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/**************************************************************************
*
* Copyright 2007 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.
*
**************************************************************************/
/**
* \brief Public interface into the drawing module.
*/
/* Authors: Keith Whitwell <keith@tungstengraphics.com>
*/
#ifndef DRAW_CONTEXT_H
#define DRAW_CONTEXT_H
#include "pipe/p_state.h"
struct pipe_context;
struct vertex_buffer;
struct vertex_info;
struct draw_context;
struct draw_stage;
struct draw_vertex_shader;
/**
* Clipmask flags
*/
/*@{*/
#define CLIP_RIGHT_BIT 0x01
#define CLIP_LEFT_BIT 0x02
#define CLIP_TOP_BIT 0x04
#define CLIP_BOTTOM_BIT 0x08
#define CLIP_NEAR_BIT 0x10
#define CLIP_FAR_BIT 0x20
/*@}*/
/**
* Bitshift for each clip flag
*/
/*@{*/
#define CLIP_RIGHT_SHIFT 0
#define CLIP_LEFT_SHIFT 1
#define CLIP_TOP_SHIFT 2
#define CLIP_BOTTOM_SHIFT 3
#define CLIP_NEAR_SHIFT 4
#define CLIP_FAR_SHIFT 5
/*@}*/
struct draw_context *draw_create( void );
void draw_destroy( struct draw_context *draw );
void draw_set_viewport_state( struct draw_context *draw,
const struct pipe_viewport_state *viewport );
void draw_set_clip_state( struct draw_context *pipe,
const struct pipe_clip_state *clip );
void draw_set_rasterizer_state( struct draw_context *draw,
const struct pipe_rasterizer_state *raster );
void draw_set_rasterize_stage( struct draw_context *draw,
struct draw_stage *stage );
void draw_wide_point_threshold(struct draw_context *draw, float threshold);
void draw_convert_wide_points(struct draw_context *draw, boolean enable);
void draw_convert_wide_lines(struct draw_context *draw, boolean enable);
boolean draw_use_sse(struct draw_context *draw);
void
draw_install_aaline_stage(struct draw_context *draw, struct pipe_context *pipe);
void
draw_install_aapoint_stage(struct draw_context *draw, struct pipe_context *pipe);
void
draw_install_pstipple_stage(struct draw_context *draw, struct pipe_context *pipe);
int
draw_find_vs_output(struct draw_context *draw,
uint semantic_name, uint semantic_index);
uint
draw_num_vs_outputs(struct draw_context *draw);
/*
* Vertex shader functions
*/
struct draw_vertex_shader *
draw_create_vertex_shader(struct draw_context *draw,
const struct pipe_shader_state *shader);
void draw_bind_vertex_shader(struct draw_context *draw,
struct draw_vertex_shader *dvs);
void draw_delete_vertex_shader(struct draw_context *draw,
struct draw_vertex_shader *dvs);
/*
* Vertex data functions
*/
void draw_set_vertex_buffer(struct draw_context *draw,
unsigned attr,
const struct pipe_vertex_buffer *buffer);
void draw_set_vertex_element(struct draw_context *draw,
unsigned attr,
const struct pipe_vertex_element *element);
void draw_set_mapped_element_buffer( struct draw_context *draw,
unsigned eltSize, void *elements );
void draw_set_mapped_vertex_buffer(struct draw_context *draw,
unsigned attr, const void *buffer);
void draw_set_mapped_constant_buffer(struct draw_context *draw,
const void *buffer);
/***********************************************************************
* draw_prim.c
*/
void draw_arrays(struct draw_context *draw, unsigned prim,
unsigned start, unsigned count);
void draw_flush(struct draw_context *draw);
/***********************************************************************
* draw_debug.c
*/
boolean draw_validate_prim( unsigned prim, unsigned length );
unsigned draw_trim_prim( unsigned mode, unsigned count );
#endif /* DRAW_CONTEXT_H */
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