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