下面列出了javax.imageio.ImageWriteParam#MODE_DEFAULT 实例代码，或者点击链接到github查看源代码，也可以在右侧发表评论。
public static void main(String args[]) throws Exception {
try {
int mode = ImageWriteParam.MODE_EXPLICIT;
String type = "BI_RLE4";
doTest(type, mode);
type = "BI_RLE8";
doTest(type, mode);
mode = ImageWriteParam.MODE_DEFAULT;
type = "BI_RLE4";
doTest(type, mode);
type = "BI_RLE8";
doTest(type, mode);
System.out.println("Test 4bpp image.");
encodeRLE4Test();
System.out.println("Test 8bpp image.");
encodeRLE8Test();
} catch (IOException e) {
e.printStackTrace();
throw new RuntimeException("Unexpected exception. Test failed");
}
}
public static void main(String args[]) {
int[] iModes = { ImageWriteParam.MODE_DISABLED,
ImageWriteParam.MODE_EXPLICIT,
ImageWriteParam.MODE_COPY_FROM_METADATA,
ImageWriteParam.MODE_DEFAULT };
String[] strModes = { "ImageWriteParam.MODE_DISABLED",
"ImageWriteParam.MODE_EXPLICIT",
"ImageWriteParam.MODE_COPY_FROM_METADATA",
"ImageWriteParam.MODE_DEFAULT" };
for(int i=0; i<iModes.length; i++) {
System.out.println("Test compression mode "+strModes[i]);
doTest(iModes[i]);
}
}
private static String getModeName(int mode) {
switch(mode) {
case ImageWriteParam.MODE_COPY_FROM_METADATA:
return "MODE_COPY_FROM_METADATA";
case ImageWriteParam.MODE_DEFAULT:
return "MODE_DEFAULT";
case ImageWriteParam.MODE_DISABLED:
return "MODE_DISABLED";
case ImageWriteParam.MODE_EXPLICIT:
return "MODE_EXPLICIT";
default:
throw new IllegalArgumentException("Unknown mode: " + mode);
}
}
private static String getModeName(int mode) {
switch(mode) {
case ImageWriteParam.MODE_COPY_FROM_METADATA:
return "MODE_COPY_FROM_METADATA";
case ImageWriteParam.MODE_DEFAULT:
return "MODE_DEFAULT";
case ImageWriteParam.MODE_DISABLED:
return "MODE_DISABLED";
case ImageWriteParam.MODE_EXPLICIT:
return "MODE_EXPLICIT";
default:
throw new IllegalArgumentException("Unknown mode: " + mode);
}
}
/**
* Writes any extension blocks, the Image Descriptor, and the image data
*
* @param iioimage The image and image metadata.
* @param param The write parameters.
* @param globalColorTable The Global Color Table.
* @param sourceBounds The source region.
* @param destSize The destination dimensions.
*/
private void writeImage(RenderedImage image,
GIFWritableImageMetadata imageMetadata,
ImageWriteParam param, byte[] globalColorTable,
Rectangle sourceBounds, Dimension destSize)
throws IOException {
ColorModel colorModel = image.getColorModel();
SampleModel sampleModel = image.getSampleModel();
boolean writeGraphicsControlExtension;
if (imageMetadata == null) {
// Create default metadata.
imageMetadata = (GIFWritableImageMetadata)getDefaultImageMetadata(
new ImageTypeSpecifier(image), param);
// Set GraphicControlExtension flag only if there is
// transparency.
writeGraphicsControlExtension = imageMetadata.transparentColorFlag;
} else {
// Check for GraphicControlExtension element.
NodeList list = null;
try {
IIOMetadataNode root = (IIOMetadataNode)
imageMetadata.getAsTree(IMAGE_METADATA_NAME);
list = root.getElementsByTagName("GraphicControlExtension");
} catch(IllegalArgumentException iae) {
// Should never happen.
}
// Set GraphicControlExtension flag if element present.
writeGraphicsControlExtension =
list != null && list.getLength() > 0;
// If progressive mode is not MODE_COPY_FROM_METADATA, ensure
// the interlacing is set per the ImageWriteParam mode setting.
if (param != null && param.canWriteProgressive()) {
if (param.getProgressiveMode() ==
ImageWriteParam.MODE_DISABLED) {
imageMetadata.interlaceFlag = false;
} else if (param.getProgressiveMode() ==
ImageWriteParam.MODE_DEFAULT) {
imageMetadata.interlaceFlag = true;
}
}
}
// Unset local color table if equal to global color table.
if (Arrays.equals(globalColorTable, imageMetadata.localColorTable)) {
imageMetadata.localColorTable = null;
}
// Override dimensions
imageMetadata.imageWidth = destSize.width;
imageMetadata.imageHeight = destSize.height;
// Write Graphics Control Extension.
if (writeGraphicsControlExtension) {
writeGraphicControlExtension(imageMetadata);
}
// Write extension blocks.
writePlainTextExtension(imageMetadata);
writeApplicationExtension(imageMetadata);
writeCommentExtension(imageMetadata);
// Write Image Descriptor
int bitsPerPixel =
getNumBits(imageMetadata.localColorTable == null ?
(globalColorTable == null ?
sampleModel.getSampleSize(0) :
globalColorTable.length/3) :
imageMetadata.localColorTable.length/3);
writeImageDescriptor(imageMetadata, bitsPerPixel);
// Write image data
writeRasterData(image, sourceBounds, destSize,
param, imageMetadata.interlaceFlag);
}
/**
* Writes any extension blocks, the Image Descriptor, and the image data
*
* @param iioimage The image and image metadata.
* @param param The write parameters.
* @param globalColorTable The Global Color Table.
* @param sourceBounds The source region.
* @param destSize The destination dimensions.
*/
private void writeImage(RenderedImage image,
GIFWritableImageMetadata imageMetadata,
ImageWriteParam param, byte[] globalColorTable,
Rectangle sourceBounds, Dimension destSize)
throws IOException {
ColorModel colorModel = image.getColorModel();
SampleModel sampleModel = image.getSampleModel();
boolean writeGraphicsControlExtension;
if (imageMetadata == null) {
// Create default metadata.
imageMetadata = (GIFWritableImageMetadata)getDefaultImageMetadata(
new ImageTypeSpecifier(image), param);
// Set GraphicControlExtension flag only if there is
// transparency.
writeGraphicsControlExtension = imageMetadata.transparentColorFlag;
} else {
// Check for GraphicControlExtension element.
