draw_context.h revision 4f024e0f642f4f743e4d051ec71c00e45bfd361f 
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
43struct pipe_context;
44struct draw_context;
45struct draw_stage;
46struct draw_vertex_shader;
47struct draw_geometry_shader;
48struct tgsi_sampler;
49
50#define DRAW_MAX_TEXTURE_LEVELS 13  /* 4K x 4K for now */
51
52struct draw_context *draw_create( struct pipe_context *pipe );
53
54void draw_destroy( struct draw_context *draw );
55
56void draw_flush(struct draw_context *draw);
57
58void draw_set_viewport_state( struct draw_context *draw,
59                              const struct pipe_viewport_state *viewport );
60
61void draw_set_clip_state( struct draw_context *pipe,
62                          const struct pipe_clip_state *clip );
63
64void draw_set_rasterizer_state( struct draw_context *draw,
65                                const struct pipe_rasterizer_state *raster,
66                                void *rast_handle );
67
68void draw_set_rasterize_stage( struct draw_context *draw,
69                               struct draw_stage *stage );
70
71void draw_wide_point_threshold(struct draw_context *draw, float threshold);
72
73void draw_wide_point_sprites(struct draw_context *draw, boolean draw_sprite);
74
75void draw_wide_line_threshold(struct draw_context *draw, float threshold);
76
77void draw_enable_line_stipple(struct draw_context *draw, boolean enable);
78
79void draw_enable_point_sprites(struct draw_context *draw, boolean enable);
80
81void draw_set_mrd(struct draw_context *draw, double mrd);
82
83boolean
84draw_install_aaline_stage(struct draw_context *draw, struct pipe_context *pipe);
85
86boolean
87draw_install_aapoint_stage(struct draw_context *draw, struct pipe_context *pipe);
88
89boolean
90draw_install_pstipple_stage(struct draw_context *draw, struct pipe_context *pipe);
91
92
93int
94draw_find_shader_output(const struct draw_context *draw,
95                        uint semantic_name, uint semantic_index);
96
97uint
98draw_num_shader_outputs(const struct draw_context *draw);
99
100
101void
102draw_texture_samplers(struct draw_context *draw,
103                      uint shader_type,
104                      uint num_samplers,
105                      struct tgsi_sampler **samplers);
106
107void
108draw_set_sampler_views(struct draw_context *draw,
109                       struct pipe_sampler_view **views,
110                       unsigned num);
111void
112draw_set_samplers(struct draw_context *draw,
113                  struct pipe_sampler_state **samplers,
114                  unsigned num);
115
116void
117draw_set_mapped_texture(struct draw_context *draw,
118                        unsigned sampler_idx,
119                        uint32_t width, uint32_t height, uint32_t depth,
120                        uint32_t last_level,
121                        uint32_t row_stride[DRAW_MAX_TEXTURE_LEVELS],
122                        uint32_t img_stride[DRAW_MAX_TEXTURE_LEVELS],
123                        const void *data[DRAW_MAX_TEXTURE_LEVELS]);
124
125
126/*
127 * Vertex shader functions
128 */
129
130struct draw_vertex_shader *
131draw_create_vertex_shader(struct draw_context *draw,
132                          const struct pipe_shader_state *shader);
133void draw_bind_vertex_shader(struct draw_context *draw,
134                             struct draw_vertex_shader *dvs);
135void draw_delete_vertex_shader(struct draw_context *draw,
136                               struct draw_vertex_shader *dvs);
137
138
139/*
140 * Geometry shader functions
141 */
142struct draw_geometry_shader *
143draw_create_geometry_shader(struct draw_context *draw,
144                            const struct pipe_shader_state *shader);
145void draw_bind_geometry_shader(struct draw_context *draw,
146                               struct draw_geometry_shader *dvs);
147void draw_delete_geometry_shader(struct draw_context *draw,
148                                 struct draw_geometry_shader *dvs);
149
150
151/*
152 * Vertex data functions
153 */
154
155void draw_set_vertex_buffers(struct draw_context *draw,
156                             unsigned count,
157                             const struct pipe_vertex_buffer *buffers);
158
159void draw_set_vertex_elements(struct draw_context *draw,
160			      unsigned count,
161                              const struct pipe_vertex_element *elements);
162
163void draw_set_index_buffer(struct draw_context *draw,
164                           const struct pipe_index_buffer *ib);
165
166void draw_set_mapped_index_buffer(struct draw_context *draw,
167                                  const void *elements);
168
169void
170draw_set_mapped_element_buffer_range( struct draw_context *draw,
171                                      unsigned eltSize,
172                                      int eltBias,
173                                      unsigned min_index,
174                                      unsigned max_index,
175                                      const void *elements );
176
177void draw_set_mapped_element_buffer( struct draw_context *draw,
178                                     unsigned eltSize,
179                                     int eltBias,
180                                     const void *elements );
181
182void draw_set_mapped_vertex_buffer(struct draw_context *draw,
183                                   unsigned attr, const void *buffer);
184
185void
186draw_set_mapped_constant_buffer(struct draw_context *draw,
187                                unsigned shader_type,
188                                unsigned slot,
189                                const void *buffer,
190                                unsigned size);
191
192void
193draw_set_mapped_so_buffers(struct draw_context *draw,
194                           void *buffers[PIPE_MAX_SO_BUFFERS],
195                           unsigned num_buffers);
196void
197draw_set_so_state(struct draw_context *draw,
198                  struct pipe_stream_output_state *state);
199
200
201/***********************************************************************
202 * draw_pt.c
203 */
204
205void draw_vbo(struct draw_context *draw,
206              const struct pipe_draw_info *info);
207
208void draw_arrays(struct draw_context *draw, unsigned prim,
209		 unsigned start, unsigned count);
210
211void
212draw_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 */
223struct vbuf_render;
224void draw_set_render( struct draw_context *draw,
225		      struct vbuf_render *render );
226
227void draw_set_driver_clipping( struct draw_context *draw,
228                               boolean bypass_clipping );
229
230void draw_set_force_passthrough( struct draw_context *draw,
231                                 boolean enable );
232
233/*******************************************************************************
234 * Draw pipeline
235 */
236boolean draw_need_pipeline(const struct draw_context *draw,
237                           const struct pipe_rasterizer_state *rasterizer,
238                           unsigned prim );
239
240#endif /* DRAW_CONTEXT_H */
241