evas: add eglfs evas module.

EGL Fullscreen is a module intended to support many proprietary GL driver that come
with custom API to create framebuffer/window. This one is starting by covering Android
with libhybris/hwcomposer. Later on, it should be able to support easily the Raspberry Pi
driver.

At this moment this does not work properly. Activate it at your own risk ! Do not report
bug if you don't know what you are doing :-) A backend for Ecore_Evas will come later on
along with a patch for Ecore_FB to use libinput. Finally a few patch should hopefully
enable this backend to work and compile more easily (relying on proper header detection
and dlopen/dlsym for access to proprietary function).

You can read more about the goal of this patch by reading our wiki at :
https://phab.enlightenment.org/w/boot2efl/

Signed-off-by: Cedric Bail <cedric@osg.samsung.com>

10 files changed, 2245 insertions, 0 deletions

diff --git a/Makefile.am b/Makefile.am
index 8206b161b8..ef7c8a4292 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -188,6 +188,10 @@ if BUILD_ENGINE_FB
 pkgconfig_DATA += pc/evas-fb.pc
 endif
 
+if BUILD_ENGINE_EGLFS
+pkgconfig_DATA += pc/evas-eglfs.pc
+endif
+
 if BUILD_ENGINE_BUFFER
 pkgconfig_DATA += pc/evas-software-buffer.pc
 endif
diff --git a/configure.ac b/configure.ac
index 0768936675..da7e01283b 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1624,6 +1624,19 @@ AC_ARG_ENABLE([fb],
    ],
    [want_fb="no"])
 
+# Eglfs
+AC_ARG_ENABLE([eglfs],
+   [AS_HELP_STRING([--enable-eglfs],[enable hardware accelerated framebuffer access. @<:@default=disabled@:>@])],
+   [
+    if test "x${enableval}" = "xyes" ; then
+       want_eglfs="yes"
+       want_fb="yes"
+    else
+       want_eglfs="no"
+    fi
+   ],
+   [want_eglfs="no"])
+
 # SDL
 AC_ARG_ENABLE([sdl],
    [AS_HELP_STRING([--enable-sdl],[enable SDL support. @<:@default=disabled@:>@])],
@@ -2080,6 +2093,7 @@ EVAS_CHECK_ENGINE([wayland-egl], [${want_evas_engine_wayland_egl}], [no], [Wayla
 EVAS_CHECK_ENGINE([wayland-shm], [${want_wayland}], [no], [Wayland Shm])
 EVAS_CHECK_ENGINE([drm], [${want_drm}], [no], [Drm])
 EVAS_CHECK_ENGINE([gl-drm], [${want_gl_drm}], [no], [OpenGL Drm])
+EVAS_CHECK_ENGINE([eglfs], [${want_eglfs}], [no], [OpenGL Fb])
 
 
 # Software XCB
@@ -2236,6 +2250,7 @@ if test "x$have_evas_engine_gl_xlib" = "xyes" || \
    test "x$have_evas_engine_gl_sdl" = "xyes" || \
    test "x$have_evas_engine_gl_cocoa" = "xyes" || \
    test "x$have_evas_engine_gl_drm" = "xyes" || \
+   test "x$have_evas_engine_eglfs" = "xyes" || \
    test "x$have_evas_engine_wayland_egl" = "xyes"; then
    have_evas_engine_gl_common="yes"
 fi
@@ -2244,6 +2259,7 @@ if test "x$have_evas_engine_gl_xlib" = "xstatic" || \
    test "x$have_evas_engine_gl_sdl" = "xstatic" || \
    test "x$have_evas_engine_gl_cocoa" = "xstatic" || \
    test "x$have_evas_engine_gl_drm" = "xstatic" || \
+   test "x$have_evas_engine_eglfs" = "xstatic" || \
    test "x$have_evas_engine_wayland_egl" = "xstatic"; then
    have_evas_engine_gl_common="yes"
    have_static_evas_engine_gl_common="yes"
@@ -5095,6 +5111,7 @@ pc/eo-js.pc
 pc/efl.pc
 pc/efl-cxx.pc
 pc/evas-fb.pc
+pc/evas-eglfs.pc
 pc/evas-opengl-x11.pc
 pc/evas-opengl-sdl.pc
 pc/evas-opengl-cocoa.pc
diff --git a/m4/evas_check_engine.m4 b/m4/evas_check_engine.m4
index 42ecc892d8..e38589c48a 100644
--- a/m4/evas_check_engine.m4
+++ b/m4/evas_check_engine.m4
@@ -661,6 +661,49 @@ AS_IF([test "x${have_dep}" = "xyes"], [$4], [$5])
 
 ])
 
+dnl use: EVAS_CHECK_ENGINE_DEP_EGLFS(engine, simple, want_static[, ACTION-IF-FOUND[, ACTION-IF-NOT-FOUND]])
+
+AC_DEFUN([EVAS_CHECK_ENGINE_DEP_EGLFS],
+[
+
+requirement=""
+have_dep="no"
+have_hw_dep="no"
+evas_engine_[]$1[]_cflags=""
+evas_engine_[]$1[]_libs=""
+
+if test "x${with_opengl}" = "xes" ; then
+   gl_library="glesv2"
+else
+   AC_MSG_ERROR([We do not support Eglfs without OpenGL ES. Please consider OpenGL ES if you want to use it.])
+fi
+
+PKG_CHECK_EXISTS([egl >= 7.10 ${gl_library}],
+   [
+    have_dep="yes"
+    requirement="egl >= 7.10 ${gl_library}"
+   ],
+   [have_dep="no"])
+
+if test "x${have_dep}" = "xyes" ; then
+   if test "x$3" = "xstatic" ; then
+      requirements_pc_evas="${requirement} ${requirements_pc_evas}"
+      requirements_pc_deps_evas="${requirement} ${requirements_pc_deps_evas}"
+   else
+      PKG_CHECK_MODULES([EGLFS], [${requirement}])
+      evas_engine_[]$1[]_cflags="${EGLFS_CFLAGS}"
+      evas_engine_[]$1[]_libs="${EGLFS_LIBS}"
+      evas_engine_gl_common_libs="$evas_engine_[]$1[]_libdirs -lGLESv2 -lm -lEGL"
+   fi
+fi
+
+AC_SUBST([evas_engine_$1_cflags])
+AC_SUBST([evas_engine_$1_libs])
+
+AS_IF([test "x${have_dep}" = "xyes"], [$4], [$5])
+
+])
+
 
 dnl use: EVAS_ENGINE(name, want_engine, [DEPENDENCY-CHECK-CODE])
 dnl
diff --git a/pc/.gitignore b/pc/.gitignore
index c3422d5f99..ee97ef9620 100644
--- a/pc/.gitignore
+++ b/pc/.gitignore
@@ -44,6 +44,7 @@
 /ethumb_client.pc
 /evas-drm.pc
 /evas-fb.pc
+/evas-eglfs.pc
 /evas-opengl-cocoa.pc
 /evas-opengl-sdl.pc
 /evas-opengl-x11.pc
diff --git a/pc/evas-eglfs.pc.in b/pc/evas-eglfs.pc.in
new file mode 100644
index 0000000000..c8dfc5c8c3
--- /dev/null
+++ b/pc/evas-eglfs.pc.in
@@ -0,0 +1,3 @@
+Name: evas-eglfs
+Description: Evas eglfs engine
+Version: @VERSION@
diff --git a/src/Makefile_Evas.am b/src/Makefile_Evas.am
index 4f5656470b..47642aa300 100644
--- a/src/Makefile_Evas.am
+++ b/src/Makefile_Evas.am
@@ -874,6 +874,9 @@ endif
 if BUILD_ENGINE_GL_DRM
 modules_evas_engines_gl_common_libevas_engine_gl_common_la_CPPFLAGS += @evas_engine_gl_drm_cflags@
 endif
+if BUILD_ENGINE_EGLFS
+modules_evas_engines_gl_common_libevas_engine_gl_common_la_CPPFLAGS += @evas_engine_eglfs_cflags@
+endif
 modules_evas_engines_gl_common_libevas_engine_gl_common_la_LIBADD = @USE_EVAS_LIBS@
 modules_evas_engines_gl_common_libevas_engine_gl_common_la_DEPENDENCIES = @USE_EVAS_INTERNAL_LIBS@
 modules_evas_engines_gl_common_libevas_engine_gl_common_la_LDFLAGS = -module @EFL_LTMODULE_FLAGS@
@@ -1330,6 +1333,45 @@ modules_evas_engines_gl_drm_module_la_LIBTOOLFLAGS = --tag=disable-static
 endif
 endif
 
+if BUILD_ENGINE_EGLFS
+dist_installed_evasmainheaders_DATA += modules/evas/engines/eglfs/Evas_Engine_Eglfs.h
+EGLFS_SOURCES = \
+modules/evas/engines/eglfs/evas_outbuf.c \
+modules/evas/engines/eglfs/evas_engine.c \
+modules/evas/engines/eglfs/evas_engine.h \
+modules/evas/engines/eglfs/Evas_Engine_Eglfs.h
+if EVAS_STATIC_BUILD_EGLFS
+lib_evas_libevas_la_SOURCES += $(EGLFS_SOURCES)
+lib_evas_libevas_la_CPPFLAGS += @evas_engine_eglfs_cflags@
+lib_evas_libevas_la_LIBADD += @evas_engine_eglfs_libs@
+else
+engineeglfspkgdir = $(libdir)/evas/modules/engines/eglfs/$(MODULE_ARCH)
+engineeglfspkg_LTLIBRARIES = modules/evas/engines/eglfs/module.la
+
+# Workaround for broken parallel install support in automake (relink issue)
+# http://debbugs.gnu.org/cgi/bugreport.cgi?bug=7328
+install_engineeglfspkgLTLIBRARIES = install-engineeglfspkgLTLIBRARIES
+$(install_engineeglfspkgLTLIBRARIES): install-libLTLIBRARIES
+
+modules_evas_engines_eglfs_module_la_SOURCES = $(EGLFS_SOURCES)
+modules_evas_engines_eglfs_module_la_CPPFLAGS = -I$(top_builddir)/src/lib/efl \
+-I$(top_srcdir)/src/lib/evas/include \
+-I$(top_srcdir)/src/lib/evas/cserve2 \
+-I$(top_srcdir)/src/modules/evas/engines/eglfs \
+@EVAS_CFLAGS@ \
+@ECORE_DRM_CFLAGS@ \
+@evas_engine_eglfs_cflags@
+modules_evas_engines_eglfs_module_la_LIBADD = \
+@USE_EVAS_LIBS@ \
+@USE_ECORE_DRM_LIBS@ \
+@evas_engine_eglfs_libs@ \
+@USE_EEZE_INTERNAL_LIBS@
+modules_evas_engines_eglfs_module_la_DEPENDENCIES = @USE_EVAS_INTERNAL_LIBS@ @USE_EEZE_INTERNAL_LIBS@ @USE_ECORE_DRM_INTERNAL_LIBS@
+modules_evas_engines_eglfs_module_la_LDFLAGS = -module @EFL_LTMODULE_FLAGS@
+modules_evas_engines_eglfs_module_la_LIBTOOLFLAGS = --tag=disable-static
+endif
+endif
+
 ### Cserve2 binary
 
 if EVAS_CSERVE2
diff --git a/src/modules/evas/engines/eglfs/Evas_Engine_Eglfs.h b/src/modules/evas/engines/eglfs/Evas_Engine_Eglfs.h
new file mode 100644
index 0000000000..7472c7b306
--- /dev/null
+++ b/src/modules/evas/engines/eglfs/Evas_Engine_Eglfs.h
@@ -0,0 +1,45 @@
+#ifndef _EVAS_ENGINE_EGLFS_H
+# define _EVAS_ENGINE_EGLFS_H
+
+typedef enum _Evas_Engine_Info_Eglfs_Swap_Mode
+{
+   EVAS_ENGINE_EGLFS_SWAP_MODE_AUTO = 0,
+   EVAS_ENGINE_EGLFS_SWAP_MODE_FULL = 1,
+   EVAS_ENGINE_EGLFS_SWAP_MODE_COPY = 2,
+   EVAS_ENGINE_EGLFS_SWAP_MODE_DOUBLE = 3,
+   EVAS_ENGINE_EGLFS_SWAP_MODE_TRIPLE = 4,
+   EVAS_ENGINE_EGLFS_SWAP_MODE_QUADRUPLE = 5
+} Evas_Engine_Info_Eglfs_Swap_Mode;
+
+typedef struct _Evas_Engine_Info_Eglfs Evas_Engine_Info_Eglfs;
+
+struct _Evas_Engine_Info_Eglfs
+{
+   /* PRIVATE - don't mess with this baby or evas will poke its tongue out */
+   /* at you and make nasty noises */
+   Evas_Engine_Info magic;
+
+   struct
+     {
+        unsigned int rotation, depth;
+        unsigned int crtc_id, conn_id, buffer_id;
+        unsigned int format, flags;
+
+        Eina_Bool destination_alpha : 1;
+        Eina_Bool vsync : 1;
+        Eina_Bool indirect : 1;
+        unsigned char swap_mode : 4;
+     } info;
+
+   struct
+     {
+        void (*pre_swap)(void *data, Evas *evas);
+        void (*post_swap)(void *data, Evas *evas);
+        void *data;
+     } callback;
+
+   /* non-blocking or blocking mode */
+   Evas_Engine_Render_Mode render_mode;
+};
+
+#endif
diff --git a/src/modules/evas/engines/eglfs/evas_engine.c b/src/modules/evas/engines/eglfs/evas_engine.c
new file mode 100644
index 0000000000..c408375c96
--- /dev/null
+++ b/src/modules/evas/engines/eglfs/evas_engine.c
@@ -0,0 +1,1254 @@
+#include "config.h"
+#include "evas_engine.h"
+#include <wayland-client.h>
+
+#ifdef HAVE_DLSYM
+# include <dlfcn.h>      /* dlopen,dlclose,etc */
+#else
+# error eglfs should not get compiled if dlsym is not found on the system!
