func flushBuffer() {
for {
w := <-windowFlushBuffer
w.win.MakeContextCurrent()
imgWidth := w.buffer.Rect.Max.X
imgHeight := w.buffer.Rect.Max.Y
windowWidth, windowHeight := w.Size()
// gl.Clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT)
gl.RasterPos2f(-1, 1)
gl.PixelZoom(1, -1)
gl.Viewport(0, 0, windowWidth, windowHeight)
gl.DrawPixels(imgWidth, imgHeight, gl.RGBA, gl.UNSIGNED_BYTE, &w.buffer.Pix[0])
w.win.SwapBuffers()
windowFlushBufferDone <- true
}
}
func bitmap_output(x, y float32, str string, font glut.BitmapFont) {
gl.RasterPos2f(x, y)
for _, ch := range str {
font.Character(ch)
}
}