/**
* 获得当前游戏屏幕截图
*
* @param x
* @param y
* @param width
* @param height
* @return
*/
public static synchronized LImage toScreenCaptureImage(int x, int y, int width, int height) {
if (GLEx.gl10 == null) {
return null;
}
if (width < 0) {
width = 1;
}
if (height < 0) {
height = 1;
}
if (x < 0 || x > width) {
x = 0;
}
if (y < 0 || y > height) {
y = 0;
}
int hashCode = 1;
hashCode = LSystem.unite(hashCode, x);
hashCode = LSystem.unite(hashCode, y);
hashCode = LSystem.unite(hashCode, width);
hashCode = LSystem.unite(hashCode, height);
if (screenCache.size() > LSystem.DEFAULT_MAX_CACHE_SIZE / 10) {
for (ScreenCache sc : screenCache.values()) {
sc.dispose();
sc = null;
}
screenCache.clear();
}
ScreenCache cache = screenCache.get(hashCode);
if (cache == null) {
cache = new ScreenCache(x, y, width, height);
} else {
cache.reset();
}
screenCache.put(hashCode, cache);
cache.commit();
for (; cache.commit == null; ) {
try {
Thread.yield();
} catch (Exception e) {
}
}
return cache.commit;
}
public synchronized void commit() {
if (runnable != null) {
return;
}
runnable =
new Runnable() {
@Override
public void run() {
GLEx.gl10.glReadPixels(
x,
(int) (LSystem.screenRect.height * LSystem.scaleHeight) - y - height,
width,
height,
GL.GL_RGBA,
GL.GL_UNSIGNED_BYTE,
buffer);
for (int i = 0, ny = 0; i < height; i++, ny++) {
for (int j = 0; j < width; j++) {
final int pix = buffer.get(i * width + j);
final int pb = (pix >> 16) & 0xff;
final int pr = (pix << 16) & 0x00ff0000;
final int pixel = (pix & 0xff00ff00) | pr | pb;
drawPixels[(height - ny - 1) * width + j] = pixel;
}
}
if (image == null) {
image = new LImage(width, height, true);
} else if (image != null && image.isClose()) {
image.dispose();
image = null;
image = new LImage(width, height, true);
}
image.setPixels(drawPixels, width, height);
if (image.getWidth() != trueWidth || image.getHeight() != trueHeight) {
LImage tmp = image.scaledInstance(trueWidth, trueHeight);
if (image != null) {
image.dispose();
image = null;
}
commit = tmp;
} else {
commit = image;
}
}
};
LSystem.callScreenRunnable(runnable);
}