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1 // Copyright 2014 The Chromium 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 "components/mus/surfaces/direct_output_surface.h" | |
6 | |
7 #include <stdint.h> | |
8 | |
9 #include "base/bind.h" | |
10 #include "base/memory/ptr_util.h" | |
11 #include "cc/output/compositor_frame.h" | |
12 #include "cc/output/context_provider.h" | |
13 #include "cc/output/output_surface_client.h" | |
14 #include "cc/scheduler/begin_frame_source.h" | |
15 #include "gpu/command_buffer/client/context_support.h" | |
16 #include "gpu/command_buffer/client/gles2_interface.h" | |
17 | |
18 namespace mus { | |
19 | |
20 DirectOutputSurface::DirectOutputSurface( | |
21 scoped_refptr<SurfacesContextProvider> context_provider, | |
22 cc::SyntheticBeginFrameSource* synthetic_begin_frame_source) | |
23 : cc::OutputSurface(context_provider, nullptr, nullptr), | |
24 synthetic_begin_frame_source_(synthetic_begin_frame_source), | |
25 weak_ptr_factory_(this) { | |
26 context_provider->SetDelegate(this); | |
27 } | |
28 | |
29 DirectOutputSurface::~DirectOutputSurface() = default; | |
30 | |
31 bool DirectOutputSurface::BindToClient(cc::OutputSurfaceClient* client) { | |
32 if (!cc::OutputSurface::BindToClient(client)) | |
33 return false; | |
34 | |
35 if (capabilities_.uses_default_gl_framebuffer) { | |
36 capabilities_.flipped_output_surface = | |
37 context_provider()->ContextCapabilities().flips_vertically; | |
38 } | |
39 return true; | |
40 } | |
41 | |
42 void DirectOutputSurface::OnVSyncParametersUpdated( | |
43 const base::TimeTicks& timebase, | |
44 const base::TimeDelta& interval) { | |
45 // TODO(brianderson): We should not be receiving 0 intervals. | |
46 synthetic_begin_frame_source_->OnUpdateVSyncParameters( | |
47 timebase, | |
48 interval.is_zero() ? cc::BeginFrameArgs::DefaultInterval() : interval); | |
49 } | |
50 | |
51 void DirectOutputSurface::SwapBuffers(cc::CompositorFrame frame) { | |
52 DCHECK(context_provider_); | |
53 DCHECK(frame.gl_frame_data); | |
54 if (frame.gl_frame_data->sub_buffer_rect == | |
55 gfx::Rect(frame.gl_frame_data->size)) { | |
56 context_provider_->ContextSupport()->Swap(); | |
57 } else { | |
58 context_provider_->ContextSupport()->PartialSwapBuffers( | |
59 frame.gl_frame_data->sub_buffer_rect); | |
60 } | |
61 | |
62 gpu::gles2::GLES2Interface* gl = context_provider_->ContextGL(); | |
63 const GLuint64 fence_sync = gl->InsertFenceSyncCHROMIUM(); | |
64 gl->ShallowFlushCHROMIUM(); | |
65 | |
66 gpu::SyncToken sync_token; | |
67 gl->GenUnverifiedSyncTokenCHROMIUM(fence_sync, sync_token.GetData()); | |
68 | |
69 context_provider_->ContextSupport()->SignalSyncToken( | |
70 sync_token, base::Bind(&OutputSurface::OnSwapBuffersComplete, | |
71 weak_ptr_factory_.GetWeakPtr())); | |
72 client_->DidSwapBuffers(); | |
73 } | |
74 | |
75 uint32_t DirectOutputSurface::GetFramebufferCopyTextureFormat() { | |
76 // TODO(danakj): What attributes are used for the default framebuffer here? | |
77 // Can it have alpha? SurfacesContextProvider doesn't take any attributes. | |
78 return GL_RGB; | |
79 } | |
80 | |
81 } // namespace mus | |
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