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 struct sp_so_state;
  54
  55
  56 struct softpipe_context {
  57    struct pipe_context pipe;  /**< base class */
  58
  59    /** Constant state objects */
  60    struct pipe_blend_state *blend;
  61    struct pipe_sampler_state *fragment_samplers[PIPE_MAX_SAMPLERS];
  62    struct pipe_sampler_state *vertex_samplers[PIPE_MAX_VERTEX_SAMPLERS];
  63    struct pipe_sampler_state *geometry_samplers[PIPE_MAX_GEOMETRY_SAMPLERS];
  64    struct pipe_depth_stencil_alpha_state *depth_stencil;
  65    struct pipe_rasterizer_state *rasterizer;
  66    struct sp_fragment_shader *fs;
  67    struct sp_fragment_shader_variant *fs_variant;
  68    struct sp_vertex_shader *vs;
  69    struct sp_geometry_shader *gs;
  70    struct sp_velems_state *velems;
  71    struct sp_so_state *so;
  72
  73    /** Other rendering state */
  74    struct pipe_blend_color blend_color;
  75    struct pipe_stencil_ref stencil_ref;
  76    struct pipe_clip_state clip;
  77    struct pipe_resource *constants[PIPE_SHADER_TYPES][PIPE_MAX_CONSTANT_BUFFERS];
  78    struct pipe_framebuffer_state framebuffer;
  79    struct pipe_poly_stipple poly_stipple;
  80    struct pipe_scissor_state scissor;
  81    struct pipe_sampler_view *fragment_sampler_views[PIPE_MAX_SAMPLERS];
  82    struct pipe_sampler_view *vertex_sampler_views[PIPE_MAX_VERTEX_SAMPLERS];
  83    struct pipe_sampler_view *geometry_sampler_views[PIPE_MAX_GEOMETRY_SAMPLERS];
  84    struct pipe_viewport_state viewport;
  85    struct pipe_vertex_buffer vertex_buffer[PIPE_MAX_ATTRIBS];
  86    struct pipe_index_buffer index_buffer;
  87    struct {
  88       struct softpipe_resource *buffer[PIPE_MAX_SO_BUFFERS];
  89       int offset[PIPE_MAX_SO_BUFFERS];
  90       int so_count[PIPE_MAX_SO_BUFFERS];
  91       int num_buffers;
  92    } so_target;
  93    struct pipe_query_data_so_statistics so_stats;
  94
  95    unsigned num_fragment_samplers;
  96    unsigned num_fragment_sampler_views;
  97    unsigned num_vertex_samplers;
  98    unsigned num_vertex_sampler_views;
  99    unsigned num_geometry_samplers;
 100    unsigned num_geometry_sampler_views;
 101    unsigned num_vertex_buffers;
 102
 103    unsigned dirty; /**< Mask of SP_NEW_x flags */
 104
 105    /* Counter for occlusion queries.  Note this supports overlapping
 106     * queries.
 107     */
 108    uint64_t occlusion_count;
 109    unsigned active_query_count;
 110
 111    /** Mapped vertex buffers */
 112    ubyte *mapped_vbuffer[PIPE_MAX_ATTRIBS];
 113
 114    /** Mapped constant buffers */
 115    const void *mapped_constants[PIPE_SHADER_TYPES][PIPE_MAX_CONSTANT_BUFFERS];
 116    unsigned const_buffer_size[PIPE_SHADER_TYPES][PIPE_MAX_CONSTANT_BUFFERS];
 117
 118    /** Vertex format */
 119    struct vertex_info vertex_info;
 120    struct vertex_info vertex_info_vbuf;
 121
 122    /** Which vertex shader output slot contains point size */
 123    int psize_slot;
 124
 125    /** The reduced version of the primitive supplied by the state tracker */
 126    unsigned reduced_api_prim;
 127
 128    /** Derived information about which winding orders to cull */
 129    unsigned cull_mode;
 130
 131    /**
 132     * The reduced primitive after unfilled triangles, wide-line decomposition,
 133     * etc, are taken into account.  This is the primitive type that's actually
 134     * rasterized.
 135     */
 136    unsigned reduced_prim;
 137
 138    /** Derived from scissor and surface bounds: */
 139    struct pipe_scissor_state cliprect;
 140
 141    unsigned line_stipple_counter;
 142
 143    /** Conditional query object and mode */
 144    struct pipe_query *render_cond_query;
 145    uint render_cond_mode;
 146
 147    /** Software quad rendering pipeline */
 148    struct {
 149       struct quad_stage *shade;
 150       struct quad_stage *depth_test;
 151       struct quad_stage *blend;
 152       struct quad_stage *pstipple;
 153       struct quad_stage *first; /**< points to one of the above stages */
 154    } quad;
 155
 156    /** TGSI exec things */
 157    struct {
 158       struct sp_sampler_variant *geom_samplers_list[PIPE_MAX_GEOMETRY_SAMPLERS];
 159       struct sp_sampler_variant *vert_samplers_list[PIPE_MAX_VERTEX_SAMPLERS];
 160       struct sp_sampler_variant *frag_samplers_list[PIPE_MAX_SAMPLERS];
 161    } tgsi;
 162
 163    struct tgsi_exec_machine *fs_machine;
 164
 165    /** The primitive drawing context */
 166    struct draw_context *draw;
 167
 168    /** Draw module backend */
 169    struct vbuf_render *vbuf_backend;
 170    struct draw_stage *vbuf;
 171
 172    boolean dirty_render_cache;
 173
 174    struct softpipe_tile_cache *cbuf_cache[PIPE_MAX_COLOR_BUFS];
 175    struct softpipe_tile_cache *zsbuf_cache;
 176
 177    unsigned tex_timestamp;
 178    struct softpipe_tex_tile_cache *fragment_tex_cache[PIPE_MAX_SAMPLERS];
 179    struct softpipe_tex_tile_cache *vertex_tex_cache[PIPE_MAX_VERTEX_SAMPLERS];
 180    struct softpipe_tex_tile_cache *geometry_tex_cache[PIPE_MAX_GEOMETRY_SAMPLERS];
 181
 182    unsigned use_sse : 1;
 183    unsigned dump_fs : 1;
 184    unsigned dump_gs : 1;
 185    unsigned no_rast : 1;
 186 };
 187
 188
 189 static INLINE struct softpipe_context *
 190 softpipe_context( struct pipe_context *pipe )
 191 {
 192    return (struct softpipe_context *)pipe;
 193 }
 194
 195 void
 196 softpipe_reset_sampler_variants(struct softpipe_context *softpipe);
 197
 198 struct pipe_context *
 199 softpipe_create_context( struct pipe_screen *, void *priv );
 200
 201
 202 #define SP_UNREFERENCED         0
 203 #define SP_REFERENCED_FOR_READ  (1 << 0)
 204 #define SP_REFERENCED_FOR_WRITE (1 << 1)
 205
 206 unsigned int
 207 softpipe_is_resource_referenced( struct pipe_context *pipe,
 208                                  struct pipe_resource *texture,
 209                                  unsigned level, int layer);
 210
 211 #endif /* SP_CONTEXT_H */