s_texfilter.c File Reference

#include "main/glheader.h"
#include "main/context.h"
#include "main/colormac.h"
#include "main/imports.h"
#include "main/texformat.h"
#include "s_context.h"
#include "s_texfilter.h"

Go to the source code of this file.

Defines
#define	FRAC(f)   ((f) - IFLOOR(f))
#define	ILERP_SCALE   65536.0F
#define	ILERP_SHIFT   16
#define	LERP(T, A, B)   ( (A) + (T) * ((B) - (A)) )
#define	ILERP(IT, A, B)   ( (A) + (((IT) * ((B) - (A))) >> ILERP_SHIFT) )
#define	REMAINDER(A, B)   ((unsigned) (A) % (unsigned) (B))
#define	I0BIT   1
#define	I1BIT   2
#define	J0BIT   4
#define	J1BIT   8
#define	K0BIT   16
#define	K1BIT   32
Functions
static INLINE GLfloat	lerp_2d (GLfloat a, GLfloat b, GLfloat v00, GLfloat v10, GLfloat v01, GLfloat v11)
static INLINE GLint	ilerp_2d (GLint ia, GLint ib, GLint v00, GLint v10, GLint v01, GLint v11)
static INLINE GLfloat	lerp_3d (GLfloat a, GLfloat b, GLfloat c, GLfloat v000, GLfloat v100, GLfloat v010, GLfloat v110, GLfloat v001, GLfloat v101, GLfloat v011, GLfloat v111)
static INLINE GLint	ilerp_3d (GLint ia, GLint ib, GLint ic, GLint v000, GLint v100, GLint v010, GLint v110, GLint v001, GLint v101, GLint v011, GLint v111)
static INLINE void	lerp_rgba (GLchan result[4], GLfloat t, const GLchan a[4], const GLchan b[4])
static INLINE void	lerp_rgba_2d (GLchan result[4], GLfloat a, GLfloat b, const GLchan t00[4], const GLchan t10[4], const GLchan t01[4], const GLchan t11[4])
static INLINE void	lerp_rgba_3d (GLchan result[4], GLfloat a, GLfloat b, GLfloat c, const GLchan t000[4], const GLchan t100[4], const GLchan t010[4], const GLchan t110[4], const GLchan t001[4], const GLchan t101[4], const GLchan t011[4], const GLchan t111[4])
static INLINE void	linear_texel_locations (GLenum wrapMode, const struct gl_texture_image *img, GLint size, GLfloat s, GLint *i0, GLint *i1, GLfloat *weight)
static INLINE GLint	nearest_texel_location (GLenum wrapMode, const struct gl_texture_image *img, GLint size, GLfloat s)
static INLINE void	linear_repeat_texel_location (GLuint size, GLfloat s, GLint *i0, GLint *i1, GLfloat *weight)
static INLINE GLint	linear_mipmap_level (const struct gl_texture_object *tObj, GLfloat lambda)
static INLINE GLint	nearest_mipmap_level (const struct gl_texture_object *tObj, GLfloat lambda)
static INLINE void	compute_min_mag_ranges (const struct gl_texture_object *tObj, GLuint n, const GLfloat lambda[], GLuint *minStart, GLuint *minEnd, GLuint *magStart, GLuint *magEnd)
static INLINE void	sample_1d_nearest (GLcontext *ctx, const struct gl_texture_object *tObj, const struct gl_texture_image *img, const GLfloat texcoord[4], GLchan rgba[4])
static INLINE void	sample_1d_linear (GLcontext *ctx, const struct gl_texture_object *tObj, const struct gl_texture_image *img, const GLfloat texcoord[4], GLchan rgba[4])
static void	sample_1d_nearest_mipmap_nearest (GLcontext *ctx, const struct gl_texture_object *tObj, GLuint n, const GLfloat texcoord[][4], const GLfloat lambda[], GLchan rgba[][4])
static void	sample_1d_linear_mipmap_nearest (GLcontext *ctx, const struct gl_texture_object *tObj, GLuint n, const GLfloat texcoord[][4], const GLfloat lambda[], GLchan rgba[][4])
static void	sample_1d_nearest_mipmap_linear (GLcontext *ctx, const struct gl_texture_object *tObj, GLuint n, const GLfloat texcoord[][4], const GLfloat lambda[], GLchan rgba[][4])
