draw_context.h revision 0d4ece4c5a243dc4b684331bad49f220311e5520 
1
2/**************************************************************************
3 *
4 * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
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 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.
26 *
27 **************************************************************************/
28
29/**
30 * \brief  Public interface into the drawing module.
31 */
32
33/* Authors:  Keith Whitwell <keith@tungstengraphics.com>
34 */
35
36
37#ifndef DRAW_CONTEXT_H
38#define DRAW_CONTEXT_H
39
40
41#include "pipe/p_state.h"
42
43
44struct pipe_context;
45struct draw_context;
46struct draw_stage;
47struct draw_vertex_shader;
48
49
50
51struct draw_context *draw_create( void );
52
53void draw_destroy( struct draw_context *draw );
54
55void draw_set_viewport_state( struct draw_context *draw,
56                              const struct pipe_viewport_state *viewport );
57
58void draw_set_clip_state( struct draw_context *pipe,
59                          const struct pipe_clip_state *clip );
60
61void draw_set_rasterizer_state( struct draw_context *draw,
62                                const struct pipe_rasterizer_state *raster );
63
64void draw_set_rasterize_stage( struct draw_context *draw,
65                               struct draw_stage *stage );
66
67void draw_wide_point_threshold(struct draw_context *draw, float threshold);
68
69void draw_wide_line_threshold(struct draw_context *draw, float threshold);
70
71void draw_enable_line_stipple(struct draw_context *draw, boolean enable);
72
73void draw_enable_point_sprites(struct draw_context *draw, boolean enable);
74
75
76boolean
77draw_install_aaline_stage(struct draw_context *draw, struct pipe_context *pipe);
78
79boolean
80draw_install_aapoint_stage(struct draw_context *draw, struct pipe_context *pipe);
81
82boolean
83draw_install_pstipple_stage(struct draw_context *draw, struct pipe_context *pipe);
84
85
86int
87draw_find_vs_output(struct draw_context *draw,
88                    uint semantic_name, uint semantic_index);
89
90uint
91draw_num_vs_outputs(struct draw_context *draw);
92
93
94
95/*
96 * Vertex shader functions
97 */
98
99struct draw_vertex_shader *
100draw_create_vertex_shader(struct draw_context *draw,
101                          const struct pipe_shader_state *shader);
102void draw_bind_vertex_shader(struct draw_context *draw,
103                             struct draw_vertex_shader *dvs);
104void draw_delete_vertex_shader(struct draw_context *draw,
105                               struct draw_vertex_shader *dvs);
106
107
108
109/*
110 * Vertex data functions
111 */
112
113void draw_set_vertex_buffers(struct draw_context *draw,
114                             unsigned count,
115                             const struct pipe_vertex_buffer *buffers);
116
117void draw_set_vertex_elements(struct draw_context *draw,
118			      unsigned count,
119                              const struct pipe_vertex_element *elements);
120
121void draw_set_mapped_element_buffer( struct draw_context *draw,
122                                     unsigned eltSize, void *elements );
123
124void draw_set_mapped_vertex_buffer(struct draw_context *draw,
125                                   unsigned attr, const void *buffer);
126
127void draw_set_mapped_constant_buffer(struct draw_context *draw,
128                                     const void *buffer);
129
130void draw_set_edgeflags( struct draw_context *draw,
131                         const unsigned *edgeflag );
132
133
134/***********************************************************************
135 * draw_prim.c
136 */
137
138void draw_arrays(struct draw_context *draw, unsigned prim,
139		 unsigned start, unsigned count);
140
141void draw_flush(struct draw_context *draw);
142
143
144/*******************************************************************************
145 * Driver backend interface
146 */
147struct vbuf_render;
148void draw_set_render( struct draw_context *draw,
149		      struct vbuf_render *render );
150
151#endif /* DRAW_CONTEXT_H */
152