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 #define DRAW_MAX_TEXTURE_LEVELS 13  /* 4K x 4K for now */
  53
  54 struct draw_context *draw_create( struct pipe_context *pipe );
  55
  56 void draw_destroy( struct draw_context *draw );
  57
  58 void draw_flush(struct draw_context *draw);
  59
  60 void draw_set_viewport_state( struct draw_context *draw,
  61                               const struct pipe_viewport_state *viewport );
  62
  63 void draw_set_clip_state( struct draw_context *pipe,
  64                           const struct pipe_clip_state *clip );
  65
  66 void draw_set_rasterizer_state( struct draw_context *draw,
  67                                 const struct pipe_rasterizer_state *raster,
  68                                 void *rast_handle );
  69
  70 void draw_set_rasterize_stage( struct draw_context *draw,
  71                                struct draw_stage *stage );
  72
  73 void draw_wide_point_threshold(struct draw_context *draw, float threshold);
  74
  75 void draw_wide_point_sprites(struct draw_context *draw, boolean draw_sprite);
  76
  77 void draw_wide_line_threshold(struct draw_context *draw, float threshold);
  78
  79 void draw_enable_line_stipple(struct draw_context *draw, boolean enable);
  80
  81 void draw_enable_point_sprites(struct draw_context *draw, boolean enable);
  82
  83 void draw_set_mrd(struct draw_context *draw, double mrd);
  84
  85 boolean
  86 draw_install_aaline_stage(struct draw_context *draw, struct pipe_context *pipe);
  87
  88 boolean
  89 draw_install_aapoint_stage(struct draw_context *draw, struct pipe_context *pipe);
  90
  91 boolean
  92 draw_install_pstipple_stage(struct draw_context *draw, struct pipe_context *pipe);
  93
  94
  95 int
  96 draw_find_shader_output(const struct draw_context *draw,
  97                         uint semantic_name, uint semantic_index);
  98
  99 uint
 100 draw_num_shader_outputs(const struct draw_context *draw);
 101
 102
 103 void
 104 draw_texture_samplers(struct draw_context *draw,
 105                       uint shader_type,
 106                       uint num_samplers,
 107                       struct tgsi_sampler **samplers);
 108
 109 void
 110 draw_set_sampler_views(struct draw_context *draw,
 111                        struct pipe_sampler_view **views,
 112                        unsigned num);
 113 void
 114 draw_set_samplers(struct draw_context *draw,
 115                   struct pipe_sampler_state **samplers,
 116                   unsigned num);
 117
 118 void
 119 draw_set_mapped_texture(struct draw_context *draw,
 120                         unsigned sampler_idx,
 121                         uint32_t width, uint32_t height, uint32_t depth,
 122                         uint32_t last_level,
 123                         uint32_t row_stride[DRAW_MAX_TEXTURE_LEVELS],
 124                         uint32_t img_stride[DRAW_MAX_TEXTURE_LEVELS],
 125                         const void *data[DRAW_MAX_TEXTURE_LEVELS]);
 126
 127
 128 /*
 129  * Vertex shader functions
 130  */
 131
 132 struct draw_vertex_shader *
 133 draw_create_vertex_shader(struct draw_context *draw,
 134                           const struct pipe_shader_state *shader);
 135 void draw_bind_vertex_shader(struct draw_context *draw,
 136                              struct draw_vertex_shader *dvs);
 137 void draw_delete_vertex_shader(struct draw_context *draw,
 138                                struct draw_vertex_shader *dvs);
 139
 140
 141 /*
 142  * Fragment shader functions
 143  */
 144 struct draw_fragment_shader *
 145 draw_create_fragment_shader(struct draw_context *draw,
 146                             const struct pipe_shader_state *shader);
 147 void draw_bind_fragment_shader(struct draw_context *draw,
 148                                struct draw_fragment_shader *dvs);
 149 void draw_delete_fragment_shader(struct draw_context *draw,
 150                                  struct draw_fragment_shader *dvs);
 151
 152 /*
 153  * Geometry shader functions
 154  */
 155 struct draw_geometry_shader *
 156 draw_create_geometry_shader(struct draw_context *draw,
 157                             const struct pipe_shader_state *shader);
 158 void draw_bind_geometry_shader(struct draw_context *draw,
 159                                struct draw_geometry_shader *dvs);
 160 void draw_delete_geometry_shader(struct draw_context *draw,
 161                                  struct draw_geometry_shader *dvs);
 162
 163
 164 /*
 165  * Vertex data functions
 166  */
 167
 168 void draw_set_vertex_buffers(struct draw_context *draw,
 169                              unsigned count,
 170                              const struct pipe_vertex_buffer *buffers);
 171
 172 void draw_set_vertex_elements(struct draw_context *draw,
 173                               unsigned count,
 174                               const struct pipe_vertex_element *elements);
 175
 176 void draw_set_index_buffer(struct draw_context *draw,
 177                            const struct pipe_index_buffer *ib);
 178
 179 void draw_set_mapped_index_buffer(struct draw_context *draw,
 180                                   const void *elements);
 181
 182 void draw_set_mapped_vertex_buffer(struct draw_context *draw,
 183                                    unsigned attr, const void *buffer);
 184
 185 void
 186 draw_set_mapped_constant_buffer(struct draw_context *draw,
 187                                 unsigned shader_type,
 188                                 unsigned slot,
 189                                 const void *buffer,
 190                                 unsigned size);
 191
 192 void
 193 draw_set_mapped_so_buffers(struct draw_context *draw,
 194                            void *buffers[PIPE_MAX_SO_BUFFERS],
 195                            unsigned num_buffers);
 196 void
 197 draw_set_so_state(struct draw_context *draw,
 198                   struct pipe_stream_output_state *state);
 199
 200
 201 /***********************************************************************
 202  * draw_pt.c
 203  */
 204
 205 void draw_vbo(struct draw_context *draw,
 206               const struct pipe_draw_info *info);
 207
 208 void draw_arrays(struct draw_context *draw, unsigned prim,
 209                  unsigned start, unsigned count);
 210
 211 void
 212 draw_arrays_instanced(struct draw_context *draw,
 213                       unsigned mode,
 214                       unsigned start,
 215                       unsigned count,
 216                       unsigned startInstance,
 217                       unsigned instanceCount);
 218
 219
 220 /*******************************************************************************
 221  * Driver backend interface
 222  */
 223 struct vbuf_render;
 224 void draw_set_render( struct draw_context *draw,
 225                       struct vbuf_render *render );
 226
 227 void draw_set_driver_clipping( struct draw_context *draw,
 228                                boolean bypass_clip_xy,
 229                                boolean bypass_clip_z );
 230
 231 void draw_set_force_passthrough( struct draw_context *draw,
 232                                  boolean enable );
 233
 234 /*******************************************************************************
 235  * Draw pipeline
 236  */
 237 boolean draw_need_pipeline(const struct draw_context *draw,
 238                            const struct pipe_rasterizer_state *rasterizer,
 239                            unsigned prim );
 240
 241 static INLINE int
 242 draw_get_shader_param(unsigned shader, enum pipe_cap param)
 243 {
 244    switch(shader) {
 245    case PIPE_SHADER_VERTEX:
 246    case PIPE_SHADER_GEOMETRY:
 247       return tgsi_exec_get_shader_param(param);
 248    default:
 249       return 0;
 250    }
 251 }
 252
 253 #endif /* DRAW_CONTEXT_H */