static void	sample_1d_linear_mipmap_linear (GLcontext *ctx, const struct gl_texture_object *tObj, GLuint n, const GLfloat texcoord[][4], const GLfloat lambda[], GLchan rgba[][4])
static void	sample_nearest_1d (GLcontext *ctx, const struct gl_texture_object *tObj, GLuint n, const GLfloat texcoords[][4], const GLfloat lambda[], GLchan rgba[][4])
static void	sample_linear_1d (GLcontext *ctx, const struct gl_texture_object *tObj, GLuint n, const GLfloat texcoords[][4], const GLfloat lambda[], GLchan rgba[][4])
static void	sample_lambda_1d (GLcontext *ctx, const struct gl_texture_object *tObj, GLuint n, const GLfloat texcoords[][4], const GLfloat lambda[], GLchan rgba[][4])
static INLINE void	sample_2d_nearest (GLcontext *ctx, const struct gl_texture_object *tObj, const struct gl_texture_image *img, const GLfloat texcoord[4], GLchan rgba[])
static INLINE void	sample_2d_linear (GLcontext *ctx, const struct gl_texture_object *tObj, const struct gl_texture_image *img, const GLfloat texcoord[4], GLchan rgba[])
static INLINE void	sample_2d_linear_repeat (GLcontext *ctx, const struct gl_texture_object *tObj, const struct gl_texture_image *img, const GLfloat texcoord[4], GLchan rgba[])
static void	sample_2d_nearest_mipmap_nearest (GLcontext *ctx, const struct gl_texture_object *tObj, GLuint n, const GLfloat texcoord[][4], const GLfloat lambda[], GLchan rgba[][4])
static void	sample_2d_linear_mipmap_nearest (GLcontext *ctx, const struct gl_texture_object *tObj, GLuint n, const GLfloat texcoord[][4], const GLfloat lambda[], GLchan rgba[][4])
static void	sample_2d_nearest_mipmap_linear (GLcontext *ctx, const struct gl_texture_object *tObj, GLuint n, const GLfloat texcoord[][4], const GLfloat lambda[], GLchan rgba[][4])
static void	sample_2d_linear_mipmap_linear (GLcontext *ctx, const struct gl_texture_object *tObj, GLuint n, const GLfloat texcoord[][4], const GLfloat lambda[], GLchan rgba[][4])
static void	sample_2d_linear_mipmap_linear_repeat (GLcontext *ctx, const struct gl_texture_object *tObj, GLuint n, const GLfloat texcoord[][4], const GLfloat lambda[], GLchan rgba[][4])
static void	sample_nearest_2d (GLcontext *ctx, const struct gl_texture_object *tObj, GLuint n, const GLfloat texcoords[][4], const GLfloat lambda[], GLchan rgba[][4])
static void	sample_linear_2d (GLcontext *ctx, const struct gl_texture_object *tObj, GLuint n, const GLfloat texcoords[][4], const GLfloat lambda[], GLchan rgba[][4])
static void	opt_sample_rgb_2d (GLcontext *ctx, const struct gl_texture_object *tObj, GLuint n, const GLfloat texcoords[][4], const GLfloat lambda[], GLchan rgba[][4])
static void	opt_sample_rgba_2d (GLcontext *ctx, const struct gl_texture_object *tObj, GLuint n, const GLfloat texcoords[][4], const GLfloat lambda[], GLchan rgba[][4])
static void	sample_lambda_2d (GLcontext *ctx, const struct gl_texture_object *tObj, GLuint n, const GLfloat texcoords[][4], const GLfloat lambda[], GLchan rgba[][4])
static INLINE void	sample_3d_nearest (GLcontext *ctx, const struct gl_texture_object *tObj, const struct gl_texture_image *img, const GLfloat texcoord[4], GLchan rgba[4])
static void	sample_3d_linear (GLcontext *ctx, const struct gl_texture_object *tObj, const struct gl_texture_image *img, const GLfloat texcoord[4], GLchan rgba[4])
static void	sample_3d_nearest_mipmap_nearest (GLcontext *ctx, const struct gl_texture_object *tObj, GLuint n, const GLfloat texcoord[][4], const GLfloat lambda[], GLchan rgba[][4])
static void	sample_3d_linear_mipmap_nearest (GLcontext *ctx, const struct gl_texture_object *tObj, GLuint n, const GLfloat texcoord[][4], const GLfloat lambda[], GLchan rgba[][4])
static void	sample_3d_nearest_mipmap_linear (GLcontext *ctx, const struct gl_texture_object *tObj, GLuint n, const GLfloat texcoord[][4], const GLfloat lambda[], GLchan rgba[][4])
static void	sample_3d_linear_mipmap_linear (GLcontext *ctx, const struct gl_texture_object *tObj, GLuint n, const GLfloat texcoord[][4], const GLfloat lambda[], GLchan rgba[][4])
static void	sample_nearest_3d (GLcontext *ctx, const struct gl_texture_object *tObj, GLuint n, const GLfloat texcoords[][4], const GLfloat lambda[], GLchan rgba[][4])
static void	sample_linear_3d (GLcontext *ctx, const struct gl_texture_object *tObj, GLuint n, const GLfloat texcoords[][4], const GLfloat lambda[], GLchan rgba[][4])
static void	sample_lambda_3d (GLcontext *ctx, const struct gl_texture_object *tObj, GLuint n, const GLfloat texcoords[][4], const GLfloat lambda[], GLchan rgba[][4])
static struct gl_texture_image **	choose_cube_face (const struct gl_texture_object *texObj, const GLfloat texcoord[4], GLfloat newCoord[4])
static void	sample_nearest_cube (GLcontext *ctx, const struct gl_texture_object *tObj, GLuint n, const GLfloat texcoords[][4], const GLfloat lambda[], GLchan rgba[][4])
static void	sample_linear_cube (GLcontext *ctx, const struct gl_texture_object *tObj, GLuint n, const GLfloat texcoords[][4], const GLfloat lambda[], GLchan rgba[][4])
static void	sample_cube_nearest_mipmap_nearest (GLcontext *ctx, const struct gl_texture_object *tObj, GLuint n, const GLfloat texcoord[][4], const GLfloat lambda[], GLchan rgba[][4])
static void	sample_cube_linear_mipmap_nearest (GLcontext *ctx, const struct gl_texture_object *tObj, GLuint n, const GLfloat texcoord[][4], const GLfloat lambda[], GLchan rgba[][4])
static void	sample_cube_nearest_mipmap_linear (GLcontext *ctx, const struct gl_texture_object *tObj, GLuint n, const GLfloat texcoord[][4], const GLfloat lambda[], GLchan rgba[][4])
static void	sample_cube_linear_mipmap_linear (GLcontext *ctx, const struct gl_texture_object *tObj, GLuint n, const GLfloat texcoord[][4], const GLfloat lambda[], GLchan rgba[][4])
static void	sample_lambda_cube (GLcontext *ctx, const struct gl_texture_object *tObj, GLuint n, const GLfloat texcoords[][4], const GLfloat lambda[], GLchan rgba[][4])
static INLINE GLint	clamp_rect_coord_nearest (GLenum wrapMode, GLfloat coord, GLint max)
static INLINE void	clamp_rect_coord_linear (GLenum wrapMode, GLfloat coord, GLint max, GLint *i0out, GLint *i1out, GLfloat *weight)
static void	sample_nearest_rect (GLcontext *ctx, const struct gl_texture_object *tObj, GLuint n, const GLfloat texcoords[][4], const GLfloat lambda[], GLchan rgba[][4])
static void	sample_linear_rect (GLcontext *ctx, const struct gl_texture_object *tObj, GLuint n, const GLfloat texcoords[][4], const GLfloat lambda[], GLchan rgba[][4])
static void	sample_lambda_rect (GLcontext *ctx, const struct gl_texture_object *tObj, GLuint n, const GLfloat texcoords[][4], const GLfloat lambda[], GLchan rgba[][4])
static void	sample_2d_array_nearest (GLcontext *ctx, const struct gl_texture_object *tObj, const struct gl_texture_image *img, const GLfloat texcoord[4], GLchan rgba[4])
static void	sample_2d_array_linear (GLcontext *ctx, const struct gl_texture_object *tObj, const struct gl_texture_image *img, const GLfloat texcoord[4], GLchan rgba[4])
static void	sample_2d_array_nearest_mipmap_nearest (GLcontext *ctx, const struct gl_texture_object *tObj, GLuint n, const GLfloat texcoord[][4], const GLfloat lambda[], GLchan rgba[][4])
static void	sample_2d_array_linear_mipmap_nearest (GLcontext *ctx, const struct gl_texture_object *tObj, GLuint n, const GLfloat texcoord[][4], const GLfloat lambda[], GLchan rgba[][4])
static void	sample_2d_array_nearest_mipmap_linear (GLcontext *ctx, const struct gl_texture_object *tObj, GLuint n, const GLfloat texcoord[][4], const GLfloat lambda[], GLchan rgba[][4])
static void	sample_2d_array_linear_mipmap_linear (GLcontext *ctx, const struct gl_texture_object *tObj, GLuint n, const GLfloat texcoord[][4], const GLfloat lambda[], GLchan rgba[][4])
static void	sample_nearest_2d_array (GLcontext *ctx, const struct gl_texture_object *tObj, GLuint n, const GLfloat texcoords[][4], const GLfloat lambda[], GLchan rgba[][4])
static void	sample_linear_2d_array (GLcontext *ctx, const struct gl_texture_object *tObj, GLuint n, const GLfloat texcoords[][4], const GLfloat lambda[], GLchan rgba[][4])
static void	sample_lambda_2d_array (GLcontext *ctx, const struct gl_texture_object *tObj, GLuint n, const GLfloat texcoords[][4], const GLfloat lambda[], GLchan rgba[][4])
static void	sample_1d_array_nearest (GLcontext *ctx, const struct gl_texture_object *tObj, const struct gl_texture_image *img, const GLfloat texcoord[4], GLchan rgba[4])
static void	sample_1d_array_linear (GLcontext *ctx, const struct gl_texture_object *tObj, const struct gl_texture_image *img, const GLfloat texcoord[4], GLchan rgba[4])
static void	sample_1d_array_nearest_mipmap_nearest (GLcontext *ctx, const struct gl_texture_object *tObj, GLuint n, const GLfloat texcoord[][4], const GLfloat lambda[], GLchan rgba[][4])
static void	sample_1d_array_linear_mipmap_nearest (GLcontext *ctx, const struct gl_texture_object *tObj, GLuint n, const GLfloat texcoord[][4], const GLfloat lambda[], GLchan rgba[][4])
static void	sample_1d_array_nearest_mipmap_linear (GLcontext *ctx, const struct gl_texture_object *tObj, GLuint n, const GLfloat texcoord[][4], const GLfloat lambda[], GLchan rgba[][4])
static void	sample_1d_array_linear_mipmap_linear (GLcontext *ctx, const struct gl_texture_object *tObj, GLuint n, const GLfloat texcoord[][4], const GLfloat lambda[], GLchan rgba[][4])
static void	sample_nearest_1d_array (GLcontext *ctx, const struct gl_texture_object *tObj, GLuint n, const GLfloat texcoords[][4], const GLfloat lambda[], GLchan rgba[][4])
static void	sample_linear_1d_array (GLcontext *ctx, const struct gl_texture_object *tObj, GLuint n, const GLfloat texcoords[][4], const GLfloat lambda[], GLchan rgba[][4])
static void	sample_lambda_1d_array (GLcontext *ctx, const struct gl_texture_object *tObj, GLuint n, const GLfloat texcoords[][4], const GLfloat lambda[], GLchan rgba[][4])
static void	sample_depth_texture (GLcontext *ctx, const struct gl_texture_object *tObj, GLuint n, const GLfloat texcoords[][4], const GLfloat lambda[], GLchan texel[][4])
static void	null_sample_func (GLcontext *ctx, const struct gl_texture_object *tObj, GLuint n, const GLfloat texcoords[][4], const GLfloat lambda[], GLchan rgba[][4])
texture_sample_func	_swrast_choose_texture_sample_func (GLcontext *ctx, const struct gl_texture_object *t)