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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.
#include "cc/heads_up_display_layer_impl.h"
#include "base/stringprintf.h"
#include "base/strings/string_split.h"
#include "cc/debug/debug_colors.h"
#include "cc/debug/debug_rect_history.h"
#include "cc/debug/frame_rate_counter.h"
#include "cc/debug/paint_time_counter.h"
#include "cc/layer_tree_impl.h"
#include "cc/memory_history.h"
#include "cc/output/renderer.h"
#include "cc/quad_sink.h"
#include "cc/texture_draw_quad.h"
#include "cc/tile_manager.h"
#include "skia/ext/platform_canvas.h"
#include "skia/ext/platform_canvas.h"
#include "third_party/khronos/GLES2/gl2.h"
#include "third_party/khronos/GLES2/gl2ext.h"
#include "third_party/skia/include/core/SkBitmap.h"
#include "third_party/skia/include/core/SkPaint.h"
#include "third_party/skia/include/core/SkTypeface.h"
#include "third_party/skia/include/effects/SkColorMatrixFilter.h"
#include "ui/gfx/point.h"
#include "ui/gfx/size.h"
namespace cc {
static inline SkPaint CreatePaint() {
SkPaint paint;
#if (SK_R32_SHIFT || SK_B32_SHIFT != 16)
// The SkCanvas is in RGBA but the shader is expecting BGRA, so we need to
// swizzle our colors when drawing to the SkCanvas.
SkColorMatrix swizzle_matrix;
for (int i = 0; i < 20; ++i)
swizzle_matrix.fMat[i] = 0;
swizzle_matrix.fMat[0 + 5 * 2] = 1;
swizzle_matrix.fMat[1 + 5 * 1] = 1;
swizzle_matrix.fMat[2 + 5 * 0] = 1;
swizzle_matrix.fMat[3 + 5 * 3] = 1;
skia::RefPtr<SkColorMatrixFilter> filter =
skia::AdoptRef(new SkColorMatrixFilter(swizzle_matrix));
paint.setColorFilter(filter.get());
#endif
return paint;
}
HeadsUpDisplayLayerImpl::Graph::Graph(double indicator_value,
double start_upper_bound)
: value(0.0),
min(0.0),
max(0.0),
current_upper_bound(start_upper_bound),
default_upper_bound(start_upper_bound),
indicator(indicator_value) {}
double HeadsUpDisplayLayerImpl::Graph::UpdateUpperBound() {
double target_upper_bound = std::max(max, default_upper_bound);
current_upper_bound += (target_upper_bound - current_upper_bound) * 0.5;
return current_upper_bound;
}
HeadsUpDisplayLayerImpl::HeadsUpDisplayLayerImpl(LayerTreeImpl* tree_impl,
int id)
: LayerImpl(tree_impl, id),
fps_graph_(60.0, 80.0),
paint_time_graph_(16.0, 48.0),
typeface_(skia::AdoptRef(
SkTypeface::CreateFromName("monospace", SkTypeface::kBold))) {}
HeadsUpDisplayLayerImpl::~HeadsUpDisplayLayerImpl() {}
scoped_ptr<LayerImpl> HeadsUpDisplayLayerImpl::CreateLayerImpl(
LayerTreeImpl* tree_impl) {
return HeadsUpDisplayLayerImpl::Create(tree_impl, id()).PassAs<LayerImpl>();
}
void HeadsUpDisplayLayerImpl::WillDraw(ResourceProvider* resource_provider) {
LayerImpl::WillDraw(resource_provider);
if (!hud_texture_)
hud_texture_ = ScopedResource::create(resource_provider);
// TODO(danakj): Scale the HUD by deviceScale to make it more friendly under
// high DPI.
// TODO(danakj): The HUD could swap between two textures instead of creating a
// texture every frame in ubercompositor.
if (hud_texture_->size() != bounds() ||
resource_provider->InUseByConsumer(hud_texture_->id()))
hud_texture_->Free();
if (!hud_texture_->id()) {
hud_texture_->Allocate(
bounds(), GL_RGBA, ResourceProvider::TextureUsageAny);
// TODO(epenner): This texture was being used before SetPixels was called,
// which is now not allowed (it's an uninitialized read). This should be
// fixed and this allocateForTesting() removed.
