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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 SP_CONTEXT_H
#define SP_CONTEXT_H
#include "pipe/p_context.h"
#include "pipe/p_defines.h"
#include "draw/draw_vertex.h"
#include "sp_quad.h"
/**
* This is a temporary variable for testing draw-stage polygon stipple.
* If zero, do stipple in sp_quad_stipple.c
*/
#define USE_DRAW_STAGE_PSTIPPLE 1
struct softpipe_winsys;
struct softpipe_vbuf_render;
struct draw_context;
struct draw_stage;
struct softpipe_tile_cache;
struct sp_fragment_shader;
struct sp_vertex_shader;
struct softpipe_context {
struct pipe_context pipe; /**< base class */
struct softpipe_winsys *winsys; /**< window system interface */
/* The most recent drawing state as set by the driver:
*/
const struct pipe_blend_state *blend;
const struct pipe_sampler_state *sampler[PIPE_MAX_SAMPLERS];
const struct pipe_depth_stencil_alpha_state *depth_stencil;
const struct pipe_rasterizer_state *rasterizer;
const struct sp_fragment_shader *fs;
const struct sp_vertex_shader *vs;
struct pipe_blend_color blend_color;
struct pipe_clip_state clip;
struct pipe_constant_buffer constants[2];
struct pipe_framebuffer_state framebuffer;
struct pipe_poly_stipple poly_stipple;
struct pipe_scissor_state scissor;
struct pipe_texture *texture[PIPE_MAX_SAMPLERS];
struct pipe_viewport_state viewport;
struct pipe_vertex_buffer vertex_buffer[PIPE_ATTRIB_MAX];
struct pipe_vertex_element vertex_element[PIPE_ATTRIB_MAX];
unsigned dirty;
unsigned num_samplers;
unsigned num_textures;
/* Counter for occlusion queries. Note this supports overlapping
* queries.
*/
uint64 occlusion_count;
/*
* Mapped vertex buffers
*/
ubyte *mapped_vbuffer[PIPE_ATTRIB_MAX];
/** Mapped constant buffers */
void *mapped_constants[PIPE_SHADER_TYPES];
/** Vertex format */
struct vertex_info vertex_info;
struct vertex_info vertex_info_vbuf;
int psize_slot;
#if 0
/* Stipple derived state:
*/
ubyte stipple_masks[16][16];
#endif
/** Derived from scissor and surface bounds: */
struct pipe_scissor_state cliprect;
unsigned line_stipple_counter;
/** Software quad rendering pipeline */
struct {
struct quad_stage *polygon_stipple;
struct quad_stage *earlyz;
struct quad_stage *shade;
struct quad_stage *alpha_test;
struct quad_stage *stencil_test;
struct quad_stage *depth_test;
struct quad_stage *occlusion;
struct quad_stage *coverage;
struct quad_stage *bufloop;
struct quad_stage *blend;
struct quad_stage *colormask;
struct quad_stage *output;
struct quad_stage *first; /**< points to one of the above stages */
} quad;
/** The primitive drawing context */
struct draw_context *draw;
struct draw_stage *setup;
struct draw_stage *vbuf;
struct softpipe_vbuf_render *vbuf_render;
uint current_cbuf; /**< current color buffer being written to */
struct softpipe_tile_cache *cbuf_cache[PIPE_MAX_COLOR_BUFS];
struct softpipe_tile_cache *zsbuf_cache;
struct softpipe_tile_cache *tex_cache[PIPE_MAX_SAMPLERS];
int use_sse : 1;
int dump_fs : 1;
};
static INLINE struct softpipe_context *
softpipe_context( struct pipe_context *pipe )
{
return (struct softpipe_context *)pipe;
}
#endif /* SP_CONTEXT_H */
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