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359 lines
9.9 KiB
C
359 lines
9.9 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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/**
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* SECTION:cogl-version
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* @short_description: Macros for determining the version of Cogl being used
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*
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* Cogl offers a set of macros for checking the version of the library
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* at compile time.
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*
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* Cogl adds version information to both API deprecations and additions;
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* by definining the macros %COGL_VERSION_MIN_REQUIRED and
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* %COGL_VERSION_MAX_ALLOWED, you can specify the range of Cogl versions
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* whose API you want to use. Functions that were deprecated before, or
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* introduced after, this range will trigger compiler warnings. For instance,
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* if we define the following symbols:
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*
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* |[
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* COGL_VERSION_MIN_REQUIRED = COGL_VERSION_1_6
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* COGL_VERSION_MAX_ALLOWED = COGL_VERSION_1_8
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* ]|
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*
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* and we have the following functions annotated in the Cogl headers:
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*
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* |[
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* COGL_DEPRECATED_IN_1_4 void cogl_function_A (void);
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* COGL_DEPRECATED_IN_1_6 void cogl_function_B (void);
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* COGL_AVAILABLE_IN_1_8 void cogl_function_C (void);
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* COGL_AVAILABLE_IN_1_10 void cogl_function_D (void);
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* ]|
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*
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* then any application code using the functions above will get the output:
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*
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* |[
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* cogl_function_A: deprecation warning
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* cogl_function_B: no warning
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* cogl_function_C: no warning
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* cogl_function_D: symbol not available warning
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* ]|
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*
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* It is possible to disable the compiler warnings by defining the macro
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* %COGL_DISABLE_DEPRECATION_WARNINGS before including the cogl.h
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* header.
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*/
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/**
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* COGL_VERSION_MAJOR:
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*
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* The major version of the Cogl library (1, if %COGL_VERSION is 1.2.3)
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*
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* Since: 1.12.0
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*/
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#define COGL_VERSION_MAJOR COGL_VERSION_MAJOR_INTERNAL
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/**
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* COGL_VERSION_MINOR:
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*
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* The minor version of the Cogl library (2, if %COGL_VERSION is 1.2.3)
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*
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* Since: 1.12.0
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*/
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#define COGL_VERSION_MINOR COGL_VERSION_MINOR_INTERNAL
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/**
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* COGL_VERSION_MICRO:
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*
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* The micro version of the Cogl library (3, if %COGL_VERSION is 1.2.3)
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*
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* Since: 1.12.0
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*/
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#define COGL_VERSION_MICRO COGL_VERSION_MICRO_INTERNAL
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/**
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* COGL_VERSION_STRING:
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*
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* The full version of the Cogl library, in string form (suited for
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* string concatenation)
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*
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* Since: 1.12.0
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*/
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#define COGL_VERSION_STRING COGL_VERSION_STRING_INTERNAL
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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:
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*
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* The Cogl version encoded into a single integer using the
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* COGL_VERSION_ENCODE() macro. This can be used for quick comparisons
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* with particular versions.
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*
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* Since: 1.12.0
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*/
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#define COGL_VERSION \
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COGL_VERSION_ENCODE (COGL_VERSION_MAJOR, \
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COGL_VERSION_MINOR, \
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COGL_VERSION_MICRO)
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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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/**
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* COGL_VERSION_1_0:
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*
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* A macro that evaluates to the 1.0 version of Cogl, in a format
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* that can be used by the C pre-processor.
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*
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* Since: 1.16
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*/
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#define COGL_VERSION_1_0 (COGL_VERSION_ENCODE (1, 0, 0))
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/**
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* COGL_VERSION_1_2:
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*
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* A macro that evaluates to the 1.2 version of Cogl, in a format
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* that can be used by the C pre-processor.
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*
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* Since: 1.16
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*/
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#define COGL_VERSION_1_2 (COGL_VERSION_ENCODE (1, 2, 0))
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/**
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* COGL_VERSION_1_4:
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*
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* A macro that evaluates to the 1.4 version of Cogl, in a format
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* that can be used by the C pre-processor.
