src/gallium/drivers/softpipe/sp_context.h

   1 /**************************************************************************
   2  *
   3  * Copyright 2007 VMware, Inc.
   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 VMWARE 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 <keithw@vmware.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 #include "sp_setup.h"
  41
  42
  43 /** Do polygon stipple in the draw module? */
  44 #define DO_PSTIPPLE_IN_DRAW_MODULE 0
  45
  46 /** Do polygon stipple with the util module? */
  47 #define DO_PSTIPPLE_IN_HELPER_MODULE 1
  48
  49
  50 struct softpipe_vbuf_render;
  51 struct draw_context;
  52 struct draw_stage;
  53 struct softpipe_tile_cache;
  54 struct softpipe_tex_tile_cache;
  55 struct sp_fragment_shader;
  56 struct sp_vertex_shader;
  57 struct sp_velems_state;
  58 struct sp_so_state;
  59
  60 struct softpipe_context {
  61    struct pipe_context pipe;  /**< base class */
  62
  63    /** Constant state objects */
  64    struct pipe_blend_state *blend;
  65    struct pipe_sampler_state *samplers[PIPE_SHADER_TYPES][PIPE_MAX_SAMPLERS];
  66    struct pipe_depth_stencil_alpha_state *depth_stencil;
  67    struct pipe_rasterizer_state *rasterizer;
  68    struct sp_fragment_shader *fs;
  69    struct sp_fragment_shader_variant *fs_variant;
  70    struct sp_vertex_shader *vs;
  71    struct sp_geometry_shader *gs;
  72    struct sp_velems_state *velems;
  73    struct sp_so_state *so;
  74    struct sp_compute_shader *cs;
  75
  76    /** Other rendering state */
  77    struct pipe_blend_color blend_color;
  78    struct pipe_blend_color blend_color_clamped;
  79    struct pipe_stencil_ref stencil_ref;
  80    struct pipe_clip_state clip;
  81    struct pipe_resource *constants[PIPE_SHADER_TYPES][PIPE_MAX_CONSTANT_BUFFERS];
  82    struct pipe_framebuffer_state framebuffer;
  83    struct pipe_poly_stipple poly_stipple;
  84    struct pipe_scissor_state scissors[PIPE_MAX_VIEWPORTS];
  85    struct pipe_sampler_view *sampler_views[PIPE_SHADER_TYPES][PIPE_MAX_SHADER_SAMPLER_VIEWS];
  86
  87    struct pipe_image_view images[PIPE_SHADER_TYPES][PIPE_MAX_SHADER_IMAGES];
  88    struct pipe_shader_buffer buffers[PIPE_SHADER_TYPES][PIPE_MAX_SHADER_BUFFERS];
  89    struct pipe_viewport_state viewports[PIPE_MAX_VIEWPORTS];
  90    struct pipe_vertex_buffer vertex_buffer[PIPE_MAX_ATTRIBS];
  91    struct pipe_index_buffer index_buffer;
  92    struct pipe_resource *mapped_vs_tex[PIPE_MAX_SHADER_SAMPLER_VIEWS];
  93    struct pipe_resource *mapped_gs_tex[PIPE_MAX_SHADER_SAMPLER_VIEWS];
  94
  95    struct draw_so_target *so_targets[PIPE_MAX_SO_BUFFERS];
  96    unsigned num_so_targets;
  97
  98    struct pipe_query_data_so_statistics so_stats;
  99
 100    struct pipe_query_data_pipeline_statistics pipeline_statistics;
 101    unsigned active_statistics_queries;
 102
 103    unsigned num_samplers[PIPE_SHADER_TYPES];
 104    unsigned num_sampler_views[PIPE_SHADER_TYPES];
 105
 106    unsigned num_vertex_buffers;
 107
 108    unsigned dirty; /**< Mask of SP_NEW_x flags */
 109
 110    /* Counter for occlusion queries.  Note this supports overlapping
 111     * queries.
