src/mesa/main/glformats.h

   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
  36 extern "C" {
  37 #endif
  38
  39 extern void
  40 _mesa_compute_component_mapping(GLenum inFormat, GLenum outFormat, GLubyte *map);
  41
  42 extern GLboolean
  43 _mesa_type_is_packed(GLenum type);
  44
  45 extern GLint
  46 _mesa_sizeof_type( GLenum type );
  47
  48 extern GLint
  49 _mesa_sizeof_packed_type( GLenum type );
  50
  51 extern GLint
  52 _mesa_components_in_format( GLenum format );
  53
  54 extern GLint
  55 _mesa_bytes_per_pixel( GLenum format, GLenum type );
  56
  57 extern GLint
  58 _mesa_bytes_per_vertex_attrib(GLint comps, GLenum type);
  59
  60 extern GLboolean
  61 _mesa_is_astc_format(GLenum internalFormat);
  62
  63 extern GLboolean
  64 _mesa_is_etc2_format(GLenum internalFormat);
  65
  66 extern GLboolean
  67 _mesa_is_type_unsigned(GLenum type);
  68
  69 extern GLboolean
  70 _mesa_is_enum_format_unsized(GLenum format);
  71
  72 extern GLboolean
  73 _mesa_is_enum_format_unorm(GLenum format);
  74
  75 extern GLboolean
  76 _mesa_is_enum_format_snorm(GLenum format);
  77
  78 extern GLboolean
  79 _mesa_is_enum_format_integer(GLenum format);
  80
  81 extern GLboolean
  82 _mesa_is_enum_format_unsigned_int(GLenum format);
  83
  84 extern GLboolean
  85 _mesa_is_enum_format_signed_int(GLenum format);
  86
  87 extern GLboolean
  88 _mesa_is_color_format(GLenum format);
  89
  90 extern GLboolean
  91 _mesa_is_depth_format(GLenum format);
  92
  93 extern GLboolean
  94 _mesa_is_stencil_format(GLenum format);
  95
  96 extern GLboolean
  97 _mesa_is_ycbcr_format(GLenum format);
  98
  99 extern GLboolean
 100 _mesa_is_depthstencil_format(GLenum format);
 101
 102 extern GLboolean
 103 _mesa_is_depth_or_stencil_format(GLenum format);
 104
 105 extern GLboolean
 106 _mesa_is_compressed_format(const struct gl_context *ctx, GLenum format);
 107
 108 extern GLboolean
 109 _mesa_is_srgb_format(GLenum format);
 110
 111 extern GLenum
 112 _mesa_base_format_to_integer_format(GLenum format);
 113
 114 extern GLenum
 115 _mesa_unpack_format_to_base_format(GLenum format);
 116
 117 extern GLboolean
 118 _mesa_base_format_has_channel(GLenum base_format, GLenum pname);
 119
 120 extern GLint
 121 _mesa_base_format_component_count(GLenum base_format);
 122
 123 extern GLenum
 124 _mesa_generic_compressed_format_to_uncompressed_format(GLenum format);
 125
 126 extern GLenum
 127 _mesa_get_nongeneric_internalformat(GLenum format);
 128
 129 extern GLenum
 130 _mesa_get_linear_internalformat(GLenum format);
 131
 132 extern GLenum
 133 _mesa_error_check_format_and_type(const struct gl_context *ctx,
 134                                   GLenum format, GLenum type);
 135
 136 extern GLenum
 137 _mesa_es_error_check_format_and_type(const struct gl_context *ctx,
 138                                      GLenum format, GLenum type,
 139                                      unsigned dimensions);
 140
 141 extern GLenum
 142 _mesa_es3_error_check_format_and_type(const struct gl_context *ctx,
 143                                       GLenum format, GLenum type,
 144                                       GLenum internalFormat);
 145 extern GLint
 146 _mesa_base_tex_format(const struct gl_context *ctx, GLint internalFormat );
 147
 148 extern uint32_t
 149 _mesa_format_from_format_and_type(GLenum format, GLenum type);
 150
 151 extern bool
 152 _mesa_is_es3_color_renderable(GLenum internal_format);
 153
 154 extern bool
 155 _mesa_is_es3_texture_filterable(const struct gl_context *ctx,
 156                                 GLenum internal_format);
 157
 158 #ifdef __cplusplus
 159 }
 160 #endif
 161
 162 #endif /* GLFORMATS_H */