NodeList list = null;
try {
IIOMetadataNode root = (IIOMetadataNode)
imageMetadata.getAsTree(IMAGE_METADATA_NAME);
list = root.getElementsByTagName("GraphicControlExtension");
} catch(IllegalArgumentException iae) {
// Should never happen.
}
// Set GraphicControlExtension flag if element present.
writeGraphicsControlExtension =
list != null && list.getLength() > 0;
// If progressive mode is not MODE_COPY_FROM_METADATA, ensure
// the interlacing is set per the ImageWriteParam mode setting.
if (param != null && param.canWriteProgressive()) {
if (param.getProgressiveMode() ==
ImageWriteParam.MODE_DISABLED) {
imageMetadata.interlaceFlag = false;
} else if (param.getProgressiveMode() ==
ImageWriteParam.MODE_DEFAULT) {
imageMetadata.interlaceFlag = true;
}
}
}
// Unset local color table if equal to global color table.
if (Arrays.equals(globalColorTable, imageMetadata.localColorTable)) {
imageMetadata.localColorTable = null;
}
// Override dimensions
imageMetadata.imageWidth = destSize.width;
imageMetadata.imageHeight = destSize.height;
// Write Graphics Control Extension.
if (writeGraphicsControlExtension) {
writeGraphicControlExtension(imageMetadata);
}
// Write extension blocks.
writePlainTextExtension(imageMetadata);
writeApplicationExtension(imageMetadata);
writeCommentExtension(imageMetadata);
// Write Image Descriptor
int bitsPerPixel =
getNumBits(imageMetadata.localColorTable == null ?
(globalColorTable == null ?
sampleModel.getSampleSize(0) :
globalColorTable.length/3) :
imageMetadata.localColorTable.length/3);
writeImageDescriptor(imageMetadata, bitsPerPixel);
// Write image data
writeRasterData(image, sourceBounds, destSize,
param, imageMetadata.interlaceFlag);
}
/**
* Writes any extension blocks, the Image Descriptor, and the image data
*
* @param iioimage The image and image metadata.
* @param param The write parameters.
* @param globalColorTable The Global Color Table.
* @param sourceBounds The source region.
* @param destSize The destination dimensions.
*/
private void writeImage(RenderedImage image,
GIFWritableImageMetadata imageMetadata,
ImageWriteParam param, byte[] globalColorTable,
Rectangle sourceBounds, Dimension destSize)
throws IOException {
ColorModel colorModel = image.getColorModel();
SampleModel sampleModel = image.getSampleModel();
boolean writeGraphicsControlExtension;
if (imageMetadata == null) {
// Create default metadata.
imageMetadata = (GIFWritableImageMetadata)getDefaultImageMetadata(
new ImageTypeSpecifier(image), param);
// Set GraphicControlExtension flag only if there is
// transparency.
writeGraphicsControlExtension = imageMetadata.transparentColorFlag;
} else {
// Check for GraphicControlExtension element.
NodeList list = null;
try {
IIOMetadataNode root = (IIOMetadataNode)
imageMetadata.getAsTree(IMAGE_METADATA_NAME);
list = root.getElementsByTagName("GraphicControlExtension");
} catch(IllegalArgumentException iae) {
// Should never happen.
}
// Set GraphicControlExtension flag if element present.
writeGraphicsControlExtension =
list != null && list.getLength() > 0;
// If progressive mode is not MODE_COPY_FROM_METADATA, ensure
// the interlacing is set per the ImageWriteParam mode setting.
if (param != null && param.canWriteProgressive()) {
if (param.getProgressiveMode() ==
ImageWriteParam.MODE_DISABLED) {
imageMetadata.interlaceFlag = false;
} else if (param.getProgressiveMode() ==
ImageWriteParam.MODE_DEFAULT) {
imageMetadata.interlaceFlag = true;
}
}
}
// Unset local color table if equal to global color table.
if (Arrays.equals(globalColorTable, imageMetadata.localColorTable)) {
imageMetadata.localColorTable = null;
}
// Override dimensions
imageMetadata.imageWidth = destSize.width;
imageMetadata.imageHeight = destSize.height;
// Write Graphics Control Extension.
if (writeGraphicsControlExtension) {
writeGraphicControlExtension(imageMetadata);
}
// Write extension blocks.
writePlainTextExtension(imageMetadata);
writeApplicationExtension(imageMetadata);
writeCommentExtension(imageMetadata);
// Write Image Descriptor
int bitsPerPixel =
getNumBits(imageMetadata.localColorTable == null ?
(globalColorTable == null ?
sampleModel.getSampleSize(0) :
globalColorTable.length/3) :
imageMetadata.localColorTable.length/3);
writeImageDescriptor(imageMetadata, bitsPerPixel);
// Write image data
writeRasterData(image, sourceBounds, destSize,
param, imageMetadata.interlaceFlag);
}
/**
* Writes any extension blocks, the Image Descriptor, and the image data
*
* @param iioimage The image and image metadata.
* @param param The write parameters.
* @param globalColorTable The Global Color Table.
* @param sourceBounds The source region.
* @param destSize The destination dimensions.
*/
private void writeImage(RenderedImage image,
GIFWritableImageMetadata imageMetadata,
ImageWriteParam param, byte[] globalColorTable,
Rectangle sourceBounds, Dimension destSize)
throws IOException {
ColorModel colorModel = image.getColorModel();
SampleModel sampleModel = image.getSampleModel();
boolean writeGraphicsControlExtension;
if (imageMetadata == null) {
// Create default metadata.
imageMetadata = (GIFWritableImageMetadata)getDefaultImageMetadata(
new ImageTypeSpecifier(image), param);
// Set GraphicControlExtension flag only if there is
// transparency.
writeGraphicsControlExtension = imageMetadata.transparentColorFlag;
} else {
// Check for GraphicControlExtension element.