// http://crbug.com/166784
resource_provider->AllocateForTesting(hud_texture_->id());
}
}
void HeadsUpDisplayLayerImpl::AppendQuads(QuadSink* quad_sink,
AppendQuadsData* append_quads_data) {
if (!hud_texture_->id())
return;
SharedQuadState* shared_quad_state =
quad_sink->UseSharedQuadState(CreateSharedQuadState());
gfx::Rect quad_rect(gfx::Point(), bounds());
gfx::Rect opaque_rect(contents_opaque() ? quad_rect : gfx::Rect());
bool premultiplied_alpha = true;
gfx::PointF uv_top_left(0.f, 0.f);
gfx::PointF uv_bottom_right(1.f, 1.f);
const float vertex_opacity[] = { 1.f, 1.f, 1.f, 1.f };
bool flipped = false;
scoped_ptr<TextureDrawQuad> quad = TextureDrawQuad::Create();
quad->SetNew(shared_quad_state,
quad_rect,
opaque_rect,
hud_texture_->id(),
premultiplied_alpha,
uv_top_left,
uv_bottom_right,
vertex_opacity,
flipped);
quad_sink->Append(quad.PassAs<DrawQuad>(), append_quads_data);
}
void HeadsUpDisplayLayerImpl::UpdateHudTexture(
ResourceProvider* resource_provider) {
if (!hud_texture_->id())
return;
SkISize canvas_size;
if (hud_canvas_)
canvas_size = hud_canvas_->getDeviceSize();
else
canvas_size.set(0, 0);
if (canvas_size.fWidth != bounds().width() ||
canvas_size.fHeight != bounds().height() || !hud_canvas_) {
bool opaque = false;
hud_canvas_ = make_scoped_ptr(
skia::CreateBitmapCanvas(bounds().width(), bounds().height(), opaque));
}
UpdateHudContents();
hud_canvas_->clear(SkColorSetARGB(0, 0, 0, 0));
DrawHudContents(hud_canvas_.get());
const SkBitmap* bitmap = &hud_canvas_->getDevice()->accessBitmap(false);
SkAutoLockPixels locker(*bitmap);
gfx::Rect layer_rect(bounds());
DCHECK(bitmap->config() == SkBitmap::kARGB_8888_Config);
resource_provider->SetPixels(hud_texture_->id(),
static_cast<const uint8_t*>(bitmap->getPixels()),
layer_rect,
layer_rect,
gfx::Vector2d());
}
void HeadsUpDisplayLayerImpl::DidDraw(ResourceProvider* resource_provider) {
LayerImpl::DidDraw(resource_provider);
if (!hud_texture_->id())
return;
// FIXME: the following assert will not be true when sending resources to a
// parent compositor. We will probably need to hold on to hud_texture_ for
// longer, and have several HUD textures in the pipeline.
DCHECK(!resource_provider->InUseByConsumer(hud_texture_->id()));
}
void HeadsUpDisplayLayerImpl::DidLoseOutputSurface() { hud_texture_.reset(); }
bool HeadsUpDisplayLayerImpl::LayerIsAlwaysDamaged() const { return true; }
void HeadsUpDisplayLayerImpl::UpdateHudContents() {
const LayerTreeDebugState& debug_state = layer_tree_impl()->debug_state();
// Don't update numbers every frame so text is readable.
