src/gallium/drivers/softpipe/sp_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 SP_CONTEXT_H
  32 #define SP_CONTEXT_H
  33
  34 #include "pipe/p_context.h"
  35
  36 #include "draw/draw_vertex.h"
  37
  38 #include "sp_quad_pipe.h"
  39
  40
  41 struct softpipe_vbuf_render;
  42 struct draw_context;
  43 struct draw_stage;
  44 struct softpipe_tile_cache;
  45 struct softpipe_tex_tile_cache;
  46 struct sp_fragment_shader;
  47 struct sp_vertex_shader;
  48
  49
  50 struct softpipe_context {
  51    struct pipe_context pipe;  /**< base class */
  52
  53    /** Constant state objects */
  54    struct pipe_blend_state *blend;
  55    struct pipe_sampler_state *sampler[PIPE_MAX_SAMPLERS];
  56    struct pipe_depth_stencil_alpha_state *depth_stencil;
  57    struct pipe_rasterizer_state *rasterizer;
  58    struct sp_fragment_shader *fs;
  59    struct sp_vertex_shader *vs;
  60
  61    /** Other rendering state */
  62    struct pipe_blend_color blend_color;
  63    struct pipe_clip_state clip;
  64    struct pipe_constant_buffer constants[PIPE_SHADER_TYPES];
  65    struct pipe_framebuffer_state framebuffer;
  66    struct pipe_poly_stipple poly_stipple;
  67    struct pipe_scissor_state scissor;
  68    struct pipe_texture *texture[PIPE_MAX_SAMPLERS];
  69    struct pipe_viewport_state viewport;
  70    struct pipe_vertex_buffer vertex_buffer[PIPE_MAX_ATTRIBS];
  71    struct pipe_vertex_element vertex_element[PIPE_MAX_ATTRIBS];
  72
  73    unsigned num_samplers;
  74    unsigned num_textures;
  75    unsigned num_vertex_elements;
  76    unsigned num_vertex_buffers;
  77
  78    unsigned dirty; /**< Mask of SP_NEW_x flags */
  79
  80    /* Counter for occlusion queries.  Note this supports overlapping
  81     * queries.
  82     */
  83    uint64_t occlusion_count;
  84    unsigned active_query_count;
  85
  86    /** Mapped vertex buffers */
  87    ubyte *mapped_vbuffer[PIPE_MAX_ATTRIBS];
  88
  89    /** Mapped constant buffers */
  90    void *mapped_constants[PIPE_SHADER_TYPES];
  91
  92    /** Vertex format */
  93    struct vertex_info vertex_info;
  94    struct vertex_info vertex_info_vbuf;
  95
  96    /** Which vertex shader output slot contains point size */
  97    int psize_slot;
  98
  99    /* The reduced version of the primitive supplied by the state
 100     * tracker.
 101     */
 102    unsigned reduced_api_prim;
 103
 104    /* The reduced primitive after unfilled triangles, wide-line
 105     * decomposition, etc, are taken into account.  This is the
 106     * primitive actually rasterized.
 107     */
 108    unsigned reduced_prim;
 109
 110    /** Derived from scissor and surface bounds: */
 111    struct pipe_scissor_state cliprect;
 112
 113    unsigned line_stipple_counter;
 114
 115    /** Software quad rendering pipeline */
 116    struct {
 117       struct quad_stage *shade;
 118       struct quad_stage *depth_test;
 119       struct quad_stage *blend;
 120
 121       struct quad_stage *first; /**< points to one of the above stages */
 122    } quad;
 123
 124    /** TGSI exec things */
 125    struct {
 126       struct sp_sampler_varient *vert_samplers_list[PIPE_MAX_SAMPLERS];
 127       struct sp_sampler_varient *frag_samplers_list[PIPE_MAX_SAMPLERS];
 128    } tgsi;
 129
 130    /** The primitive drawing context */
 131    struct draw_context *draw;
 132
 133    /** Draw module backend */
 134    struct vbuf_render *vbuf_backend;
 135    struct draw_stage *vbuf;
 136
 137    boolean dirty_render_cache;
 138
 139    struct softpipe_tile_cache *cbuf_cache[PIPE_MAX_COLOR_BUFS];
 140    struct softpipe_tile_cache *zsbuf_cache;
 141
 142    unsigned tex_timestamp;
 143    struct softpipe_tex_tile_cache *tex_cache[PIPE_MAX_SAMPLERS];
 144
 145    unsigned use_sse : 1;
 146    unsigned dump_fs : 1;
 147    unsigned no_rast : 1;
 148 };
 149
 150
 151 static INLINE struct softpipe_context *
 152 softpipe_context( struct pipe_context *pipe )
 153 {
 154    return (struct softpipe_context *)pipe;
 155 }
 156
 157 void
 158 softpipe_reset_sampler_varients(struct softpipe_context *softpipe);
 159
 160
 161 #endif /* SP_CONTEXT_H */
 162