/**
* 将BufferedImage转化为LTextureData
*
* @param image
*/
private void create(BufferedImage image) {
int srcWidth = image.getWidth();
int srcHeight = image.getHeight();
this.hasAlpha = image.getColorModel().hasAlpha();
if (GLEx.isPowerOfTwo(srcWidth) && GLEx.isPowerOfTwo(srcHeight)) {
this.width = srcWidth;
this.height = srcHeight;
this.texHeight = srcHeight;
this.texWidth = srcWidth;
this.source =
BufferUtils.createByteBuffer(
(byte[])
image
.getRaster()
.getDataElements(0, 0, image.getWidth(), image.getHeight(), null));
this.pixels = GraphicsUtils.getPixels(image);
return;
}
int texWidth = GLEx.toPowerOfTwo(srcWidth);
int texHeight = GLEx.toPowerOfTwo(srcHeight);
this.width = srcWidth;
this.height = srcHeight;
this.texHeight = texHeight;
this.texWidth = texWidth;
BufferedImage texImage =
new BufferedImage(
texWidth,
texHeight,
hasAlpha ? BufferedImage.TYPE_4BYTE_ABGR : BufferedImage.TYPE_3BYTE_BGR);
Graphics2D g = texImage.createGraphics();
g.drawImage(image, 0, 0, null);
if (height < texHeight - 1) {
copyArea(texImage, g, 0, 0, width, 1, 0, texHeight - 1);
copyArea(texImage, g, 0, height - 1, width, 1, 0, 1);
}
if (width < texWidth - 1) {
copyArea(texImage, g, 0, 0, 1, height, texWidth - 1, 0);
copyArea(texImage, g, width - 1, 0, 1, height, 1, 0);
}
source =
BufferUtils.createByteBuffer(
(byte[])
texImage
.getRaster()
.getDataElements(0, 0, texImage.getWidth(), texImage.getHeight(), null));
this.pixels = GraphicsUtils.getPixels(texImage);
if (texImage != null) {
texImage.flush();
texImage = null;
}
}
private void init(int width, int height, boolean alpha) {
this.width = width;
this.height = height;
this.hasAlpha = alpha;
this.buffer = BufferUtils.createByteBuffer(width * height * 4);
}
