Class AWTGLPixelBuffer.SingleAWTGLPixelBufferProvider

Method Details

• allocate

  public AWTGLPixelBuffer allocate(GL gl, PixelFormat.Composition hostPixComp, GLPixelBuffer.GLPixelAttributes pixelAttributes, boolean pack, int width, int height, int depth, int minByteSize)

  Allocates a new GLPixelBuffer object.

  The minimum required remaining byte size equals to minByteSize, if > 0, otherwise utilize GLBuffers.sizeof(GL, int[], int, int, int, int, int, boolean) to calculate it.

  Returns an array backed IntBuffer of size

  width*height*SIZEOF_INT.
   
  
   
  
   Returns an array backed IntBuffer of size 
  width*height*SIZEOF_INT.
   
  

  Specified by:

  allocate in interface GLPixelBuffer.GLPixelBufferProvider

  Specified by:

  allocate in interface GLPixelBuffer.SingletonGLPixelBufferProvider

  Overrides:

  allocate in class AWTGLPixelBuffer.AWTGLPixelBufferProvider

  Parameters:

  gl - the corresponding current GL context object

  hostPixComp - host pixel format, i.e. of the source or sink depending on pack, e.g. fetched via GLPixelBuffer.GLPixelBufferProvider.getHostPixelComp(GLProfile, int). If null, pixelAttributes instance maybe used or an exception is thrown, depending on implementation semantics.

  pixelAttributes - the desired GLPixelBuffer.GLPixelAttributes, e.g. fetched via GLPixelBuffer.GLPixelBufferProvider.getAttributes(GL, int, boolean)

  pack - true for read mode GPU -> CPU, e.g. glReadPixels. false for write mode CPU -> GPU, e.g. glTexImage2D.

  width - in pixels

  height - in pixels

  depth - in pixels

  minByteSize - if > 0, the pre-calculated minimum byte-size for the resulting buffer, otherwise ignore.

  See Also:

  • GLPixelBuffer.GLPixelBufferProvider.getHostPixelComp(GLProfile, int)
  • GLPixelBuffer.GLPixelBufferProvider.getAttributes(GL, int, boolean)

• getSingleBuffer

  public AWTGLPixelBuffer getSingleBuffer(PixelFormat.Composition hostPixelComp, GLPixelBuffer.GLPixelAttributes pixelAttributes, boolean pack)

  Return the last allocated AWTGLPixelBuffer, if compatible w/ the given PixelFormat.Composition and GLPixelBuffer.GLPixelAttributes.

  Specified by:

  getSingleBuffer in interface GLPixelBuffer.SingletonGLPixelBufferProvider

  pixelAttributes - the desired GLPixelBuffer.GLPixelAttributes, e.g. fetched via GLPixelBuffer.GLPixelBufferProvider.getAttributes(GL, int, boolean)

  pack - true for read mode GPU -> CPU, e.g. glReadPixels. false for write mode CPU -> GPU, e.g. glTexImage2D.

• initSingleton

  public AWTGLPixelBuffer initSingleton(GLProfile glp, int componentCount, boolean pack, int width, int height, int depth)

  Initializes the single AWTGLPixelBuffer w/ a given size, if not yet allocated.

  Specified by:

  initSingleton in interface GLPixelBuffer.SingletonGLPixelBufferProvider

  componentCount - RGBA component count, i.e. 1 (luminance, alpha or red), 3 (RGB) or 4 (RGBA)

  pack - true for read mode GPU -> CPU, e.g. glReadPixels. false for write mode CPU -> GPU, e.g. glTexImage2D.

  Returns:

  the newly initialized single AWTGLPixelBuffer, or null if already allocated.

• dispose

  public void dispose()

  Description copied from interface: GLPixelBuffer.SingletonGLPixelBufferProvider

  Dispose all resources.

  Specified by:

  dispose in interface GLPixelBuffer.SingletonGLPixelBufferProvider