gl::Texture Class Reference

Most basic/generic texture: only contains a texture ID. More...

#include <GLUtil.hh>

Inheritance diagram for gl::Texture:

Public Member Functions
	Texture (const Texture &)=delete
Texture &	operator= (const Texture &)=delete
	Texture (bool interpolation=false, bool wrap=false)
	Allocate a openGL texture name and enable/disable interpolation. More...
	Texture (Null)
	Create null-handle (not yet allocate an openGL handle). More...
	~Texture ()
	Release openGL texture name. More...
	Texture (Texture &&other) noexcept
	Move constructor and assignment. More...
Texture &	operator= (Texture &&other) noexcept
void	allocate ()
	Allocate an openGL texture name. More...
void	reset ()
	Release openGL texture name. More...
GLuint	get () const
	Returns the underlying openGL handler id. More...
void	bind ()
	Makes this texture the active GL texture. More...
void	setInterpolation (bool interpolation)
	Enable/disable bilinear interpolation for this texture. More...
void	setWrapMode (bool wrap)

Protected Attributes
GLuint	textureId

Friends
class	FrameBufferObject

Detailed Description

Most basic/generic texture: only contains a texture ID.

Current implementation always assumes 2D textures.

Definition at line 39 of file GLUtil.hh.

Constructor & Destructor Documentation

Texture() [1/4]

gl::Texture::Texture ( const Texture &  )

delete

Texture() [2/4]

gl::Texture::Texture ( bool  interpolation = false, bool  wrap = false  )

explicit

Allocate a openGL texture name and enable/disable interpolation.

Definition at line 29 of file GLUtil.cc.

References allocate(), setInterpolation(), and setWrapMode().

Texture() [3/4]

gl::Texture::Texture ( Null  )

inlineexplicit

Create null-handle (not yet allocate an openGL handle).

Definition at line 49 of file GLUtil.hh.

~Texture()

gl::Texture::~Texture ( )

inline

Release openGL texture name.

Definition at line 52 of file GLUtil.hh.

References reset().

Texture() [4/4]

gl::Texture::Texture ( Texture &&  other )

inlinenoexcept

Move constructor and assignment.

Definition at line 55 of file GLUtil.hh.

Member Function Documentation

allocate()

void gl::Texture::allocate

(

)

Allocate an openGL texture name.

Definition at line 36 of file GLUtil.cc.

References textureId.

Referenced by Texture().

bind()

void gl::Texture::bind ( )

inline

Makes this texture the active GL texture.

The other methods of this class and its subclasses will implicitly bind the texture, so you only need this method to explicitly bind this texture for use in GL function calls outside of this class.

Definition at line 81 of file GLUtil.hh.

References textureId.

Referenced by openmsx::GLImage::draw(), openmsx::GLScaler::execute(), openmsx::GLHQLiteScaler::GLHQLiteScaler(), openmsx::GLHQScaler::GLHQScaler(), openmsx::GLSnow::paint(), gl::ColorTexture::resize(), openmsx::GLHQLiteScaler::scaleImage(), openmsx::GLHQScaler::scaleImage(), openmsx::SDLGLOffScreenSurface::SDLGLOffScreenSurface(), setInterpolation(), setWrapMode(), openmsx::GLHQLiteScaler::uploadBlock(), and openmsx::GLHQScaler::uploadBlock().

get()

GLuint gl::Texture::get ( ) const

inline

Returns the underlying openGL handler id.

0 iff no openGL texture is allocated.

Definition at line 74 of file GLUtil.hh.

References textureId.

Referenced by openmsx::GLImage::draw().

operator=() [1/2]

Texture & gl::Texture::operator= ( const Texture &  )

delete

operator=() [2/2]

Texture & gl::Texture::operator= ( Texture &&  other )

inlinenoexcept

Definition at line 60 of file GLUtil.hh.

References std::swap(), and textureId.

reset()

void gl::Texture::reset

(

)

Release openGL texture name.

Definition at line 41 of file GLUtil.cc.

References textureId.

Referenced by ~Texture().

setInterpolation()

void gl::Texture::setInterpolation

(

bool

interpolation

)

Enable/disable bilinear interpolation for this texture.

IOW selects between GL_NEAREST or GL_LINEAR filtering.

Definition at line 47 of file GLUtil.cc.

References bind().

Referenced by openmsx::GLHQLiteScaler::scaleImage(), openmsx::GLRGBScaler::scaleImage(), openmsx::GLSimpleScaler::scaleImage(), and Texture().

setWrapMode()

void gl::Texture::setWrapMode

(

bool

wrap

)

Definition at line 55 of file GLUtil.cc.

References bind().

Referenced by Texture().

Friends And Related Function Documentation

FrameBufferObject

friend class FrameBufferObject

friend

Definition at line 95 of file GLUtil.hh.

Member Data Documentation

textureId

GLuint gl::Texture::textureId

protected

Definition at line 93 of file GLUtil.hh.

Referenced by allocate(), bind(), gl::FrameBufferObject::FrameBufferObject(), get(), operator=(), and reset().

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

• GLUtil.hh
• GLUtil.cc