Inheritance diagram for gdk::webgl1es2_texture:

Public Types
enum class	minification_filter { linear , nearest , nearest_mipmap_nearest , linear_mipmap_nearest , nearest_mipmap_linear , linear_mipmap_linear }

enum class	magnification_filter { nearest , linear }

enum class	format { alpha , depth , luminance_alpha , rgb , rgba }

Public Types inherited from gdk::texture
enum class	format { grey , rg , rgb , rgba }
	format of data in the component_type array More...

enum class	wrap_mode { clamped , repeat , mirrored }
	behavior when sampling outside of the normalized texture range (u0-1, v0-1) More...

Public Member Functions
GLuint	getHandle () const
	returns the handle to the webgl1es2_texture in the opengl context

void	activateAndBind (const GLint aUnit) const
	activates the texture in given unit and binds it to GL_TEXTURE_2D, so that it can be manipulated by other opengl calls

bool	operator== (const webgl1es2_texture &) const
	equality semantics

bool	operator!= (const webgl1es2_texture &) const
	equality semantics

webgl1es2_texture &	operator= (webgl1es2_texture &&)=default
	move semantics

	webgl1es2_texture (webgl1es2_texture &&)=default
	move semantics

	webgl1es2_texture (const texture_data::view &aTextureView, const wrap_mode aWrapModeU=wrap_mode::repeat, const wrap_mode aWrapModeV=wrap_mode::repeat, const minification_filter minFilter=minification_filter::linear, const magnification_filter magFilter=magnification_filter::nearest)
	creates a 2d webgl1es2_texture from decoded image data.

	webgl1es2_texture (const webgl1es2_texture::format aFormat, const size_t aWidthInTexels, const size_t aHeightInTexels, const texture_data::channel_type *aData, const wrap_mode aWrapModeU=wrap_mode::repeat, const wrap_mode aWrapModeV=wrap_mode::repeat, const minification_filter minFilter=minification_filter::linear, const magnification_filter magFilter=magnification_filter::nearest)

external interface
virtual void	update_data (const texture_data::view &) override
	replace the texture data with new data

virtual void	update_data (const texture_data::view &, const size_t offsetX, const size_t offsetY) override

Public Member Functions inherited from gdk::texture
virtual	~texture ()=default
	trivial destructor

Static Public Member Functions
static const std::shared_ptr< gdk::webgl1es2_texture >	GetCheckerboardOfDeath ()
	webgl1es2_texture useful for indicating webgl1es2_texture related failure lazily instantiated.

static const GLint	getMaxTextureSize ()
	gets the max texture size supported by the current graphics device

Additional Inherited Members
Protected Member Functions inherited from gdk::texture
	texture ()=default
	interface type cannot be instantiated

Member Enumeration Documentation

◆ magnification_filter

enum class gdk::webgl1es2_texture::magnification_filter

strong

The webgl1es2_texture magnification function is used when the pixel being webgl1es2_textured maps to an area less than or equal to one webgl1es2_texture element

Enumerator
nearest	Returns the value of the webgl1es2_texture element that is nearest (in Manhattan distance) to the center of the pixel being webgl1es2_textured.
linear	Returns the weighted average of the four webgl1es2_texture elements that are closest to the center of the pixel being webgl1es2_textured.

◆ minification_filter

enum class gdk::webgl1es2_texture::minification_filter

strong

The webgl1es2_texture minifying function is used whenever the pixel being webgl1es2_textured maps to an area greater than one webgl1es2_texture element.

Enumerator
linear	Returns the value of the webgl1es2_texture element that is nearest (in Manhattan distance) to the center of the pixel being webgl1es2_textured.
nearest	Returns the weighted average of the four webgl1es2_texture elements that are closest to the center of the pixel being webgl1es2_textured.
nearest_mipmap_nearest	Chooses the mipmap that most closely matches the size of the pixel being webgl1es2_textured and uses the GL_NEAREST criterion (the webgl1es2_texture element nearest to the center of the pixel) to produce a webgl1es2_texture value.
linear_mipmap_nearest	Chooses the mipmap that most closely matches the size of the pixel being webgl1es2_textured and uses the GL_LINEAR criterion (a weighted average of the four webgl1es2_texture elements that are closest to the center of the pixel) to produce a webgl1es2_texture value.
nearest_mipmap_linear	Chooses the two mipmaps that most closely match the size of the pixel being webgl1es2_textured and uses the GL_NEAREST criterion (the webgl1es2_texture element nearest to the center of the pixel) to produce a webgl1es2_texture value from each mipmap. The final webgl1es2_texture value is a weighted average of those two values.
linear_mipmap_linear	Chooses the two mipmaps that most closely match the size of the pixel being webgl1es2_textured and uses the GL_LINEAR criterion (a weighted average of the four webgl1es2_texture elements that are closest to the center of the pixel) to produce a webgl1es2_texture value from each mipmap. The final webgl1es2_texture value is a weighted average of those two values.

Constructor & Destructor Documentation

◆ webgl1es2_texture()

gdk::webgl1es2_texture::webgl1es2_texture	(	const texture_data::view &	aTextureView,
		const wrap_mode	aWrapModeU = wrap_mode::repeat,
		const wrap_mode	aWrapModeV = wrap_mode::repeat,
		const minification_filter	minFilter = minification_filter::linear,
		const magnification_filter	magFilter = magnification_filter::nearest )

creates a 2d webgl1es2_texture from decoded image data.

Exceptions

length,width of the webgl1es2_texture must be power of 2

Member Function Documentation

◆ update_data() [1/2]

virtual void gdk::webgl1es2_texture::update_data ( const texture_data::view & )

overridevirtual

replace the texture data with new data

Implements gdk::texture.

◆ update_data() [2/2]

virtual void gdk::webgl1es2_texture::update_data	(	const texture_data::view &	,
		const size_t	offsetX,
		const size_t	offsetY )

overridevirtual

update a section of texture data \warn formats must match \warn new data must be kept within bounds of the existing data

Implements gdk::texture.

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

/home/deck/Workspace/gdk-test_game/thirdparty/gdk-graphics/impl/opengl/webgl1es2/include/gdk/webgl1es2_texture.h

Public Types

Public Member Functions

Static Public Member Functions

Additional Inherited Members