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.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_winsys;
  55 struct softpipe_vbuf_render;
  56 struct draw_context;
  57 struct draw_stage;
  58 struct softpipe_tile_cache;
  59 struct sp_fragment_shader;
  60 struct sp_vertex_shader;
  61
  62
  63 struct softpipe_context {
  64    struct pipe_context pipe;  /**< base class */
  65
  66    /* The most recent drawing state as set by the driver:
  67     */
  68    const struct pipe_blend_state   *blend;
  69    const struct pipe_sampler_state *sampler[PIPE_MAX_SAMPLERS];
  70    const struct pipe_depth_stencil_alpha_state   *depth_stencil;
  71    const struct pipe_rasterizer_state *rasterizer;
  72    const struct sp_fragment_shader *fs;
  73    const struct sp_vertex_shader *vs;
  74
  75    struct pipe_blend_color blend_color;
  76    struct pipe_clip_state clip;
  77    struct pipe_constant_buffer constants[PIPE_SHADER_TYPES];
  78    struct pipe_framebuffer_state framebuffer;
  79    struct pipe_poly_stipple poly_stipple;
  80    struct pipe_scissor_state scissor;
  81    struct pipe_texture *texture[PIPE_MAX_SAMPLERS];
  82    struct pipe_viewport_state viewport;
  83    struct pipe_vertex_buffer vertex_buffer[PIPE_MAX_ATTRIBS];
  84    struct pipe_vertex_element vertex_element[PIPE_MAX_ATTRIBS];
  85    unsigned dirty;
  86
  87    unsigned num_samplers;
  88    unsigned num_textures;
  89    unsigned num_vertex_elements;
  90    unsigned num_vertex_buffers;
  91
  92    boolean no_rast;
  93
  94    /* Counter for occlusion queries.  Note this supports overlapping
  95     * queries.
  96     */
  97    uint64_t occlusion_count;
  98
  99    /*
 100     * Mapped vertex buffers
 101     */
 102    ubyte *mapped_vbuffer[PIPE_MAX_ATTRIBS];
 103
 104    /** Mapped constant buffers */
 105    void *mapped_constants[PIPE_SHADER_TYPES];
 106
 107    /** Vertex format */
 108    struct vertex_info vertex_info;
 109    struct vertex_info vertex_info_vbuf;
 110
 111    int psize_slot;
 112
 113    unsigned reduced_api_prim;  /**< PIPE_PRIM_POINTS, _LINES or _TRIANGLES */
 114
 115 #if 0
 116    /* Stipple derived state:
 117     */
 118    ubyte stipple_masks[16][16];
 119 #endif
 120
 121    /** Derived from scissor and surface bounds: */
 122    struct pipe_scissor_state cliprect;
 123
 124    unsigned line_stipple_counter;
 125
 126    /** Software quad rendering pipeline */
 127    struct {
 128       struct quad_stage *polygon_stipple;
 129       struct quad_stage *earlyz;
 130       struct quad_stage *shade;
 131       struct quad_stage *alpha_test;
 132       struct quad_stage *stencil_test;
 133       struct quad_stage *depth_test;
 134       struct quad_stage *occlusion;
 135       struct quad_stage *coverage;
 136       struct quad_stage *blend;
 137       struct quad_stage *colormask;
 138       struct quad_stage *output;
 139
 140       struct quad_stage *first; /**< points to one of the above stages */
 141    } quad[SP_NUM_QUAD_THREADS];
 142
 143    /** TGSI exec things */
 144    struct {
 145       struct sp_shader_sampler vert_samplers[PIPE_MAX_SAMPLERS];
 146       struct sp_shader_sampler *vert_samplers_list[PIPE_MAX_SAMPLERS];
 147       struct sp_shader_sampler frag_samplers[PIPE_MAX_SAMPLERS];
 148       struct sp_shader_sampler *frag_samplers_list[PIPE_MAX_SAMPLERS];
 149    } tgsi;
 150
 151    /** The primitive drawing context */
 152    struct draw_context *draw;
 153    struct draw_stage *setup;
 154    struct draw_stage *vbuf;
 155    struct softpipe_vbuf_render *vbuf_render;
 156
 157    struct softpipe_tile_cache *cbuf_cache[PIPE_MAX_COLOR_BUFS];
 158    struct softpipe_tile_cache *zsbuf_cache;
 159
 160    struct softpipe_tile_cache *tex_cache[PIPE_MAX_SAMPLERS];
 161
 162    int use_sse : 1;
 163    int dump_fs : 1;
 164 };
 165
 166
 167 static INLINE struct softpipe_context *
 168 softpipe_context( struct pipe_context *pipe )
 169 {
 170    return (struct softpipe_context *)pipe;
 171 }
 172
 173 #endif /* SP_CONTEXT_H */
 174