NodeList list = null;
try {
IIOMetadataNode root = (IIOMetadataNode)
imageMetadata.getAsTree(IMAGE_METADATA_NAME);
list = root.getElementsByTagName("GraphicControlExtension");
} catch(IllegalArgumentException iae) {
// Should never happen.
}
// Set GraphicControlExtension flag if element present.
writeGraphicsControlExtension =
list != null && list.getLength() > 0;
// If progressive mode is not MODE_COPY_FROM_METADATA, ensure
// the interlacing is set per the ImageWriteParam mode setting.
if (param != null && param.canWriteProgressive()) {
if (param.getProgressiveMode() ==
ImageWriteParam.MODE_DISABLED) {
imageMetadata.interlaceFlag = false;
} else if (param.getProgressiveMode() ==
ImageWriteParam.MODE_DEFAULT) {
imageMetadata.interlaceFlag = true;
}
}
}
// Unset local color table if equal to global color table.
if (Arrays.equals(globalColorTable, imageMetadata.localColorTable)) {
imageMetadata.localColorTable = null;
}
// Override dimensions
imageMetadata.imageWidth = destSize.width;
imageMetadata.imageHeight = destSize.height;
// Write Graphics Control Extension.
if (writeGraphicsControlExtension) {
writeGraphicControlExtension(imageMetadata);
}
// Write extension blocks.
writePlainTextExtension(imageMetadata);
writeApplicationExtension(imageMetadata);
writeCommentExtension(imageMetadata);
// Write Image Descriptor
int bitsPerPixel =
getNumBits(imageMetadata.localColorTable == null ?
(globalColorTable == null ?
sampleModel.getSampleSize(0) :
globalColorTable.length/3) :
imageMetadata.localColorTable.length/3);
writeImageDescriptor(imageMetadata, bitsPerPixel);
// Write image data
writeRasterData(image, sourceBounds, destSize,
param, imageMetadata.interlaceFlag);
}
/**
* Writes any extension blocks, the Image Descriptor, and the image data
*
* @param iioimage The image and image metadata.
* @param param The write parameters.
* @param globalColorTable The Global Color Table.
* @param sourceBounds The source region.
* @param destSize The destination dimensions.
*/
private void writeImage(RenderedImage image,
GIFWritableImageMetadata imageMetadata,
ImageWriteParam param, byte[] globalColorTable,
Rectangle sourceBounds, Dimension destSize)
throws IOException {
ColorModel colorModel = image.getColorModel();
SampleModel sampleModel = image.getSampleModel();
boolean writeGraphicsControlExtension;
if (imageMetadata == null) {
// Create default metadata.
imageMetadata = (GIFWritableImageMetadata)getDefaultImageMetadata(
new ImageTypeSpecifier(image), param);
// Set GraphicControlExtension flag only if there is
// transparency.
writeGraphicsControlExtension = imageMetadata.transparentColorFlag;
} else {
// Check for GraphicControlExtension element.
NodeList list = null;
try {
IIOMetadataNode root = (IIOMetadataNode)
imageMetadata.getAsTree(IMAGE_METADATA_NAME);
list = root.getElementsByTagName("GraphicControlExtension");
} catch(IllegalArgumentException iae) {
// Should never happen.
}
// Set GraphicControlExtension flag if element present.
writeGraphicsControlExtension =
list != null && list.getLength() > 0;
// If progressive mode is not MODE_COPY_FROM_METADATA, ensure
// the interlacing is set per the ImageWriteParam mode setting.
if (param != null && param.canWriteProgressive()) {
if (param.getProgressiveMode() ==
ImageWriteParam.MODE_DISABLED) {
imageMetadata.interlaceFlag = false;
} else if (param.getProgressiveMode() ==
ImageWriteParam.MODE_DEFAULT) {
imageMetadata.interlaceFlag = true;
}
}
}
// Unset local color table if equal to global color table.
if (Arrays.equals(globalColorTable, imageMetadata.localColorTable)) {
imageMetadata.localColorTable = null;
}
// Override dimensions
imageMetadata.imageWidth = destSize.width;
imageMetadata.imageHeight = destSize.height;
// Write Graphics Control Extension.
if (writeGraphicsControlExtension) {
writeGraphicControlExtension(imageMetadata);
}
// Write extension blocks.
writePlainTextExtension(imageMetadata);
writeApplicationExtension(imageMetadata);
writeCommentExtension(imageMetadata);
// Write Image Descriptor
int bitsPerPixel =
getNumBits(imageMetadata.localColorTable == null ?
(globalColorTable == null ?
sampleModel.getSampleSize(0) :
globalColorTable.length/3) :
imageMetadata.localColorTable.length/3);
writeImageDescriptor(imageMetadata, bitsPerPixel);
// Write image data
writeRasterData(image, sourceBounds, destSize,
param, imageMetadata.interlaceFlag);
}
/**
* Writes any extension blocks, the Image Descriptor, and the image data
*
* @param iioimage The image and image metadata.
* @param param The write parameters.
* @param globalColorTable The Global Color Table.
* @param sourceBounds The source region.
* @param destSize The destination dimensions.
*/
private void writeImage(RenderedImage image,
GIFWritableImageMetadata imageMetadata,
ImageWriteParam param, byte[] globalColorTable,
Rectangle sourceBounds, Dimension destSize)
throws IOException {
ColorModel colorModel = image.getColorModel();
SampleModel sampleModel = image.getSampleModel();
boolean writeGraphicsControlExtension;
if (imageMetadata == null) {
// Create default metadata.
imageMetadata = (GIFWritableImageMetadata)getDefaultImageMetadata(
new ImageTypeSpecifier(image), param);
// Set GraphicControlExtension flag only if there is
// transparency.
writeGraphicsControlExtension = imageMetadata.transparentColorFlag;
} else {
// Check for GraphicControlExtension element.
NodeList list = null;
try {
IIOMetadataNode root = (IIOMetadataNode)
imageMetadata.getAsTree(IMAGE_METADATA_NAME);
list = root.getElementsByTagName("GraphicControlExtension");
} catch(IllegalArgumentException iae) {
// Should never happen.
