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_point_sprites(struct draw_context *draw, boolean draw_sprite);
  71
  72 void draw_wide_line_threshold(struct draw_context *draw, float threshold);
  73
  74 void draw_enable_line_stipple(struct draw_context *draw, boolean enable);
  75
  76 void draw_enable_point_sprites(struct draw_context *draw, boolean enable);
  77
  78 void draw_set_mrd(struct draw_context *draw, double mrd);
  79
  80 boolean
  81 draw_install_aaline_stage(struct draw_context *draw, struct pipe_context *pipe);
  82
  83 boolean
  84 draw_install_aapoint_stage(struct draw_context *draw, struct pipe_context *pipe);
  85
  86 boolean
  87 draw_install_pstipple_stage(struct draw_context *draw, struct pipe_context *pipe);
  88
  89
  90 int
  91 draw_find_shader_output(const struct draw_context *draw,
  92                         uint semantic_name, uint semantic_index);
  93
  94 uint
  95 draw_num_shader_outputs(const struct draw_context *draw);
  96
  97
  98 void
  99 draw_texture_samplers(struct draw_context *draw,
 100                       uint num_samplers,
 101                       struct tgsi_sampler **samplers);
 102
 103
 104
 105 /*
 106  * Vertex shader functions
 107  */
 108
 109 struct draw_vertex_shader *
 110 draw_create_vertex_shader(struct draw_context *draw,
 111                           const struct pipe_shader_state *shader);
 112 void draw_bind_vertex_shader(struct draw_context *draw,
 113                              struct draw_vertex_shader *dvs);
 114 void draw_delete_vertex_shader(struct draw_context *draw,
 115                                struct draw_vertex_shader *dvs);
 116
 117
 118 /*
 119  * Geometry shader functions
 120  */
 121 struct draw_geometry_shader *
 122 draw_create_geometry_shader(struct draw_context *draw,
 123                             const struct pipe_shader_state *shader);
 124 void draw_bind_geometry_shader(struct draw_context *draw,
 125                                struct draw_geometry_shader *dvs);
 126 void draw_delete_geometry_shader(struct draw_context *draw,
 127                                  struct draw_geometry_shader *dvs);
 128
 129
 130 /*
 131  * Vertex data functions
 132  */
 133
 134 void draw_set_vertex_buffers(struct draw_context *draw,
 135                              unsigned count,
 136                              const struct pipe_vertex_buffer *buffers);
 137
 138 void draw_set_vertex_elements(struct draw_context *draw,
 139                               unsigned count,
 140                               const struct pipe_vertex_element *elements);
 141
 142 void
 143 draw_set_mapped_element_buffer_range( struct draw_context *draw,
 144                                       unsigned eltSize,
 145                                       int eltBias,
 146                                       unsigned min_index,
 147                                       unsigned max_index,
 148                                       const void *elements );
 149
 150 void draw_set_mapped_element_buffer( struct draw_context *draw,
 151                                      unsigned eltSize,
 152                                      int eltBias,
 153                                      const void *elements );
 154
 155 void draw_set_mapped_vertex_buffer(struct draw_context *draw,
 156                                    unsigned attr, const void *buffer);
 157
 158 void
 159 draw_set_mapped_constant_buffer(struct draw_context *draw,
 160                                 unsigned shader_type,
 161                                 unsigned slot,
 162                                 const void *buffer,
 163                                 unsigned size);
 164
 165
 166 /***********************************************************************
 167  * draw_prim.c
 168  */
 169
 170 void draw_arrays(struct draw_context *draw, unsigned prim,
 171                  unsigned start, unsigned count);
 172
 173 void
 174 draw_arrays_instanced(struct draw_context *draw,
 175                       unsigned mode,
 176                       unsigned start,
 177                       unsigned count,
 178                       unsigned startInstance,
 179                       unsigned instanceCount);
 180
 181 void draw_flush(struct draw_context *draw);
 182
 183
 184 /*******************************************************************************
 185  * Driver backend interface
 186  */
 187 struct vbuf_render;
 188 void draw_set_render( struct draw_context *draw,
 189                       struct vbuf_render *render );
 190
 191 void draw_set_driver_clipping( struct draw_context *draw,
 192                                boolean bypass_clipping );
 193
 194 void draw_set_force_passthrough( struct draw_context *draw,
 195                                  boolean enable );
 196
 197 /*******************************************************************************
 198  * Draw pipeline
 199  */
 200 boolean draw_need_pipeline(const struct draw_context *draw,
 201                            const struct pipe_rasterizer_state *rasterizer,
 202                            unsigned prim );
 203
 204 #endif /* DRAW_CONTEXT_H */