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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"
#include "tgsi/tgsi_exec.h"
struct pipe_context;
struct draw_context;
struct draw_stage;
struct draw_vertex_shader;
struct draw_geometry_shader;
struct draw_fragment_shader;
struct tgsi_sampler;
#define DRAW_MAX_TEXTURE_LEVELS 13 /* 4K x 4K for now */
struct draw_context *draw_create( struct pipe_context *pipe );
void draw_destroy( struct draw_context *draw );
void draw_flush(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 *rast_handle );
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_wide_point_sprites(struct draw_context *draw, boolean draw_sprite);
void draw_wide_line_threshold(struct draw_context *draw, float threshold);
void draw_enable_line_stipple(struct draw_context *draw, boolean enable);
void draw_enable_point_sprites(struct draw_context *draw, boolean enable);
void draw_set_mrd(struct draw_context *draw, double mrd);
boolean
draw_install_aaline_stage(struct draw_context *draw, struct pipe_context *pipe);
boolean
draw_install_aapoint_stage(struct draw_context *draw, struct pipe_context *pipe);
boolean
draw_install_pstipple_stage(struct draw_context *draw, struct pipe_context *pipe);
int
draw_find_shader_output(const struct draw_context *draw,
uint semantic_name, uint semantic_index);
uint
draw_num_shader_outputs(const struct draw_context *draw);
void
draw_texture_samplers(struct draw_context *draw,
uint shader_type,
uint num_samplers,
struct tgsi_sampler **samplers);
void
draw_set_sampler_views(struct draw_context *draw,
struct pipe_sampler_view **views,
unsigned num);
void
draw_set_samplers(struct draw_context *draw,
struct pipe_sampler_state **samplers,
unsigned num);
void
draw_set_mapped_texture(struct draw_context *draw,
unsigned sampler_idx,
uint32_t width, uint32_t height, uint32_t depth,
uint32_t last_level,
uint32_t row_stride[DRAW_MAX_TEXTURE_LEVELS],
uint32_t img_stride[DRAW_MAX_TEXTURE_LEVELS],
const void *data[DRAW_MAX_TEXTURE_LEVELS]);
/*
* 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);
/*
* Fragment shader functions
*/
struct draw_fragment_shader *
draw_create_fragment_shader(struct draw_context *draw,
const struct pipe_shader_state *shader);
void draw_bind_fragment_shader(struct draw_context *draw,
struct draw_fragment_shader *dvs);
void draw_delete_fragment_shader(struct draw_context *draw,
struct draw_fragment_shader *dvs);
/*
* Geometry shader functions
*/
struct draw_geometry_shader *
draw_create_geometry_shader(struct draw_context *draw,
const struct pipe_shader_state *shader);
void draw_bind_geometry_shader(struct draw_context *draw,
struct draw_geometry_shader *dvs);
void draw_delete_geometry_shader(struct draw_context *draw,
struct draw_geometry_shader *dvs);
/*
* Vertex data functions
*/
void draw_set_vertex_buffers(struct draw_context *draw,
unsigned count,
const struct pipe_vertex_buffer *buffers);
void draw_set_vertex_elements(struct draw_context *draw,
unsigned count,
const struct pipe_vertex_element *elements);
void draw_set_index_buffer(struct draw_context *draw,
const struct pipe_index_buffer *ib);
void draw_set_mapped_index_buffer(struct draw_context *draw,
const 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,
unsigned shader_type,
unsigned slot,
const void *buffer,
unsigned size);
void
draw_set_mapped_so_buffers(struct draw_context *draw,
void *buffers[PIPE_MAX_SO_BUFFERS],
unsigned num_buffers);
void
draw_set_so_state(struct draw_context *draw,
struct pipe_stream_output_state *state);
/***********************************************************************
* draw_pt.c
*/
void draw_vbo(struct draw_context *draw,
const struct pipe_draw_info *info);
void draw_arrays(struct draw_context *draw, unsigned prim,
unsigned start, unsigned count);
void
draw_arrays_instanced(struct draw_context *draw,
unsigned mode,
unsigned start,
unsigned count,
unsigned startInstance,
unsigned instanceCount);
/*******************************************************************************
* Driver backend interface
*/
struct vbuf_render;
void draw_set_render( struct draw_context *draw,
struct vbuf_render *render );
void draw_set_driver_clipping( struct draw_context *draw,
boolean bypass_clip_xy,
boolean bypass_clip_z );
void draw_set_force_passthrough( struct draw_context *draw,
boolean enable );
/*******************************************************************************
* Draw pipeline
*/
boolean draw_need_pipeline(const struct draw_context *draw,
const struct pipe_rasterizer_state *rasterizer,
unsigned prim );
static INLINE int
draw_get_shader_param(unsigned shader, enum pipe_cap param)
{
switch(shader) {
case PIPE_SHADER_VERTEX:
case PIPE_SHADER_GEOMETRY:
return tgsi_exec_get_shader_param(param);
default:
return 0;
}
}
#endif /* DRAW_CONTEXT_H */
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