}
// Set GraphicControlExtension flag if element present.
writeGraphicsControlExtension =
list != null && list.getLength() > 0;
// If progressive mode is not MODE_COPY_FROM_METADATA, ensure
// the interlacing is set per the ImageWriteParam mode setting.
if (param != null && param.canWriteProgressive()) {
if (param.getProgressiveMode() ==
ImageWriteParam.MODE_DISABLED) {
imageMetadata.interlaceFlag = false;
} else if (param.getProgressiveMode() ==
ImageWriteParam.MODE_DEFAULT) {
imageMetadata.interlaceFlag = true;
}
}
}
// Unset local color table if equal to global color table.
if (Arrays.equals(globalColorTable, imageMetadata.localColorTable)) {
imageMetadata.localColorTable = null;
}
// Override dimensions
imageMetadata.imageWidth = destSize.width;
imageMetadata.imageHeight = destSize.height;
// Write Graphics Control Extension.
if (writeGraphicsControlExtension) {
writeGraphicControlExtension(imageMetadata);
}
// Write extension blocks.
writePlainTextExtension(imageMetadata);
writeApplicationExtension(imageMetadata);
writeCommentExtension(imageMetadata);
// Write Image Descriptor
int bitsPerPixel =
getNumBits(imageMetadata.localColorTable == null ?
(globalColorTable == null ?
sampleModel.getSampleSize(0) :
globalColorTable.length/3) :
imageMetadata.localColorTable.length/3);
writeImageDescriptor(imageMetadata, bitsPerPixel);
// Write image data
writeRasterData(image, sourceBounds, destSize,
param, imageMetadata.interlaceFlag);
}
/**
* Writes any extension blocks, the Image Descriptor, and the image data
*
* @param iioimage The image and image metadata.
* @param param The write parameters.
* @param globalColorTable The Global Color Table.
* @param sourceBounds The source region.
* @param destSize The destination dimensions.
*/
private void writeImage(RenderedImage image,
GIFWritableImageMetadata imageMetadata,
ImageWriteParam param, byte[] globalColorTable,
Rectangle sourceBounds, Dimension destSize)
throws IOException {
ColorModel colorModel = image.getColorModel();
SampleModel sampleModel = image.getSampleModel();
boolean writeGraphicsControlExtension;
if (imageMetadata == null) {
// Create default metadata.
imageMetadata = (GIFWritableImageMetadata)getDefaultImageMetadata(
new ImageTypeSpecifier(image), param);
// Set GraphicControlExtension flag only if there is
// transparency.
writeGraphicsControlExtension = imageMetadata.transparentColorFlag;
} else {
// Check for GraphicControlExtension element.
NodeList list = null;
try {
IIOMetadataNode root = (IIOMetadataNode)
imageMetadata.getAsTree(IMAGE_METADATA_NAME);
list = root.getElementsByTagName("GraphicControlExtension");
} catch(IllegalArgumentException iae) {
// Should never happen.
}
// Set GraphicControlExtension flag if element present.
writeGraphicsControlExtension =
list != null && list.getLength() > 0;
// If progressive mode is not MODE_COPY_FROM_METADATA, ensure
// the interlacing is set per the ImageWriteParam mode setting.
if (param != null && param.canWriteProgressive()) {
if (param.getProgressiveMode() ==
ImageWriteParam.MODE_DISABLED) {
imageMetadata.interlaceFlag = false;
} else if (param.getProgressiveMode() ==
ImageWriteParam.MODE_DEFAULT) {
imageMetadata.interlaceFlag = true;
}
}
}
// Unset local color table if equal to global color table.
if (Arrays.equals(globalColorTable, imageMetadata.localColorTable)) {
imageMetadata.localColorTable = null;
}
// Override dimensions
imageMetadata.imageWidth = destSize.width;
imageMetadata.imageHeight = destSize.height;
// Write Graphics Control Extension.
if (writeGraphicsControlExtension) {
writeGraphicControlExtension(imageMetadata);
}
// Write extension blocks.
writePlainTextExtension(imageMetadata);
writeApplicationExtension(imageMetadata);
writeCommentExtension(imageMetadata);
// Write Image Descriptor
int bitsPerPixel =
getNumBits(imageMetadata.localColorTable == null ?
(globalColorTable == null ?
sampleModel.getSampleSize(0) :
globalColorTable.length/3) :
imageMetadata.localColorTable.length/3);
writeImageDescriptor(imageMetadata, bitsPerPixel);
// Write image data
writeRasterData(image, sourceBounds, destSize,
param, imageMetadata.interlaceFlag);
}
/**
* Writes any extension blocks, the Image Descriptor, and the image data
*
* @param image The image.
* @param imageMetadata The image metadata.
* @param param The write parameters.
* @param globalColorTable The Global Color Table.
* @param sourceBounds The source region.
* @param destSize The destination dimensions.
*/
private void writeImage(RenderedImage image,
GIFWritableImageMetadata imageMetadata,
ImageWriteParam param, byte[] globalColorTable,
Rectangle sourceBounds, Dimension destSize)
throws IOException {
ColorModel colorModel = image.getColorModel();
SampleModel sampleModel = image.getSampleModel();
boolean writeGraphicsControlExtension;
if (imageMetadata == null) {
// Create default metadata.
imageMetadata = (GIFWritableImageMetadata)getDefaultImageMetadata(
new ImageTypeSpecifier(image), param);
// Set GraphicControlExtension flag only if there is
// transparency.
writeGraphicsControlExtension = imageMetadata.transparentColorFlag;
} else {
// Check for GraphicControlExtension element.
NodeList list = null;
try {
IIOMetadataNode root = (IIOMetadataNode)
imageMetadata.getAsTree(IMAGE_METADATA_NAME);
list = root.getElementsByTagName("GraphicControlExtension");
} catch(IllegalArgumentException iae) {
// Should never happen.
