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 tracker */
 100    unsigned reduced_api_prim;
 101
 102    /**
 103     * The reduced primitive after unfilled triangles, wide-line decomposition,
 104     * etc, are taken into account.  This is the primitive type that's actually
 105     * rasterized.
 106     */
 107    unsigned reduced_prim;
 108
 109    /** Derived from scissor and surface bounds: */
 110    struct pipe_scissor_state cliprect;
 111
 112    unsigned line_stipple_counter;
 113
 114    /** Software quad rendering pipeline */
 115    struct {
 116       struct quad_stage *shade;
 117       struct quad_stage *depth_test;
 118       struct quad_stage *blend;
 119       struct quad_stage *first; /**< points to one of the above stages */
 120    } quad;
 121
 122    /** TGSI exec things */
 123    struct {
 124       struct sp_sampler_varient *vert_samplers_list[PIPE_MAX_SAMPLERS];
 125       struct sp_sampler_varient *frag_samplers_list[PIPE_MAX_SAMPLERS];
 126    } tgsi;
 127
 128    /** The primitive drawing context */
 129    struct draw_context *draw;
 130
 131    /** Draw module backend */
 132    struct vbuf_render *vbuf_backend;
 133    struct draw_stage *vbuf;
 134
 135    boolean dirty_render_cache;
 136
 137    struct softpipe_tile_cache *cbuf_cache[PIPE_MAX_COLOR_BUFS];
 138    struct softpipe_tile_cache *zsbuf_cache;
 139
 140    unsigned tex_timestamp;
 141    struct softpipe_tex_tile_cache *tex_cache[PIPE_MAX_SAMPLERS];
 142
 143    unsigned use_sse : 1;
 144    unsigned dump_fs : 1;
 145    unsigned no_rast : 1;
 146 };
 147
 148
 149 static INLINE struct softpipe_context *
 150 softpipe_context( struct pipe_context *pipe )
 151 {
 152    return (struct softpipe_context *)pipe;
 153 }
 154
 155 void
 156 softpipe_reset_sampler_varients(struct softpipe_context *softpipe);
 157
 158
 159 #endif /* SP_CONTEXT_H */