src/gallium/auxiliary/draw/draw_context.h

   1
   2 /**************************************************************************
   3  *
   4  * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
   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 TUNGSTEN GRAPHICS 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 <keith@tungstengraphics.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
  52 /*
  53  * structure to contain driver internal information
  54  * for stream out support. mapping stores the pointer
  55  * to the buffer contents, and internal offset stores
  56  * stores an internal counter to how much of the stream
  57  * out buffer is used (in bytes).
  58  */
  59 struct draw_so_target {
  60    struct pipe_stream_output_target target;
  61    void *mapping;
  62    int internal_offset;
  63    int emitted_vertices;
  64 };
  65
  66 struct draw_context *draw_create( struct pipe_context *pipe );
  67
  68 struct draw_context *draw_create_no_llvm(struct pipe_context *pipe);
  69
  70 void draw_destroy( struct draw_context *draw );
  71
  72 void draw_flush(struct draw_context *draw);
  73
  74 void draw_set_viewport_states( struct draw_context *draw,
  75                                unsigned start_slot,
  76                                unsigned num_viewports,
  77                                const struct pipe_viewport_state *viewports );
  78
  79 void draw_set_clip_state( struct draw_context *pipe,
  80                           const struct pipe_clip_state *clip );
  81
  82 /**
  83  * Sets the rasterization state used by the draw module.
  84  * The rast_handle is used to pass the driver specific representation
  85  * of the rasterization state. It's going to be used when the
  86  * draw module sets the state back on the driver itself using the
  87  * pipe::bind_rasterizer_state method.
  88  *
  89  * NOTE: if you're calling this function from within the pipe's
  90  * bind_rasterizer_state you should always call it before binding
  91  * the actual state - that's because the draw module can try to
  92  * bind its own rasterizer state which would reset your newly
  93  * set state. i.e. always do
  94  * draw_set_rasterizer_state(driver->draw, state->pipe_state, state);
  95  * driver->state.raster = state;
  96  */
  97 void draw_set_rasterizer_state( struct draw_context *draw,
  98                                 const struct pipe_rasterizer_state *raster,
  99                                 void *rast_handle );
 100
 101 void draw_set_rasterize_stage( struct draw_context *draw,
 102                                struct draw_stage *stage );
 103
 104 void draw_wide_point_threshold(struct draw_context *draw, float threshold);
 105
 106 void draw_wide_point_sprites(struct draw_context *draw, boolean draw_sprite);
 107
 108 void draw_wide_line_threshold(struct draw_context *draw, float threshold);
 109
 110 void draw_enable_line_stipple(struct draw_context *draw, boolean enable);
 111
 112 void draw_enable_point_sprites(struct draw_context *draw, boolean enable);
 113
 114 void draw_set_mrd(struct draw_context *draw, double mrd);
 115
 116 boolean
 117 draw_install_aaline_stage(struct draw_context *draw, struct pipe_context *pipe);
 118
 119 boolean
 120 draw_install_aapoint_stage(struct draw_context *draw, struct pipe_context *pipe);
 121
 122 boolean
 123 draw_install_pstipple_stage(struct draw_context *draw, struct pipe_context *pipe);
 124
 125
 126 struct tgsi_shader_info *
 127 draw_get_shader_info(const struct draw_context *draw);
 128
 129 int
 130 draw_find_shader_output(const struct draw_context *draw,
 131                         uint semantic_name, uint semantic_index);
 132
 133 uint
 134 draw_num_shader_outputs(const struct draw_context *draw);
 135
 136
 137 void
 138 draw_texture_sampler(struct draw_context *draw,
 139                      uint shader_type,
 140                      struct tgsi_sampler *sampler);
 141
 142 void
 143 draw_set_sampler_views(struct draw_context *draw,
 144                        unsigned shader_stage,
 145                        struct pipe_sampler_view **views,
 146                        unsigned num);
 147 void
 148 draw_set_samplers(struct draw_context *draw,
 149                   unsigned shader_stage,
 150                   struct pipe_sampler_state **samplers,
 151                   unsigned num);
 152
 153 void
 154 draw_set_mapped_texture(struct draw_context *draw,
 155                         unsigned shader_stage,
 156                         unsigned sview_idx,
 157                         uint32_t width, uint32_t height, uint32_t depth,
 158                         uint32_t first_level, uint32_t last_level,
 159                         const void *base,
 160                         uint32_t row_stride[PIPE_MAX_TEXTURE_LEVELS],
 161                         uint32_t img_stride[PIPE_MAX_TEXTURE_LEVELS],
