to 'source/Irrlicht/CImageLoaderTGA.cpp')
| -rw-r--r-- | source/Irrlicht/CImageLoaderTGA.cpp | 237 |
1 files changed, 0 insertions, 237 deletions
diff --git a/source/Irrlicht/CImageLoaderTGA.cpp b/source/Irrlicht/CImageLoaderTGA.cpp deleted file mode 100644 index c9b3a9d..0000000 --- a/source/Irrlicht/CImageLoaderTGA.cpp +++ /dev/null @@ -1,237 +0,0 @@ -// Copyright (C) 2002-2012 Nikolaus Gebhardt
-// This file is part of the "Irrlicht Engine".
-// For conditions of distribution and use, see copyright notice in irrlicht.h
-
-#include "CImageLoaderTGA.h"
-
-#ifdef _IRR_COMPILE_WITH_TGA_LOADER_
-
-#include "IReadFile.h"
-#include "os.h"
-#include "CColorConverter.h"
-#include "CImage.h"
-#include "irrString.h"
-
-
-namespace irr
-{
-namespace video
-{
-
-
-//! returns true if the file maybe is able to be loaded by this class
-//! based on the file extension (e.g. ".tga")
-bool CImageLoaderTGA::isALoadableFileExtension(const io::path& filename) const
-{
- return core::hasFileExtension ( filename, "tga" );
-}
-
-
-//! loads a compressed tga.
-u8 *CImageLoaderTGA::loadCompressedImage(io::IReadFile *file, const STGAHeader& header) const
-{
- // This was written and sent in by Jon Pry, thank you very much!
- // I only changed the formatting a little bit.
-
- s32 bytesPerPixel = header.PixelDepth/8;
- s32 imageSize = header.ImageHeight * header.ImageWidth * bytesPerPixel;
- u8* data = new u8[imageSize];
- s32 currentByte = 0;
-
- while(currentByte < imageSize)
- {
- u8 chunkheader = 0;
- file->read(&chunkheader, sizeof(u8)); // Read The Chunk's Header
-
- if(chunkheader < 128) // If The Chunk Is A 'RAW' Chunk
- {
- chunkheader++; // Add 1 To The Value To Get Total Number Of Raw Pixels
-
- file->read(&data[currentByte], bytesPerPixel * chunkheader);
- currentByte += bytesPerPixel * chunkheader;
- }
- else
- {
- // thnx to neojzs for some fixes with this code
-
- // If It's An RLE Header
- chunkheader -= 127; // Subtract 127 To Get Rid Of The ID Bit
-
- s32 dataOffset = currentByte;
- file->read(&data[dataOffset], bytesPerPixel);
-
- currentByte += bytesPerPixel;
-
- for(s32 counter = 1; counter < chunkheader; counter++)
- {
- for(s32 elementCounter=0; elementCounter < bytesPerPixel; elementCounter++)
- data[currentByte + elementCounter] = data[dataOffset + elementCounter];
-
- currentByte += bytesPerPixel;
- }
- }
- }
-
- return data;
-}
-
-
-
-//! returns true if the file maybe is able to be loaded by this class
-bool CImageLoaderTGA::isALoadableFileFormat(io::IReadFile* file) const
-{
- if (!file)
- return false;
-
- STGAFooter footer;
- memset(&footer, 0, sizeof(STGAFooter));
- file->seek(file->getSize()-sizeof(STGAFooter));
- file->read(&footer, sizeof(STGAFooter));
- return (!strcmp(footer.Signature,"TRUEVISION-XFILE.")); // very old tgas are refused.
