OpenGL rendering context. More...

#include <GLRenderContext.h>

Public Member Functions
	clGLRenderContext ()
virtual	~clGLRenderContext ()
virtual void	AfterConstruction ()
virtual bool	InitContext (clViewport *Viewport, int BitsPerPixel, int zBufferBits, int StencilBits, int Multisample, bool TakeoverContext)
virtual void	EndFrame (bool SwapBuffer)
virtual void	CheckError (const std::string &File, const std::string &Line, const std::string &Info) const
	Terminates application if error occured.
virtual Luint	GetPixel (const LVector2 &Pnt) const
	Read single pixel from the framebuffer. Internal function for objects picking, do not use heavily.
virtual void	SetViewport (int X, int Y, int Width, int Height)
	Resize viewport using specified parameters.
virtual void	SetViewportV (const LVector4 &ViewportSize)
	Resize viewport using parameters in Vec4.
virtual void	RestoreViewport ()
	Set default values taken from Env.Viewport.
virtual void	SetClearColor4v (const LVector4 &Color) const
	Set "background" color.
virtual int	GetScreenshotSize () const
	Determine screenshot size in bytes.
virtual void	GetScreenshot (void *Ptr) const
	Internal screenshot to raw image.
virtual sVideoSystemInfo	GetVideoSystemInfo () const
	Returns information about current renderer vendor, type and version, shading language version.
virtual Lint64	GetTotalVideoMemory () const
	Return total GPU memory.
virtual Lint64	GetFreeVideoMemory () const
	Return currently free GPU memory.
virtual bool	GuardExtension (bool Optional, const std::string &ExtName)
	Returns true if ExtName is supported. Terminated the program if Optional is false and ExtName is not supported.
virtual void	ClearRenderTarget (bool Color, bool Depth, bool Stencil)
	Clears specified render buffers of currently binded render target.
virtual void	SetPolygonFillMode (bool Fill)
	Toggles solid (fill) and wireframe rendering.
virtual void	Finish ()
	Wait until all previous rendering operations are finished.
virtual void	SetState (clRenderState *State)
	Make the state current.
virtual void	UpdateState (clRenderState *State)
virtual iTexture *	CreateTexture () const
virtual sLGLAPI *	GetLGLAPI () const
virtual void	SetActiveTextureUnit (int TextureUnit)
virtual void	SetActiveVBO (int ArrayBuffer, int ElementBuffer)
virtual void	Event_SURFACE_CHANGED (LEvent Event, const LEventArgs &Args)
Private Member Functions
void	CheckExtensions ()
void	LogExtensions ()
sVideoSystemInfo	RecheckVideoSystemInfo () const
void	SetupBackfaceCulling (bool BackfaceCulling, bool BackFacing)
void	SetupDepthTest (bool DepthTest)
void	SetupDepthWrites (bool DepthWrites)
void	SetupColorWrites (bool ColorWrites)
Private Attributes
LGL::clGLExtRetriever *	FOpenGL
clGLDebugger *	FDebugger
clViewport *	FViewport
GL_CONTEXT_TYPE	FRenderContext
int	FCurrentViewportWidth
int	FCurrentViewportHeight
int	FActiveTextureUnit
int	FActiveVBO_ArrayBuffer
int	FActiveVBO_ElementBuffer
sVideoSystemInfo	FCurrentVideoInfo

Detailed Description

OpenGL rendering context.

Constructor & Destructor Documentation

clGLRenderContext::clGLRenderContext ( )

clGLRenderContext::~clGLRenderContext ( ) [virtual]

Member Function Documentation

void clGLRenderContext::AfterConstruction ( ) [virtual]

Reimplemented from iObject.

void clGLRenderContext::CheckError	(	const std::string &	File,
		const std::string &	Line,
		const std::string &	Info
	)		const `[virtual]`

Terminates application if error occured.

Implements iRenderContext.

void clGLRenderContext::CheckExtensions ( ) [private]

void clGLRenderContext::ClearRenderTarget	(	bool	Color,
		bool	Depth,
		bool	Stencil
	)		`[virtual]`

Clears specified render buffers of currently binded render target.

Implements iRenderContext.

iTexture * clGLRenderContext::CreateTexture ( ) const [virtual]

Creates an empty texture to which bitmap could be attached

Reimplemented from iRenderContext.

void clGLRenderContext::EndFrame ( bool SwapBuffer ) [virtual]

Reimplemented from iRenderContext.

void clGLRenderContext::Event_SURFACE_CHANGED	(	LEvent	Event,
		const LEventArgs &	Args
	)		`[virtual]`

void clGLRenderContext::Finish ( ) [virtual]

Wait until all previous rendering operations are finished.

