2 /**************************************************************************
4 * Copyright 2007 VMware, Inc.
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 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.
27 **************************************************************************/
30 * \brief Public interface into the drawing module.
33 /* Authors: Keith Whitwell <keithw@vmware.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
;
55 * structure to contain driver internal information
56 * for stream out support. mapping stores the pointer
57 * to the buffer contents, and internal offset stores
58 * an internal counter to how much of the stream
59 * out buffer is used (in bytes).
61 struct draw_so_target
{
62 struct pipe_stream_output_target target
;
67 struct draw_context
*draw_create( struct pipe_context
*pipe
);
70 struct draw_context
*draw_create_with_llvm_context(struct pipe_context
*pipe
,
74 struct draw_context
*draw_create_no_llvm(struct pipe_context
*pipe
);
76 void draw_destroy( struct draw_context
*draw
);
78 void draw_flush(struct draw_context
*draw
);
80 void draw_set_viewport_states( struct draw_context
*draw
,
82 unsigned num_viewports
,
83 const struct pipe_viewport_state
*viewports
);
85 void draw_set_clip_state( struct draw_context
*pipe
,
86 const struct pipe_clip_state
*clip
);
89 * Sets the rasterization state used by the draw module.
90 * The rast_handle is used to pass the driver specific representation
91 * of the rasterization state. It's going to be used when the
92 * draw module sets the state back on the driver itself using the
93 * pipe::bind_rasterizer_state method.
95 * NOTE: if you're calling this function from within the pipe's
96 * bind_rasterizer_state you should always call it before binding
97 * the actual state - that's because the draw module can try to
98 * bind its own rasterizer state which would reset your newly
99 * set state. i.e. always do
100 * draw_set_rasterizer_state(driver->draw, state->pipe_state, state);
101 * driver->state.raster = state;
103 void draw_set_rasterizer_state( struct draw_context
*draw
,
104 const struct pipe_rasterizer_state
*raster
,
107 void draw_set_rasterize_stage( struct draw_context
*draw
,
108 struct draw_stage
*stage
);
110 void draw_wide_point_threshold(struct draw_context
*draw
, float threshold
);
112 void draw_wide_point_sprites(struct draw_context
*draw
, boolean draw_sprite
);
114 void draw_wide_line_threshold(struct draw_context
*draw
, float threshold
);
116 void draw_enable_line_stipple(struct draw_context
*draw
, boolean enable
);
118 void draw_enable_point_sprites(struct draw_context
*draw
, boolean enable
);
120 void draw_set_zs_format(struct draw_context
*draw
, enum pipe_format format
);
123 draw_install_aaline_stage(struct draw_context
*draw
, struct pipe_context
*pipe
);
126 draw_install_aapoint_stage(struct draw_context
*draw
, struct pipe_context
*pipe
);
129 draw_install_pstipple_stage(struct draw_context
*draw
, struct pipe_context
*pipe
);
132 struct tgsi_shader_info
*
133 draw_get_shader_info(const struct draw_context
*draw
);
136 draw_prepare_shader_outputs(struct draw_context
*draw
);
139 draw_find_shader_output(const struct draw_context
*draw
,
140 uint semantic_name
, uint semantic_index
);
143 draw_will_inject_frontface(const struct draw_context
*draw
);
146 draw_num_shader_outputs(const struct draw_context
*draw
);
149 draw_total_vs_outputs(const struct draw_context
*draw
);
152 draw_total_gs_outputs(const struct draw_context
*draw
);
155 draw_texture_sampler(struct draw_context
*draw
,
157 struct tgsi_sampler
*sampler
);
160 draw_image(struct draw_context
*draw
,
162 struct tgsi_image
*image
);
165 draw_buffer(struct draw_context
*draw
,
167 struct tgsi_buffer
*buffer
);
170 draw_set_sampler_views(struct draw_context
