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"
53 #define CLIP_RIGHT_BIT 0x01
54 #define CLIP_LEFT_BIT 0x02
55 #define CLIP_TOP_BIT 0x04
56 #define CLIP_BOTTOM_BIT 0x08
57 #define CLIP_NEAR_BIT 0x10
58 #define CLIP_FAR_BIT 0x20
59 #define CLIP_USER_BIT 0x40
60 #define CLIP_CULL_BIT 0x80
64 * Bitshift for each clip flag
67 #define CLIP_RIGHT_SHIFT 0
68 #define CLIP_LEFT_SHIFT 1
69 #define CLIP_TOP_SHIFT 2
70 #define CLIP_BOTTOM_SHIFT 3
71 #define CLIP_NEAR_SHIFT 4
72 #define CLIP_FAR_SHIFT 5
76 struct draw_context
*draw_create( void );
78 void draw_destroy( struct draw_context
*draw
);
80 void draw_set_viewport_state( struct draw_context
*draw
,
81 const struct pipe_viewport_state
*viewport
);
83 void draw_set_clip_state( struct draw_context
*pipe
,
84 const struct pipe_clip_state
*clip
);
86 void draw_set_setup_state( struct draw_context
*draw
,
87 const struct pipe_setup_state
*setup
);
89 void draw_set_setup_stage( struct draw_context
*draw
,
90 struct draw_stage
*stage
);
92 void draw_set_vertex_attributes( struct draw_context
*draw
,
93 const unsigned *attrs
,
96 unsigned draw_prim_info( unsigned prim
, unsigned *first
, unsigned *incr
);
98 unsigned draw_trim( unsigned count
, unsigned first
, unsigned incr
);
100 void draw_set_mapped_element_buffer( struct draw_context
*draw
,
101 unsigned eltSize
, void *elements
);
103 void draw_set_mapped_vertex_buffer(struct draw_context
*draw
,
104 unsigned attr
, const void *buffer
);
106 void draw_set_mapped_constant_buffer(struct draw_context
*draw
,
110 draw_set_vertex_buffer(struct draw_context
*draw
,
112 const struct pipe_vertex_buffer
*buffer
);
115 draw_set_vertex_element(struct draw_context
*draw
,
117 const struct pipe_vertex_element
*element
);
120 draw_set_vertex_shader(struct draw_context
*draw
,
121 const struct pipe_shader_state
*shader
);
125 draw_arrays(struct draw_context
*draw
, unsigned prim
,
126 unsigned start
, unsigned count
);
129 #endif /* DRAW_CONTEXT_H */