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/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "mozilla/gfx/Point.h" // for IntSize, Point
#include "mozilla/gfx/Rect.h" // for Rect
#include "mozilla/gfx/Types.h" // for Color, SurfaceFormat
#include "mozilla/layers/Compositor.h" // for Compositor
#include "mozilla/layers/CompositorTypes.h"
#include "mozilla/layers/Effects.h" // for Effect, EffectChain, etc
#include "mozilla/TimeStamp.h" // for TimeStamp, TimeDuration
#include "mozilla/Sprintf.h"
#include "mozilla/gfx/HelpersSkia.h"
#include "PaintCounter.h"
namespace mozilla {
namespace layers {
using namespace mozilla::gfx;
// Positioned below the chrome UI
IntRect PaintCounter::mRect = IntRect(0, 175, 300, 60);
PaintCounter::PaintCounter()
{
mFormat = SurfaceFormat::B8G8R8A8;
mSurface = Factory::CreateDataSourceSurface(mRect.Size(), mFormat);
mStride = mSurface->Stride();
mCanvas.reset(
SkCanvas::NewRasterDirect(MakeSkiaImageInfo(mRect.Size(), mFormat),
mSurface->GetData(), mStride));
mCanvas->clear(SK_ColorWHITE);
}
PaintCounter::~PaintCounter()
{
mSurface = nullptr;
mTextureSource = nullptr;
mTexturedEffect = nullptr;
}
void
PaintCounter::Draw(Compositor* aCompositor, TimeDuration aPaintTime, TimeDuration aCompositeTime) {
char buffer[48];
SprintfLiteral(buffer, "P: %.2f C: %.2f",
aPaintTime.ToMilliseconds(),
aCompositeTime.ToMilliseconds());
SkPaint paint;
paint.setTextSize(32);
paint.setColor(SkColorSetRGB(0, 255, 0));
paint.setAntiAlias(true);
mCanvas->clear(SK_ColorTRANSPARENT);
mCanvas->drawText(buffer, strlen(buffer), 10, 30, paint);
mCanvas->flush();
if (!mTextureSource) {
mTextureSource = aCompositor->CreateDataTextureSource();
mTexturedEffect = CreateTexturedEffect(mFormat, mTextureSource,
SamplingFilter::POINT, true);
mTexturedEffect->mTextureCoords = Rect(0, 0, 1.0f, 1.0f);
}
mTextureSource->Update(mSurface);
EffectChain effectChain;
effectChain.mPrimaryEffect = mTexturedEffect;
gfx::Matrix4x4 identity;
Rect rect(mRect.x, mRect.y, mRect.width, mRect.height);
aCompositor->DrawQuad(rect, mRect, effectChain, 1.0, identity);
}
} // end namespace layers
} // end namespace mozilla
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