src/gallium/auxiliary/draw/draw_context.h

   1
   2 /**************************************************************************
   3  *
   4  * Copyright 2007 VMware, Inc.
   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 VMWARE 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 <keithw@vmware.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 draw_tess_ctrl_shader;
  49 struct draw_tess_eval_shader;
  50 struct draw_fragment_shader;
  51 struct tgsi_sampler;
  52 struct tgsi_image;
  53 struct tgsi_buffer;
  54
  55 /*
  56  * structure to contain driver internal information
  57  * for stream out support. mapping stores the pointer
  58  * to the buffer contents, and internal offset stores
  59  * an internal counter to how much of the stream
  60  * out buffer is used (in bytes).
  61  */
  62 struct draw_so_target {
  63    struct pipe_stream_output_target target;
  64    void *mapping;
  65    int internal_offset;
  66 };
  67
  68 bool draw_has_llvm(void);
  69
  70 struct draw_context *draw_create( struct pipe_context *pipe );
  71
  72 #ifdef LLVM_AVAILABLE
  73 struct draw_context *draw_create_with_llvm_context(struct pipe_context *pipe,
  74                                                    void *context);
  75 #endif
  76
  77 struct draw_context *draw_create_no_llvm(struct pipe_context *pipe);
  78
  79 void draw_destroy( struct draw_context *draw );
  80
  81 void draw_flush(struct draw_context *draw);
  82
  83 void draw_set_viewport_states( struct draw_context *draw,
  84                                unsigned start_slot,
  85                                unsigned num_viewports,
  86                                const struct pipe_viewport_state *viewports );
  87
  88 void draw_set_clip_state( struct draw_context *pipe,
  89                           const struct pipe_clip_state *clip );
  90
  91 /**
  92  * Sets the rasterization state used by the draw module.
  93  * The rast_handle is used to pass the driver specific representation
  94  * of the rasterization state. It's going to be used when the
  95  * draw module sets the state back on the driver itself using the
  96  * pipe::bind_rasterizer_state method.
  97  *
  98  * NOTE: if you're calling this function from within the pipe's
  99  * bind_rasterizer_state you should always call it before binding
 100  * the actual state - that's because the draw module can try to
 101  * bind its own rasterizer state which would reset your newly
 102  * set state. i.e. always do
 103  * draw_set_rasterizer_state(driver->draw, state->pipe_state, state);
 104  * driver->state.raster = state;
 105  */
 106 void draw_set_rasterizer_state( struct draw_context *draw,
 107                                 const struct pipe_rasterizer_state *raster,
 108                                 void *rast_handle );
 109
 110 void draw_set_rasterize_stage( struct draw_context *draw,
 111                                struct draw_stage *stage );
 112
 113 void draw_wide_point_threshold(struct draw_context *draw, float threshold);
 114
 115 void draw_wide_point_sprites(struct draw_context *draw, boolean draw_sprite);
 116
 117 void draw_wide_line_threshold(struct draw_context *draw, float threshold);
 118
 119 void draw_enable_line_stipple(struct draw_context *draw, boolean enable);
 120
 121 void draw_enable_point_sprites(struct draw_context *draw, boolean enable);
 122
 123 void draw_set_zs_format(struct draw_context *draw, enum pipe_format format);
 124
 125 boolean
 126 draw_install_aaline_stage(struct draw_context *draw, struct pipe_context *pipe);
 127
 128 boolean
 129 draw_install_aapoint_stage(struct draw_context *draw, struct pipe_context *pipe);
 130
 131 boolean
 132 draw_install_pstipple_stage(struct draw_context *draw, struct pipe_context *pipe);
 133
 134
 135 struct tgsi_shader_info *
 136 draw_get_shader_info(const struct draw_context *draw);
 137
 138 void
 139 draw_prepare_shader_outputs(struct draw_context *draw);
 140
 141 int
 142 draw_find_shader_output(const struct draw_context *draw,
 143                         uint semantic_name, uint semantic_index);
 144
 145 boolean
 146 draw_will_inject_frontface(const struct draw_context *draw);
 147
 148 uint
 149 draw_num_shader_outputs(const struct draw_context *draw);
 150
 151 uint
 152 draw_total_vs_outputs(const struct draw_context *draw);
 153
 154 uint
 155 draw_total_gs_outputs(const struct draw_context *draw);
 156
 157 uint
 158 draw_total_tcs_outputs(const struct draw_context *draw);
 159
 160 uint
 161 draw_total_tes_outputs(const struct draw_context *draw);
 162
 163 void
 164 draw_texture_sampler(struct draw_context *draw,
 165                      enum pipe_shader_type shader_type,
