Class PixelFormat

  • All Implemented Interfaces:
    PixelFormatLWJGL

    public final class PixelFormat
    extends java.lang.Object
    implements PixelFormatLWJGL
    This class describes the configuration settings for an EGL surface. Instances of this class are used as arguments to Display.create(). The attributes specified in this class will be used to get EGLConfigs from an EGLDisplay. PixelFormat is not the best name for this class, but it matches the corresponding class in the official desktop LWJGL.

    Instances of this class are immutable. An example of the expected way to set the PixelFormat property values is the following: PixelFormat pf = new PixelFormat().withDepth(24).withSamples(4);

    Attributes that correspond to EGL extensions will be silently ignored if those extensions are not supported by the EGLDisplay.

    • Nested Class Summary

      Nested Classes 
      Modifier and Type Class Description
      static class  PixelFormat.Attrib  
    • Constructor Summary

      Constructors 
      Constructor Description
      PixelFormat()
      Creates a new PixelFormat with rgbSize = 8, alphaSize = 8 and depthSize = 16.
      PixelFormat​(int alphaSize, int depthSize, int stencilSize)
      Creates a new PixelFormat with rgbSize = 8 and the specified alphaSize, depthSize and stencilSize.
      PixelFormat​(int alphaSize, int depthSize, int stencilSize, int samples)
      Creates a new PixelFormat with rgbSize = 8 and the specified alphaSize, depthSize, stencilSize and samples.
      PixelFormat​(int rgbSize, int alphaSize, int luminanceSize, int depthSize, int stencilSize, int samples)
      Creates a new PixelFormat with the specified RGB sizes, EGL_ALPHA_SIZE, EGL_LUMINANCE_SIZE, EGL_DEPTH_SIZE, EGL_STENCIL_SIZE, EGL_SAMPLES.
    • Constructor Detail

      • PixelFormat

        public PixelFormat​(int alphaSize,
                           int depthSize,
                           int stencilSize)
        Creates a new PixelFormat with rgbSize = 8 and the specified alphaSize, depthSize and stencilSize.
        Parameters:
        alphaSize - the EGL_ALPHA_SIZE value
        depthSize - the EGL_DEPTH_SIZE value
        stencilSize - the EGL_STENCIL_SIZE value
        See Also:
        PixelFormat(int, int, int, int, int, int)
      • PixelFormat

        public PixelFormat​(int alphaSize,
                           int depthSize,
                           int stencilSize,
                           int samples)
        Creates a new PixelFormat with rgbSize = 8 and the specified alphaSize, depthSize, stencilSize and samples.
        Parameters:
        alphaSize - the EGL_ALPHA_SIZE value
        depthSize - the EGL_DEPTH_SIZE value
        stencilSize - the EGL_STENCIL_SIZE value
        samples - the EGL_SAMPLE_SIZE value
        See Also:
        PixelFormat(int, int, int, int, int, int)
      • PixelFormat

        public PixelFormat​(int rgbSize,
                           int alphaSize,
                           int luminanceSize,
                           int depthSize,
                           int stencilSize,
                           int samples)
        Creates a new PixelFormat with the specified RGB sizes, EGL_ALPHA_SIZE, EGL_LUMINANCE_SIZE, EGL_DEPTH_SIZE, EGL_STENCIL_SIZE, EGL_SAMPLES. All values must be greater than or equal to 0. rgbSize and luminanceSize cannot both be greater than 0. depthSize greater than 24 and stencilSize greater than 8 are not recommended. The corresponding EGL_SAMPLE_BUFFERS value will become 0 if samples is 0, or 1 if samples is greater than 0.
        Parameters:
        rgbSize - the RGB sizes
        alphaSize - the EGL_ALPHA_SIZE value
        luminanceSize - the EGL_LUMINANCE_SIZE value
        depthSize - the EGL_DEPTH_SIZE value
        stencilSize - the EGL_STENCIL_SIZE value
        samples - the EGL_SAMPLE_SIZE value
    • Method Detail

      • getAttribBuffer

        public java.nio.IntBuffer getAttribBuffer​(EGLDisplay display,
                                                  int surfaceType,
                                                  int[] lwjglAttribs)
        Returns an IntBuffer that can be used to get/choose EGLConfigs. The contents of the IntBuffer will be the sum of the source LWJGL attributes and the user-defined attributes from this PixelFormat's configuration.

