Inheritance diagram for openmsx::GLDefaultScaler:

Collaboration diagram for openmsx::GLDefaultScaler:

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Public Member Functions
	GLDefaultScaler ()

void	scaleImage (gl::ColorTexture &src, gl::ColorTexture *superImpose, unsigned srcStartY, unsigned srcEndY, unsigned srcWidth, unsigned dstStartY, unsigned dstEndY, unsigned dstWidth, unsigned logSrcHeight) override
	Scales the image in the given area, which must consist of lines which are all equally wide.

Public Member Functions inherited from openmsx::GLScaler
virtual	~GLScaler ()=default

void	setup (bool superImpose)
	Setup scaler.

virtual void	uploadBlock (unsigned srcStartY, unsigned srcEndY, unsigned lineWidth, FrameSource &paintFrame)

Additional Inherited Members
Protected Member Functions inherited from openmsx::GLScaler
	GLScaler (const std::string &progName)

void	execute (const gl::ColorTexture &src, const gl::ColorTexture *superImpose, unsigned srcStartY, unsigned srcEndY, unsigned srcWidth, unsigned dstStartY, unsigned dstEndY, unsigned dstWidth, unsigned logSrcHeight, bool textureFromZero=false)
	Helper method to draw a rectangle with multiple texture coordinates.

Protected Attributes inherited from openmsx::GLScaler
std::array< gl::BufferObject, 2 >	vbo

std::array< gl::ShaderProgram, 2 >	program

std::array< GLint, 2 >	unifTexSize

std::array< GLint, 2 >	unifMvpMatrix

Detailed Description

Definition at line 8 of file GLDefaultScaler.hh.

Constructor & Destructor Documentation

openmsx::GLDefaultScaler::GLDefaultScaler ( )

Definition at line 5 of file GLDefaultScaler.cc.

void openmsx::GLDefaultScaler::scaleImage	(	gl::ColorTexture &	src,
		gl::ColorTexture *	superImpose,
		unsigned	srcStartY,
		unsigned	srcEndY,
		unsigned	srcWidth,
		unsigned	dstStartY,
		unsigned	dstEndY,
		unsigned	dstWidth,
		unsigned	logSrcHeight
	)

overridevirtual

Scales the image in the given area, which must consist of lines which are all equally wide.

Scaling factor depends on the concrete scaler.

Parameters

src	Source: texture containing the frame to be scaled.
superImpose	Texture containing the to-be-superimposed image (can be nullptr).
srcStartY	Y-coordinate of the top source line (inclusive).
srcEndY	Y-coordinate of the bottom source line (exclusive).
srcWidth	The number of pixels per line for the given area.
dstStartY	Y-coordinate of the top destination line (inclusive).
dstEndY	Y-coordinate of the bottom destination line (exclusive).
dstWidth	The number of pixels per line on the output screen.
logSrcHeight	The logical height of the complete src texture (actual texture height can be double as high in case of non-interlace). This is needed to translate src-Y-coordinates to superImpose-Y-coordinates.

Definition at line 10 of file GLDefaultScaler.cc.

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