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 draw module? */
  42 #define DO_PSTIPPLE_IN_DRAW_MODULE 0
  43
  44 /** Do polygon stipple with the util module? */
  45 #define DO_PSTIPPLE_IN_HELPER_MODULE 1
  46
  47
  48 struct softpipe_vbuf_render;
  49 struct draw_context;
  50 struct draw_stage;
  51 struct softpipe_tile_cache;
  52 struct softpipe_tex_tile_cache;
  53 struct sp_fragment_shader;
  54 struct sp_vertex_shader;
  55 struct sp_velems_state;
  56 struct sp_so_state;
  57
  58 struct softpipe_context {
  59    struct pipe_context pipe;  /**< base class */
  60
  61    /** Constant state objects */
  62    struct pipe_blend_state *blend;
  63    struct pipe_sampler_state *samplers[PIPE_SHADER_TYPES][PIPE_MAX_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_blend_color blend_color_clamped;
  76    struct pipe_stencil_ref stencil_ref;
  77    struct pipe_clip_state clip;
  78    struct pipe_resource *constants[PIPE_SHADER_TYPES][PIPE_MAX_CONSTANT_BUFFERS];
  79    struct pipe_framebuffer_state framebuffer;
  80    struct pipe_poly_stipple poly_stipple;
  81    struct pipe_scissor_state scissor;
  82    struct pipe_sampler_view *sampler_views[PIPE_SHADER_TYPES][PIPE_MAX_GEOMETRY_SAMPLERS];
  83
  84    struct pipe_viewport_state viewport;
  85    struct pipe_vertex_buffer vertex_buffer[PIPE_MAX_ATTRIBS];
  86    struct pipe_index_buffer index_buffer;
  87
  88    struct draw_so_target *so_targets[PIPE_MAX_SO_BUFFERS];
  89    int num_so_targets;
  90
  91    struct pipe_query_data_so_statistics so_stats;
  92    unsigned num_primitives_generated;
  93
  94    unsigned num_samplers[PIPE_SHADER_TYPES];
  95    unsigned num_sampler_views[PIPE_SHADER_TYPES];
  96
  97    unsigned num_vertex_buffers;
  98
  99    unsigned dirty; /**< Mask of SP_NEW_x flags */
 100
 101    /* Counter for occlusion queries.  Note this supports overlapping
 102     * queries.
 103     */
 104    uint64_t occlusion_count;
 105    unsigned active_query_count;
 106
 107    /** Mapped vertex buffers */
 108    ubyte *mapped_vbuffer[PIPE_MAX_ATTRIBS];
 109
 110    /** Mapped constant buffers */
 111    const void *mapped_constants[PIPE_SHADER_TYPES][PIPE_MAX_CONSTANT_BUFFERS];
 112    unsigned const_buffer_size[PIPE_SHADER_TYPES][PIPE_MAX_CONSTANT_BUFFERS];
 113
 114    /** Vertex format */
 115    struct vertex_info vertex_info;
 116    struct vertex_info vertex_info_vbuf;
 117
 118    /** Which vertex shader output slot contains point size */
 119    int psize_slot;
 120
 121    /** The reduced version of the primitive supplied by the state tracker */
 122    unsigned reduced_api_prim;
 123
 124    /** Derived information about which winding orders to cull */
 125    unsigned cull_mode;
 126
 127    /**
 128     * The reduced primitive after unfilled triangles, wide-line decomposition,
 129     * etc, are taken into account.  This is the primitive type that's actually
 130     * rasterized.
 131     */
 132    unsigned reduced_prim;
 133
 134    /** Derived from scissor and surface bounds: */
 135    struct pipe_scissor_state cliprect;
 136
 137    unsigned line_stipple_counter;
 138
 139    /** Conditional query object and mode */
 140    struct pipe_query *render_cond_query;
 141    uint render_cond_mode;
 142
 143    /** Polygon stipple items */
 144    struct {
 145       struct pipe_resource *texture;
 146       struct pipe_sampler_state *sampler;
 147       struct pipe_sampler_view *sampler_view;
 148    } pstipple;
 149
 150    /** Software quad rendering pipeline */
 151    struct {
 152       struct quad_stage *shade;
 153       struct quad_stage *depth_test;
 154       struct quad_stage *blend;
 155       struct quad_stage *pstipple;
 156       struct quad_stage *first; /**< points to one of the above stages */
 157    } quad;
 158
 159    /** TGSI exec things */
 160    struct {
 161       struct sp_sampler_variant *samplers_list[PIPE_SHADER_TYPES][PIPE_MAX_SAMPLERS];
 162    } tgsi;
 163
 164    struct tgsi_exec_machine *fs_machine;
 165
 166    /** The primitive drawing context */
 167    struct draw_context *draw;
 168
 169    /** Draw module backend */
 170    struct vbuf_render *vbuf_backend;
 171    struct draw_stage *vbuf;
 172
 173    boolean dirty_render_cache;
 174
 175    struct softpipe_tile_cache *cbuf_cache[PIPE_MAX_COLOR_BUFS];
 176    struct softpipe_tile_cache *zsbuf_cache;
 177
 178    unsigned tex_timestamp;
 179
 180    /*
 181     * Texture caches for vertex, fragment, geometry stages.
 182     * Don't use PIPE_SHADER_TYPES here to avoid allocating unused memory
 183     * for compute shaders.
 184     */
 185    struct softpipe_tex_tile_cache *tex_cache[PIPE_SHADER_GEOMETRY+1][PIPE_MAX_SAMPLERS];
 186
 187    unsigned dump_fs : 1;
 188    unsigned dump_gs : 1;
 189    unsigned no_rast : 1;
 190 };
 191
 192
 193 static INLINE struct softpipe_context *
 194 softpipe_context( struct pipe_context *pipe )
 195 {
 196    return (struct softpipe_context *)pipe;
 197 }
 198
 199 void
 200 softpipe_reset_sampler_variants(struct softpipe_context *softpipe);
 201
 202 struct pipe_context *
 203 softpipe_create_context( struct pipe_screen *, void *priv );
 204
 205 struct pipe_resource *
 206 softpipe_user_buffer_create(struct pipe_screen *screen,
 207                             void *ptr,
 208                             unsigned bytes,
 209                             unsigned bind_flags);
 210
 211 #define SP_UNREFERENCED         0
 212 #define SP_REFERENCED_FOR_READ  (1 << 0)
 213 #define SP_REFERENCED_FOR_WRITE (1 << 1)
 214
 215 unsigned int
 216 softpipe_is_resource_referenced( struct pipe_context *pipe,
 217                                  struct pipe_resource *texture,
 218                                  unsigned level, int layer);
 219
 220 #endif /* SP_CONTEXT_H */