draw_context.h revision 102bf6e2a70f565f03d5e9c4995b29d61c0aa165 
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
44struct pipe_context;
45struct draw_context;
46struct draw_stage;
47struct draw_vertex_shader;
48struct draw_geometry_shader;
49struct draw_fragment_shader;
50struct tgsi_sampler;
51struct gallivm_state;
52
53
54
55struct draw_context *draw_create( struct pipe_context *pipe );
56
57struct draw_context *
58draw_create_gallivm(struct pipe_context *pipe, struct gallivm_state *gallivm);
59
60void draw_destroy( struct draw_context *draw );
61
62void draw_flush(struct draw_context *draw);
63
64void draw_set_viewport_state( struct draw_context *draw,
65                              const struct pipe_viewport_state *viewport );
66
67void draw_set_clip_state( struct draw_context *pipe,
68                          const struct pipe_clip_state *clip );
69
70void draw_set_rasterizer_state( struct draw_context *draw,
71                                const struct pipe_rasterizer_state *raster,
72                                void *rast_handle );
73
74void draw_set_rasterize_stage( struct draw_context *draw,
75                               struct draw_stage *stage );
76
77void draw_wide_point_threshold(struct draw_context *draw, float threshold);
78
79void draw_wide_point_sprites(struct draw_context *draw, boolean draw_sprite);
80
81void draw_wide_line_threshold(struct draw_context *draw, float threshold);
82
83void draw_enable_line_stipple(struct draw_context *draw, boolean enable);
84
85void draw_enable_point_sprites(struct draw_context *draw, boolean enable);
86
87void draw_set_mrd(struct draw_context *draw, double mrd);
88
89boolean
90draw_install_aaline_stage(struct draw_context *draw, struct pipe_context *pipe);
91
92boolean
93draw_install_aapoint_stage(struct draw_context *draw, struct pipe_context *pipe);
94
95boolean
96draw_install_pstipple_stage(struct draw_context *draw, struct pipe_context *pipe);
97
98
99struct tgsi_shader_info *
100draw_get_shader_info(const struct draw_context *draw);
101
102int
103draw_find_shader_output(const struct draw_context *draw,
104                        uint semantic_name, uint semantic_index);
105
106uint
107draw_num_shader_outputs(const struct draw_context *draw);
108
109
110void
111draw_texture_samplers(struct draw_context *draw,
112                      uint shader_type,
113                      uint num_samplers,
114                      struct tgsi_sampler **samplers);
115
116void
117draw_set_sampler_views(struct draw_context *draw,
118                       struct pipe_sampler_view **views,
119                       unsigned num);
120void
121draw_set_samplers(struct draw_context *draw,
122                  struct pipe_sampler_state **samplers,
123                  unsigned num);
124
125void
126draw_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
139struct draw_vertex_shader *
140draw_create_vertex_shader(struct draw_context *draw,
141                          const struct pipe_shader_state *shader);
142void draw_bind_vertex_shader(struct draw_context *draw,
143                             struct draw_vertex_shader *dvs);
144void draw_delete_vertex_shader(struct draw_context *draw,
145                               struct draw_vertex_shader *dvs);
146
147
148/*
149 * Fragment shader functions
150 */
151struct draw_fragment_shader *
152draw_create_fragment_shader(struct draw_context *draw,
153                            const struct pipe_shader_state *shader);
154void draw_bind_fragment_shader(struct draw_context *draw,
155                               struct draw_fragment_shader *dvs);
156void draw_delete_fragment_shader(struct draw_context *draw,
157                                 struct draw_fragment_shader *dvs);
158
159/*
160 * Geometry shader functions
161 */
162struct draw_geometry_shader *
163draw_create_geometry_shader(struct draw_context *draw,
164                            const struct pipe_shader_state *shader);
165void draw_bind_geometry_shader(struct draw_context *draw,
166                               struct draw_geometry_shader *dvs);
167void draw_delete_geometry_shader(struct draw_context *draw,
168                                 struct draw_geometry_shader *dvs);
169
170
171/*
172 * Vertex data functions
173 */
174
175void draw_set_vertex_buffers(struct draw_context *draw,
176                             unsigned count,
177                             const struct pipe_vertex_buffer *buffers);
178
179void draw_set_vertex_elements(struct draw_context *draw,
180			      unsigned count,
181                              const struct pipe_vertex_element *elements);
182
183void draw_set_index_buffer(struct draw_context *draw,
184                           const struct pipe_index_buffer *ib);
185
186void draw_set_mapped_index_buffer(struct draw_context *draw,
187                                  const void *elements);
188
189void draw_set_mapped_vertex_buffer(struct draw_context *draw,
190                                   unsigned attr, const void *buffer);
191
192void
193draw_set_mapped_constant_buffer(struct draw_context *draw,
194                                unsigned shader_type,
195                                unsigned slot,
196                                const void *buffer,
197                                unsigned size);
198
199void
200draw_set_mapped_so_buffers(struct draw_context *draw,
201                           void *buffers[PIPE_MAX_SO_BUFFERS],
202                           unsigned num_buffers);
203void
204draw_set_so_state(struct draw_context *draw,
205                  struct pipe_stream_output_state *state);
206
207
208/***********************************************************************
209 * draw_pt.c
210 */
211
212void draw_vbo(struct draw_context *draw,
213              const struct pipe_draw_info *info);
214
215void draw_arrays(struct draw_context *draw, unsigned prim,
216		 unsigned start, unsigned count);
217
218void
219draw_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 */
230struct vbuf_render;
231void draw_set_render( struct draw_context *draw,
232		      struct vbuf_render *render );
233
234void draw_set_driver_clipping( struct draw_context *draw,
235                               boolean bypass_clip_xy,
236                               boolean bypass_clip_z,
237                               boolean guard_band_xy);
238
239void draw_set_force_passthrough( struct draw_context *draw,
240                                 boolean enable );
241
242/*******************************************************************************
243 * Draw pipeline
244 */
245boolean draw_need_pipeline(const struct draw_context *draw,
246                           const struct pipe_rasterizer_state *rasterizer,
247                           unsigned prim );
248
249static INLINE int
250draw_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 */
262