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
  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
  76 boolean
  77 draw_install_aaline_stage(struct draw_context *draw, struct pipe_context *pipe);
  78
  79 boolean
  80 draw_install_aapoint_stage(struct draw_context *draw, struct pipe_context *pipe);
  81
  82 boolean
  83 draw_install_pstipple_stage(struct draw_context *draw, struct pipe_context *pipe);
  84
  85
  86 int
  87 draw_find_vs_output(struct draw_context *draw,
  88                     uint semantic_name, uint semantic_index);
  89
  90 uint
  91 draw_num_vs_outputs(struct draw_context *draw);
  92
  93
  94
  95 /*
  96  * Vertex shader functions
  97  */
  98
  99 struct draw_vertex_shader *
 100 draw_create_vertex_shader(struct draw_context *draw,
 101                           const struct pipe_shader_state *shader);
 102 void draw_bind_vertex_shader(struct draw_context *draw,
 103                              struct draw_vertex_shader *dvs);
 104 void draw_delete_vertex_shader(struct draw_context *draw,
 105                                struct draw_vertex_shader *dvs);
 106
 107
 108
 109 /*
 110  * Vertex data functions
 111  */
 112
 113 void draw_set_vertex_buffers(struct draw_context *draw,
 114                              unsigned count,
 115                              const struct pipe_vertex_buffer *buffers);
 116
 117 void draw_set_vertex_elements(struct draw_context *draw,
 118                               unsigned count,
 119                               const struct pipe_vertex_element *elements);
 120
 121 void
 122 draw_set_mapped_element_buffer_range( struct draw_context *draw,
 123                                       unsigned eltSize,
 124                                       unsigned min_index,
 125                                       unsigned max_index,
 126                                       void *elements );
 127
 128 void draw_set_mapped_element_buffer( struct draw_context *draw,
 129                                      unsigned eltSize,
 130                                      void *elements );
 131
 132 void draw_set_mapped_vertex_buffer(struct draw_context *draw,
 133                                    unsigned attr, const void *buffer);
 134
 135 void draw_set_mapped_constant_buffer(struct draw_context *draw,
 136                                      const void *buffer,
 137                                      unsigned size );
 138
 139 void draw_set_edgeflags( struct draw_context *draw,
 140                          const unsigned *edgeflag );
 141
 142
 143 /***********************************************************************
 144  * draw_prim.c
 145  */
 146
 147 void draw_arrays(struct draw_context *draw, unsigned prim,
 148                  unsigned start, unsigned count);
 149
 150 void draw_flush(struct draw_context *draw);
 151
 152
 153 /*******************************************************************************
 154  * Driver backend interface
 155  */
 156 struct vbuf_render;
 157 void draw_set_render( struct draw_context *draw,
 158                       struct vbuf_render *render );
 159
 160 void draw_set_driver_clipping( struct draw_context *draw,
 161                                boolean bypass_clipping );
 162
 163 /*******************************************************************************
 164  * Draw pipeline
 165  */
 166 boolean draw_need_pipeline(const struct draw_context *draw,
 167                            const struct pipe_rasterizer_state *rasterizer,
 168                            unsigned prim );
 169
 170
 171
 172 #endif /* DRAW_CONTEXT_H */