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magnum/modules/FindOpenGLES2.cmake

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Modern CMake usage: reworked to use target-specific properties. As with Corrade, this is not exactly backwards compatible, but for common use case without OBJECT libraries this should not be a problem. In any case, recreate the build dir and update your copy of all Find*.cmake modules to avoid weird things happening. User-facing changes: * Documentation of all Find*.cmake modules converted to reStructuredText to follow official CMake guidelines. * The newfangled way to use the libraries is to link to Magnum::Shaders instead of adding ${MAGNUM_SHADERS_INCLUDE_DIRS} to include path and linking to ${MAGNUM_SHADERS_LIBRARIES}. * The old ${MAGNUM_*_LIBRARIES} are deprecated and now just expand to Magnum::* target. Use the target directly. These are also enabled only when building with MAGNUM_BUILD_DEPRECATED. * The old ${MAGNUM_*_INCLUDE_DIRS} are removed as the Magnum::* targets cover these too. Internal changes: * Global state such as include_directories() was replaced with target-specific settings.
10 years ago
#.rst:
# Find OpenGL ES 2
# ----------------
Barebone X/EGL context.
14 years ago
#
Modern CMake usage: reworked to use target-specific properties. As with Corrade, this is not exactly backwards compatible, but for common use case without OBJECT libraries this should not be a problem. In any case, recreate the build dir and update your copy of all Find*.cmake modules to avoid weird things happening. User-facing changes: * Documentation of all Find*.cmake modules converted to reStructuredText to follow official CMake guidelines. * The newfangled way to use the libraries is to link to Magnum::Shaders instead of adding ${MAGNUM_SHADERS_INCLUDE_DIRS} to include path and linking to ${MAGNUM_SHADERS_LIBRARIES}. * The old ${MAGNUM_*_LIBRARIES} are deprecated and now just expand to Magnum::* target. Use the target directly. These are also enabled only when building with MAGNUM_BUILD_DEPRECATED. * The old ${MAGNUM_*_INCLUDE_DIRS} are removed as the Magnum::* targets cover these too. Internal changes: * Global state such as include_directories() was replaced with target-specific settings.
10 years ago
# Finds the OpenGL ES 2 library. This module defines:
#
# OpenGLES2_FOUND - True if OpenGL ES 2 library is found
# OpenGLES2::OpenGLES2 - OpenGL ES 2 imported target
#
# Additionally these variables are defined for internal usage:
Barebone X/EGL context.
14 years ago
#
# OPENGLES2_LIBRARY - OpenGL ES 2 library
modules: we don't need GL(ES) include files. Don't try to look for them if we don't use them. It only makes people install additional outdated crap on their machines for no reason. The only case where platform-specific GL headers are needed is in case of iOS which doesn't provide any means of function pointer loading, but there the include is passed implicitly from the framework.
7 years ago
#
# Please note this find module is tailored especially for the needs of Magnum.
# In particular, it depends on its platform definitions and doesn't look for
# OpenGL ES includes as Magnum has its own, generated using flextGL.
Barebone X/EGL context.
14 years ago
#
Relicensing to MIT/Expat license, part 4: CMake and documentation files. They didn't contain license header before, but I think adding it also there wouldn't do any harm. Documentation is also integral part of the codebase.
13 years ago
#
# This file is part of Magnum.
#
Updated copyright year.
6 years ago
# Copyright © 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019,
Here we go again.
1 year ago
# 2020, 2021, 2022, 2023, 2024, 2025
It's October already?!
2 years ago
# Vladimír Vondruš <mosra@centrum.cz>
Relicensing to MIT/Expat license, part 4: CMake and documentation files. They didn't contain license header before, but I think adding it also there wouldn't do any harm. Documentation is also integral part of the codebase.
13 years ago
#
# 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.
#
modules: explicitly link to Emscripten GL and OpenAL libraries. Emscripten's MINIMAL_RUNTIME requires -lGL or -lopenal to be specified (the default does that implicitly). It doesn't hurt to do that every time and it makes the Find modules slightly simpler.
7 years ago
# Under Emscripten, GL is linked implicitly. With MINIMAL_RUNTIME you need to
# specify -lGL. Simply set the library name to that.
if(CORRADE_TARGET_EMSCRIPTEN)
set(OPENGLES2_LIBRARY GL CACHE STRING "Path to a library." FORCE)
else()
Emscripten: ported FindOpenGLES2.cmake and FindSDL2.cmake. SDL headers are now included relatively.
13 years ago
find_library(OPENGLES2_LIBRARY NAMES
GLESv2
modules: updated FindOpenGLES[23].cmake to work on iOS.
10 years ago
# ANGLE (CMake doesn't search for lib prefix on Windows)
libGLESv2
# iOS
Dropped NaCl support.
9 years ago
OpenGLES)
Emscripten: ported FindOpenGLES2.cmake and FindSDL2.cmake. SDL headers are now included relatively.
13 years ago
endif()
Barebone X/EGL context.
14 years ago
include(FindPackageHandleStandardArgs)
Modern CMake usage: reworked to use target-specific properties. As with Corrade, this is not exactly backwards compatible, but for common use case without OBJECT libraries this should not be a problem. In any case, recreate the build dir and update your copy of all Find*.cmake modules to avoid weird things happening. User-facing changes: * Documentation of all Find*.cmake modules converted to reStructuredText to follow official CMake guidelines. * The newfangled way to use the libraries is to link to Magnum::Shaders instead of adding ${MAGNUM_SHADERS_INCLUDE_DIRS} to include path and linking to ${MAGNUM_SHADERS_LIBRARIES}. * The old ${MAGNUM_*_LIBRARIES} are deprecated and now just expand to Magnum::* target. Use the target directly. These are also enabled only when building with MAGNUM_BUILD_DEPRECATED. * The old ${MAGNUM_*_INCLUDE_DIRS} are removed as the Magnum::* targets cover these too. Internal changes: * Global state such as include_directories() was replaced with target-specific settings.
