コード例 #1
0
        public void compressImage(java.awt.image.BufferedImage image, DXTCompressionAttributes attributes,
                                  java.nio.ByteBuffer buffer)
        {
            if (image == null)
            {
                String message = Logging.getMessage("nullValue.ImageIsNull");
                Logging.logger().severe(message);
                throw new ArgumentException(message);
            }
            if (attributes == null)
            {
                String message = Logging.getMessage("nullValue.AttributesIsNull");
                Logging.logger().severe(message);
                throw new ArgumentException(message);
            }
            if (buffer == null)
            {
                String message = Logging.getMessage("nullValue.BufferNull");
                Logging.logger().severe(message);
                throw new ArgumentException(message);
            }

            ColorBlock4x4       colorBlock          = new ColorBlock4x4();
            ColorBlockExtractor colorBlockExtractor = this.getColorBlockExtractor(image);

            BlockDXT3           dxt3Block      = new BlockDXT3();
            BlockDXT3Compressor dxt3Compressor = new BlockDXT3Compressor();

            int width  = image.getWidth();
            int height = image.getHeight();

            for (int j = 0; j < height; j += 4)
            {
                for (int i = 0; i < width; i += 4)
                {
                    colorBlockExtractor.extractColorBlock4x4(attributes, i, j, colorBlock);
                    dxt3Compressor.compressBlockDXT3(colorBlock, attributes, dxt3Block);

                    AlphaBlockDXT3 dxtAlphaBlock = dxt3Block.getAlphaBlock();
                    buffer.putLong(dxtAlphaBlock.alphaValueMask);

                    BlockDXT1 dxtColorBlock = dxt3Block.getColorBlock();
                    buffer.putShort((short)dxtColorBlock.color0);
                    buffer.putShort((short)dxtColorBlock.color1);
                    buffer.putInt((int)dxtColorBlock.colorIndexMask);
                }
            }
        }
コード例 #2
0
 protected void compressBlockDXT3a(ColorBlock4x4 colorBlock, AlphaBlockDXT3 dxtBlock)
 {
     dxtBlock.alphaValueMask = computeAlphaValueMask(colorBlock);
 }