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*
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* Since: 1.16
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*/
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#define COGL_VERSION_1_4 (COGL_VERSION_ENCODE (1, 4, 0))
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/**
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* COGL_VERSION_1_6:
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*
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* A macro that evaluates to the 1.6 version of Cogl, in a format
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* that can be used by the C pre-processor.
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*
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* Since: 1.16
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*/
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#define COGL_VERSION_1_6 (COGL_VERSION_ENCODE (1, 6, 0))
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/**
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* COGL_VERSION_1_8:
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*
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* A macro that evaluates to the 1.8 version of Cogl, in a format
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* that can be used by the C pre-processor.
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*
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* Since: 1.16
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*/
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#define COGL_VERSION_1_8 (COGL_VERSION_ENCODE (1, 8, 0))
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/**
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* COGL_VERSION_1_10:
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*
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* A macro that evaluates to the 1.10 version of Cogl, in a format
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* that can be used by the C pre-processor.
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*
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* Since: 1.16
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*/
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#define COGL_VERSION_1_10 (COGL_VERSION_ENCODE (1, 10, 0))
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/**
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* COGL_VERSION_1_12:
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*
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* A macro that evaluates to the 1.12 version of Cogl, in a format
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* that can be used by the C pre-processor.
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*
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* Since: 1.16
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*/
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#define COGL_VERSION_1_12 (COGL_VERSION_ENCODE (1, 12, 0))
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/**
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* COGL_VERSION_1_14:
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*
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* A macro that evaluates to the 1.14 version of Cogl, in a format
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* that can be used by the C pre-processor.
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*
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* Since: 1.16
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*/
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#define COGL_VERSION_1_14 (COGL_VERSION_ENCODE (1, 14, 0))
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/**
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* COGL_VERSION_1_16:
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*
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* A macro that evaluates to the 1.16 version of Cogl, in a format
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* that can be used by the C pre-processor.
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*
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* Since: 1.16
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*/
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#define COGL_VERSION_1_16 (COGL_VERSION_ENCODE (1, 16, 0))
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/**
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* COGL_VERSION_1_18:
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*
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* A macro that evaluates to the 1.18 version of Cogl, in a format
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* that can be used by the C pre-processor.
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*
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* Since: 1.18
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*/
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#define COGL_VERSION_1_18 (COGL_VERSION_ENCODE (1, 18, 0))
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/**
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* COGL_VERSION_1_20:
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*
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* A macro that evaluates to the 1.20 version of Cogl, in a format
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* that can be used by the C pre-processor.
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*
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* Since: 1.20
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*/
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#define COGL_VERSION_1_20 (COGL_VERSION_ENCODE (1, 20, 0))
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/* evaluates to the current stable version; for development cycles,
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* this means the next stable target
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*/
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#if (COGL_VERSION_MINOR_INTERNAL % 2)
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#define COGL_VERSION_CURRENT_STABLE \
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(COGL_VERSION_ENCODE (COGL_VERSION_MAJOR_INTERNAL, \
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COGL_VERSION_MINOR_INTERNAL + 1, 0))
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#else
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#define COGL_VERSION_CURRENT_STABLE \
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(COGL_VERSION_ENCODE (COGL_VERSION_MAJOR_INTERNAL, \
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COGL_VERSION_MINOR_INTERNAL, 0))
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#endif
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/* evaluates to the previous stable version */
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#if (COGL_VERSION_MINOR_INTERNAL % 2)
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#define COGL_VERSION_PREVIOUS_STABLE \
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(COGL_VERSION_ENCODE (COGL_VERSION_MAJOR_INTERNAL, \
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COGL_VERSION_MINOR_INTERNAL - 1, 0))
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#else
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#define COGL_VERSION_PREVIOUS_STABLE \
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(COGL_VERSION_ENCODE (COGL_VERSION_MAJOR_INTERNAL, \
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COGL_VERSION_MINOR_INTERNAL - 2, 0))
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#endif
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#endif /* __COGL_VERSION_H__ */
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