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5 | 5 | #import "flutter/shell/platform/darwin/macos/framework/Source/FlutterCompositor.h" |
6 | 6 |
|
7 | 7 | #include "flutter/fml/logging.h" |
| 8 | +#import "flutter/shell/platform/darwin/macos/framework/Source/FlutterIOSurfaceHolder.h" |
8 | 9 |
|
9 | 10 | namespace flutter { |
10 | 11 |
|
11 | 12 | FlutterCompositor::FlutterCompositor(id<FlutterViewProvider> view_provider, |
12 | | - FlutterPlatformViewController* platform_view_controller) |
13 | | - : view_provider_(view_provider), platform_view_controller_(platform_view_controller) { |
| 13 | + FlutterPlatformViewController* platform_view_controller, |
| 14 | + id<MTLDevice> mtl_device) |
| 15 | + : view_provider_(view_provider), |
| 16 | + platform_view_controller_(platform_view_controller), |
| 17 | + mtl_device_(mtl_device) { |
14 | 18 | FML_CHECK(view_provider != nullptr) << "view_provider cannot be nullptr"; |
15 | 19 | } |
16 | 20 |
|
|
19 | 23 | // TODO(dkwingsmt): This class only supports single-view for now. As more |
20 | 24 | // classes are gradually converted to multi-view, it should get the view ID |
21 | 25 | // from somewhere. |
22 | | - FlutterView* view = [view_provider_ getView:kFlutterDefaultViewId]; |
| 26 | + FlutterView* view = GetView(kFlutterDefaultViewId); |
23 | 27 | if (!view) { |
24 | 28 | return false; |
25 | 29 | } |
26 | 30 |
|
27 | 31 | CGSize size = CGSizeMake(config->size.width, config->size.height); |
28 | | - FlutterSurface* surface = [view.surfaceManager surfaceForSize:size]; |
29 | | - memset(backing_store_out, 0, sizeof(FlutterBackingStore)); |
30 | | - backing_store_out->struct_size = sizeof(FlutterBackingStore); |
31 | | - backing_store_out->type = kFlutterBackingStoreTypeMetal; |
| 32 | + |
32 | 33 | backing_store_out->metal.struct_size = sizeof(FlutterMetalBackingStore); |
33 | | - backing_store_out->metal.texture = surface.asFlutterMetalTexture; |
| 34 | + backing_store_out->metal.texture.struct_size = sizeof(FlutterMetalTexture); |
| 35 | + |
| 36 | + if (GetFrameStatus() != FrameStatus::kStarted) { |
| 37 | + StartFrame(); |
| 38 | + // If the backing store is for the first layer, return the MTLTexture for the |
| 39 | + // FlutterView. |
| 40 | + FlutterRenderBackingStore* backingStore = [view backingStoreForSize:size]; |
| 41 | + backing_store_out->metal.texture.texture = |
| 42 | + (__bridge FlutterMetalTextureHandle)backingStore.texture; |
| 43 | + } else { |
| 44 | + FlutterIOSurfaceHolder* io_surface_holder = [[FlutterIOSurfaceHolder alloc] init]; |
| 45 | + [io_surface_holder recreateIOSurfaceWithSize:size]; |
| 46 | + auto texture_descriptor = |
| 47 | + [MTLTextureDescriptor texture2DDescriptorWithPixelFormat:MTLPixelFormatBGRA8Unorm |
| 48 | + width:size.width |
| 49 | + height:size.height |
| 50 | + mipmapped:NO]; |
| 51 | + texture_descriptor.usage = |
| 52 | + MTLTextureUsageShaderRead | MTLTextureUsageRenderTarget | MTLTextureUsageShaderWrite; |
| 53 | + |
| 54 | + backing_store_out->metal.texture.texture = (__bridge_retained FlutterMetalTextureHandle) |
| 55 | + [mtl_device_ newTextureWithDescriptor:texture_descriptor |
| 56 | + iosurface:[io_surface_holder ioSurface] |
| 57 | + plane:0]; |
| 58 | + |