base::TimeTicks now = layer_tree_impl()->CurrentFrameTime();
if (base::TimeDelta(now - time_of_last_graph_update_).InSecondsF() > 0.25f) {
time_of_last_graph_update_ = now;
if (debug_state.showFPSCounter) {
FrameRateCounter* fps_counter = layer_tree_impl()->frame_rate_counter();
fps_graph_.value = fps_counter->GetAverageFPS();
fps_counter->GetMinAndMaxFPS(&fps_graph_.min, &fps_graph_.max);
}
if (debug_state.continuousPainting) {
PaintTimeCounter* paint_time_counter =
layer_tree_impl()->paint_time_counter();
base::TimeDelta latest, min, max;
if (paint_time_counter->End())
latest = paint_time_counter->End()->total_time();
paint_time_counter->GetMinAndMaxPaintTime(&min, &max);
paint_time_graph_.value = latest.InMillisecondsF();
paint_time_graph_.min = min.InMillisecondsF();
paint_time_graph_.max = max.InMillisecondsF();
}
if (debug_state.showMemoryStats()) {
MemoryHistory* memory_history = layer_tree_impl()->memory_history();
if (memory_history->End())
memory_entry_ = **memory_history->End();
else
memory_entry_ = MemoryHistory::Entry();
}
}
fps_graph_.UpdateUpperBound();
paint_time_graph_.UpdateUpperBound();
}
void HeadsUpDisplayLayerImpl::DrawHudContents(SkCanvas* canvas) const {
const LayerTreeDebugState& debug_state = layer_tree_impl()->debug_state();
if (debug_state.showHudRects())
DrawDebugRects(canvas, layer_tree_impl()->debug_rect_history());
if (debug_state.showPlatformLayerTree)
DrawPlatformLayerTree(canvas);
SkRect area = SkRect::MakeEmpty();
if (debug_state.continuousPainting) {
// Don't show the FPS display when continuous painting is enabled, because
// it would show misleading numbers.
area = DrawPaintTimeDisplay(
canvas, layer_tree_impl()->paint_time_counter(), 0, 0);
} else if (debug_state.showFPSCounter) {
area =
DrawFPSDisplay(canvas, layer_tree_impl()->frame_rate_counter(), 0, 0);
}
if (debug_state.showMemoryStats())
DrawMemoryDisplay(canvas, 0, area.bottom(), SkMaxScalar(area.width(), 150));
}
void HeadsUpDisplayLayerImpl::DrawText(SkCanvas* canvas,
SkPaint* paint,
const std::string& text,
SkPaint::Align align,
int size,
int x,
int y) const {
const bool anti_alias = paint->isAntiAlias();
paint->setAntiAlias(true);
paint->setTextSize(size);
paint->setTextAlign(align);
paint->setTypeface(typeface_.get());
canvas->drawText(text.c_str(), text.length(), x, y, *paint);
paint->setAntiAlias(anti_alias);
}
void HeadsUpDisplayLayerImpl::DrawText(SkCanvas* canvas,
SkPaint* paint,
const std::string& text,
SkPaint::Align align,
int size,
const SkPoint& pos) const {
DrawText(canvas, paint, text, align, size, pos.x(), pos.y());
}
void HeadsUpDisplayLayerImpl::DrawGraphBackground(SkCanvas* canvas,
SkPaint* paint,
const SkRect& bounds) const {
paint->setColor(DebugColors::HUDBackgroundColor());
canvas->drawRect(bounds, *paint);
}
void HeadsUpDisplayLayerImpl::DrawGraphLines(SkCanvas* canvas,
SkPaint* paint,
const SkRect& bounds,
const Graph& graph) const {
// Draw top and bottom line.
paint->setColor(DebugColors::HUDSeparatorLineColor());
canvas->drawLine(bounds.left(),
bounds.top() - 1,
bounds.right(),
bounds.top() - 1,
*paint);
canvas->drawLine(
bounds.left(), bounds.bottom(), bounds.right(), bounds.bottom(), *paint);
// Draw indicator line (additive blend mode to increase contrast when drawn on
// top of graph).
