batik-codec/src/main/java/org/apache/batik/ext/awt/image/codec/png/PNGImageDecoder.java [150:312]: - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - public static final int PNG_COLOR_GRAY = 0; public static final int PNG_COLOR_RGB = 2; public static final int PNG_COLOR_PALETTE = 3; public static final int PNG_COLOR_GRAY_ALPHA = 4; public static final int PNG_COLOR_RGB_ALPHA = 6; private static final String[] colorTypeNames = { "Grayscale", "Error", "Truecolor", "Index", "Grayscale with alpha", "Error", "Truecolor with alpha" }; public static final int PNG_FILTER_NONE = 0; public static final int PNG_FILTER_SUB = 1; public static final int PNG_FILTER_UP = 2; public static final int PNG_FILTER_AVERAGE = 3; public static final int PNG_FILTER_PAETH = 4; private int[][] bandOffsets = { null, { 0 }, // G { 0, 1 }, // GA in GA order { 0, 1, 2 }, // RGB in RGB order { 0, 1, 2, 3 } // RGBA in RGBA order }; private int bitDepth; private int colorType; private int compressionMethod; private int filterMethod; private int interlaceMethod; private int paletteEntries; private byte[] redPalette; private byte[] greenPalette; private byte[] bluePalette; private byte[] alphaPalette; private int bkgdRed; private int bkgdGreen; private int bkgdBlue; private int grayTransparentAlpha; private int redTransparentAlpha; private int greenTransparentAlpha; private int blueTransparentAlpha; private int maxOpacity; private int[] significantBits = null; // Parameter information // If true, the user wants destination alpha where applicable. private boolean suppressAlpha = false; // If true, perform palette lookup internally private boolean expandPalette = false; // If true, output < 8 bit gray images in 8 bit components format private boolean output8BitGray = false; // Create an alpha channel in the destination color model. private boolean outputHasAlphaPalette = false; // Perform gamma correction on the image private boolean performGammaCorrection = false; // Expand GA to GGGA for compatbility with Java2D private boolean expandGrayAlpha = false; // Produce an instance of PNGEncodeParam private boolean generateEncodeParam = false; // PNGDecodeParam controlling decode process private PNGDecodeParam decodeParam = null; // PNGEncodeParam to store file details in private PNGEncodeParam encodeParam = null; private boolean emitProperties = true; private float fileGamma = 45455/100000.0F; private float userExponent = 1.0F; private float displayExponent = 2.2F; private float[] chromaticity = null; private int sRGBRenderingIntent = -1; // Post-processing step implied by above parameters private int postProcess = POST_NONE; // Possible post-processing steps // Do nothing private static final int POST_NONE = 0; // Gamma correct only private static final int POST_GAMMA = 1; // Push gray values through grayLut to expand to 8 bits private static final int POST_GRAY_LUT = 2; // Push gray values through grayLut to expand to 8 bits, add alpha private static final int POST_GRAY_LUT_ADD_TRANS = 3; // Push palette value through R,G,B lookup tables private static final int POST_PALETTE_TO_RGB = 4; // Push palette value through R,G,B,A lookup tables private static final int POST_PALETTE_TO_RGBA = 5; // Add transparency to a given gray value (w/ optional gamma) private static final int POST_ADD_GRAY_TRANS = 6; // Add transparency to a given RGB value (w/ optional gamma) private static final int POST_ADD_RGB_TRANS = 7; // Remove the alpha channel from a gray image (w/ optional gamma) private static final int POST_REMOVE_GRAY_TRANS = 8; // Remove the alpha channel from an RGB image (w/optional gamma) private static final int POST_REMOVE_RGB_TRANS = 9; // Mask to add expansion of GA -> GGGA private static final int POST_EXP_MASK = 16; // Expand gray to G/G/G private static final int POST_GRAY_ALPHA_EXP = POST_NONE | POST_EXP_MASK; // Expand gray to G/G/G through a gamma lut private static final int POST_GAMMA_EXP = POST_GAMMA | POST_EXP_MASK; // Push gray values through grayLut to expand to 8 bits, expand, add alpha private static final int POST_GRAY_LUT_ADD_TRANS_EXP = POST_GRAY_LUT_ADD_TRANS | POST_EXP_MASK; // Add transparency to a given gray value, expand private static final int POST_ADD_GRAY_TRANS_EXP = POST_ADD_GRAY_TRANS | POST_EXP_MASK; private List streamVec = new ArrayList(); private DataInputStream dataStream; private int bytesPerPixel; // number of bytes per input pixel private int inputBands; private int outputBands; // Number of private chunks private int chunkIndex = 0; private List textKeys = new ArrayList(); private List textStrings = new ArrayList(); private List ztextKeys = new ArrayList(); private List ztextStrings = new ArrayList(); private WritableRaster