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