IADLXDisplayGamma
The IADLXDisplayGamma interface configures gamma correction on a display.
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InterfaceId: |
IADLXDisplayGamma |
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Smart Pointer Interface Name: |
IADLXDisplayGammaPtr |
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Inherits: |
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Inherited By: |
N/A |
The IADLXDisplayGamma interface provides two types of gamma correction which are gamma ramp and gamma coefficient. Both gamma ramp and gamma coefficient have two sub-types: de-gamma and re-gamma.
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Gamma ramp provides a Lookup Table (LUT) for the gamma correction, it applies the LUT with the assumption that all pixels are in sRGB space.
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Re-Gamma coefficient uses the following non-linear formula:
Copied!
if (linear_pixel < CofficientA0) output = linear_pixel * CofficientA1 else output = (1 + CofficientA3) * linear_pixel ^ (1/Gamma) - CofficientA2 -
De-Gamma coefficient uses the following non-linear formula:
Copied!
if (linear_pixel < CofficientA0) output = linear_pixel / CofficientA1 else output = ((linear_pixel + CofficientA3) / (1 + CofficientA2)) ^ (Gamma)
Methods
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Method |
Description |
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Gets the re-gamma coefficient settings on a display. |
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Gets the gamma ramp LUT on a display. |
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Checks if de-gamma ramp is used by a display. |
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Checks if the 3.6 re-gamma is used by a display. |
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Checks if the BT709 re-gamma is used by a display. |
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Checks if the PQ re-gamma is used by a display. |
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Checks if the PQ2084 re-gamma curve is used by a display. |
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Checks if re-gamma ramp is used by a display. |
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Checks if the sRGB re-gamma is used by a display. |
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Checks if re-gamma coefficient is used by a display. |
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Checks if the 3.6 re-gamma is supported on a display. |
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Checks if the BT709 re-gamma is supported on a display. |
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Checks if the PQ re-gamma is supported on a display. |
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Checks if the PQ2084 re-gamma curve is supported on a display. |
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Checks if the sRGB re-gamma is supported on a display. |
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Resets the gamma ramp on a display. |
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Sets the de-gamma on a display using a ramp file. |
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Sets the de-gamma on a display using a ramp buffer. |
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Sets the 3.6 re-gamma on a display. |
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Sets the BT709 re-gamma on a display. |
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Sets the re-gamma coefficient on a display. |
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Sets the PQ re-gamma on a display. |
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Sets the PQ2084 re-gamma curve on a display. |
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Sets the re-gamma on a display using a ramp file. |
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Sets the re-gamma on a display using a ramp buffer. |
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Sets the sRGB re-gamma on a display. |
Requirements
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Header |
include “IDisplayGamma.h” |
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Minimum version |
1.0 |
Example
To see how to use this interface in a C++ application, refer to the DisplayGamma C++ sample .
For a C application, refer to the DisplayGamma C sample .
