blob: 08c09cc9e833b8b1d4d996575e46790c0390a1ea [file] [log] [blame]
// Copyright 2013 The Flutter 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 "flutter/flow/layers/picture_layer.h"
#include "flutter/fml/logging.h"
namespace flutter {
PictureLayer::PictureLayer(const SkPoint& offset,
SkiaGPUObject<SkPicture> picture,
bool is_complex,
bool will_change)
: offset_(offset),
picture_(std::move(picture)),
is_complex_(is_complex),
will_change_(will_change) {}
void PictureLayer::Preroll(PrerollContext* context, const SkMatrix& matrix) {
TRACE_EVENT0("flutter", "PictureLayer::Preroll");
SkPicture* sk_picture = picture();
if (auto* cache = context->raster_cache) {
TRACE_EVENT0("flutter", "PictureLayer::RasterCache (Preroll)");
SkMatrix ctm = matrix;
ctm.postTranslate(offset_.x(), offset_.y());
#ifndef SUPPORT_FRACTIONAL_TRANSLATION
ctm = RasterCache::GetIntegralTransCTM(ctm);
#endif
cache->Prepare(context->gr_context, sk_picture, ctm,
context->dst_color_space, is_complex_, will_change_);
}
SkRect bounds = sk_picture->cullRect().makeOffset(offset_.x(), offset_.y());
set_paint_bounds(bounds);
}
void PictureLayer::Paint(PaintContext& context) const {
TRACE_EVENT0("flutter", "PictureLayer::Paint");
FML_DCHECK(picture_.get());
FML_DCHECK(needs_painting());
SkAutoCanvasRestore save(context.leaf_nodes_canvas, true);
context.leaf_nodes_canvas->translate(offset_.x(), offset_.y());
#ifndef SUPPORT_FRACTIONAL_TRANSLATION
context.leaf_nodes_canvas->setMatrix(RasterCache::GetIntegralTransCTM(
context.leaf_nodes_canvas->getTotalMatrix()));
#endif
if (context.raster_cache) {
const SkMatrix& ctm = context.leaf_nodes_canvas->getTotalMatrix();
RasterCacheResult result = context.raster_cache->Get(*picture(), ctm);
if (result.is_valid()) {
TRACE_EVENT_INSTANT0("flutter", "raster cache hit");
result.draw(*context.leaf_nodes_canvas);
return;
}
}
picture()->playback(context.leaf_nodes_canvas);
}
} // namespace flutter