Line data    Source code

       1             : /* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
       2             :  * This Source Code Form is subject to the terms of the Mozilla Public
       3             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       4             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
       5             : 
       6             : #include "mozilla/gfx/Point.h"          // for IntSize, Point
       7             : #include "mozilla/gfx/Rect.h"           // for Rect
       8             : #include "mozilla/gfx/Types.h"          // for Color, SurfaceFormat
       9             : #include "mozilla/layers/Compositor.h"  // for Compositor
      10             : #include "mozilla/layers/CompositorTypes.h"
      11             : #include "mozilla/layers/Effects.h"     // for Effect, EffectChain, etc
      12             : #include "mozilla/TimeStamp.h"          // for TimeStamp, TimeDuration
      13             : #include "mozilla/Sprintf.h"
      14             : 
      15             : #include "mozilla/gfx/HelpersSkia.h"
      16             : #include "PaintCounter.h"
      17             : 
      18             : namespace mozilla {
      19             : namespace layers {
      20             : 
      21             : using namespace mozilla::gfx;
      22             : 
      23             : // Positioned below the chrome UI
      24           3 : IntRect PaintCounter::mRect = IntRect(0, 175, 300, 60);
      25             : 
      26           0 : PaintCounter::PaintCounter()
      27             : {
      28           0 :   mFormat = SurfaceFormat::B8G8R8A8;
      29           0 :   mSurface = Factory::CreateDataSourceSurface(mRect.Size(), mFormat);
      30           0 :   mStride = mSurface->Stride();
      31             : 
      32             :   mCanvas =
      33           0 :     SkCanvas::MakeRasterDirect(MakeSkiaImageInfo(mRect.Size(), mFormat),
      34           0 :                               mSurface->GetData(), mStride);
      35           0 :   mCanvas->clear(SK_ColorWHITE);
      36           0 : }
      37             : 
      38           0 : PaintCounter::~PaintCounter()
      39             : {
      40           0 :   mSurface = nullptr;
      41           0 :   mTextureSource = nullptr;
      42           0 :   mTexturedEffect = nullptr;
      43           0 : }
      44             : 
      45             : void
      46           0 : PaintCounter::Draw(Compositor* aCompositor, TimeDuration aPaintTime, TimeDuration aCompositeTime) {
      47             :   char buffer[48];
      48           0 :   SprintfLiteral(buffer, "P: %.2f  C: %.2f",
      49             :                  aPaintTime.ToMilliseconds(),
      50           0 :                  aCompositeTime.ToMilliseconds());
      51             : 
      52           0 :   SkPaint paint;
      53           0 :   paint.setTextSize(32);
      54           0 :   paint.setColor(SkColorSetRGB(0, 255, 0));
      55           0 :   paint.setAntiAlias(true);
      56             : 
      57           0 :   mCanvas->clear(SK_ColorTRANSPARENT);
      58           0 :   mCanvas->drawText(buffer, strlen(buffer), 10, 30, paint);
      59           0 :   mCanvas->flush();
      60             : 
      61           0 :   if (!mTextureSource) {
      62           0 :     mTextureSource = aCompositor->CreateDataTextureSource();
      63           0 :     mTexturedEffect = CreateTexturedEffect(mFormat, mTextureSource,
      64           0 :                                            SamplingFilter::POINT, true);
      65           0 :     mTexturedEffect->mTextureCoords = Rect(0, 0, 1.0f, 1.0f);
      66             :   }
      67             : 
      68           0 :   mTextureSource->Update(mSurface);
      69             : 
      70           0 :   EffectChain effectChain;
      71           0 :   effectChain.mPrimaryEffect = mTexturedEffect;
      72             : 
      73           0 :   gfx::Matrix4x4 identity;
      74           0 :   Rect rect(mRect.x, mRect.y, mRect.width, mRect.height);
      75           0 :   aCompositor->DrawQuad(rect, mRect, effectChain, 1.0, identity);
      76           0 : }
      77             : 
      78             : } // end namespace layers
      79             : } // end namespace mozilla