8116fdde1c
- Currently we manually unpack all platform libraries, that are required for GUI apps, and pack it into single eglmegapack.a library. It could be better do not execute such additional step, but have possibility to add required graphical libs to cmake interface lib via toolchain file list variable. Pick-to: 6.2 6.3 Change-Id: Ic4122600f02e6828d528ee4f00075f8c27f42e38 Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
85 lines
2.9 KiB
CMake
85 lines
2.9 KiB
CMake
include(CheckCXXSourceCompiles)
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# No library linkage is necessary to use GLESv2 with Emscripten. The headers are also
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# system headers, so we don't need to search for them.
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if(EMSCRIPTEN)
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set(HAVE_GLESv2 ON)
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else()
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find_library(GLESv2_LIBRARY NAMES GLESv2 OpenGLES)
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find_path(GLESv2_INCLUDE_DIR NAMES "GLES2/gl2.h" "OpenGLES/ES2/gl.h" DOC "The OpenGLES 2 include path")
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find_package(EGL)
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set(_libraries "${CMAKE_REQUIRED_LIBRARIES}")
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if(GLESv2_LIBRARY)
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list(APPEND CMAKE_REQUIRED_LIBRARIES "${GLESv2_LIBRARY}")
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endif ()
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if(EGL_LIBRARY)
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list(APPEND CMAKE_REQUIRED_LIBRARIES "${EGL_LIBRARY}")
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endif()
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if(_qt_igy_gui_libs)
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list(APPEND CMAKE_REQUIRED_LIBRARIES "${_qt_igy_gui_libs}")
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endif()
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set(_includes "${CMAKE_REQUIRED_INCLUDES}")
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list(APPEND CMAKE_REQUIRED_INCLUDES "${GLESv2_INCLUDE_DIR}")
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check_cxx_source_compiles("
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#ifdef __APPLE__
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# include <OpenGLES/ES2/gl.h>
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#else
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# define GL_GLEXT_PROTOTYPES
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# include <GLES2/gl2.h>
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#endif
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int main(int, char **) {
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glUniform1f(1, GLfloat(1.0));
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glClear(GL_COLOR_BUFFER_BIT);
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}" HAVE_GLESv2)
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set(CMAKE_REQUIRED_LIBRARY "${_libraries}")
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unset(_libraries)
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set(CMAKE_REQUIRED_INCLUDES "${_includes}")
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unset(_includes)
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set(package_args GLESv2_INCLUDE_DIR GLESv2_LIBRARY HAVE_GLESv2)
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endif()
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# Framework handling partially inspired by FindGLUT.cmake.
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if(GLESv2_LIBRARY MATCHES "/([^/]+)\\.framework$")
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# TODO: Might need to handle non .tbd suffixes, but didn't find an
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# example like that.
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# TODO: Might need to handle INTERFACE_INCLUDE_DIRECTORIES differently.
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set(_library_imported_location "${GLESv2_LIBRARY}/${CMAKE_MATCH_1}.tbd")
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if(NOT EXISTS "${_library_imported_location}")
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set(_library_imported_location "")
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endif()
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else()
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set(_library_imported_location "${GLESv2_LIBRARY}")
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endif()
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set(GLESv2_LIBRARY "${_library_imported_location}")
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list(APPEND package_args HAVE_GLESv2)
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include(FindPackageHandleStandardArgs)
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find_package_handle_standard_args(GLESv2 DEFAULT_MSG ${package_args})
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mark_as_advanced(${package_args})
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if(GLESv2_FOUND AND NOT TARGET GLESv2::GLESv2)
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if(EMSCRIPTEN OR IOS)
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add_library(GLESv2::GLESv2 INTERFACE IMPORTED)
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if(IOS)
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# For simulator_and_device builds we can't specify the full library path, because
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# it's specific to either the device or the simulator. Resort to passing a link
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# flag instead.
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target_link_libraries(GLESv2::GLESv2 INTERFACE "-framework OpenGLES")
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endif()
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else()
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add_library(GLESv2::GLESv2 UNKNOWN IMPORTED)
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set_target_properties(GLESv2::GLESv2 PROPERTIES
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IMPORTED_LOCATION "${GLESv2_LIBRARY}"
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INTERFACE_INCLUDE_DIRECTORIES "${GLESv2_INCLUDE_DIR}")
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if(EGL_LIBRARY)
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target_link_libraries(GLESv2::GLESv2 INTERFACE "${EGL_LIBRARY}")
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endif()
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endif()
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endif()
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