glformats.h revision 7ec681f3 
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 <stdint.h>
33#include <GL/gl.h>
34
35
36#ifdef __cplusplus
37extern "C" {
38#endif
39
40struct gl_context;
41
42extern void
43_mesa_compute_component_mapping(GLenum inFormat, GLenum outFormat, GLubyte *map);
44
45extern GLboolean
46_mesa_type_is_packed(GLenum type);
47
48extern GLint
49_mesa_sizeof_type( GLenum type );
50
51extern GLint
52_mesa_sizeof_packed_type( GLenum type );
53
54extern GLint
55_mesa_components_in_format( GLenum format );
56
57extern GLint
58_mesa_bytes_per_pixel( GLenum format, GLenum type );
59
60extern GLint
61_mesa_bytes_per_vertex_attrib(GLint comps, GLenum type);
62
63extern GLboolean
64_mesa_is_astc_format(GLenum internalFormat);
65
66extern GLboolean
67_mesa_is_etc2_format(GLenum internalFormat);
68
69extern GLboolean
70_mesa_is_type_unsigned(GLenum type);
71
72extern GLboolean
73_mesa_is_enum_format_unsized(GLenum format);
74
75extern GLboolean
76_mesa_is_enum_format_unorm(GLenum format);
77
78extern GLboolean
79_mesa_is_enum_format_snorm(GLenum format);
80
81extern GLboolean
82_mesa_is_enum_format_integer(GLenum format);
83
84extern GLboolean
85_mesa_is_enum_format_unsigned_int(GLenum format);
86
87extern GLboolean
88_mesa_is_enum_format_signed_int(GLenum format);
89
90extern GLboolean
91_mesa_is_color_format(GLenum format);
92
93extern GLboolean
94_mesa_is_depth_format(GLenum format);
95
96extern GLboolean
97_mesa_is_stencil_format(GLenum format);
98
99extern GLboolean
100_mesa_is_ycbcr_format(GLenum format);
101
102extern GLboolean
103_mesa_is_depthstencil_format(GLenum format);
104
105extern GLboolean
106_mesa_is_depth_or_stencil_format(GLenum format);
107
108extern GLboolean
109_mesa_has_depth_float_channel(GLenum internalFormat);
110
111extern GLboolean
112_mesa_is_compressed_format(const struct gl_context *ctx, GLenum format);
113
114extern GLboolean
115_mesa_is_srgb_format(GLenum format);
116
117extern GLenum
118_mesa_base_format_to_integer_format(GLenum format);
119
120extern GLenum
121_mesa_unpack_format_to_base_format(GLenum format);
122
123extern GLboolean
124_mesa_base_format_has_channel(GLenum base_format, GLenum pname);
125
126extern GLenum
127_mesa_generic_compressed_format_to_uncompressed_format(GLenum format);
128
129extern GLenum
130_mesa_get_nongeneric_internalformat(GLenum format);
131
132extern GLenum
133_mesa_get_linear_internalformat(GLenum format);
134
135extern GLenum
136_mesa_error_check_format_and_type(const struct gl_context *ctx,
137                                  GLenum format, GLenum type);
138
139extern GLenum
140_mesa_es_error_check_format_and_type(const struct gl_context *ctx,
141                                     GLenum format, GLenum type,
142                                     unsigned dimensions);
143
144extern GLenum
145_mesa_gles_error_check_format_and_type(const struct gl_context *ctx,
146                                       GLenum format, GLenum type,
147                                       GLenum internalFormat);
148extern GLint
149_mesa_base_tex_format(const struct gl_context *ctx, GLint internalFormat );
150
151extern uint32_t
152_mesa_format_from_format_and_type(GLenum format, GLenum type);
153
154bool
155_mesa_swap_bytes_in_type_enum(GLenum *type);
156
157extern uint32_t
158_mesa_tex_format_from_format_and_type(const struct gl_context *ctx,
159                                      GLenum gl_format, GLenum type);
160
161extern bool
162_mesa_is_es3_color_renderable(const struct gl_context *ctx,
163                              GLenum internal_format);
164
165extern bool
166_mesa_is_es3_texture_filterable(const struct gl_context *ctx,
167                                GLenum internal_format);
168
169#ifdef __cplusplus
170}
171#endif
172
173#endif /* GLFORMATS_H */
174