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 tgsi_sampler;
  49
  50
  51 struct draw_context *draw_create( void );
  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
  64 void draw_set_rasterize_stage( struct draw_context *draw,
  65                                struct draw_stage *stage );
  66
  67 void draw_wide_point_threshold(struct draw_context *draw, float threshold);
  68
  69 void draw_wide_line_threshold(struct draw_context *draw, float threshold);
  70
  71 void draw_enable_line_stipple(struct draw_context *draw, boolean enable);
  72
  73 void draw_enable_point_sprites(struct draw_context *draw, boolean enable);
  74
  75 void draw_set_mrd(struct draw_context *draw, double mrd);
  76
  77 boolean
  78 draw_install_aaline_stage(struct draw_context *draw, struct pipe_context *pipe);
  79
  80 boolean
  81 draw_install_aapoint_stage(struct draw_context *draw, struct pipe_context *pipe);
  82
  83 boolean
  84 draw_install_pstipple_stage(struct draw_context *draw, struct pipe_context *pipe);
  85
  86
  87 int
  88 draw_find_vs_output(const struct draw_context *draw,
  89                     uint semantic_name, uint semantic_index);
  90
  91 uint
  92 draw_num_vs_outputs(const struct draw_context *draw);
  93
  94
  95 void
  96 draw_texture_samplers(struct draw_context *draw,
  97                       uint num_samplers,
  98                       struct tgsi_sampler **samplers);
  99
 100
 101
 102 /*
 103  * Vertex shader functions
 104  */
 105
 106 struct draw_vertex_shader *
 107 draw_create_vertex_shader(struct draw_context *draw,
 108                           const struct pipe_shader_state *shader);
 109 void draw_bind_vertex_shader(struct draw_context *draw,
 110                              struct draw_vertex_shader *dvs);
 111 void draw_delete_vertex_shader(struct draw_context *draw,
 112                                struct draw_vertex_shader *dvs);
 113
 114
 115
 116 /*
 117  * Vertex data functions
 118  */
 119
 120 void draw_set_vertex_buffers(struct draw_context *draw,
 121                              unsigned count,
 122                              const struct pipe_vertex_buffer *buffers);
 123
 124 void draw_set_vertex_elements(struct draw_context *draw,
 125                               unsigned count,
 126                               const struct pipe_vertex_element *elements);
 127
 128 void
 129 draw_set_mapped_element_buffer_range( struct draw_context *draw,
 130                                       unsigned eltSize,
 131                                       unsigned min_index,
 132                                       unsigned max_index,
 133                                       const void *elements );
 134
 135 void draw_set_mapped_element_buffer( struct draw_context *draw,
 136                                      unsigned eltSize,
 137                                      const void *elements );
 138
 139 void draw_set_mapped_vertex_buffer(struct draw_context *draw,
 140                                    unsigned attr, const void *buffer);
 141
 142 void draw_set_mapped_constant_buffer(struct draw_context *draw,
 143                                      const void *buffer,
 144                                      unsigned size );
 145
 146 void draw_set_edgeflags( struct draw_context *draw,
 147                          const unsigned *edgeflag );
 148
 149
 150 /***********************************************************************
 151  * draw_prim.c
 152  */
 153
 154 void draw_arrays(struct draw_context *draw, unsigned prim,
 155                  unsigned start, unsigned count);
 156
 157 void draw_flush(struct draw_context *draw);
 158
 159
 160 /*******************************************************************************
 161  * Driver backend interface
 162  */
 163 struct vbuf_render;
 164 void draw_set_render( struct draw_context *draw,
 165                       struct vbuf_render *render );
 166
 167 void draw_set_driver_clipping( struct draw_context *draw,
 168                                boolean bypass_clipping );
 169
 170 void draw_set_force_passthrough( struct draw_context *draw,
 171                                  boolean enable );
 172
 173 /*******************************************************************************
 174  * Draw pipeline
 175  */
 176 boolean draw_need_pipeline(const struct draw_context *draw,
 177                            const struct pipe_rasterizer_state *rasterizer,
 178                            unsigned prim );
 179
 180
 181
 182 #endif /* DRAW_CONTEXT_H */