| 59 | + backing_store_out->metal.texture.user_data = (__bridge_retained void*)io_surface_holder; |
| 60 | + } |
| 61 | + |
| 62 | + backing_store_out->type = kFlutterBackingStoreTypeMetal; |
| 63 | + backing_store_out->metal.texture.destruction_callback = [](void* user_data) { |
| 64 | + if (user_data != nullptr) { |
| 65 | + CFRelease(user_data); |
| 66 | + } |
| 67 | + }; |
| 68 | + |
| 69 | + return true; |
| 70 | +} |
| 71 | + |
| 72 | +bool FlutterCompositor::CollectBackingStore(const FlutterBackingStore* backing_store) { |
| 73 | + // If we allocated this MTLTexture ourselves, user_data is not null, and we will need |
| 74 | + // to release it manually. |
| 75 | + if (backing_store->metal.texture.user_data != nullptr && |
| 76 | + backing_store->metal.texture.texture != nullptr) { |
| 77 | + CFRelease(backing_store->metal.texture.texture); |
| 78 | + } |
34 | 79 | return true; |
35 | 80 | } |
36 | 81 |
|
37 | 82 | bool FlutterCompositor::Present(uint64_t view_id, |
38 | 83 | const FlutterLayer** layers, |
39 | 84 | size_t layers_count) { |
40 | | - FlutterView* view = [view_provider_ getView:view_id]; |
| 85 | + FlutterView* view = GetView(view_id); |
41 | 86 | if (!view) { |
42 | 87 | return false; |
43 | 88 | } |
44 | 89 |
|
45 | | - NSMutableArray* surfaces = [NSMutableArray array]; |
46 | | - for (size_t i = 0; i < layers_count; i++) { |
47 | | - const FlutterLayer* layer = layers[i]; |
48 | | - if (layer->type == kFlutterLayerContentTypeBackingStore) { |
49 | | - FlutterSurface* surface = |
50 | | - [FlutterSurface fromFlutterMetalTexture:&layer->backing_store->metal.texture]; |
51 | | - |
52 | | - if (surface) { |
53 | | - FlutterSurfacePresentInfo* info = [[FlutterSurfacePresentInfo alloc] init]; |
54 | | - info.surface = surface; |
55 | | - info.offset = CGPointMake(layer->offset.x, layer->offset.y); |
56 | | - info.zIndex = i; |
57 | | - [surfaces addObject:info]; |
| 90 | + SetFrameStatus(FrameStatus::kPresenting); |
| 91 | + |
| 92 | + bool has_flutter_content = false; |
| 93 | + for (size_t i = 0; i < layers_count; ++i) { |
| 94 | + const auto* layer = layers[i]; |
| 95 | + FlutterBackingStore* backing_store = const_cast<FlutterBackingStore*>(layer->backing_store); |
| 96 | + |
| 97 | + switch (layer->type) { |
| 98 | + case kFlutterLayerContentTypeBackingStore: { |
| 99 | + if (backing_store->metal.texture.user_data) { |
| 100 | + FlutterIOSurfaceHolder* io_surface_holder = |
| 101 | + (__bridge FlutterIOSurfaceHolder*)backing_store->metal.texture.user_data; |
| 102 | + IOSurfaceRef io_surface = [io_surface_holder ioSurface]; |
| 103 | + InsertCALayerForIOSurface(view, io_surface); |
| 104 | + } |
| 105 | + has_flutter_content = true; |
| 106 | + break; |
58 | 107 | } |
59 | | - } |
| 108 | + case kFlutterLayerContentTypePlatformView: { |
| 109 | + PresentPlatformView(view, layer, i); |
| 110 | + break; |
| 111 | + } |
| 112 | + }; |
60 | 113 | } |
61 | 114 |
|
62 | | - [view.surfaceManager present:surfaces |
63 | | - notify:^{ |
64 | | - for (size_t i = 0; i < layers_count; i++) { |
65 | | - const FlutterLayer* layer = layers[i]; |
66 | | - switch (layer->type) { |
67 | | - case kFlutterLayerContentTypeBackingStore: |
68 | | - break; |
69 | | - case kFlutterLayerContentTypePlatformView: |
