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
;
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 * stores an internal counter to how much of the stream
58 * out buffer is used (in bytes).
60 struct draw_so_target
{
61 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
);
71 draw_create_gallivm(struct pipe_context
*pipe
, struct gallivm_state
*gallivm
);
73 void draw_destroy( struct draw_context
*draw
);
75 void draw_flush(struct draw_context
*draw
);
77 void draw_set_viewport_state( struct draw_context
*draw
,
78 const struct pipe_viewport_state
*viewport
);
80 void draw_set_clip_state( struct draw_context
*pipe
,
81 const struct pipe_clip_state
*clip
);
84 * Sets the rasterization state used by the draw module.
85 * The rast_handle is used to pass the driver specific representation
86 * of the rasterization state. It's going to be used when the
87 * draw module sets the state back on the driver itself using the
88 * pipe::bind_rasterizer_state method.
90 * NOTE: if you're calling this function from within the pipe's
91 * bind_rasterizer_state you should always call it before binding
92 * the actual state - that's because the draw module can try to
93 * bind its own rasterizer state which would reset your newly
94 * set state. i.e. always do
95 * draw_set_rasterizer_state(driver->draw, state->pipe_state, state);
96 * driver->state.raster = state;
98 void draw_set_rasterizer_state( struct draw_context
*draw
,
99 const struct pipe_rasterizer_state
*raster
,
102 void draw_set_rasterize_stage( struct draw_context
*draw
,
103 struct draw_stage
*stage
);
105 void draw_wide_point_threshold(struct draw_context
*draw
, float threshold
);
107 void draw_wide_point_sprites(struct draw_context
*draw
, boolean draw_sprite
);
109 void draw_wide_line_threshold(struct draw_context
*draw
, float threshold
);
111 void draw_enable_line_stipple(struct draw_context
*draw
, boolean enable
);
113 void draw_enable_point_sprites(struct draw_context
*draw
, boolean enable
);
115 void draw_set_mrd(struct draw_context
*draw
, double mrd
);
118 draw_install_aaline_stage(struct draw_context
*draw
, struct pipe_context
*pipe
);
121 draw_install_aapoint_stage(struct draw_context
*draw
, struct pipe_context
*pipe
);
124 draw_install_pstipple_stage(struct draw_context
*draw
, struct pipe_context
*pipe
);
127 struct tgsi_shader_info
*
128 draw_get_shader_info(const struct draw_context
*draw
);
131 draw_find_shader_output(const struct draw_context
*draw
,
132 uint semantic_name
, uint semantic_index
);
135 draw_num_shader_outputs(const struct draw_context
*draw
);
139 draw_texture_samplers(struct draw_context
*draw
,
142 struct tgsi_sampler
**samplers
);
145 draw_set_sampler_views(struct draw_context
*draw
,
146 struct pipe_sampler_view
**views
,
149 draw_set_samplers(struct draw_context
*draw
,
150 struct pipe_sampler_state
**samplers
,
154 draw_set_mapped_texture(struct draw_context
*draw
,
155 unsigned sampler_idx
,
156 uint32_t width
, uint32_t height
, uint32_t depth
,
157 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 const void *data
[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
);
177 * Fragment shader functions
179 struct draw_fragment_shader
*
180 draw_create_fragment_shader(struct draw_context
*draw
,
181 const struct pipe_shader_state
*shader
);
182 void draw_bind_fragment_shader(struct draw_context
*draw
,
183 struct draw_fragment_shader
*dvs
);
184 void draw_delete_fragment_shader(struct draw_context
*draw
,
185 struct draw_fragment_shader
*dvs
);
188 * Geometry shader functions
190 struct draw_geometry_shader
*
191 draw_create_geometry_shader(struct draw_context
*draw
,
192 const struct pipe_shader_state
*shader
);
193 void draw_bind_geometry_shader(struct draw_context
*draw
,
194 struct draw_geometry_shader
*dvs
);
195 void draw_delete_geometry_shader(struct draw_context
*draw
,
196 struct draw_geometry_shader
*dvs
);
200 * Vertex data functions
203 void draw_set_vertex_buffers(struct draw_context
*draw
,
205 const struct pipe_vertex_buffer
*buffers
);
207 void draw_set_vertex_elements(struct draw_context
*draw
,
209 const struct pipe_vertex_element
*elements
);
211 void draw_set_indexes(struct draw_context
*draw
,
212 const void *elements
, unsigned elem_size
);
214 void draw_set_mapped_vertex_buffer(struct draw_context
*draw
,
215 unsigned attr
, const void *buffer
);
218 draw_set_mapped_constant_buffer(struct draw_context
*draw
,
219 unsigned shader_type
,
225 draw_set_mapped_so_buffers(struct draw_context
*draw
,
226 void *buffers
[PIPE_MAX_SO_BUFFERS
],
227 unsigned num_buffers
);
230 draw_set_mapped_so_targets(struct draw_context
*draw
,
232 struct draw_so_target
*targets
[PIPE_MAX_SO_BUFFERS
]);
235 draw_set_so_state(struct draw_context
*draw
,
236 struct pipe_stream_output_info
*state
);
239 /***********************************************************************
243 void draw_vbo(struct draw_context
*draw
,
244 const struct pipe_draw_info
*info
);
246 void draw_arrays(struct draw_context
*draw
, unsigned prim
,
247 unsigned start
, unsigned count
);
250 draw_arrays_instanced(struct draw_context
*draw
,
254 unsigned startInstance
,
255 unsigned instanceCount
);
258 /*******************************************************************************
259 * Driver backend interface
262 void draw_set_render( struct draw_context
*draw
,
263 struct vbuf_render
*render
);
265 void draw_set_driver_clipping( struct draw_context
*draw
,
266 boolean bypass_clip_xy
,
267 boolean bypass_clip_z
,
268 boolean guard_band_xy
);
270 void draw_set_force_passthrough( struct draw_context
*draw
,
273 /*******************************************************************************
276 boolean
draw_need_pipeline(const struct draw_context
*draw
,
277 const struct pipe_rasterizer_state
*rasterizer
,
281 draw_get_shader_param(unsigned shader
, enum pipe_shader_cap param
);
284 draw_get_shader_param_no_llvm(unsigned shader
, enum pipe_shader_cap param
);
286 #endif /* DRAW_CONTEXT_H */