+#endif
+
+#ifdef EVAS_CSERVE2
+# include "evas_cs2_private.h"
+#endif
+
+#define EVAS_GL_NO_GL_H_CHECK 1
+#include "Evas_GL.h"
+
+#define EVAS_GL_UPDATE_TILE_SIZE 16
+
+#ifndef EGL_NATIVE_PIXMAP_KHR
+# define EGL_NATIVE_PIXMAP_KHR 0x30b0
+#endif
+
+/* external variables */
+int _evas_engine_eglfs_log_dom = -1;
+int _extn_have_buffer_age = 1;
+
+/* local variables */
+static Eina_Bool initted = EINA_FALSE;
+static int gl_wins = 0;
+
+/* local structures */
+typedef struct _Render_Engine Render_Engine;
+struct _Render_Engine
+{
+   Render_Engine_GL_Generic generic;
+};
+
+typedef struct _Native Native;
+struct _Native
+{
+   Evas_Native_Surface ns;
+   struct wl_buffer *wl_buf;
+   void *egl_surface;
+};
+
+/* local function prototype types */
+typedef void (*_eng_fn)(void);
+typedef _eng_fn (*glsym_func_eng_fn)();
+typedef void (*glsym_func_void)();
+typedef void *(*glsym_func_void_ptr)();
+typedef int (*glsym_func_int)();
+typedef unsigned int (*glsym_func_uint)();
+typedef const char *(*glsym_func_const_char_ptr)();
+
+/* external dynamic loaded Evas_GL function pointers */
+Evas_GL_Common_Image_Call glsym_evas_gl_common_image_ref = NULL;
+Evas_GL_Common_Image_Call glsym_evas_gl_common_image_unref = NULL;
+Evas_GL_Common_Image_Call glsym_evas_gl_common_image_free = NULL;
+Evas_GL_Common_Image_Call glsym_evas_gl_common_image_native_disable = NULL;
+Evas_GL_Common_Image_Call glsym_evas_gl_common_image_native_enable = NULL;
+Evas_GL_Common_Image_New_From_Data glsym_evas_gl_common_image_new_from_data = NULL;
+Evas_GL_Common_Context_Call glsym_evas_gl_common_image_all_unload = NULL;
+Evas_GL_Preload glsym_evas_gl_preload_init = NULL;
+Evas_GL_Preload glsym_evas_gl_preload_shutdown = NULL;
+EVGL_Engine_Call glsym_evgl_engine_shutdown = NULL;
+EVGL_Current_Native_Context_Get_Call glsym_evgl_current_native_context_get = NULL;
+Evas_Gl_Symbols glsym_evas_gl_symbols = NULL;
+
+Evas_GL_Common_Context_New glsym_evas_gl_common_context_new = NULL;
+Evas_GL_Common_Context_Call glsym_evas_gl_common_context_flush = NULL;
+Evas_GL_Common_Context_Call glsym_evas_gl_common_context_free = NULL;
+Evas_GL_Common_Context_Call glsym_evas_gl_common_context_use = NULL;
+Evas_GL_Common_Context_Call glsym_evas_gl_common_context_newframe = NULL;
+Evas_GL_Common_Context_Call glsym_evas_gl_common_context_done = NULL;
+Evas_GL_Common_Context_Resize_Call glsym_evas_gl_common_context_resize = NULL;
+Evas_GL_Common_Buffer_Dump_Call glsym_evas_gl_common_buffer_dump = NULL;
+Evas_GL_Preload_Render_Call glsym_evas_gl_preload_render_lock = NULL;
+Evas_GL_Preload_Render_Call glsym_evas_gl_preload_render_unlock = NULL;
+Evas_GL_Preload_Render_Call glsym_evas_gl_preload_render_relax = NULL;
+
+glsym_func_void_ptr glsym_evas_gl_common_current_context_get = NULL;
+
+/* dynamic loaded local egl function pointers */
+_eng_fn (*glsym_eglGetProcAddress)(const char *a) = NULL;
+void *(*glsym_eglCreateImage)(EGLDisplay a, EGLContext b, EGLenum c, EGLClientBuffer d, const int *e) = NULL;
+void (*glsym_eglDestroyImage)(EGLDisplay a, void *b) = NULL;
+void (*glsym_glEGLImageTargetTexture2DOES)(int a, void *b)  = NULL;
+unsigned int (*glsym_eglSwapBuffersWithDamage)(EGLDisplay a, void *b, const EGLint *d, EGLint c) = NULL;
+unsigned int (*glsym_eglQueryWaylandBufferWL)(EGLDisplay a, struct wl_resource *b, EGLint c, EGLint *d) = NULL;
+
+/* local function prototypes */
+static void gl_symbols(void);
+static void gl_extn_veto(Render_Engine *re);
+
+static void *evgl_eng_display_get(void *data);
+static void *evgl_eng_evas_surface_get(void *data);
+static int evgl_eng_make_current(void *data, void *surface, void *context, int flush);
+static void *evgl_eng_native_window_create(void *data);
+static int evgl_eng_native_window_destroy(void *data, void *native_window);
+static void *evgl_eng_window_surface_create(void *data, void *native_window);
+static int evgl_eng_window_surface_destroy(void *data, void *surface);
+static void *evgl_eng_context_create(void *data, void *share_ctx, Evas_GL_Context_Version version);
+static int evgl_eng_context_destroy(void *data, void *context);
+static const char *evgl_eng_string_get(void *data);
+static void *evgl_eng_proc_address_get(const char *name);
+static int evgl_eng_rotation_angle_get(void *data);
+
+/* function tables - filled in later (func and parent func) */
+static Evas_Func func, pfunc;
+static const EVGL_Interface evgl_funcs =
+{
+   evgl_eng_display_get,
+   evgl_eng_evas_surface_get,
+   evgl_eng_native_window_create,
+   evgl_eng_native_window_destroy,
+   evgl_eng_window_surface_create,
+   evgl_eng_window_surface_destroy,
+   evgl_eng_context_create,
+   evgl_eng_context_destroy,
+   evgl_eng_make_current,
+   evgl_eng_proc_address_get,
+   evgl_eng_string_get,
+   evgl_eng_rotation_angle_get,
+   NULL, // PBuffer
+   NULL, // PBuffer
+   NULL, // OpenGL-ES 1
+   NULL, // OpenGL-ES 1
+   NULL, // OpenGL-ES 1
+   NULL, // native_win_surface_config_get
+};
+
+
+/* local inline functions */
+static inline Outbuf *
+eng_get_ob(Render_Engine *re)
+{
+   return re->generic.software.ob;
+}
+
+/* local functions */
+static void
+gl_symbols(void)
+{
+   static Eina_Bool done = EINA_FALSE;
+
+   if (done) return;
+
+#define LINK2GENERIC(sym) \
+   glsym_##sym = dlsym(RTLD_DEFAULT, #sym);
+
+   // Get function pointer to evas_gl_common that is now provided through the link of GL_Generic.
+   LINK2GENERIC(evas_gl_common_image_all_unload);
+   LINK2GENERIC(evas_gl_common_image_ref);
+   LINK2GENERIC(evas_gl_common_image_unref);
+   LINK2GENERIC(evas_gl_common_image_new_from_data);
+   LINK2GENERIC(evas_gl_common_image_native_disable);
+   LINK2GENERIC(evas_gl_common_image_free);
+   LINK2GENERIC(evas_gl_common_image_native_enable);
+   LINK2GENERIC(evas_gl_common_context_new);
+   LINK2GENERIC(evas_gl_common_context_flush);
+   LINK2GENERIC(evas_gl_common_context_free);
+   LINK2GENERIC(evas_gl_common_context_use);
+   LINK2GENERIC(evas_gl_common_context_newframe);
+   LINK2GENERIC(evas_gl_common_context_done);
+   LINK2GENERIC(evas_gl_common_context_resize);
+   LINK2GENERIC(evas_gl_common_buffer_dump);
+   LINK2GENERIC(evas_gl_preload_render_lock);
+   LINK2GENERIC(evas_gl_preload_render_unlock);
+   LINK2GENERIC(evas_gl_preload_render_relax);
+   LINK2GENERIC(evas_gl_preload_init);
+   LINK2GENERIC(evas_gl_preload_shutdown);
+   LINK2GENERIC(evgl_engine_shutdown);
+   LINK2GENERIC(evas_gl_symbols);
+
+#define FINDSYM(dst, sym, typ) \
+   if (glsym_eglGetProcAddress) { \
+      if (!dst) dst = (typ)glsym_eglGetProcAddress(sym); \
+   } else { \
+      if (!dst) dst = (typ)dlsym(RTLD_DEFAULT, sym); \
+   }
+
+   FINDSYM(glsym_eglGetProcAddress, "eglGetProcAddressKHR", glsym_func_eng_fn);
+   FINDSYM(glsym_eglGetProcAddress, "eglGetProcAddressEXT", glsym_func_eng_fn);
+   FINDSYM(glsym_eglGetProcAddress, "eglGetProcAddressARB", glsym_func_eng_fn);
+   FINDSYM(glsym_eglGetProcAddress, "eglGetProcAddress", glsym_func_eng_fn);
+
+   glsym_evas_gl_symbols((void*)glsym_eglGetProcAddress);
+
+   FINDSYM(glsym_eglCreateImage, "eglCreateImageKHR", glsym_func_void_ptr);
+   FINDSYM(glsym_eglCreateImage, "eglCreateImageEXT", glsym_func_void_ptr);
+   FINDSYM(glsym_eglCreateImage, "eglCreateImageARB", glsym_func_void_ptr);
+   FINDSYM(glsym_eglCreateImage, "eglCreateImage", glsym_func_void_ptr);
+
+   FINDSYM(glsym_eglDestroyImage, "eglDestroyImageKHR", glsym_func_void);
+   FINDSYM(glsym_eglDestroyImage, "eglDestroyImageEXT", glsym_func_void);
+   FINDSYM(glsym_eglDestroyImage, "eglDestroyImageARB", glsym_func_void);
+   FINDSYM(glsym_eglDestroyImage, "eglDestroyImage", glsym_func_void);
+
+   FINDSYM(glsym_glEGLImageTargetTexture2DOES,
+           "glEGLImageTargetTexture2DOES", glsym_func_void);
+
+   FINDSYM(glsym_eglSwapBuffersWithDamage, "eglSwapBuffersWithDamageEXT",
+           glsym_func_uint);
+   FINDSYM(glsym_eglSwapBuffersWithDamage, "eglSwapBuffersWithDamageINTEL",
+           glsym_func_uint);
+   FINDSYM(glsym_eglSwapBuffersWithDamage, "eglSwapBuffersWithDamage",
+           glsym_func_uint);
+
+   FINDSYM(glsym_eglQueryWaylandBufferWL, "eglQueryWaylandBufferWL",
+           glsym_func_uint);
+
+   done = EINA_TRUE;
+}
+
+static void
+gl_extn_veto(Render_Engine *re)
+{
+   const char *str = NULL;
+
+   str = eglQueryString(eng_get_ob(re)->egl.disp, EGL_EXTENSIONS);
+   if (str)
+     {
+        const char *s = NULL;
+
+        if (getenv("EVAS_GL_INFO")) printf("EGL EXTN:\n%s\n", str);
+
+        // Disable Partial Rendering
+        s = getenv("EVAS_GL_PARTIAL_DISABLE");
+        if ((s) && (atoi(s)))
+          {
+             _extn_have_buffer_age = 0;
+             glsym_eglSwapBuffersWithDamage = NULL;
+          }
+        if (!strstr(str, "EGL_EXT_buffer_age")) _extn_have_buffer_age = 0;
+        if (!strstr(str, "EGL_EXT_swap_buffers_with_damage"))
+          glsym_eglSwapBuffersWithDamage = NULL;
+     }
+   else
+     {
+        if (getenv("EVAS_GL_INFO")) printf("NO EGL EXTN!\n");
+        _extn_have_buffer_age = 0;
+     }
+}
+
+static void *
+evgl_eng_display_get(void *data)
+{
+   Render_Engine *re;
+
+   re = (Render_Engine *)data;
+   if (!re)
+     {
+        ERR("Invalid Render Engine Data!");
+        return NULL;
+     }
+
+   if (eng_get_ob(re))
+     return (void *)eng_get_ob(re)->egl.disp;
+   else
+     return NULL;
+}
+
+static void *
+evgl_eng_evas_surface_get(void *data)
+{
+   Render_Engine *re;
+
+   re = (Render_Engine *)data;
+   if (!re)
+     {
+        ERR("Invalid Render Engine Data!");
+        return NULL;
+     }
+
+   if (eng_get_ob(re))
+     return (void *)eng_get_ob(re)->egl.surface[0];
+   else
+     return NULL;
+}
+
+static int
+evgl_eng_make_current(void *data, void *surface, void *context, int flush)
+{
+   Render_Engine *re;
+   EGLContext ctx;
+   EGLSurface sfc;
+   EGLDisplay dpy;
+   int ret = 0;
+
+   re = (Render_Engine *)data;
+   if (!re)
+     {
+        ERR("Invalid Render Engine Data!");
+        return 0;
+     }
+
+   dpy = eng_get_ob(re)->egl.disp;
+   ctx = (EGLContext)context;
+   sfc = (EGLSurface)surface;
+
+   if ((!context) && (!surface))
+     {
+        ret = eglMakeCurrent(dpy, EGL_NO_SURFACE,
+                             EGL_NO_SURFACE, EGL_NO_CONTEXT);
+        if (!ret)
+          {
+             ERR("eglMakeCurrent() failed! Error Code=%#x", eglGetError());
+             return 0;
+          }
+
+        return 1;
+     }
+
+   if ((eglGetCurrentContext() != ctx) ||
+       (eglGetCurrentSurface(EGL_READ) != sfc) ||
+       (eglGetCurrentSurface(EGL_DRAW) != sfc) )
+     {
+        if (flush) evas_outbuf_use(NULL);
+
+        ret = eglMakeCurrent(dpy, sfc, sfc, ctx);
+        if (!ret)
+          {
+             ERR("eglMakeCurrent() failed! Error Code=%#x", eglGetError());
+             return 0;
+          }
+     }
+
+   return 1;
+}
+
+static void _hwc_present_cb(void *user_data, struct ANativeWindow *window,
+                            struct ANativeWindowBuffer *buffer)
+{
+
+}
+
+static void *
+evgl_eng_native_window_create(void *data)
+{
+   Render_Engine *re;
+   Evas_Engine_Info_Eglfs *info;
+   struct ANativeWindow *native_window;
+
+   re = (Render_Engine *)data;
+   if (!re)
+     {
+        ERR("Invalid Render Engine Data!");
+        return NULL;
+     }
+
+   info = eng_get_ob(re)->info;
+   if (!info)
+     {
+        ERR("Invalid Evas Engine Eglfs Info!");
+        return NULL;
+     }
+   EGLNativeWindowType win;
+   win = create_hwcomposernativewindow();
+   return (void *)win;
+}
+
+static int
+evgl_eng_native_window_destroy(void *data, void *native_window)
+{
+   Render_Engine *re = (Render_Engine *)data;
+
+   if (!re)
+     {
+        ERR("Invalid Render Engine Data!");
+        return 0;
+     }
+
+   if (!native_window)
+     {
+        ERR("Invalid native surface.");
+        return 0;
+     }
+
+   HWCNativeWindowDestroy(native_window);
+
+   return 1;
+}
+
+static void *
+evgl_eng_window_surface_create(void *data, void *native_window)
+{
+   Render_Engine *re;
+   EGLSurface surface = EGL_NO_SURFACE;
+
+   re = (Render_Engine *)data;
+   if (!re)
+     {
+        ERR("Invalid Render Engine Data!");
+        return NULL;
+     }
+
+   // Create resource surface for EGL
+   surface = eglCreateWindowSurface(eng_get_ob(re)->egl.disp,
+                                    eng_get_ob(re)->egl.config,
+                                    (EGLNativeWindowType)native_window,
+                                    NULL);
+   if (!surface)
+     {
+        ERR("Creating window surface failed. Error: %#x.", eglGetError());
+        return NULL;
+     }
+
+   return (void *)surface;
+}
+
+static int
+evgl_eng_window_surface_destroy(void *data, void *surface)
+{
+   Render_Engine *re;
+   EGLBoolean ret = EGL_FALSE;
+
+   re = (Render_Engine *)data;
+   if (!re)
+     {
+        ERR("Invalid Render Engine Data!");
+        return 0;
+     }
+
+   if (!surface)
+     {
+        ERR("Invalid surface.");
+        return 0;
+     }
+
+   ret = eglDestroySurface(eng_get_ob(re)->egl.disp, (EGLSurface)surface);
+   if (ret == EGL_TRUE) return 1;
+
+   return 0;
+}
+
+static void *
+evgl_eng_context_create(void *data, void *share_ctx, Evas_GL_Context_Version version)
+{
+   Render_Engine *re;
+   EGLContext context = EGL_NO_CONTEXT;
+   int context_attrs[3];
+
+   re = (Render_Engine *)data;
+   if (!re)
+     {
+        ERR("Invalid Render Engine Data!");
+        return NULL;
+     }
+
+   if (version != EVAS_GL_GLES_2_X)
+     {
+        ERR("This engine only supports OpenGL-ES 2.0 contexts for now!");
+        return NULL;
+     }
+
+   context_attrs[0] = EGL_CONTEXT_CLIENT_VERSION;
+   context_attrs[1] = 2;
+   context_attrs[2] = EGL_NONE;
+
+   // Share context already assumes that it's sharing with evas' context
+   if (share_ctx)
+     {
+        context = eglCreateContext(eng_get_ob(re)->egl.disp,
+                                   eng_get_ob(re)->egl.config,
+                                   (EGLContext)share_ctx,
+                                   context_attrs);
+     }
+   else
+     {
+        context = eglCreateContext(eng_get_ob(re)->egl.disp,
+                                   eng_get_ob(re)->egl.config,
+                                   eng_get_ob(re)->egl.context[0], // Evas' GL Context
+                                   context_attrs);
+     }
+
+   if (!context)
+     {
+        ERR("eglMakeCurrent() failed! Error Code=%#x", eglGetError());
+        return NULL;
+     }
+
+   return (void *)context;
+}
+
+static int
+evgl_eng_context_destroy(void *data, void *context)
+{
+   Render_Engine *re;
+   EGLBoolean ret = EGL_FALSE;
+
+   re = (Render_Engine *)data;
+   if ((!re) || (!context))
+     {
+        ERR("Invalid Render Input Data. Engine: %p, Context: %p",
+            data, context);
+        return 0;
+     }
+
+   ret = eglDestroyContext(eng_get_ob(re)->egl.disp, (EGLContext)context);
+   if (ret == EGL_TRUE) return 1;
+
+   return 0;
+}
+
+static const char *
+evgl_eng_string_get(void *data)
+{
+   Render_Engine *re;
+
+   re = (Render_Engine *)data;
+   if (!re)
+     {
+        ERR("Invalid Render Engine Data!");
+        return NULL;
+     }
+
+   return eglQueryString(eng_get_ob(re)->egl.disp, EGL_EXTENSIONS);
+}
+
+static void *
+evgl_eng_proc_address_get(const char *name)
+{
+   if (glsym_eglGetProcAddress) return glsym_eglGetProcAddress(name);
+   return dlsym(RTLD_DEFAULT, name);
+}
+
+static int
+evgl_eng_rotation_angle_get(void *data)
+{
+   Render_Engine *re;
+
+   re = (Render_Engine *)data;
+   if (!re)
+     {
+        ERR("Invalid Render Engine Data!");
+        return 0;
+     }
+
+   if ((eng_get_ob(re)) && (eng_get_ob(re)->gl_context))
+     return eng_get_ob(re)->gl_context->rot;
+   else
+     {
+        ERR("Unable to retrieve rotation angle.");
+        return 0;
+     }
+}
+
+static Eina_Bool
+eng_preload_make_current(void *data, void *doit)
+{
+   Outbuf *ob;
+
+   ob = (Outbuf *)data;
+   if (!ob) return EINA_FALSE;
+
+   if (doit)
+     {
+        if (!eglMakeCurrent(ob->egl.disp, ob->egl.surface[0],
+                            ob->egl.surface[0], ob->egl.context[0]))
+          return EINA_FALSE;
+     }
+   else
+     {
+        if (!eglMakeCurrent(ob->egl.disp, EGL_NO_SURFACE,
+                            EGL_NO_SURFACE, EGL_NO_CONTEXT))
+          return EINA_FALSE;
+     }
+
+   return EINA_TRUE;
+}
+
+static void
+_re_winfree(Render_Engine *re)
+{
+   if (!re) return;
+   if (!eng_get_ob(re)->surf) return;
+   glsym_evas_gl_preload_render_relax(eng_preload_make_current, eng_get_ob(re));
+   evas_outbuf_unsurf(eng_get_ob(re));
+}
+
+static void
+_native_cb_bind(void *data EINA_UNUSED, void *image)
+{
+   Evas_GL_Image *img;
+   Native *n;
+
+   if (!(img = image)) return;
+   if (!(n = img->native.data)) return;
+
+   if (n->ns.type == EVAS_NATIVE_SURFACE_WL)
+     {
+        if (n->egl_surface)
+          {
+             if (glsym_glEGLImageTargetTexture2DOES)
+               {
+                  glsym_glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, n->egl_surface);
+                  if (eglGetError() != EGL_SUCCESS)
+                    ERR("glEGLImageTargetTexture2DOES() failed.");
+               }
+             else
+               ERR("Try glEGLImageTargetTexture2DOES on EGL with no support");
+          }
+     }
+   else if (n->ns.type == EVAS_NATIVE_SURFACE_OPENGL)
+     glBindTexture(GL_TEXTURE_2D, n->ns.data.opengl.texture_id);
+
+   /* TODO: NATIVE_SURFACE_TBM and NATIVE_SURFACE_EVASGL */
+}
+
+static void
+_native_cb_unbind(void *data EINA_UNUSED, void *image)
+{
+   Evas_GL_Image *img;
+   Native *n;
+
+   if (!(img = image)) return;
+   if (!(n = img->native.data)) return;
+
+   else if (n->ns.type == EVAS_NATIVE_SURFACE_OPENGL)
+     glBindTexture(GL_TEXTURE_2D, 0);
+
+   /* TODO: NATIVE_SURFACE_TBM and NATIVE_SURFACE_EVASGL */
+}
+
+static void
+_native_cb_free(void *data, void *image)
+{
+   Render_Engine *re;
+   Outbuf *ob;
+   Evas_GL_Image *img;
+   Native *n;
+   uint32_t texid;
+   void *wlid;
+
+   if (!(re = (Render_Engine *)data)) return;
+   if (!(img = image)) return;
+   if (!(n = img->native.data)) return;
+   if (!(ob = eng_get_ob(re))) return;
+
+   if (n->ns.type == EVAS_NATIVE_SURFACE_WL)
+     {
+        wlid = (void*)n->wl_buf;
+        eina_hash_del(ob->gl_context->shared->native_wl_hash, &wlid, img);
+        if (n->egl_surface)
+          {
+             if (glsym_eglDestroyImage)
+               {
+                  glsym_eglDestroyImage(ob->egl.disp, n->egl_surface);
+                  if (eglGetError() != EGL_SUCCESS)
+                    ERR("eglDestroyImage() failed.");
+               }
+             else
+               ERR("Try eglDestroyImage on EGL with  no support");
+          }
+     }
+   else if (n->ns.type == EVAS_NATIVE_SURFACE_OPENGL)
+     {
+        texid = n->ns.data.opengl.texture_id;
+        eina_hash_del(ob->gl_context->shared->native_tex_hash, &texid, img);
+     }
+
+   img->native.data = NULL;
+   img->native.func.data = NULL;
+   img->native.func.bind = NULL;
+   img->native.func.unbind = NULL;
+   img->native.func.free = NULL;
+
+   free(n);
+}
+
+/* engine specific override functions */
+static void *
+eng_info(Evas *eo_e EINA_UNUSED)
+{
+   Evas_Engine_Info_Eglfs *info;
+
+   /* try to allocate space for our engine info */
+   if (!(info = calloc(1, sizeof(Evas_Engine_Info_Eglfs))))
+     return NULL;
+
+   info->magic.magic = rand();
+   info->render_mode = EVAS_RENDER_MODE_BLOCKING;
+
+   return info;
+}
+
+static void
+eng_info_free(Evas *eo_e EINA_UNUSED, void *in)
+{
+   Evas_Engine_Info_Eglfs *info;
+
+   if ((info = (Evas_Engine_Info_Eglfs *)in))
+     free(info);
+}
+
+static int
+eng_setup(Evas *evas, void *in)
+{
+   Evas_Engine_Info_Eglfs *info;
+   Evas_Public_Data *epd;
+   Render_Engine *re;
+   Render_Engine_Swap_Mode swap_mode = MODE_FULL;
+   const char *s = NULL;
+
+   /* try to cast to our engine info structure */
+   if (!(info = (Evas_Engine_Info_Eglfs *)in)) return 0;
+
+   /* try to get the evas public data */
+   if (!(epd = eo_data_scope_get(evas, EVAS_CANVAS_CLASS))) return 0;
+
+   s = getenv("EVAS_GL_SWAP_MODE");
+   if (s)
+     {
+        if ((!strcasecmp(s, "full")) || (!strcasecmp(s, "f")))
+          swap_mode = MODE_FULL;
+        else if ((!strcasecmp(s, "copy")) || (!strcasecmp(s, "c")))
+          swap_mode = MODE_COPY;
+        else if ((!strcasecmp(s, "double")) ||
+                 (!strcasecmp(s, "d")) || (!strcasecmp(s, "2")))
+          swap_mode = MODE_DOUBLE;
+        else if ((!strcasecmp(s, "triple")) ||
+                 (!strcasecmp(s, "t")) || (!strcasecmp(s, "3")))
+          swap_mode = MODE_TRIPLE;
+        else if ((!strcasecmp(s, "quadruple")) ||
+                 (!strcasecmp(s, "q")) || (!strcasecmp(s, "4")))
+          swap_mode = MODE_QUADRUPLE;
+     }
+   else
+     {
+// in most gl implementations - egl and glx here that we care about the TEND
+// to either swap or copy backbuffer and front buffer, but strictly that is
+// not true. technically backbuffer content is totally undefined after a swap
+// and thus you MUST re-render all of it, thus MODE_FULL
+        swap_mode = MODE_FULL;
+// BUT... reality is that lmost every implementation copies or swaps so
+// triple buffer mode can be used as it is a superset of double buffer and
+// copy (though using those explicitly is more efficient). so let's play with
+// triple buffer mdoe as a default and see.
+//        re->mode = MODE_TRIPLE;
+// XXX: note - the above seems to break on some older intel chipsets and
+// drivers. it seems we CANT depend on backbuffer staying around. bugger!
+        switch (info->info.swap_mode)
+          {
+           case EVAS_ENGINE_EGLFS_SWAP_MODE_FULL:
+             swap_mode = MODE_FULL;
+             break;
+           case EVAS_ENGINE_EGLFS_SWAP_MODE_COPY:
+             swap_mode = MODE_COPY;
+             break;
+           case EVAS_ENGINE_EGLFS_SWAP_MODE_DOUBLE:
+             swap_mode = MODE_DOUBLE;
+             break;
+           case EVAS_ENGINE_EGLFS_SWAP_MODE_TRIPLE:
+             swap_mode = MODE_TRIPLE;
+             break;
+           case EVAS_ENGINE_EGLFS_SWAP_MODE_QUADRUPLE:
+             swap_mode = MODE_QUADRUPLE;
+             break;
+           default:
+             swap_mode = MODE_AUTO;
+             break;
+          }
+     }
+
+   if (!(re = epd->engine.data.output))
+     {
+        Outbuf *ob;
+        Render_Engine_Merge_Mode merge_mode = MERGE_BOUNDING;
+
+        if (!initted)
+          {
+             evas_common_init();
+             glsym_evas_gl_preload_init();
+          }
+
+        if (!(re = calloc(1, sizeof(Render_Engine)))) return 0;
+
+        /* try to create new outbuf */
+        ob = evas_outbuf_new(info, epd->output.w, epd->output.h, swap_mode);
+        if (!ob)
+          {
+             free(re);
+             return 0;
+          }
+
+        ob->evas = evas;
+
+        if (!evas_render_engine_gl_generic_init(&re->generic, ob,
+                                                evas_outbuf_buffer_state_get,
+                                                evas_outbuf_rot_get,
+                                                evas_outbuf_reconfigure,
+                                                evas_outbuf_update_region_first_rect,
+                                                evas_outbuf_update_region_new,
+                                                evas_outbuf_update_region_push,
+                                                evas_outbuf_update_region_free,
+                                                NULL,
+                                                evas_outbuf_flush,
+                                                evas_outbuf_free,
+                                                evas_outbuf_use,
+                                                evas_outbuf_gl_context_get,
+                                                evas_outbuf_egl_display_get,
+                                                evas_outbuf_gl_context_new,
+                                                evas_outbuf_gl_context_use,
+                                                &evgl_funcs, ob->w, ob->h))
+          {
+             /* free outbuf */
+
+             evas_outbuf_free(ob);
+             free(re);
+             return 0;
+          }
+
+        epd->engine.data.output = re;
+        gl_wins++;
+
+        s = getenv("EVAS_GL_PARTIAL_MERGE");
+        if (s)
+          {
+             if ((!strcmp(s, "bounding")) || (!strcmp(s, "b")))
+               merge_mode = MERGE_BOUNDING;
+             else if ((!strcmp(s, "full")) || (!strcmp(s, "f")))
+               merge_mode = MERGE_FULL;
+          }
+
+        evas_render_engine_software_generic_merge_mode_set(&re->generic.software, merge_mode);
+
+        if (!initted)
+          {
+             gl_extn_veto(re);
+             initted = EINA_TRUE;
+          }
+     }
+   else
+     {
+        if (eng_get_ob(re) && _re_wincheck(eng_get_ob(re)))
+          {
+             if ((info->info.depth != eng_get_ob(re)->depth) ||
