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