Java Code Examples for org.newdawn.slick.Image#getColor()

The following examples show how to use org.newdawn.slick.Image#getColor() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: CurveRenderState.java    From opsu-dance with GNU General Public License v3.0 6 votes vote down vote up 
/**
 * Reads the first row of the slider gradient texture and upload it as
 * a 1D texture to OpenGL if it hasn't already been done.
 */
public void initGradient() {
	if (gradientTexture == 0) {
		Image slider = GameImage.SLIDER_GRADIENT.getImage().getScaledCopy(1.0f / GameImage.getUIscale());
		staticState.gradientTexture = GL11.glGenTextures();
		ByteBuffer buff = BufferUtils.createByteBuffer(slider.getWidth() * 4);
		for (int i = 0; i < slider.getWidth(); ++i) {
			Color col = slider.getColor(i, 0);
			buff.put((byte) (255 * col.b));
			buff.put((byte) (255 * col.b)); // I know this looks strange...
			buff.put((byte) (255 * col.b));
			buff.put((byte) (255 * col.a));
		}
		buff.flip();
		GL11.glBindTexture(GL11.GL_TEXTURE_1D, gradientTexture);
		GL11.glTexImage1D(GL11.GL_TEXTURE_1D, 0, GL11.GL_RGBA, slider.getWidth(), 0, GL11.GL_RGBA, GL11.GL_UNSIGNED_BYTE, buff);
		EXTFramebufferObject.glGenerateMipmapEXT(GL11.GL_TEXTURE_1D);
	}
}
Example 2
Source File: LegacyCurveRenderState.java    From opsu with GNU General Public License v3.0 6 votes vote down vote up 
/**
 * Reads the first row of the slider gradient texture and upload it as
 * a 1D texture to OpenGL if it hasn't already been done.
 */
public void initGradient() {
	if (gradientTexture == 0) {
		Image slider = GameImage.SLIDER_GRADIENT_EXPERIMENTAL.getImage().getScaledCopy(1.0f / GameImage.getUIscale());
		staticState.gradientTexture = GL11.glGenTextures();
		ByteBuffer buff = BufferUtils.createByteBuffer(slider.getWidth() * 4);
		for (int i = 0; i < slider.getWidth(); ++i) {
			Color col = slider.getColor(i, 0);
			buff.put((byte) (255 * col.r));
			buff.put((byte) (255 * col.g));
			buff.put((byte) (255 * col.b));
			buff.put((byte) (255 * col.a));
		}
		buff.flip();
		GL11.glBindTexture(GL11.GL_TEXTURE_1D, gradientTexture);
		GL11.glTexImage1D(GL11.GL_TEXTURE_1D, 0, GL11.GL_RGBA, slider.getWidth(), 0, GL11.GL_RGBA, GL11.GL_UNSIGNED_BYTE, buff);
		EXTFramebufferObject.glGenerateMipmapEXT(GL11.GL_TEXTURE_1D);
	}
}
Example 3
Source File: CurveRenderState.java    From opsu with GNU General Public License v3.0 6 votes vote down vote up 
/**
 * Reads the first row of the slider gradient texture and upload it as
 * a 1D texture to OpenGL if it hasn't already been done.
 */
public void initGradient() {
	if (gradientTexture == 0) {
		Image slider = GameImage.SLIDER_GRADIENT.getImage().getScaledCopy(1.0f / GameImage.getUIscale());
		staticState.gradientTexture = GL11.glGenTextures();
		ByteBuffer buff = BufferUtils.createByteBuffer(slider.getWidth() * 4);
		for (int i = 0; i < slider.getWidth(); ++i) {
			Color col = slider.getColor(i, 0);
			buff.put((byte) (255 * col.r));
			buff.put((byte) (255 * col.g));
			buff.put((byte) (255 * col.b));
			buff.put((byte) (255 * col.a));
		}
		buff.flip();
		GL11.glBindTexture(GL11.GL_TEXTURE_1D, gradientTexture);
		GL11.glTexImage1D(GL11.GL_TEXTURE_1D, 0, GL11.GL_RGBA, slider.getWidth(), 0, GL11.GL_RGBA, GL11.GL_UNSIGNED_BYTE, buff);
		ContextCapabilities capabilities = GLContext.getCapabilities();
		if (capabilities.OpenGL30) {
			GL30.glGenerateMipmap(GL11.GL_TEXTURE_1D);
		} else if (capabilities.GL_EXT_framebuffer_object) {
			EXTFramebufferObject.glGenerateMipmapEXT(GL11.GL_TEXTURE_1D);
		} else {
			GL11.glTexParameteri(GL11.GL_TEXTURE_1D, GL14.GL_GENERATE_MIPMAP, GL11.GL_TRUE);
		}
	}
}
Example 4
Source File: ImageReadTest.java    From slick2d-maven with BSD 3-Clause "New" or "Revised" License 5 votes vote down vote up 
/**
 * @see org.newdawn.slick.BasicGame#init(org.newdawn.slick.GameContainer)
 */
public void init(GameContainer container) throws SlickException {
	image = new Image("testdata/testcard.png");
	read[0] = image.getColor(0, 0);
	read[1] = image.getColor(30, 40);
	read[2] = image.getColor(55, 70);
	read[3] = image.getColor(80, 90);
}
Example 5
Source File: TGAWriter.java    From slick2d-maven with BSD 3-Clause "New" or "Revised" License 4 votes vote down vote up 
/**
 * @see org.newdawn.slick.imageout.ImageWriter#saveImage(org.newdawn.slick.Image, java.lang.String, java.io.OutputStream, boolean)
 */
public void saveImage(Image image, String format, OutputStream output, boolean writeAlpha) throws IOException {
	DataOutputStream out = new DataOutputStream(new BufferedOutputStream(output));

	// ID Length
	out.writeByte((byte) 0);

	// Color Map
	out.writeByte((byte) 0);

	// Image Type
	out.writeByte((byte) 2);

	// Color Map - Ignored
	out.writeShort(flipEndian((short) 0));
	out.writeShort(flipEndian((short) 0));
	out.writeByte((byte) 0);

	// X, Y Offset
	out.writeShort(flipEndian((short) 0));
	out.writeShort(flipEndian((short) 0));

	// Width, Height, Depth
	out.writeShort(flipEndian((short) image.getWidth()));
	out.writeShort(flipEndian((short) image.getHeight()));
	if (writeAlpha) {
		out.writeByte((byte) 32);
		// Image Descriptor (can't be 0 since we're using 32-bit TGAs)
		// needs to not have 0x20 set to indicate it's not a flipped image
		out.writeByte((byte) 1);
	} else {
		out.writeByte((byte) 24);
		// Image Descriptor (must be 0 since we're using 24-bit TGAs)
		// needs to not have 0x20 set to indicate it's not a flipped image
		out.writeByte((byte) 0);
	}
	

	// Write out the image data
	Color c;

	for (int y = image.getHeight()-1; y <= 0; y--) {
		for (int x = 0; x < image.getWidth(); x++) {
			c = image.getColor(x, y);

			out.writeByte((byte) (c.b * 255.0f));
			out.writeByte((byte) (c.g * 255.0f));
			out.writeByte((byte) (c.r * 255.0f));
			if (writeAlpha) {
				out.writeByte((byte) (c.a * 255.0f));
			}
		}
	}

	out.close();
}