Examples with Image com.jme3.texture.Image used on opensource projects

Example 1 with Image

use of com.jme3.texture.Image in project jmonkeyengine by jMonkeyEngine.

the class MipMapGenerator method scaleImage.

public static Image scaleImage(Image inputImage, int outputWidth, int outputHeight) {
    int size = outputWidth * outputHeight * inputImage.getFormat().getBitsPerPixel() / 8;
    ByteBuffer buffer = BufferUtils.createByteBuffer(size);
    Image outputImage = new Image(inputImage.getFormat(), outputWidth, outputHeight, buffer, inputImage.getColorSpace());
    ImageRaster input = ImageRaster.create(inputImage, 0, 0, false);
    ImageRaster output = ImageRaster.create(outputImage, 0, 0, false);
    float xRatio = ((float) (input.getWidth() - 1)) / output.getWidth();
    float yRatio = ((float) (input.getHeight() - 1)) / output.getHeight();
    ColorRGBA outputColor = new ColorRGBA();
    ColorRGBA bottomLeft = new ColorRGBA();
    ColorRGBA bottomRight = new ColorRGBA();
    ColorRGBA topLeft = new ColorRGBA();
    ColorRGBA topRight = new ColorRGBA();
    for (int y = 0; y < outputHeight; y++) {
        for (int x = 0; x < outputWidth; x++) {
            float x2f = x * xRatio;
            float y2f = y * yRatio;
            int x2 = (int) x2f;
            int y2 = (int) y2f;
            float xDiff = x2f - x2;
            float yDiff = y2f - y2;
            input.getPixel(x2, y2, bottomLeft);
            input.getPixel(x2 + 1, y2, bottomRight);
            input.getPixel(x2, y2 + 1, topLeft);
            input.getPixel(x2 + 1, y2 + 1, topRight);
            bottomLeft.multLocal((1f - xDiff) * (1f - yDiff));
            bottomRight.multLocal((xDiff) * (1f - yDiff));
            topLeft.multLocal((1f - xDiff) * (yDiff));
            topRight.multLocal((xDiff) * (yDiff));
            outputColor.set(bottomLeft).addLocal(bottomRight).addLocal(topLeft).addLocal(topRight);
            output.setPixel(x, y, outputColor);
        }
    }
    return outputImage;
}

Example 2 with Image

use of com.jme3.texture.Image in project jmonkeyengine by jMonkeyEngine.

the class MipMapGenerator method generateMipMaps.

public static void generateMipMaps(Image image) {
    int width = image.getWidth();
    int height = image.getHeight();
    Image current = image;
    ArrayList<ByteBuffer> output = new ArrayList<ByteBuffer>();
    int totalSize = 0;
    while (height >= 1 || width >= 1) {
        output.add(current.getData(0));
        totalSize += current.getData(0).capacity();
        if (height == 1 || width == 1) {
            break;
        }
        height /= 2;
        width /= 2;
        current = scaleImage(current, width, height);
    }
    ByteBuffer combinedData = BufferUtils.createByteBuffer(totalSize);
    int[] mipSizes = new int[output.size()];
    for (int i = 0; i < output.size(); i++) {
        ByteBuffer data = output.get(i);
        data.clear();
        combinedData.put(data);
        mipSizes[i] = data.capacity();
    }
    combinedData.flip();
    // insert mip data into image
    image.setData(0, combinedData);
    image.setMipMapSizes(mipSizes);
}

Example 3 with Image

use of com.jme3.texture.Image in project jmonkeyengine by jMonkeyEngine.

the class PlaceholderAssets method getPlaceholderImage.

@Deprecated
public static Image getPlaceholderImage() {
    ByteBuffer tempData = BufferUtils.createByteBuffer(3 * 4 * 4);
    tempData.put(imageData).flip();
    return new Image(Format.RGB8, 4, 4, tempData, null, ColorSpace.Linear);
}

Example 4 with Image

use of com.jme3.texture.Image in project jmonkeyengine by jMonkeyEngine.

the class SkyFactory method checkImagesForCubeMap.

private static void checkImagesForCubeMap(Image... images) {
    if (images.length == 1) {
        return;
    }
    Format fmt = images[0].getFormat();
    int width = images[0].getWidth();
    int height = images[0].getHeight();
    ByteBuffer data = images[0].getData(0);
    int size = data != null ? data.capacity() : 0;
    checkImage(images[0]);
    for (int i = 1; i < images.length; i++) {
        Image image = images[i];
        checkImage(images[i]);
        if (image.getFormat() != fmt) {
            throw new IllegalArgumentException("Images must have same format");
        }
        if (image.getWidth() != width || image.getHeight() != height) {
            throw new IllegalArgumentException("Images must have same resolution");
        }
        ByteBuffer data2 = image.getData(0);
        if (data2 != null) {
            if (data2.capacity() != size) {
                throw new IllegalArgumentException("Images must have same size");
            }
        }
    }
}

Example 5 with Image

use of com.jme3.texture.Image in project jmonkeyengine by jMonkeyEngine.

the class DefaultImageRaster method getPixel.

@Override
public ColorRGBA getPixel(int x, int y, ColorRGBA store) {
    rangeCheck(x, y);
    codec.readComponents(getBuffer(), x, y, width, offset, components, temp);
    if (store == null) {
        store = new ColorRGBA();
    }
    switch(codec.type) {
        case ImageCodec.FLAG_F16:
            store.set(FastMath.convertHalfToFloat((short) components[1]), FastMath.convertHalfToFloat((short) components[2]), FastMath.convertHalfToFloat((short) components[3]), FastMath.convertHalfToFloat((short) components[0]));
            break;
        case ImageCodec.FLAG_F32:
            store.set(Float.intBitsToFloat((int) components[1]), Float.intBitsToFloat((int) components[2]), Float.intBitsToFloat((int) components[3]), Float.intBitsToFloat((int) components[0]));
            break;
        case 0:
            // Convert to float and divide by bitsize to get into range 0.0 - 1.0.
            store.set((float) components[1] / codec.maxRed, (float) components[2] / codec.maxGreen, (float) components[3] / codec.maxBlue, (float) components[0] / codec.maxAlpha);
            break;
    }
    if (codec.isGray) {
        store.g = store.b = store.r;
    } else {
        if (codec.maxRed == 0) {
            store.r = 1;
        }
        if (codec.maxGreen == 0) {
            store.g = 1;
        }
        if (codec.maxBlue == 0) {
            store.b = 1;
        }
        if (codec.maxAlpha == 0) {
            store.a = 1;
        }
    }
    if (convertToLinear) {
        // Input image is sRGB, need to convert to linear.
        store.setAsSrgb(store.r, store.g, store.b, store.a);
    }
    return store;
}