src/mesa/main/glformats.h

/*
 * Mesa 3-D graphics library
 *
 * Copyright (C) 1999-2008  Brian Paul   All Rights Reserved.
 * Copyright (c) 2008-2009  VMware, Inc.
 * Copyright (c) 2012 Intel Corporation
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included
 * in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 * OTHER DEALINGS IN THE SOFTWARE.
 */

#ifndef GLFORMATS_H
#define GLFORMATS_H


#include <stdbool.h>
#include <GL/gl.h>


#ifdef __cplusplus
extern "C" {
#endif

extern void
_mesa_compute_component_mapping(GLenum inFormat, GLenum outFormat, GLubyte *map);

extern GLboolean
_mesa_type_is_packed(GLenum type);

extern GLint
_mesa_sizeof_type( GLenum type );

extern GLint
_mesa_sizeof_packed_type( GLenum type );

extern GLint
_mesa_components_in_format( GLenum format );

extern GLint
_mesa_bytes_per_pixel( GLenum format, GLenum type );

extern GLint
_mesa_bytes_per_vertex_attrib(GLint comps, GLenum type);

extern GLboolean
_mesa_is_astc_format(GLenum internalFormat);

extern GLboolean
_mesa_is_etc2_format(GLenum internalFormat);

extern GLboolean
_mesa_is_type_unsigned(GLenum type);

extern GLboolean
_mesa_is_enum_format_unsized(GLenum format);

extern GLboolean
_mesa_is_enum_format_unorm(GLenum format);

extern GLboolean
_mesa_is_enum_format_snorm(GLenum format);

extern GLboolean
_mesa_is_enum_format_integer(GLenum format);

extern GLboolean
_mesa_is_enum_format_unsigned_int(GLenum format);

extern GLboolean
_mesa_is_enum_format_signed_int(GLenum format);

extern GLboolean
_mesa_is_color_format(GLenum format);

extern GLboolean
_mesa_is_depth_format(GLenum format);

extern GLboolean
_mesa_is_stencil_format(GLenum format);

extern GLboolean
_mesa_is_ycbcr_format(GLenum format);

extern GLboolean
_mesa_is_depthstencil_format(GLenum format);

extern GLboolean
_mesa_is_depth_or_stencil_format(GLenum format);

extern GLboolean
_mesa_is_compressed_format(const struct gl_context *ctx, GLenum format);

extern GLboolean
_mesa_is_srgb_format(GLenum format);

extern GLenum
_mesa_base_format_to_integer_format(GLenum format);

extern GLenum
_mesa_unpack_format_to_base_format(GLenum format);

extern GLboolean
_mesa_base_format_has_channel(GLenum base_format, GLenum pname);

extern GLint
_mesa_base_format_component_count(GLenum base_format);

extern GLenum
_mesa_generic_compressed_format_to_uncompressed_format(GLenum format);

extern GLenum
_mesa_get_nongeneric_internalformat(GLenum format);

extern GLenum
_mesa_get_linear_internalformat(GLenum format);

extern GLenum
_mesa_error_check_format_and_type(const struct gl_context *ctx,
                                  GLenum format, GLenum type);

extern GLenum
_mesa_es_error_check_format_and_type(const struct gl_context *ctx,
                                     GLenum format, GLenum type,
                                     unsigned dimensions);

extern GLenum
_mesa_es3_error_check_format_and_type(const struct gl_context *ctx,
                                      GLenum format, GLenum type,
                                      GLenum internalFormat);
extern GLint
_mesa_base_tex_format(const struct gl_context *ctx, GLint internalFormat );

extern uint32_t
_mesa_format_from_format_and_type(GLenum format, GLenum type);

extern bool
_mesa_is_es3_color_renderable(GLenum internal_format);

extern bool
_mesa_is_es3_texture_filterable(const struct gl_context *ctx,
                                GLenum internal_format);

#ifdef __cplusplus
}
#endif

#endif /* GLFORMATS_H */