mirror of
https://github.com/flutter/flutter.git
synced 2026-02-20 02:29:02 +08:00
eef941140f
If we have a layer with a picture where the cull rect computes down to an empty rectangle attempting to rasterize it into a ganesh surface will fail in the same manner that trying to ganesh rasterize an empty layer will. This teaches LayerHost to check for this case and handle it like an empty layer. Fixes #1337
57 lines
1.5 KiB
C++
57 lines
1.5 KiB
C++
// Copyright 2014 The Chromium Authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style license that can be
|
|
// found in the LICENSE file.
|
|
|
|
#include "services/sky/compositor/texture_layer.h"
|
|
|
|
#include "base/trace_event/trace_event.h"
|
|
#include "services/sky/compositor/layer_host.h"
|
|
#include "services/sky/compositor/rasterizer.h"
|
|
#include "sky/engine/wtf/RefPtr.h"
|
|
#include "third_party/skia/include/core/SkCanvas.h"
|
|
#include "third_party/skia/include/core/SkPicture.h"
|
|
#include "third_party/skia/include/core/SkPictureRecorder.h"
|
|
|
|
namespace sky {
|
|
|
|
TextureLayer::TextureLayer(LayerClient* client) : client_(client) {
|
|
}
|
|
|
|
TextureLayer::~TextureLayer() {
|
|
}
|
|
|
|
void TextureLayer::SetSize(const gfx::Size& size) {
|
|
size_ = size;
|
|
}
|
|
|
|
void TextureLayer::Display() {
|
|
TRACE_EVENT0("sky", "Layer::Display");
|
|
DCHECK(rasterizer_);
|
|
RefPtr<SkPicture> picture = RecordPicture();
|
|
texture_ = rasterizer_->Rasterize(picture.get());
|
|
}
|
|
|
|
PassRefPtr<SkPicture> TextureLayer::RecordPicture() {
|
|
TRACE_EVENT0("sky", "Layer::RecordPicture");
|
|
|
|
SkRTreeFactory factory;
|
|
SkPictureRecorder recorder;
|
|
|
|
SkCanvas* canvas = recorder.beginRecording(
|
|
size_.width(), size_.height(), &factory,
|
|
SkPictureRecorder::kComputeSaveLayerInfo_RecordFlag);
|
|
|
|
client_->PaintContents(canvas, gfx::Rect(size_));
|
|
return adoptRef(recorder.endRecordingAsPicture());
|
|
}
|
|
|
|
bool TextureLayer::HaveTexture() const {
|
|
return texture_;
|
|
}
|
|
|
|
scoped_ptr<mojo::GLTexture> TextureLayer::GetTexture() {
|
|
return texture_.Pass();
|
|
}
|
|
|
|
} // namespace sky
|