s3tc.cpp File Reference

Manual S3TC DXTn decompression methods. More...

#include "src/common/util.h"
#include "src/common/readstream.h"
#include "src/graphics/images/s3tc.h"

Include dependency graph for s3tc.cpp:

Go to the source code of this file.

Classes
struct	Graphics::DXT1Texel
struct	Graphics::DXT23Texel
struct	Graphics::DXT45Texel

Namespaces
	Graphics

Macros
#define	READ_DXT1_TEXEL(x)
#define	READ_DXT3_TEXEL(x)
#define	READ_DXT5_TEXEL(x)

Functions
static uint32	Graphics::convert565To8888 (uint16 color)
static uint32	Graphics::interpolate32 (double weight, uint32 color_0, uint32 color_1)
void	Graphics::decompressDXT1 (byte *dest, Common::SeekableReadStream &src, uint32 width, uint32 height, uint32 pitch)
void	Graphics::decompressDXT3 (byte *dest, Common::SeekableReadStream &src, uint32 width, uint32 height, uint32 pitch)
static uint64	Graphics::readUint48LE (Common::SeekableReadStream &src)
void	Graphics::decompressDXT5 (byte *dest, Common::SeekableReadStream &src, uint32 width, uint32 height, uint32 pitch)

Detailed Description

Manual S3TC DXTn decompression methods.

Definition in file s3tc.cpp.

Macro Definition Documentation

READ_DXT1_TEXEL

#define READ_DXT1_TEXEL

(

x

)

Value:

x.color_0 = src.readUint16LE(); \
    x.color_1 = src.readUint16LE(); \
    x.pixels = src.readUint32BE()

Definition at line 59 of file s3tc.cpp.

Referenced by Graphics::decompressDXT1().

READ_DXT3_TEXEL

#define READ_DXT3_TEXEL

(

x

)

Value:

x.alpha[0] = src.readUint16LE(); \
    x.alpha[1] = src.readUint16LE(); \
    x.alpha[2] = src.readUint16LE(); \
    x.alpha[3] = src.readUint16LE(); \
    READ_DXT1_TEXEL(x)

Definition at line 107 of file s3tc.cpp.

Referenced by Graphics::decompressDXT3().

READ_DXT5_TEXEL

#define READ_DXT5_TEXEL

(

x

)

Value:

x.alpha_0 = src.readByte(); \
    x.alpha_1 = src.readByte(); \
    x.alphabl = readUint48LE(src); \
    READ_DXT1_TEXEL(x)

Definition at line 159 of file s3tc.cpp.

Referenced by Graphics::decompressDXT5().