 166                      struct tgsi_sampler *sampler);
 167
 168 void
 169 draw_image(struct draw_context *draw,
 170            enum pipe_shader_type shader_type,
 171            struct tgsi_image *image);
 172
 173 void
 174 draw_buffer(struct draw_context *draw,
 175            enum pipe_shader_type shader_type,
 176            struct tgsi_buffer *buffer);
 177
 178 void
 179 draw_set_sampler_views(struct draw_context *draw,
 180                        enum pipe_shader_type shader_stage,
 181                        struct pipe_sampler_view **views,
 182                        unsigned num);
 183 void
 184 draw_set_samplers(struct draw_context *draw,
 185                   enum pipe_shader_type shader_stage,
 186                   struct pipe_sampler_state **samplers,
 187                   unsigned num);
 188
 189 void
 190 draw_set_images(struct draw_context *draw,
 191                 enum pipe_shader_type shader_stage,
 192                 struct pipe_image_view *images,
 193                 unsigned num);
 194
 195 void
 196 draw_set_mapped_texture(struct draw_context *draw,
 197                         enum pipe_shader_type shader_stage,
 198                         unsigned sview_idx,
 199                         uint32_t width, uint32_t height, uint32_t depth,
 200                         uint32_t first_level, uint32_t last_level,
 201                         uint32_t num_samples,
 202                         uint32_t sample_stride,
 203                         const void *base,
 204                         uint32_t row_stride[PIPE_MAX_TEXTURE_LEVELS],
 205                         uint32_t img_stride[PIPE_MAX_TEXTURE_LEVELS],
 206                         uint32_t mip_offsets[PIPE_MAX_TEXTURE_LEVELS]);
 207
 208 void
 209 draw_set_mapped_image(struct draw_context *draw,
 210                       enum pipe_shader_type shader_stage,
 211                       unsigned idx,
 212                       uint32_t width, uint32_t height, uint32_t depth,
 213                       const void *base_ptr,
 214                       uint32_t row_stride,
 215                       uint32_t img_stride,
 216                       uint32_t num_samples,
 217                       uint32_t sample_stride);
 218
 219 /*
 220  * Vertex shader functions
 221  */
 222
 223 struct draw_vertex_shader *
 224 draw_create_vertex_shader(struct draw_context *draw,
 225                           const struct pipe_shader_state *shader);
 226 void draw_bind_vertex_shader(struct draw_context *draw,
 227                              struct draw_vertex_shader *dvs);
 228 void draw_delete_vertex_shader(struct draw_context *draw,
 229                                struct draw_vertex_shader *dvs);
 230 void draw_vs_attach_so(struct draw_vertex_shader *dvs,
 231                        const struct pipe_stream_output_info *info);
 232 void draw_vs_reset_so(struct draw_vertex_shader *dvs);
 233
 234
 235 /*
 236  * Fragment shader functions
 237  */
 238 struct draw_fragment_shader *
 239 draw_create_fragment_shader(struct draw_context *draw,
 240                             const struct pipe_shader_state *shader);
 241 void draw_bind_fragment_shader(struct draw_context *draw,
 242                                struct draw_fragment_shader *dvs);
 243 void draw_delete_fragment_shader(struct draw_context *draw,
 244                                  struct draw_fragment_shader *dvs);
 245
 246 /*
 247  * Geometry shader functions
 248  */
 249 struct draw_geometry_shader *
 250 draw_create_geometry_shader(struct draw_context *draw,
 251                             const struct pipe_shader_state *shader);
 252 void draw_bind_geometry_shader(struct draw_context *draw,
 253                                struct draw_geometry_shader *dvs);
 254 void draw_delete_geometry_shader(struct draw_context *draw,
 255                                  struct draw_geometry_shader *dvs);
 256
 257 /*
 258  * Tess shader functions
 259  */
 260 struct draw_tess_ctrl_shader *
 261 draw_create_tess_ctrl_shader(struct draw_context *draw,
 262                             const struct pipe_shader_state *shader);
 263 void draw_bind_tess_ctrl_shader(struct draw_context *draw,
 264                                 struct draw_tess_ctrl_shader *dvs);
 265 void draw_delete_tess_ctrl_shader(struct draw_context *draw,
 266                                   struct draw_tess_ctrl_shader *dvs);
 267 struct draw_tess_eval_shader *
 268 draw_create_tess_eval_shader(struct draw_context *draw,
 269                             const struct pipe_shader_state *shader);
 270 void draw_bind_tess_eval_shader(struct draw_context *draw,