paint->setColor(DebugColors::HUDIndicatorLineColor());
paint->setXfermodeMode(SkXfermode::kPlus_Mode);
const double indicator_top =
bounds.height() * (1.0 - graph.indicator / graph.current_upper_bound) -
1.0;
canvas->drawLine(bounds.left(),
bounds.top() + indicator_top,
bounds.right(),
bounds.top() + indicator_top,
*paint);
paint->setXfermode(NULL);
}
void HeadsUpDisplayLayerImpl::DrawPlatformLayerTree(SkCanvas* canvas) const {
const int kFontHeight = 14;
SkPaint paint = CreatePaint();
DrawGraphBackground(
canvas,
&paint,
SkRect::MakeXYWH(0, 0, bounds().width(), bounds().height()));
std::string layer_tree = layer_tree_impl()->layer_tree_as_text();
std::vector<std::string> lines;
base::SplitString(layer_tree, '\n', &lines);
paint.setColor(DebugColors::PlatformLayerTreeTextColor());
for (size_t i = 0;
i < lines.size() &&
static_cast<int>(2 + i * kFontHeight) < bounds().height();
++i) {
DrawText(canvas,
&paint,
lines[i],
SkPaint::kLeft_Align,
kFontHeight,
2,
2 + (i + 1) * kFontHeight);
}
}
SkRect HeadsUpDisplayLayerImpl::DrawFPSDisplay(
SkCanvas* canvas,
const FrameRateCounter* fps_counter,
int right,
int top) const {
const int kPadding = 4;
const int kGap = 6;
const int kFontHeight = 15;
const int kGraphWidth = fps_counter->time_stamp_history_size() - 2;
const int kGraphHeight = 40;
const int kHistogramWidth = 37;
int width = kGraphWidth + kHistogramWidth + 4 * kPadding;
int height = kFontHeight + kGraphHeight + 4 * kPadding + 2;
int left = bounds().width() - width - right;
SkRect area = SkRect::MakeXYWH(left, top, width, height);
SkPaint paint = CreatePaint();
DrawGraphBackground(canvas, &paint, area);
SkRect text_bounds =
SkRect::MakeXYWH(left + kPadding,
top + kPadding,
kGraphWidth + kHistogramWidth + kGap + 2,
kFontHeight);
SkRect graph_bounds = SkRect::MakeXYWH(left + kPadding,
text_bounds.bottom() + 2 * kPadding,
kGraphWidth,
kGraphHeight);
SkRect histogram_bounds = SkRect::MakeXYWH(graph_bounds.right() + kGap,
graph_bounds.top(),
kHistogramWidth,
kGraphHeight);
const std::string value_text =
base::StringPrintf("FPS:%5.1f", fps_graph_.value);
const std::string min_max_text =
base::StringPrintf("%.0f-%.0f", fps_graph_.min, fps_graph_.max);
paint.setColor(DebugColors::FPSDisplayTextAndGraphColor());
DrawText(canvas,
&paint,
value_text,
SkPaint::kLeft_Align,
kFontHeight,
text_bounds.left(),
text_bounds.bottom());
DrawText(canvas,
&paint,
min_max_text,
SkPaint::kRight_Align,
kFontHeight,
text_bounds.right(),
text_bounds.bottom());
DrawGraphLines(canvas, &paint, graph_bounds, fps_graph_);
// Collect graph and histogram data.
SkPath path;
const int kHistogramSize = 20;
double histogram[kHistogramSize] = { 1.0 };
double max_bucket_value = 1.0;
for (FrameRateCounter::RingBufferType::Iterator it = --fps_counter->end(); it;
--it) {
base::TimeDelta delta = fps_counter->RecentFrameInterval(it.index() + 1);
// Skip this particular instantaneous frame rate if it is not likely to have
// been valid.
if (!fps_counter->IsBadFrameInterval(delta)) {
double fps = 1.0 / delta.InSecondsF();
// Clamp the FPS to the range we want to plot visually.
double p = fps / fps_graph_.current_upper_bound;
if (p > 1.0)
p = 1.0;
// Plot this data point.
SkPoint cur =
SkPoint::Make(graph_bounds.left() + it.index(),
graph_bounds.bottom() - p * graph_bounds.height());
if (path.isEmpty())
path.moveTo(cur);
else
path.lineTo(cur);
// Use the fps value to find the right bucket in the histogram.
int bucket_index = floor(p * (kHistogramSize - 1));
// Add the delta time to take the time spent at that fps rate into
// account.
histogram[bucket_index] += delta.InSecondsF();
max_bucket_value = std::max(histogram[bucket_index], max_bucket_value);
}
}
// Draw FPS histogram.
paint.setColor(DebugColors::HUDSeparatorLineColor());
canvas->drawLine(histogram_bounds.left() - 1,
histogram_bounds.top() - 1,
histogram_bounds.left() - 1,
histogram_bounds.bottom() + 1,
paint);
canvas->drawLine(histogram_bounds.right() + 1,
histogram_bounds.top() - 1,
histogram_bounds.right() + 1,
histogram_bounds.bottom() + 1,
paint);
paint.setColor(DebugColors::FPSDisplayTextAndGraphColor());
const double bar_height = histogram_bounds.height() / kHistogramSize;
for (int i = kHistogramSize - 1; i >= 0; --i) {
if (histogram[i] > 0) {
double bar_width =
histogram[i] / max_bucket_value * histogram_bounds.width();
canvas->drawRect(
SkRect::MakeXYWH(histogram_bounds.left(),
histogram_bounds.bottom() - (i + 1) * bar_height,
bar_width,
1),
paint);
}
}
// Draw FPS graph.
