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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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