s_atifragshader.c File Reference

#include "main/glheader.h"
#include "main/colormac.h"
#include "main/context.h"
#include "main/macros.h"
#include "shader/program.h"
#include "shader/atifragshader.h"
#include "swrast/s_atifragshader.h"

Data Structures
struct	atifs_machine
	State for executing ATI fragment shader. More...
Defines
#define	SETUP_SRC_REG(optype, i, x)
Functions
static void	fetch_texel (GLcontext *ctx, const GLfloat texcoord[4], GLfloat lambda, GLuint unit, GLfloat color[4])
	Fetch a texel.
static void	apply_swizzle (GLfloat values[4], GLuint swizzle)
static void	apply_src_rep (GLint optype, GLuint rep, GLfloat *val)
static void	apply_src_mod (GLint optype, GLuint mod, GLfloat *val)
static void	apply_dst_mod (GLuint optype, GLuint mod, GLfloat *val)
static void	write_dst_addr (GLuint optype, GLuint mod, GLuint mask, GLfloat *src, GLfloat *dst)
static void	finish_pass (struct atifs_machine *machine)
static void	handle_pass_op (struct atifs_machine *machine, struct atifs_setupinst *texinst, const SWspan *span, GLuint column, GLuint idx)
static void	handle_sample_op (GLcontext *ctx, struct atifs_machine *machine, struct atifs_setupinst *texinst, const SWspan *span, GLuint column, GLuint idx)
static void	execute_shader (GLcontext *ctx, const struct ati_fragment_shader *shader, struct atifs_machine *machine, const SWspan *span, GLuint column)
	Execute the given fragment shader.
static void	init_machine (GLcontext *ctx, struct atifs_machine *machine, const struct ati_fragment_shader *shader, const SWspan *span, GLuint col)
	Init fragment shader virtual machine state.
void	_swrast_exec_fragment_shader (GLcontext *ctx, SWspan *span)
	Execute the current ATI shader program, operating on the given span.
Variables
struct ati_fs_opcode_st	ati_fs_opcodes []

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Define Documentation

#define SETUP_SRC_REG	(	optype,
		i,
		x		)

Value:

do {                                            \
   COPY_4V(src[optype][i], x);                  \
} while (0)

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Function Documentation

void _swrast_exec_fragment_shader	(	GLcontext *	ctx,
		SWspan *	span
	)

Execute the current ATI shader program, operating on the given span.

static void apply_dst_mod	(	GLuint	optype,
		GLuint	mod,
		GLfloat *	val
	)			[static]

static void apply_src_mod	(	GLint	optype,
		GLuint	mod,
		GLfloat *	val
	)			[static]

static void apply_src_rep	(	GLint	optype,
		GLuint	rep,
		GLfloat *	val
	)			[static]

static void apply_swizzle	(	GLfloat	values[4],
		GLuint	swizzle
	)			[static]

static void execute_shader	(	GLcontext *	ctx,
		const struct ati_fragment_shader *	shader,
		struct atifs_machine *	machine,
		const SWspan *	span,
		GLuint	column
	)			[static]

Execute the given fragment shader.

NOTE: we do everything in single-precision floating point

Parameters:

	ctx	- rendering context
	shader	- the shader to execute
	machine	- virtual machine state
	span	- the SWspan we're operating on
	column	- which pixel [i] we're operating on in the span

static void fetch_texel	(	GLcontext *	ctx,
		const GLfloat	texcoord[4],
		GLfloat	lambda,
		GLuint	unit,
		GLfloat	color[4]
	)			[static]

Fetch a texel.

static void finish_pass

(

struct atifs_machine *

machine

)

[static]

static void handle_pass_op	(	struct atifs_machine *	machine,
		struct atifs_setupinst *	texinst,
		const SWspan *	span,
		GLuint	column,
		GLuint	idx
	)			[static]

static void handle_sample_op	(	GLcontext *	ctx,
		struct atifs_machine *	machine,
		struct atifs_setupinst *	texinst,
		const SWspan *	span,
		GLuint	column,
		GLuint	idx
	)			[static]

static void init_machine	(	GLcontext *	ctx,
		struct atifs_machine *	machine,
		const struct ati_fragment_shader *	shader,
		const SWspan *	span,
		GLuint	col
	)			[static]

Init fragment shader virtual machine state.

static void write_dst_addr	(	GLuint	optype,
		GLuint	mod,
		GLuint	mask,
		GLfloat *	src,
		GLfloat *	dst
	)			[static]

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Variable Documentation

struct ati_fs_opcode_st ati_fs_opcodes[]

Initial value:

 {
   {GL_ADD_ATI, 2},
   {GL_SUB_ATI, 2},
   {GL_MUL_ATI, 2},
   {GL_MAD_ATI, 3},
   {GL_LERP_ATI, 3},
   {GL_MOV_ATI, 1},
   {GL_CND_ATI, 3},
   {GL_CND0_ATI, 3},
   {GL_DOT2_ADD_ATI, 3},
   {GL_DOT3_ATI, 2},
   {GL_DOT4_ATI, 2}
}

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