}
// Set GraphicControlExtension flag if element present.
writeGraphicsControlExtension =
list != null && list.getLength() > 0;
// If progressive mode is not MODE_COPY_FROM_METADATA, ensure
// the interlacing is set per the ImageWriteParam mode setting.
if (param != null && param.canWriteProgressive()) {
if (param.getProgressiveMode() ==
ImageWriteParam.MODE_DISABLED) {
imageMetadata.interlaceFlag = false;
} else if (param.getProgressiveMode() ==
ImageWriteParam.MODE_DEFAULT) {
imageMetadata.interlaceFlag = true;
}
}
}
// Unset local color table if equal to global color table.
if (Arrays.equals(globalColorTable, imageMetadata.localColorTable)) {
imageMetadata.localColorTable = null;
}
// Override dimensions
imageMetadata.imageWidth = destSize.width;
imageMetadata.imageHeight = destSize.height;
// Write Graphics Control Extension.
if (writeGraphicsControlExtension) {
writeGraphicControlExtension(imageMetadata);
}
// Write extension blocks.
writePlainTextExtension(imageMetadata);
writeApplicationExtension(imageMetadata);
writeCommentExtension(imageMetadata);
// Write Image Descriptor
int bitsPerPixel =
getNumBits(imageMetadata.localColorTable == null ?
(globalColorTable == null ?
sampleModel.getSampleSize(0) :
globalColorTable.length/3) :
imageMetadata.localColorTable.length/3);
writeImageDescriptor(imageMetadata, bitsPerPixel);
// Write image data
writeRasterData(image, sourceBounds, destSize,
param, imageMetadata.interlaceFlag);
}
/**
* Writes any extension blocks, the Image Descriptor, and the image data
*
* @param image The image.
* @param imageMetadata The image metadata.
* @param param The write parameters.
* @param globalColorTable The Global Color Table.
* @param sourceBounds The source region.
* @param destSize The destination dimensions.
*/
private void writeImage(RenderedImage image,
GIFWritableImageMetadata imageMetadata,
ImageWriteParam param, byte[] globalColorTable,
Rectangle sourceBounds, Dimension destSize)
throws IOException {
ColorModel colorModel = image.getColorModel();
SampleModel sampleModel = image.getSampleModel();
boolean writeGraphicsControlExtension;
if (imageMetadata == null) {
// Create default metadata.
imageMetadata = (GIFWritableImageMetadata)getDefaultImageMetadata(
new ImageTypeSpecifier(image), param);
// Set GraphicControlExtension flag only if there is
// transparency.
writeGraphicsControlExtension = imageMetadata.transparentColorFlag;
} else {
// Check for GraphicControlExtension element.
NodeList list = null;
try {
IIOMetadataNode root = (IIOMetadataNode)
imageMetadata.getAsTree(IMAGE_METADATA_NAME);
list = root.getElementsByTagName("GraphicControlExtension");
} catch(IllegalArgumentException iae) {
// Should never happen.
}
// Set GraphicControlExtension flag if element present.
writeGraphicsControlExtension =
list != null && list.getLength() > 0;
// If progressive mode is not MODE_COPY_FROM_METADATA, ensure
// the interlacing is set per the ImageWriteParam mode setting.
if (param != null && param.canWriteProgressive()) {
if (param.getProgressiveMode() ==
ImageWriteParam.MODE_DISABLED) {
imageMetadata.interlaceFlag = false;
} else if (param.getProgressiveMode() ==
ImageWriteParam.MODE_DEFAULT) {
imageMetadata.interlaceFlag = true;
}
}
}
// Unset local color table if equal to global color table.
if (Arrays.equals(globalColorTable, imageMetadata.localColorTable)) {
imageMetadata.localColorTable = null;
}
// Override dimensions
imageMetadata.imageWidth = destSize.width;
imageMetadata.imageHeight = destSize.height;
// Write Graphics Control Extension.
if (writeGraphicsControlExtension) {
writeGraphicControlExtension(imageMetadata);
}
// Write extension blocks.
writePlainTextExtension(imageMetadata);
writeApplicationExtension(imageMetadata);
writeCommentExtension(imageMetadata);
// Write Image Descriptor
int bitsPerPixel =
getNumBits(imageMetadata.localColorTable == null ?
(globalColorTable == null ?
sampleModel.getSampleSize(0) :
globalColorTable.length/3) :
imageMetadata.localColorTable.length/3);
writeImageDescriptor(imageMetadata, bitsPerPixel);
// Write image data
writeRasterData(image, sourceBounds, destSize,
param, imageMetadata.interlaceFlag);
}
/**
* Writes any extension blocks, the Image Descriptor, and the image data
*
* @param iioimage The image and image metadata.
* @param param The write parameters.
* @param globalColorTable The Global Color Table.
* @param sourceBounds The source region.
* @param destSize The destination dimensions.
*/
private void writeImage(RenderedImage image,
GIFWritableImageMetadata imageMetadata,
ImageWriteParam param, byte[] globalColorTable,
Rectangle sourceBounds, Dimension destSize)
throws IOException {
ColorModel colorModel = image.getColorModel();
SampleModel sampleModel = image.getSampleModel();
boolean writeGraphicsControlExtension;
if (imageMetadata == null) {
// Create default metadata.
imageMetadata = (GIFWritableImageMetadata)getDefaultImageMetadata(
new ImageTypeSpecifier(image), param);
// Set GraphicControlExtension flag only if there is
// transparency.
writeGraphicsControlExtension = imageMetadata.transparentColorFlag;
} else {
// Check for GraphicControlExtension element.
NodeList list = null;
try {
IIOMetadataNode root = (IIOMetadataNode)
imageMetadata.getAsTree(IMAGE_METADATA_NAME);
list = root.getElementsByTagName("GraphicControlExtension");
} catch(IllegalArgumentException iae) {
// Should never happen.
}
// Set GraphicControlExtension flag if element present.
writeGraphicsControlExtension =
list != null && list.getLength() > 0;
// If progressive mode is not MODE_COPY_FROM_METADATA, ensure
// the interlacing is set per the ImageWriteParam mode setting.
if (param != null && param.canWriteProgressive()) {
if (param.getProgressiveMode() ==
ImageWriteParam.MODE_DISABLED) {
imageMetadata.interlaceFlag = false;
} else if (param.getProgressiveMode() ==
ImageWriteParam.MODE_DEFAULT) {
imageMetadata.interlaceFlag = true;
}
}
}
// Unset local color table if equal to global color table.
if (Arrays.equals(globalColorTable, imageMetadata.localColorTable)) {
imageMetadata.localColorTable = null;
}
// Override dimensions
imageMetadata.imageWidth = destSize.width;
imageMetadata.imageHeight = destSize.height;
// Write Graphics Control Extension.
if (writeGraphicsControlExtension) {
writeGraphicControlExtension(imageMetadata);
}
// Write extension blocks.
writePlainTextExtension(imageMetadata);
writeApplicationExtension(imageMetadata);
writeCommentExtension(imageMetadata);
// Write Image Descriptor
int bitsPerPixel =
getNumBits(imageMetadata.localColorTable == null ?
