1
2/**************************************************************************
3 *
4 * Copyright 2007 VMware, Inc.
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 VMWARE 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 <keithw@vmware.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 draw_fragment_shader;
49struct tgsi_sampler;
50struct tgsi_image;
51struct tgsi_buffer;
52
53/*
54 * structure to contain driver internal information
55 * for stream out support. mapping stores the pointer
56 * to the buffer contents, and internal offset stores
57 * an internal counter to how much of the stream
58 * out buffer is used (in bytes).
59 */
60struct draw_so_target {
61   struct pipe_stream_output_target target;
62   void *mapping;
63   int internal_offset;
64};
65
66struct draw_context *draw_create( struct pipe_context *pipe );
67
68#if HAVE_LLVM
69struct draw_context *draw_create_with_llvm_context(struct pipe_context *pipe,
70                                                   void *context);
71#endif
72
73struct draw_context *draw_create_no_llvm(struct pipe_context *pipe);
74
75void draw_destroy( struct draw_context *draw );
76
77void draw_flush(struct draw_context *draw);
78
79void draw_set_viewport_states( struct draw_context *draw,
80                               unsigned start_slot,
81                               unsigned num_viewports,
82                               const struct pipe_viewport_state *viewports );
83
84void draw_set_clip_state( struct draw_context *pipe,
85                          const struct pipe_clip_state *clip );
86
87/**
88 * Sets the rasterization state used by the draw module.
89 * The rast_handle is used to pass the driver specific representation
90 * of the rasterization state. It's going to be used when the
91 * draw module sets the state back on the driver itself using the
92 * pipe::bind_rasterizer_state method.
93 *
94 * NOTE: if you're calling this function from within the pipe's
95 * bind_rasterizer_state you should always call it before binding
96 * the actual state - that's because the draw module can try to
97 * bind its own rasterizer state which would reset your newly
98 * set state. i.e. always do
99 * draw_set_rasterizer_state(driver->draw, state->pipe_state, state);
100 * driver->state.raster = state;
101 */
102void draw_set_rasterizer_state( struct draw_context *draw,
103                                const struct pipe_rasterizer_state *raster,
104                                void *rast_handle );
105
106void draw_set_rasterize_stage( struct draw_context *draw,
107                               struct draw_stage *stage );
108
109void draw_wide_point_threshold(struct draw_context *draw, float threshold);
110
111void draw_wide_point_sprites(struct draw_context *draw, boolean draw_sprite);
112
113void draw_wide_line_threshold(struct draw_context *draw, float threshold);
114
115void draw_enable_line_stipple(struct draw_context *draw, boolean enable);
116
117void draw_enable_point_sprites(struct draw_context *draw, boolean enable);
118
119void draw_set_zs_format(struct draw_context *draw, enum pipe_format format);
120
121boolean
122draw_install_aaline_stage(struct draw_context *draw, struct pipe_context *pipe);
123
124boolean
125draw_install_aapoint_stage(struct draw_context *draw, struct pipe_context *pipe);
126
127boolean
128draw_install_pstipple_stage(struct draw_context *draw, struct pipe_context *pipe);
129
130
131struct tgsi_shader_info *
132draw_get_shader_info(const struct draw_context *draw);
133
134void
135draw_prepare_shader_outputs(struct draw_context *draw);
136
137int
138draw_find_shader_output(const struct draw_context *draw,
139                        uint semantic_name, uint semantic_index);
140
141boolean
142draw_will_inject_frontface(const struct draw_context *draw);
143
144uint
145draw_num_shader_outputs(const struct draw_context *draw);
146
147uint
148draw_total_vs_outputs(const struct draw_context *draw);
149
150uint
151draw_total_gs_outputs(const struct draw_context *draw);
152
153void
154draw_texture_sampler(struct draw_context *draw,
155                     uint shader_type,
156                     struct tgsi_sampler *sampler);
157
158void
159draw_image(struct draw_context *draw,
160           uint shader_type,
161           struct tgsi_image *image);
162
163void
164draw_buffer(struct draw_context *draw,
165           uint shader_type,
166           struct tgsi_buffer *buffer);
167
168void
169draw_set_sampler_views(struct draw_context *draw,
170                       enum pipe_shader_type shader_stage,
171                       struct pipe_sampler_view **views,
172                       unsigned num);
173void
174draw_set_samplers(struct draw_context *draw,
175                  enum pipe_shader_type shader_stage,
176                  struct pipe_sampler_state **samplers,
177                  unsigned num);
178
179void
180draw_set_mapped_texture(struct draw_context *draw,
181                        unsigned shader_stage,
