private void replaceSurfaceData(
int newBackBufferCount, BufferCapabilities newBackBufferCaps, boolean blit) {
synchronized (surfaceDataLock) {
final SurfaceData oldData = getSurfaceData();
surfaceData = platformWindow.replaceSurfaceData();
// TODO: volatile image
// VolatileImage oldBB = backBuffer;
BufferedImage oldBB = backBuffer;
backBufferCount = newBackBufferCount;
backBufferCaps = newBackBufferCaps;
final Rectangle size = getSize();
if (getSurfaceData() != null && oldData != getSurfaceData()) {
clearBackground(size.width, size.height);
}
if (blit) {
blitSurfaceData(oldData, getSurfaceData());
}
if (oldData != null && oldData != getSurfaceData()) {
// TODO: drop oldData for D3D/WGL pipelines
// This can only happen when this peer is being created
oldData.flush();
}
// TODO: volatile image
// backBuffer = (VolatileImage)delegate.createBackBuffer();
backBuffer = (BufferedImage) platformWindow.createBackBuffer();
if (backBuffer != null) {
Graphics g = backBuffer.getGraphics();
try {
Rectangle r = getBounds();
if (g instanceof Graphics2D) {
((Graphics2D) g).setComposite(AlphaComposite.Src);
}
g.setColor(nonOpaqueBackground);
g.fillRect(0, 0, r.width, r.height);
if (g instanceof SunGraphics2D) {
((SunGraphics2D) g).constrain(0, 0, r.width, r.height, getRegion());
}
if (!isTextured()) {
g.setColor(getBackground());
g.fillRect(0, 0, r.width, r.height);
}
if (oldBB != null) {
// Draw the old back buffer to the new one
g.drawImage(oldBB, 0, 0, null);
oldBB.flush();
}
} finally {
g.dispose();
}
}
}
flushOnscreenGraphics();
}
@Override
public void flip(int x1, int y1, int x2, int y2, BufferCapabilities.FlipContents flipAction) {
final BufferedImage buffer = (BufferedImage) getBackBuffer();
if (buffer == null) {
throw new IllegalStateException("Buffers have not been created");
}
final Graphics g = getGraphics();
try {
g.drawImage(buffer, x1, y1, x2, y2, x1, y1, x2, y2, null);
} finally {
g.dispose();
}
if (flipAction == BufferCapabilities.FlipContents.BACKGROUND) {
final Graphics2D bg = (Graphics2D) buffer.getGraphics();
try {
bg.setBackground(getBackground());
bg.clearRect(0, 0, buffer.getWidth(), buffer.getHeight());
} finally {
bg.dispose();
}
}
}