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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.
*
**************************************************************************/
/* Authors: Keith Whitwell <keith@tungstengraphics.com>
*/
#ifndef LP_CONTEXT_H
#define LP_CONTEXT_H
#include "pipe/p_context.h"
#include "draw/draw_vertex.h"
#include "lp_tex_sample.h"
#include "lp_jit.h"
#include "lp_setup.h"
#include "lp_state_fs.h"
#include "lp_state_setup.h"
struct llvmpipe_vbuf_render;
struct draw_context;
struct draw_stage;
struct lp_fragment_shader;
struct lp_vertex_shader;
struct lp_blend_state;
struct lp_setup_context;
struct lp_setup_variant;
struct lp_velems_state;
struct llvmpipe_context {
struct pipe_context pipe; /**< base class */
/** Constant state objects */
const struct pipe_blend_state *blend;
const struct pipe_sampler_state *sampler[PIPE_MAX_SAMPLERS];
struct pipe_sampler_state *vertex_samplers[PIPE_MAX_VERTEX_SAMPLERS];
const struct pipe_depth_stencil_alpha_state *depth_stencil;
const struct pipe_rasterizer_state *rasterizer;
struct lp_fragment_shader *fs;
const struct lp_vertex_shader *vs;
const struct lp_geometry_shader *gs;
const struct lp_velems_state *velems;
const struct lp_so_state *so;
/** Other rendering state */
struct pipe_blend_color blend_color;
struct pipe_stencil_ref stencil_ref;
struct pipe_clip_state clip;
struct pipe_resource *constants[PIPE_SHADER_TYPES][PIPE_MAX_CONSTANT_BUFFERS];
struct pipe_framebuffer_state framebuffer;
struct pipe_poly_stipple poly_stipple;
struct pipe_scissor_state scissor;
struct pipe_sampler_view *fragment_sampler_views[PIPE_MAX_SAMPLERS];
struct pipe_sampler_view *vertex_sampler_views[PIPE_MAX_VERTEX_SAMPLERS];
struct pipe_viewport_state viewport;
struct pipe_vertex_buffer vertex_buffer[PIPE_MAX_ATTRIBS];
struct pipe_index_buffer index_buffer;
struct {
struct llvmpipe_resource *buffer[PIPE_MAX_SO_BUFFERS];
int offset[PIPE_MAX_SO_BUFFERS];
int so_count[PIPE_MAX_SO_BUFFERS];
int num_buffers;
} so_target;
struct pipe_resource *mapped_vs_tex[PIPE_MAX_VERTEX_SAMPLERS];
unsigned num_samplers;
unsigned num_fragment_sampler_views;
unsigned num_vertex_samplers;
unsigned num_vertex_sampler_views;
unsigned num_vertex_buffers;
unsigned dirty; /**< Mask of LP_NEW_x flags */
int active_query_count;
/** Mapped vertex buffers */
ubyte *mapped_vbuffer[PIPE_MAX_ATTRIBS];
/** Vertex format */
struct vertex_info vertex_info;
/** Which vertex shader output slot contains color */
int color_slot[2];
/** Which vertex shader output slot contains bcolor */
int bcolor_slot[2];
/** Which vertex shader output slot contains point size */
int psize_slot;
/**< minimum resolvable depth value, for polygon offset */
double mrd;
/** The tiling engine */
struct lp_setup_context *setup;
struct lp_setup_variant setup_variant;
/** The primitive drawing context */
struct draw_context *draw;
unsigned tex_timestamp;
boolean no_rast;
/** List of all fragment shader variants */
struct lp_fs_variant_list_item fs_variants_list;
unsigned nr_fs_variants;
/** JIT code generation */
struct gallivm_state *gallivm;
LLVMTypeRef jit_context_ptr_type;
struct lp_setup_variant_list_item setup_variants_list;
unsigned nr_setup_variants;
};
/**
* Fragment and setup variant count, used to trigger garbage collection.
* This is global since all variants in all contexts will be free when
* we do garbage collection.
*/
extern unsigned llvmpipe_variant_count;
struct pipe_context *
llvmpipe_create_context( struct pipe_screen *screen, void *priv );
static INLINE struct llvmpipe_context *
llvmpipe_context( struct pipe_context *pipe )
{
return (struct llvmpipe_context *)pipe;
}
#endif /* LP_CONTEXT_H */
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