182                        unsigned sview_idx,
183                        uint32_t width, uint32_t height, uint32_t depth,
184                        uint32_t first_level, uint32_t last_level,
185                        const void *base,
186                        uint32_t row_stride[PIPE_MAX_TEXTURE_LEVELS],
187                        uint32_t img_stride[PIPE_MAX_TEXTURE_LEVELS],
188                        uint32_t mip_offsets[PIPE_MAX_TEXTURE_LEVELS]);
189
190
191/*
192 * Vertex shader functions
193 */
194
195struct draw_vertex_shader *
196draw_create_vertex_shader(struct draw_context *draw,
197                          const struct pipe_shader_state *shader);
198void draw_bind_vertex_shader(struct draw_context *draw,
199                             struct draw_vertex_shader *dvs);
200void draw_delete_vertex_shader(struct draw_context *draw,
201                               struct draw_vertex_shader *dvs);
202void draw_vs_attach_so(struct draw_vertex_shader *dvs,
203                       const struct pipe_stream_output_info *info);
204void draw_vs_reset_so(struct draw_vertex_shader *dvs);
205
206
207/*
208 * Fragment shader functions
209 */
210struct draw_fragment_shader *
211draw_create_fragment_shader(struct draw_context *draw,
212                            const struct pipe_shader_state *shader);
213void draw_bind_fragment_shader(struct draw_context *draw,
214                               struct draw_fragment_shader *dvs);
215void draw_delete_fragment_shader(struct draw_context *draw,
216                                 struct draw_fragment_shader *dvs);
217
218/*
219 * Geometry shader functions
220 */
221struct draw_geometry_shader *
222draw_create_geometry_shader(struct draw_context *draw,
223                            const struct pipe_shader_state *shader);
224void draw_bind_geometry_shader(struct draw_context *draw,
225                               struct draw_geometry_shader *dvs);
226void draw_delete_geometry_shader(struct draw_context *draw,
227                                 struct draw_geometry_shader *dvs);
228
229
230/*
231 * Vertex data functions
232 */
233
234void draw_set_vertex_buffers(struct draw_context *draw,
235                             unsigned start_slot, unsigned count,
236                             const struct pipe_vertex_buffer *buffers);
237
238void draw_set_vertex_elements(struct draw_context *draw,
239			      unsigned count,
240                              const struct pipe_vertex_element *elements);
241
242void draw_set_indexes(struct draw_context *draw,
243                      const void *elements, unsigned elem_size,
244                      unsigned available_space);
245
246void draw_set_mapped_vertex_buffer(struct draw_context *draw,
247                                   unsigned attr, const void *buffer,
248                                   size_t size);
249
250void
251draw_set_mapped_constant_buffer(struct draw_context *draw,
252                                unsigned shader_type,
253                                unsigned slot,
254                                const void *buffer,
255                                unsigned size);
256
257void
258draw_set_mapped_so_targets(struct draw_context *draw,
259                           int num_targets,
260                           struct draw_so_target *targets[PIPE_MAX_SO_BUFFERS]);
261
262
263/***********************************************************************
264 * draw_pt.c
265 */
266
267void draw_vbo(struct draw_context *draw,
268              const struct pipe_draw_info *info);
269
270
271/*******************************************************************************
272 * Driver backend interface
273 */
274struct vbuf_render;
275void draw_set_render( struct draw_context *draw,
276		      struct vbuf_render *render );
277
278void draw_set_driver_clipping( struct draw_context *draw,
279                               boolean bypass_clip_xy,
280                               boolean bypass_clip_z,
281                               boolean guard_band_xy,
282                               boolean bypass_clip_points);
283
284void draw_set_force_passthrough( struct draw_context *draw,
285                                 boolean enable );
286
287
288/*******************************************************************************
289 * Draw statistics
290 */
291void draw_collect_pipeline_statistics(struct draw_context *draw,
292                                      boolean enable);
293
294/*******************************************************************************
295 * Draw pipeline
296 */
297boolean draw_need_pipeline(const struct draw_context *draw,
298                           const struct pipe_rasterizer_state *rasterizer,
299                           unsigned prim );
300
301int
302draw_get_shader_param(unsigned shader, enum pipe_shader_cap param);
303
304int
305draw_get_shader_param_no_llvm(unsigned shader, enum pipe_shader_cap param);
306
307boolean
308draw_get_option_use_llvm(void);
309
310#endif /* DRAW_CONTEXT_H */
311