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 #include "util/u_blitter.h"
  36
  37 #include "draw/draw_vertex.h"
  38
  39 #include "sp_quad_pipe.h"
  40
  41
  42 /** Do polygon stipple in the draw module? */
  43 #define DO_PSTIPPLE_IN_DRAW_MODULE 0
  44
  45 /** Do polygon stipple with the util module? */
  46 #define DO_PSTIPPLE_IN_HELPER_MODULE 1
  47
  48
  49 struct softpipe_vbuf_render;
  50 struct draw_context;
  51 struct draw_stage;
  52 struct softpipe_tile_cache;
  53 struct softpipe_tex_tile_cache;
  54 struct sp_fragment_shader;
  55 struct sp_vertex_shader;
  56 struct sp_velems_state;
  57 struct sp_so_state;
  58
  59 struct softpipe_context {
  60    struct pipe_context pipe;  /**< base class */
  61
  62    /** Constant state objects */
  63    struct pipe_blend_state *blend;
  64    struct pipe_sampler_state *samplers[PIPE_SHADER_TYPES][PIPE_MAX_SAMPLERS];
  65    struct pipe_depth_stencil_alpha_state *depth_stencil;
  66    struct pipe_rasterizer_state *rasterizer;
  67    struct sp_fragment_shader *fs;
  68    struct sp_fragment_shader_variant *fs_variant;
  69    struct sp_vertex_shader *vs;
  70    struct sp_geometry_shader *gs;
  71    struct sp_velems_state *velems;
  72    struct sp_so_state *so;
  73
  74    /** Other rendering state */
  75    struct pipe_blend_color blend_color;
  76    struct pipe_blend_color blend_color_clamped;
  77    struct pipe_stencil_ref stencil_ref;
  78    struct pipe_clip_state clip;
  79    struct pipe_resource *constants[PIPE_SHADER_TYPES][PIPE_MAX_CONSTANT_BUFFERS];
  80    struct pipe_framebuffer_state framebuffer;
  81    struct pipe_poly_stipple poly_stipple;
  82    struct pipe_scissor_state scissor;
  83    struct pipe_sampler_view *sampler_views[PIPE_SHADER_TYPES][PIPE_MAX_SHADER_SAMPLER_VIEWS];
  84
  85    struct pipe_viewport_state viewport;
  86    struct pipe_vertex_buffer vertex_buffer[PIPE_MAX_ATTRIBS];
  87    struct pipe_index_buffer index_buffer;
  88
  89    struct draw_so_target *so_targets[PIPE_MAX_SO_BUFFERS];
  90    unsigned num_so_targets;
  91
  92    struct pipe_query_data_so_statistics so_stats;
  93    unsigned num_primitives_generated;
  94
  95    struct pipe_query_data_pipeline_statistics pipeline_statistics;
  96    unsigned active_statistics_queries;
  97
  98    unsigned num_samplers[PIPE_SHADER_TYPES];
  99    unsigned num_sampler_views[PIPE_SHADER_TYPES];
 100
 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    /** Polygon stipple items */
 148    struct {
 149       struct pipe_resource *texture;
 150       struct pipe_sampler_state *sampler;
 151       struct pipe_sampler_view *sampler_view;
 152    } pstipple;
 153
 154    /** Software quad rendering pipeline */
 155    struct {
 156       struct quad_stage *shade;
 157       struct quad_stage *depth_test;
 158       struct quad_stage *blend;
 159       struct quad_stage *pstipple;
 160       struct quad_stage *first; /**< points to one of the above stages */
 161    } quad;
 162
 163    /** TGSI exec things */
 164    struct {
 165       struct sp_tgsi_sampler *sampler[PIPE_SHADER_TYPES];
 166    } tgsi;
 167
 168    struct tgsi_exec_machine *fs_machine;
 169
 170    /** The primitive drawing context */
 171    struct draw_context *draw;
 172
 173    /** Draw module backend */
 174    struct vbuf_render *vbuf_backend;
 175    struct draw_stage *vbuf;
 176
 177    struct blitter_context *blitter;
 178
 179    boolean dirty_render_cache;
 180
 181    struct softpipe_tile_cache *cbuf_cache[PIPE_MAX_COLOR_BUFS];
 182    struct softpipe_tile_cache *zsbuf_cache;
 183
 184    unsigned tex_timestamp;
 185
 186    /*
 187     * Texture caches for vertex, fragment, geometry stages.
 188     * Don't use PIPE_SHADER_TYPES here to avoid allocating unused memory
 189     * for compute shaders.
 190     * XXX wouldn't it make more sense for the tile cache to just be part
 191     * of sp_sampler_view?
 192     */
 193    struct softpipe_tex_tile_cache *tex_cache[PIPE_SHADER_GEOMETRY+1][PIPE_MAX_SHADER_SAMPLER_VIEWS];
 194
 195    unsigned dump_fs : 1;
 196    unsigned dump_gs : 1;
 197    unsigned no_rast : 1;
 198 };
 199
 200
 201 static INLINE struct softpipe_context *
 202 softpipe_context( struct pipe_context *pipe )
 203 {
 204    return (struct softpipe_context *)pipe;
 205 }
 206
 207
 208 struct pipe_context *
 209 softpipe_create_context( struct pipe_screen *, void *priv );
 210
 211 struct pipe_resource *
 212 softpipe_user_buffer_create(struct pipe_screen *screen,
 213                             void *ptr,
 214                             unsigned bytes,
 215                             unsigned bind_flags);
 216
 217 #define SP_UNREFERENCED         0
 218 #define SP_REFERENCED_FOR_READ  (1 << 0)
 219 #define SP_REFERENCED_FOR_WRITE (1 << 1)
 220
 221 unsigned int
 222 softpipe_is_resource_referenced( struct pipe_context *pipe,
 223                                  struct pipe_resource *texture,
 224                                  unsigned level, int layer);
 225
 226 #endif /* SP_CONTEXT_H */