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                      uint shader_type,
 156                      struct tgsi_sampler *sampler);
 157
 158 void
 159 draw_image(struct draw_context *draw,
 160            uint shader_type,
 161            struct tgsi_image *image);
 162
 163 void
 164 draw_buffer(struct draw_context *draw,
 165            uint 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_mapped_texture(struct draw_context *draw,
 181                         unsigned shader_stage,
 182                         unsigned sview_idx,
 183                         uint32_t width, uint32_t height, uint32_t depth,
 184                         uint32_t first_level, uint32_t last_level,
 185                         const void *base,
 186                         uint32_t row_stride[PIPE_MAX_TEXTURE_LEVELS],
 187                         uint32_t img_stride[PIPE_MAX_TEXTURE_LEVELS],
 188                         uint32_t mip_offsets[PIPE_MAX_TEXTURE_LEVELS]);
 189
 190
 191 /*
 192  * Vertex shader functions
 193  */
 194
 195 struct draw_vertex_shader *
 196 draw_create_vertex_shader(struct draw_context *draw,
 197                           const struct pipe_shader_state *shader);
 198 void draw_bind_vertex_shader(struct draw_context *draw,
 199                              struct draw_vertex_shader *dvs);
 200 void draw_delete_vertex_shader(struct draw_context *draw,
 201                                struct draw_vertex_shader *dvs);
 202 void draw_vs_attach_so(struct draw_vertex_shader *dvs,
 203                        const struct pipe_stream_output_info *info);
 204 void draw_vs_reset_so(struct draw_vertex_shader *dvs);
 205
 206
 207 /*
 208  * Fragment shader functions
 209  */
 210 struct draw_fragment_shader *
 211 draw_create_fragment_shader(struct draw_context *draw,
 212                             const struct pipe_shader_state *shader);
 213 void draw_bind_fragment_shader(struct draw_context *draw,
 214                                struct draw_fragment_shader *dvs);
 215 void draw_delete_fragment_shader(struct draw_context *draw,
 216                                  struct draw_fragment_shader *dvs);
 217
 218 /*
 219  * Geometry shader functions
 220  */
 221 struct draw_geometry_shader *
 222 draw_create_geometry_shader(struct draw_context *draw,
 223                             const struct pipe_shader_state *shader);
 224 void draw_bind_geometry_shader(struct draw_context *draw,
 225                                struct draw_geometry_shader *dvs);
 226 void draw_delete_geometry_shader(struct draw_context *draw,
 227                                  struct draw_geometry_shader *dvs);
 228
 229
 230 /*
 231  * Vertex data functions
 232  */
 233
 234 void draw_set_vertex_buffers(struct draw_context *draw,
 235                              unsigned start_slot, unsigned count,
 236                              const struct pipe_vertex_buffer *buffers);
 237
 238 void draw_set_vertex_elements(struct draw_context *draw,
 239                               unsigned count,
 240                               const struct pipe_vertex_element *elements);
 241
 242 void draw_set_indexes(struct draw_context *draw,
 243                       const void *elements, unsigned elem_size,
 244                       unsigned available_space);
 245
 246 void draw_set_mapped_vertex_buffer(struct draw_context *draw,
 247                                    unsigned attr, const void *buffer,
 248                                    size_t size);
 249
 250 void
 251 draw_set_mapped_constant_buffer(struct draw_context *draw,
 252                                 unsigned shader_type,
 253                                 unsigned slot,
 254                                 const void *buffer,
 255                                 unsigned size);
 256
 257 void
 258 draw_set_mapped_so_targets(struct draw_context *draw,
 259                            int num_targets,
 260                            struct draw_so_target *targets[PIPE_MAX_SO_BUFFERS]);
 261
 262
 263 /***********************************************************************
 264  * draw_pt.c
 265  */
 266
 267 void draw_vbo(struct draw_context *draw,
 268               const struct pipe_draw_info *info);
 269
 270
 271 /*******************************************************************************
 272  * Driver backend interface
 273  */
 274 struct vbuf_render;
 275 void draw_set_render( struct draw_context *draw,
 276                       struct vbuf_render *render );
 277
 278 void draw_set_driver_clipping( struct draw_context *draw,
 279                                boolean bypass_clip_xy,
 280                                boolean bypass_clip_z,
 281                                boolean guard_band_xy,
 282                                boolean bypass_clip_points);
 283
 284 void draw_set_force_passthrough( struct draw_context *draw,
 285                                  boolean enable );
 286
 287
 288 /*******************************************************************************
 289  * Draw statistics
 290  */
 291 void draw_collect_pipeline_statistics(struct draw_context *draw,
 292                                       boolean enable);
 293
 294 /*******************************************************************************
 295  * Draw pipeline
 296  */
 297 boolean draw_need_pipeline(const struct draw_context *draw,
 298                            const struct pipe_rasterizer_state *rasterizer,
 299                            unsigned prim );
 300
 301 int
 302 draw_get_shader_param(enum pipe_shader_type shader, enum pipe_shader_cap param);
 303
 304 int
 305 draw_get_shader_param_no_llvm(enum pipe_shader_type shader,
 306                               enum pipe_shader_cap param);
 307
 308 boolean
 309 draw_get_option_use_llvm(void);
 310
 311 #endif /* DRAW_CONTEXT_H */