(globalColorTable == null ?
sampleModel.getSampleSize(0) :
globalColorTable.length/3) :
imageMetadata.localColorTable.length/3);
writeImageDescriptor(imageMetadata, bitsPerPixel);
// Write image data
writeRasterData(image, sourceBounds, destSize,
param, imageMetadata.interlaceFlag);
}
/**
* Writes any extension blocks, the Image Descriptor, and the image data
*
* @param iioimage The image and image metadata.
* @param param The write parameters.
* @param globalColorTable The Global Color Table.
* @param sourceBounds The source region.
* @param destSize The destination dimensions.
*/
private void writeImage(RenderedImage image,
GIFWritableImageMetadata imageMetadata,
ImageWriteParam param, byte[] globalColorTable,
Rectangle sourceBounds, Dimension destSize)
throws IOException {
ColorModel colorModel = image.getColorModel();
SampleModel sampleModel = image.getSampleModel();
boolean writeGraphicsControlExtension;
if (imageMetadata == null) {
// Create default metadata.
imageMetadata = (GIFWritableImageMetadata)getDefaultImageMetadata(
new ImageTypeSpecifier(image), param);
// Set GraphicControlExtension flag only if there is
// transparency.
writeGraphicsControlExtension = imageMetadata.transparentColorFlag;
} else {
// Check for GraphicControlExtension element.
NodeList list = null;
try {
IIOMetadataNode root = (IIOMetadataNode)
imageMetadata.getAsTree(IMAGE_METADATA_NAME);
list = root.getElementsByTagName("GraphicControlExtension");
} catch(IllegalArgumentException iae) {
// Should never happen.
}
// Set GraphicControlExtension flag if element present.
writeGraphicsControlExtension =
list != null && list.getLength() > 0;
// If progressive mode is not MODE_COPY_FROM_METADATA, ensure
// the interlacing is set per the ImageWriteParam mode setting.
if (param != null && param.canWriteProgressive()) {
if (param.getProgressiveMode() ==
ImageWriteParam.MODE_DISABLED) {
imageMetadata.interlaceFlag = false;
} else if (param.getProgressiveMode() ==
ImageWriteParam.MODE_DEFAULT) {
imageMetadata.interlaceFlag = true;
}
}
}
// Unset local color table if equal to global color table.
if (Arrays.equals(globalColorTable, imageMetadata.localColorTable)) {
imageMetadata.localColorTable = null;
}
// Override dimensions
imageMetadata.imageWidth = destSize.width;
imageMetadata.imageHeight = destSize.height;
// Write Graphics Control Extension.
if (writeGraphicsControlExtension) {
writeGraphicControlExtension(imageMetadata);
}
// Write extension blocks.
writePlainTextExtension(imageMetadata);
writeApplicationExtension(imageMetadata);
writeCommentExtension(imageMetadata);
// Write Image Descriptor
int bitsPerPixel =
getNumBits(imageMetadata.localColorTable == null ?
(globalColorTable == null ?
sampleModel.getSampleSize(0) :
globalColorTable.length/3) :
imageMetadata.localColorTable.length/3);
writeImageDescriptor(imageMetadata, bitsPerPixel);
// Write image data
writeRasterData(image, sourceBounds, destSize,
param, imageMetadata.interlaceFlag);
}
/**
* Writes any extension blocks, the Image Descriptor, and the image data
*
* @param iioimage The image and image metadata.
* @param param The write parameters.
* @param globalColorTable The Global Color Table.
* @param sourceBounds The source region.
* @param destSize The destination dimensions.
*/
private void writeImage(RenderedImage image,
GIFWritableImageMetadata imageMetadata,
ImageWriteParam param, byte[] globalColorTable,
Rectangle sourceBounds, Dimension destSize)
throws IOException {
ColorModel colorModel = image.getColorModel();
SampleModel sampleModel = image.getSampleModel();
boolean writeGraphicsControlExtension;
if (imageMetadata == null) {
// Create default metadata.
imageMetadata = (GIFWritableImageMetadata)getDefaultImageMetadata(
new ImageTypeSpecifier(image), param);
// Set GraphicControlExtension flag only if there is
// transparency.
writeGraphicsControlExtension = imageMetadata.transparentColorFlag;
} else {
// Check for GraphicControlExtension element.
NodeList list = null;
try {
IIOMetadataNode root = (IIOMetadataNode)
imageMetadata.getAsTree(IMAGE_METADATA_NAME);
list = root.getElementsByTagName("GraphicControlExtension");
} catch(IllegalArgumentException iae) {
// Should never happen.
}
// Set GraphicControlExtension flag if element present.
writeGraphicsControlExtension =
list != null && list.getLength() > 0;
// If progressive mode is not MODE_COPY_FROM_METADATA, ensure
// the interlacing is set per the ImageWriteParam mode setting.
if (param != null && param.canWriteProgressive()) {
if (param.getProgressiveMode() ==
ImageWriteParam.MODE_DISABLED) {
imageMetadata.interlaceFlag = false;
} else if (param.getProgressiveMode() ==
ImageWriteParam.MODE_DEFAULT) {
imageMetadata.interlaceFlag = true;
}
}
}
// Unset local color table if equal to global color table.
if (Arrays.equals(globalColorTable, imageMetadata.localColorTable)) {
imageMetadata.localColorTable = null;
}
// Override dimensions
imageMetadata.imageWidth = destSize.width;
imageMetadata.imageHeight = destSize.height;
// Write Graphics Control Extension.
if (writeGraphicsControlExtension) {
writeGraphicControlExtension(imageMetadata);
}
// Write extension blocks.
writePlainTextExtension(imageMetadata);
writeApplicationExtension(imageMetadata);
writeCommentExtension(imageMetadata);
// Write Image Descriptor
int bitsPerPixel =
getNumBits(imageMetadata.localColorTable == null ?
