#include <SkWGL.h>

Public Member Functions
	SkWGLExtensions ()

bool	hasExtension (HDC dc, const char *ext) const

const char *	getExtensionsString (HDC hdc) const

BOOL	choosePixelFormat (HDC hdc, const int , const FLOAT , UINT, int , UINT ) const

BOOL	getPixelFormatAttribiv (HDC, int, int, UINT, const int , int ) const

BOOL	getPixelFormatAttribfv (HDC hdc, int, int, UINT, const int , FLOAT ) const

HGLRC	createContextAttribs (HDC, HGLRC, const int *) const

BOOL	swapInterval (int interval) const

HPBUFFER	createPbuffer (HDC, int, int, int, const int *) const

HDC	getPbufferDC (HPBUFFER) const

int	releasePbufferDC (HPBUFFER, HDC) const

BOOL	destroyPbuffer (HPBUFFER) const

int	selectFormat (const int formats[], int formatCount, HDC dc, int desiredSampleCount) const

Detailed Description

Definition at line 53 of file SkWGL.h.

Constructor & Destructor Documentation

◆ SkWGLExtensions()

SkWGLExtensions::SkWGLExtensions ( )

Member Function Documentation

◆ choosePixelFormat()

BOOL SkWGLExtensions::choosePixelFormat	(	HDC	hdc,
		const int *	,
		const FLOAT *	,
		UINT	,
		int *	,
		UINT *
	)		const

◆ createContextAttribs()

HGLRC SkWGLExtensions::createContextAttribs	(	HDC	,
		HGLRC	,
		const int *
	)		const

◆ createPbuffer()

HPBUFFER SkWGLExtensions::createPbuffer	(	HDC	,
		int	,
		int	,
		int	,
		const int *
	)		const

◆ destroyPbuffer()

BOOL SkWGLExtensions::destroyPbuffer ( HPBUFFER ) const

◆ getExtensionsString()

const char * SkWGLExtensions::getExtensionsString ( HDC hdc ) const

◆ getPbufferDC()

HDC SkWGLExtensions::getPbufferDC ( HPBUFFER ) const

◆ getPixelFormatAttribfv()

BOOL SkWGLExtensions::getPixelFormatAttribfv	(	HDC	hdc,
		int	,
		int	,
		UINT	,
		const int *	,
		FLOAT *
	)		const

◆ getPixelFormatAttribiv()

BOOL SkWGLExtensions::getPixelFormatAttribiv	(	HDC	,
		int	,
		int	,
		UINT	,
		const int *	,
		int *
	)		const

◆ hasExtension()

bool SkWGLExtensions::hasExtension	(	HDC	dc,
		const char *	ext
	)		const

Determines if an extensions is available for a given DC. WGL_extensions_string is considered a prerequisite for all other extensions. It is necessary to check this before calling other class functions.

◆ releasePbufferDC()

int SkWGLExtensions::releasePbufferDC	(	HPBUFFER	,
		HDC
	)		const

◆ selectFormat()

int SkWGLExtensions::selectFormat	(	const int	formats[],
		int	formatCount,
		HDC	dc,
		int	desiredSampleCount
	)		const

WGL doesn't have precise rules for the ordering of formats returned by wglChoosePixelFormat. This function helps choose among the set of formats returned by wglChoosePixelFormat. The rules in decreasing priority are:

Choose formats with the smallest sample count that is >= desiredSampleCount (or the largest sample count if all formats have fewer samples than desiredSampleCount.) If desiredSampleCount is 1 then all msaa formats are excluded from consideration.
Choose formats with the fewest color samples when coverage sampling is available.
If the above rules leave multiple formats, choose the one that appears first in the formats array parameter.

◆ swapInterval()

BOOL SkWGLExtensions::swapInterval ( int interval ) const

The documentation for this class was generated from the following file:

third_party/skia/tools/gpu/gl/win/SkWGL.h

Public Member Functions