const EGLint attribs[] = {
EGL_SURFACE_TYPE, EGL_WINDOW_BIT,
#ifdef GL_ES_VERSION_2_0
+ /*
+ * Khronos does not specify a EGL_OPENGL_ES3_BIT outside of the OpenGL extension "EGL_KHR_create_context". There are numerous references on the internet that
+ * say to use EGL_OPENGL_ES3_BIT, followed by many saying they can't find it in any headers. In fact, the offical updated specification for EGL does not have
+ * any references to OpenGL ES 3.0. Tests have shown that EGL_OPENGL_ES2_BIT will work with ES 3.0.
+ */
EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT,
#elif GL_VERSION_ES_CM_1_0 || GL_VERSION_ES_CL_1_0 || GL_VERSION_ES_CM_1_1 || GL_VERSION_ES_CL_1_1
EGL_RENDERABLE_TYPE, EGL_OPENGL_ES_BIT,
#endif
#ifdef TARGET_HOST_BLACKBERRY
/* Only 888 and 565 seem to work. Based on
- http://qt.gitorious.org/qt/qtbase/source/893deb1a93021cdfabe038cdf1869de33a60cbc9:src/plugins/platforms/qnx/qqnxglcontext.cpp
- That's all that is used, and that's what BlackBerry uses for their own internal OpenGL setup, so unless something else is determined, use it */
+ http://qt.gitorious.org/qt/qtbase/source/893deb1a93021cdfabe038cdf1869de33a60cbc9:src/plugins/platforms/qnx/qqnxglcontext.cpp and
+ https://twitter.com/BlackBerryDev/status/380720927475912706 */
EGL_BLUE_SIZE, 8,
EGL_GREEN_SIZE, 8,
EGL_RED_SIZE, 8,
EGLConfig eglConfig = window->Window.pContext.egl.Config;
/* Ensure OpenGLES 2.0 context */
- static const EGLint ctx_attribs[] = {
+ static EGLint ctx_attribs[] = {
#ifdef GL_ES_VERSION_2_0
EGL_CONTEXT_CLIENT_VERSION, 2,
#elif GL_VERSION_ES_CM_1_0 || GL_VERSION_ES_CL_1_0 || GL_VERSION_ES_CM_1_1 || GL_VERSION_ES_CL_1_1
#endif
EGL_NONE
};
+#ifdef GL_ES_VERSION_2_0
+ /*
+ * As GLES 3.0 is backwards compatible with GLES 2.0, we set 2.0 as default unless the user states a different version.
+ * This updates the context attributes and lets us check that the correct version was set when we query it after creation.
+ */
+ int gles2Ver = fgState.MajorVersion <= 2 ? 2 : fgState.MajorVersion;
+ ctx_attribs[1] = gles2Ver;
+#endif
context = eglCreateContext(eglDisplay, eglConfig, EGL_NO_CONTEXT, ctx_attribs);
if (context == EGL_NO_CONTEXT) {
fgWarning("Cannot initialize EGL context, err=%x\n", eglGetError());
EGLint ver = -1;
eglQueryContext(fgDisplay.pDisplay.egl.Display, context, EGL_CONTEXT_CLIENT_VERSION, &ver);
#ifdef GL_ES_VERSION_2_0
- if (ver != 2)
+ if (ver != gles2Ver)
#else
if (ver != 1)
#endif