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/*
* Copyright (C) 2017-2023 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
typedef (
#if defined(ENABLE_WEBGL) && ENABLE_WEBGL
WebGLRenderingContext or
WebGL2RenderingContext or
#endif
ImageBitmapRenderingContext or
OffscreenCanvasRenderingContext2D) OffscreenRenderingContext;
dictionary ImageEncodeOptions
{
DOMString type = "image/png";
unrestricted double quality = 1.0;
};
enum OffscreenRenderingContextType
{
"2d",
"webgl",
"webgl2",
"bitmaprenderer"
};
[
ActiveDOMObject,
GenerateIsReachable=Impl,
EnabledBySetting=OffscreenCanvasEnabled,
Conditional=OFFSCREEN_CANVAS,
ConditionalForWorker=OFFSCREEN_CANVAS_IN_WORKERS,
EnabledForContext,
Exposed=(Window,Worker)
] interface OffscreenCanvas : EventTarget {
[CallWith=CurrentScriptExecutionContext] constructor([EnforceRange] unsigned long width, [EnforceRange] unsigned long height);
[CallTracer=InspectorCanvasCallTracer] attribute [EnforceRange] unsigned long width;
[CallTracer=InspectorCanvasCallTracer] attribute [EnforceRange] unsigned long height;
[CallWith=CurrentGlobalObject] OffscreenRenderingContext? getContext(OffscreenRenderingContextType contextType, any... arguments);
ImageBitmap transferToImageBitmap();
Promise<Blob> convertToBlob(optional ImageEncodeOptions options);
};
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