+                 (info->info.destination_alpha != eng_get_ob(re)->destination_alpha))
+               {
+                  Outbuf *ob, *ob_old;
+
+                  ob_old = re->generic.software.ob;
+                  re->generic.software.ob = NULL;
+                  gl_wins--;
+
+                  ob = evas_outbuf_new(info, epd->output.w, epd->output.h, swap_mode);
+                  if (!ob)
+                    {
+                       if (ob_old) evas_outbuf_free(ob_old);
+                       free(re);
+                       return 0;
+                    }
+
+                  evas_outbuf_use(ob);
+                  if (ob_old) evas_outbuf_free(ob_old);
+
+                  ob->evas = evas;
+
+                  evas_render_engine_software_generic_update(&re->generic.software, ob,
+                                                             epd->output.w, epd->output.h);
+
+                  gl_wins++;
+               }
+             else if ((eng_get_ob(re)->w != epd->output.w) ||
+                      (eng_get_ob(re)->h != epd->output.h) ||
+                      (info->info.rotation != eng_get_ob(re)->rotation))
+               {
+                  evas_outbuf_reconfigure(eng_get_ob(re),
+                                          epd->output.w, epd->output.h,
+                                          info->info.rotation,
+                                          info->info.depth);
+               }
+          }
+     }
+
+   if (!eng_get_ob(re))
+     {
+        free(re);
+        return 0;
+     }
+
+   if (!epd->engine.data.output)
+     {
+        if (eng_get_ob(re))
+          {
+             evas_outbuf_free(eng_get_ob(re));
+             gl_wins--;
+          }
+        free(re);
+        return 0;
+     }
+
+   if (re->generic.software.tb)
+     evas_common_tilebuf_free(re->generic.software.tb);
+   re->generic.software.tb =
+     evas_common_tilebuf_new(epd->output.w, epd->output.h);
+   if (re->generic.software.tb)
+     evas_common_tilebuf_set_tile_size(re->generic.software.tb,
+                                       TILESIZE, TILESIZE);
+
+   if (re->generic.software.tb)
+     evas_render_engine_software_generic_tile_strict_set(&re->generic.software, EINA_TRUE);
+
+   if (!epd->engine.data.context)
+     {
+        epd->engine.data.context =
+           epd->engine.func->context_new(epd->engine.data.output);
+     }
+
+   evas_outbuf_use(eng_get_ob(re));
+
+   return 1;
+}
+
+static void
+eng_output_free(void *data)
+{
+   Render_Engine *re;
+
+   re = (Render_Engine *)data;
+   if (re)
+     {
+        glsym_evas_gl_preload_render_relax(eng_preload_make_current, eng_get_ob(re));
+
+        if (gl_wins == 1) glsym_evgl_engine_shutdown(re);
+
+        /* NB: evas_render_engine_software_generic_clean() frees ob */
+        evas_render_engine_software_generic_clean(&re->generic.software);
+
+        gl_wins--;
+
+        free(re);
+     }
+
+   if ((initted == EINA_TRUE) && (gl_wins == 0))
+     {
+        glsym_evas_gl_preload_shutdown();
+        evas_common_shutdown();
+        initted = EINA_FALSE;
+     }
+}
+
+static Eina_Bool
+eng_canvas_alpha_get(void *data, void *info EINA_UNUSED)
+{
+   Render_Engine *re;
+
+   re = (Render_Engine *)data;
+   if (!re) return EINA_FALSE;
+
+   return eng_get_ob(re)->destination_alpha;
+}
+
+static void
+eng_output_dump(void *data)
+{
+   Render_Engine *re;
+
+   re = (Render_Engine *)data;
+   if (!re) return;
+
+   evas_common_image_image_all_unload();
+   evas_common_font_font_all_unload();
+   glsym_evas_gl_common_image_all_unload(eng_get_ob(re)->gl_context);
+   _re_winfree(re);
+}
+
+static void *
+eng_image_native_set(void *data, void *image, void *native)
+{
+   Render_Engine *re;
+   Outbuf *ob;
+   Native *n;
+   Evas_Native_Surface *ns;
+   Evas_GL_Image *img, *img2;
+   unsigned int tex = 0, fbo = 0;
+   uint32_t texid;
+   void *wlid, *wl_buf = NULL;
+
+   re = (Render_Engine *)data;
+   if (!re) return NULL;
+
+   ob = eng_get_ob(re);
+   if (!ob) return NULL;
+
+   ns = native;
+
+   if (!(img = image))
+     {
+        if ((ns) && (ns->type == EVAS_NATIVE_SURFACE_OPENGL))
+          {
+             img =
+               glsym_evas_gl_common_image_new_from_data(ob->gl_context,
+                                                        ns->data.opengl.w,
+                                                        ns->data.opengl.h,
+                                                        NULL, 1,
+                                                        EVAS_COLORSPACE_ARGB8888);
+          }
+        else
+          return NULL;
+     }
+
+   if (ns)
+     {
+        if (ns->type == EVAS_NATIVE_SURFACE_WL)
+          {
+             wl_buf = ns->data.wl.legacy_buffer;
+             if (img->native.data)
+               {
+                  Evas_Native_Surface *ens;
+
+                  ens = img->native.data;
+                  if (ens->data.wl.legacy_buffer == wl_buf)
+                    return img;
+               }
+          }
+        else if (ns->type == EVAS_NATIVE_SURFACE_OPENGL)
+          {
+             tex = ns->data.opengl.texture_id;
+             fbo = ns->data.opengl.framebuffer_id;
+             if (img->native.data)
+               {
+                  Evas_Native_Surface *ens;
+
+                  ens = img->native.data;
+                  if ((ens->data.opengl.texture_id == tex) &&
+                      (ens->data.opengl.framebuffer_id == fbo))
+                     return img;
+               }
+          }
+     }
+
+   if ((!ns) && (!img->native.data)) return img;
+
+   evas_outbuf_use(ob);
+
+   if (img->native.data)
+     {
+        if (img->native.func.free)
+          img->native.func.free(img->native.func.data, img);
+        glsym_evas_gl_common_image_native_disable(img);
+     }
+
+   if (!ns) return img;
+
+   if (ns->type == EVAS_NATIVE_SURFACE_WL)
+     {
+        wlid = wl_buf;
+        img2 = eina_hash_find(ob->gl_context->shared->native_wl_hash, &wlid);
+        if (img2 == img) return img;
+        if (img2)
+          {
+             if((n = img2->native.data))
+               {
+                  glsym_evas_gl_common_image_ref(img2);
+                  glsym_evas_gl_common_image_free(img);
+                  return img2;
+               }
+          }
+     }
+   else if (ns->type == EVAS_NATIVE_SURFACE_OPENGL)
+     {
+        texid = tex;
+        img2 = eina_hash_find(ob->gl_context->shared->native_tex_hash, &texid);
+        if (img2 == img) return img;
+        if (img2)
+          {
+             if ((n = img2->native.data))
+               {
+                  glsym_evas_gl_common_image_ref(img2);
+                  glsym_evas_gl_common_image_free(img);
+                  return img2;
+               }
+          }
+     }
+
+   img2 = glsym_evas_gl_common_image_new_from_data(ob->gl_context, img->w,
+                                                   img->h, NULL, img->alpha,
+                                                   EVAS_COLORSPACE_ARGB8888);
+   glsym_evas_gl_common_image_free(img);
+
+   if (!(img = img2)) return NULL;
+
+   if (ns->type == EVAS_NATIVE_SURFACE_WL)
+     {
+        if (native)
+          {
+             if ((n = calloc(1, sizeof(Native))))
+               {
+                  EGLint attribs[3];
+                  int format, yinvert = 1;
+
+                  glsym_eglQueryWaylandBufferWL(ob->egl.disp, wl_buf,
+                                                EGL_TEXTURE_FORMAT, &format);
+                  if ((format != EGL_TEXTURE_RGB) &&
+                      (format != EGL_TEXTURE_RGBA))
+                    {
+                       ERR("eglQueryWaylandBufferWL() %d format is not supported ", format);
+                       glsym_evas_gl_common_image_free(img);
+                       free(n);
+                       return NULL;
+                    }
+
+                  attribs[0] = EGL_WAYLAND_PLANE_WL;
+                  attribs[1] = 0; //if plane is 1 then 0, if plane is 2 then 1
+                  attribs[2] = EGL_NONE;
+
+                  memcpy(&(n->ns), ns, sizeof(Evas_Native_Surface));
+                  glsym_eglQueryWaylandBufferWL(ob->egl.disp, wl_buf,
+                                                EGL_WAYLAND_Y_INVERTED_WL,
+                                                &yinvert);
+                  eina_hash_add(ob->gl_context->shared->native_wl_hash,
+                                &wlid, img);
+
+                  n->wl_buf = wl_buf;
+                  if (glsym_eglCreateImage)
+                    n->egl_surface = glsym_eglCreateImage(ob->egl.disp,
+                                                          NULL,
+                                                          EGL_WAYLAND_BUFFER_WL,
+                                                          wl_buf, attribs);
+                  else
+                    {
+                       ERR("Try eglCreateImage on EGL with no support");
+                       eina_hash_del(ob->gl_context->shared->native_wl_hash,
+                                     &wlid, img);
+                       glsym_evas_gl_common_image_free(img);
+                       free(n);
+                       return NULL;
+                    }
+
+                  if (!n->egl_surface)
+                    {
+                       ERR("eglCreatePixmapSurface() for %p failed", wl_buf);
+                       eina_hash_del(ob->gl_context->shared->native_wl_hash,
+                                     &wlid, img);
+                       glsym_evas_gl_common_image_free(img);
+                       free(n);
+                       return NULL;
+                    }
+
+                  //XXX: workaround for mesa-10.2.8
+                  // mesa's eglQueryWaylandBufferWL() with EGL_WAYLAND_Y_INVERTED_WL works incorrect.
