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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 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 | 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 "cc/surfaces/surface.h" | 5 #include "cc/surfaces/surface.h" |
6 | 6 |
7 #include <algorithm> | 7 #include <algorithm> |
8 | 8 |
9 #include "cc/output/compositor_frame.h" | 9 #include "cc/output/compositor_frame.h" |
10 #include "cc/output/copy_output_request.h" | 10 #include "cc/output/copy_output_request.h" |
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39 | 39 |
40 void Surface::QueueFrame(scoped_ptr<CompositorFrame> frame, | 40 void Surface::QueueFrame(scoped_ptr<CompositorFrame> frame, |
41 const DrawCallback& callback) { | 41 const DrawCallback& callback) { |
42 DCHECK(factory_); | 42 DCHECK(factory_); |
43 ClearCopyRequests(); | 43 ClearCopyRequests(); |
44 TakeLatencyInfo(&frame->metadata.latency_info); | 44 TakeLatencyInfo(&frame->metadata.latency_info); |
45 scoped_ptr<CompositorFrame> previous_frame = current_frame_.Pass(); | 45 scoped_ptr<CompositorFrame> previous_frame = current_frame_.Pass(); |
46 current_frame_ = frame.Pass(); | 46 current_frame_ = frame.Pass(); |
47 factory_->ReceiveFromChild( | 47 factory_->ReceiveFromChild( |
48 current_frame_->delegated_frame_data->resource_list); | 48 current_frame_->delegated_frame_data->resource_list); |
49 ++frame_index_; | 49 // Empty frames shouldn't be drawn and shouldn't contribute damage, so don't |
| 50 // increment frame index for them. |
| 51 if (!current_frame_ || |
| 52 !current_frame_->delegated_frame_data->render_pass_list.empty()) |
| 53 ++frame_index_; |
50 | 54 |
51 if (previous_frame) { | 55 if (previous_frame) { |
52 ReturnedResourceArray previous_resources; | 56 ReturnedResourceArray previous_resources; |
53 TransferableResource::ReturnResources( | 57 TransferableResource::ReturnResources( |
54 previous_frame->delegated_frame_data->resource_list, | 58 previous_frame->delegated_frame_data->resource_list, |
55 &previous_resources); | 59 &previous_resources); |
56 factory_->UnrefResources(previous_resources); | 60 factory_->UnrefResources(previous_resources); |
57 } | 61 } |
58 if (!draw_callback_.is_null()) | 62 if (!draw_callback_.is_null()) |
59 draw_callback_.Run(SurfaceDrawStatus::DRAW_SKIPPED); | 63 draw_callback_.Run(SurfaceDrawStatus::DRAW_SKIPPED); |
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131 if (current_frame_) { | 135 if (current_frame_) { |
132 for (const auto& render_pass : | 136 for (const auto& render_pass : |
133 current_frame_->delegated_frame_data->render_pass_list) { | 137 current_frame_->delegated_frame_data->render_pass_list) { |
134 for (const auto& copy_request : render_pass->copy_requests) | 138 for (const auto& copy_request : render_pass->copy_requests) |
135 copy_request->SendEmptyResult(); | 139 copy_request->SendEmptyResult(); |
136 } | 140 } |
137 } | 141 } |
138 } | 142 } |
139 | 143 |
140 } // namespace cc | 144 } // namespace cc |
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