Examples with IIOException javax.imageio.IIOException used on opensource projects

Example 26 with IIOException

use of javax.imageio.IIOException in project jdk8u_jdk by JetBrains.

the class GIFImageWriteParam method writeGraphicControlExtension.

private void writeGraphicControlExtension(int disposalMethod, boolean userInputFlag, boolean transparentColorFlag, int delayTime, int transparentColorIndex) throws IOException {
    try {
        stream.write(0x21);
        stream.write(0xf9);
        stream.write(4);
        int packedFields = (disposalMethod & 0x3) << 2;
        if (userInputFlag) {
            packedFields |= 0x2;
        }
        if (transparentColorFlag) {
            packedFields |= 0x1;
        }
        stream.write(packedFields);
        stream.writeShort((short) delayTime);
        stream.write(transparentColorIndex);
        stream.write(0x00);
    } catch (IOException e) {
        throw new IIOException("I/O error writing Graphic Control Extension!", e);
    }
}

Example 27 with IIOException

use of javax.imageio.IIOException in project jdk8u_jdk by JetBrains.

the class GIFImageWriteParam method writePlainTextExtension.

private void writePlainTextExtension(GIFWritableImageMetadata im) throws IOException {
    if (im.hasPlainTextExtension) {
        try {
            stream.write(0x21);
            stream.write(0x1);
            stream.write(12);
            stream.writeShort(im.textGridLeft);
            stream.writeShort(im.textGridTop);
            stream.writeShort(im.textGridWidth);
            stream.writeShort(im.textGridHeight);
            stream.write(im.characterCellWidth);
            stream.write(im.characterCellHeight);
            stream.write(im.textForegroundColor);
            stream.write(im.textBackgroundColor);
            writeBlocks(im.text);
            stream.write(0x00);
        } catch (IOException e) {
            throw new IIOException("I/O error writing Plain Text Extension!", e);
        }
    }
}

Example 28 with IIOException

use of javax.imageio.IIOException in project jdk8u_jdk by JetBrains.

the class GIFImageWriteParam method writeHeader.

private void writeHeader(String version, int logicalScreenWidth, int logicalScreenHeight, int colorResolution, int pixelAspectRatio, int backgroundColorIndex, boolean sortFlag, int bitsPerPixel, byte[] globalColorTable) throws IOException {
    try {
        // Signature
        stream.writeBytes("GIF" + version);
        // Screen Descriptor
        // Width
        stream.writeShort((short) logicalScreenWidth);
        // Height
        stream.writeShort((short) logicalScreenHeight);
        // Global Color Table
        // Packed fields
        int packedFields = globalColorTable != null ? 0x80 : 0x00;
        packedFields |= ((colorResolution - 1) & 0x7) << 4;
        if (sortFlag) {
            packedFields |= 0x8;
        }
        packedFields |= (bitsPerPixel - 1);
        stream.write(packedFields);
        // Background color index
        stream.write(backgroundColorIndex);
        // Pixel aspect ratio
        stream.write(pixelAspectRatio);
        // Global Color Table
        if (globalColorTable != null) {
            stream.write(globalColorTable);
        }
    } catch (IOException e) {
        throw new IIOException("I/O error writing header!", e);
    }
}

Example 29 with IIOException

use of javax.imageio.IIOException in project jdk8u_jdk by JetBrains.

the class GIFImageWriteParam method writeApplicationExtension.

private void writeApplicationExtension(GIFWritableImageMetadata im) throws IOException {
    if (im.applicationIDs != null) {
        Iterator iterIDs = im.applicationIDs.iterator();
        Iterator iterCodes = im.authenticationCodes.iterator();
        Iterator iterData = im.applicationData.iterator();
        while (iterIDs.hasNext()) {
            try {
                stream.write(0x21);
                stream.write(0xff);
                stream.write(11);
                stream.write((byte[]) iterIDs.next(), 0, 8);
                stream.write((byte[]) iterCodes.next(), 0, 3);
                writeBlocks((byte[]) iterData.next());
                stream.write(0x00);
            } catch (IOException e) {
                throw new IIOException("I/O error writing Application Extension!", e);
            }
        }
    }
}

Example 30 with IIOException

use of javax.imageio.IIOException in project jdk8u_jdk by JetBrains.

the class GIFImageReader method locateImage.

private int locateImage(int imageIndex) throws IIOException {
    readHeader();
    try {
        // Find closest known index
        int index = Math.min(imageIndex, imageStartPosition.size() - 1);
        // Seek to that position
        Long l = (Long) imageStartPosition.get(index);
        stream.seek(l.longValue());
        // Skip images until at desired index or last image found
        while (index < imageIndex) {
            if (!skipImage()) {
                --index;
                return index;
            }
            Long l1 = new Long(stream.getStreamPosition());
            imageStartPosition.add(l1);
            ++index;
        }
    } catch (IOException e) {
        throw new IIOException("Couldn't seek!", e);
    }
    if (currIndex != imageIndex) {
        imageMetadata = null;
    }
    currIndex = imageIndex;
    return imageIndex;
}