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