paint.setAntiAlias(true);
paint.setStyle(SkPaint::kStroke_Style);
paint.setStrokeWidth(1);
canvas->drawPath(path, paint);
return area;
}
SkRect HeadsUpDisplayLayerImpl::DrawMemoryDisplay(SkCanvas* canvas,
int right,
int top,
int width) const {
if (!memory_entry_.bytes_total())
return SkRect::MakeEmpty();
const int kPadding = 4;
const int kFontHeight = 13;
const int height = 3 * kFontHeight + 4 * kPadding;
const int left = bounds().width() - width - right;
const SkRect area = SkRect::MakeXYWH(left, top, width, height);
const double megabyte = 1024.0 * 1024.0;
SkPaint paint = CreatePaint();
DrawGraphBackground(canvas, &paint, area);
SkPoint title_pos = SkPoint::Make(left + kPadding, top + kFontHeight);
SkPoint stat1_pos = SkPoint::Make(left + width - kPadding - 1,
top + kPadding + 2 * kFontHeight);
SkPoint stat2_pos = SkPoint::Make(left + width - kPadding - 1,
top + 2 * kPadding + 3 * kFontHeight);
paint.setColor(DebugColors::MemoryDisplayTextColor());
DrawText(canvas,
&paint,
"GPU memory",
SkPaint::kLeft_Align,
kFontHeight,
title_pos);
std::string text =
base::StringPrintf("%6.1f MB used",
(memory_entry_.bytes_unreleasable +
memory_entry_.bytes_allocated) / megabyte);
DrawText(canvas, &paint, text, SkPaint::kRight_Align, kFontHeight, stat1_pos);
if (memory_entry_.bytes_over) {
paint.setColor(SK_ColorRED);
text = base::StringPrintf("%6.1f MB over",
memory_entry_.bytes_over / megabyte);
} else {
text = base::StringPrintf("%6.1f MB max ",
memory_entry_.total_budget_in_bytes / megabyte);
}
DrawText(canvas, &paint, text, SkPaint::kRight_Align, kFontHeight, stat2_pos);
return area;
}
SkRect HeadsUpDisplayLayerImpl::DrawPaintTimeDisplay(
SkCanvas* canvas,
const PaintTimeCounter* paint_time_counter,
int right,
int top) const {
const int kPadding = 4;
const int kFontHeight = 15;
const int kGraphWidth = paint_time_counter->HistorySize();
const int kGraphHeight = 40;
const int width = kGraphWidth + 2 * kPadding;
const int height =
kFontHeight + kGraphHeight + 4 * kPadding + 2 + kFontHeight + kPadding;
const int left = bounds().width() - width - right;
const SkRect area = SkRect::MakeXYWH(left, top, width, height);
SkPaint paint = CreatePaint();
DrawGraphBackground(canvas, &paint, area);
SkRect text_bounds = SkRect::MakeXYWH(
left + kPadding, top + kPadding, kGraphWidth, kFontHeight);
SkRect text_bounds2 = SkRect::MakeXYWH(left + kPadding,
text_bounds.bottom() + kPadding,
kGraphWidth,
kFontHeight);
SkRect graph_bounds = SkRect::MakeXYWH(left + kPadding,
text_bounds2.bottom() + 2 * kPadding,
kGraphWidth,
kGraphHeight);
const std::string value_text =
base::StringPrintf("%.1f", paint_time_graph_.value);
const std::string min_max_text = base::StringPrintf(
"%.1f-%.1f", paint_time_graph_.min, paint_time_graph_.max);
paint.setColor(DebugColors::PaintTimeDisplayTextAndGraphColor());
DrawText(canvas,
&paint,
"Page paint time (ms)",
SkPaint::kLeft_Align,
kFontHeight,
text_bounds.left(),
text_bounds.bottom());
DrawText(canvas,
&paint,
value_text,
SkPaint::kLeft_Align,
kFontHeight,
text_bounds2.left(),
text_bounds2.bottom());
DrawText(canvas,
&paint,
min_max_text,
SkPaint::kRight_Align,
kFontHeight,
text_bounds2.right(),
text_bounds2.bottom());
paint.setColor(DebugColors::PaintTimeDisplayTextAndGraphColor());
