lib/web_ui/lib/src/engine/skwasm/skwasm_impl/raw/raw_surface.dart

// Copyright 2013 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

@DefaultAsset('skwasm')
library skwasm_impl;

import 'dart:ffi';
import 'package:ui/src/engine/skwasm/skwasm_impl.dart';

final class RawSurface extends Opaque {}
typedef SurfaceHandle = Pointer<RawSurface>;

final class RawRenderCallback extends Opaque {}
typedef OnRenderCallbackHandle = Pointer<RawRenderCallback>;

typedef CallbackId = int;

@Native<SurfaceHandle Function()>(symbol: 'surface_create', isLeaf: true)
external SurfaceHandle surfaceCreate();

@Native<UnsignedLong Function(SurfaceHandle)>(symbol: 'surface_getThreadId', isLeaf: true)
external int surfaceGetThreadId(SurfaceHandle handle);

@Native<Void Function(SurfaceHandle, OnRenderCallbackHandle)>(
  symbol: 'surface_setCallbackHandler',
  isLeaf: true)
external void surfaceSetCallbackHandler(
  SurfaceHandle surface,
  OnRenderCallbackHandle callback,
);

@Native<Void Function(SurfaceHandle)>(
  symbol: 'surface_destroy',
  isLeaf: true)
external void surfaceDestroy(SurfaceHandle surface);

@Native<Int32 Function(SurfaceHandle, Pointer<PictureHandle>, Int)>(
  symbol: 'surface_renderPictures',
  isLeaf: true)
external CallbackId surfaceRenderPictures(SurfaceHandle surface, Pointer<PictureHandle> picture, int count);

@Native<Int32 Function(
  SurfaceHandle,
  ImageHandle,
  Int
)>(symbol: 'surface_rasterizeImage', isLeaf: true)
external CallbackId surfaceRasterizeImage(
  SurfaceHandle handle,
  ImageHandle image,
  int format,
);