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https://github.com/flutter/flutter.git
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08dabe9601
Cleans up header order/grouping for consistency: associated header, C/C++ system/standard library headers, library headers, platform-specific #includes. Adds <cstring> where strlen, memcpy are being used: there are a bunch of places we use them transitively. Applies linter-required cleanups. Disables linter on one file due to included RapidJson header. See https://github.com/flutter/flutter/issues/65676 This patch does not cover flutter/shell/platform/darwin. There's a separate, slightly more intensive cleanup for those in progress.
103 lines
3.4 KiB
C++
103 lines
3.4 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/performance_overlay_layer.h"
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#include <iomanip>
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#include <iostream>
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#include <string>
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#include "third_party/skia/include/core/SkFont.h"
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#include "third_party/skia/include/core/SkTextBlob.h"
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namespace flutter {
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namespace {
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void VisualizeStopWatch(SkCanvas* canvas,
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const Stopwatch& stopwatch,
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SkScalar x,
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SkScalar y,
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SkScalar width,
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SkScalar height,
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bool show_graph,
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bool show_labels,
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const std::string& label_prefix,
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const std::string& font_path) {
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const int label_x = 8; // distance from x
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const int label_y = -10; // distance from y+height
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if (show_graph) {
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SkRect visualization_rect = SkRect::MakeXYWH(x, y, width, height);
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stopwatch.Visualize(canvas, visualization_rect);
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}
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if (show_labels) {
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auto text = PerformanceOverlayLayer::MakeStatisticsText(
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stopwatch, label_prefix, font_path);
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SkPaint paint;
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paint.setColor(SK_ColorGRAY);
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canvas->drawTextBlob(text, x + label_x, y + height + label_y, paint);
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}
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}
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} // namespace
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sk_sp<SkTextBlob> PerformanceOverlayLayer::MakeStatisticsText(
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const Stopwatch& stopwatch,
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const std::string& label_prefix,
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const std::string& font_path) {
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SkFont font;
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if (font_path != "") {
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font = SkFont(SkTypeface::MakeFromFile(font_path.c_str()));
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}
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font.setSize(15);
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double max_ms_per_frame = stopwatch.MaxDelta().ToMillisecondsF();
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double average_ms_per_frame = stopwatch.AverageDelta().ToMillisecondsF();
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std::stringstream stream;
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stream.setf(std::ios::fixed | std::ios::showpoint);
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stream << std::setprecision(1);
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stream << label_prefix << " "
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<< "max " << max_ms_per_frame << " ms/frame, "
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<< "avg " << average_ms_per_frame << " ms/frame";
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auto text = stream.str();
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return SkTextBlob::MakeFromText(text.c_str(), text.size(), font,
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SkTextEncoding::kUTF8);
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}
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PerformanceOverlayLayer::PerformanceOverlayLayer(uint64_t options,
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const char* font_path)
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: options_(options) {
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if (font_path != nullptr) {
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font_path_ = font_path;
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}
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}
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void PerformanceOverlayLayer::Paint(PaintContext& context) const {
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const int padding = 8;
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if (!options_) {
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return;
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}
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TRACE_EVENT0("flutter", "PerformanceOverlayLayer::Paint");
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SkScalar x = paint_bounds().x() + padding;
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SkScalar y = paint_bounds().y() + padding;
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SkScalar width = paint_bounds().width() - (padding * 2);
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SkScalar height = paint_bounds().height() / 2;
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SkAutoCanvasRestore save(context.leaf_nodes_canvas, true);
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VisualizeStopWatch(
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context.leaf_nodes_canvas, context.raster_time, x, y, width,
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height - padding, options_ & kVisualizeRasterizerStatistics,
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options_ & kDisplayRasterizerStatistics, "Raster", font_path_);
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VisualizeStopWatch(context.leaf_nodes_canvas, context.ui_time, x, y + height,
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width, height - padding,
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options_ & kVisualizeEngineStatistics,
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options_ & kDisplayEngineStatistics, "UI", font_path_);
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}
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} // namespace flutter
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