OpenGL::Surface Class Reference

#include <texture.h>

Inheritance diagram for OpenGL::Surface:

Public Member Functions
virtual void	destroy ()=0
virtual void	recreate ()=0
virtual void	enableLinearFiltering (bool enable)=0
virtual void	allocate (uint width, uint height)=0
virtual void	setMask (const byte *mask)
void	copyRectToTexture (uint x, uint y, uint w, uint h, const void *src, uint srcPitch)
void	fill (uint32 color)
void	fill (const Common::Rect &r, uint32 color)
void	flagDirty ()
virtual bool	isDirty () const
virtual uint	getWidth () const =0
virtual uint	getHeight () const =0
virtual Graphics::PixelFormat	getFormat () const =0
virtual Graphics::Surface *	getSurface ()=0
virtual const Graphics::Surface *	getSurface () const =0
virtual bool	hasPalette () const
virtual void	setColorKey (uint colorKey)
virtual void	setPalette (uint start, uint colors, const byte *palData)
virtual void	setScaler (uint scalerIndex, int scaleFactor)
virtual void	updateGLTexture ()=0
virtual const Texture &	getGLTexture () const =0

Protected Member Functions
void	clearDirty ()
void	addDirtyArea (const Common::Rect &r)
Common::Rect	getDirtyArea () const

Detailed Description

Interface for OpenGL implementations of a 2D surface.

Member Function Documentation

destroy()

virtual void OpenGL::Surface::destroy ( )

pure virtual

Destroy OpenGL description of surface.

Implemented in OpenGL::TextureSurfaceCLUT8GPU, and OpenGL::TextureSurface.

recreate()

virtual void OpenGL::Surface::recreate ( )

pure virtual

Recreate OpenGL description of surface.

Implemented in OpenGL::TextureSurfaceCLUT8GPU, and OpenGL::TextureSurface.

enableLinearFiltering()

virtual void OpenGL::Surface::enableLinearFiltering ( bool  enable )

pure virtual

Enable or disable linear texture filtering.

Parameters

enable

true to enable and false to disable.

Implemented in OpenGL::TextureSurfaceCLUT8GPU, and OpenGL::TextureSurface.

allocate()

virtual void OpenGL::Surface::allocate ( uint  width, uint  height  )

pure virtual

Allocate storage for surface.

Parameters

width	The desired logical width.
height	The desired logical height.

Implemented in OpenGL::TextureSurfaceCLUT8GPU, OpenGL::FakeTextureSurface, and OpenGL::TextureSurface.

setMask()

virtual void OpenGL::Surface::setMask ( const byte *  mask )

inlinevirtual

Assign a mask to the surface, where a byte value of 0 is black with 0 alpha and 1 is the normal color.

Parameters

mask	The mask data.

Reimplemented in OpenGL::FakeTextureSurface.

copyRectToTexture()

void OpenGL::Surface::copyRectToTexture	(	uint	x,
		uint	y,
		uint	w,
		uint	h,
		const void *	src,
		uint	srcPitch
	)

Copy image data to the surface.

The format of the input data needs to match the format returned by getFormat.

Parameters

x	X coordinate of upper left corner to copy data to.
y	Y coordinate of upper left corner to copy data to.
w	Width of the image data to copy.
h	Height of the image data to copy.
src	Pointer to image data.
srcPitch	The number of bytes in a row of the image data.

fill()

void OpenGL::Surface::fill

(

uint32

color

)

Fill the surface with a fixed color.

Parameters

color

Color value in format returned by getFormat.

getFormat()

virtual Graphics::PixelFormat OpenGL::Surface::getFormat ( ) const

pure virtual

Returns

The logical format of the texture data.

Implemented in OpenGL::TextureSurfaceCLUT8GPU, OpenGL::FakeTextureSurface, and OpenGL::TextureSurface.

hasPalette()

virtual bool OpenGL::Surface::hasPalette ( ) const

inlinevirtual

Returns

Whether the surface is having a palette.

Reimplemented in OpenGL::TextureSurfaceCLUT8GPU, and OpenGL::FakeTextureSurface.

setColorKey()

virtual void OpenGL::Surface::setColorKey ( uint  colorKey )

inlinevirtual

Set color key for paletted textures.

This needs to be called after any palette update affecting the color key. Calling this multiple times will result in multiple color indices to be treated as color keys.

Reimplemented in OpenGL::TextureSurfaceCLUT8GPU, and OpenGL::FakeTextureSurface.

updateGLTexture()

virtual void OpenGL::Surface::updateGLTexture ( )

pure virtual

Update underlying OpenGL texture to reflect current state.

Implemented in OpenGL::TextureSurfaceCLUT8GPU, OpenGL::TextureSurfaceRGBA8888Swap, OpenGL::TextureSurfaceRGB555, OpenGL::FakeTextureSurface, and OpenGL::TextureSurface.

getGLTexture()

virtual const Texture& OpenGL::Surface::getGLTexture ( ) const

pure virtual

Obtain underlying OpenGL texture.

Implemented in OpenGL::TextureSurfaceCLUT8GPU, and OpenGL::TextureSurface.

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

• backends/graphics/opengl/texture.h