2 /**************************************************************************
4 * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
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:
15 * The above copyright notice and this permission notice (including the
16 * next paragraph) shall be included in all copies or substantial portions
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.
27 **************************************************************************/
30 * \brief Public interface into the drawing module.
33 /* Authors: Keith Whitwell <keith@tungstengraphics.com>
37 #ifndef DRAW_CONTEXT_H
38 #define DRAW_CONTEXT_H
41 #include "pipe/p_state.h"
42 #include "tgsi/tgsi_exec.h"
47 struct draw_vertex_shader;
48 struct draw_geometry_shader;
49 struct draw_fragment_shader;
53 * structure to contain driver internal information
54 * for stream out support. mapping stores the pointer
55 * to the buffer contents, and internal offset stores
56 * stores an internal counter to how much of the stream
57 * out buffer is used (in bytes).
59 struct draw_so_target {
60 struct pipe_stream_output_target target;
66 struct draw_context *draw_create( struct pipe_context *pipe );
68 struct draw_context *draw_create_no_llvm(struct pipe_context *pipe);
70 void draw_destroy( struct draw_context *draw );
72 void draw_flush(struct draw_context *draw);
74 void draw_set_viewport_state( struct draw_context *draw,
75 const struct pipe_viewport_state *viewport );
77 void draw_set_clip_state( struct draw_context *pipe,
78 const struct pipe_clip_state *clip );
81 * Sets the rasterization state used by the draw module.
82 * The rast_handle is used to pass the driver specific representation
83 * of the rasterization state. It's going to be used when the
84 * draw module sets the state back on the driver itself using the
85 * pipe::bind_rasterizer_state method.
87 * NOTE: if you're calling this function from within the pipe's
88 * bind_rasterizer_state you should always call it before binding
89 * the actual state - that's because the draw module can try to
90 * bind its own rasterizer state which would reset your newly
91 * set state. i.e. always do
92 * draw_set_rasterizer_state(driver->draw, state->pipe_state, state);
93 * driver->state.raster = state;
95 void draw_set_rasterizer_state( struct draw_context *draw,
96 const struct pipe_rasterizer_state *raster,
99 void draw_set_rasterize_stage( struct draw_context *draw,
100 struct draw_stage *stage );
102 void draw_wide_point_threshold(struct draw_context *draw, float threshold);
104 void draw_wide_point_sprites(struct draw_context *draw, boolean draw_sprite);
106 void draw_wide_line_threshold(struct draw_context *draw, float threshold);
108 void draw_enable_line_stipple(struct draw_context *draw, boolean enable);
110 void draw_enable_point_sprites(struct draw_context *draw, boolean enable);
112 void draw_set_mrd(struct draw_context *draw, double mrd);
115 draw_install_aaline_stage(struct draw_context *draw, struct pipe_context *pipe);
118 draw_install_aapoint_stage(struct draw_context *draw, struct pipe_context *pipe);
121 draw_install_pstipple_stage(struct draw_context *draw, struct pipe_context *pipe);
124 struct tgsi_shader_info *
125 draw_get_shader_info(const struct draw_context *draw);
128 draw_find_shader_output(const struct draw_context *draw,
129 uint semantic_name, uint semantic_index);
132 draw_num_shader_outputs(const struct draw_context *draw);
136 draw_texture_sampler(struct draw_context *draw,
138 struct tgsi_sampler *sampler);
141 draw_set_sampler_views(struct draw_context *draw,
142 unsigned shader_stage,
143 struct pipe_sampler_view **views,
146 draw_set_samplers(struct draw_context *draw,
147 unsigned shader_stage,
148 struct pipe_sampler_state **samplers,
152 draw_set_mapped_texture(struct draw_context *draw,
153 unsigned shader_stage,
155 uint32_t width, uint32_t height, uint32_t depth,
156 uint32_t first_level, uint32_t last_level,
158 uint32_t row_stride[PIPE_MAX_TEXTURE_LEVELS],
159 uint32_t img_stride[PIPE_MAX_TEXTURE_LEVELS],
160 uint32_t mip_offsets[PIPE_MAX_TEXTURE_LEVELS]);
164 * Vertex shader functions
167 struct draw_vertex_shader *
168 draw_create_vertex_shader(struct draw_context *draw,
169 const struct pipe_shader_state *shader);
170 void draw_bind_vertex_shader(struct draw_context *draw,
171 struct draw_vertex_shader *dvs);
172 void draw_delete_vertex_shader(struct draw_context *draw,
173 struct draw_vertex_shader *dvs);
174 void draw_vs_attach_so(struct draw_vertex_shader *dvs,
175 const struct pipe_stream_output_info *info);
176 void draw_vs_reset_so(struct draw_vertex_shader *dvs);
180 * Fragment shader functions
182 struct draw_fragment_shader *
183 draw_create_fragment_shader(struct draw_context *draw,
184 const struct pipe_shader_state *shader);
185 void draw_bind_fragment_shader(struct draw_context *draw,
186 struct draw_fragment_shader *dvs);
187 void draw_delete_fragment_shader(struct draw_context *draw,
188 struct draw_fragment_shader *dvs);
191 * Geometry shader functions
193 struct draw_geometry_shader *
194 draw_create_geometry_shader(struct draw_context *draw,
195 const struct pipe_shader_state *shader);
196 void draw_bind_geometry_shader(struct draw_context *draw,
197 struct draw_geometry_shader *dvs);
198 void draw_delete_geometry_shader(struct draw_context *draw,
199 struct draw_geometry_shader *dvs);
203 * Vertex data functions
206 void draw_set_vertex_buffers(struct draw_context *draw,
207 unsigned start_slot, unsigned count,
208 const struct pipe_vertex_buffer *buffers);
210 void draw_set_vertex_elements(struct draw_context *draw,
212 const struct pipe_vertex_element *elements);
214 void draw_set_indexes(struct draw_context *draw,
215 const void *elements, unsigned elem_size);
217 void draw_set_mapped_vertex_buffer(struct draw_context *draw,
218 unsigned attr, const void *buffer,
222 draw_set_mapped_constant_buffer(struct draw_context *draw,
223 unsigned shader_type,
229 draw_set_mapped_so_targets(struct draw_context *draw,
231 struct draw_so_target *targets[PIPE_MAX_SO_BUFFERS]);
234 /***********************************************************************
238 void draw_vbo(struct draw_context *draw,
239 const struct pipe_draw_info *info);
241 void draw_arrays(struct draw_context *draw, unsigned prim,
242 unsigned start, unsigned count);
245 draw_arrays_instanced(struct draw_context *draw,
249 unsigned startInstance,
250 unsigned instanceCount);
253 /*******************************************************************************
254 * Driver backend interface
257 void draw_set_render( struct draw_context *draw,
258 struct vbuf_render *render );
260 void draw_set_driver_clipping( struct draw_context *draw,
261 boolean bypass_clip_xy,
262 boolean bypass_clip_z,
263 boolean guard_band_xy);
265 void draw_set_force_passthrough( struct draw_context *draw,
269 /*******************************************************************************
272 void draw_collect_pipeline_statistics(struct draw_context *draw,
275 /*******************************************************************************
278 boolean draw_need_pipeline(const struct draw_context *draw,
279 const struct pipe_rasterizer_state *rasterizer,
283 draw_get_shader_param(unsigned shader, enum pipe_shader_cap param);
286 draw_get_shader_param_no_llvm(unsigned shader, enum pipe_shader_cap param);
290 draw_get_option_use_llvm(void);
293 #endif /* DRAW_CONTEXT_H */