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 struct gallivm_state;
  52
  53
  54
  55 struct draw_context *draw_create( struct pipe_context *pipe );
  56
  57 struct draw_context *
  58 draw_create_gallivm(struct pipe_context *pipe, struct gallivm_state *gallivm);
  59
  60 void draw_destroy( struct draw_context *draw );
  61
  62 void draw_flush(struct draw_context *draw);
  63
  64 void draw_set_viewport_state( struct draw_context *draw,
  65                               const struct pipe_viewport_state *viewport );
  66
  67 void draw_set_clip_state( struct draw_context *pipe,
  68                           const struct pipe_clip_state *clip );
  69
  70 void draw_set_rasterizer_state( struct draw_context *draw,
  71                                 const struct pipe_rasterizer_state *raster,
  72                                 void *rast_handle );
  73
  74 void draw_set_rasterize_stage( struct draw_context *draw,
  75                                struct draw_stage *stage );
  76
  77 void draw_wide_point_threshold(struct draw_context *draw, float threshold);
  78
  79 void draw_wide_point_sprites(struct draw_context *draw, boolean draw_sprite);
  80
  81 void draw_wide_line_threshold(struct draw_context *draw, float threshold);
  82
  83 void draw_enable_line_stipple(struct draw_context *draw, boolean enable);
  84
  85 void draw_enable_point_sprites(struct draw_context *draw, boolean enable);
  86
  87 void draw_set_mrd(struct draw_context *draw, double mrd);
  88
  89 boolean
  90 draw_install_aaline_stage(struct draw_context *draw, struct pipe_context *pipe);
  91
  92 boolean
  93 draw_install_aapoint_stage(struct draw_context *draw, struct pipe_context *pipe);
  94
  95 boolean
  96 draw_install_pstipple_stage(struct draw_context *draw, struct pipe_context *pipe);
  97
  98
  99 struct tgsi_shader_info *
 100 draw_get_shader_info(const struct draw_context *draw);
 101
 102 int
 103 draw_find_shader_output(const struct draw_context *draw,
 104                         uint semantic_name, uint semantic_index);
 105
 106 uint
 107 draw_num_shader_outputs(const struct draw_context *draw);
 108
 109
 110 void
 111 draw_texture_samplers(struct draw_context *draw,
 112                       uint shader_type,
 113                       uint num_samplers,
 114                       struct tgsi_sampler **samplers);
 115
 116 void
 117 draw_set_sampler_views(struct draw_context *draw,
 118                        struct pipe_sampler_view **views,
 119                        unsigned num);
 120 void
 121 draw_set_samplers(struct draw_context *draw,
 122                   struct pipe_sampler_state **samplers,
 123                   unsigned num);
 124
 125 void
 126 draw_set_mapped_texture(struct draw_context *draw,
 127                         unsigned sampler_idx,
 128                         uint32_t width, uint32_t height, uint32_t depth,
 129                         uint32_t first_level, uint32_t last_level,
 130                         uint32_t row_stride[PIPE_MAX_TEXTURE_LEVELS],
 131                         uint32_t img_stride[PIPE_MAX_TEXTURE_LEVELS],
 132                         const void *data[PIPE_MAX_TEXTURE_LEVELS]);
 133
 134
 135 /*
 136  * Vertex shader functions
 137  */
 138
 139 struct draw_vertex_shader *
 140 draw_create_vertex_shader(struct draw_context *draw,
 141                           const struct pipe_shader_state *shader);
 142 void draw_bind_vertex_shader(struct draw_context *draw,
 143                              struct draw_vertex_shader *dvs);
 144 void draw_delete_vertex_shader(struct draw_context *draw,
 145                                struct draw_vertex_shader *dvs);
 146
 147
 148 /*
 149  * Fragment shader functions
 150  */
 151 struct draw_fragment_shader *
 152 draw_create_fragment_shader(struct draw_context *draw,
 153                             const struct pipe_shader_state *shader);
 154 void draw_bind_fragment_shader(struct draw_context *draw,
 155                                struct draw_fragment_shader *dvs);