theTile; - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - batik-codec/src/main/java/org/apache/batik/ext/awt/image/codec/png/PNGRed.java [135:297]: - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - public static final int PNG_COLOR_GRAY = 0; public static final int PNG_COLOR_RGB = 2; public static final int PNG_COLOR_PALETTE = 3; public static final int PNG_COLOR_GRAY_ALPHA = 4; public static final int PNG_COLOR_RGB_ALPHA = 6; private static final String[] colorTypeNames = { "Grayscale", "Error", "Truecolor", "Index", "Grayscale with alpha", "Error", "Truecolor with alpha" }; public static final int PNG_FILTER_NONE = 0; public static final int PNG_FILTER_SUB = 1; public static final int PNG_FILTER_UP = 2; public static final int PNG_FILTER_AVERAGE = 3; public static final int PNG_FILTER_PAETH = 4; private int[][] bandOffsets = { null, { 0 }, // G { 0, 1 }, // GA in GA order { 0, 1, 2 }, // RGB in RGB order { 0, 1, 2, 3 } // RGBA in RGBA order }; private int bitDepth; private int colorType; private int compressionMethod; private int filterMethod; private int interlaceMethod; private int paletteEntries; private byte[] redPalette; private byte[] greenPalette; private byte[] bluePalette; private byte[] alphaPalette; private int bkgdRed; private int bkgdGreen; private int bkgdBlue; private int grayTransparentAlpha; private int redTransparentAlpha; private int greenTransparentAlpha; private int blueTransparentAlpha; private int maxOpacity; private int[] significantBits = null; // Parameter information // If true, the user wants destination alpha where applicable. private boolean suppressAlpha = false; // If true, perform palette lookup internally private boolean expandPalette = false; // If true, output < 8 bit gray images in 8 bit components format private boolean output8BitGray = false; // Create an alpha channel in the destination color model. private boolean outputHasAlphaPalette = false; // Perform gamma correction on the image private boolean performGammaCorrection = false; // Expand GA to GGGA for compatbility with Java2D private boolean expandGrayAlpha = false; // Produce an instance of PNGEncodeParam private boolean generateEncodeParam = false; // PNGDecodeParam controlling decode process private PNGDecodeParam decodeParam = null; // PNGEncodeParam to store file details in private PNGEncodeParam encodeParam = null; private boolean emitProperties = true; private float fileGamma = 45455/100000.0F; private float userExponent = 1.0F; private float displayExponent = 2.2F; private float[] chromaticity = null; private int sRGBRenderingIntent = -1; // Post-processing step implied by above parameters private int postProcess = POST_NONE; // Possible post-processing steps // Do nothing private static final int POST_NONE = 0; // Gamma correct only private static final int POST_GAMMA = 1; // Push gray values through grayLut to expand to 8 bits private static final int POST_GRAY_LUT = 2; // Push gray values through grayLut to expand to 8 bits, add alpha private static final int POST_GRAY_LUT_ADD_TRANS = 3; // Push palette value through R,G,B lookup tables private static final int POST_PALETTE_TO_RGB = 4; // Push palette value through R,G,B,A lookup tables private static final int POST_PALETTE_TO_RGBA = 5; // Add transparency to a given gray value (w/ optional gamma) private static final int POST_ADD_GRAY_TRANS = 6; // Add transparency to a given RGB value (w/ optional gamma) private static final int POST_ADD_RGB_TRANS = 7; // Remove the alpha channel from a gray image (w/ optional gamma) private static final int POST_REMOVE_GRAY_TRANS = 8; // Remove the alpha channel from an RGB image (w/optional gamma) private static final int POST_REMOVE_RGB_TRANS = 9; // Mask to add expansion of GA -> GGGA private static final int POST_EXP_MASK = 16; // Expand gray to G/G/G private static final int POST_GRAY_ALPHA_EXP = POST_NONE | POST_EXP_MASK; // Expand gray to G/G/G through a gamma lut private static final int POST_GAMMA_EXP = POST_GAMMA | POST_EXP_MASK; // Push gray values through grayLut to expand to 8 bits, expand, add alpha private static final int POST_GRAY_LUT_ADD_TRANS_EXP = POST_GRAY_LUT_ADD_TRANS | POST_EXP_MASK; // Add transparency to a given gray value, expand private static final int POST_ADD_GRAY_TRANS_EXP = POST_ADD_GRAY_TRANS | POST_EXP_MASK; private List streamVec = new ArrayList(); private DataInputStream dataStream; private int bytesPerPixel; // number of bytes per input pixel private int inputBands; private int outputBands; // Number of private chunks private int chunkIndex = 0; private List textKeys = new ArrayList(); private List textStrings = new ArrayList(); private List ztextKeys = new ArrayList(); private List ztextStrings = new ArrayList(); private WritableRaster theTile; - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -