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1 /*
2  * Mesa 3-D graphics library
3  *
4  * Copyright (C) 2011  VMware, Inc.  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 "Software"),
8  * to deal in the Software without restriction, including without limitation
9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10  * and/or sell copies of the Software, and to permit persons to whom the
11  * Software is furnished to do so, subject to the following conditions:
12  *
13  * The above copyright notice and this permission notice shall be included
14  * in all copies or substantial portions of the Software.
15  *
16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
17  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
20  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
22  * OTHER DEALINGS IN THE SOFTWARE.
23  */
24 
25 
26 #ifndef TEXSTORAGE_H
27 #define TEXSTORAGE_H
28 
29 /**
30  * \name Internal functions
31  */
32 /*@{*/
33 
34 /**
35  * Texture width, height and depth check shared with the
36  * multisample variants of TexStorage functions.
37  *
38  * From OpenGL 4.5 Core spec, page 260 (section 8.19)
39  *
40  *     "An INVALID_VALUE error is generated if width, height, depth
41  *     or levels are less than 1, for commands with the corresponding
42  *     parameters."
43  *
44  * (referring to TextureStorage* commands, these also match values
45  * specified for OpenGL ES 3.1.)
46  */
47 static inline bool
_mesa_valid_tex_storage_dim(GLsizei width,GLsizei height,GLsizei depth)48 _mesa_valid_tex_storage_dim(GLsizei width, GLsizei height, GLsizei depth)
49 {
50    if (width < 1 || height < 1 || depth < 1)
51       return false;
52    return true;
53 }
54 
55 /*@}*/
56 
57 extern GLboolean
58 _mesa_is_legal_tex_storage_format(const struct gl_context *ctx,
59                                   GLenum internalformat);
60 
61 extern bool
62 _mesa_is_legal_tex_storage_target(const struct gl_context *ctx,
63                                   GLuint dims, GLenum target);
64 
65 extern void
66 _mesa_texture_storage_memory(struct gl_context *ctx, GLuint dims,
67                              struct gl_texture_object *texObj,
68                              struct gl_memory_object *memObj,
69                              GLenum target, GLsizei levels,
70                              GLenum internalformat, GLsizei width,
71                              GLsizei height, GLsizei depth,
72                              GLuint64 offset, bool dsa);
73 
74 #endif /* TEXSTORAGE_H */
75