for (PaintTimeCounter::RingBufferType::Iterator it =
paint_time_counter->End();
it;
--it) {
double pt = it->total_time().InMillisecondsF();
if (pt == 0.0)
continue;
double p = pt / paint_time_graph_.current_upper_bound;
if (p > 1.0)
p = 1.0;
canvas->drawRect(
SkRect::MakeXYWH(graph_bounds.left() + it.index(),
graph_bounds.bottom() - p * graph_bounds.height(),
1,
p * graph_bounds.height()),
paint);
}
DrawGraphLines(canvas, &paint, graph_bounds, paint_time_graph_);
return area;
}
void HeadsUpDisplayLayerImpl::DrawDebugRects(
SkCanvas* canvas,
DebugRectHistory* debug_rect_history) const {
const std::vector<DebugRect>& debug_rects = debug_rect_history->debug_rects();
float rect_scale = 1.f / layer_tree_impl()->device_scale_factor();
SkPaint paint = CreatePaint();
canvas->save();
canvas->scale(rect_scale, rect_scale);
for (size_t i = 0; i < debug_rects.size(); ++i) {
SkColor stroke_color = 0;
SkColor fill_color = 0;
float stroke_width = 0.f;
switch (debug_rects[i].type) {
case PAINT_RECT_TYPE:
stroke_color = DebugColors::PaintRectBorderColor();
fill_color = DebugColors::PaintRectFillColor();
stroke_width = DebugColors::PaintRectBorderWidth(layer_tree_impl());
break;
case PROPERTY_CHANGED_RECT_TYPE:
stroke_color = DebugColors::PropertyChangedRectBorderColor();
fill_color = DebugColors::PropertyChangedRectFillColor();
stroke_width =
DebugColors::PropertyChangedRectBorderWidth(layer_tree_impl());
break;
case SURFACE_DAMAGE_RECT_TYPE:
stroke_color = DebugColors::SurfaceDamageRectBorderColor();
fill_color = DebugColors::SurfaceDamageRectFillColor();
stroke_width =
DebugColors::SurfaceDamageRectBorderWidth(layer_tree_impl());
break;
case REPLICA_SCREEN_SPACE_RECT_TYPE:
stroke_color = DebugColors::ScreenSpaceSurfaceReplicaRectBorderColor();
fill_color = DebugColors::ScreenSpaceSurfaceReplicaRectFillColor();
stroke_width = DebugColors::ScreenSpaceSurfaceReplicaRectBorderWidth(
layer_tree_impl());
break;
case SCREEN_SPACE_RECT_TYPE:
stroke_color = DebugColors::ScreenSpaceLayerRectBorderColor();
fill_color = DebugColors::ScreenSpaceLayerRectFillColor();
stroke_width =
DebugColors::ScreenSpaceLayerRectBorderWidth(layer_tree_impl());
break;
case OCCLUDING_RECT_TYPE:
stroke_color = DebugColors::OccludingRectBorderColor();
fill_color = DebugColors::OccludingRectFillColor();
stroke_width = DebugColors::OccludingRectBorderWidth(layer_tree_impl());
break;
case NONOCCLUDING_RECT_TYPE:
stroke_color = DebugColors::NonOccludingRectBorderColor();
fill_color = DebugColors::NonOccludingRectFillColor();
stroke_width =
DebugColors::NonOccludingRectBorderWidth(layer_tree_impl());
break;
}
const gfx::RectF& rect = debug_rects[i].rect;
SkRect sk_rect =
SkRect::MakeXYWH(rect.x(), rect.y(), rect.width(), rect.height());
paint.setColor(fill_color);
paint.setStyle(SkPaint::kFill_Style);
canvas->drawRect(sk_rect, paint);
paint.setColor(stroke_color);
paint.setStyle(SkPaint::kStroke_Style);
paint.setStrokeWidth(SkFloatToScalar(stroke_width));
canvas->drawRect(sk_rect, paint);
}
canvas->restore();
}
const char* HeadsUpDisplayLayerImpl::LayerTypeAsString() const {
return "HeadsUpDisplayLayer";
}
} // namespace cc
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