        The source LWJGL attributes should not contain the EGL_SURFACE_TYPE attirube, or any attributes that are handled by PixelFormat.

        Attributes that correspond to EGL extensions will be checked against the extensions supported in the specified EGLDisplay. Attributes that correspond to unsupported extensions will not be included in the final EGLConfig query.

        Parameters:
        display - the EGL display from which the EGLConfig is going to be retrieved
        lwjglAttribs - the LWJGL attributes
        Returns:
        the IntBuffer
      • getBestMatch

        public EGLConfig getBestMatch​(EGLConfig[] configs)
                               throws LWJGLException
        Returns the EGL config from the specified array that best matches this PixelFormat.
        Parameters:
        configs - the EGL configs
        Returns:
        the best match
        Throws:
        LWJGLException
      • setSurfaceAttribs

        public void setSurfaceAttribs​(EGLSurface surface)
                               throws LWJGLException
        Applies this PixelFormat's surface attributes to the specified EGL surface.
        Parameters:
        surface - the EGL surface
        Throws:
        LWJGLException
      • getAttrib

        public int getAttrib​(PixelFormat.Attrib attrib)
        Returns the value of the specified attribute.
        Parameters:
        attrib - the attribute to retrieve
        Returns:
        the attribute's value
      • withRGBSize

        public PixelFormat withRGBSize​(int rgb)
        Returns a new PixelFormat with the specified RGB sizes.
        Parameters:
        rgb - the new EGL_RED_SIZE, EGL_GREEN_SIZE and EGL_BLUE_SIZE
        Returns:
        the new PixelFormat
        See Also:
        withRGBSize(int, int, int)
      • withRGBSize

        public PixelFormat withRGBSize​(int r,
                                       int g,
                                       int b)
        Returns a new PixelFormat with the specified EGL_RED_SIZE, EGL_GREEN_SIZE and EGL_BLUE_SIZE. All 3 values must be greater than or equal to 0. If any of the 3 values is greater than 0, the luminanceSize will be set to 0.
        Parameters:
        r - the new EGL_RED_SIZE
        g - the new EGL_GREEN_SIZE
        b - the new EGL_BLUE_SIZE
        Returns:
        the new PixelFormat
      • withAlphaSize

        public PixelFormat withAlphaSize​(int alphaSize)
        Returns a new PixelFormat with the specified EGL_ALPHA_SIZE. The alphaSize value must be greater than or equal to 0.
        Parameters:
        alphaSize - the new EGL_ALPHA_SIZE
        Returns:
        the new PixelFormat
      • withLuminanceSize

        public PixelFormat withLuminanceSize​(int luminanceSize)
        Returns a new PixelFormat with the specified EGL_LUMINANCE_SIZE. The luminanceSize value must be greater than or equal to 0. If luminanceSize is greater than 0, the RGB sizes will be set to 0.
        Parameters:
        luminanceSize - the new EGL_LUMINANCE_SIZE
        Returns:
        the new PixelFormat
      • withDepthSize

        public PixelFormat withDepthSize​(int depthSize)
        Returns a new PixelFormat with the specified EGL_DEPTH_SIZE. The depthSize value must be greater than or equal to 0. Values greater than 24 are not recommended.
        Parameters:
        depthSize - the new EGL_DEPTH_SIZE
        Returns:
        the new PixelFormat
      • withStencilSize

        public PixelFormat withStencilSize​(int stencilSize)
        Returns a new PixelFormat with the specified EGL_STENCIL_SIZE. The stencilSize value must be greater than or equal to 0. Values greater than 8 are not recommended.
        Parameters:
        stencilSize - the new EGL_STENCIL_SIZE
        Returns:
        the new PixelFormat
      • withMinSwapInterval

