when blp width or height bigger then 512px .some problem happend

[PhoenixZeng]

1.the blp size will force to 512 which length then 512px
2.some color maybe lost

[DrSuperGood]

That part of the code probably needs updating. The plugin was originally written before Warcraft III Reforged added support for loading mipmap levels larger than 512 pixels in any dimension.

[PhoenixZeng]

Use the following code to avoid problem 1:

ImageOutputStream outputStream = ImageIO.createImageOutputStream(newFile);
ImageWriter writer = ImageIO.getImageWritersByFormatName(ext).next();
BLPWriteParam blpWriteParam = new BLPWriteParam();
blpWriteParam.setScaleOptimization(BLPWriteParam.ScaleOptimization.NONE);
writer.setOutput(outputStream);
writer.write(null, new IIOImage(bufferedImage, null, null), blpWriteParam);
writer.dispose();

Problem 2: I seem to have fixed it, but I forgot the corresponding code