galaxy::graphics::TextureArray Class Reference

OpenGL texture array. More...

#include <TextureArray.hpp>

Inheritance diagram for galaxy::graphics::TextureArray:

Collaboration diagram for galaxy::graphics::TextureArray:

Public Member Functions
	TextureArray ()
	Constructor.
	TextureArray (TextureArray &&)
	Move constructor.
TextureArray &	operator= (TextureArray &&)
	Move assignment operator.
virtual	~TextureArray ()
	Destructor.
bool	add (const std::string &file)
	Add a texture to the texture array.
void	build (const int width, const int height)
	Creates the array texture.
bool	build_from_tileset (const std::string &file, const int tile_size)
	Creates an array texture from a tileset.
void	bind () override
	Activate context.
void	unbind () override
	Deactivate context.
Public Member Functions inherited from galaxy::graphics::Texture
	Texture (Texture &&)
	Move constructor.
Texture &	operator= (Texture &&)
	Move assignment operator.
virtual	~Texture ()
	Destructor.
TextureView	make_view (const unsigned int minlevel=0, const unsigned int numlevels=1, const unsigned int minlayer=0, const unsigned int numlayers=1)
	Create a texture view.
void	mode (const TextureMode mode)
	Set texture mode.
TextureMode	mode () const
	Get texture mode.
void	filter (const TextureFilter filter)
	Set filter when texture is (up/down)scaled in OpenGL.
TextureFilter	filter () const
	Get texture filter.
void	anisotropy (const int level)
	Set ansiotropic filtering level.
int	anisotropy () const
	Get current anisotropy level.
float	width () const
	Get texture width.
float	height () const
	Get texture height.
unsigned int	id () const
	Gets opengl handle.

Private Attributes
meta::vector< unsigned char * >	m_data
	Data from adding a file to the texture array. Not kept after building.

Additional Inherited Members
Protected Member Functions inherited from galaxy::graphics::Texture
	Texture ()
	Constructor.
Protected Attributes inherited from galaxy::graphics::Texture
unsigned int	m_id
	OpenGL id.
int	m_width
	Cached width.
int	m_height
	Cached height.
TextureMode	m_mode
	Mode.
TextureFilter	m_filter
	Filter.
int	m_anisotropy
	Ansiotrophy level.

Detailed Description

OpenGL texture array.

Example shader: https://github.com/fendevel/Guide-to-Modern-OpenGL-Functions?tab=readme-ov-file#texture-atlases-vs-arrays

Definition at line 24 of file TextureArray.hpp.

Constructor & Destructor Documentation

TextureArray() [1/2]

galaxy::graphics::TextureArray::TextureArray

(

)

Constructor.

Definition at line 20 of file TextureArray.cpp.

TextureArray() [2/2]

galaxy::graphics::TextureArray::TextureArray

(

TextureArray &&

t

)

Move constructor.

Definition at line 26 of file TextureArray.cpp.

~TextureArray()

galaxy::graphics::TextureArray::~TextureArray ( )

virtual

Destructor.

Definition at line 41 of file TextureArray.cpp.

Member Function Documentation

operator=()

TextureArray & galaxy::graphics::TextureArray::operator=

(

TextureArray &&

t

)

Move assignment operator.

Definition at line 31 of file TextureArray.cpp.

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add()

bool galaxy::graphics::TextureArray::add ( const std::string & file )

nodiscard

Add a texture to the texture array.

All textures must be the same size.

Parameters

file	Texture to load in vfs.

Returns

True if texture array created successfully.

Definition at line 52 of file TextureArray.cpp.

build()

void galaxy::graphics::TextureArray::build	(	const int	width,
		const int	height )

Creates the array texture.

Parameters

width	Shared width of all textures.
height	Shared height of all textures.

Definition at line 70 of file TextureArray.cpp.

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build_from_tileset()

bool galaxy::graphics::TextureArray::build_from_tileset ( const std::string & file, const int tile_size )

nodiscard

Creates an array texture from a tileset.

Parameters

file	Texture in VFS to load.
tile_size	Size of the tile i.e. Width/Height.

Returns

True if texture loaded successfully.

Definition at line 113 of file TextureArray.cpp.

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bind()

void galaxy::graphics::TextureArray::bind ( )

overridevirtual

Activate context.

Implements galaxy::graphics::Texture.

Definition at line 179 of file TextureArray.cpp.

unbind()

void galaxy::graphics::TextureArray::unbind ( )

overridevirtual

Deactivate context.

Implements galaxy::graphics::Texture.

Definition at line 184 of file TextureArray.cpp.

Member Data Documentation

m_data

meta::vector<unsigned char*> galaxy::graphics::TextureArray::m_data

private

Data from adding a file to the texture array. Not kept after building.

Definition at line 93 of file TextureArray.hpp.

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

• galaxy/src/galaxy/graphics/gl/TextureArray.hpp
• galaxy/src/galaxy/graphics/gl/TextureArray.cpp