texcompress_fxt1.c File Reference

#include "glheader.h"
#include "imports.h"
#include "colormac.h"
#include "context.h"
#include "convolve.h"
#include "image.h"
#include "mipmap.h"
#include "texcompress.h"
#include "texformat.h"
#include "texstore.h"

Go to the source code of this file.

Data Structures
struct	Fx64
Defines
#define	MAX_COMP   4 /* ever needed maximum number of components in texel */
#define	MAX_VECT   4 /* ever needed maximum number of base vectors to find */
#define	N_TEXELS   32 /* number of texels in a block (always 32) */
#define	LL_N_REP   50 /* number of iterations in lloyd's vq */
#define	LL_RMS_D   10 /* fault tolerance (maximum delta) */
#define	LL_RMS_E   255 /* fault tolerance (maximum error) */
#define	ALPHA_TS   2 /* alpha threshold: (255 - ALPHA_TS) deemed opaque */
#define	ISTBLACK(v)   (*((GLuint *)(v)) == 0)
#define	FX64_NATIVE   0
#define	FX64_MOV32(a, b)   a.lo = b
#define	FX64_OR32(a, b)   a.lo |= b
#define	FX64_SHL(a, c)
#define	F(i)   (GLfloat)1 /* can be used to obtain an oblong metric: 0.30 / 0.59 / 0.11 */
#define	SAFECDOT   1 /* for paranoids */
#define	MAKEIVEC(NV, NC, IV, B, V0, V1)
#define	CALCCDOT(TEXEL, NV, NC, IV, B, V)
#define	CC_SEL(cc, which)   (((GLuint *)(cc))[(which) / 32] >> ((which) & 31))
#define	UP5(c)   _rgb_scale_5[(c) & 31]
#define	UP6(c, b)   _rgb_scale_6[(((c) & 31) << 1) | ((b) & 1)]
#define	LERP(n, t, c0, c1)   (((n) - (t)) * (c0) + (t) * (c1) + (n) / 2) / (n)
Functions
static void	fxt1_encode (GLuint width, GLuint height, GLint comps, const void *source, GLint srcRowStride, void *dest, GLint destRowStride)
void	fxt1_decode_1 (const void *texture, GLint stride, GLint i, GLint j, GLchan *rgba)
void	_mesa_init_texture_fxt1 (GLcontext *ctx)
static GLboolean	texstore_rgb_fxt1 (TEXSTORE_PARAMS)
static GLboolean	texstore_rgba_fxt1 (TEXSTORE_PARAMS)
static void	fetch_texel_2d_rgba_fxt1 (const struct gl_texture_image *texImage, GLint i, GLint j, GLint k, GLchan *texel)
static void	fetch_texel_2d_f_rgba_fxt1 (const struct gl_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel)
static void	fetch_texel_2d_rgb_fxt1 (const struct gl_texture_image *texImage, GLint i, GLint j, GLint k, GLchan *texel)
static void	fetch_texel_2d_f_rgb_fxt1 (const struct gl_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel)
static GLint	fxt1_bestcol (GLfloat vec[][MAX_COMP], GLint nv, GLubyte input[MAX_COMP], GLint nc)
static GLint	fxt1_worst (GLfloat vec[MAX_COMP], GLubyte input[N_TEXELS][MAX_COMP], GLint nc, GLint n)
static GLint	fxt1_variance (GLdouble variance[MAX_COMP], GLubyte input[N_TEXELS][MAX_COMP], GLint nc, GLint n)
static GLint	fxt1_choose (GLfloat vec[][MAX_COMP], GLint nv, GLubyte input[N_TEXELS][MAX_COMP], GLint nc, GLint n)
static GLint	fxt1_lloyd (GLfloat vec[][MAX_COMP], GLint nv, GLubyte input[N_TEXELS][MAX_COMP], GLint nc, GLint n)
static void	fxt1_quantize_CHROMA (GLuint *cc, GLubyte input[N_TEXELS][MAX_COMP])
static void	fxt1_quantize_ALPHA0 (GLuint *cc, GLubyte input[N_TEXELS][MAX_COMP], GLubyte reord[N_TEXELS][MAX_COMP], GLint n)
static void	fxt1_quantize_ALPHA1 (GLuint *cc, GLubyte input[N_TEXELS][MAX_COMP])
static void	fxt1_quantize_HI (GLuint *cc, GLubyte input[N_TEXELS][MAX_COMP], GLubyte reord[N_TEXELS][MAX_COMP], GLint n)
static void	fxt1_quantize_MIXED1 (GLuint *cc, GLubyte input[N_TEXELS][MAX_COMP])
static void	fxt1_quantize_MIXED0 (GLuint *cc, GLubyte input[N_TEXELS][MAX_COMP])
static void	fxt1_quantize (GLuint *cc, const GLubyte *lines[], GLint comps)
static void	fxt1_decode_1HI (const GLubyte *code, GLint t, GLchan *rgba)
static void	fxt1_decode_1CHROMA (const GLubyte *code, GLint t, GLchan *rgba)
static void	fxt1_decode_1MIXED (const GLubyte *code, GLint t, GLchan *rgba)
static void	fxt1_decode_1ALPHA (const GLubyte *code, GLint t, GLchan *rgba)
Variables
struct gl_texture_format	_mesa_texformat_rgb_fxt1
struct gl_texture_format	_mesa_texformat_rgba_fxt1
static const GLubyte	_rgb_scale_5 []
static const GLubyte	_rgb_scale_6 []

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Detailed Description

GL_EXT_texture_compression_fxt1 support.

Definition in file texcompress_fxt1.c.