Java Code Examples for com.badlogic.gdx.graphics.Pixmap#getFormat()

@Override
public void consumeCubemapData () {
	for(int level = 0 ; level<levels ; level++){
		for (int i = 0; i < 6; i++) {
			int index = level * 6 + i;
			if (data[index].getType() == TextureData.TextureDataType.Custom) {
				data[index].consumeCustomData(GL20.GL_TEXTURE_CUBE_MAP_POSITIVE_X + i);
			} else {
				Pixmap pixmap = data[index].consumePixmap();
				boolean disposePixmap = data[index].disposePixmap();
				if (data[index].getFormat() != pixmap.getFormat()) {
					Pixmap tmp = new Pixmap(pixmap.getWidth(), pixmap.getHeight(), data[index].getFormat());
					tmp.setBlending(Blending.None);
					tmp.drawPixmap(pixmap, 0, 0, 0, 0, pixmap.getWidth(), pixmap.getHeight());
					if (data[index].disposePixmap()) pixmap.dispose();
					pixmap = tmp;
					disposePixmap = true;
				}
				Gdx.gl.glPixelStorei(GL20.GL_UNPACK_ALIGNMENT, 1);
				Gdx.gl.glTexImage2D(GL20.GL_TEXTURE_CUBE_MAP_POSITIVE_X + i, level, pixmap.getGLInternalFormat(), pixmap.getWidth(),
					pixmap.getHeight(), 0, pixmap.getGLFormat(), pixmap.getGLType(), pixmap.getPixels());
				if (disposePixmap) pixmap.dispose();
			}
		}
	}
}
 

/**
 * Splits the image 
 * @param image
 * @param width
 * @param height
 * @param row
 * @param col
 * @return
 */
public static Pixmap[] splitPixmap(Pixmap image, int width, int height, int row, int col) {                
    int total = col * row; // total returned images
    int frame = 0; // frame counter

    int w = width / col;
    int h = height / row;

    Pixmap[] images = new Pixmap[total];

    for (int j = 0; j < row; j++) {
        for (int i = 0; i < col; i++) {                
            Pixmap region = new Pixmap(w, h, image.getFormat());
            region.drawPixmap(image, 0, 0, i * w, j * h, w, h);
            
            images[frame++] = region;
        }
    }

    return images;
}
 

/**
 * Transforms byte[] to Texture Region.
 * <p>
 * If you are going to call this method inside firebase callback remember to wrap it<p>
 * into {@code Gdx.app.postRunnable(Runnable)}.
 * The texture will be changed so that it has sides with length of power of 2.
 *
 * @param bytes Byte array with image description
 * @return Texture region representation of given byte array
 */
public TextureRegion createTextureFromBytes(byte[] bytes) {
    Pixmap pixmap = new Pixmap(bytes, 0, bytes.length);
    final int orgWidth = pixmap.getWidth();
    final int orgHeight = pixmap.getHeight();
    int width = MathUtils.nextPowerOfTwo(orgWidth);
    int height = MathUtils.nextPowerOfTwo(orgHeight);
    final Pixmap potPixmap = new Pixmap(width, height, pixmap.getFormat());
    potPixmap.drawPixmap(pixmap, 0, 0, 0, 0, pixmap.getWidth(), pixmap.getHeight());
    pixmap.dispose();
    TextureRegion region = new TextureRegion(new Texture(potPixmap), 0, 0, orgWidth, orgHeight);
    potPixmap.dispose();
    return region;
}
 

/**
 * Returns a copy of the given pixmap, cropped about the given dimensions.
 */
public static Pixmap crop(Pixmap pixmap, int left, int bottom, int width, int height) {

	Pixmap result = new Pixmap(width, height, pixmap.getFormat());
	result.drawPixmap(pixmap, 0, 0, left, bottom, width, height);

	return result;
}
 

protected static void generate(FileHandle file) {
  final long startTime = System.currentTimeMillis();
  startExecutor();
  Pixmap weak = generate(0.5f);
  Pixmap strong = generate(0.1f);

  Pixmap out = new Pixmap(weak.getWidth(), weak.getHeight(), weak.getFormat());
  Color outColor = new Color();
  Color tempColor = new Color();
  for (int x = 0; x < out.getWidth(); x++) {
    for (int y = 0; y < out.getHeight(); y++) {
      outColor.r = tempColor.set(weak.getPixel(x, y)).r;
      outColor.g = tempColor.set(strong.getPixel(x, y)).r;
      outColor.b = 1f;
      outColor.a = 1f;
      out.drawPixel(x, y, Color.rgba8888(outColor));
    }
  }
  weak.dispose();
  strong.dispose();

  System.out.println("Took " + ((System.currentTimeMillis() - startTime) / 1000 / 60) + " minutes");
  System.out.println("Writing to: " + file.path());
  System.out.println();

