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66 lines
2.1 KiB
C++
66 lines
2.1 KiB
C++
// Copyright 2013 The Flutter Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "flutter/flow/layers/picture_layer.h"
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#include "flutter/fml/logging.h"
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namespace flutter {
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PictureLayer::PictureLayer(const SkPoint& offset,
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SkiaGPUObject<SkPicture> picture,
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bool is_complex,
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bool will_change)
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: offset_(offset),
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picture_(std::move(picture)),
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is_complex_(is_complex),
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will_change_(will_change) {}
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void PictureLayer::Preroll(PrerollContext* context, const SkMatrix& matrix) {
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TRACE_EVENT0("flutter", "PictureLayer::Preroll");
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#if defined(LEGACY_FUCHSIA_EMBEDDER)
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CheckForChildLayerBelow(context);
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#endif
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SkPicture* sk_picture = picture();
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if (auto* cache = context->raster_cache) {
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TRACE_EVENT0("flutter", "PictureLayer::RasterCache (Preroll)");
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SkMatrix ctm = matrix;
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ctm.preTranslate(offset_.x(), offset_.y());
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#ifndef SUPPORT_FRACTIONAL_TRANSLATION
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ctm = RasterCache::GetIntegralTransCTM(ctm);
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#endif
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cache->Prepare(context->gr_context, sk_picture, ctm,
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context->dst_color_space, is_complex_, will_change_);
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}
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SkRect bounds = sk_picture->cullRect().makeOffset(offset_.x(), offset_.y());
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set_paint_bounds(bounds);
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}
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void PictureLayer::Paint(PaintContext& context) const {
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TRACE_EVENT0("flutter", "PictureLayer::Paint");
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FML_DCHECK(picture_.get());
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FML_DCHECK(needs_painting(context));
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SkAutoCanvasRestore save(context.leaf_nodes_canvas, true);
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context.leaf_nodes_canvas->translate(offset_.x(), offset_.y());
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#ifndef SUPPORT_FRACTIONAL_TRANSLATION
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context.leaf_nodes_canvas->setMatrix(RasterCache::GetIntegralTransCTM(
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context.leaf_nodes_canvas->getTotalMatrix()));
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#endif
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if (context.raster_cache &&
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context.raster_cache->Draw(*picture(), *context.leaf_nodes_canvas)) {
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TRACE_EVENT_INSTANT0("flutter", "raster cache hit");
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return;
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}
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picture()->playback(context.leaf_nodes_canvas);
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}
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} // namespace flutter
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