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