*draw
,
171 unsigned shader_stage
,
172 struct pipe_sampler_view
**views
,
175 draw_set_samplers(struct draw_context
*draw
,
176 unsigned shader_stage
,
177 struct pipe_sampler_state
**samplers
,
181 draw_set_mapped_texture(struct draw_context
*draw
,
182 unsigned shader_stage
,
184 uint32_t width
, uint32_t height
, uint32_t depth
,
185 uint32_t first_level
, uint32_t last_level
,
187 uint32_t row_stride
[PIPE_MAX_TEXTURE_LEVELS
],
188 uint32_t img_stride
[PIPE_MAX_TEXTURE_LEVELS
],
189 uint32_t mip_offsets
[PIPE_MAX_TEXTURE_LEVELS
]);
193 * Vertex shader functions
196 struct draw_vertex_shader
*
197 draw_create_vertex_shader(struct draw_context
*draw
,
198 const struct pipe_shader_state
*shader
);
199 void draw_bind_vertex_shader(struct draw_context
*draw
,
200 struct draw_vertex_shader
*dvs
);
201 void draw_delete_vertex_shader(struct draw_context
*draw
,
202 struct draw_vertex_shader
*dvs
);
203 void draw_vs_attach_so(struct draw_vertex_shader
*dvs
,
204 const struct pipe_stream_output_info
*info
);
205 void draw_vs_reset_so(struct draw_vertex_shader
*dvs
);
209 * Fragment shader functions
211 struct draw_fragment_shader
*
212 draw_create_fragment_shader(struct draw_context
*draw
,
213 const struct pipe_shader_state
*shader
);
214 void draw_bind_fragment_shader(struct draw_context
*draw
,
215 struct draw_fragment_shader
*dvs
);
216 void draw_delete_fragment_shader(struct draw_context
*draw
,
217 struct draw_fragment_shader
*dvs
);
220 * Geometry shader functions
222 struct draw_geometry_shader
*
223 draw_create_geometry_shader(struct draw_context
*draw
,
224 const struct pipe_shader_state
*shader
);
225 void draw_bind_geometry_shader(struct draw_context
*draw
,
226 struct draw_geometry_shader
*dvs
);
227 void draw_delete_geometry_shader(struct draw_context
*draw
,
228 struct draw_geometry_shader
*dvs
);
232 * Vertex data functions
235 void draw_set_vertex_buffers(struct draw_context
*draw
,
236 unsigned start_slot
, unsigned count
,
237 const struct pipe_vertex_buffer
*buffers
);
239 void draw_set_vertex_elements(struct draw_context
*draw
,
241 const struct pipe_vertex_element
*elements
);
243 void draw_set_indexes(struct draw_context
*draw
,
244 const void *elements
, unsigned elem_size
,
245 unsigned available_space
);
247 void draw_set_mapped_vertex_buffer(struct draw_context
*draw
,
248 unsigned attr
, const void *buffer
,
252 draw_set_mapped_constant_buffer(struct draw_context
*draw
,
253 unsigned shader_type
,
259 draw_set_mapped_so_targets(struct draw_context
*draw
,
261 struct draw_so_target
*targets
[PIPE_MAX_SO_BUFFERS
]);
264 /***********************************************************************
268 void draw_vbo(struct draw_context
*draw
,
269 const struct pipe_draw_info
*info
);
272 /*******************************************************************************
273 * Driver backend interface
276 void draw_set_render( struct draw_context
*draw
,
277 struct vbuf_render
*render
);
279 void draw_set_driver_clipping( struct draw_context
*draw
,
280 boolean bypass_clip_xy
,
281 boolean bypass_clip_z
,
282 boolean guard_band_xy
,
283 boolean bypass_clip_points
);
285 void draw_set_force_passthrough( struct draw_context
*draw
,
289 /*******************************************************************************
292 void draw_collect_pipeline_statistics(struct draw_context
*draw
,
295 /*******************************************************************************
298 boolean
draw_need_pipeline(const struct draw_context
*draw
,
299 const struct pipe_rasterizer_state
*rasterizer
,
303 draw_get_shader_param(unsigned shader
, enum pipe_shader_cap param
);
306 draw_get_shader_param_no_llvm(unsigned shader
, enum pipe_shader_cap param
);
309 draw_get_option_use_llvm(void);
311 #endif /* DRAW_CONTEXT_H */