private final static int loadTexture(String path)
{
Image image = (new javax.swing.ImageIcon(path)).getImage();
// Extract The Image
BufferedImage tex = new BufferedImage(image.getWidth(null), image.getHeight(null), BufferedImage.TYPE_3BYTE_BGR);
Graphics2D g = (Graphics2D) tex.getGraphics();
g.drawImage(image, null, null);
g.dispose();
// Flip Image
AffineTransform tx = AffineTransform.getScaleInstance(1, -1);
tx.translate(0, -image.getHeight(null));
AffineTransformOp op = new AffineTransformOp(tx, AffineTransformOp.TYPE_NEAREST_NEIGHBOR);
tex = op.filter(tex, null);
// Put Image In Memory
ByteBuffer scratch = ByteBuffer.allocateDirect(4 * tex.getWidth() * tex.getHeight());
byte data[] = (byte[]) tex.getRaster().getDataElements(0, 0, tex.getWidth(), tex.getHeight(), null);
scratch.clear();
scratch.put(data);
scratch.rewind();
// Create A IntBuffer For Image Address In Memory
IntBuffer buf = ByteBuffer.allocateDirect(4).order(ByteOrder.nativeOrder()).asIntBuffer();
GL.glGenTextures(buf); // Create Texture In OpenGL
GL.glBindTexture(GL.GL_TEXTURE_2D, buf.get(0)); // Typical Texture Generation Using Data From The Image
// Linear Filtering
GL.glTexParameteri(GL.GL_TEXTURE_2D, GL.GL_TEXTURE_MIN_FILTER, GL.GL_LINEAR);
GL.glTexParameteri(GL.GL_TEXTURE_2D, GL.GL_TEXTURE_MAG_FILTER, GL.GL_LINEAR);
// Generate The Texture
GL.glTexImage2D(GL.GL_TEXTURE_2D, 0, GL.GL_RGB, tex.getWidth(), tex.getHeight(), 0, GL.GL_RGB, GL.GL_UNSIGNED_BYTE, scratch);
return buf.get(0); // Return Image Address In Memory
}
I’m not sure what the layout will look like because I pasted this.
Ok…
This works for me.
The only thing is that the image/texture HAS to be 256x256 pixels
The way to use it:
define a variable of type int
int num = 0;
when you ini* openGL call the method
num = loadTexture(“path”);
Then you can use that ‘num’ to bind the texture
