Examples with DataBufferByte java.awt.image.DataBufferByte used on opensource projects

Example 11 with DataBufferByte

use of java.awt.image.DataBufferByte in project nutz by nutzam.

the class Images method createJPEG4.

/**
     * Java's ImageIO can't process 4-component images and Java2D can't apply
     * AffineTransformOp either, so convert raster data to RGB. Technique due to
     * MArk Stephens. Free for any use.
     */
private static BufferedImage createJPEG4(Raster raster) {
    int w = raster.getWidth();
    int h = raster.getHeight();
    byte[] rgb = new byte[w * h * 3];
    float[] Y = raster.getSamples(0, 0, w, h, 0, (float[]) null);
    float[] Cb = raster.getSamples(0, 0, w, h, 1, (float[]) null);
    float[] Cr = raster.getSamples(0, 0, w, h, 2, (float[]) null);
    float[] K = raster.getSamples(0, 0, w, h, 3, (float[]) null);
    for (int i = 0, imax = Y.length, base = 0; i < imax; i++, base += 3) {
        float k = 220 - K[i], y = 255 - Y[i], cb = 255 - Cb[i], cr = 255 - Cr[i];
        double val = y + 1.402 * (cr - 128) - k;
        val = (val - 128) * .65f + 128;
        rgb[base] = val < 0.0 ? (byte) 0 : val > 255.0 ? (byte) 0xff : (byte) (val + 0.5);
        val = y - 0.34414 * (cb - 128) - 0.71414 * (cr - 128) - k;
        val = (val - 128) * .65f + 128;
        rgb[base + 1] = val < 0.0 ? (byte) 0 : val > 255.0 ? (byte) 0xff : (byte) (val + 0.5);
        val = y + 1.772 * (cb - 128) - k;
        val = (val - 128) * .65f + 128;
        rgb[base + 2] = val < 0.0 ? (byte) 0 : val > 255.0 ? (byte) 0xff : (byte) (val + 0.5);
    }
    raster = Raster.createInterleavedRaster(new DataBufferByte(rgb, rgb.length), w, h, w * 3, 3, new int[] { 0, 1, 2 }, null);
    ColorSpace cs = ColorSpace.getInstance(ColorSpace.CS_sRGB);
    ColorModel cm = new ComponentColorModel(cs, false, true, Transparency.OPAQUE, DataBuffer.TYPE_BYTE);
    return new BufferedImage(cm, (WritableRaster) raster, true, null);
}

Example 12 with DataBufferByte

use of java.awt.image.DataBufferByte in project scriptographer by scriptographer.

the class Raster method drawImage.

public void drawImage(Image image, int x, int y) {
    BufferedImage buf;
    // a new one:
    if (image instanceof BufferedImage && getColorModel().isCompatibleSampleModel(((BufferedImage) image).getSampleModel())) {
        buf = (BufferedImage) image;
    } else {
        buf = createCompatibleImage(image.getWidth(null), image.getHeight(null));
        buf.createGraphics().drawImage(image, x, y, null);
    }
    WritableRaster raster = buf.getRaster();
    byte[] data = ((DataBufferByte) raster.getDataBuffer()).getData();
    nativeSetPixels(data, raster.getNumBands(), x, y, buf.getWidth(), buf.getHeight());
}

Example 13 with DataBufferByte

use of java.awt.image.DataBufferByte in project scriptographer by scriptographer.

the class Raster method getSubImage.

public BufferedImage getSubImage(int x, int y, int width, int height) {
    if (width == -1 || height == -1) {
        Size size = getSize();
        if (width == -1)
            width = (int) size.width;
        if (height == -1)
            height = (int) size.height;
    }
    BufferedImage img = createCompatibleImage(width, height);
    Graphics2D g2d = img.createGraphics();
    g2d.setColor(java.awt.Color.WHITE);
    //		g2d.setComposite(AlphaComposite.getInstance(AlphaComposite.CLEAR, 0));
    g2d.fillRect(0, 0, width, height);
    g2d.dispose();
    WritableRaster raster = img.getRaster();
    byte[] data = ((DataBufferByte) raster.getDataBuffer()).getData();
    nativeGetPixels(data, raster.getNumBands(), x, y, width, height);
    return img;
}

