Class BackendContext

Hierarchy

BackendContext

Index

Methods

from getContext makeCurrent clearCurrent registerTexture getTexture unregisterTexture registerRenderTarget getRenderTarget unregisterRenderTarget destroy register

Constructors

Properties

handle adopted isDestroyed oldHandle

Methods

`Static` from

from(gl: WebGLRenderingContext | WebGL2RenderingContext | BackendContext): BackendContext
Parameters
- gl: WebGLRenderingContext | WebGL2RenderingContext | BackendContext
Returns BackendContext
- Defined in src/core/backend-context.ts:5

getContext

getContext(): null | WebGLRenderingContext
Returns null | WebGLRenderingContext
- Defined in src/core/backend-context.ts:38

makeCurrent

makeCurrent(): boolean
Returns boolean
- Defined in src/core/backend-context.ts:42

clearCurrent

clearCurrent(): void
Returns void
- Defined in src/core/backend-context.ts:49

registerTexture

registerTexture(texture: WebGLTexture): number
Register WebGLTexture in EmscriptenGL, And return handle.
Parameters
- texture: WebGLTexture
Returns number
- Defined in src/core/backend-context.ts:60

getTexture

getTexture(handled: number): null | WebGLTexture
Get WebGLTexture by handle.
Parameters
- handled: number
Returns null | WebGLTexture
- Defined in src/core/backend-context.ts:66

unregisterTexture

unregisterTexture(handle: number): void
Unregister WebGLTexture reference in EmscriptenGL.
Parameters
- handle: number
Returns void
- Defined in src/core/backend-context.ts:72

registerRenderTarget

registerRenderTarget(framebuffer: WebGLFramebuffer): number
Register WebGLFramebuffer in EmscriptenGL, And return handle.
Parameters
- framebuffer: WebGLFramebuffer
Returns number
- Defined in src/core/backend-context.ts:78

getRenderTarget

getRenderTarget(handle: number): null | WebGLFramebuffer
Get WebGLFramebuffer by handle.
Parameters
- handle: number
Returns null | WebGLFramebuffer
- Defined in src/core/backend-context.ts:84

unregisterRenderTarget

unregisterRenderTarget(handle: number): void
Unregister WebGLTexture reference in EmscriptenGL.
Parameters
- handle: number
Returns void
- Defined in src/core/backend-context.ts:90

destroy

destroy(): void
Returns void
- Defined in src/core/backend-context.ts:94

`Private` register

register<T>(table: (null | T)[], item: T): number
Type Parameters
- T
Parameters
- table: (null | T)[]
- item: T
Returns number
- Defined in src/core/backend-context.ts:99

Constructors

constructor

new BackendContext(handle: number, adopted?: boolean): BackendContext
Parameters
- handle: number
- adopted: boolean = false
Returns BackendContext
- Defined in src/core/backend-context.ts:33

Properties

handle

handle: number

`Private` adopted

adopted: boolean

`Private` isDestroyed

isDestroyed: boolean = false

`Private` oldHandle

oldHandle: number = 0

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