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 struct lp_cached_code; 55 56 57 /* 58 * structure to contain driver internal information 59 * for stream out support. mapping stores the pointer 60 * to the buffer contents, and internal offset stores 61 * an internal counter to how much of the stream 62 * out buffer is used (in bytes). 63 */ 64 struct draw_so_target { 65 struct pipe_stream_output_target target; 66 void *mapping; 67 int internal_offset; 68 }; 69 70 bool draw_has_llvm(void); 71 72 struct draw_context *draw_create(struct pipe_context *pipe); 73 74 #ifdef DRAW_LLVM_AVAILABLE 75 struct draw_context *draw_create_with_llvm_context(struct pipe_context *pipe, 76 void *context); 77 #endif 78 79 struct draw_context *draw_create_no_llvm(struct pipe_context *pipe); 80 81 void draw_destroy(struct draw_context *draw); 82 83 void draw_flush(struct draw_context *draw); 84 85 void draw_set_viewport_states(struct draw_context *draw, 86 unsigned start_slot, 87 unsigned num_viewports, 88 const struct pipe_viewport_state *viewports); 89 90 void draw_set_clip_state(struct draw_context *pipe, 91 const struct pipe_clip_state *clip); 92 93 /** 94 * Sets the rasterization state used by the draw module. 95 * The rast_handle is used to pass the driver specific representation 96 * of the rasterization state. It's going to be used when the 97 * draw module sets the state back on the driver itself using the 98 * pipe::bind_rasterizer_state method. 99 * 100 * NOTE: if you're calling this function from within the pipe's 101 * bind_rasterizer_state you should always call it before binding 102 * the actual state - that's because the draw module can try to 103 * bind its own rasterizer state which would reset your newly 104 * set state. i.e. always do 105 * draw_set_rasterizer_state(driver->draw, state->pipe_state, state); 106 * driver->state.raster = state; 107 */ 108 void draw_set_rasterizer_state(struct draw_context *draw, 109 const struct pipe_rasterizer_state *raster, 110 void *rast_handle); 111 112 void draw_set_rasterize_stage(struct draw_context *draw, 113 struct draw_stage *stage); 114 115 void draw_wide_point_threshold(struct draw_context *draw, float threshold); 116 117 void draw_wide_point_sprites(struct draw_context *draw, boolean draw_sprite); 118 119 void draw_wide_line_threshold(struct draw_context *draw, float threshold); 120 121 void draw_enable_line_stipple(struct draw_context *draw, boolean enable); 122 123 void draw_enable_point_sprites(struct draw_context *draw, boolean enable); 124 125 void draw_set_zs_format(struct draw_context *draw, enum pipe_format format); 126 127 /* for TGSI constants are 4 * sizeof(float), but for NIR they need to be sizeof(float); */ 128 void draw_set_constant_buffer_stride(struct draw_context *draw, unsigned num_bytes); 129 130 boolean 131 draw_install_aaline_stage(struct draw_context *draw, struct pipe_context *pipe); 132 133 boolean 134 draw_install_aapoint_stage(struct draw_context *draw, struct pipe_context *pipe); 135 136 boolean 137 draw_install_pstipple_stage(struct draw_context *draw, struct pipe_context *pipe); 138 139 140 struct tgsi_shader_info * 141 draw_get_shader_info(const struct draw_context *draw); 142 143 void 144 draw_prepare_shader_outputs(struct draw_context *draw); 145 146 int 147 draw_find_shader_output(const struct draw_context *draw, 148 uint semantic_name, uint semantic_index); 149 150 boolean 151 draw_will_inject_frontface(const struct draw_context *draw); 152 153 uint 154 draw_num_shader_outputs(const struct draw_context *draw); 155 156 uint 157 draw_total_vs_outputs(const struct draw_context *draw); 158 159 uint 160 draw_total_gs_outputs(const struct draw_context *draw); 161 162 uint 163 draw_total_tcs_outputs(const struct draw_context *draw); 164 165 uint 166 draw_total_tes_outputs(const struct draw_context *draw); 167 168 void 169 draw_texture_sampler(struct draw_context *draw, 170 enum pipe_shader_type shader_type, 171 struct tgsi_sampler *sampler); 172 173 void 174 draw_image(struct draw_context *draw, 175 enum pipe_shader_type shader_type, 176 struct tgsi_image *image); 177 178 void 179 draw_buffer(struct draw_context *draw, 180 enum pipe_shader_type shader_type, 181 struct tgsi_buffer *buffer); 182 183 void 184 draw_set_sampler_views(struct draw_context *draw, 185 enum pipe_shader_type shader_stage, 186 struct pipe_sampler_view **views, 187 unsigned num); 188 void 189 draw_set_samplers(struct draw_context *draw, 190 enum pipe_shader_type shader_stage, 191 struct pipe_sampler_state **samplers, 192 unsigned num); 193 194 void 195 draw_set_images(struct draw_context *draw, 196 enum pipe_shader_type shader_stage, 197 struct pipe_image_view *images, 198 unsigned num); 199 200 void 201 draw_set_mapped_texture(struct draw_context *draw, 202 enum pipe_shader_type shader_stage, 203 unsigned sview_idx, 204 uint32_t width, uint32_t height, uint32_t depth, 205 uint32_t first_level, uint32_t last_level, 206 uint32_t num_samples, 207 uint32_t sample_stride, 208 const void *base, 209 uint32_t row_stride[PIPE_MAX_TEXTURE_LEVELS], 210 uint32_t img_stride[PIPE_MAX_TEXTURE_LEVELS], 211 uint32_t mip_offsets[PIPE_MAX_TEXTURE_LEVELS]); 212 213 void 214 draw_set_mapped_image(struct draw_context *draw, 215 enum pipe_shader_type shader_stage, 216 unsigned idx, 217 uint32_t width, uint32_t height, uint32_t depth, 218 const void *base_ptr, 219 uint32_t row_stride, 220 uint32_t img_stride, 221 uint32_t num_samples, 222 uint32_t sample_stride); 223 224 /* 225 * Vertex shader functions 226 */ 227 228 struct draw_vertex_shader * 229 draw_create_vertex_shader(struct draw_context *draw, 230 const struct pipe_shader_state *shader); 231 void draw_bind_vertex_shader(struct draw_context *draw, 232 struct draw_vertex_shader *dvs); 233 void draw_delete_vertex_shader(struct draw_context *draw, 234 struct draw_vertex_shader *dvs); 235 void draw_vs_attach_so(struct draw_vertex_shader *dvs, 236 const struct pipe_stream_output_info *info); 237 void draw_vs_reset_so(struct draw_vertex_shader *dvs); 238 239 240 /* 241 * Fragment shader functions 242 */ 243 struct draw_fragment_shader * 244 draw_create_fragment_shader(struct draw_context *draw, 245 const struct pipe_shader_state *shader); 246 void draw_bind_fragment_shader(struct draw_context *draw, 247 struct draw_fragment_shader *dvs); 248 void draw_delete_fragment_shader(struct draw_context *draw, 249 struct draw_fragment_shader *dvs); 250 251 /* 252 * Geometry shader functions 253 */ 254 struct draw_geometry_shader * 255 draw_create_geometry_shader(struct draw_context *draw, 256 const struct pipe_shader_state *shader); 257 void draw_bind_geometry_shader(struct draw_context *draw, 258 struct draw_geometry_shader *dvs); 259 void draw_delete_geometry_shader(struct draw_context *draw, 260 struct draw_geometry_shader *dvs); 261 262 /* 263 * Tess shader functions 264 */ 265 struct draw_tess_ctrl_shader * 266 draw_create_tess_ctrl_shader(struct draw_context *draw, 267 const struct pipe_shader_state *shader); 268 void draw_bind_tess_ctrl_shader(struct draw_context *draw, 269 struct draw_tess_ctrl_shader *dvs); 270 void draw_delete_tess_ctrl_shader(struct draw_context *draw, 271 struct draw_tess_ctrl_shader *dvs); 272 struct