(globalColorTable == null ?
sampleModel.getSampleSize(0) :
globalColorTable.length/3) :
imageMetadata.localColorTable.length/3);
writeImageDescriptor(imageMetadata, bitsPerPixel);
// Write image data
writeRasterData(image, sourceBounds, destSize,
param, imageMetadata.interlaceFlag);
}
/**
* Writes any extension blocks, the Image Descriptor, and the image data
*
* @param iioimage The image and image metadata.
* @param param The write parameters.
* @param globalColorTable The Global Color Table.
* @param sourceBounds The source region.
* @param destSize The destination dimensions.
*/
private void writeImage(RenderedImage image,
GIFWritableImageMetadata imageMetadata,
ImageWriteParam param, byte[] globalColorTable,
Rectangle sourceBounds, Dimension destSize)
throws IOException {
ColorModel colorModel = image.getColorModel();
SampleModel sampleModel = image.getSampleModel();
boolean writeGraphicsControlExtension;
if (imageMetadata == null) {
// Create default metadata.
imageMetadata = (GIFWritableImageMetadata)getDefaultImageMetadata(
new ImageTypeSpecifier(image), param);
// Set GraphicControlExtension flag only if there is
// transparency.
writeGraphicsControlExtension = imageMetadata.transparentColorFlag;
} else {
// Check for GraphicControlExtension element.
NodeList list = null;
try {
IIOMetadataNode root = (IIOMetadataNode)
imageMetadata.getAsTree(IMAGE_METADATA_NAME);
list = root.getElementsByTagName("GraphicControlExtension");
} catch(IllegalArgumentException iae) {
// Should never happen.
}
// Set GraphicControlExtension flag if element present.
writeGraphicsControlExtension =
list != null && list.getLength() > 0;
// If progressive mode is not MODE_COPY_FROM_METADATA, ensure
// the interlacing is set per the ImageWriteParam mode setting.
if (param != null && param.canWriteProgressive()) {
if (param.getProgressiveMode() ==
ImageWriteParam.MODE_DISABLED) {
imageMetadata.interlaceFlag = false;
} else if (param.getProgressiveMode() ==
ImageWriteParam.MODE_DEFAULT) {
imageMetadata.interlaceFlag = true;
}
}
}
// Unset local color table if equal to global color table.
if (Arrays.equals(globalColorTable, imageMetadata.localColorTable)) {
imageMetadata.localColorTable = null;
}
// Override dimensions
imageMetadata.imageWidth = destSize.width;
imageMetadata.imageHeight = destSize.height;
// Write Graphics Control Extension.
if (writeGraphicsControlExtension) {
writeGraphicControlExtension(imageMetadata);
}
// Write extension blocks.
writePlainTextExtension(imageMetadata);
writeApplicationExtension(imageMetadata);
writeCommentExtension(imageMetadata);
// Write Image Descriptor
int bitsPerPixel =
getNumBits(imageMetadata.localColorTable == null ?
(globalColorTable == null ?
sampleModel.getSampleSize(0) :
globalColorTable.length/3) :
imageMetadata.localColorTable.length/3);
writeImageDescriptor(imageMetadata, bitsPerPixel);
// Write image data
writeRasterData(image, sourceBounds, destSize,
param, imageMetadata.interlaceFlag);
}
/**
* Writes any extension blocks, the Image Descriptor, and the image data
*
* @param iioimage The image and image metadata.
* @param param The write parameters.
* @param globalColorTable The Global Color Table.
* @param sourceBounds The source region.
* @param destSize The destination dimensions.
*/
private void writeImage(RenderedImage image,
GIFWritableImageMetadata imageMetadata,
ImageWriteParam param, byte[] globalColorTable,
Rectangle sourceBounds, Dimension destSize)
throws IOException {
ColorModel colorModel = image.getColorModel();
SampleModel sampleModel = image.getSampleModel();
boolean writeGraphicsControlExtension;
if (imageMetadata == null) {
// Create default metadata.
imageMetadata = (GIFWritableImageMetadata)getDefaultImageMetadata(
new ImageTypeSpecifier(image), param);
// Set GraphicControlExtension flag only if there is
// transparency.
writeGraphicsControlExtension = imageMetadata.transparentColorFlag;
} else {
// Check for GraphicControlExtension element.
NodeList list = null;
try {
IIOMetadataNode root = (IIOMetadataNode)
imageMetadata.getAsTree(IMAGE_METADATA_NAME);
list = root.getElementsByTagName("GraphicControlExtension");
} catch(IllegalArgumentException iae) {
// Should never happen.
}
// Set GraphicControlExtension flag if element present.
writeGraphicsControlExtension =
list != null && list.getLength() > 0;
// If progressive mode is not MODE_COPY_FROM_METADATA, ensure
// the interlacing is set per the ImageWriteParam mode setting.
if (param != null && param.canWriteProgressive()) {
if (param.getProgressiveMode() ==
ImageWriteParam.MODE_DISABLED) {
imageMetadata.interlaceFlag = false;
} else if (param.getProgressiveMode() ==
ImageWriteParam.MODE_DEFAULT) {
imageMetadata.interlaceFlag = true;
}
}
}
// Unset local color table if equal to global color table.
if (Arrays.equals(globalColorTable, imageMetadata.localColorTable)) {
imageMetadata.localColorTable = null;
}
// Override dimensions
imageMetadata.imageWidth = destSize.width;
imageMetadata.imageHeight = destSize.height;
// Write Graphics Control Extension.
if (writeGraphicsControlExtension) {
writeGraphicControlExtension(imageMetadata);
}
// Write extension blocks.
writePlainTextExtension(imageMetadata);
writeApplicationExtension(imageMetadata);
writeCommentExtension(imageMetadata);
// Write Image Descriptor
int bitsPerPixel =
getNumBits(imageMetadata.localColorTable == null ?
