org.lwjgl.opengles

Class PixelFormat

java.lang.Object

org.lwjgl.opengles.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 and Description
static class	PixelFormat.Attrib

Constructor Summary

Constructors

Constructor and 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.

Method Summary

Methods

Modifier and Type	Method and Description
int	getAttrib(PixelFormat.Attrib attrib) Returns the value of the specified attribute.
java.nio.IntBuffer	getAttribBuffer(EGLDisplay display, int surfaceType, int[] lwjglAttribs) Returns an IntBuffer that can be used to get/choose EGLConfigs.
EGLConfig	getBestMatch(EGLConfig[] configs) Returns the EGL config from the specified array that best matches this PixelFormat.
void	setSurfaceAttribs(EGLSurface surface) Applies this PixelFormat's surface attributes to the specified EGL surface.
PixelFormat	withAlphaSize(int alphaSize) Returns a new PixelFormat with the specified EGL_ALPHA_SIZE.
PixelFormat	withCoverageSamplesNV(int samples) Returns a new PixelFormat with the specified number of EGL_COVERAGE_SAMPLES_NV.
PixelFormat	withDepthEncodingNonlinearNV(int depthEncoding) Returns a new PixelFormat with the specified EGL_DEPTH_ENCODING_NONLINEAR_NV.
PixelFormat	withDepthSize(int depthSize) Returns a new PixelFormat with the specified EGL_DEPTH_SIZE.
PixelFormat	withLuminanceSize(int luminanceSize) Returns a new PixelFormat with the specified EGL_LUMINANCE_SIZE.
PixelFormat	withMaxSwapInterval(int maxSwapInterval) Returns a new PixelFormat with the specified EGL_MAX_SWAP_INTERVAL.
PixelFormat	withMinSwapInterval(int minSwapInterval) Returns a new PixelFormat with the specified EGL_MIN_SWAP_INTERVAL.
PixelFormat	withMultisampleResolve(int multisampleResolve) Returns a new PixelFormat with the specified EGL_MULTISAMPLE_RESOLVE value.
PixelFormat	withRGBSize(int rgb) Returns a new PixelFormat with the specified RGB sizes.
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.
PixelFormat	withSamples(int samples) Returns a new PixelFormat with the specified number of EGL_SAMPLES.
PixelFormat	withStencilSize(int stencilSize) Returns a new PixelFormat with the specified EGL_STENCIL_SIZE.
PixelFormat	withSwapBehavior(int swapBehavior) Returns a new PixelFormat with the specified EGL_SWAP_BEHAVIOR value.
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.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

PixelFormat

public PixelFormat()

Creates a new PixelFormat with rgbSize = 8, alphaSize = 8 and depthSize = 16.

See Also:

PixelFormat(int, int, int, int, int, int)

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