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_sampler_state *vertex_samplers[PIPE_MAX_VERTEX_SAMPLERS];
  57    struct pipe_depth_stencil_alpha_state *depth_stencil;
  58    struct pipe_rasterizer_state *rasterizer;
  59    struct sp_fragment_shader *fs;
  60    struct sp_vertex_shader *vs;
  61
  62    /** Other rendering state */
  63    struct pipe_blend_color blend_color;
  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_texture *vertex_textures[PIPE_MAX_VERTEX_SAMPLERS];
  71    struct pipe_viewport_state viewport;
  72    struct pipe_vertex_buffer vertex_buffer[PIPE_MAX_ATTRIBS];
  73    struct pipe_vertex_element vertex_element[PIPE_MAX_ATTRIBS];
  74
  75    unsigned num_samplers;
  76    unsigned num_textures;
  77    unsigned num_vertex_samplers;
  78    unsigned num_vertex_textures;
  79    unsigned num_vertex_elements;
  80    unsigned num_vertex_buffers;
  81
  82    unsigned dirty; /**< Mask of SP_NEW_x flags */
  83
  84    /* Counter for occlusion queries.  Note this supports overlapping
  85     * queries.
  86     */
  87    uint64_t occlusion_count;
  88    unsigned active_query_count;
  89
  90    /** Mapped vertex buffers */
  91    ubyte *mapped_vbuffer[PIPE_MAX_ATTRIBS];
  92
  93    /** Mapped constant buffers */
  94    void *mapped_constants[PIPE_SHADER_TYPES];
  95
  96    /** Vertex format */
  97    struct vertex_info vertex_info;
  98    struct vertex_info vertex_info_vbuf;
  99
 100    /** Which vertex shader output slot contains point size */
 101    int psize_slot;
 102
 103    /** The reduced version of the primitive supplied by the state tracker */
 104    unsigned reduced_api_prim;
 105
 106    /**
 107     * The reduced primitive after unfilled triangles, wide-line decomposition,
 108     * etc, are taken into account.  This is the primitive type that's actually
 109     * rasterized.
 110     */
 111    unsigned reduced_prim;
 112
 113    /** Derived from scissor and surface bounds: */
 114    struct pipe_scissor_state cliprect;
 115
 116    unsigned line_stipple_counter;
 117
 118    /** Software quad rendering pipeline */
 119    struct {
 120       struct quad_stage *shade;
 121       struct quad_stage *depth_test;
 122       struct quad_stage *blend;
 123       struct quad_stage *first; /**< points to one of the above stages */
 124    } quad;
 125
 126    /** TGSI exec things */
 127    struct {
 128       struct sp_sampler_varient *vert_samplers_list[PIPE_MAX_VERTEX_SAMPLERS];
 129       struct sp_sampler_varient *frag_samplers_list[PIPE_MAX_SAMPLERS];
 130    } tgsi;
 131
 132    /** The primitive drawing context */
 133    struct draw_context *draw;
 134
 135    /** Draw module backend */
 136    struct vbuf_render *vbuf_backend;
 137    struct draw_stage *vbuf;
 138
 139    boolean dirty_render_cache;
 140
 141    struct softpipe_tile_cache *cbuf_cache[PIPE_MAX_COLOR_BUFS];
 142    struct softpipe_tile_cache *zsbuf_cache;
 143
 144    unsigned tex_timestamp;
 145    struct softpipe_tex_tile_cache *tex_cache[PIPE_MAX_SAMPLERS];
 146    struct softpipe_tex_tile_cache *vertex_tex_cache[PIPE_MAX_VERTEX_SAMPLERS];
 147
 148    unsigned use_sse : 1;
 149    unsigned dump_fs : 1;
 150    unsigned no_rast : 1;
 151 };
 152
 153
 154 static INLINE struct softpipe_context *
 155 softpipe_context( struct pipe_context *pipe )
 156 {
 157    return (struct softpipe_context *)pipe;
 158 }
 159
 160 void
 161 softpipe_reset_sampler_varients(struct softpipe_context *softpipe);
 162
 163
 164 #endif /* SP_CONTEXT_H */