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 #include "tgsi/tgsi_exec.h"
  43
  44 struct pipe_context;
  45 struct draw_context;
  46 struct draw_stage;
  47 struct draw_vertex_shader;
  48 struct draw_geometry_shader;
  49 struct draw_fragment_shader;
  50 struct tgsi_sampler;
  51 struct gallivm_state;
  52
  53
  54
  55 struct draw_context *draw_create( struct pipe_context *pipe );
  56
  57 struct draw_context *
  58 draw_create_gallivm(struct pipe_context *pipe, struct gallivm_state *gallivm);
  59
  60 void draw_destroy( struct draw_context *draw );
  61
  62 void draw_flush(struct draw_context *draw);
  63
  64 void draw_set_viewport_state( struct draw_context *draw,
  65                               const struct pipe_viewport_state *viewport );
  66
  67 void draw_set_clip_state( struct draw_context *pipe,
  68                           const struct pipe_clip_state *clip );
  69
  70 void draw_set_rasterizer_state( struct draw_context *draw,
  71                                 const struct pipe_rasterizer_state *raster,
  72                                 void *rast_handle );
  73
  74 void draw_set_rasterize_stage( struct draw_context *draw,
  75                                struct draw_stage *stage );
  76
  77 void draw_wide_point_threshold(struct draw_context *draw, float threshold);
  78
  79 void draw_wide_point_sprites(struct draw_context *draw, boolean draw_sprite);
  80
  81 void draw_wide_line_threshold(struct draw_context *draw, float threshold);
  82
  83 void draw_enable_line_stipple(struct draw_context *draw, boolean enable);
  84
  85 void draw_enable_point_sprites(struct draw_context *draw, boolean enable);
  86
  87 void draw_set_mrd(struct draw_context *draw, double mrd);
  88
  89 boolean
  90 draw_install_aaline_stage(struct draw_context *draw, struct pipe_context *pipe);
  91
  92 boolean
  93 draw_install_aapoint_stage(struct draw_context *draw, struct pipe_context *pipe);
  94
  95 boolean
  96 draw_install_pstipple_stage(struct draw_context *draw, struct pipe_context *pipe);
  97
  98
  99 int
 100 draw_find_shader_output(const struct draw_context *draw,
 101                         uint semantic_name, uint semantic_index);
 102
 103 uint
 104 draw_num_shader_outputs(const struct draw_context *draw);
 105
 106
 107 void
 108 draw_texture_samplers(struct draw_context *draw,
 109                       uint shader_type,
 110                       uint num_samplers,
 111                       struct tgsi_sampler **samplers);
 112
 113 void
 114 draw_set_sampler_views(struct draw_context *draw,
 115                        struct pipe_sampler_view **views,
 116                        unsigned num);
 117 void
 118 draw_set_samplers(struct draw_context *draw,
 119                   struct pipe_sampler_state **samplers,
 120                   unsigned num);
 121
 122 void
 123 draw_set_mapped_texture(struct draw_context *draw,
 124                         unsigned sampler_idx,
 125                         uint32_t width, uint32_t height, uint32_t depth,
 126                         uint32_t first_level, uint32_t last_level,
 127                         uint32_t row_stride[PIPE_MAX_TEXTURE_LEVELS],
 128                         uint32_t img_stride[PIPE_MAX_TEXTURE_LEVELS],
 129                         const void *data[PIPE_MAX_TEXTURE_LEVELS]);
 130
 131
 132 /*
 133  * Vertex shader functions
 134  */
 135
 136 struct draw_vertex_shader *
 137 draw_create_vertex_shader(struct draw_context *draw,
 138                           const struct pipe_shader_state *shader);
 139 void draw_bind_vertex_shader(struct draw_context *draw,
 140                              struct draw_vertex_shader *dvs);
 141 void draw_delete_vertex_shader(struct draw_context *draw,
 142                                struct draw_vertex_shader *dvs);
 143
 144
 145 /*
 146  * Fragment shader functions
 147  */
 148 struct draw_fragment_shader *
 149 draw_create_fragment_shader(struct draw_context *draw,
 150                             const struct pipe_shader_state *shader);
 151 void draw_bind_fragment_shader(struct draw_context *draw,