70 | | - PresentPlatformView(view, layer, i); |
71 | | - break; |
72 | | - } |
73 | | - } |
74 | | - [platform_view_controller_ disposePlatformViews]; |
75 | | - }]; |
76 | | - |
77 | | - return true; |
| 115 | + return EndFrame(has_flutter_content); |
78 | 116 | } |
79 | 117 |
|
80 | 118 | void FlutterCompositor::PresentPlatformView(FlutterView* default_base_view, |
81 | 119 | const FlutterLayer* layer, |
82 | 120 | size_t layer_position) { |
| 121 | + // TODO (https://github.com/flutter/flutter/issues/96668) |
| 122 | + // once the issue is fixed, this check will pass. |
83 | 123 | FML_DCHECK([[NSThread currentThread] isMainThread]) |
84 | 124 | << "Must be on the main thread to present platform views"; |
85 | 125 |
|
|
88 | 128 |
|
89 | 129 | FML_DCHECK(platform_view) << "Platform view not found for id: " << platform_view_id; |
90 | 130 |
|
91 | | - CGFloat scale = platform_view.layer.contentsScale; |
| 131 | + CGFloat scale = [[NSScreen mainScreen] backingScaleFactor]; |
92 | 132 | platform_view.frame = CGRectMake(layer->offset.x / scale, layer->offset.y / scale, |
93 | 133 | layer->size.width / scale, layer->size.height / scale); |
94 | 134 | if (platform_view.superview == nil) { |
|
97 | 137 | platform_view.layer.zPosition = layer_position; |
98 | 138 | } |
99 | 139 |
|
| 140 | +void FlutterCompositor::SetPresentCallback( |
| 141 | + const FlutterCompositor::PresentCallback& present_callback) { |
| 142 | + present_callback_ = present_callback; |
| 143 | +} |
| 144 | + |
| 145 | +void FlutterCompositor::StartFrame() { |
| 146 | + // First remove all CALayers from the superlayer. |
| 147 | + for (auto layer : active_ca_layers_) { |
| 148 | + [layer removeFromSuperlayer]; |
| 149 | + } |
| 150 | + |
| 151 | + // Reset active layers. |
| 152 | + active_ca_layers_.clear(); |
| 153 | + SetFrameStatus(FrameStatus::kStarted); |
| 154 | +} |
| 155 | + |
| 156 | +bool FlutterCompositor::EndFrame(bool has_flutter_content) { |
| 157 | + bool status = present_callback_(has_flutter_content); |
| 158 | + SetFrameStatus(FrameStatus::kEnded); |
| 159 | + return status; |
| 160 | +} |
| 161 | + |
| 162 | +FlutterView* FlutterCompositor::GetView(uint64_t view_id) { |
| 163 | + return [view_provider_ getView:view_id]; |
| 164 | +} |
| 165 | + |
| 166 | +void FlutterCompositor::SetFrameStatus(FlutterCompositor::FrameStatus frame_status) { |
| 167 | + frame_status_ = frame_status; |
| 168 | +} |
| 169 | + |
| 170 | +FlutterCompositor::FrameStatus FlutterCompositor::GetFrameStatus() { |
| 171 | + return frame_status_; |
| 172 | +} |
| 173 | + |
| 174 | +void FlutterCompositor::InsertCALayerForIOSurface(FlutterView* view, |
| 175 | + const IOSurfaceRef& io_surface, |
| 176 | + CATransform3D transform) { |
| 177 | + // FlutterCompositor manages the lifecycle of CALayers. |
| 178 | + CALayer* content_layer = [[CALayer alloc] init]; |
| 179 | + content_layer.transform = transform; |
| 180 | + content_layer.frame = view.layer.bounds; |
| 181 | + [content_layer setContents:(__bridge id)io_surface]; |
| 182 | + [view.layer addSublayer:content_layer]; |
| 183 | + |
| 184 | + active_ca_layers_.push_back(content_layer); |
| 185 | +} |
| 186 | + |
100 | 187 | } // namespace flutter |
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