10 years ago
find_package_handle_standard_args(OpenGLES2 DEFAULT_MSG
modules: we don't need GL(ES) include files. Don't try to look for them if we don't use them. It only makes people install additional outdated crap on their machines for no reason. The only case where platform-specific GL headers are needed is in case of iOS which doesn't provide any means of function pointer loading, but there the include is passed implicitly from the framework.
7 years ago
OPENGLES2_LIBRARY)
Modern CMake usage: reworked to use target-specific properties. As with Corrade, this is not exactly backwards compatible, but for common use case without OBJECT libraries this should not be a problem. In any case, recreate the build dir and update your copy of all Find*.cmake modules to avoid weird things happening. User-facing changes: * Documentation of all Find*.cmake modules converted to reStructuredText to follow official CMake guidelines. * The newfangled way to use the libraries is to link to Magnum::Shaders instead of adding ${MAGNUM_SHADERS_INCLUDE_DIRS} to include path and linking to ${MAGNUM_SHADERS_LIBRARIES}. * The old ${MAGNUM_*_LIBRARIES} are deprecated and now just expand to Magnum::* target. Use the target directly. These are also enabled only when building with MAGNUM_BUILD_DEPRECATED. * The old ${MAGNUM_*_INCLUDE_DIRS} are removed as the Magnum::* targets cover these too. Internal changes: * Global state such as include_directories() was replaced with target-specific settings.
10 years ago
if(NOT TARGET OpenGLES2::OpenGLES2)
modules: explicitly link to Emscripten GL and OpenAL libraries. Emscripten's MINIMAL_RUNTIME requires -lGL or -lopenal to be specified (the default does that implicitly). It doesn't hurt to do that every time and it makes the Find modules slightly simpler.
7 years ago
# Work around BUGGY framework support on macOS. Do this also in case of
# Emscripten, since there we don't have a location either.
# http://public.kitware.com/pipermail/cmake/2016-April/063179.html
CMake: use if(var MATCHES ...) instead of if(${var} MATCHES ...).
3 years ago
if((CORRADE_TARGET_APPLE AND OPENGLES2_LIBRARY MATCHES "\\.framework$") OR CORRADE_TARGET_EMSCRIPTEN)
Modern CMake usage: reworked to use target-specific properties. As with Corrade, this is not exactly backwards compatible, but for common use case without OBJECT libraries this should not be a problem. In any case, recreate the build dir and update your copy of all Find*.cmake modules to avoid weird things happening. User-facing changes: * Documentation of all Find*.cmake modules converted to reStructuredText to follow official CMake guidelines. * The newfangled way to use the libraries is to link to Magnum::Shaders instead of adding ${MAGNUM_SHADERS_INCLUDE_DIRS} to include path and linking to ${MAGNUM_SHADERS_LIBRARIES}. * The old ${MAGNUM_*_LIBRARIES} are deprecated and now just expand to Magnum::* target. Use the target directly. These are also enabled only when building with MAGNUM_BUILD_DEPRECATED. * The old ${MAGNUM_*_INCLUDE_DIRS} are removed as the Magnum::* targets cover these too. Internal changes: * Global state such as include_directories() was replaced with target-specific settings.
10 years ago
add_library(OpenGLES2::OpenGLES2 INTERFACE IMPORTED)
modules: explicitly link to Emscripten GL and OpenAL libraries. Emscripten's MINIMAL_RUNTIME requires -lGL or -lopenal to be specified (the default does that implicitly). It doesn't hurt to do that every time and it makes the Find modules slightly simpler.
7 years ago
set_property(TARGET OpenGLES2::OpenGLES2 APPEND PROPERTY
INTERFACE_LINK_LIBRARIES ${OPENGLES2_LIBRARY})
else()
add_library(OpenGLES2::OpenGLES2 UNKNOWN IMPORTED)
set_property(TARGET OpenGLES2::OpenGLES2 PROPERTY
IMPORTED_LOCATION ${OPENGLES2_LIBRARY})
Modern CMake usage: reworked to use target-specific properties. As with Corrade, this is not exactly backwards compatible, but for common use case without OBJECT libraries this should not be a problem. In any case, recreate the build dir and update your copy of all Find*.cmake modules to avoid weird things happening. User-facing changes: * Documentation of all Find*.cmake modules converted to reStructuredText to follow official CMake guidelines. * The newfangled way to use the libraries is to link to Magnum::Shaders instead of adding ${MAGNUM_SHADERS_INCLUDE_DIRS} to include path and linking to ${MAGNUM_SHADERS_LIBRARIES}. * The old ${MAGNUM_*_LIBRARIES} are deprecated and now just expand to Magnum::* target. Use the target directly. These are also enabled only when building with MAGNUM_BUILD_DEPRECATED. * The old ${MAGNUM_*_INCLUDE_DIRS} are removed as the Magnum::* targets cover these too. Internal changes: * Global state such as include_directories() was replaced with target-specific settings.
10 years ago
endif()
endif()
modules: mark EGL/GLES *_LIBRARY and *_INCLUDE_DIR vars as advanced. Not sure why that wasn't done here. It only inflates the CMake option list as 90% of the people don't need to touch these.
7 years ago
mark_as_advanced(OPENGLES2_LIBRARY)