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 #define DRAW_MAX_TEXTURE_LEVELS 13  /* 4K x 4K for now */
  51
  52 struct draw_context *draw_create( struct pipe_context *pipe );
  53
  54 void draw_destroy( struct draw_context *draw );
  55
  56 void draw_flush(struct draw_context *draw);
  57
  58 void draw_set_viewport_state( struct draw_context *draw,
  59                               const struct pipe_viewport_state *viewport );
  60
  61 void draw_set_clip_state( struct draw_context *pipe,
  62                           const struct pipe_clip_state *clip );
  63
  64 void draw_set_rasterizer_state( struct draw_context *draw,
  65                                 const struct pipe_rasterizer_state *raster,
  66                                 void *rast_handle );
  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_point_sprites(struct draw_context *draw, boolean draw_sprite);
  74
  75 void draw_wide_line_threshold(struct draw_context *draw, float threshold);
  76
  77 void draw_enable_line_stipple(struct draw_context *draw, boolean enable);
  78
  79 void draw_enable_point_sprites(struct draw_context *draw, boolean enable);
  80
  81 void draw_set_mrd(struct draw_context *draw, double mrd);
  82
  83 boolean
  84 draw_install_aaline_stage(struct draw_context *draw, struct pipe_context *pipe);
  85
  86 boolean
  87 draw_install_aapoint_stage(struct draw_context *draw, struct pipe_context *pipe);
  88
  89 boolean
  90 draw_install_pstipple_stage(struct draw_context *draw, struct pipe_context *pipe);
  91
  92
  93 int
  94 draw_find_shader_output(const struct draw_context *draw,
  95                         uint semantic_name, uint semantic_index);
  96
  97 uint
  98 draw_num_shader_outputs(const struct draw_context *draw);
  99
 100
 101 void
 102 draw_texture_samplers(struct draw_context *draw,
 103                       uint shader_type,
 104                       uint num_samplers,
 105                       struct tgsi_sampler **samplers);
 106
 107 void
 108 draw_set_sampler_views(struct draw_context *draw,
 109                        struct pipe_sampler_view **views,
 110                        unsigned num);
 111 void
 112 draw_set_samplers(struct draw_context *draw,
 113                   struct pipe_sampler_state **samplers,
 114                   unsigned num);
 115
 116 void
 117 draw_set_mapped_texture(struct draw_context *draw,
 118                         unsigned sampler_idx,
 119                         uint32_t width, uint32_t height, uint32_t depth,
 120                         uint32_t last_level,
 121                         uint32_t row_stride[DRAW_MAX_TEXTURE_LEVELS],
 122                         uint32_t img_stride[DRAW_MAX_TEXTURE_LEVELS],
 123                         const void *data[DRAW_MAX_TEXTURE_LEVELS]);
 124
 125
 126 /*
 127  * Vertex shader functions
 128  */
 129
 130 struct draw_vertex_shader *
 131 draw_create_vertex_shader(struct draw_context *draw,
 132                           const struct pipe_shader_state *shader);
 133 void draw_bind_vertex_shader(struct draw_context *draw,
 134                              struct draw_vertex_shader *dvs);
 135 void draw_delete_vertex_shader(struct draw_context *draw,
 136                                struct draw_vertex_shader *dvs);
 137
 138
 139 /*
 140  * Geometry shader functions
 141  */
 142 struct draw_geometry_shader *
 143 draw_create_geometry_shader(struct draw_context *draw,
 144                             const struct pipe_shader_state *shader);
 145 void draw_bind_geometry_shader(struct draw_context *draw,
 146                                struct draw_geometry_shader *dvs);
 147 void draw_delete_geometry_shader(struct draw_context *draw,
 148                                  struct draw_geometry_shader *dvs);
 149
 150
 151 /*
 152  * Vertex data functions
 153  */
 154
 155 void draw_set_vertex_buffers(struct draw_context *draw,
 156                              unsigned count,
 157                              const struct pipe_vertex_buffer *buffers);
 158
 159 void draw_set_vertex_elements(struct draw_context *draw,
 160                               unsigned count,
 161                               const struct pipe_vertex_element *elements);
 162
 163 void
 164 draw_set_mapped_element_buffer_range( struct draw_context *draw,
 165                                       unsigned eltSize,
 166                                       int eltBias,
 167                                       unsigned min_index,
 168                                       unsigned max_index,
 169                                       const void *elements );
 170
 171 void draw_set_mapped_element_buffer( struct draw_context *draw,
 172                                      unsigned eltSize,
 173                                      int eltBias,
 174                                      const void *elements );
 175
 176 void draw_set_mapped_vertex_buffer(struct draw_context *draw,
 177                                    unsigned attr, const void *buffer);
 178
 179 void
 180 draw_set_mapped_constant_buffer(struct draw_context *draw,
 181                                 unsigned shader_type,
 182                                 unsigned slot,
 183                                 const void *buffer,
 184                                 unsigned size);
 185
 186 void
 187 draw_set_mapped_so_buffers(struct draw_context *draw,
 188                            void *buffers[PIPE_MAX_SO_BUFFERS],
 189                            unsigned num_buffers);
 190 void
 191 draw_set_so_state(struct draw_context *draw,
 192                   struct pipe_stream_output_state *state);
 193
 194
 195 /***********************************************************************
 196  * draw_pt.c
 197  */
 198
 199 void draw_arrays(struct draw_context *draw, unsigned prim,
 200                  unsigned start, unsigned count);
 201
 202 void
 203 draw_arrays_instanced(struct draw_context *draw,
 204                       unsigned mode,
 205                       unsigned start,
 206                       unsigned count,
 207                       unsigned startInstance,
 208                       unsigned instanceCount);
 209
 210
 211 /*******************************************************************************
 212  * Driver backend interface
 213  */
 214 struct vbuf_render;
 215 void draw_set_render( struct draw_context *draw,
 216                       struct vbuf_render *render );
 217
 218 void draw_set_driver_clipping( struct draw_context *draw,
 219                                boolean bypass_clipping );
 220
 221 void draw_set_force_passthrough( struct draw_context *draw,
 222                                  boolean enable );
 223
 224 /*******************************************************************************
 225  * Draw pipeline
 226  */
 227 boolean draw_need_pipeline(const struct draw_context *draw,
 228                            const struct pipe_rasterizer_state *rasterizer,
 229                            unsigned prim );
 230
 231 #endif /* DRAW_CONTEXT_H */