Class BackendContext

constructor

• new BackendContext(handle, externallyOwned?): BackendContext

• Parameters

  • handle: number

  • externallyOwned: boolean = false

  Returns BackendContext

handle

Static from

• from(gl): BackendContext

• Parameters

  • gl: WebGLRenderingContext | WebGL2RenderingContext | BackendContext

  Returns BackendContext

getContext

• getContext(): null | WebGLRenderingContext

• Returns null | WebGLRenderingContext

makeCurrent

• makeCurrent(): boolean

• Returns boolean

clearCurrent

• clearCurrent(): void

• Returns void

registerTexture

• registerTexture(texture): number

• Register WebGLTexture in EmscriptenGL, And return handle.

  Parameters

  • texture: WebGLTexture

  Returns number

getTexture

• getTexture(handled): null | WebGLTexture

• Get WebGLTexture by handle.

  Parameters

  • handled: number

  Returns null | WebGLTexture

unregisterTexture

• unregisterTexture(handle): void

• Unregister WebGLTexture reference in EmscriptenGL.

  Parameters

  • handle: number

  Returns void

registerRenderTarget

• registerRenderTarget(framebuffer): number

• Register WebGLFramebuffer in EmscriptenGL, And return handle.

  Parameters

  • framebuffer: WebGLFramebuffer

  Returns number

getRenderTarget

• getRenderTarget(handle): null | WebGLFramebuffer

• Get WebGLFramebuffer by handle.

  Parameters

  • handle: number

  Returns null | WebGLFramebuffer

unregisterRenderTarget

• unregisterRenderTarget(handle): void

• Unregister WebGLTexture reference in EmscriptenGL.

  Parameters

  • handle: number

  Returns void

destroy

• destroy(): void

• Returns void