casablanca/Release/tests/common/TestRunner/vs14.android/TestRunner.android.NativeActivity/main.cpp
static void engine_draw_frame(struct engine* engine) {
    if (engine->display == NULL) {
        // No display.
        return;
    }

    // Just fill the screen with a color.
    glClearColor(((float)engine->state.x) / engine->width, engine->state.angle,
        ((float)engine->state.y) / engine->height, 1);
    glClear(GL_COLOR_BUFFER_BIT);

    eglSwapBuffers(engine->display, engine->surface);
}
/**
* Just the current frame in the display.
*/
Just the current frame in the display.
Just the current frame in the display .
static void engine_draw_frame(struct engine* engine) {
    if (engine->display == NULL) {
        return;
    }
    glClearColor(((float)engine->state.x) / engine->width, engine->state.angle,
        ((float)engine->state.y) / engine->height, 1);
    glClear(GL_COLOR_BUFFER_BIT);
    eglSwapBuffers(engine->display, engine->surface);
}
static void engine_draw_frame ( struct engine * engine ) { if ( engine -> display == NULL ) { return ; } glClearColor ( ( ( float ) engine -> state . x ) / engine -> width , engine -> state . angle , ( ( float ) engine -> state . y ) / engine -> height , 1 ) ; glClear ( GL_COLOR_BUFFER_BIT ) ; eglSwapBuffers ( engine -> display , engine -> surface ) ; }
Just the current frame in the display.
Just the current frame in the display .
// No display.
 // Just fill the screen with a color.