 156 void draw_delete_fragment_shader(struct draw_context *draw,
 157                                  struct draw_fragment_shader *dvs);
 158
 159 /*
 160  * Geometry shader functions
 161  */
 162 struct draw_geometry_shader *
 163 draw_create_geometry_shader(struct draw_context *draw,
 164                             const struct pipe_shader_state *shader);
 165 void draw_bind_geometry_shader(struct draw_context *draw,
 166                                struct draw_geometry_shader *dvs);
 167 void draw_delete_geometry_shader(struct draw_context *draw,
 168                                  struct draw_geometry_shader *dvs);
 169
 170
 171 /*
 172  * Vertex data functions
 173  */
 174
 175 void draw_set_vertex_buffers(struct draw_context *draw,
 176                              unsigned count,
 177                              const struct pipe_vertex_buffer *buffers);
 178
 179 void draw_set_vertex_elements(struct draw_context *draw,
 180                               unsigned count,
 181                               const struct pipe_vertex_element *elements);
 182
 183 void draw_set_index_buffer(struct draw_context *draw,
 184                            const struct pipe_index_buffer *ib);
 185
 186 void draw_set_mapped_index_buffer(struct draw_context *draw,
 187                                   const void *elements);
 188
 189 void draw_set_mapped_vertex_buffer(struct draw_context *draw,
 190                                    unsigned attr, const void *buffer);
 191
 192 void
 193 draw_set_mapped_constant_buffer(struct draw_context *draw,
 194                                 unsigned shader_type,
 195                                 unsigned slot,
 196                                 const void *buffer,
 197                                 unsigned size);
 198
 199 void
 200 draw_set_mapped_so_buffers(struct draw_context *draw,
 201                            void *buffers[PIPE_MAX_SO_BUFFERS],
 202                            unsigned num_buffers);
 203 void
 204 draw_set_so_state(struct draw_context *draw,
 205                   struct pipe_stream_output_info *state);
 206
 207
 208 /***********************************************************************
 209  * draw_pt.c
 210  */
 211
 212 void draw_vbo(struct draw_context *draw,
 213               const struct pipe_draw_info *info);
 214
 215 void draw_arrays(struct draw_context *draw, unsigned prim,
 216                  unsigned start, unsigned count);
 217
 218 void
 219 draw_arrays_instanced(struct draw_context *draw,
 220                       unsigned mode,
 221                       unsigned start,
 222                       unsigned count,
 223                       unsigned startInstance,
 224                       unsigned instanceCount);
 225
 226
 227 /*******************************************************************************
 228  * Driver backend interface
 229  */
 230 struct vbuf_render;
 231 void draw_set_render( struct draw_context *draw,
 232                       struct vbuf_render *render );
 233
 234 void draw_set_driver_clipping( struct draw_context *draw,
 235                                boolean bypass_clip_xy,
 236                                boolean bypass_clip_z,
 237                                boolean guard_band_xy);
 238
 239 void draw_set_force_passthrough( struct draw_context *draw,
 240                                  boolean enable );
 241
 242 /*******************************************************************************
 243  * Draw pipeline
 244  */
 245 boolean draw_need_pipeline(const struct draw_context *draw,
 246                            const struct pipe_rasterizer_state *rasterizer,
 247                            unsigned prim );
 248
 249 static INLINE int
 250 draw_get_shader_param(unsigned shader, enum pipe_shader_cap param)
 251 {
 252    switch(shader) {
 253    case PIPE_SHADER_VERTEX:
 254    case PIPE_SHADER_GEOMETRY:
 255       return tgsi_exec_get_shader_param(param);
 256    default:
 257       return 0;
 258    }
 259 }
 260
 261 #endif /* DRAW_CONTEXT_H */