        public PixelFormat withMinSwapInterval​(int minSwapInterval)
        Returns a new PixelFormat with the specified EGL_MIN_SWAP_INTERVAL. The minSwapInterval value must be between 0 and this PixelFormat's EGL_MAX_SWAP_INTERVAL.
        Parameters:
        minSwapInterval - the new EGL_MIN_SWAP_INTERVAL value
        Returns:
        the new PixelFormat
      • withMaxSwapInterval

        public PixelFormat withMaxSwapInterval​(int maxSwapInterval)
        Returns a new PixelFormat with the specified EGL_MAX_SWAP_INTERVAL. The maxSwapInterval value must be greater than or equal to this PixelFormat's EGL_MIN_SWAP_INTERVAL.
        Parameters:
        maxSwapInterval - the new EGL_MAX_SWAP_INTERVAL value
        Returns:
        the new PixelFormat
      • withSamples

        public PixelFormat withSamples​(int samples)
        Returns a new PixelFormat with the specified number of EGL_SAMPLES. The samples value must be either 0 or greater than or equal to 2. The related EGL_SAMPLE_BUFFERS value will become 0 if samples is 0, or 1 if samples is greater than or equal to 2.
        Parameters:
        samples - the new EGL_SAMPLES value
        Returns:
        the new PixelFormat
      • withTransparentType

        public PixelFormat withTransparentType​(int transparentType,
                                               int r,
                                               int g,
                                               int b)
        Returns a new PixelFormat with the specified EGL_TRANSPARENT_TYPE and the specified transparent RGB values. The transparentType must be either EGL_NONE or EGL_TRANSPARENT_RGB. When it is EGL_NONE, the RGB values are set to zero and ignored. When it is EGL_TRANSPARENT_RGB, the RGB values must be between 0 and 2^rgbSize - 1.
        Parameters:
        transparentType - the new EGL_TRANSPARENT_TYPE value
        r - the new EGL_TRANSPARENT_RED_VALUE
        g - the new EGL_TRANSPARENT_GREEN_VALUE
        b - the new EGL_TRANSPARENT_BLUE_VALUE
        Returns:
        the new PixelFormat
      • withMultisampleResolve

        public PixelFormat withMultisampleResolve​(int multisampleResolve)
        Returns a new PixelFormat with the specified EGL_MULTISAMPLE_RESOLVE value. Valid values for multisampleResolve are EGL_MULTISAMPLE_RESOLVE_DEFAULT and EGL_MULTISAMPLE_RESOLVE_BOX.

        An IllegalStateException will be thrown if EGL_SAMPLES has not been previously defined to be greater than or equal to 2.

        Parameters:
        multisampleResolve - the new EGL_MULTISAMPLE_RESOLVE value
        Returns:
        the new PixelFormat
      • withSwapBehavior

        public PixelFormat withSwapBehavior​(int swapBehavior)
        Returns a new PixelFormat with the specified EGL_SWAP_BEHAVIOR value. Valid values for swapBehavior are EGL_DONT_CARE, EGL_BUFFER_PRESERVED and EGL_BUFFER_DESTROYED.
        Parameters:
        swapBehavior - the new EGL_SWAP_BEHAVIOR value
        Returns:
        the new PixelFormat
      • withCoverageSamplesNV

        public PixelFormat withCoverageSamplesNV​(int samples)
        Returns a new PixelFormat with the specified number of EGL_COVERAGE_SAMPLES_NV. The samples value must be greater than or equal to 0. The related EGL_COVERAGE_BUFFERS_NV value will become 0 if samples is 0, or 1 if samples is greater than 0.
        Parameters:
        samples - the new EGL_SAMPLES value
        Returns:
        the new PixelFormat
      • withDepthEncodingNonlinearNV

        public PixelFormat withDepthEncodingNonlinearNV​(int depthEncoding)
        Returns a new PixelFormat with the specified EGL_DEPTH_ENCODING_NONLINEAR_NV. Valid values for depthEncoding are EGL_DONT_CARE, EGL_DEPTH_ENCODING_NONE_NV and EGL_DEPTH_ENCODING_NONLINEAR_NV.
        Parameters:
        depthEncoding - the new EGL_DEPTH_ENCODING_NONLINEAR_NV value
        Returns:
        the new PixelFormat