+                  //img->native.yinvert = yinvert;
+                  img->native.yinvert = 1;
+                  img->native.loose = 0;
+                  img->native.data = n;
+                  img->native.func.data = re;
+                  img->native.func.bind = _native_cb_bind;
+                  img->native.func.unbind = _native_cb_unbind;
+                  img->native.func.free = _native_cb_free;
+                  img->native.target = GL_TEXTURE_2D;
+                  img->native.mipmap = 0;
+
+                  glsym_evas_gl_common_image_native_enable(img);
+               }
+          }
+     }
+   else if (ns->type == EVAS_NATIVE_SURFACE_OPENGL)
+     {
+        if (native)
+          {
+             if ((n = calloc(1, sizeof(Native))))
+               {
+                  memcpy(&(n->ns), ns, sizeof(Evas_Native_Surface));
+                  eina_hash_add(ob->gl_context->shared->native_tex_hash,
+                                &texid, img);
+
+                  n->egl_surface = 0;
+
+                  img->native.yinvert = 0;
+                  img->native.loose = 0;
+                  img->native.data = n;
+                  img->native.func.data = re;
+                  img->native.func.bind = _native_cb_bind;
+                  img->native.func.unbind = _native_cb_unbind;
+                  img->native.func.free = _native_cb_free;
+                  img->native.target = GL_TEXTURE_2D;
+                  img->native.mipmap = 0;
+
+                  glsym_evas_gl_common_image_native_enable(img);
+               }
+          }
+     }
+
+   /* TODO: NATIVE_SURFACE_TBM and NATIVE_SURFACE_EVASGL */
+
+   return img;
+}
+
+/* module api functions */
+static int
+module_open(Evas_Module *em)
+{
+   /* check for valid evas module */
+   if (!em) return 0;
+
+   /* get whatever engine module we inherit from */
+   if (!_evas_module_engine_inherit(&pfunc, "gl_generic")) return 0;
+
+   /* try to create eina logging domain */
+   if (_evas_engine_eglfs_log_dom < 0)
+     {
+        _evas_engine_eglfs_log_dom =
+          eina_log_domain_register("evas-eglfs", EVAS_DEFAULT_LOG_COLOR);
+     }
+
+   /* if we could not create a logging domain, error out */
+   if (_evas_engine_eglfs_log_dom < 0)
+     {
+        EINA_LOG_ERR("Can not create a module log domain.");
+        return 0;
+     }
+
+   /* store it for later use */
+   func = pfunc;
+
+   /* now to override methods */
+   EVAS_API_OVERRIDE(info, &func, eng_);
+   EVAS_API_OVERRIDE(info_free, &func, eng_);
+   EVAS_API_OVERRIDE(setup, &func, eng_);
+   EVAS_API_OVERRIDE(canvas_alpha_get, &func, eng_);
+   EVAS_API_OVERRIDE(output_free, &func, eng_);
+   EVAS_API_OVERRIDE(output_dump, &func, eng_);
+   EVAS_API_OVERRIDE(image_native_set, &func, eng_);
+
+   setenv("EGL_PLATFORM", "fbdev", 1);
+
+   gl_symbols();
+
+   /* now advertise out own api */
+   em->functions = (void *)(&func);
+
+   return 1;
+}
+
+static void
+module_close(Evas_Module *em EINA_UNUSED)
+{
+   /* unregister the eina log domain for this engine */
+   eina_log_domain_unregister(_evas_engine_eglfs_log_dom);
+   _evas_engine_eglfs_log_dom = -1;
+}
+
+static Evas_Module_Api evas_modapi =
+{
+   EVAS_MODULE_API_VERSION, "eglfs", "none", { module_open, module_close }
+};
+
+EVAS_MODULE_DEFINE(EVAS_MODULE_TYPE_ENGINE, engine, eglfs);
+
+#ifndef EVAS_STATIC_BUILD_EGLFS
+EVAS_EINA_MODULE_DEFINE(engine, eglfs);
+#endif
diff --git a/src/modules/evas/engines/eglfs/evas_engine.h b/src/modules/evas/engines/eglfs/evas_engine.h
new file mode 100644
index 0000000000..e02acb0d03
--- /dev/null
+++ b/src/modules/evas/engines/eglfs/evas_engine.h
@@ -0,0 +1,133 @@
+#ifndef EVAS_ENGINE_H
+# define EVAS_ENGINE_H
+
+# include "evas_common_private.h"
+# include "evas_macros.h"
+# include "evas_private.h"
+# include "Evas.h"
+# include "Evas_Engine_Eglfs.h"
+
+# define EGL_EGLEXT_PROTOTYPES
+# define GL_GLEXT_PROTOTYPES
+
+# include <EGL/egl.h>
+# include <EGL/eglext.h>
+# include <EGL/eglmesaext.h>
+# include <GLES2/gl2.h>
+# include <GLES2/gl2ext.h>
+# include <hwcomposer.h>
+# include <hardware/hardware.h>
+# include <hardware/hwcomposer.h>
+# include "../gl_generic/Evas_Engine_GL_Generic.h"
+
+extern int _evas_engine_eglfs_log_dom;
+extern int _extn_have_buffer_age;
+
+# ifdef ERR
+#  undef ERR
+# endif
+# define ERR(...) EINA_LOG_DOM_ERR(_evas_engine_eglfs_log_dom, __VA_ARGS__)
+
+# ifdef DBG
+#  undef DBG
+# endif
+# define DBG(...) EINA_LOG_DOM_DBG(_evas_engine_eglfs_log_dom, __VA_ARGS__)
+
+# ifdef INF
+#  undef INF
+# endif
+# define INF(...) EINA_LOG_DOM_INFO(_evas_engine_eglfs_log_dom, __VA_ARGS__)
+
+# ifdef WRN
+#  undef WRN
+# endif
+# define WRN(...) EINA_LOG_DOM_WARN(_evas_engine_eglfs_log_dom, __VA_ARGS__)
+
+# ifdef CRI
+#  undef CRI
+# endif
+# define CRI(...) EINA_LOG_DOM_CRIT(_evas_engine_eglfs_log_dom, __VA_ARGS__)
+
+extern Evas_GL_Common_Context_New glsym_evas_gl_common_context_new;
+extern Evas_GL_Common_Context_Call glsym_evas_gl_common_context_flush;
+extern Evas_GL_Common_Context_Call glsym_evas_gl_common_context_free;
+extern Evas_GL_Common_Context_Call glsym_evas_gl_common_context_use;
+extern Evas_GL_Common_Context_Call glsym_evas_gl_common_context_newframe;
+extern Evas_GL_Common_Context_Call glsym_evas_gl_common_context_done;
+extern Evas_GL_Common_Context_Resize_Call glsym_evas_gl_common_context_resize;
+extern Evas_GL_Common_Buffer_Dump_Call glsym_evas_gl_common_buffer_dump;
+extern Evas_GL_Preload_Render_Call glsym_evas_gl_preload_render_lock;
+extern Evas_GL_Preload_Render_Call glsym_evas_gl_preload_render_unlock;
+
+struct _Context_3D
+{
+   EGLDisplay display;
+   EGLContext context;
+   EGLSurface surface;
+};
+
+struct _Outbuf
+{
+   Evas_Engine_Info_Eglfs *info;
+   Evas_Engine_GL_Context *gl_context;
+
+   Evas *evas; // used for pre_swap, post_swap
+
+   int w, h;
+   unsigned int rotation, depth;
+   Render_Engine_Swap_Mode swap_mode;
+
+   struct
+     {
+        EGLContext context[1];
+        EGLSurface surface[1];
+        EGLConfig config;
+        EGLDisplay disp;
+     } egl;
+
+   struct
+     {
+        int prev_age, frame_cnt;
+        int curr, last, num;
+        Eina_List *pending_writes;
+     } priv;
+
+   Eina_Bool destination_alpha : 1;
+   Eina_Bool vsync : 1;
+   Eina_Bool lost_back : 1;
+   Eina_Bool surf : 1;
+   Eina_Bool drew : 1;
+};
+
+Outbuf *evas_outbuf_new(Evas_Engine_Info_Eglfs *info, int w, int h, Render_Engine_Swap_Mode swap_mode);
+void evas_outbuf_free(Outbuf *ob);
+void evas_outbuf_use(Outbuf *ob);
+void evas_outbuf_resurf(Outbuf *ob);
+void evas_outbuf_unsurf(Outbuf *ob);
+void evas_outbuf_reconfigure(Outbuf *ob, int w, int h, int rot, Outbuf_Depth depth);
+Render_Engine_Swap_Mode evas_outbuf_buffer_state_get(Outbuf *ob);
+int evas_outbuf_rot_get(Outbuf *ob);
+Eina_Bool evas_outbuf_update_region_first_rect(Outbuf *ob);
+void *evas_outbuf_update_region_new(Outbuf *ob, int x, int y, int w, int h, int *cx, int *cy, int *cw, int *ch);
+void evas_outbuf_update_region_push(Outbuf *ob, RGBA_Image *update, int x, int y, int w, int h);
+void evas_outbuf_update_region_free(Outbuf *ob, RGBA_Image *update);
+void evas_outbuf_flush(Outbuf *ob, Tilebuf_Rect *rects, Evas_Render_Mode render_mode);
+Evas_Engine_GL_Context* evas_outbuf_gl_context_get(Outbuf *ob);
+void *evas_outbuf_egl_display_get(Outbuf *ob);
+Context_3D *evas_outbuf_gl_context_new(Outbuf *ob);
+void evas_outbuf_gl_context_use(Context_3D *ctx);
+EGLNativeWindowType create_hwcomposernativewindow(void);
+
+static inline Eina_Bool
+_re_wincheck(Outbuf *ob)
+{
+   if (ob->surf) return EINA_TRUE;
+   evas_outbuf_resurf(ob);
+   ob->lost_back = 1;
+   if (!ob->surf) ERR("GL engine can't re-create window surface!");
+   return EINA_FALSE;
+}
+
+extern unsigned int (*glsym_eglSwapBuffersWithDamage)(EGLDisplay a, void *b, const EGLint *d, EGLint c);
+
+#endif
diff --git a/src/modules/evas/engines/eglfs/evas_outbuf.c b/src/modules/evas/engines/eglfs/evas_outbuf.c
new file mode 100644
index 0000000000..aa3cd8a1b2
--- /dev/null
+++ b/src/modules/evas/engines/eglfs/evas_outbuf.c
@@ -0,0 +1,703 @@
+#include "evas_engine.h"
+
+#include <hybris/hwcomposerwindow/hwcomposer.h>
+#include <hardware/hwcomposer.h>
+#include <hardware/hardware.h>
+#include <android-config.h>
+
+static hwc_layer_1_t *fblayer;
+static hwc_composer_device_1_t *hwcDevicePtr;
+static hwc_display_contents_1_t **mList;
+
+void present(void *user_data, struct ANativeWindow *window,
+	                                   struct ANativeWindowBuffer *buffer)
+{
+
+	int oldretire = mList[0]->retireFenceFd;
+	mList[0]->retireFenceFd = -1;
+	fblayer->handle = buffer->handle;
+	fblayer->acquireFenceFd = HWCNativeBufferGetFence(buffer);
+	fblayer->releaseFenceFd = -1;
+	int err = hwcDevicePtr->prepare(hwcDevicePtr, HWC_NUM_DISPLAY_TYPES, mList);
+	//assert(err == 0);
+
+	err = hwcDevicePtr->set(hwcDevicePtr, HWC_NUM_DISPLAY_TYPES, mList);
+	//assert(err == 0);
+	HWCNativeBufferSetFence(buffer, fblayer->releaseFenceFd);
+
+	if (oldretire != -1)
+	{
+		sync_wait(oldretire, -1);
+		close(oldretire);
+	}
+}
+
+
+EGLNativeWindowType create_hwcomposernativewindow(void)
+{
+	int err;
+	hw_module_t *hwcModule = 0;
+	hwcDevicePtr = 0;
+
+	err = hw_get_module(HWC_HARDWARE_MODULE_ID, (const hw_module_t **) &hwcModule);
+	//assert(err == 0);
+
+	err = hwc_open_1(hwcModule, &hwcDevicePtr);
+	//assert(err == 0);
+
+	hwcDevicePtr->blank(hwcDevicePtr, 0, 0);
+
+	uint32_t configs[5];
+	size_t numConfigs = 5;
+
+	err = hwcDevicePtr->getDisplayConfigs(hwcDevicePtr, 0, configs, &numConfigs);
+	//assert (err == 0);
+
+	int32_t attr_values[2];
+	uint32_t attributes[] = { HWC_DISPLAY_WIDTH, HWC_DISPLAY_HEIGHT, HWC_DISPLAY_NO_ATTRIBUTE };
+
+	hwcDevicePtr->getDisplayAttributes(hwcDevicePtr, 0,
+			configs[0], attributes, attr_values);
+
+	size_t size = sizeof(hwc_display_contents_1_t) + 2 * sizeof(hwc_layer_1_t);
+	hwc_display_contents_1_t *list = (hwc_display_contents_1_t *) malloc(size);
+	mList = (hwc_display_contents_1_t **) malloc(HWC_NUM_DISPLAY_TYPES * sizeof(hwc_display_contents_1_t *));
+	const hwc_rect_t r = { 0, 0, attr_values[0], attr_values[1] };
+
+	int counter = 0;
+	for (; counter < HWC_NUM_DISPLAY_TYPES; counter++)
+		mList[counter] = NULL;
+	// Assign buffer only to the first item, otherwise you get tearing
+	// if passed the same to multiple places
+	mList[0] = list;
+
+	fblayer = &list->hwLayers[0];
+	memset(fblayer, 0, sizeof(hwc_layer_1_t));
+	fblayer->compositionType = HWC_FRAMEBUFFER;
+	fblayer->hints = 0;
+	fblayer->flags = 0;
+	fblayer->handle = 0;
+	fblayer->transform = 0;
+	fblayer->blending = HWC_BLENDING_NONE;
+	fblayer->sourceCrop = r;
+	fblayer->displayFrame = r;
+	fblayer->visibleRegionScreen.numRects = 1;
+	fblayer->visibleRegionScreen.rects = &fblayer->displayFrame;
+	fblayer->acquireFenceFd = -1;
+	fblayer->releaseFenceFd = -1;
+	fblayer = &list->hwLayers[1];
+	memset(fblayer, 0, sizeof(hwc_layer_1_t));
+	fblayer->compositionType = HWC_FRAMEBUFFER_TARGET;
+	fblayer->hints = 0;
+	fblayer->flags = 0;
+	fblayer->handle = 0;
+	fblayer->transform = 0;
+	fblayer->blending = HWC_BLENDING_NONE;
+	fblayer->sourceCrop = r;
+	fblayer->displayFrame = r;
+	fblayer->visibleRegionScreen.numRects = 1;
+	fblayer->visibleRegionScreen.rects = &fblayer->displayFrame;
+	fblayer->acquireFenceFd = -1;
+	fblayer->releaseFenceFd = -1;
+
+	list->retireFenceFd = -1;
+	list->flags = HWC_GEOMETRY_CHANGED;
+	list->numHwLayers = 2;
+
+	EGLNativeWindowType win = NULL;
+   	win = (EGLNativeWindowType)HWCNativeWindowCreate(attr_values[0], attr_values[1], HAL_PIXEL_FORMAT_RGBA_8888, present, NULL);
+    return win;
+}
+
+/* local variables */
+static Outbuf *_evas_eglfs_window = NULL;
+static EGLContext context = EGL_NO_CONTEXT;
+static int win_count = 0;
+
+static Eina_Bool
+_evas_outbuf_make_current(void *data, void *doit)
+{
+   Outbuf *ob;
+
+   if (!(ob = data)) return EINA_FALSE;
+
+   if (doit)
+     {
+        if (!eglMakeCurrent(ob->egl.disp, ob->egl.surface[0],
+                            ob->egl.surface[0], ob->egl.context[0]))
+          return EINA_FALSE;
+     }
+   else
+     {
+        if (!eglMakeCurrent(ob->egl.disp, EGL_NO_SURFACE,
+                            EGL_NO_SURFACE, EGL_NO_CONTEXT))
+          return EINA_FALSE;
+     }
+
+   return EINA_TRUE;
+}
+
+void _hwcomposer_present_cb(void *user_data, struct ANativeWindow *window, struct ANativeWindowBuffer *buffer)
+{
+}
+
+static Eina_Bool
+_evas_outbuf_egl_setup(Outbuf *ob)
+{
+   int ctx_attr[3];
+   int cfg_attr[40];
+   int maj = 0, min = 0, n = 0, i = 0;
+   EGLint ncfg;
+   EGLConfig *cfgs;
+   const GLubyte *vendor, *renderer, *version, *glslversion;
+   Eina_Bool blacklist = EINA_FALSE;
+
+   /* setup egl surface */
+   ctx_attr[0] = EGL_CONTEXT_CLIENT_VERSION;
+   ctx_attr[1] = 2;
+   ctx_attr[2] = EGL_NONE;
+
+   cfg_attr[n++] = EGL_BUFFER_SIZE;
+   cfg_attr[n++] = 32;
+   cfg_attr[n++] = EGL_DEPTH_SIZE;
+   cfg_attr[n++] = EGL_DONT_CARE;
+   cfg_attr[n++] = EGL_STENCIL_SIZE;
+   cfg_attr[n++] = EGL_DONT_CARE;
+   cfg_attr[n++] = EGL_RENDERABLE_TYPE;
+   cfg_attr[n++] = EGL_OPENGL_ES2_BIT;
+   cfg_attr[n++] = EGL_SURFACE_TYPE;
+   cfg_attr[n++] = EGL_WINDOW_BIT;
+
+   cfg_attr[n++] = EGL_ALPHA_SIZE;
+   if (ob->destination_alpha) cfg_attr[n++] = 1;
+   else cfg_attr[n++] = 0;
+   cfg_attr[n++] = EGL_NONE;
+
+   int err;
+   hw_module_t *hwcModule = 0;
+   hwc_composer_device_1_t *hwcDevicePtr = 0;
+
+   err = hw_get_module(HWC_HARDWARE_MODULE_ID, (const hw_module_t **) &hwcModule);
+   if (err != 0)
+     {
+        ERR("hw_get_module() fail. code=%d", err);
+        return EINA_FALSE;
+     }
+   err = hwc_open_1(hwcModule, &hwcDevicePtr);
+   if (err != 0)
+     {
+        ERR("hwc_open_1 fail. code=%d", err);
+        return EINA_FALSE;
+     }
+   hwcDevicePtr->blank(hwcDevicePtr, 0, 0);
+
+   uint32_t configs[5];
+   size_t numConfigs = 5;
+
+   err = hwcDevicePtr->getDisplayConfigs(hwcDevicePtr, 0, configs, &numConfigs);
+   if (err != 0)
+     {
+        ERR("getDisplayConfig. code=%d", err);
+        return EINA_FALSE;
+     }
+
+   int32_t attr_values[2];
+   uint32_t attributes[] = { HWC_DISPLAY_WIDTH, HWC_DISPLAY_HEIGHT, HWC_DISPLAY_NO_ATTRIBUTE };
+
+   hwcDevicePtr->getDisplayAttributes(hwcDevicePtr, 0,
+				      configs[0], attributes, attr_values);
+
+   DBG("width: %i height: %i\n", attr_values[0], attr_values[1]);
+
+   size_t size = sizeof(hwc_display_contents_1_t) + 2 * sizeof(hwc_layer_1_t);
+   hwc_display_contents_1_t *list = (hwc_display_contents_1_t *) malloc(size);
+   hwc_display_contents_1_t **mList = (hwc_display_contents_1_t **) malloc(HWC_NUM_DISPLAY_TYPES * sizeof(hwc_display_contents_1_t *));
+   const hwc_rect_t r = { 0, 0, attr_values[0], attr_values[1] };
+
+   int counter = 0;
+   for (; counter < HWC_NUM_DISPLAY_TYPES; counter++)
+     mList[counter] = NULL;
+   mList[0] = list;
+
+   hwc_layer_1_t *layer = &list->hwLayers[0];
+   memset(layer, 0, sizeof(hwc_layer_1_t));
+   layer->compositionType = HWC_FRAMEBUFFER;
+   layer->hints = 0;
+   layer->flags = 0;
+   layer->handle = 0;
+   layer->transform = 0;
+   layer->blending = HWC_BLENDING_NONE;
+   layer->sourceCrop = r;
+   layer->displayFrame = r;
+   layer->visibleRegionScreen.numRects = 1;
+   layer->visibleRegionScreen.rects = &layer->displayFrame;
+   layer->acquireFenceFd = -1;
+   layer->releaseFenceFd = -1;
+   layer = &list->hwLayers[1];
+   memset(layer, 0, sizeof(hwc_layer_1_t));
+   layer->compositionType = HWC_FRAMEBUFFER_TARGET;
+   layer->hints = 0;
+   layer->flags = 0;
+   layer->handle = 0;
+   layer->transform = 0;
+   layer->blending = HWC_BLENDING_NONE;
+   layer->sourceCrop = r;
+   layer->displayFrame = r;
+   layer->visibleRegionScreen.numRects = 1;
+   layer->visibleRegionScreen.rects = &layer->displayFrame;
+   layer->acquireFenceFd = -1;
+   layer->releaseFenceFd = -1;
+
+   list->retireFenceFd = -1;
+   list->flags = HWC_GEOMETRY_CHANGED;
+   list->numHwLayers = 2;
+
+   ob->egl.disp = eglGetDisplay(NULL);
+   if (ob->egl.disp  == EGL_NO_DISPLAY)
+     {
+        ERR("eglGetDisplay() fail. code=%#x", eglGetError());
+        return EINA_FALSE;
+     }
+
+   if (!eglInitialize(ob->egl.disp, &maj, &min))
+     {
+        ERR("eglInitialize() fail. code=%#x", eglGetError());
+        return EINA_FALSE;
+     }
+
+   eglBindAPI(EGL_OPENGL_ES_API);
+   if (eglGetError() != EGL_SUCCESS)
+     {
+        ERR("eglBindAPI() fail. code=%#x", eglGetError());
+        return EINA_FALSE;
+     }
+
+   if (!eglGetConfigs(ob->egl.disp, NULL, 0, &ncfg) || (ncfg == 0))
+     {
+        ERR("eglGetConfigs() fail. code=%#x", eglGetError());
+        return EINA_FALSE;
+     }
+
+   cfgs = malloc(ncfg * sizeof(EGLConfig));
+   if (!cfgs)
+     {
+        ERR("Failed to malloc space for egl configs");
+        return EINA_FALSE;
+     }
+
+   if (!eglChooseConfig(ob->egl.disp, cfg_attr, cfgs,
+                        ncfg, &ncfg) || (ncfg == 0))
+     {
+        ERR("eglChooseConfig() fail. code=%#x", eglGetError());
+        return EINA_FALSE;
+     }
+
+   // First is always best...
