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 #ifdef DRAW_LLVM
  44 #include <llvm-c/ExecutionEngine.h>
  45 #endif
  46
  47 struct pipe_context;
  48 struct draw_context;
  49 struct draw_stage;
  50 struct draw_vertex_shader;
  51 struct draw_geometry_shader;
  52 struct tgsi_sampler;
  53
  54
  55 struct draw_context *draw_create( void );
  56
  57 void draw_destroy( struct draw_context *draw );
  58
  59 void draw_set_viewport_state( struct draw_context *draw,
  60                               const struct pipe_viewport_state *viewport );
  61
  62 void draw_set_clip_state( struct draw_context *pipe,
  63                           const struct pipe_clip_state *clip );
  64
  65 void draw_set_rasterizer_state( struct draw_context *draw,
  66                                 const struct pipe_rasterizer_state *raster );
  67
  68 void draw_set_rasterize_stage( struct draw_context *draw,
  69                                struct draw_stage *stage );
  70
  71 void draw_wide_point_threshold(struct draw_context *draw, float threshold);
  72
  73 void draw_wide_line_threshold(struct draw_context *draw, float threshold);
  74
  75 void draw_enable_line_stipple(struct draw_context *draw, boolean enable);
  76
  77 void draw_enable_point_sprites(struct draw_context *draw, boolean enable);
  78
  79 void draw_set_mrd(struct draw_context *draw, double mrd);
  80
  81 boolean
  82 draw_install_aaline_stage(struct draw_context *draw, struct pipe_context *pipe);
  83
  84 boolean
  85 draw_install_aapoint_stage(struct draw_context *draw, struct pipe_context *pipe);
  86
  87 boolean
  88 draw_install_pstipple_stage(struct draw_context *draw, struct pipe_context *pipe);
  89
  90
  91 int
  92 draw_find_shader_output(const struct draw_context *draw,
  93                         uint semantic_name, uint semantic_index);
  94
  95 uint
  96 draw_num_shader_outputs(const struct draw_context *draw);
  97
  98
  99 void
 100 draw_texture_samplers(struct draw_context *draw,
 101                       uint num_samplers,
 102                       struct tgsi_sampler **samplers);
 103
 104
 105
 106 /*
 107  * Vertex shader functions
 108  */
 109
 110 struct draw_vertex_shader *
 111 draw_create_vertex_shader(struct draw_context *draw,
 112                           const struct pipe_shader_state *shader);
 113 void draw_bind_vertex_shader(struct draw_context *draw,
 114                              struct draw_vertex_shader *dvs);
 115 void draw_delete_vertex_shader(struct draw_context *draw,
 116                                struct draw_vertex_shader *dvs);
 117
 118
 119 /*
 120  * Geometry shader functions
 121  */
 122 struct draw_geometry_shader *
 123 draw_create_geometry_shader(struct draw_context *draw,
 124                             const struct pipe_shader_state *shader);
 125 void draw_bind_geometry_shader(struct draw_context *draw,
 126                                struct draw_geometry_shader *dvs);
 127 void draw_delete_geometry_shader(struct draw_context *draw,
 128                                  struct draw_geometry_shader *dvs);
 129
 130
 131 /*
 132  * Vertex data functions
 133  */
 134
 135 void draw_set_vertex_buffers(struct draw_context *draw,
 136                              unsigned count,
 137                              const struct pipe_vertex_buffer *buffers);
 138
 139 void draw_set_vertex_elements(struct draw_context *draw,
 140                               unsigned count,
 141                               const struct pipe_vertex_element *elements);
 142
 143 void
 144 draw_set_mapped_element_buffer_range( struct draw_context *draw,
 145                                       unsigned eltSize,
 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                                      const void *elements );
 153
 154 void draw_set_mapped_vertex_buffer(struct draw_context *draw,
 155                                    unsigned attr, const void *buffer);
 156
 157 void
 158 draw_set_mapped_constant_buffer(struct draw_context *draw,
 159                                 unsigned shader_type,
 160                                 unsigned slot,
 161                                 const void *buffer,
 162                                 unsigned size);
 163
 164
 165 /***********************************************************************
 166  * draw_prim.c
 167  */
 168
 169 void draw_arrays(struct draw_context *draw, unsigned prim,
 170                  unsigned start, unsigned count);
 171
 172 void
 173 draw_arrays_instanced(struct draw_context *draw,
 174                       unsigned mode,
 175                       unsigned start,
 176                       unsigned count,
 177                       unsigned startInstance,
 178                       unsigned instanceCount);
 179
 180 void draw_flush(struct draw_context *draw);
 181
 182
 183 /*******************************************************************************
 184  * Driver backend interface
 185  */
 186 struct vbuf_render;
 187 void draw_set_render( struct draw_context *draw,
 188                       struct vbuf_render *render );
 189
 190 void draw_set_driver_clipping( struct draw_context *draw,
 191                                boolean bypass_clipping );
 192
 193 void draw_set_force_passthrough( struct draw_context *draw,
 194                                  boolean enable );
 195
 196 /*******************************************************************************
 197  * Draw pipeline
 198  */
 199 boolean draw_need_pipeline(const struct draw_context *draw,
 200                            const struct pipe_rasterizer_state *rasterizer,
 201                            unsigned prim );
 202
 203 #ifdef DRAW_LLVM
 204 /*******************************************************************************
 205  * LLVM integration
 206  */
 207 struct draw_context *draw_create_with_llvm(LLVMExecutionEngineRef engine);
 208 #endif
 209
 210 #endif /* DRAW_CONTEXT_H */