 112     */
 113    uint64_t occlusion_count;
 114    unsigned active_query_count;
 115
 116    /** Mapped vertex buffers */
 117    ubyte *mapped_vbuffer[PIPE_MAX_ATTRIBS];
 118
 119    /** Mapped constant buffers */
 120    const void *mapped_constants[PIPE_SHADER_TYPES][PIPE_MAX_CONSTANT_BUFFERS];
 121    unsigned const_buffer_size[PIPE_SHADER_TYPES][PIPE_MAX_CONSTANT_BUFFERS];
 122
 123    /** Vertex format */
 124    struct sp_setup_info setup_info;
 125    struct vertex_info vertex_info;
 126
 127    /** Which vertex shader output slot contains point size */
 128    int8_t psize_slot;
 129
 130    /** Which vertex shader output slot contains viewport index */
 131    int8_t viewport_index_slot;
 132
 133    /** Which vertex shader output slot contains layer */
 134    int8_t layer_slot;
 135
 136    /** The reduced version of the primitive supplied by the state tracker */
 137    unsigned reduced_api_prim;
 138
 139    /** Derived information about which winding orders to cull */
 140    unsigned cull_mode;
 141
 142    /**
 143     * The reduced primitive after unfilled triangles, wide-line decomposition,
 144     * etc, are taken into account.  This is the primitive type that's actually
 145     * rasterized.
 146     */
 147    unsigned reduced_prim;
 148
 149    /** Derived from scissor and surface bounds: */
 150    struct pipe_scissor_state cliprect[PIPE_MAX_VIEWPORTS];
 151
 152    unsigned line_stipple_counter;
 153
 154    /** Conditional query object and mode */
 155    struct pipe_query *render_cond_query;
 156    uint render_cond_mode;
 157    boolean render_cond_cond;
 158
 159    /** Polygon stipple items */
 160    struct {
 161       struct pipe_resource *texture;
 162       struct pipe_sampler_state *sampler;
 163       struct pipe_sampler_view *sampler_view;
 164    } pstipple;
 165
 166    /** Software quad rendering pipeline */
 167    struct {
 168       struct quad_stage *shade;
 169       struct quad_stage *depth_test;
 170       struct quad_stage *blend;
 171       struct quad_stage *pstipple;
 172       struct quad_stage *first; /**< points to one of the above stages */
 173    } quad;
 174
 175    /** TGSI exec things */
 176    struct {
 177       struct sp_tgsi_sampler *sampler[PIPE_SHADER_TYPES];
 178       struct sp_tgsi_image *image[PIPE_SHADER_TYPES];
 179       struct sp_tgsi_buffer *buffer[PIPE_SHADER_TYPES];
 180    } tgsi;
 181
 182    struct tgsi_exec_machine *fs_machine;
 183    /** whether early depth testing is enabled */
 184    bool early_depth;
 185
 186    /** The primitive drawing context */
 187    struct draw_context *draw;
 188
 189    /** Draw module backend */
 190    struct vbuf_render *vbuf_backend;
 191    struct draw_stage *vbuf;
 192
 193    struct blitter_context *blitter;
 194
 195    boolean dirty_render_cache;
 196
 197    struct softpipe_tile_cache *cbuf_cache[PIPE_MAX_COLOR_BUFS];
 198    struct softpipe_tile_cache *zsbuf_cache;
 199
 200    unsigned tex_timestamp;
 201
 202    /*
 203     * Texture caches for vertex, fragment, geometry stages.
 204     * Don't use PIPE_SHADER_TYPES here to avoid allocating unused memory
 205     * for compute shaders.
 206     * XXX wouldn't it make more sense for the tile cache to just be part
 207     * of sp_sampler_view?
 208     */
 209    struct softpipe_tex_tile_cache *tex_cache[PIPE_SHADER_TYPES][PIPE_MAX_SHADER_SAMPLER_VIEWS];
 210
 211    unsigned dump_fs : 1;
 212    unsigned dump_gs : 1;
 213    unsigned dump_cs : 1;
 214    unsigned no_rast : 1;
 215 };
 216
 217
 218 static inline struct softpipe_context *
 219 softpipe_context( struct pipe_context *pipe )
 220 {
 221    return (struct softpipe_context *)pipe;
 222 }
 223
 224
 225 struct pipe_context *
 226 softpipe_create_context(struct pipe_screen *, void *priv, unsigned flags);
 227
 228 struct pipe_resource *
 229 softpipe_user_buffer_create(struct pipe_screen *screen,
 230                             void *ptr,
 231                             unsigned bytes,
 232                             unsigned bind_flags);
 233
 234 #define SP_UNREFERENCED         0
 235 #define SP_REFERENCED_FOR_READ  (1 << 0)
 236 #define SP_REFERENCED_FOR_WRITE (1 << 1)
 237
 238 unsigned int
 239 softpipe_is_resource_referenced( struct pipe_context *pipe,
 240                                  struct pipe_resource *texture,
 241                                  unsigned level, int layer);
 242
 243 #endif /* SP_CONTEXT_H */