(globalColorTable == null ?
sampleModel.getSampleSize(0) :
globalColorTable.length/3) :
imageMetadata.localColorTable.length/3);
writeImageDescriptor(imageMetadata, bitsPerPixel);
// Write image data
writeRasterData(image, sourceBounds, destSize,
param, imageMetadata.interlaceFlag);
}
/**
* Writes any extension blocks, the Image Descriptor, and the image data
*
* @param iioimage The image and image metadata.
* @param param The write parameters.
* @param globalColorTable The Global Color Table.
* @param sourceBounds The source region.
* @param destSize The destination dimensions.
*/
private void writeImage(RenderedImage image,
GIFWritableImageMetadata imageMetadata,
ImageWriteParam param, byte[] globalColorTable,
Rectangle sourceBounds, Dimension destSize)
throws IOException {
ColorModel colorModel = image.getColorModel();
SampleModel sampleModel = image.getSampleModel();
boolean writeGraphicsControlExtension;
if (imageMetadata == null) {
// Create default metadata.
imageMetadata = (GIFWritableImageMetadata)getDefaultImageMetadata(
new ImageTypeSpecifier(image), param);
// Set GraphicControlExtension flag only if there is
// transparency.
writeGraphicsControlExtension = imageMetadata.transparentColorFlag;
} else {
// Check for GraphicControlExtension element.
NodeList list = null;
try {
IIOMetadataNode root = (IIOMetadataNode)
imageMetadata.getAsTree(IMAGE_METADATA_NAME);
list = root.getElementsByTagName("GraphicControlExtension");
} catch(IllegalArgumentException iae) {
// Should never happen.
}
// Set GraphicControlExtension flag if element present.
writeGraphicsControlExtension =
list != null && list.getLength() > 0;
// If progressive mode is not MODE_COPY_FROM_METADATA, ensure
// the interlacing is set per the ImageWriteParam mode setting.
if (param != null && param.canWriteProgressive()) {
if (param.getProgressiveMode() ==
ImageWriteParam.MODE_DISABLED) {
imageMetadata.interlaceFlag = false;
} else if (param.getProgressiveMode() ==
ImageWriteParam.MODE_DEFAULT) {
imageMetadata.interlaceFlag = true;
}
}
}
// Unset local color table if equal to global color table.
if (Arrays.equals(globalColorTable, imageMetadata.localColorTable)) {
imageMetadata.localColorTable = null;
}
// Override dimensions
imageMetadata.imageWidth = destSize.width;
imageMetadata.imageHeight = destSize.height;
// Write Graphics Control Extension.
if (writeGraphicsControlExtension) {
writeGraphicControlExtension(imageMetadata);
}
// Write extension blocks.
writePlainTextExtension(imageMetadata);
writeApplicationExtension(imageMetadata);
writeCommentExtension(imageMetadata);
// Write Image Descriptor
int bitsPerPixel =
getNumBits(imageMetadata.localColorTable == null ?
(globalColorTable == null ?
sampleModel.getSampleSize(0) :
globalColorTable.length/3) :
imageMetadata.localColorTable.length/3);
writeImageDescriptor(imageMetadata, bitsPerPixel);
// Write image data
writeRasterData(image, sourceBounds, destSize,
param, imageMetadata.interlaceFlag);
}
/**
* Writes any extension blocks, the Image Descriptor, and the image data
*
* @param iioimage The image and image metadata.
* @param param The write parameters.
* @param globalColorTable The Global Color Table.
* @param sourceBounds The source region.
* @param destSize The destination dimensions.
*/
private void writeImage(RenderedImage image,
GIFWritableImageMetadata imageMetadata,
ImageWriteParam param, byte[] globalColorTable,
Rectangle sourceBounds, Dimension destSize)
throws IOException {
ColorModel colorModel = image.getColorModel();
SampleModel sampleModel = image.getSampleModel();
boolean writeGraphicsControlExtension;
if (imageMetadata == null) {
// Create default metadata.
imageMetadata = (GIFWritableImageMetadata)getDefaultImageMetadata(
new ImageTypeSpecifier(image), param);
// Set GraphicControlExtension flag only if there is
// transparency.
writeGraphicsControlExtension = imageMetadata.transparentColorFlag;
} else {
// Check for GraphicControlExtension element.
NodeList list = null;
try {
IIOMetadataNode root = (IIOMetadataNode)
imageMetadata.getAsTree(IMAGE_METADATA_NAME);
list = root.getElementsByTagName("GraphicControlExtension");
} catch(IllegalArgumentException iae) {
// Should never happen.
}
// Set GraphicControlExtension flag if element present.
writeGraphicsControlExtension =
list != null && list.getLength() > 0;
// If progressive mode is not MODE_COPY_FROM_METADATA, ensure
// the interlacing is set per the ImageWriteParam mode setting.
if (param != null && param.canWriteProgressive()) {
if (param.getProgressiveMode() ==
ImageWriteParam.MODE_DISABLED) {
imageMetadata.interlaceFlag = false;
} else if (param.getProgressiveMode() ==
ImageWriteParam.MODE_DEFAULT) {
imageMetadata.interlaceFlag = true;
}
}
}
// Unset local color table if equal to global color table.
if (Arrays.equals(globalColorTable, imageMetadata.localColorTable)) {
imageMetadata.localColorTable = null;
}
// Override dimensions
imageMetadata.imageWidth = destSize.width;
imageMetadata.imageHeight = destSize.height;
// Write Graphics Control Extension.
if (writeGraphicsControlExtension) {
writeGraphicControlExtension(imageMetadata);
}
// Write extension blocks.
writePlainTextExtension(imageMetadata);
writeApplicationExtension(imageMetadata);
writeCommentExtension(imageMetadata);
// Write Image Descriptor
int bitsPerPixel =
getNumBits(imageMetadata.localColorTable == null ?
(globalColorTable == null ?
sampleModel.getSampleSize(0) :
globalColorTable.length/3) :
imageMetadata.localColorTable.length/3);
writeImageDescriptor(imageMetadata, bitsPerPixel);
// Write image data
writeRasterData(image, sourceBounds, destSize,
param, imageMetadata.interlaceFlag);
}