本文整理汇总了Java中com.sun.imageio.plugins.jpeg.JPEGImageReaderSpi类的典型用法代码示例。如果您正苦于以下问题：Java JPEGImageReaderSpi类的具体用法？Java JPEGImageReaderSpi怎么用？Java JPEGImageReaderSpi使用的例子？那么, 这里精选的类代码示例或许可以为您提供帮助。
JPEGImageReaderSpi类属于com.sun.imageio.plugins.jpeg包，在下文中一共展示了JPEGImageReaderSpi类的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: registerStandardSpis
import com.sun.imageio.plugins.jpeg.JPEGImageReaderSpi; //导入依赖的package包/类
private void registerStandardSpis() {
// Hardwire standard SPIs
registerServiceProvider(new GIFImageReaderSpi());
registerServiceProvider(new GIFImageWriterSpi());
registerServiceProvider(new BMPImageReaderSpi());
registerServiceProvider(new BMPImageWriterSpi());
registerServiceProvider(new WBMPImageReaderSpi());
registerServiceProvider(new WBMPImageWriterSpi());
registerServiceProvider(new PNGImageReaderSpi());
registerServiceProvider(new PNGImageWriterSpi());
registerServiceProvider(new JPEGImageReaderSpi());
registerServiceProvider(new JPEGImageWriterSpi());
registerServiceProvider(new FileImageInputStreamSpi());
registerServiceProvider(new FileImageOutputStreamSpi());
registerServiceProvider(new InputStreamImageInputStreamSpi());
registerServiceProvider(new OutputStreamImageOutputStreamSpi());
registerServiceProvider(new RAFImageInputStreamSpi());
registerServiceProvider(new RAFImageOutputStreamSpi());
registerInstalledProviders();
}
示例2: registerStandardSpis
import com.sun.imageio.plugins.jpeg.JPEGImageReaderSpi; //导入依赖的package包/类
private void registerStandardSpis() {
// Hardwire standard SPIs
registerServiceProvider(new GIFImageReaderSpi());
registerServiceProvider(new GIFImageWriterSpi());
registerServiceProvider(new BMPImageReaderSpi());
registerServiceProvider(new BMPImageWriterSpi());
registerServiceProvider(new WBMPImageReaderSpi());
registerServiceProvider(new WBMPImageWriterSpi());
registerServiceProvider(new TIFFImageReaderSpi());
registerServiceProvider(new TIFFImageWriterSpi());
registerServiceProvider(new PNGImageReaderSpi());
registerServiceProvider(new PNGImageWriterSpi());
registerServiceProvider(new JPEGImageReaderSpi());
registerServiceProvider(new JPEGImageWriterSpi());
registerServiceProvider(new FileImageInputStreamSpi());
registerServiceProvider(new FileImageOutputStreamSpi());
registerServiceProvider(new InputStreamImageInputStreamSpi());
registerServiceProvider(new OutputStreamImageOutputStreamSpi());
registerServiceProvider(new RAFImageInputStreamSpi());
registerServiceProvider(new RAFImageOutputStreamSpi());
registerInstalledProviders();
}
示例3: call
import com.sun.imageio.plugins.jpeg.JPEGImageReaderSpi; //导入依赖的package包/类
@Override
public Pair<Integer, int[][]> call() throws Exception
{
try
{
// long start = perfLoadJpeg.startRun();
JPEGImageReaderSpi jpeg = getJpegReader();
byte[] frameData = IOUtils.toByteArray(frameResouce.getInputStream());
ImageReader reader = jpeg.createReaderInstance();
reader.setInput(new InMemoryImageInputStream(frameData));
BufferedImage image = reader.read(0);
// perfLoadJpeg.endRun(start);
if(image == null)
{
Log.warn(String.format("Unable to load frame for animated texture %s. Texture will not animate.", CompressedAnimatedSprite.this.getIconName()));
CompressedAnimatedSprite.this.isValid = false;
return null;
}
else
{
// start = perfLoadAlpha.startRun();
final int size = CompressedAnimatedSprite.this.width * CompressedAnimatedSprite.this.height;
int pixels[] = new int[size];
image.getRGB(0, 0, CompressedAnimatedSprite.this.width, CompressedAnimatedSprite.this.height, pixels, 0, CompressedAnimatedSprite.this.width);
// restore alpha
for(int destIndex = 0; destIndex < size; destIndex++)
{
final int r = (pixels[destIndex] >> 16) & 0xFF;
final int g = (pixels[destIndex] >> 8) & 0xFF;
final int b = pixels[destIndex] & 0xFF;
int alpha = Math.max(Math.max(r, g), b);
pixels[destIndex] = alpha << 24 | (r << 16) | (g << 8) | b;
}
// perfLoadAlpha.endRun(start);
// start = perfLoadMipMap.startRun();
// generate mip maps
int[][] template = new int[CompressedAnimatedSprite.this.mipmapLevels + 1][];
template[0] = pixels;
int[][] result = TextureUtil.generateMipmapData(CompressedAnimatedSprite.this.mipmapLevels, CompressedAnimatedSprite.this.width, template);
// perfLoadMipMap.endRun(start);
return Pair.of(this.frameIndex, result);
}
}
catch (Exception e)
{
Log.error(String.format("Unable to load frame for animated texture %s. Texture will not animate.", CompressedAnimatedSprite.this.getIconName()), e);
CompressedAnimatedSprite.this.isValid = false;
return null;
}
}