draw_tess_eval_shader * 273 draw_create_tess_eval_shader(struct draw_context *draw, 274 const struct pipe_shader_state *shader); 275 void draw_bind_tess_eval_shader(struct draw_context *draw, 276 struct draw_tess_eval_shader *dvs); 277 void draw_delete_tess_eval_shader(struct draw_context *draw, 278 struct draw_tess_eval_shader *dvs); 279 void draw_set_tess_state(struct draw_context *draw, 280 const float default_outer_level[4], 281 const float default_inner_level[2]); 282 283 /* 284 * Vertex data functions 285 */ 286 287 void draw_set_vertex_buffers(struct draw_context *draw, 288 unsigned start_slot, unsigned count, 289 unsigned unbind_num_trailing_slots, 290 const struct pipe_vertex_buffer *buffers); 291 292 void draw_set_vertex_elements(struct draw_context *draw, 293 unsigned count, 294 const struct pipe_vertex_element *elements); 295 296 void draw_set_indexes(struct draw_context *draw, 297 const void *elements, unsigned elem_size, 298 unsigned available_space); 299 300 void draw_set_mapped_vertex_buffer(struct draw_context *draw, 301 unsigned attr, const void *buffer, 302 size_t size); 303 304 void 305 draw_set_mapped_constant_buffer(struct draw_context *draw, 306 enum pipe_shader_type shader_type, 307 unsigned slot, 308 const void *buffer, 309 unsigned size); 310 311 void 312 draw_set_mapped_shader_buffer(struct draw_context *draw, 313 enum pipe_shader_type shader_type, 314 unsigned slot, 315 const void *buffer, 316 unsigned size); 317 318 void 319 draw_set_mapped_so_targets(struct draw_context *draw, 320 int num_targets, 321 struct draw_so_target *targets[PIPE_MAX_SO_BUFFERS]); 322 323 324 /*********************************************************************** 325 * draw_pt.c 326 */ 327 328 void draw_vbo(struct draw_context *draw, 329 const struct pipe_draw_info *info, 330 unsigned drawid_offset, 331 const struct pipe_draw_indirect_info *indirect, 332 const struct pipe_draw_start_count_bias *draws, 333 unsigned num_draws, 334 uint8_t patch_vertices); 335 336 337 /******************************************************************************* 338 * Driver backend interface 339 */ 340 struct vbuf_render; 341 void 342 draw_set_render(struct draw_context *draw, 343 struct vbuf_render *render); 344 345 void 346 draw_set_driver_clipping(struct draw_context *draw, 347 boolean bypass_clip_xy, 348 boolean bypass_clip_z, 349 boolean guard_band_xy, 350 boolean bypass_clip_points); 351 352 /******************************************************************************* 353 * Draw statistics 354 */ 355 void 356 draw_collect_pipeline_statistics(struct draw_context *draw, 357 boolean enable); 358 359 void 360 draw_collect_primitives_generated(struct draw_context *draw, 361 bool eanble); 362 363 /******************************************************************************* 364 * Draw pipeline 365 */ 366 boolean 367 draw_need_pipeline(const struct draw_context *draw, 368 const struct pipe_rasterizer_state *rasterizer, 369 enum pipe_prim_type prim); 370 371 int 372 draw_get_shader_param(enum pipe_shader_type shader, enum pipe_shader_cap param); 373 374 int 375 draw_get_shader_param_no_llvm(enum pipe_shader_type shader, 376 enum pipe_shader_cap param); 377 378 boolean 379 draw_get_option_use_llvm(void); 380 381 382 void 383 draw_set_disk_cache_callbacks(struct draw_context *draw, 384 void *data_cookie, 385 void (*find_shader)(void *cookie, 386 struct lp_cached_code *cache, 387 unsigned char ir_sha1_cache_key[20]), 388 void (*insert_shader)(void *cookie, 389 struct lp_cached_code *cache, 390 unsigned char ir_sha1_cache_key[20])); 391 392 393 #endif /* DRAW_CONTEXT_H */ 394