1/*
2 * Mesa 3-D graphics library
3 *
4 * Copyright (C) 1999-2008  Brian Paul   All Rights Reserved.
5 * Copyright (c) 2008-2009  VMware, Inc.
6 * Copyright (c) 2012 Intel Corporation
7 *
8 * Permission is hereby granted, free of charge, to any person obtaining a
9 * copy of this software and associated documentation files (the "Software"),
10 * to deal in the Software without restriction, including without limitation
11 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
12 * and/or sell copies of the Software, and to permit persons to whom the
13 * Software is furnished to do so, subject to the following conditions:
14 *
15 * The above copyright notice and this permission notice shall be included
16 * in all copies or substantial portions 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 MERCHANTABILITY,
20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
21 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
22 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
23 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
24 * OTHER DEALINGS IN THE SOFTWARE.
25 */
26
27#ifndef GLFORMATS_H
28#define GLFORMATS_H
29
30
31#include <stdbool.h>
32#include <GL/gl.h>
33
34
35#ifdef __cplusplus
36extern "C" {
37#endif
38
39struct gl_context;
40
41extern void
42_mesa_compute_component_mapping(GLenum inFormat, GLenum outFormat, GLubyte *map);
43
44extern GLboolean
45_mesa_type_is_packed(GLenum type);
46
47extern GLint
48_mesa_sizeof_type( GLenum type );
49
50extern GLint
51_mesa_sizeof_packed_type( GLenum type );
52
53extern GLint
54_mesa_components_in_format( GLenum format );
55
56extern GLint
57_mesa_bytes_per_pixel( GLenum format, GLenum type );
58
59extern GLint
60_mesa_bytes_per_vertex_attrib(GLint comps, GLenum type);
61
62extern GLboolean
63_mesa_is_astc_format(GLenum internalFormat);
64
65extern GLboolean
66_mesa_is_etc2_format(GLenum internalFormat);
67
68extern GLboolean
69_mesa_is_type_unsigned(GLenum type);
70
71extern GLboolean
72_mesa_is_enum_format_unsized(GLenum format);
73
74extern GLboolean
75_mesa_is_enum_format_unorm(GLenum format);
76
77extern GLboolean
78_mesa_is_enum_format_snorm(GLenum format);
79
80extern GLboolean
81_mesa_is_enum_format_integer(GLenum format);
82
83extern GLboolean
84_mesa_is_enum_format_unsigned_int(GLenum format);
85
86extern GLboolean
87_mesa_is_enum_format_signed_int(GLenum format);
88
89extern GLboolean
90_mesa_is_color_format(GLenum format);
91
92extern GLboolean
93_mesa_is_depth_format(GLenum format);
94
95extern GLboolean
96_mesa_is_stencil_format(GLenum format);
97
98extern GLboolean
99_mesa_is_ycbcr_format(GLenum format);
100
101extern GLboolean
102_mesa_is_depthstencil_format(GLenum format);
103
104extern GLboolean
105_mesa_is_depth_or_stencil_format(GLenum format);
106
107extern GLboolean
108_mesa_is_compressed_format(const struct gl_context *ctx, GLenum format);
109
110extern GLboolean
111_mesa_is_srgb_format(GLenum format);
112
113extern GLenum
114_mesa_base_format_to_integer_format(GLenum format);
115
116extern GLenum
117_mesa_unpack_format_to_base_format(GLenum format);
118
119extern GLboolean
120_mesa_base_format_has_channel(GLenum base_format, GLenum pname);
121
122extern GLenum
123_mesa_generic_compressed_format_to_uncompressed_format(GLenum format);
124
125extern GLenum
126_mesa_get_nongeneric_internalformat(GLenum format);
127
128extern GLenum
129_mesa_get_linear_internalformat(GLenum format);
130
131extern GLenum
132_mesa_error_check_format_and_type(const struct gl_context *ctx,
133                                  GLenum format, GLenum type);
134
135extern GLenum
136_mesa_es_error_check_format_and_type(const struct gl_context *ctx,
137                                     GLenum format, GLenum type,
138                                     unsigned dimensions);
139
140extern GLenum
141_mesa_gles_error_check_format_and_type(const struct gl_context *ctx,
142                                       GLenum format, GLenum type,
143                                       GLenum internalFormat);
144extern GLint
145_mesa_base_tex_format(const struct gl_context *ctx, GLint internalFormat );
146
147extern uint32_t
148_mesa_format_from_format_and_type(GLenum format, GLenum type);
149
150extern uint32_t
151_mesa_tex_format_from_format_and_type(const struct gl_context *ctx,
152                                      GLenum gl_format, GLenum type);
153
154extern bool
155_mesa_is_es3_color_renderable(const struct gl_context *ctx,
156                              GLenum internal_format);
157
158extern bool
159_mesa_is_es3_texture_filterable(const struct gl_context *ctx,
160                                GLenum internal_format);
161
162#ifdef __cplusplus
163}
164#endif
165
166#endif /* GLFORMATS_H */
167