 271                                 struct draw_tess_eval_shader *dvs);
 272 void draw_delete_tess_eval_shader(struct draw_context *draw,
 273                                   struct draw_tess_eval_shader *dvs);
 274 void draw_set_tess_state(struct draw_context *draw,
 275                          const float default_outer_level[4],
 276                          const float default_inner_level[2]);
 277
 278 /*
 279  * Vertex data functions
 280  */
 281
 282 void draw_set_vertex_buffers(struct draw_context *draw,
 283                              unsigned start_slot, unsigned count,
 284                              const struct pipe_vertex_buffer *buffers);
 285
 286 void draw_set_vertex_elements(struct draw_context *draw,
 287                               unsigned count,
 288                               const struct pipe_vertex_element *elements);
 289
 290 void draw_set_indexes(struct draw_context *draw,
 291                       const void *elements, unsigned elem_size,
 292                       unsigned available_space);
 293
 294 void draw_set_mapped_vertex_buffer(struct draw_context *draw,
 295                                    unsigned attr, const void *buffer,
 296                                    size_t size);
 297
 298 void
 299 draw_set_mapped_constant_buffer(struct draw_context *draw,
 300                                 enum pipe_shader_type shader_type,
 301                                 unsigned slot,
 302                                 const void *buffer,
 303                                 unsigned size);
 304
 305 void
 306 draw_set_mapped_shader_buffer(struct draw_context *draw,
 307                               enum pipe_shader_type shader_type,
 308                               unsigned slot,
 309                               const void *buffer,
 310                               unsigned size);
 311
 312 void
 313 draw_set_mapped_so_targets(struct draw_context *draw,
 314                            int num_targets,
 315                            struct draw_so_target *targets[PIPE_MAX_SO_BUFFERS]);
 316
 317
 318 /***********************************************************************
 319  * draw_pt.c
 320  */
 321
 322 void draw_vbo(struct draw_context *draw,
 323               const struct pipe_draw_info *info);
 324
 325
 326 /*******************************************************************************
 327  * Driver backend interface
 328  */
 329 struct vbuf_render;
 330 void draw_set_render( struct draw_context *draw,
 331                       struct vbuf_render *render );
 332
 333 void draw_set_driver_clipping( struct draw_context *draw,
 334                                boolean bypass_clip_xy,
 335                                boolean bypass_clip_z,
 336                                boolean guard_band_xy,
 337                                boolean bypass_clip_points);
 338
 339 void draw_set_force_passthrough( struct draw_context *draw,
 340                                  boolean enable );
 341
 342
 343 /*******************************************************************************
 344  * Draw statistics
 345  */
 346 void draw_collect_pipeline_statistics(struct draw_context *draw,
 347                                       boolean enable);
 348
 349 void draw_collect_primitives_generated(struct draw_context *draw,
 350                                        bool eanble);
 351
 352 /*******************************************************************************
 353  * Draw pipeline
 354  */
 355 boolean draw_need_pipeline(const struct draw_context *draw,
 356                            const struct pipe_rasterizer_state *rasterizer,
 357                            unsigned prim );
 358
 359 int
 360 draw_get_shader_param(enum pipe_shader_type shader, enum pipe_shader_cap param);
 361
 362 int
 363 draw_get_shader_param_no_llvm(enum pipe_shader_type shader,
 364                               enum pipe_shader_cap param);
 365
 366 boolean
 367 draw_get_option_use_llvm(void);
 368
 369 struct lp_cached_code;
 370 void
 371 draw_set_disk_cache_callbacks(struct draw_context *draw,
 372                               void *data_cookie,
 373                               void (*find_shader)(void *cookie,
 374                                                   struct lp_cached_code *cache,
 375                                                   unsigned char ir_sha1_cache_key[20]),
 376                               void (*insert_shader)(void *cookie,
 377                                                     struct lp_cached_code *cache,
 378                                                     unsigned char ir_sha1_cache_key[20]));
 379 #endif /* DRAW_CONTEXT_H */