u_draw.h revision b812ff8f9e5c9d292c0fb9518df1d35165542556 
1/**************************************************************************
2 *
3 * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
4 * All Rights Reserved.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
13 *
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
16 * of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
25 *
26 **************************************************************************/
27
28#ifndef U_DRAW_H
29#define U_DRAW_H
30
31
32#include "pipe/p_compiler.h"
33#include "pipe/p_context.h"
34#include "pipe/p_state.h"
35
36
37static INLINE void
38util_draw_init_info(struct pipe_draw_info *info)
39{
40   memset(info, 0, sizeof(*info));
41   info->instance_count = 1;
42   info->max_index = 0xffffffff;
43}
44
45
46static INLINE void
47util_draw_arrays(struct pipe_context *pipe, uint mode, uint start, uint count)
48{
49   struct pipe_draw_info info;
50
51   util_draw_init_info(&info);
52   info.mode = mode;
53   info.start = start;
54   info.count = count;
55   info.min_index = start;
56   info.max_index = start + count - 1;
57
58   pipe->draw_vbo(pipe, &info);
59}
60
61static INLINE void
62util_draw_elements(struct pipe_context *pipe, int index_bias,
63                   uint mode, uint start, uint count)
64{
65   struct pipe_draw_info info;
66
67   util_draw_init_info(&info);
68   info.indexed = TRUE;
69   info.mode = mode;
70   info.start = start;
71   info.count = count;
72   info.index_bias = index_bias;
73
74   pipe->draw_vbo(pipe, &info);
75}
76
77static INLINE void
78util_draw_arrays_instanced(struct pipe_context *pipe,
79                           uint mode, uint start, uint count,
80                           uint start_instance,
81                           uint instance_count)
82{
83   struct pipe_draw_info info;
84
85   util_draw_init_info(&info);
86   info.mode = mode;
87   info.start = start;
88   info.count = count;
89   info.start_instance = start_instance;
90   info.instance_count = instance_count;
91   info.min_index = start;
92   info.max_index = start + count - 1;
93
94   pipe->draw_vbo(pipe, &info);
95}
96
97static INLINE void
98util_draw_elements_instanced(struct pipe_context *pipe,
99                             int index_bias,
100                             uint mode, uint start, uint count,
101                             uint start_instance,
102                             uint instance_count)
103{
104   struct pipe_draw_info info;
105
106   util_draw_init_info(&info);
107   info.indexed = TRUE;
108   info.mode = mode;
109   info.start = start;
110   info.count = count;
111   info.index_bias = index_bias;
112   info.start_instance = start_instance;
113   info.instance_count = instance_count;
114
115   pipe->draw_vbo(pipe, &info);
116}
117
118static INLINE void
119util_draw_range_elements(struct pipe_context *pipe,
120                         int index_bias,
121                         uint min_index,
122                         uint max_index,
123                         uint mode, uint start, uint count)
124{
125   struct pipe_draw_info info;
126
127   util_draw_init_info(&info);
128   info.indexed = TRUE;
129   info.mode = mode;
130   info.start = start;
131   info.count = count;
132   info.index_bias = index_bias;
133   info.min_index = min_index;
134   info.max_index = max_index;
135
136   pipe->draw_vbo(pipe, &info);
137}
138
139#endif
140