Implements iRenderContext.

Lint64 clGLRenderContext::GetFreeVideoMemory ( ) const [virtual]

Return currently free GPU memory.

Implements iRenderContext.

sLGLAPI * clGLRenderContext::GetLGLAPI ( ) const [virtual]

Luint clGLRenderContext::GetPixel ( const LVector2 & Pnt ) const [virtual]

Read single pixel from the framebuffer. Internal function for objects picking, do not use heavily.

Implements iRenderContext.

void clGLRenderContext::GetScreenshot ( void * Ptr ) const [virtual]

Internal screenshot to raw image.

Implements iRenderContext.

int clGLRenderContext::GetScreenshotSize ( ) const [virtual]

Determine screenshot size in bytes.

Implements iRenderContext.

Lint64 clGLRenderContext::GetTotalVideoMemory ( ) const [virtual]

Return total GPU memory.

Implements iRenderContext.

sVideoSystemInfo clGLRenderContext::GetVideoSystemInfo ( ) const [virtual]

Returns information about current renderer vendor, type and version, shading language version.

Implements iRenderContext.

bool clGLRenderContext::GuardExtension	(	bool	Optional,
		const std::string &	ExtName
	)		`[virtual]`

Returns true if ExtName is supported. Terminated the program if Optional is false and ExtName is not supported.

Reimplemented from iRenderContext.

bool clGLRenderContext::InitContext	(	clViewport *	Viewport,
		int	BitsPerPixel,
		int	zBufferBits,
		int	StencilBits,
		int	Multisample,
		bool	TakeoverContext
	)		`[virtual]`

Creates a rendering context with specified params and ataches it to the viewport. Assumed that fullscreennes had been set prior to this call.

Reimplemented from iRenderContext.

void clGLRenderContext::LogExtensions ( ) [private]

sVideoSystemInfo clGLRenderContext::RecheckVideoSystemInfo ( ) const [private]

void clGLRenderContext::RestoreViewport ( ) [virtual]

Set default values taken from Env.Viewport.

Implements iRenderContext.

void clGLRenderContext::SetActiveTextureUnit ( int TextureUnit ) [virtual]

void clGLRenderContext::SetActiveVBO	(	int	ArrayBuffer,
		int	ElementBuffer
	)		`[virtual]`

void clGLRenderContext::SetClearColor4v ( const LVector4 & Color ) const [virtual]

Set "background" color.

Implements iRenderContext.

void clGLRenderContext::SetPolygonFillMode ( bool Fill ) [virtual]

Toggles solid (fill) and wireframe rendering.

Implements iRenderContext.

void clGLRenderContext::SetState ( clRenderState * State ) [virtual]

Make the state current.

Implements iRenderContext.

void clGLRenderContext::SetupBackfaceCulling	(	bool	BackfaceCulling,
		bool	BackFacing
	)		`[inline, private]`

void clGLRenderContext::SetupColorWrites ( bool ColorWrites ) [inline, private]

void clGLRenderContext::SetupDepthTest ( bool DepthTest ) [inline, private]

void clGLRenderContext::SetupDepthWrites ( bool DepthWrites ) [inline, private]

void clGLRenderContext::SetViewport	(	int	X,
		int	Y,
		int	Width,
		int	Height
	)		`[virtual]`

Resize viewport using specified parameters.

Implements iRenderContext.

void clGLRenderContext::SetViewportV ( const LVector4 & ViewportSize ) [virtual]

Resize viewport using parameters in Vec4.

Implements iRenderContext.

void clGLRenderContext::UpdateState ( clRenderState * State ) [virtual]

Make the state current at the specified RenderContext. Only state differences with CurrentState are passed to graphical API

Implements iRenderContext.

Member Data Documentation

int clGLRenderContext::FActiveTextureUnit [private]

int clGLRenderContext::FActiveVBO_ArrayBuffer [private]

int clGLRenderContext::FActiveVBO_ElementBuffer [private]

sVideoSystemInfo clGLRenderContext::FCurrentVideoInfo [private]

int clGLRenderContext::FCurrentViewportHeight [private]

int clGLRenderContext::FCurrentViewportWidth [private]

clGLDebugger* clGLRenderContext::FDebugger [private]

LGL::clGLExtRetriever* clGLRenderContext::FOpenGL [private]

GL_CONTEXT_TYPE clGLRenderContext::FRenderContext [private]

clViewport* clGLRenderContext::FViewport [private]

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

Public Member Functions

Private Member Functions

Private Attributes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation