s_aaline.c File Reference

#include "main/glheader.h"
#include "main/imports.h"
#include "main/macros.h"
#include "main/mtypes.h"
#include "swrast/s_aaline.h"
#include "swrast/s_context.h"
#include "swrast/s_span.h"
#include "swrast/swrast.h"
#include "s_aalinetemp.h"

Data Structures
struct	LineInfo
Defines
#define	SUB_PIXEL   4
#define	SOLVE_PLANE(X, Y, PLANE)   ((PLANE[3] + PLANE[0] * (X) + PLANE[1] * (Y)) / -PLANE[2])
#define	NAME(x)   aa_ci_##x
#define	DO_Z
#define	DO_ATTRIBS
#define	DO_INDEX
#define	NAME(x)   aa_rgba_##x
#define	DO_Z
#define	DO_RGBA
#define	NAME(x)   aa_general_rgba_##x
#define	DO_Z
#define	DO_RGBA
#define	DO_ATTRIBS
Typedefs
typedef void(*	plot_func )(GLcontext *ctx, struct LineInfo *line, int ix, int iy)
Functions
static void	compute_plane (GLfloat x0, GLfloat y0, GLfloat x1, GLfloat y1, GLfloat z0, GLfloat z1, GLfloat plane[4])
static INLINE void	constant_plane (GLfloat value, GLfloat plane[4])
static INLINE GLfloat	solve_plane (GLfloat x, GLfloat y, const GLfloat plane[4])
static INLINE GLfloat	solve_plane_recip (GLfloat x, GLfloat y, const GLfloat plane[4])
static INLINE GLchan	solve_plane_chan (GLfloat x, GLfloat y, const GLfloat plane[4])
static INLINE GLfloat	compute_lambda (const GLfloat sPlane[4], const GLfloat tPlane[4], GLfloat invQ, GLfloat width, GLfloat height)
static void	make_sample_table (GLint xSamples, GLint ySamples, GLfloat samples[][2])
static GLfloat	compute_coveragef (const struct LineInfo *info, GLint winx, GLint winy)
static GLfloat	compute_coveragei (const struct LineInfo *info, GLint winx, GLint winy)
	Compute coverage value for color index mode.
static void	segment (GLcontext *ctx, struct LineInfo *line, plot_func plot, GLfloat t0, GLfloat t1)
void	_swrast_choose_aa_line_function (GLcontext *ctx)

---

Define Documentation

#define DO_ATTRIBS

#define DO_ATTRIBS

#define DO_INDEX

#define DO_RGBA

#define DO_RGBA

#define DO_Z

#define DO_Z

#define DO_Z

#define NAME

(

x

)

aa_general_rgba_##x

#define NAME

(

x

)

aa_rgba_##x

#define NAME

(

x

)

aa_ci_##x

#define SOLVE_PLANE	(	X,
		Y,
		PLANE		)	((PLANE[3] + PLANE[0] * (X) + PLANE[1] * (Y)) / -PLANE[2])

#define SUB_PIXEL   4

---

Typedef Documentation

typedef void(* plot_func)(GLcontext *ctx, struct LineInfo *line, int ix, int iy)

---

Function Documentation

void _swrast_choose_aa_line_function

(

GLcontext *

ctx

)

static GLfloat compute_coveragef	(	const struct LineInfo *	info,
		GLint	winx,
		GLint	winy
	)			[static]

static GLfloat compute_coveragei	(	const struct LineInfo *	info,
		GLint	winx,
		GLint	winy
	)			[static]

Compute coverage value for color index mode.

XXX this may not be quite correct.

Returns:

coverage in [0,15].

static INLINE GLfloat compute_lambda	(	const GLfloat	sPlane[4],
		const GLfloat	tPlane[4],
		GLfloat	invQ,
		GLfloat	width,
		GLfloat	height
	)			[static]

static void compute_plane	(	GLfloat	x0,
		GLfloat	y0,
		GLfloat	x1,
		GLfloat	y1,
		GLfloat	z0,
		GLfloat	z1,
		GLfloat	plane[4]
	)			[static]

static INLINE void constant_plane	(	GLfloat	value,
		GLfloat	plane[4]
	)			[static]

static void make_sample_table	(	GLint	xSamples,
		GLint	ySamples,
		GLfloat	samples[][2]
	)			[static]

static void segment	(	GLcontext *	ctx,
		struct LineInfo *	line,
		plot_func	plot,
		GLfloat	t0,
		GLfloat	t1
	)			[static]

static INLINE GLfloat solve_plane	(	GLfloat	x,
		GLfloat	y,
		const GLfloat	plane[4]
	)			[static]

static INLINE GLchan solve_plane_chan	(	GLfloat	x,
		GLfloat	y,
		const GLfloat	plane[4]
	)			[static]

static INLINE GLfloat solve_plane_recip	(	GLfloat	x,
		GLfloat	y,
		const GLfloat	plane[4]
	)			[static]

---