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( 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_shader_output(const struct draw_context *draw,
  89                         uint semantic_name, uint semantic_index);
  90
  91 uint
  92 draw_num_shader_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  * Geometry shader functions
 117  */
 118 struct draw_geometry_shader *
 119 draw_create_geometry_shader(struct draw_context *draw,
 120                             const struct pipe_shader_state *shader);
 121 void draw_bind_geometry_shader(struct draw_context *draw,
 122                                struct draw_geometry_shader *dvs);
 123 void draw_delete_geometry_shader(struct draw_context *draw,
 124                                  struct draw_geometry_shader *dvs);
 125
 126
 127 /*
 128  * Vertex data functions
 129  */
 130
 131 void draw_set_vertex_buffers(struct draw_context *draw,
 132                              unsigned count,
 133                              const struct pipe_vertex_buffer *buffers);
 134
 135 void draw_set_vertex_elements(struct draw_context *draw,
 136                               unsigned count,
 137                               const struct pipe_vertex_element *elements);
 138
 139 void
 140 draw_set_mapped_element_buffer_range( struct draw_context *draw,
 141                                       unsigned eltSize,
 142                                       unsigned min_index,
 143                                       unsigned max_index,
 144                                       const void *elements );
 145
 146 void draw_set_mapped_element_buffer( struct draw_context *draw,
 147                                      unsigned eltSize,
 148                                      const void *elements );
 149
 150 void draw_set_mapped_vertex_buffer(struct draw_context *draw,
 151                                    unsigned attr, const void *buffer);
 152
 153 void
 154 draw_set_mapped_constant_buffer(struct draw_context *draw,
 155                                 unsigned shader_type,
 156                                 unsigned slot,
 157                                 const void *buffer,
 158                                 unsigned size);
 159
 160
 161 /***********************************************************************
 162  * draw_prim.c
 163  */
 164
 165 void draw_arrays(struct draw_context *draw, unsigned prim,
 166                  unsigned start, unsigned count);
 167
 168 void
 169 draw_arrays_instanced(struct draw_context *draw,
 170                       unsigned mode,
 171                       unsigned start,
 172                       unsigned count,
 173                       unsigned startInstance,
 174                       unsigned instanceCount);
 175
 176 void draw_flush(struct draw_context *draw);
 177
 178
 179 /*******************************************************************************
 180  * Driver backend interface
 181  */
 182 struct vbuf_render;
 183 void draw_set_render( struct draw_context *draw,
 184                       struct vbuf_render *render );
 185
 186 void draw_set_driver_clipping( struct draw_context *draw,
 187                                boolean bypass_clipping );
 188
 189 void draw_set_force_passthrough( struct draw_context *draw,
 190                                  boolean enable );
 191
 192 /*******************************************************************************
 193  * Draw pipeline
 194  */
 195 boolean draw_need_pipeline(const struct draw_context *draw,
 196                            const struct pipe_rasterizer_state *rasterizer,
 197                            unsigned prim );
 198
 199 #ifdef HAVE_LLVM
 200 /*******************************************************************************
 201  * LLVM integration
 202  */
 203 struct draw_context *draw_create_with_llvm(void);
 204 #endif
 205
 206 #endif /* DRAW_CONTEXT_H */