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/**************************************************************************
*
* Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sub license, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
* IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
**************************************************************************/
/*
* Authors:
* Keith Whitwell <keith@tungstengraphics.com>
*/
#ifndef ST_PROGRAM_H
#define ST_PROGRAM_H
#include "main/mtypes.h"
#include "shader/program.h"
#include "pipe/p_shader_tokens.h"
struct cso_fragment_shader;
struct cso_vertex_shader;
struct translated_vertex_program;
/**
* Derived from Mesa gl_fragment_program:
*/
struct st_fragment_program
{
struct gl_fragment_program Base;
GLuint serialNo;
struct pipe_shader_state tgsi;
void *driver_shader;
/** Program prefixed with glBitmap prologue */
struct st_fragment_program *bitmap_program;
uint bitmap_sampler;
};
struct st_vp_varient_key
{
boolean passthrough_edgeflags;
};
/**
* This represents a vertex program, especially translated to match
* the inputs of a particular fragment shader.
*/
struct st_vp_varient
{
/* Parameters which generated this translated version of a vertex
* shader:
*/
struct st_vp_varient_key key;
/**
* TGSI tokens (to later generate a 'draw' module shader for
* selection/feedback/rasterpos)
*/
struct pipe_shader_state tgsi;
/** Driver's compiled shader */
void *driver_shader;
/** For using our private draw module (glRasterPos) */
struct draw_vertex_shader *draw_shader;
/** Next in linked list */
struct st_vp_varient *next;
/** similar to that in st_vertex_program, but with information about edgeflags too */
GLuint num_inputs;
};
/**
* Derived from Mesa gl_fragment_program:
*/
struct st_vertex_program
{
struct gl_vertex_program Base; /**< The Mesa vertex program */
GLuint serialNo, lastSerialNo;
/** maps a Mesa VERT_ATTRIB_x to a packed TGSI input index */
GLuint input_to_index[VERT_ATTRIB_MAX];
/** maps a TGSI input index back to a Mesa VERT_ATTRIB_x */
GLuint index_to_input[PIPE_MAX_SHADER_INPUTS];
GLuint num_inputs;
/** Maps VERT_RESULT_x to slot */
GLuint result_to_output[VERT_RESULT_MAX];
ubyte output_semantic_name[VERT_RESULT_MAX];
ubyte output_semantic_index[VERT_RESULT_MAX];
GLuint num_outputs;
/** List of translated varients of this vertex program.
*/
struct st_vp_varient *varients;
};
static INLINE struct st_fragment_program *
st_fragment_program( struct gl_fragment_program *fp )
{
return (struct st_fragment_program *)fp;
}
static INLINE struct st_vertex_program *
st_vertex_program( struct gl_vertex_program *vp )
{
return (struct st_vertex_program *)vp;
}
static INLINE void
st_reference_vertprog(struct st_context *st,
struct st_vertex_program **ptr,
struct st_vertex_program *prog)
{
_mesa_reference_program(st->ctx,
(struct gl_program **) ptr,
(struct gl_program *) prog);
}
static INLINE void
st_reference_fragprog(struct st_context *st,
struct st_fragment_program **ptr,
struct st_fragment_program *prog)
{
_mesa_reference_program(st->ctx,
(struct gl_program **) ptr,
(struct gl_program *) prog);
}
extern void
st_translate_fragment_program(struct st_context *st,
struct st_fragment_program *fp);
/* Called after program string change, discard all previous
* compilation results.
*/
extern void
st_prepare_vertex_program(struct st_context *st,
struct st_vertex_program *stvp);
extern struct st_vp_varient *
st_translate_vertex_program(struct st_context *st,
struct st_vertex_program *stvp,
const struct st_vp_varient_key *key);
void
st_vp_release_varients( struct st_context *st,
struct st_vertex_program *stvp );
extern void
st_print_shaders(GLcontext *ctx);
#endif
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