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
  44 struct pipe_context;
  45 struct draw_context;
  46 struct draw_stage;
  47 struct draw_vertex_shader;
  48 struct draw_geometry_shader;
  49 struct tgsi_sampler;
  50
  51
  52 struct draw_context *draw_create( struct pipe_context *pipe );
  53
  54 void draw_destroy( struct draw_context *draw );
  55
  56 void draw_set_viewport_state( struct draw_context *draw,
  57                               const struct pipe_viewport_state *viewport );
  58
  59 void draw_set_clip_state( struct draw_context *pipe,
  60                           const struct pipe_clip_state *clip );
  61
  62 void draw_set_rasterizer_state( struct draw_context *draw,
  63                                 const struct pipe_rasterizer_state *raster,
  64                                 void *rast_handle );
  65
  66 void draw_set_rasterize_stage( struct draw_context *draw,
  67                                struct draw_stage *stage );
  68
  69 void draw_wide_point_threshold(struct draw_context *draw, float threshold);
  70
  71 void draw_wide_line_threshold(struct draw_context *draw, float threshold);
  72
  73 void draw_enable_line_stipple(struct draw_context *draw, boolean enable);
  74
  75 void draw_enable_point_sprites(struct draw_context *draw, boolean enable);
  76
  77 void draw_set_mrd(struct draw_context *draw, double mrd);
  78
  79 boolean
  80 draw_install_aaline_stage(struct draw_context *draw, struct pipe_context *pipe);
  81
  82 boolean
  83 draw_install_aapoint_stage(struct draw_context *draw, struct pipe_context *pipe);
  84
  85 boolean
  86 draw_install_pstipple_stage(struct draw_context *draw, struct pipe_context *pipe);
  87
  88
  89 int
  90 draw_find_shader_output(const struct draw_context *draw,
  91                         uint semantic_name, uint semantic_index);
  92
  93 uint
  94 draw_num_shader_outputs(const struct draw_context *draw);
  95
  96
  97 void
  98 draw_texture_samplers(struct draw_context *draw,
  99                       uint num_samplers,
 100                       struct tgsi_sampler **samplers);
 101
 102
 103
 104 /*
 105  * Vertex shader functions
 106  */
 107
 108 struct draw_vertex_shader *
 109 draw_create_vertex_shader(struct draw_context *draw,
 110                           const struct pipe_shader_state *shader);
 111 void draw_bind_vertex_shader(struct draw_context *draw,
 112                              struct draw_vertex_shader *dvs);
 113 void draw_delete_vertex_shader(struct draw_context *draw,
 114                                struct draw_vertex_shader *dvs);
 115
 116
 117 /*
 118  * Geometry shader functions
 119  */
 120 struct draw_geometry_shader *
 121 draw_create_geometry_shader(struct draw_context *draw,
 122                             const struct pipe_shader_state *shader);
 123 void draw_bind_geometry_shader(struct draw_context *draw,
 124                                struct draw_geometry_shader *dvs);
 125 void draw_delete_geometry_shader(struct draw_context *draw,
 126                                  struct draw_geometry_shader *dvs);
 127
 128
 129 /*
 130  * Vertex data functions
 131  */
 132
 133 void draw_set_vertex_buffers(struct draw_context *draw,
 134                              unsigned count,
 135                              const struct pipe_vertex_buffer *buffers);
 136
 137 void draw_set_vertex_elements(struct draw_context *draw,
 138                               unsigned count,
 139                               const struct pipe_vertex_element *elements);
 140
 141 void
 142 draw_set_mapped_element_buffer_range( struct draw_context *draw,
 143                                       unsigned eltSize,
 144                                       unsigned min_index,
 145                                       unsigned max_index,
 146                                       const void *elements );
 147
 148 void draw_set_mapped_element_buffer( struct draw_context *draw,
 149                                      unsigned eltSize,
 150                                      const void *elements );
 151
 152 void draw_set_mapped_vertex_buffer(struct draw_context *draw,
 153                                    unsigned attr, const void *buffer);
 154
 155 void
 156 draw_set_mapped_constant_buffer(struct draw_context *draw,
 157                                 unsigned shader_type,
 158                                 unsigned slot,
 159                                 const void *buffer,
 160                                 unsigned size);
 161
 162
 163 /***********************************************************************
 164  * draw_prim.c
 165  */
 166
 167 void draw_arrays(struct draw_context *draw, unsigned prim,
 168                  unsigned start, unsigned count);
 169
 170 void
 171 draw_arrays_instanced(struct draw_context *draw,
 172                       unsigned mode,
 173                       unsigned start,
 174                       unsigned count,
 175                       unsigned startInstance,
 176                       unsigned instanceCount);
 177
 178 void draw_flush(struct draw_context *draw);
 179
 180
 181 /*******************************************************************************
 182  * Driver backend interface
 183  */
 184 struct vbuf_render;
 185 void draw_set_render( struct draw_context *draw,
 186                       struct vbuf_render *render );
 187
 188 void draw_set_driver_clipping( struct draw_context *draw,
 189                                boolean bypass_clipping );
 190
 191 void draw_set_force_passthrough( struct draw_context *draw,
 192                                  boolean enable );
 193
 194 /*******************************************************************************
 195  * Draw pipeline
 196  */
 197 boolean draw_need_pipeline(const struct draw_context *draw,
 198                            const struct pipe_rasterizer_state *rasterizer,
 199                            unsigned prim );
 200
 201
 202
 203 #endif /* DRAW_CONTEXT_H */