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    unsigned so_append_bitmask;
  92
  93    struct pipe_query_data_so_statistics so_stats;
  94    unsigned num_primitives_generated;
  95
  96    struct pipe_query_data_pipeline_statistics pipeline_statistics;
  97    unsigned active_statistics_queries;
  98
  99    unsigned num_samplers[PIPE_SHADER_TYPES];
 100    unsigned num_sampler_views[PIPE_SHADER_TYPES];
 101
 102    unsigned num_vertex_buffers;
 103
 104    unsigned dirty; /**< Mask of SP_NEW_x flags */
 105
 106    /* Counter for occlusion queries.  Note this supports overlapping
 107     * queries.
 108     */
 109    uint64_t occlusion_count;
 110    unsigned active_query_count;
 111
 112    /** Mapped vertex buffers */
 113    ubyte *mapped_vbuffer[PIPE_MAX_ATTRIBS];
 114
 115    /** Mapped constant buffers */
 116    const void *mapped_constants[PIPE_SHADER_TYPES][PIPE_MAX_CONSTANT_BUFFERS];
 117    unsigned const_buffer_size[PIPE_SHADER_TYPES][PIPE_MAX_CONSTANT_BUFFERS];
 118
 119    /** Vertex format */
 120    struct vertex_info vertex_info;
 121    struct vertex_info vertex_info_vbuf;
 122
 123    /** Which vertex shader output slot contains point size */
 124    int psize_slot;
 125
 126    /** The reduced version of the primitive supplied by the state tracker */
 127    unsigned reduced_api_prim;
 128
 129    /** Derived information about which winding orders to cull */
 130    unsigned cull_mode;
 131
 132    /**
 133     * The reduced primitive after unfilled triangles, wide-line decomposition,
 134     * etc, are taken into account.  This is the primitive type that's actually
 135     * rasterized.
 136     */
 137    unsigned reduced_prim;
 138
 139    /** Derived from scissor and surface bounds: */
 140    struct pipe_scissor_state cliprect;
 141
 142    unsigned line_stipple_counter;
 143
 144    /** Conditional query object and mode */
 145    struct pipe_query *render_cond_query;
 146    uint render_cond_mode;
 147    boolean render_cond_cond;
 148
 149    /** Polygon stipple items */
 150    struct {
 151       struct pipe_resource *texture;
 152       struct pipe_sampler_state *sampler;
 153       struct pipe_sampler_view *sampler_view;
 154    } pstipple;
 155
 156    /** Software quad rendering pipeline */
 157    struct {
 158       struct quad_stage *shade;
 159       struct quad_stage *depth_test;
 160       struct quad_stage *blend;
 161       struct quad_stage *pstipple;
 162       struct quad_stage *first; /**< points to one of the above stages */
 163    } quad;
 164
 165    /** TGSI exec things */
 166    struct {
 167       struct sp_tgsi_sampler *sampler[PIPE_SHADER_TYPES];
 168    } tgsi;
 169
 170    struct tgsi_exec_machine *fs_machine;
 171
 172    /** The primitive drawing context */
 173    struct draw_context *draw;
 174
 175    /** Draw module backend */
 176    struct vbuf_render *vbuf_backend;
 177    struct draw_stage *vbuf;
 178
 179    struct blitter_context *blitter;
 180
 181    boolean dirty_render_cache;
 182
 183    struct softpipe_tile_cache *cbuf_cache[PIPE_MAX_COLOR_BUFS];
 184    struct softpipe_tile_cache *zsbuf_cache;
 185
 186    unsigned tex_timestamp;
 187
 188    /*
 189     * Texture caches for vertex, fragment, geometry stages.
 190     * Don't use PIPE_SHADER_TYPES here to avoid allocating unused memory
 191     * for compute shaders.
 192     * XXX wouldn't it make more sense for the tile cache to just be part
 193     * of sp_sampler_view?
 194     */
 195    struct softpipe_tex_tile_cache *tex_cache[PIPE_SHADER_GEOMETRY+1][PIPE_MAX_SHADER_SAMPLER_VIEWS];
 196
 197    unsigned dump_fs : 1;
 198    unsigned dump_gs : 1;
 199    unsigned no_rast : 1;
 200 };
 201
 202
 203 static INLINE struct softpipe_context *
 204 softpipe_context( struct pipe_context *pipe )
 205 {
 206    return (struct softpipe_context *)pipe;
 207 }
 208
 209
 210 struct pipe_context *
 211 softpipe_create_context( struct pipe_screen *, void *priv );
 212
 213 struct pipe_resource *
 214 softpipe_user_buffer_create(struct pipe_screen *screen,
 215                             void *ptr,
 216                             unsigned bytes,
 217                             unsigned bind_flags);
 218
 219 #define SP_UNREFERENCED         0
 220 #define SP_REFERENCED_FOR_READ  (1 << 0)
 221 #define SP_REFERENCED_FOR_WRITE (1 << 1)
 222
 223 unsigned int
 224 softpipe_is_resource_referenced( struct pipe_context *pipe,
 225                                  struct pipe_resource *texture,
 226                                  unsigned level, int layer);
 227
 228 #endif /* SP_CONTEXT_H */