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1 // Copyright 2016 The Chromium Authors. All rights reserved. | 1 // Copyright 2016 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "content/browser/renderer_host/offscreen_canvas_surface_impl.h" | 5 #include "content/browser/renderer_host/offscreen_canvas_surface_impl.h" |
6 | 6 |
7 #include <utility> | 7 #include <utility> |
8 | 8 |
9 #include "base/bind_helpers.h" | 9 #include "base/bind_helpers.h" |
10 #include "cc/surfaces/surface.h" | 10 #include "cc/surfaces/surface.h" |
11 #include "cc/surfaces/surface_manager.h" | 11 #include "cc/surfaces/surface_manager.h" |
12 #include "content/browser/compositor/surface_utils.h" | 12 #include "content/browser/compositor/surface_utils.h" |
13 #include "content/browser/renderer_host/offscreen_canvas_surface_manager.h" | 13 #include "content/browser/renderer_host/offscreen_canvas_surface_manager.h" |
14 #include "content/public/browser/browser_thread.h" | 14 #include "content/public/browser/browser_thread.h" |
15 #include "mojo/public/cpp/bindings/strong_binding.h" | |
16 | 15 |
17 namespace content { | 16 namespace content { |
18 | 17 |
19 OffscreenCanvasSurfaceImpl::OffscreenCanvasSurfaceImpl() | 18 OffscreenCanvasSurfaceImpl::OffscreenCanvasSurfaceImpl( |
20 : id_allocator_(new cc::SurfaceIdAllocator()) {} | 19 const cc::FrameSinkId& frame_sink_id, |
| 20 blink::mojom::OffscreenCanvasSurfaceClientPtr client) |
| 21 : client_(std::move(client)), frame_sink_id_(frame_sink_id) { |
| 22 OffscreenCanvasSurfaceManager::GetInstance() |
| 23 ->RegisterOffscreenCanvasSurfaceInstance(frame_sink_id_, this); |
| 24 } |
21 | 25 |
22 OffscreenCanvasSurfaceImpl::~OffscreenCanvasSurfaceImpl() { | 26 OffscreenCanvasSurfaceImpl::~OffscreenCanvasSurfaceImpl() { |
23 if (frame_sink_id_.is_valid()) { | 27 if (frame_sink_id_.is_valid()) { |
24 OffscreenCanvasSurfaceManager::GetInstance() | 28 OffscreenCanvasSurfaceManager::GetInstance() |
25 ->UnregisterOffscreenCanvasSurfaceInstance(frame_sink_id_); | 29 ->UnregisterOffscreenCanvasSurfaceInstance(frame_sink_id_); |
26 } | 30 } |
27 } | 31 } |
28 | 32 |
29 // static | 33 // static |
30 void OffscreenCanvasSurfaceImpl::Create( | 34 void OffscreenCanvasSurfaceImpl::Create( |
31 mojo::InterfaceRequest<blink::mojom::OffscreenCanvasSurface> request) { | 35 const cc::FrameSinkId& frame_sink_id, |
32 mojo::MakeStrongBinding(base::MakeUnique<OffscreenCanvasSurfaceImpl>(), | 36 blink::mojom::OffscreenCanvasSurfaceClientPtr client, |
33 std::move(request)); | 37 blink::mojom::OffscreenCanvasSurfaceRequest request) { |
| 38 std::unique_ptr<OffscreenCanvasSurfaceImpl> impl = |
| 39 base::MakeUnique<OffscreenCanvasSurfaceImpl>(frame_sink_id, |
| 40 std::move(client)); |
| 41 OffscreenCanvasSurfaceImpl* surface_service = impl.get(); |
| 42 surface_service->binding_ = |
| 43 mojo::MakeStrongBinding(std::move(impl), std::move(request)); |
34 } | 44 } |
35 | 45 |
36 void OffscreenCanvasSurfaceImpl::GetSurfaceId(GetSurfaceIdCallback callback) { | 46 void OffscreenCanvasSurfaceImpl::OnSurfaceCreated( |
