OpenGL (Android): enable support

Author: CarterLi

CMakeLists.txt

@@ -70,8 +70,8 @@ cmake_dependent_option(ENABLE_IMAGEMAGICK7 "Enable imagemagick 7" ON "LINUX OR F
 cmake_dependent_option(ENABLE_IMAGEMAGICK6 "Enable imagemagick 6" ON "LINUX OR FreeBSD OR OpenBSD OR NetBSD OR APPLE OR SunOS" OFF)
 cmake_dependent_option(ENABLE_CHAFA "Enable chafa" ON "ENABLE_IMAGEMAGICK6 OR ENABLE_IMAGEMAGICK7" OFF)
 cmake_dependent_option(ENABLE_ZLIB "Enable zlib" ON "ENABLE_IMAGEMAGICK6 OR ENABLE_IMAGEMAGICK7" OFF)
-cmake_dependent_option(ENABLE_EGL "Enable egl" ON "LINUX OR FreeBSD OR OpenBSD OR NetBSD OR WIN32 OR SunOS" OFF)
-cmake_dependent_option(ENABLE_GLX "Enable glx" ON "LINUX OR FreeBSD OR OpenBSD OR NetBSD OR SunOS" OFF)
+cmake_dependent_option(ENABLE_EGL "Enable egl" ON "LINUX OR FreeBSD OR OpenBSD OR NetBSD OR ANDROID OR WIN32 OR SunOS" OFF)
+cmake_dependent_option(ENABLE_GLX "Enable glx" ON "LINUX OR FreeBSD OR OpenBSD OR NetBSD OR ANDROID OR SunOS" OFF)
 cmake_dependent_option(ENABLE_OSMESA "Enable osmesa" ON "LINUX OR FreeBSD OR OpenBSD OR NetBSD OR SunOS" OFF)
 cmake_dependent_option(ENABLE_OPENCL "Enable opencl" ON "LINUX OR FreeBSD OR OpenBSD OR NetBSD OR WIN32 OR ANDROID OR SunOS" OFF)
 cmake_dependent_option(ENABLE_FREETYPE "Enable freetype" ON "ANDROID" OFF)

src/detection/opengl/opengl_linux.c

@@ -4,6 +4,13 @@
 
 #include <string.h>
 
+#if __ANDROID__ && !defined(FF_HAVE_EGL)
+    // On Android, installing OpenGL headers is enough (mesa-dev)
+    #if __has_include(<EGL/egl.h>)
+        #define FF_HAVE_EGL 1
+    #endif
+#endif
+
 #if defined(FF_HAVE_EGL) || defined(FF_HAVE_GLX) || defined(FF_HAVE_OSMESA)
 #define FF_HAVE_GL 1