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// Copyright 2012 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.
#ifndef CC_LAYERS_HEADS_UP_DISPLAY_LAYER_IMPL_H_
#define CC_LAYERS_HEADS_UP_DISPLAY_LAYER_IMPL_H_
#include <memory>
#include <string>
#include <vector>
#include "base/memory/ptr_util.h"
#include "base/time/time.h"
#include "cc/cc_export.h"
#include "cc/layers/layer_impl.h"
#include "cc/resources/memory_history.h"
#include "cc/resources/resource_pool.h"
#include "cc/trees/debug_rect_history.h"
#include "third_party/skia/include/core/SkRefCnt.h"
class SkTypeface;
struct SkRect;
namespace viz {
class ClientResourceProvider;
}
namespace cc {
class FrameRateCounter;
class LayerTreeFrameSink;
class PaintCanvas;
class PaintFlags;
enum class TextAlign { kLeft, kCenter, kRight };
class CC_EXPORT HeadsUpDisplayLayerImpl : public LayerImpl {
public:
static std::unique_ptr<HeadsUpDisplayLayerImpl> Create(
LayerTreeImpl* tree_impl,
int id) {
return base::WrapUnique(new HeadsUpDisplayLayerImpl(tree_impl, id));
}
HeadsUpDisplayLayerImpl(const HeadsUpDisplayLayerImpl&) = delete;
~HeadsUpDisplayLayerImpl() override;
HeadsUpDisplayLayerImpl& operator=(const HeadsUpDisplayLayerImpl&) = delete;
std::unique_ptr<LayerImpl> CreateLayerImpl(LayerTreeImpl* tree_impl) override;
bool WillDraw(DrawMode draw_mode,
viz::ClientResourceProvider* resource_provider) override;
void AppendQuads(viz::RenderPass* render_pass,
AppendQuadsData* append_quads_data) override;
void UpdateHudTexture(DrawMode draw_mode,
LayerTreeFrameSink* frame_sink,
viz::ClientResourceProvider* resource_provider,
bool gpu_raster,
const viz::RenderPassList& list);
void ReleaseResources() override;
gfx::Rect GetEnclosingRectInTargetSpace() const override;
bool IsAnimatingHUDContents() const {
return paint_rects_fade_step_ > 0 || layout_shift_rects_fade_step_ > 0;
}
void SetHUDTypeface(sk_sp<SkTypeface> typeface);
void SetLayoutShiftRects(const std::vector<gfx::Rect>& rects);
const std::vector<gfx::Rect>& LayoutShiftRects() const;
// This evicts hud quad appended during render pass preparation.
void EvictHudQuad(const viz::RenderPassList& list);
// LayerImpl overrides.
void PushPropertiesTo(LayerImpl* layer) override;
private:
class Graph {
public:
Graph(double indicator_value, double start_upper_bound);
// Eases the upper bound, which limits what is currently visible in the
// graph, so that the graph always scales to either it's max or
// default_upper_bound.
double UpdateUpperBound();
double value;
double min;
double max;
double current_upper_bound;
const double default_upper_bound;
const double indicator;
};
HeadsUpDisplayLayerImpl(LayerTreeImpl* tree_impl, int id);
const char* LayerTypeAsString() const override;
void AsValueInto(base::trace_event::TracedValue* dict) const override;
void UpdateHudContents();
void DrawHudContents(PaintCanvas* canvas);
void DrawText(PaintCanvas* canvas,
const PaintFlags& flags,
const std::string& text,
TextAlign align,
int size,
int x,
int y) const;
void DrawText(PaintCanvas* canvas,
const PaintFlags& flags,
const std::string& text,
TextAlign align,
int size,
const SkPoint& pos) const;
void DrawGraphBackground(PaintCanvas* canvas,
PaintFlags* flags,
const SkRect& bounds) const;
void DrawGraphLines(PaintCanvas* canvas,
PaintFlags* flags,
const SkRect& bounds,
const Graph& graph) const;
SkRect DrawFPSDisplay(PaintCanvas* canvas,
const FrameRateCounter* fps_counter,
int right,
int top) const;
SkRect DrawMemoryDisplay(PaintCanvas* canvas,
int top,
int right,
int width) const;
SkRect DrawGpuRasterizationStatus(PaintCanvas* canvas,
int right,
int top,
int width) const;
void DrawDebugRect(PaintCanvas* canvas,
PaintFlags* flags,
const DebugRect& rect,
SkColor stroke_color,
SkColor fill_color,
float stroke_width,
const std::string& label_text) const;
void DrawDebugRects(PaintCanvas* canvas,
DebugRectHistory* debug_rect_history);
ResourcePool::InUsePoolResource in_flight_resource_;
std::unique_ptr<ResourcePool> pool_;
viz::DrawQuad* current_quad_ = nullptr;
// Used for software raster when it will be uploaded to a texture.
sk_sp<SkSurface> staging_surface_;
sk_sp<SkTypeface> typeface_;
std::vector<gfx::Rect> layout_shift_rects_;
float internal_contents_scale_;
gfx::Size internal_content_bounds_;
Graph fps_graph_;
Graph paint_time_graph_;
MemoryHistory::Entry memory_entry_;
int paint_rects_fade_step_ = 0;
int layout_shift_rects_fade_step_ = 0;
std::vector<DebugRect> paint_rects_;
std::vector<DebugRect> layout_shift_debug_rects_;
base::TimeTicks time_of_last_graph_update_;
};
} // namespace cc
#endif // CC_LAYERS_HEADS_UP_DISPLAY_LAYER_IMPL_H_
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