 152                                struct draw_fragment_shader *dvs);
 153 void draw_delete_fragment_shader(struct draw_context *draw,
 154                                  struct draw_fragment_shader *dvs);
 155
 156 /*
 157  * Geometry shader functions
 158  */
 159 struct draw_geometry_shader *
 160 draw_create_geometry_shader(struct draw_context *draw,
 161                             const struct pipe_shader_state *shader);
 162 void draw_bind_geometry_shader(struct draw_context *draw,
 163                                struct draw_geometry_shader *dvs);
 164 void draw_delete_geometry_shader(struct draw_context *draw,
 165                                  struct draw_geometry_shader *dvs);
 166
 167
 168 /*
 169  * Vertex data functions
 170  */
 171
 172 void draw_set_vertex_buffers(struct draw_context *draw,
 173                              unsigned count,
 174                              const struct pipe_vertex_buffer *buffers);
 175
 176 void draw_set_vertex_elements(struct draw_context *draw,
 177                               unsigned count,
 178                               const struct pipe_vertex_element *elements);
 179
 180 void draw_set_index_buffer(struct draw_context *draw,
 181                            const struct pipe_index_buffer *ib);
 182
 183 void draw_set_mapped_index_buffer(struct draw_context *draw,
 184                                   const void *elements);
 185
 186 void draw_set_mapped_vertex_buffer(struct draw_context *draw,
 187                                    unsigned attr, const void *buffer);
 188
 189 void
 190 draw_set_mapped_constant_buffer(struct draw_context *draw,
 191                                 unsigned shader_type,
 192                                 unsigned slot,
 193                                 const void *buffer,
 194                                 unsigned size);
 195
 196 void
 197 draw_set_mapped_so_buffers(struct draw_context *draw,
 198                            void *buffers[PIPE_MAX_SO_BUFFERS],
 199                            unsigned num_buffers);
 200 void
 201 draw_set_so_state(struct draw_context *draw,
 202                   struct pipe_stream_output_state *state);
 203
 204
 205 /***********************************************************************
 206  * draw_pt.c
 207  */
 208
 209 void draw_vbo(struct draw_context *draw,
 210               const struct pipe_draw_info *info);
 211
 212 void draw_arrays(struct draw_context *draw, unsigned prim,
 213                  unsigned start, unsigned count);
 214
 215 void
 216 draw_arrays_instanced(struct draw_context *draw,
 217                       unsigned mode,
 218                       unsigned start,
 219                       unsigned count,
 220                       unsigned startInstance,
 221                       unsigned instanceCount);
 222
 223
 224 /*******************************************************************************
 225  * Driver backend interface
 226  */
 227 struct vbuf_render;
 228 void draw_set_render( struct draw_context *draw,
 229                       struct vbuf_render *render );
 230
 231 void draw_set_driver_clipping( struct draw_context *draw,
 232                                boolean bypass_clip_xy,
 233                                boolean bypass_clip_z );
 234
 235 void draw_set_force_passthrough( struct draw_context *draw,
 236                                  boolean enable );
 237
 238 /*******************************************************************************
 239  * Draw pipeline
 240  */
 241 boolean draw_need_pipeline(const struct draw_context *draw,
 242                            const struct pipe_rasterizer_state *rasterizer,
 243                            unsigned prim );
 244
 245 static INLINE int
 246 draw_get_shader_param(unsigned shader, enum pipe_shader_cap param)
 247 {
 248    switch(shader) {
 249    case PIPE_SHADER_VERTEX:
 250    case PIPE_SHADER_GEOMETRY:
 251       return tgsi_exec_get_shader_param(param);
 252    default:
 253       return 0;
 254    }
 255 }
 256
 257 #endif /* DRAW_CONTEXT_H */