mirror of
https://github.com/encounter/engine.git
synced 2026-07-10 03:18:43 -07:00
Chinmay Garde
101 lines
3.6 KiB
Plaintext
101 lines
3.6 KiB
Plaintext
// Copyright 2013 The Flutter Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "flutter/shell/platform/darwin/ios/framework/Source/FlutterOverlayView.h"
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#include "flutter/common/settings.h"
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#include "flutter/common/task_runners.h"
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#include "flutter/flow/layers/layer_tree.h"
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#include "flutter/fml/platform/darwin/cf_utils.h"
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#include "flutter/fml/synchronization/waitable_event.h"
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#include "flutter/fml/trace_event.h"
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#include "flutter/shell/common/platform_view.h"
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#include "flutter/shell/common/rasterizer.h"
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#include "flutter/shell/platform/darwin/ios/framework/Source/FlutterView.h"
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#include "flutter/shell/platform/darwin/ios/ios_surface_gl.h"
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#if FLUTTER_SHELL_ENABLE_METAL
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#include "flutter/shell/platform/darwin/ios/ios_surface_metal.h"
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#endif
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#include "flutter/shell/platform/darwin/ios/ios_surface_software.h"
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#include "third_party/skia/include/utils/mac/SkCGUtils.h"
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// This is mostly a duplication of FlutterView.
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// TODO(amirh): once GL support is in evaluate if we can merge this with FlutterView.
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@implementation FlutterOverlayView
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- (instancetype)initWithFrame:(CGRect)frame {
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@throw([NSException exceptionWithName:@"FlutterOverlayView must init or initWithContentsScale"
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reason:nil
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userInfo:nil]);
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}
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- (instancetype)initWithCoder:(NSCoder*)aDecoder {
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@throw([NSException exceptionWithName:@"FlutterOverlayView must init or initWithContentsScale"
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reason:nil
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userInfo:nil]);
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}
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- (instancetype)init {
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self = [super initWithFrame:CGRectZero];
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if (self) {
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self.layer.opaque = NO;
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self.userInteractionEnabled = NO;
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}
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return self;
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}
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- (instancetype)initWithContentsScale:(CGFloat)contentsScale {
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self = [self init];
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if ([self.layer isKindOfClass:[CAEAGLLayer class]]) {
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CAEAGLLayer* layer = reinterpret_cast<CAEAGLLayer*>(self.layer);
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layer.allowsGroupOpacity = NO;
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layer.contentsScale = contentsScale;
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layer.rasterizationScale = contentsScale;
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#if FLUTTER_SHELL_ENABLE_METAL
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} else if ([self.layer isKindOfClass:[CAMetalLayer class]]) {
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CAMetalLayer* layer = reinterpret_cast<CAMetalLayer*>(self.layer);
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layer.allowsGroupOpacity = NO;
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layer.contentsScale = contentsScale;
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layer.rasterizationScale = contentsScale;
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#endif // FLUTTER_SHELL_ENABLE_METAL
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}
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return self;
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}
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+ (Class)layerClass {
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return [FlutterView layerClass];
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}
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- (std::unique_ptr<flutter::IOSSurface>)createSurface:
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(std::shared_ptr<flutter::IOSGLContext>)gl_context {
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if ([self.layer isKindOfClass:[CAEAGLLayer class]]) {
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fml::scoped_nsobject<CAEAGLLayer> eagl_layer(
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reinterpret_cast<CAEAGLLayer*>([self.layer retain]));
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if (@available(iOS 9.0, *)) {
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eagl_layer.get().presentsWithTransaction = YES;
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}
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return std::make_unique<flutter::IOSSurfaceGL>(std::move(eagl_layer), gl_context);
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#if FLUTTER_SHELL_ENABLE_METAL
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} else if ([self.layer isKindOfClass:[CAMetalLayer class]]) {
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fml::scoped_nsobject<CAMetalLayer> metalLayer(
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reinterpret_cast<CAMetalLayer*>([self.layer retain]));
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if (@available(iOS 8.0, *)) {
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metalLayer.get().presentsWithTransaction = YES;
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}
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return std::make_unique<flutter::IOSSurfaceMetal>(std::move(metalLayer));
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#endif // FLUTTER_SHELL_ENABLE_METAL
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} else {
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fml::scoped_nsobject<CALayer> layer(reinterpret_cast<CALayer*>([self.layer retain]));
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return std::make_unique<flutter::IOSSurfaceSoftware>(std::move(layer), nullptr);
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}
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}
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// TODO(amirh): implement drawLayer to support snapshotting.
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@end
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