Package org.lwjgl.opencl
Class APPLEBiasedFixedPointImageFormats
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- org.lwjgl.opencl.APPLEBiasedFixedPointImageFormats
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public final class APPLEBiasedFixedPointImageFormats extends java.lang.Object
Native bindings to the APPLE_biased_fixed_point_image_formats extension.This selector may be passed to
CreateImage2D
in the cl_image_format.image_channel_data_type field. It defines a biased signed 1.14 fixed point storage format, with range [-1, 3). The conversion from float to this fixed point format is defined as follows:ushort float_to_sfixed14( float x ){ int i = convert_int_sat_rte( x * 0x1.0p14f ); // scale [-1, 3.0) to [-16384, 3*16384), round to nearest integer i = add_sat( i, 0x4000 ); // apply bias, to convert to [0, 65535) range return convert_ushort_sat(i); // clamp to destination size }
The inverse conversion is the reverse process. The formats are currently only available on the CPU with the
RGBA
channel layout.
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Field Summary
Fields Modifier and Type Field Description static int
CL_BIASED_HALF_APPLE
CL_SFIXED14_APPLE
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Field Detail
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CL_SFIXED14_APPLE
public static final int CL_SFIXED14_APPLE
- See Also:
- Constant Field Values
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CL_BIASED_HALF_APPLE
public static final int CL_BIASED_HALF_APPLE
- See Also:
- Constant Field Values
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