-}
-
-
-
-//! creates a surface from the file
-IImage* CImageLoaderTGA::loadImage(io::IReadFile* file) const
-{
- STGAHeader header;
- u32 *palette = 0;
-
- file->read(&header, sizeof(STGAHeader));
-
-#ifdef __BIG_ENDIAN__
- header.ColorMapLength = os::Byteswap::byteswap(header.ColorMapLength);
- header.ImageWidth = os::Byteswap::byteswap(header.ImageWidth);
- header.ImageHeight = os::Byteswap::byteswap(header.ImageHeight);
-#endif
-
- // skip image identification field
- if (header.IdLength)
- file->seek(header.IdLength, true);
-
- if (header.ColorMapType)
- {
- // create 32 bit palette
- palette = new u32[ header.ColorMapLength];
-
- // read color map
- u8 * colorMap = new u8[header.ColorMapEntrySize/8 * header.ColorMapLength];
- file->read(colorMap,header.ColorMapEntrySize/8 * header.ColorMapLength);
-
- // convert to 32-bit palette
- switch ( header.ColorMapEntrySize )
- {
- case 16:
- CColorConverter::convert_A1R5G5B5toA8R8G8B8(colorMap, header.ColorMapLength, palette);
- break;
- case 24:
- CColorConverter::convert_B8G8R8toA8R8G8B8(colorMap, header.ColorMapLength, palette);
- break;
- case 32:
- CColorConverter::convert_B8G8R8A8toA8R8G8B8(colorMap, header.ColorMapLength, palette);
- break;
- }
- delete [] colorMap;
- }
-
- // read image
-
- u8* data = 0;
-
- if ( header.ImageType == 1 || // Uncompressed, color-mapped images.
- header.ImageType == 2 || // Uncompressed, RGB images
- header.ImageType == 3 // Uncompressed, black and white images
- )
- {
- const s32 imageSize = header.ImageHeight * header.ImageWidth * header.PixelDepth/8;
- data = new u8[imageSize];
- file->read(data, imageSize);
- }
- else
- if(header.ImageType == 10)
- {
- // Runlength encoded RGB images
- data = loadCompressedImage(file, header);
- }
- else
- {
- os::Printer::log("Unsupported TGA file type", file->getFileName(), ELL_ERROR);
- delete [] palette;
- return 0;
- }
-
- IImage* image = 0;
-
- switch(header.PixelDepth)
- {
- case 8:
- {
- if (header.ImageType==3) // grey image
- {
- image = new CImage(ECF_R8G8B8,
- core::dimension2d<u32>(header.ImageWidth, header.ImageHeight));
- if (image)
- CColorConverter::convert8BitTo24Bit((u8*)data,
- (u8*)image->getData(),
- header.ImageWidth,header.ImageHeight,
- 0, 0, (header.ImageDescriptor&0x20)==0);
- }
- else
- {
- image = new CImage(ECF_A1R5G5B5,
- core::dimension2d<u32>(header.ImageWidth, header.ImageHeight));
- if (image)
- CColorConverter::convert8BitTo16Bit((u8*)data,
- (s16*)image->getData(),
- header.ImageWidth,header.ImageHeight,
- (s32*) palette, 0,
- (header.ImageDescriptor&0x20)==0);
- }
- }
- break;
- case 16:
- image = new CImage(ECF_A1R5G5B5,
- core::dimension2d<u32>(header.ImageWidth, header.ImageHeight));
- if (image)
- CColorConverter::convert16BitTo16Bit((s16*)data,
- (s16*)image->getData(), header.ImageWidth, header.ImageHeight, 0, (header.ImageDescriptor&0x20)==0);
- break;
- case 24:
- image = new CImage(ECF_R8G8B8,
- core::dimension2d<u32>(header.ImageWidth, header.ImageHeight));
- if (image)
- CColorConverter::convert24BitTo24Bit(
- (u8*)data, (u8*)image->getData(), header.ImageWidth, header.ImageHeight, 0, (header.ImageDescriptor&0x20)==0, true);
- break;
- case 32:
- image = new CImage(ECF_A8R8G8B8,
- core::dimension2d<u32>(header.ImageWidth, header.ImageHeight));
- if (image)
- CColorConverter::convert32BitTo32Bit((s32*)data,
- (s32*)image->getData(), header.ImageWidth, header.ImageHeight, 0, (header.ImageDescriptor&0x20)==0);
- break;
- default:
- os::Printer::log("Unsupported TGA format", file->getFileName(), ELL_ERROR);
- break;
- }
-
- delete [] data;
- delete [] palette;
-
- return image;
-}
-
-
-//! creates a loader which is able to load tgas
-IImageLoader* createImageLoaderTGA()
-{
- return new CImageLoaderTGA();
-}
-
-
-} // end namespace video
-} // end namespace irr
-
-#endif
-
|