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| author | Simon Hausmann <simon.hausmann@qt.io> | 2019-02-11 16:58:26 +0100 |
|---|---|---|
| committer | Simon Hausmann <simon.hausmann@qt.io> | 2019-02-12 14:57:30 +0000 |
| commit | 519ef817ffb4dbadb00ac958e7402cbfeaf135af (patch) | |
| tree | 1a3dd3891011fb0b433a5b1f6c880e3751b36dde /cmake/FindGLESv2.cmake | |
| parent | 6424e70bbef492f052d1aa6b7ce36d5326625e6e (diff) | |
Fix Desktop GL/EGL/GLESv2 linkage
This change fixes a few things in one go:
* cmake's FindOpenGL cannot be used reliably to detect EGL. So use a
custom module for that.
* Added a custom module for GLESv2 detection, as cmake's FindOpenGL
does not support that.
* Map CONFIG += opengl to a WrapOpenGL target, which links against
either GLESv2 or libGL - just like mkspecs/features/*/opengl.prf
* cmake's FindOpenGL remains in use solely to detect the availability
of desktop gl.
Change-Id: I9315e5ad1fd88e1b7dc7e920053e98fb51fea7fc
Reviewed-by: Volker Krause <volker.krause@kdab.com>
Diffstat (limited to 'cmake/FindGLESv2.cmake')
| -rw-r--r-- | cmake/FindGLESv2.cmake | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/cmake/FindGLESv2.cmake b/cmake/FindGLESv2.cmake new file mode 100644 index 0000000000..a4af6cbbbc --- /dev/null +++ b/cmake/FindGLESv2.cmake @@ -0,0 +1,40 @@ +include(CheckCXXSourceCompiles) + +find_library(GLESv2_LIBRARY NAMES GLESv2) +find_path(GLESv2_INCLUDE_DIR NAMES "GLES2/gl2.h" DOC "The OpenGLES 2 include path") + +set(_libraries "${CMAKE_REQUIRED_LIBRARIES}") +list(APPEND CMAKE_REQUIRED_LIBRARIES "${GLESv2_LIBRARY}") +set(_includes "${CMAKE_REQUIRED_INCLUDES}") +list(APPEND CMAKE_REQUIRED_INCLUDES "${GLESv2_INCLUDE_DIR}") + +check_cxx_source_compiles(" +#ifdef __APPLE__ +# include <OpenGLES/ES2/gl.h> +#else +# define GL_GLEXT_PROTOTYPES +# include <GLES2/gl2.h> +#endif + +int main(int argc, char *argv[]) { + glUniform1f(1, GLfloat(1.0)); + glClear(GL_COLOR_BUFFER_BIT); +}" HAVE_GLESv2) + +set(CMAKE_REQUIRED_LIBRARY "${_libraries}") +unset(_libraries) +set(CMAKE_REQUIRED_INCLUDES "${_includes}") +unset(_includes) + + +include(FindPackageHandleStandardArgs) +find_package_handle_standard_args(GLESv2 DEFAULT_MSG GLESv2_INCLUDE_DIR GLESv2_LIBRARY HAVE_GLESv2) + +mark_as_advanced(GLESv2_INCLUDE_DIR GLESv2_LIBRARY HAVE_GLESv2) + +if(GLESv2_FOUND AND NOT TARGET GLESv2::GLESv2) + add_library(GLESv2::GLESv2 UNKNOWN IMPORTED) + set_target_properties(GLESv2::GLESv2 PROPERTIES + IMPORTED_LOCATION "${GLESv2_LIBRARY}" + INTERFACE_INCLUDE_DIRECTORIES "${GLESv2_INCLUDE_DIR}") +endif() |