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ios_context.mm
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1 // Copyright 2013 The Flutter Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #include "flutter/shell/platform/darwin/ios/ios_context.h"
6
7 #include <memory>
8
9 #include "flutter/fml/logging.h"
10 #import "flutter/shell/platform/darwin/common/InternalFlutterSwiftCommon/InternalFlutterSwiftCommon.h"
11 #include "flutter/shell/platform/darwin/ios/ios_context_metal_impeller.h"
12 #include "flutter/shell/platform/darwin/ios/ios_context_noop.h"
13 #include "flutter/shell/platform/darwin/ios/rendering_api_selection.h"
14
15 FLUTTER_ASSERT_ARC
16
17 namespace flutter {
18
19 IOSContext::IOSContext() = default;
20
21 IOSContext::~IOSContext() = default;
22
23 std::unique_ptr<IOSContext> IOSContext::Create(
24 IOSRenderingAPI api,
25 IOSRenderingBackend backend,
26 const std::shared_ptr<const fml::SyncSwitch>& is_gpu_disabled_sync_switch,
27 const Settings& settings) {
28 switch (api) {
29 case IOSRenderingAPI::kSoftware:
30 [FlutterLogger logImportant:@"Software rendering is incompatible with Impeller.\n"
31 "Software rendering may have been automatically selected when "
32 "running on a simulator in an environment that does not support "
33 "Metal. Enabling GPU passthrough in your environment may fix "
34 "this."];
35 return std::make_unique<IOSContextNoop>();
36 case IOSRenderingAPI::kMetal:
37 switch (backend) {
38 case IOSRenderingBackend::kSkia:
39 [FlutterLogger logFatal:@"Impeller opt-out unavailable."];
40 return nullptr;
41 case IOSRenderingBackend::kImpeller:
42 return std::make_unique<IOSContextMetalImpeller>(settings, is_gpu_disabled_sync_switch);
43 }
44 default:
45 break;
46 }
47 FML_CHECK(false);
48 return nullptr;
49 }
50
51 IOSRenderingBackend IOSContext::GetBackend() const {
52 // Overridden by Impeller subclasses.
53 return IOSRenderingBackend::kSkia;
54 }
55
56 std::shared_ptr<impeller::Context> IOSContext::GetImpellerContext() const {
57 return nullptr;
58 }
59
60 std::shared_ptr<impeller::AiksContext> IOSContext::GetAiksContext() const {
61 return nullptr;
62 }
63
64 } // namespace flutter
flutter::IOSContext::IOSContext
IOSContext()
flutter::IOSContext::GetImpellerContext
virtual std::shared_ptr< impeller::Context > GetImpellerContext() const
Definition: ios_context.mm:56
flutter::IOSContext::Create
static std::unique_ptr< IOSContext > Create(IOSRenderingAPI api, IOSRenderingBackend backend, const std::shared_ptr< const fml::SyncSwitch > &is_gpu_disabled_sync_switch, const Settings &settings)
Create an iOS context object capable of creating the on-screen and off-screen GPU context for use by ...
Definition: ios_context.mm:23
flutter::IOSContext::~IOSContext
virtual ~IOSContext()
Collects the context object. This must happen on the thread on which this object was created.
flutter::IOSContext::GetBackend
virtual IOSRenderingBackend GetBackend() const
Get the rendering backend used by this context.
Definition: ios_context.mm:51
flutter::IOSContext::GetAiksContext
virtual std::shared_ptr< impeller::AiksContext > GetAiksContext() const
Definition: ios_context.mm:60
ios_context.h
ios_context_metal_impeller.h
ios_context_noop.h
FLUTTER_ASSERT_ARC
Definition: FlutterChannelKeyResponder.mm:13
flutter
Definition: accessibility_bridge.h:26
flutter::IOSRenderingBackend
IOSRenderingBackend
Definition: rendering_api_selection.h:19
flutter::IOSRenderingBackend::kImpeller
@ kImpeller
flutter::IOSRenderingBackend::kSkia
@ kSkia
flutter::IOSRenderingAPI
IOSRenderingAPI
Definition: rendering_api_selection.h:14
flutter::IOSRenderingAPI::kMetal
@ kMetal
flutter::IOSRenderingAPI::kSoftware
@ kSoftware
rendering_api_selection.h