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_states( struct draw_context
*draw
,
76 unsigned num_viewports
,
77 const struct pipe_viewport_state
*viewports
);
79 void draw_set_clip_state( struct draw_context
*pipe
,
80 const struct pipe_clip_state
*clip
);
83 * Sets the rasterization state used by the draw module.
84 * The rast_handle is used to pass the driver specific representation
85 * of the rasterization state. It's going to be used when the
86 * draw module sets the state back on the driver itself using the
87 * pipe::bind_rasterizer_state method.
89 * NOTE: if you're calling this function from within the pipe's
90 * bind_rasterizer_state you should always call it before binding
91 * the actual state - that's because the draw module can try to
92 * bind its own rasterizer state which would reset your newly
93 * set state. i.e. always do
94 * draw_set_rasterizer_state(driver->draw, state->pipe_state, state);
95 * driver->state.raster = state;
97 void draw_set_rasterizer_state( struct draw_context
*draw
,
98 const struct pipe_rasterizer_state
*raster
,
101 void draw_set_rasterize_stage( struct draw_context
*draw
,
102 struct draw_stage
*stage
);
104 void draw_wide_point_threshold(struct draw_context
*draw
, float threshold
);
106 void draw_wide_point_sprites(struct draw_context
*draw
, boolean draw_sprite
);
108 void draw_wide_line_threshold(struct draw_context
*draw
, float threshold
);
110 void draw_enable_line_stipple(struct draw_context
*draw
, boolean enable
);
112 void draw_enable_point_sprites(struct draw_context
*draw
, boolean enable
);
114 void draw_set_mrd(struct draw_context
*draw
, double mrd
);
117 draw_install_aaline_stage(struct draw_context
*draw
, struct pipe_context
*pipe
);
120 draw_install_aapoint_stage(struct draw_context
*draw
, struct pipe_context
*pipe
);
123 draw_install_pstipple_stage(struct draw_context
*draw
, struct pipe_context
*pipe
);
126 struct tgsi_shader_info
*
127 draw_get_shader_info(const struct draw_context
*draw
);
130 draw_find_shader_output(const struct draw_context
*draw
,
131 uint semantic_name
, uint semantic_index
);
134 draw_num_shader_outputs(const struct draw_context
*draw
);
138 draw_texture_sampler(struct draw_context
*draw
,
140 struct tgsi_sampler
*sampler
);
143 draw_set_sampler_views(struct draw_context
*draw
,
144 unsigned shader_stage
,
145 struct pipe_sampler_view
**views
,
148 draw_set_samplers(struct draw_context
*draw
,
149 unsigned shader_stage
,
150 struct pipe_sampler_state
**samplers
,
154 draw_set_mapped_texture(struct draw_context
*draw
,
155 unsigned shader_stage
,
157 uint32_t width
, uint32_t height
, uint32_t depth
,
158 uint32_t first_level
, uint32_t last_level
,
160 uint32_t row_stride
[PIPE_MAX_TEXTURE_LEVELS
],
161 uint32_t img_stride
[PIPE_MAX_TEXTURE_LEVELS
],
162 uint32_t mip_offsets
[PIPE_MAX_TEXTURE_LEVELS
]);
166 * Vertex shader functions
169 struct draw_vertex_shader
*
170 draw_create_vertex_shader(struct draw_context
*draw
,
171 const struct pipe_shader_state
*shader
);
172 void draw_bind_vertex_shader(struct draw_context
*draw
,
173 struct draw_vertex_shader
*dvs
);
174 void draw_delete_vertex_shader(struct draw_context
*draw
,
175 struct draw_vertex_shader
*dvs
);
176 void draw_vs_attach_so(struct draw_vertex_shader
*dvs
,
177 const struct pipe_stream_output_info
*info
);
178 void draw_vs_reset_so(struct draw_vertex_shader
*dvs
);
182 * Fragment shader functions
184 struct draw_fragment_shader
*
185 draw_create_fragment_shader(struct draw_context
*draw
,
186 const struct pipe_shader_state
*shader
);
187 void draw_bind_fragment_shader(struct draw_context
*draw
,
188 struct draw_fragment_shader
*dvs
);
189 void draw_delete_fragment_shader(struct draw_context
*draw
,
190 struct draw_fragment_shader
*dvs
);
193 * Geometry shader functions
195 struct draw_geometry_shader
*
196 draw_create_geometry_shader(struct draw_context
*draw
,
197 const struct pipe_shader_state
*shader
);
198 void draw_bind_geometry_shader(struct draw_context
*draw
,
199 struct draw_geometry_shader
*dvs
);
200 void draw_delete_geometry_shader(struct draw_context
*draw
,
201 struct draw_geometry_shader
*dvs
);
205 * Vertex data functions
208 void draw_set_vertex_buffers(struct draw_context
*draw
,
209 unsigned start_slot
, unsigned count
,
210 const struct pipe_vertex_buffer
*buffers
);
212 void draw_set_vertex_elements(struct draw_context
*draw
,
214 const struct pipe_vertex_element
*elements
);
216 void draw_set_indexes(struct draw_context
*draw
,
217 const void *elements
, unsigned elem_size
,
218 unsigned available_space
);
220 void draw_set_mapped_vertex_buffer(struct draw_context
*draw
,
221 unsigned attr
, const void *buffer
,
225 draw_set_mapped_constant_buffer(struct draw_context
*draw
,
226 unsigned shader_type
,
232 draw_set_mapped_so_targets(struct draw_context
*draw
,
234 struct draw_so_target
*targets
[PIPE_MAX_SO_BUFFERS
]);
237 /***********************************************************************
241 void draw_vbo(struct draw_context
*draw
,
242 const struct pipe_draw_info
*info
);
245 /*******************************************************************************
246 * Driver backend interface
249 void draw_set_render( struct draw_context
*draw
,
250 struct vbuf_render
*render
);
252 void draw_set_driver_clipping( struct draw_context
*draw
,
253 boolean bypass_clip_xy
,
254 boolean bypass_clip_z
,
255 boolean guard_band_xy
);
257 void draw_set_force_passthrough( struct draw_context
*draw
,
261 /*******************************************************************************
264 void draw_collect_pipeline_statistics(struct draw_context
*draw
,
267 /*******************************************************************************
270 boolean
draw_need_pipeline(const struct draw_context
*draw
,
271 const struct pipe_rasterizer_state
*rasterizer
,
275 draw_get_shader_param(unsigned shader
, enum pipe_shader_cap param
);
278 draw_get_shader_param_no_llvm(unsigned shader
, enum pipe_shader_cap param
);
282 draw_get_option_use_llvm(void);
285 #endif /* DRAW_CONTEXT_H */