draw_context.h revision efc82aef35a2aac5d2ed9774f6d28f2626796416 
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
99int
100draw_find_shader_output(const struct draw_context *draw,
101                        uint semantic_name, uint semantic_index);
102
103uint
104draw_num_shader_outputs(const struct draw_context *draw);
105
106
107void
108draw_texture_samplers(struct draw_context *draw,
109                      uint shader_type,
110                      uint num_samplers,
111                      struct tgsi_sampler **samplers);
112
113void
114draw_set_sampler_views(struct draw_context *draw,
115                       struct pipe_sampler_view **views,
116                       unsigned num);
117void
118draw_set_samplers(struct draw_context *draw,
119                  struct pipe_sampler_state **samplers,
120                  unsigned num);
121
122void
123draw_set_mapped_texture(struct draw_context *draw,
124                        unsigned sampler_idx,
125                        uint32_t width, uint32_t height, uint32_t depth,
126                        uint32_t last_level,
127                        uint32_t row_stride[PIPE_MAX_TEXTURE_LEVELS],
128                        uint32_t img_stride[PIPE_MAX_TEXTURE_LEVELS],
129                        const void *data[PIPE_MAX_TEXTURE_LEVELS]);
130
131
132/*
133 * Vertex shader functions
134 */
135
136struct draw_vertex_shader *
137draw_create_vertex_shader(struct draw_context *draw,
138                          const struct pipe_shader_state *shader);
139void draw_bind_vertex_shader(struct draw_context *draw,
140                             struct draw_vertex_shader *dvs);
141void draw_delete_vertex_shader(struct draw_context *draw,
142                               struct draw_vertex_shader *dvs);
143
144
145/*
146 * Fragment shader functions
147 */
148struct draw_fragment_shader *
149draw_create_fragment_shader(struct draw_context *draw,
150                            const struct pipe_shader_state *shader);
151void draw_bind_fragment_shader(struct draw_context *draw,
152                               struct draw_fragment_shader *dvs);
153void draw_delete_fragment_shader(struct draw_context *draw,
154                                 struct draw_fragment_shader *dvs);
155
156/*
157 * Geometry shader functions
158 */
159struct draw_geometry_shader *
160draw_create_geometry_shader(struct draw_context *draw,
161                            const struct pipe_shader_state *shader);
162void draw_bind_geometry_shader(struct draw_context *draw,
163                               struct draw_geometry_shader *dvs);
164void draw_delete_geometry_shader(struct draw_context *draw,
165                                 struct draw_geometry_shader *dvs);
166
167
168/*
169 * Vertex data functions
170 */
171
172void draw_set_vertex_buffers(struct draw_context *draw,
173                             unsigned count,
174                             const struct pipe_vertex_buffer *buffers);
175
176void draw_set_vertex_elements(struct draw_context *draw,
177			      unsigned count,
178                              const struct pipe_vertex_element *elements);
179
180void draw_set_index_buffer(struct draw_context *draw,
181                           const struct pipe_index_buffer *ib);
182
183void draw_set_mapped_index_buffer(struct draw_context *draw,
184                                  const void *elements);
185
186void draw_set_mapped_vertex_buffer(struct draw_context *draw,
187                                   unsigned attr, const void *buffer);
188
189void
190draw_set_mapped_constant_buffer(struct draw_context *draw,
191                                unsigned shader_type,
192                                unsigned slot,
193                                const void *buffer,
194                                unsigned size);
195
196void
197draw_set_mapped_so_buffers(struct draw_context *draw,
198                           void *buffers[PIPE_MAX_SO_BUFFERS],
199                           unsigned num_buffers);
200void
201draw_set_so_state(struct draw_context *draw,
202                  struct pipe_stream_output_state *state);
203
204
205/***********************************************************************
206 * draw_pt.c
207 */
208
209void draw_vbo(struct draw_context *draw,
210              const struct pipe_draw_info *info);
211
212void draw_arrays(struct draw_context *draw, unsigned prim,
213		 unsigned start, unsigned count);
214
215void
216draw_arrays_instanced(struct draw_context *draw,
217                      unsigned mode,
218                      unsigned start,
219                      unsigned count,
220                      unsigned startInstance,
221                      unsigned instanceCount);
222
223
224/*******************************************************************************
225 * Driver backend interface
226 */
227struct vbuf_render;
228void draw_set_render( struct draw_context *draw,
229		      struct vbuf_render *render );
230
231void draw_set_driver_clipping( struct draw_context *draw,
232                               boolean bypass_clip_xy,
233                               boolean bypass_clip_z );
234
235void draw_set_force_passthrough( struct draw_context *draw,
236                                 boolean enable );
237
238/*******************************************************************************
239 * Draw pipeline
240 */
241boolean draw_need_pipeline(const struct draw_context *draw,
242                           const struct pipe_rasterizer_state *rasterizer,
243                           unsigned prim );
244
245static INLINE int
246draw_get_shader_param(unsigned shader, enum pipe_cap param)
247{
248   switch(shader) {
249   case PIPE_SHADER_VERTEX:
250   case PIPE_SHADER_GEOMETRY:
251      return tgsi_exec_get_shader_param(param);
252   default:
253      return 0;
254   }
255}
256
257#endif /* DRAW_CONTEXT_H */
258