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