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