98af9bb251
Mutters copy of cogl isn't a separate library with its own version, so remove the old version macros.
133 lines
4.2 KiB
C
133 lines
4.2 KiB
C
/*
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* Cogl
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*
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* A Low Level GPU Graphics and Utilities API
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*
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* Copyright (C) 2012,2013 Intel Corporation.
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*
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* Permission is hereby granted, free of charge, to any person
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* obtaining a copy of this software and associated documentation
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* files (the "Software"), to deal in the Software without
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* restriction, including without limitation the rights to use, copy,
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* modify, merge, publish, distribute, sublicense, and/or sell copies
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* of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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*
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*/
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#ifndef __COGL_VERSION_H__
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#define __COGL_VERSION_H__
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#include <cogl/cogl-defines.h>
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/* Macros to handle compacting a 3-component version number into an
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* int for quick comparison. This assumes all of the components are <=
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* 1023 and that an int is >= 31 bits */
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#define COGL_VERSION_COMPONENT_BITS 10
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#define COGL_VERSION_MAX_COMPONENT_VALUE \
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((1 << COGL_VERSION_COMPONENT_BITS) - 1)
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/**
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* COGL_VERSION_ENCODE:
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* @major: The major part of a version number
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* @minor: The minor part of a version number
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* @micro: The micro part of a version number
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*
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* Encodes a 3 part version number into a single integer. This can be
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* used to compare the Cogl version. For example if there is a known
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* bug in Cogl versions between 1.3.2 and 1.3.4 you could use the
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* following code to provide a workaround:
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*
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* |[
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* #if COGL_VERSION >= COGL_VERSION_ENCODE (1, 3, 2) && \
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* COGL_VERSION <= COGL_VERSION_ENCODE (1, 3, 4)
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* /<!-- -->* Do the workaround *<!-- -->/
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* #endif
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* ]|
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*
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* Since: 1.12.0
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*/
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#define COGL_VERSION_ENCODE(major, minor, micro) \
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(((major) << (COGL_VERSION_COMPONENT_BITS * 2)) | \
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((minor) << COGL_VERSION_COMPONENT_BITS) \
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| (micro))
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/**
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* COGL_VERSION_GET_MAJOR:
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* @version: An encoded version number
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*
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* Extracts the major part of an encoded version number.
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*
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* Since: 1.12.0
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*/
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#define COGL_VERSION_GET_MAJOR(version) \
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(((version) >> (COGL_VERSION_COMPONENT_BITS * 2)) \
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& COGL_VERSION_MAX_COMPONENT_VALUE)
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/**
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* COGL_VERSION_GET_MINOR:
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* @version: An encoded version number
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*
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* Extracts the minor part of an encoded version number.
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*
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* Since: 1.12.0
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*/
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#define COGL_VERSION_GET_MINOR(version) \
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(((version) >> COGL_VERSION_COMPONENT_BITS) & \
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COGL_VERSION_MAX_COMPONENT_VALUE)
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/**
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* COGL_VERSION_GET_MICRO:
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* @version: An encoded version number
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*
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* Extracts the micro part of an encoded version number.
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*
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* Since: 1.12.0
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*/
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#define COGL_VERSION_GET_MICRO(version) \
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((version) & COGL_VERSION_MAX_COMPONENT_VALUE)
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/**
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* COGL_VERSION_CHECK:
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* @major: The major part of a version number
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* @minor: The minor part of a version number
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* @micro: The micro part of a version number
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*
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* A convenient macro to check whether the Cogl version being compiled
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* against is at least the given version number. For example if the
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* function cogl_pipeline_frobnicate was added in version 2.0.1 and
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* you want to conditionally use that function when it is available,
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* you could write the following:
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*
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* |[
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* #if COGL_VERSION_CHECK (2, 0, 1)
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* cogl_pipeline_frobnicate (pipeline);
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* #else
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* /<!-- -->* Frobnication is not supported. Use a red color instead *<!-- -->/
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* cogl_pipeline_set_color_4f (pipeline, 1.0f, 0.0f, 0.0f, 1.0f);
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* #endif
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* ]|
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*
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* Return value: %TRUE if the Cogl version being compiled against is
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* greater than or equal to the given three part version number.
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* Since: 1.12.0
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*/
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#define COGL_VERSION_CHECK(major, minor, micro) \
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(COGL_VERSION >= COGL_VERSION_ENCODE (major, minor, micro))
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#endif /* __COGL_VERSION_H__ */
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