Hi,
I've got a question about converting bitmaps into OpenGL-textures. I used following code for loading textures yet:
Code :
private int loadTexture()
	{
		final int[] textureHandle = new int[1];
 
	    GLES20.glGenTextures(1, textureHandle, 0);
 
	    if (textureHandle[0] != 0)
	    {	 
	        // Bind to the texture in OpenGL
	        GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, textureHandle[0]);
 
	        // Set filtering
	        GLES20.glTexParameteri(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_MIN_FILTER, GLES20.GL_NEAREST);
	        GLES20.glTexParameteri(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_MAG_FILTER, GLES20.GL_NEAREST);
 
	        // Load the bitmap into the bound texture.
	        GLUtils.texImage2D(GLES20.GL_TEXTURE_2D, 0, bitmap, 0);
	    }
 
	    if (textureHandle[0] == 0)
	    {
	        throw new RuntimeException("Error loading texture.");
	    }
 
	    return textureHandle[0];
	}

That works fine as long as I just have to load the texture once. But, in my case the bitmap is changed for every frame through drawing on it via a canvas. How can I update the texture efficiently, because loading the texture every time is really low-performance and crashs when the system is running out of memory.?

Thx Vaio
PS: Sorry for my english, I'm not a native speaker