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 "pipe/p_defines.h"
  36
  37 #include "draw/draw_vertex.h"
  38
  39 #include "sp_quad_pipe.h"
  40 #include "sp_tex_sample.h"
  41
  42
  43 /**
  44  * This is a temporary variable for testing draw-stage polygon stipple.
  45  * If zero, do stipple in sp_quad_stipple.c
  46  */
  47 #define USE_DRAW_STAGE_PSTIPPLE 1
  48
  49 /* Number of threads working on individual quads.
  50  * Setting to 1 disables this feature.
  51  */
  52 #define SP_NUM_QUAD_THREADS 1
  53
  54 struct softpipe_vbuf_render;
  55 struct draw_context;
  56 struct draw_stage;
  57 struct softpipe_tile_cache;
  58 struct sp_fragment_shader;
  59 struct sp_vertex_shader;
  60
  61
  62 struct softpipe_context {
  63    struct pipe_context pipe;  /**< base class */
  64
  65    /** Constant state objects */
  66    const struct pipe_blend_state *blend;
  67    const struct pipe_sampler_state *sampler[PIPE_MAX_SAMPLERS];
  68    const struct pipe_depth_stencil_alpha_state *depth_stencil;
  69    const struct pipe_rasterizer_state *rasterizer;
  70    const struct sp_fragment_shader *fs;
  71    const struct sp_vertex_shader *vs;
  72
  73    /** Other rendering state */
  74    struct pipe_blend_color blend_color;
  75    struct pipe_clip_state clip;
  76    struct pipe_constant_buffer constants[PIPE_SHADER_TYPES];
  77    struct pipe_framebuffer_state framebuffer;
  78    struct pipe_poly_stipple poly_stipple;
  79    struct pipe_scissor_state scissor;
  80    struct pipe_texture *texture[PIPE_MAX_SAMPLERS];
  81    struct pipe_viewport_state viewport;
  82    struct pipe_vertex_buffer vertex_buffer[PIPE_MAX_ATTRIBS];
  83    struct pipe_vertex_element vertex_element[PIPE_MAX_ATTRIBS];
  84
  85    unsigned num_samplers;
  86    unsigned num_textures;
  87    unsigned num_vertex_elements;
  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
  97    /** Mapped vertex buffers */
  98    ubyte *mapped_vbuffer[PIPE_MAX_ATTRIBS];
  99
 100    /** Mapped constant buffers */
 101    void *mapped_constants[PIPE_SHADER_TYPES];
 102
 103    /** Vertex format */
 104    struct vertex_info vertex_info;
 105    struct vertex_info vertex_info_vbuf;
 106
 107    /** Which vertex shader output slot contains point size */
 108    int psize_slot;
 109
 110    unsigned reduced_api_prim;  /**< PIPE_PRIM_POINTS, _LINES or _TRIANGLES */
 111
 112    /** Derived from scissor and surface bounds: */
 113    struct pipe_scissor_state cliprect;
 114
 115    unsigned line_stipple_counter;
 116
 117    /** Software quad rendering pipeline */
 118    struct {
 119       struct quad_stage *polygon_stipple;
 120       struct quad_stage *earlyz;
 121       struct quad_stage *shade;
 122       struct quad_stage *alpha_test;
 123       struct quad_stage *stencil_test;
 124       struct quad_stage *depth_test;
 125       struct quad_stage *occlusion;
 126       struct quad_stage *coverage;
 127       struct quad_stage *blend;
 128       struct quad_stage *colormask;
 129       struct quad_stage *output;
 130
 131       struct quad_stage *first; /**< points to one of the above stages */
 132    } quad[SP_NUM_QUAD_THREADS];
 133
 134    /** TGSI exec things */
 135    struct {
 136       struct sp_shader_sampler vert_samplers[PIPE_MAX_SAMPLERS];
 137       struct sp_shader_sampler *vert_samplers_list[PIPE_MAX_SAMPLERS];
 138       struct sp_shader_sampler frag_samplers[PIPE_MAX_SAMPLERS];
 139       struct sp_shader_sampler *frag_samplers_list[PIPE_MAX_SAMPLERS];
 140    } tgsi;
 141
 142    /** The primitive drawing context */
 143    struct draw_context *draw;
 144    struct draw_stage *setup;
 145    struct draw_stage *vbuf;
 146    struct softpipe_vbuf_render *vbuf_render;
 147
 148    struct softpipe_tile_cache *cbuf_cache[PIPE_MAX_COLOR_BUFS];
 149    struct softpipe_tile_cache *zsbuf_cache;
 150
 151    struct softpipe_tile_cache *tex_cache[PIPE_MAX_SAMPLERS];
 152
 153    unsigned use_sse : 1;
 154    unsigned dump_fs : 1;
 155    unsigned no_rast : 1;
 156 };
 157
 158
 159 static INLINE struct softpipe_context *
 160 softpipe_context( struct pipe_context *pipe )
 161 {
 162    return (struct softpipe_context *)pipe;
 163 }
 164
 165 #endif /* SP_CONTEXT_H */
 166