@Override
public final void ppBegin(final GL gl) {
if (null == sp) {
throw new IllegalStateException("Not initialized");
}
if (0 == frameStart) {
throw new IllegalStateException("beginFrame not called");
}
final GL2ES2 gl2es2 = gl.getGL2ES2();
gl.glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
gl.glClear(GL.GL_COLOR_BUFFER_BIT);
gl.glActiveTexture(GL.GL_TEXTURE0 + getTextureUnit());
gl2es2.glDisable(GL.GL_CULL_FACE);
gl2es2.glDisable(GL.GL_DEPTH_TEST);
gl2es2.glDisable(GL.GL_BLEND);
if (!gl2es2.isGLcore()) {
gl2es2.glEnable(GL.GL_TEXTURE_2D);
}
sp.useProgram(gl2es2, true);
gl2es2.glUniform(texUnit0);
}
protected static void render(GL pGL, int width, int height) {
pGL.glClear(GL.GL_COLOR_BUFFER_BIT);
// draw a triangle filling the window
pGL.getGL2().glLoadIdentity();
pGL.getGL2().glBegin(GL.GL_TRIANGLES);
pGL.getGL2().glColor3f(r, 0, 0);
pGL.getGL2().glVertex2f(0, 0);
pGL.getGL2().glColor3f(0, g, 0);
pGL.getGL2().glVertex2f(width, 0);
pGL.getGL2().glColor3f(0, 0, b);
pGL.getGL2().glVertex2f(width / 2, height);
pGL.getGL2().glEnd();
}
public final void reshape(GLAutoDrawable drawable, int x, int y, int width, int height) {
GL gl = drawable.getGL();
gl.glClear(GL.GL_COLOR_BUFFER_BIT | GL.GL_DEPTH_BUFFER_BIT);
gl.glViewport(0, 0, width, height);
return;
}