Intercept GL_VERSION string request in Evas GL (#289)

* Intercept GL_VERSION string request in Evas GL

* Evas GL's glGetString doesn't handle GL_VERSION string request.
  So it intercepts this request and always returns the 2.1 version string.
* Downgrade the version of tizen_evas_gl_helper.h to Evas_GL_GLES2.

Signed-off-by: Boram Bae <[email protected]>

* Fix a typo

Signed-off-by: Boram Bae <[email protected]>

Author: bbrto21

shell/platform/tizen/external_texture_pixel_gl.cc

@@ -8,7 +8,7 @@
 #undef EFL_BETA_API_SUPPORT
 #include "tizen_evas_gl_helper.h"
 extern Evas_GL* g_evas_gl;
-EVAS_GL_GLOBAL_GLES3_DECLARE();
+EVAS_GL_GLOBAL_GLES2_DECLARE();
 #else
 #include <EGL/egl.h>
 #include <EGL/eglext.h>

shell/platform/tizen/external_texture_surface_gl.cc

@@ -10,7 +10,7 @@
 #undef EFL_BETA_API_SUPPORT
 #include "tizen_evas_gl_helper.h"
 extern Evas_GL* g_evas_gl;
-EVAS_GL_GLOBAL_GLES3_DECLARE();
+EVAS_GL_GLOBAL_GLES2_DECLARE();
 #else
 #include <EGL/egl.h>
 #include <EGL/eglext.h>