src/gallium/auxiliary/draw/draw_context.h

   1
   2 /**************************************************************************
   3  *
   4  * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
   5  * All Rights Reserved.
   6  *
   7  * Permission is hereby granted, free of charge, to any person obtaining a
   8  * copy of this software and associated documentation files (the
   9  * "Software"), to deal in the Software without restriction, including
  10  * without limitation the rights to use, copy, modify, merge, publish,
  11  * distribute, sub license, and/or sell copies of the Software, and to
  12  * permit persons to whom the Software is furnished to do so, subject to
  13  * the following conditions:
  14  *
  15  * The above copyright notice and this permission notice (including the
  16  * next paragraph) shall be included in all copies or substantial portions
  17  * of the Software.
  18  *
  19  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  20  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  21  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  22  * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
  23  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  24  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  25  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  26  *
  27  **************************************************************************/
  28
  29 /**
  30  * \brief  Public interface into the drawing module.
  31  */
  32
  33 /* Authors:  Keith Whitwell <keith@tungstengraphics.com>
  34  */
  35
  36
  37 #ifndef DRAW_CONTEXT_H
  38 #define DRAW_CONTEXT_H
  39
  40
  41 #include "pipe/p_state.h"
  42
  43 struct pipe_context;
  44 struct draw_context;
  45 struct draw_stage;
  46 struct draw_vertex_shader;
  47 struct draw_geometry_shader;
  48 struct tgsi_sampler;
  49
  50
  51 struct draw_context *draw_create( struct pipe_context *pipe );
  52
  53 void draw_destroy( struct draw_context *draw );
  54
  55 void draw_set_viewport_state( struct draw_context *draw,
  56                               const struct pipe_viewport_state *viewport );
  57
  58 void draw_set_clip_state( struct draw_context *pipe,
  59                           const struct pipe_clip_state *clip );
  60
  61 void draw_set_rasterizer_state( struct draw_context *draw,
  62                                 const struct pipe_rasterizer_state *raster,
  63                                 void *rast_handle );
  64
  65 void draw_set_rasterize_stage( struct draw_context *draw,
  66                                struct draw_stage *stage );
  67
  68 void draw_wide_point_threshold(struct draw_context *draw, float threshold);
  69
  70 void draw_wide_line_threshold(struct draw_context *draw, float threshold);
  71
  72 void draw_enable_line_stipple(struct draw_context *draw, boolean enable);
  73
  74 void draw_enable_point_sprites(struct draw_context *draw, boolean enable);
  75
  76 void draw_set_mrd(struct draw_context *draw, double mrd);
  77
  78 boolean
  79 draw_install_aaline_stage(struct draw_context *draw, struct pipe_context *pipe);
  80
  81 boolean
  82 draw_install_aapoint_stage(struct draw_context *draw, struct pipe_context *pipe);
  83
  84 boolean
  85 draw_install_pstipple_stage(struct draw_context *draw, struct pipe_context *pipe);
  86
  87
  88 int
  89 draw_find_shader_output(const struct draw_context *draw,
  90                         uint semantic_name, uint semantic_index);
  91
  92 uint
  93 draw_num_shader_outputs(const struct draw_context *draw);
  94
  95
  96 void
  97 draw_texture_samplers(struct draw_context *draw,
  98                       uint num_samplers,
  99                       struct tgsi_sampler **samplers);
 100
 101
 102
 103 /*
 104  * Vertex shader functions
 105  */
 106
 107 struct draw_vertex_shader *
 108 draw_create_vertex_shader(struct draw_context *draw,
 109                           const struct pipe_shader_state *shader);
 110 void draw_bind_vertex_shader(struct draw_context *draw,
 111                              struct draw_vertex_shader *dvs);
 112 void draw_delete_vertex_shader(struct draw_context *draw,
 113                                struct draw_vertex_shader *dvs);
 114
 115
 116 /*
 117  * Geometry shader functions
 118  */
 119 struct draw_geometry_shader *
 120 draw_create_geometry_shader(struct draw_context *draw,
 121                             const struct pipe_shader_state *shader);
 122 void draw_bind_geometry_shader(struct draw_context *draw,
 123                                struct draw_geometry_shader *dvs);
 124 void draw_delete_geometry_shader(struct draw_context *draw,
 125                                  struct draw_geometry_shader *dvs);
 126
 127
 128 /*
 129  * Vertex data functions
 130  */
 131
 132 void draw_set_vertex_buffers(struct draw_context *draw,
 133                              unsigned count,
 134                              const struct pipe_vertex_buffer *buffers);
 135
 136 void draw_set_vertex_elements(struct draw_context *draw,
 137                               unsigned count,
 138                               const struct pipe_vertex_element *elements);
 139
 140 void
 141 draw_set_mapped_element_buffer_range( struct draw_context *draw,
 142                                       unsigned eltSize,
 143                                       unsigned min_index,
 144                                       unsigned max_index,
 145                                       const void *elements );
 146
 147 void draw_set_mapped_element_buffer( struct draw_context *draw,
 148                                      unsigned eltSize,
 149                                      const void *elements );
 150
 151 void draw_set_mapped_vertex_buffer(struct draw_context *draw,
 152                                    unsigned attr, const void *buffer);
 153
 154 void
 155 draw_set_mapped_constant_buffer(struct draw_context *draw,
 156                                 unsigned shader_type,
 157                                 unsigned slot,
 158                                 const void *buffer,
 159                                 unsigned size);
 160
 161
 162 /***********************************************************************
 163  * draw_prim.c
 164  */
 165
 166 void draw_arrays(struct draw_context *draw, unsigned prim,
 167                  unsigned start, unsigned count);
 168
 169 void
 170 draw_arrays_instanced(struct draw_context *draw,
 171                       unsigned mode,
 172                       unsigned start,
 173                       unsigned count,
 174                       unsigned startInstance,
 175                       unsigned instanceCount);
 176
 177 void draw_flush(struct draw_context *draw);
 178
 179
 180 /*******************************************************************************
 181  * Driver backend interface
 182  */
 183 struct vbuf_render;
 184 void draw_set_render( struct draw_context *draw,
 185                       struct vbuf_render *render );
 186
 187 void draw_set_driver_clipping( struct draw_context *draw,
 188                                boolean bypass_clipping );
 189
 190 void draw_set_force_passthrough( struct draw_context *draw,
 191                                  boolean enable );
 192
 193 /*******************************************************************************
 194  * Draw pipeline
 195  */
 196 boolean draw_need_pipeline(const struct draw_context *draw,
 197                            const struct pipe_rasterizer_state *rasterizer,
 198                            unsigned prim );
 199
 200 #endif /* DRAW_CONTEXT_H */