Example 14 with DataBufferByte

use of java.awt.image.DataBufferByte in project playn by threerings.

the class JavaGLContext method updateTexture.

void updateTexture(int tex, BufferedImage image) {
    // Convert the image into a format for quick uploading
    image = convertImage(image);
    DataBuffer dbuf = image.getRaster().getDataBuffer();
    ByteBuffer bbuf;
    int format, type;
    if (image.getType() == BufferedImage.TYPE_INT_ARGB_PRE) {
        DataBufferInt ibuf = (DataBufferInt) dbuf;
        int iSize = ibuf.getSize() * 4;
        bbuf = checkGetImageBuffer(iSize);
        bbuf.asIntBuffer().put(ibuf.getData());
        bbuf.position(bbuf.position() + iSize);
        bbuf.flip();
        format = GL12.GL_BGRA;
        type = GL12.GL_UNSIGNED_INT_8_8_8_8_REV;
    } else if (image.getType() == BufferedImage.TYPE_4BYTE_ABGR) {
        DataBufferByte dbbuf = (DataBufferByte) dbuf;
        bbuf = checkGetImageBuffer(dbbuf.getSize());
        bbuf.put(dbbuf.getData());
        bbuf.flip();
        format = GL11.GL_RGBA;
        type = GL12.GL_UNSIGNED_INT_8_8_8_8;
    } else {
        // except we don't know how to deal with it
        throw new RuntimeException("Image type wasn't converted to usable: " + image.getType());
    }
    bindTexture(tex);
    GL11.glTexImage2D(GL11.GL_TEXTURE_2D, 0, GL11.GL_RGBA, image.getWidth(), image.getHeight(), 0, format, type, bbuf);
    checkGLError("updateTexture");
}

Example 15 with DataBufferByte

use of java.awt.image.DataBufferByte in project lwjgl by LWJGL.

the class TextureLoader method convertImageData.

/**
     * Convert the buffered image to a texture
     *
     * @param bufferedImage The image to convert to a texture
     * @param texture The texture to store the data into
     * @return A buffer containing the data
     */
private ByteBuffer convertImageData(BufferedImage bufferedImage, Texture texture) {
    ByteBuffer imageBuffer;
    WritableRaster raster;
    BufferedImage texImage;
    int texWidth = 2;
    int texHeight = 2;
    // of the produced texture
    while (texWidth < bufferedImage.getWidth()) {
        texWidth *= 2;
    }
    while (texHeight < bufferedImage.getHeight()) {
        texHeight *= 2;
    }
    texture.setTextureHeight(texHeight);
    texture.setTextureWidth(texWidth);
    // for a texture
    if (bufferedImage.getColorModel().hasAlpha()) {
        raster = Raster.createInterleavedRaster(DataBuffer.TYPE_BYTE, texWidth, texHeight, 4, null);
        texImage = new BufferedImage(glAlphaColorModel, raster, false, new Hashtable());
    } else {
        raster = Raster.createInterleavedRaster(DataBuffer.TYPE_BYTE, texWidth, texHeight, 3, null);
        texImage = new BufferedImage(glColorModel, raster, false, new Hashtable());
    }
    // copy the source image into the produced image
    Graphics g = texImage.getGraphics();
    g.setColor(new Color(0f, 0f, 0f, 0f));
    g.fillRect(0, 0, texWidth, texHeight);
    g.drawImage(bufferedImage, 0, 0, null);
    // build a byte buffer from the temporary image
    // that be used by OpenGL to produce a texture.
    byte[] data = ((DataBufferByte) texImage.getRaster().getDataBuffer()).getData();
    imageBuffer = ByteBuffer.allocateDirect(data.length);
    imageBuffer.order(ByteOrder.nativeOrder());
    imageBuffer.put(data, 0, data.length);
    imageBuffer.flip();
    return imageBuffer;
}