+   ob->egl.config = cfgs[0];
+
+   EGLNativeWindowType win = create_hwcomposernativewindow();
+   ob->egl.surface[0] =
+     eglCreateWindowSurface(ob->egl.disp, ob->egl.config,
+                            (EGLNativeWindowType)win, NULL);
+
+   if (ob->egl.surface[0] == EGL_NO_SURFACE)
+     {
+        ERR("eglCreateWindowSurface() fail for %p. code=%#x",
+            NULL, eglGetError());
+        return EINA_FALSE;
+     }
+
+   ob->egl.context[0] =
+     eglCreateContext(ob->egl.disp, ob->egl.config, EGL_NO_CONTEXT, ctx_attr);
+   if (ob->egl.context[0] == EGL_NO_CONTEXT)
+     {
+        ERR("eglCreateContext() fail. code=%#x", eglGetError());
+        return EINA_FALSE;
+     }
+
+   if (context == EGL_NO_CONTEXT) context = ob->egl.context[0];
+
+   if (eglMakeCurrent(ob->egl.disp, ob->egl.surface[0],
+                      ob->egl.surface[0], ob->egl.context[0]) == EGL_FALSE)
+     {
+        ERR("eglMakeCurrent() fail. code=%#x", eglGetError());
+        return EINA_FALSE;
+     }
+
+   vendor = glGetString(GL_VENDOR);
+   renderer = glGetString(GL_RENDERER);
+   version = glGetString(GL_VERSION);
+   glslversion = glGetString(GL_SHADING_LANGUAGE_VERSION);
+   if (!vendor)   vendor   = (unsigned char *)"-UNKNOWN-";
+   if (!renderer) renderer = (unsigned char *)"-UNKNOWN-";
+   if (!version)  version  = (unsigned char *)"-UNKNOWN-";
+   if (!glslversion) glslversion = (unsigned char *)"-UNKNOWN-";
+   if (getenv("EVAS_GL_INFO"))
+     {
+        fprintf(stderr, "vendor  : %s\n", vendor);
+        fprintf(stderr, "renderer: %s\n", renderer);
+        fprintf(stderr, "version : %s\n", version);
+        fprintf(stderr, "glsl ver: %s\n", glslversion);
+     }
+
+   if (strstr((const char *)vendor, "Mesa Project"))
+     {
+        if (strstr((const char *)renderer, "Software Rasterizer"))
+          blacklist = EINA_TRUE;
+     }
+   if (strstr((const char *)renderer, "softpipe"))
+     blacklist = EINA_TRUE;
+   if (strstr((const char *)renderer, "llvmpipe"))
+     blacklist = EINA_TRUE;
+
+   if ((blacklist) && (!getenv("EVAS_GL_NO_BLACKLIST")))
+     {
+        ERR("OpenGL Driver blacklisted:");
+        ERR("Vendor: %s", (const char *)vendor);
+        ERR("Renderer: %s", (const char *)renderer);
+        ERR("Version: %s", (const char *)version);
+        return EINA_FALSE;
+     }
+
+   ob->gl_context = glsym_evas_gl_common_context_new();
+   if (!ob->gl_context) return EINA_FALSE;
+
+#ifdef GL_GLES
+   ob->gl_context->egldisp = ob->egl.disp;
+   ob->gl_context->eglctxt = ob->egl.context[0];
+#endif
+
+   evas_outbuf_use(ob);
+   glsym_evas_gl_common_context_resize(ob->gl_context,
+                                       ob->w, ob->h, ob->rotation);
+
+   ob->surf = EINA_TRUE;
+
+   return EINA_TRUE;
+}
+
+Outbuf *
+evas_outbuf_new(Evas_Engine_Info_Eglfs *info, int w, int h, Render_Engine_Swap_Mode swap_mode)
+{
+   Outbuf *ob;
+   char *num;
+
+   if (!info) return NULL;
+
+   /* try to allocate space for outbuf */
+   if (!(ob = calloc(1, sizeof(Outbuf)))) return NULL;
+
+   win_count++;
+
+   ob->w = w;
+   ob->h = h;
+   ob->info = info;
+   ob->depth = info->info.depth;
+   ob->rotation = info->info.rotation;
+   ob->destination_alpha = info->info.destination_alpha;
+   ob->swap_mode = swap_mode;
+   ob->priv.num = 2;
+
+   if ((num = getenv("EVAS_EGLFS_BUFFERS")))
+     {
+        ob->priv.num = atoi(num);
+        if (ob->priv.num <= 0) ob->priv.num = 1;
+        else if (ob->priv.num > 4) ob->priv.num = 4;
+     }
+
+   if ((num = getenv("EVAS_EGLFS_VSYNC")))
+     ob->vsync = atoi(num);
+
+   if (!_evas_outbuf_egl_setup(ob))
+     {
+        evas_outbuf_free(ob);
+        return NULL;
+     }
+
+   return ob;
+}
+
+void
+evas_outbuf_free(Outbuf *ob)
+{
+   int ref = 0;
+
+   win_count--;
+   evas_outbuf_use(ob);
+
+   if (ob == _evas_eglfs_window) _evas_eglfs_window = NULL;
+
+   if (ob->gl_context)
+     {
+        ref = ob->gl_context->references - 1;
+        glsym_evas_gl_common_context_free(ob->gl_context);
+     }
+
+   eglMakeCurrent(ob->egl.disp, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
+
+   if (ob->egl.context[0] != context)
+     eglDestroyContext(ob->egl.disp, ob->egl.context[0]);
+
+   if (ob->egl.surface[0] != EGL_NO_SURFACE)
+     eglDestroySurface(ob->egl.disp, ob->egl.surface[0]);
+
+   if (ref == 0)
+     {
+        if (context) eglDestroyContext(ob->egl.disp, context);
+        eglTerminate(ob->egl.disp);
+        eglReleaseThread();
+        context = EGL_NO_CONTEXT;
+     }
+
+   free(ob);
+}
+
+void
+evas_outbuf_use(Outbuf *ob)
+{
+   Eina_Bool force = EINA_FALSE;
+
+   glsym_evas_gl_preload_render_lock(_evas_outbuf_make_current, ob);
+
+   if (_evas_eglfs_window)
+     {
+        if (eglGetCurrentContext() != _evas_eglfs_window->egl.context[0])
+          force = EINA_TRUE;
+     }
+
+   if ((_evas_eglfs_window != ob) || (force))
+     {
+        if (_evas_eglfs_window)
+          {
+             glsym_evas_gl_common_context_use(_evas_eglfs_window->gl_context);
+             glsym_evas_gl_common_context_flush(_evas_eglfs_window->gl_context);
+          }
+
+        _evas_eglfs_window = ob;
+
+        if (ob)
+          {
+             if (ob->egl.surface[0] != EGL_NO_SURFACE)
+               {
+                  if (eglMakeCurrent(ob->egl.disp, ob->egl.surface[0],
+                                     ob->egl.surface[0],
+                                     ob->egl.context[0]) == EGL_FALSE)
+                    ERR("eglMakeCurrent() failed!");
+               }
+          }
+     }
+
+   if (ob) glsym_evas_gl_common_context_use(ob->gl_context);
+}
+
+void
+evas_outbuf_resurf(Outbuf *ob)
+{
+   if (ob->surf) return;
+   if (getenv("EVAS_GL_INFO")) printf("resurf %p\n", ob);
+
+   ob->egl.surface[0] =
+     eglCreateWindowSurface(ob->egl.disp, ob->egl.config,
+                            NULL, NULL);
+
+   if (ob->egl.surface[0] == EGL_NO_SURFACE)
+     {
+        ERR("eglCreateWindowSurface() fail for %p. code=%#x",
+            NULL, eglGetError());
+        return;
+     }
+
+   if (eglMakeCurrent(ob->egl.disp, ob->egl.surface[0], ob->egl.surface[0],
+                      ob->egl.context[0]) == EGL_FALSE)
+     ERR("eglMakeCurrent() failed!");
+
+   ob->surf = EINA_TRUE;
+}
+
+void
+evas_outbuf_unsurf(Outbuf *ob)
+{
+   if (!ob->surf) return;
+   if (!getenv("EVAS_GL_WIN_RESURF")) return;
+   if (getenv("EVAS_GL_INFO")) printf("unsurf %p\n", ob);
+
+   if (_evas_eglfs_window)
+      glsym_evas_gl_common_context_flush(_evas_eglfs_window->gl_context);
+   if (_evas_eglfs_window == ob)
+     {
+        eglMakeCurrent(ob->egl.disp, EGL_NO_SURFACE,
+                       EGL_NO_SURFACE, EGL_NO_CONTEXT);
+        if (ob->egl.surface[0] != EGL_NO_SURFACE)
+           eglDestroySurface(ob->egl.disp, ob->egl.surface[0]);
+        ob->egl.surface[0] = EGL_NO_SURFACE;
+
+        _evas_eglfs_window = NULL;
+     }
+
+   ob->surf = EINA_FALSE;
+}
+
+void
+evas_outbuf_reconfigure(Outbuf *ob, int w, int h, int rot, Outbuf_Depth depth)
+{
+   if (depth == OUTBUF_DEPTH_INHERIT) depth = ob->depth;
+
+   ob->w = w;
+   ob->h = h;
+   ob->depth = depth;
+   ob->rotation = rot;
+
+   evas_outbuf_use(ob);
+   glsym_evas_gl_common_context_resize(ob->gl_context, w, h, rot);
+}
+
+Render_Engine_Swap_Mode
+evas_outbuf_buffer_state_get(Outbuf *ob)
+{
+   return MODE_FULL;
+   // Forces re-rendering all the screen, that is bad for performance. However
+   // partial rendering makes black area. We should try to find a better solution.
+}
+
+int
+evas_outbuf_rot_get(Outbuf *ob)
+{
+   return ob->rotation;
+}
+
+Eina_Bool
+evas_outbuf_update_region_first_rect(Outbuf *ob)
+{
+   glsym_evas_gl_preload_render_lock(_evas_outbuf_make_current, ob);
+   evas_outbuf_use(ob);
+
+   if (!_re_wincheck(ob)) return EINA_TRUE;
+
+   glsym_evas_gl_common_context_flush(ob->gl_context);
+   glsym_evas_gl_common_context_newframe(ob->gl_context);
+
+   return EINA_FALSE;
+}
+
+void *
+evas_outbuf_update_region_new(Outbuf *ob, int x, int y, int w, int h, int *cx EINA_UNUSED, int *cy EINA_UNUSED, int *cw EINA_UNUSED, int *ch EINA_UNUSED)
+{
+   if ((w == ob->w) && (h == ob->h))
+     ob->gl_context->master_clip.enabled = EINA_FALSE;
+   else
+     {
+        ob->gl_context->master_clip.enabled = EINA_TRUE;
+        ob->gl_context->master_clip.x = x;
+        ob->gl_context->master_clip.y = y;
+        ob->gl_context->master_clip.w = w;
+        ob->gl_context->master_clip.h = h;
+     }
+
+   return ob->gl_context->def_surface;
+}
+
+void
+evas_outbuf_update_region_push(Outbuf *ob, RGBA_Image *update EINA_UNUSED, int x EINA_UNUSED, int y EINA_UNUSED, int w EINA_UNUSED, int h EINA_UNUSED)
+{
+   /* Is it really necessary to flush per region ? Shouldn't we be able to
+      still do that for the full canvas when doing partial update */
+   if (!_re_wincheck(ob)) return;
+   ob->drew = EINA_TRUE;
+   glsym_evas_gl_common_context_flush(ob->gl_context);
+}
+
+void
+evas_outbuf_update_region_free(Outbuf *ob EINA_UNUSED, RGBA_Image *update EINA_UNUSED)
+{
+   /* Nothing to do here as we don't really create an image per area */
+}
+
+void
+evas_outbuf_flush(Outbuf *ob, Tilebuf_Rect *rects EINA_UNUSED, Evas_Render_Mode render_mode)
+{
+   if (render_mode == EVAS_RENDER_MODE_ASYNC_INIT) goto end;
+
+   if (!_re_wincheck(ob)) goto end;
+   if (!ob->drew) goto end;
+
+   ob->drew = EINA_FALSE;
+   evas_outbuf_use(ob);
+   glsym_evas_gl_common_context_done(ob->gl_context);
+
+   if (!ob->vsync)
+     {
+        if (ob->info->info.vsync) eglSwapInterval(ob->egl.disp, 1);
+        else eglSwapInterval(ob->egl.disp, 0);
+        ob->vsync = 1;
+     }
+
+   if (ob->info->callback.pre_swap)
+     ob->info->callback.pre_swap(ob->info->callback.data, ob->evas);
+
+   eglSwapBuffers(ob->egl.disp, ob->egl.surface[0]);
+
+   if (ob->info->callback.post_swap)
+     ob->info->callback.post_swap(ob->info->callback.data, ob->evas);
+
+   ob->priv.frame_cnt++;
+
+end:
+   glsym_evas_gl_preload_render_unlock(_evas_outbuf_make_current, ob);
+}
+
+Evas_Engine_GL_Context *
+evas_outbuf_gl_context_get(Outbuf *ob)
+{
+   return ob->gl_context;
+}
+
+void *
+evas_outbuf_egl_display_get(Outbuf *ob)
+{
+   return ob->egl.disp;
+}
+
+Context_3D *
+evas_outbuf_gl_context_new(Outbuf *ob)
+{
+   Context_3D *ctx;
+   int context_attrs[3] = { EGL_CONTEXT_CLIENT_VERSION, 2, EGL_NONE };
+
+   if (!ob) return NULL;
+
+   ctx = calloc(1, sizeof(Context_3D));
+   if (!ctx) return NULL;
+
+   ctx->context = eglCreateContext(ob->egl.disp, ob->egl.config,
+                                   ob->egl.context[0], context_attrs);
+
+   if (!ctx->context)
+     {
+        ERR("EGL context creation failed.");
+        goto error;
+     }
+
+   ctx->display = ob->egl.disp;
+   ctx->surface = ob->egl.surface[0];
+
+   return ctx;
+
+error:
+   free(ctx);
+   return NULL;
+}
+
+void
+evas_outbuf_gl_context_free(Context_3D *ctx)
+{
+   eglDestroyContext(ctx->display, ctx->context);
+   free(ctx);
+}
+
+void
+evas_outbuf_gl_context_use(Context_3D *ctx)
+{
+   if (eglMakeCurrent(ctx->display, ctx->surface,
+                      ctx->surface, ctx->context) == EGL_FALSE)
+     ERR("eglMakeCurrent() failed.");
+}