37 DCHECK_CURRENTLY_ON(BrowserThread::UI); | 47 const cc::SurfaceId& surface_id, |
38 if (frame_sink_id_.is_valid()) { | 48 const gfx::Size& frame_size, |
39 // This IPC should be only called once for each HTMLCanvasElement. In this | 49 float device_scale_factor) { |
40 // case, frame_sink_id_ is still unset. | 50 DCHECK_EQ(surface_id.frame_sink_id(), frame_sink_id_); |
41 // As the browser makes no assumption of correct behavior of renderer, in | 51 if (!current_local_frame_id_.is_valid() || |
42 // an unwanted situation when this function is invoked twice, we need to | 52 surface_id.local_frame_id() != current_local_frame_id_) { |
43 // unregister the instance from manager. | 53 current_local_frame_id_ = surface_id.local_frame_id(); |
44 OffscreenCanvasSurfaceManager::GetInstance() | 54 if (client_) { |
45 ->UnregisterOffscreenCanvasSurfaceInstance(frame_sink_id_); | 55 client_->OnSurfaceCreated(surface_id, frame_size.width(), |
46 mojo::ReportBadMessage( | 56 frame_size.height(), device_scale_factor); |
47 "The same OffscreenCanvasSurfaceImpl is registered to " | 57 } |
48 "OffscreenCanvasSurfaceManager twice."); | |
49 } | 58 } |
50 | |
51 frame_sink_id_ = AllocateFrameSinkId(); | |
52 cc::SurfaceId surface_id = | |
53 cc::SurfaceId(frame_sink_id_, id_allocator_->GenerateId()); | |
54 | |
55 OffscreenCanvasSurfaceManager::GetInstance() | |
56 ->RegisterOffscreenCanvasSurfaceInstance(frame_sink_id_, this); | |
57 | |
58 std::move(callback).Run(surface_id); | |
59 } | 59 } |
60 | 60 |
61 void OffscreenCanvasSurfaceImpl::Require(const cc::SurfaceId& surface_id, | 61 void OffscreenCanvasSurfaceImpl::Require(const cc::SurfaceId& surface_id, |
62 const cc::SurfaceSequence& sequence) { | 62 const cc::SurfaceSequence& sequence) { |
63 cc::SurfaceManager* manager = GetSurfaceManager(); | 63 cc::SurfaceManager* manager = GetSurfaceManager(); |
64 cc::Surface* surface = manager->GetSurfaceForId(surface_id); | 64 cc::Surface* surface = manager->GetSurfaceForId(surface_id); |
65 if (!surface) { | 65 if (!surface) { |
66 DLOG(ERROR) << "Attempting to require callback on nonexistent surface"; | 66 DLOG(ERROR) << "Attempting to require callback on nonexistent surface"; |
67 return; | 67 return; |
68 } | 68 } |
69 surface->AddDestructionDependency(sequence); | 69 surface->AddDestructionDependency(sequence); |
70 } | 70 } |
71 | 71 |
72 void OffscreenCanvasSurfaceImpl::Satisfy(const cc::SurfaceSequence& sequence) { | 72 void OffscreenCanvasSurfaceImpl::Satisfy(const cc::SurfaceSequence& sequence) { |
73 std::vector<uint32_t> sequences; | 73 std::vector<uint32_t> sequences; |
74 sequences.push_back(sequence.sequence); | 74 sequences.push_back(sequence.sequence); |
75 cc::SurfaceManager* manager = GetSurfaceManager(); | 75 cc::SurfaceManager* manager = GetSurfaceManager(); |
76 manager->DidSatisfySequences(sequence.frame_sink_id, &sequences); | 76 manager->DidSatisfySequences(sequence.frame_sink_id, &sequences); |
77 } | 77 } |
78 | 78 |
79 } // namespace content | 79 } // namespace content |
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