SRMCrtc

Cathode Ray Tube Controllers (CRTCs). More...

Detailed Description

Cathode Ray Tube Controllers (CRTCs).

A Cathode Ray Tube Controller (CRTC) is responsible for controlling the display timings and attributes for a connected display device. This module provides functions to work with CRTCs in a SRM context.

Note

This module is primarily used by SRM internally and may not be of much use to users.

Functions
UInt32	srmCrtcGetID (SRMCrtc *crtc)
	Get the DRM ID of this CRTC. More...
SRMDevice *	srmCrtcGetDevice (SRMCrtc *crtc)
	Get the device this CRTC belongs to. More...
SRMConnector *	srmCrtcGetCurrentConnector (SRMCrtc *crtc)
	Returns a pointer to the SRMConnector that is currently using this CRTC, or NULL if it is not used by any connector. More...
UInt64	srmCrtcGetGammaSize (SRMCrtc *crtc)
	Gets the number of elements used to represent each RGB gamma correction curve. More...

Typedef Documentation

SRMCrtc

typedef struct SRMCrtcStruct SRMCrtc

Function Documentation

srmCrtcGetID()

UInt32 srmCrtcGetID

(

SRMCrtc *

crtc

)

Get the DRM ID of this CRTC.

Parameters

crtc	A pointer to the SRMCrtc instance.

Returns

The DRM ID of the CRTC.

srmCrtcGetDevice()

SRMDevice* srmCrtcGetDevice

(

SRMCrtc *

crtc

)

Get the device this CRTC belongs to.

Parameters

crtc	A pointer to the SRMCrtc instance.

Returns

A pointer to the SRMDevice that this CRTC belongs to.

srmCrtcGetCurrentConnector()

SRMConnector* srmCrtcGetCurrentConnector

(

SRMCrtc *

crtc

)

Returns a pointer to the SRMConnector that is currently using this CRTC, or NULL if it is not used by any connector.

Parameters

crtc	A pointer to the SRMCrtc instance.

Returns

A pointer to the SRMConnector currently using this CRTC, or NULL if not in use.

srmCrtcGetGammaSize()

UInt64 srmCrtcGetGammaSize

(

SRMCrtc *

crtc

)

Gets the number of elements used to represent each RGB gamma correction curve.

This function retrieves the number of elements (N) used to represent each RGB gamma correction curve, where N is the count of UInt16 elements for red, green, and blue curves.

See also

srmConnectorSetGamma()

Parameters

connector

Pointer to the SRMCrtc.

Returns

The number of elements used to represent each RGB gamma correction curve, or 0 if the driver does not support gamma correction.