  PixmapIO.writePNG(file, out);
  out.dispose();
}
 

/**
 *
 * @param file 8-bit PNG file heightmap data
 * @param heightScale vertical scaling (y axis)
 * @param widthScale width on the x-z plane (distance between points)
 * @param whiteHigh height is represented by white (instead of black)
 */
public HeightMap(FileHandle file, float heightScale, float widthScale, boolean whiteHigh, int smoothingPasses) {
	// TODO whiteHigh seems to breaking the normals
	this.heightScale = heightScale;
	this.widthScale = widthScale;

	Pixmap pix = new Pixmap(file);
	if (pix.getFormat() != Pixmap.Format.Alpha) {
		throw new GdxRuntimeException("Pixmap must be format Pixmap.Alpha (8-bit Grayscale), not: " + pix.getFormat());
	}
	int pixWidth = pix.getWidth();
	int pixHeight = pix.getHeight();
	int w = pixWidth;
	int h = pixHeight;
	System.out.println("w,h: " + w + ", " + h);
	heights = new float[h][w];

	boolean countWidth = true;
	for (int z = 0; z < pixHeight; z ++) {
		depth++;
		for (int x = 0; x < pixWidth; x ++) {
			if (countWidth) width++;
			//System.out.printf("pix value: (%d, %d): %d\n", x, z,  pix.getPixel(x, z));
			int height;
			if (whiteHigh) {
				height = 256 - (-1 * pix.getPixel(x, z));
			} else {
				height = -1 * pix.getPixel(x, z);
			}
			heights[z][x] = height;
			numPoints++;
		}
		countWidth = false;
	}
	smoothVertexPositions(smoothingPasses);
	updateDimensions();
}
 

Lwjgl3Mini2DxCursor(Lwjgl3Mini2DxWindow window, Pixmap pixmap, int xHotspot, int yHotspot) {
	this.window = window;
	if (pixmap.getFormat() != Pixmap.Format.RGBA8888) {
		throw new GdxRuntimeException("Cursor image pixmap is not in RGBA8888 format.");
	}

	if ((pixmap.getWidth() & (pixmap.getWidth() - 1)) != 0) {
		throw new GdxRuntimeException(
				"Cursor image pixmap width of " + pixmap.getWidth() + " is not a power-of-two greater than zero.");
	}

	if ((pixmap.getHeight() & (pixmap.getHeight() - 1)) != 0) {
		throw new GdxRuntimeException("Cursor image pixmap height of " + pixmap.getHeight()
				+ " is not a power-of-two greater than zero.");
	}

	if (xHotspot < 0 || xHotspot >= pixmap.getWidth()) {
		throw new GdxRuntimeException("xHotspot coordinate of " + xHotspot
				+ " is not within image width bounds: [0, " + pixmap.getWidth() + ").");
	}

	if (yHotspot < 0 || yHotspot >= pixmap.getHeight()) {
		throw new GdxRuntimeException("yHotspot coordinate of " + yHotspot
				+ " is not within image height bounds: [0, " + pixmap.getHeight() + ").");
	}

	this.pixmapCopy = new Pixmap(pixmap.getWidth(), pixmap.getHeight(), Pixmap.Format.RGBA8888);
	this.pixmapCopy.setBlending(Pixmap.Blending.None);
	this.pixmapCopy.drawPixmap(pixmap, 0, 0);

	glfwImage = GLFWImage.malloc();
	glfwImage.width(pixmapCopy.getWidth());
	glfwImage.height(pixmapCopy.getHeight());
	glfwImage.pixels(pixmapCopy.getPixels());
	glfwCursor = GLFW.glfwCreateCursor(glfwImage, xHotspot, yHotspot);
	cursors.add(this);
}
 

public static Pixmap getRotatedMirroredCopy(Pixmap pixmap, Mirror mirror, Rotate rotate){

		Pixmap mirrored = new Pixmap(pixmap.getWidth(), pixmap.getHeight(), pixmap.getFormat());
		copyToMirrored(pixmap, mirrored, mirror);

		int newWidth = PixmapTransform.getWidth(pixmap, rotate);
		int newHeight = PixmapTransform.getHeight(pixmap, rotate);

		Pixmap copy = new Pixmap(newWidth, newHeight, pixmap.getFormat());
		copyToRotated(mirrored, copy, rotate);

		/** Only temp for copying around */
		mirrored.dispose();

		return copy;
	}
 

public static Pixmap subPixmap(Pixmap pix, int x, int y, int width, int height) {
    Pixmap sub = new Pixmap(width, height, pix.getFormat());
    sub.drawPixmap(pix, x, y, width, height, 0, 0, width, height);
    return sub;
}
 

/**
 * Resizes the image
 *
 * @param image
 * @param width
 * @param height
 * @return
 */
public static Pixmap resizePixmap(Pixmap image, int width, int height) {
    Pixmap pix = new Pixmap(width, height, image.getFormat());
    pix.drawPixmap(image, 0, 0, width, height, // destination
             0, 0, image.getWidth(), image.getHeight()); // source                         
    return pix;
}