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 /** Do polygon stipple in the driver here, or in the draw module? */
  42 #define DO_PSTIPPLE_IN_DRAW_MODULE 1
  43
  44
  45 struct softpipe_vbuf_render;
  46 struct draw_context;
  47 struct draw_stage;
  48 struct softpipe_tile_cache;
  49 struct softpipe_tex_tile_cache;
  50 struct sp_fragment_shader;
  51 struct sp_vertex_shader;
  52 struct sp_velems_state;
  53
  54
  55 struct softpipe_context {
  56    struct pipe_context pipe;  /**< base class */
  57
  58    /** Constant state objects */
  59    struct pipe_blend_state *blend;
  60    struct pipe_sampler_state *sampler[PIPE_MAX_SAMPLERS];
  61    struct pipe_sampler_state *vertex_samplers[PIPE_MAX_VERTEX_SAMPLERS];
  62    struct pipe_depth_stencil_alpha_state *depth_stencil;
  63    struct pipe_rasterizer_state *rasterizer;
  64    struct sp_fragment_shader *fs;
  65    struct sp_vertex_shader *vs;
  66    struct sp_geometry_shader *gs;
  67    struct sp_velems_state *velems;
  68
  69    /** Other rendering state */
  70    struct pipe_blend_color blend_color;
  71    struct pipe_stencil_ref stencil_ref;
  72    struct pipe_clip_state clip;
  73    struct pipe_resource *constants[PIPE_SHADER_TYPES][PIPE_MAX_CONSTANT_BUFFERS];
  74    struct pipe_framebuffer_state framebuffer;
  75    struct pipe_poly_stipple poly_stipple;
  76    struct pipe_scissor_state scissor;
  77    struct pipe_sampler_view *sampler_views[PIPE_MAX_SAMPLERS];
  78    struct pipe_sampler_view *vertex_sampler_views[PIPE_MAX_VERTEX_SAMPLERS];
  79    struct pipe_viewport_state viewport;
  80    struct pipe_vertex_buffer vertex_buffer[PIPE_MAX_ATTRIBS];
  81
  82    unsigned num_samplers;
  83    unsigned num_sampler_views;
  84    unsigned num_vertex_samplers;
  85    unsigned num_vertex_sampler_views;
  86    unsigned num_vertex_buffers;
  87
  88    unsigned dirty; /**< Mask of SP_NEW_x flags */
  89
  90    /* Counter for occlusion queries.  Note this supports overlapping
  91     * queries.
  92     */
  93    uint64_t occlusion_count;
  94    unsigned active_query_count;
  95
  96    /** Mapped vertex buffers */
  97    ubyte *mapped_vbuffer[PIPE_MAX_ATTRIBS];
  98
  99    /** Mapped constant buffers */
 100    const void *mapped_constants[PIPE_SHADER_TYPES][PIPE_MAX_CONSTANT_BUFFERS];
 101
 102    /** Vertex format */
 103    struct vertex_info vertex_info;
 104    struct vertex_info vertex_info_vbuf;
 105
 106    /** Which vertex shader output slot contains point size */
 107    int psize_slot;
 108
 109    /** The reduced version of the primitive supplied by the state tracker */
 110    unsigned reduced_api_prim;
 111
 112    /** Derived information about which winding orders to cull */
 113    unsigned cull_mode;
 114
 115    /**
 116     * The reduced primitive after unfilled triangles, wide-line decomposition,
 117     * etc, are taken into account.  This is the primitive type that's actually
 118     * rasterized.
 119     */
 120    unsigned reduced_prim;
 121
 122    /** Derived from scissor and surface bounds: */
 123    struct pipe_scissor_state cliprect;
 124
 125    unsigned line_stipple_counter;
 126
 127    /** Conditional query object and mode */
 128    struct pipe_query *render_cond_query;
 129    uint render_cond_mode;
 130
 131    /** Software quad rendering pipeline */
 132    struct {
 133       struct quad_stage *shade;
 134       struct quad_stage *depth_test;
 135       struct quad_stage *blend;
 136       struct quad_stage *pstipple;
 137       struct quad_stage *first; /**< points to one of the above stages */
 138    } quad;
 139
 140    /** TGSI exec things */
 141    struct {
 142       struct sp_sampler_varient *vert_samplers_list[PIPE_MAX_VERTEX_SAMPLERS];
 143       struct sp_sampler_varient *frag_samplers_list[PIPE_MAX_SAMPLERS];
 144    } tgsi;
 145
 146    struct tgsi_exec_machine *fs_machine;
 147
 148    /** The primitive drawing context */
 149    struct draw_context *draw;
 150
 151    /** Draw module backend */
 152    struct vbuf_render *vbuf_backend;
 153    struct draw_stage *vbuf;
 154
 155    boolean dirty_render_cache;
 156
 157    struct softpipe_tile_cache *cbuf_cache[PIPE_MAX_COLOR_BUFS];
 158    struct softpipe_tile_cache *zsbuf_cache;
 159
 160    unsigned tex_timestamp;
 161    struct softpipe_tex_tile_cache *tex_cache[PIPE_MAX_SAMPLERS];
 162    struct softpipe_tex_tile_cache *vertex_tex_cache[PIPE_MAX_VERTEX_SAMPLERS];
 163
 164    unsigned use_sse : 1;
 165    unsigned dump_fs : 1;
 166    unsigned dump_gs : 1;
 167    unsigned no_rast : 1;
 168 };
 169
 170
 171 static INLINE struct softpipe_context *
 172 softpipe_context( struct pipe_context *pipe )
 173 {
 174    return (struct softpipe_context *)pipe;
 175 }
 176
 177 void
 178 softpipe_reset_sampler_varients(struct softpipe_context *softpipe);
 179
 180 struct pipe_context *
 181 softpipe_create_context( struct pipe_screen *, void *priv );
 182
 183
 184 #endif /* SP_CONTEXT_H */