 162                         uint32_t mip_offsets[PIPE_MAX_TEXTURE_LEVELS]);
 163
 164
 165 /*
 166  * Vertex shader functions
 167  */
 168
 169 struct draw_vertex_shader *
 170 draw_create_vertex_shader(struct draw_context *draw,
 171                           const struct pipe_shader_state *shader);
 172 void draw_bind_vertex_shader(struct draw_context *draw,
 173                              struct draw_vertex_shader *dvs);
 174 void draw_delete_vertex_shader(struct draw_context *draw,
 175                                struct draw_vertex_shader *dvs);
 176 void draw_vs_attach_so(struct draw_vertex_shader *dvs,
 177                        const struct pipe_stream_output_info *info);
 178 void draw_vs_reset_so(struct draw_vertex_shader *dvs);
 179
 180
 181 /*
 182  * Fragment shader functions
 183  */
 184 struct draw_fragment_shader *
 185 draw_create_fragment_shader(struct draw_context *draw,
 186                             const struct pipe_shader_state *shader);
 187 void draw_bind_fragment_shader(struct draw_context *draw,
 188                                struct draw_fragment_shader *dvs);
 189 void draw_delete_fragment_shader(struct draw_context *draw,
 190                                  struct draw_fragment_shader *dvs);
 191
 192 /*
 193  * Geometry shader functions
 194  */
 195 struct draw_geometry_shader *
 196 draw_create_geometry_shader(struct draw_context *draw,
 197                             const struct pipe_shader_state *shader);
 198 void draw_bind_geometry_shader(struct draw_context *draw,
 199                                struct draw_geometry_shader *dvs);
 200 void draw_delete_geometry_shader(struct draw_context *draw,
 201                                  struct draw_geometry_shader *dvs);
 202
 203
 204 /*
 205  * Vertex data functions
 206  */
 207
 208 void draw_set_vertex_buffers(struct draw_context *draw,
 209                              unsigned start_slot, unsigned count,
 210                              const struct pipe_vertex_buffer *buffers);
 211
 212 void draw_set_vertex_elements(struct draw_context *draw,
 213                               unsigned count,
 214                               const struct pipe_vertex_element *elements);
 215
 216 void draw_set_indexes(struct draw_context *draw,
 217                       const void *elements, unsigned elem_size,
 218                       unsigned available_space);
 219
 220 void draw_set_mapped_vertex_buffer(struct draw_context *draw,
 221                                    unsigned attr, const void *buffer,
 222                                    size_t size);
 223
 224 void
 225 draw_set_mapped_constant_buffer(struct draw_context *draw,
 226                                 unsigned shader_type,
 227                                 unsigned slot,
 228                                 const void *buffer,
 229                                 unsigned size);
 230
 231 void
 232 draw_set_mapped_so_targets(struct draw_context *draw,
 233                            int num_targets,
 234                            struct draw_so_target *targets[PIPE_MAX_SO_BUFFERS]);
 235
 236
 237 /***********************************************************************
 238  * draw_pt.c
 239  */
 240
 241 void draw_vbo(struct draw_context *draw,
 242               const struct pipe_draw_info *info);
 243
 244
 245 /*******************************************************************************
 246  * Driver backend interface
 247  */
 248 struct vbuf_render;
 249 void draw_set_render( struct draw_context *draw,
 250                       struct vbuf_render *render );
 251
 252 void draw_set_driver_clipping( struct draw_context *draw,
 253                                boolean bypass_clip_xy,
 254                                boolean bypass_clip_z,
 255                                boolean guard_band_xy);
 256
 257 void draw_set_force_passthrough( struct draw_context *draw,
 258                                  boolean enable );
 259
 260
 261 /*******************************************************************************
 262  * Draw statistics
 263  */
 264 void draw_collect_pipeline_statistics(struct draw_context *draw,
 265                                       boolean enable);
 266
 267 /*******************************************************************************
 268  * Draw pipeline
 269  */
 270 boolean draw_need_pipeline(const struct draw_context *draw,
 271                            const struct pipe_rasterizer_state *rasterizer,
 272                            unsigned prim );
 273
 274 int
 275 draw_get_shader_param(unsigned shader, enum pipe_shader_cap param);
 276
 277 int
 278 draw_get_shader_param_no_llvm(unsigned shader, enum pipe_shader_cap param);
 279
 280 #ifdef HAVE_LLVM
 281 boolean
 282 draw_get_option_use_llvm(void);
 283 #endif
 284
 285 #endif /* DRAW_CONTEXT_H */