src/gallium/drivers/llvmpipe/lp_context.h

   1 /**************************************************************************
   2  *
   3  * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
   4  * All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the
   8  * "Software"), to deal in the Software without restriction, including
   9  * without limitation the rights to use, copy, modify, merge, publish,
  10  * distribute, sub license, and/or sell copies of the Software, and to
  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
  13  *
  14  * The above copyright notice and this permission notice (including the
  15  * next paragraph) shall be included in all copies or substantial portions
  16  * of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  21  * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
  22  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  23  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  24  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  **************************************************************************/
  27
  28 /* Authors:  Keith Whitwell <keith@tungstengraphics.com>
  29  */
  30
  31 #ifndef LP_CONTEXT_H
  32 #define LP_CONTEXT_H
  33
  34 #include "pipe/p_context.h"
  35
  36 #include "draw/draw_vertex.h"
  37
  38 #include "lp_tex_sample.h"
  39
  40
  41 struct llvmpipe_vbuf_render;
  42 struct draw_context;
  43 struct draw_stage;
  44 struct llvmpipe_tile_cache;
  45 struct llvmpipe_tex_tile_cache;
  46 struct lp_fragment_shader;
  47 struct lp_vertex_shader;
  48 struct lp_blend_state;
  49
  50
  51 struct llvmpipe_context {
  52    struct pipe_context pipe;  /**< base class */
  53
  54    /** Constant state objects */
  55    struct lp_blend_state *blend;
  56    const struct pipe_sampler_state *sampler[PIPE_MAX_SAMPLERS];
  57    const struct pipe_depth_stencil_alpha_state *depth_stencil;
  58    const struct pipe_rasterizer_state *rasterizer;
  59    struct lp_fragment_shader *fs;
  60    const struct lp_vertex_shader *vs;
  61
  62    /** Other rendering state */
  63    uint8_t ALIGN16_ATTRIB blend_color[4][16];
  64    struct pipe_clip_state clip;
  65    struct pipe_constant_buffer constants[PIPE_SHADER_TYPES];
  66    struct pipe_framebuffer_state framebuffer;
  67    struct pipe_poly_stipple poly_stipple;
  68    struct pipe_scissor_state scissor;
  69    struct pipe_texture *texture[PIPE_MAX_SAMPLERS];
  70    struct pipe_viewport_state viewport;
  71    struct pipe_vertex_buffer vertex_buffer[PIPE_MAX_ATTRIBS];
  72    struct pipe_vertex_element vertex_element[PIPE_MAX_ATTRIBS];
  73
  74    unsigned num_samplers;
  75    unsigned num_textures;
  76    unsigned num_vertex_elements;
  77    unsigned num_vertex_buffers;
  78
  79    unsigned dirty; /**< Mask of LP_NEW_x flags */
  80
  81    /* Counter for occlusion queries.  Note this supports overlapping
  82     * queries.
  83     */
  84    uint64_t occlusion_count;
  85    unsigned active_query_count;
  86
  87    /** Mapped vertex buffers */
  88    ubyte *mapped_vbuffer[PIPE_MAX_ATTRIBS];
  89
  90    /** Mapped constant buffers */
  91    void *mapped_constants[PIPE_SHADER_TYPES];
  92
  93    /** Vertex format */
  94    struct vertex_info vertex_info;
  95    struct vertex_info vertex_info_vbuf;
  96
  97    /** Which vertex shader output slot contains point size */
  98    int psize_slot;
  99
 100    /* The reduced version of the primitive supplied by the state
 101     * tracker.
 102     */
 103    unsigned reduced_api_prim;
 104
 105    /* The reduced primitive after unfilled triangles, wide-line
 106     * decomposition, etc, are taken into account.  This is the
 107     * primitive actually rasterized.
 108     */
 109    unsigned reduced_prim;
 110
 111    /** Derived from scissor and surface bounds: */
 112    struct pipe_scissor_state cliprect;
 113
 114    unsigned line_stipple_counter;
 115
 116    /** TGSI exec things */
 117    struct {
 118       struct lp_shader_sampler vert_samplers[PIPE_MAX_SAMPLERS];
 119       struct lp_shader_sampler *vert_samplers_list[PIPE_MAX_SAMPLERS];
 120       struct lp_shader_sampler frag_samplers[PIPE_MAX_SAMPLERS];
 121       struct lp_shader_sampler *frag_samplers_list[PIPE_MAX_SAMPLERS];
 122    } tgsi;
 123
 124    /** The primitive drawing context */
 125    struct draw_context *draw;
 126    struct draw_stage *setup;
 127    struct draw_stage *vbuf;
 128    struct llvmpipe_vbuf_render *vbuf_render;
 129
 130    boolean dirty_render_cache;
 131
 132    struct llvmpipe_tile_cache *cbuf_cache[PIPE_MAX_COLOR_BUFS];
 133
 134    /* TODO: we shouldn't be using external interfaces internally like this */
 135    struct pipe_transfer *zsbuf_transfer;
 136    uint8_t *zsbuf_map;
 137
 138    unsigned tex_timestamp;
 139    struct llvmpipe_tex_tile_cache *tex_cache[PIPE_MAX_SAMPLERS];
 140
 141    unsigned no_rast : 1;
 142 };
 143
 144
 145 static INLINE struct llvmpipe_context *
 146 llvmpipe_context( struct pipe_context *pipe )
 147 {
 148    return (struct llvmpipe_context *)pipe;
 149 }
 150
 151 #endif /* LP_CONTEXT_H */
 152