javax.imageio.plugins.tiff.TIFFField#getAsLong ( )源码实例Demo

下面列出了javax.imageio.plugins.tiff.TIFFField#getAsLong ( ) 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。

源代码1 项目： Bytecoder 文件： TIFFImageReader.java

private long getTileOrStripOffset(int tileIndex) throws IIOException {
    TIFFField f
            = imageMetadata.getTIFFField(BaselineTIFFTagSet.TAG_TILE_OFFSETS);
    if (f == null) {
        f = imageMetadata.getTIFFField(BaselineTIFFTagSet.TAG_STRIP_OFFSETS);
    }
    if (f == null) {
        f = imageMetadata.getTIFFField(BaselineTIFFTagSet.TAG_JPEG_INTERCHANGE_FORMAT);
    }

    if (f == null) {
        throw new IIOException("Missing required strip or tile offsets field.");
    }

    return f.getAsLong(tileIndex);
}

源代码2 项目： openjdk-jdk9 文件： TIFFImageReader.java

private long getTileOrStripOffset(int tileIndex) throws IIOException {
    TIFFField f
            = imageMetadata.getTIFFField(BaselineTIFFTagSet.TAG_TILE_OFFSETS);
    if (f == null) {
        f = imageMetadata.getTIFFField(BaselineTIFFTagSet.TAG_STRIP_OFFSETS);
    }
    if (f == null) {
        f = imageMetadata.getTIFFField(BaselineTIFFTagSet.TAG_JPEG_INTERCHANGE_FORMAT);
    }

    if (f == null) {
        throw new IIOException("Missing required strip or tile offsets field.");
    }

    return f.getAsLong(tileIndex);
}

源代码3 项目： Bytecoder 文件： TIFFImageReader.java

private long getTileOrStripByteCount(int tileIndex) throws IOException {
    TIFFField f
            = imageMetadata.getTIFFField(BaselineTIFFTagSet.TAG_TILE_BYTE_COUNTS);
    if (f == null) {
        f
                = imageMetadata.getTIFFField(BaselineTIFFTagSet.TAG_STRIP_BYTE_COUNTS);
    }
    if (f == null) {
        f = imageMetadata.getTIFFField(BaselineTIFFTagSet.TAG_JPEG_INTERCHANGE_FORMAT_LENGTH);
    }

    long tileOrStripByteCount;
    if (f != null) {
        tileOrStripByteCount = f.getAsLong(tileIndex);
    } else {
        processWarningOccurred("TIFF directory contains neither StripByteCounts nor TileByteCounts field: attempting to calculate from strip or tile width and height.");

        // Initialize to number of bytes per strip or tile assuming
        // no compression.
        int bitsPerPixel = bitsPerSample[0];
        for (int i = 1; i < samplesPerPixel; i++) {
            bitsPerPixel += bitsPerSample[i];
        }
        int bytesPerRow = (getTileOrStripWidth() * bitsPerPixel + 7) / 8;
        tileOrStripByteCount = bytesPerRow * getTileOrStripHeight();

        // Clamp to end of stream if possible.
        long streamLength = stream.length();
        if (streamLength != -1) {
            tileOrStripByteCount
                    = Math.min(tileOrStripByteCount,
                            streamLength - getTileOrStripOffset(tileIndex));
        } else {
            processWarningOccurred("Stream length is unknown: cannot clamp estimated strip or tile byte count to EOF.");
        }
    }

    return tileOrStripByteCount;
}

源代码4 项目： openjdk-jdk9 文件： TIFFImageReader.java

private long getTileOrStripByteCount(int tileIndex) throws IOException {
    TIFFField f
            = imageMetadata.getTIFFField(BaselineTIFFTagSet.TAG_TILE_BYTE_COUNTS);
    if (f == null) {
        f
                = imageMetadata.getTIFFField(BaselineTIFFTagSet.TAG_STRIP_BYTE_COUNTS);
    }
    if (f == null) {
        f = imageMetadata.getTIFFField(BaselineTIFFTagSet.TAG_JPEG_INTERCHANGE_FORMAT_LENGTH);
    }

    long tileOrStripByteCount;
    if (f != null) {
        tileOrStripByteCount = f.getAsLong(tileIndex);
    } else {
        processWarningOccurred("TIFF directory contains neither StripByteCounts nor TileByteCounts field: attempting to calculate from strip or tile width and height.");

        // Initialize to number of bytes per strip or tile assuming
        // no compression.
        int bitsPerPixel = bitsPerSample[0];
        for (int i = 1; i < samplesPerPixel; i++) {
            bitsPerPixel += bitsPerSample[i];
        }
        int bytesPerRow = (getTileOrStripWidth() * bitsPerPixel + 7) / 8;
        tileOrStripByteCount = bytesPerRow * getTileOrStripHeight();

        // Clamp to end of stream if possible.
        long streamLength = stream.length();
        if (streamLength != -1) {
            tileOrStripByteCount
                    = Math.min(tileOrStripByteCount,
                            streamLength - getTileOrStripOffset(tileIndex));
        } else {
            processWarningOccurred("Stream length is unknown: cannot clamp estimated strip or tile byte count to EOF.");
        }
    }

    return tileOrStripByteCount;
}

源代码5 项目： Bytecoder 文件： TIFFIFD.java

private long getFieldAsLong(int tagNumber) {
    TIFFField f = getTIFFField(tagNumber);
    return f == null ? -1 : f.getAsLong(0);
}

源代码6 项目： openjdk-jdk9 文件： TIFFIFD.java

private long getFieldAsLong(int tagNumber) {
    TIFFField f = getTIFFField(tagNumber);
    return f == null ? -1 : f.getAsLong(0);
}

方法所在类

javax.imageio.plugins.tiff.TIFFField