1
2 /*
3 * Mesa 3-D graphics library
4 *
5 * Copyright (C) 1999-2001 Brian Paul 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 "Software"),
9 * to deal in the Software without restriction, including without limitation
10 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
11 * and/or sell copies of the Software, and to permit persons to whom the
12 * Software is furnished to do so, subject to the following conditions:
13 *
14 * The above copyright notice and this permission notice shall be included
15 * in all copies or substantial portions of the Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
21 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
22 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
23 * OTHER DEALINGS IN THE SOFTWARE.
24 */
25
26
27 #ifndef API_VALIDATE_H
28 #define API_VALIDATE_H
29
30 #include "mtypes.h"
31
32 #ifdef __cplusplus
33 extern "C" {
34 #endif
35
36 struct gl_buffer_object;
37 struct gl_context;
38 struct gl_transform_feedback_object;
39
40
41 extern GLenum
42 _mesa_valid_prim_mode(struct gl_context *ctx, GLenum mode);
43
44 extern void
45 _mesa_update_valid_to_render_state(struct gl_context *ctx);
46
47 /**
48 * Is 'mode' a valid value for glBegin(), glDrawArrays(), glDrawElements(),
49 * etc? The set of legal values depends on whether geometry shaders/programs
50 * are supported.
51 * Note: This may be called during display list compilation.
52 */
53 static inline bool
_mesa_is_valid_prim_mode(const struct gl_context * ctx,GLenum mode)54 _mesa_is_valid_prim_mode(const struct gl_context *ctx, GLenum mode)
55 {
56 /* All primitive types are less than 32, which allows us to use a mask. */
57 return mode < 32 && (1u << mode) & ctx->SupportedPrimMask;
58 }
59
60 #ifdef __cplusplus
61 }
62 #endif
63
64 #endif
65