1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
3 /* This Source Code Form is subject to the terms of the Mozilla Public
4 * License, v. 2.0. If a copy of the MPL was not distributed with this
5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
6
7 #include "mozilla/gfx/Point.h" // for IntSize, Point
8 #include "mozilla/gfx/Rect.h" // for Rect
9 #include "mozilla/gfx/Types.h" // for Color, SurfaceFormat
10 #include "mozilla/layers/Compositor.h" // for Compositor
11 #include "mozilla/layers/CompositorTypes.h"
12 #include "mozilla/layers/Effects.h" // for Effect, EffectChain, etc
13 #include "mozilla/TimeStamp.h" // for TimeStamp, TimeDuration
14 #include "mozilla/Sprintf.h"
15
16 #include "mozilla/gfx/HelpersSkia.h"
17 #include "skia/include/core/SkFont.h"
18 #include "PaintCounter.h"
19
20 namespace mozilla {
21 namespace layers {
22
23 using namespace mozilla::gfx;
24
25 // Positioned below the chrome UI
26 IntRect PaintCounter::mRect = IntRect(0, 175, 300, 60);
27
PaintCounter()28 PaintCounter::PaintCounter() {
29 mFormat = SurfaceFormat::B8G8R8A8;
30 mSurface = Factory::CreateDataSourceSurface(mRect.Size(), mFormat);
31 mMap.emplace(mSurface, DataSourceSurface::READ_WRITE);
32 mStride = mMap->GetStride();
33
34 mCanvas = SkCanvas::MakeRasterDirect(MakeSkiaImageInfo(mRect.Size(), mFormat),
35 mMap->GetData(), mStride);
36 mCanvas->clear(SK_ColorWHITE);
37 }
38
~PaintCounter()39 PaintCounter::~PaintCounter() {
40 mSurface = nullptr;
41 mTextureSource = nullptr;
42 mTexturedEffect = nullptr;
43 }
44
Draw(Compositor * aCompositor,TimeDuration aPaintTime,TimeDuration aCompositeTime)45 void PaintCounter::Draw(Compositor* aCompositor, TimeDuration aPaintTime,
46 TimeDuration aCompositeTime) {
47 char buffer[48];
48 SprintfLiteral(buffer, "P: %.2f C: %.2f", aPaintTime.ToMilliseconds(),
49 aCompositeTime.ToMilliseconds());
50
51 SkPaint paint;
52 paint.setColor(SkColorSetRGB(0, 255, 0));
53 paint.setAntiAlias(true);
54
55 SkFont font(SkTypeface::MakeDefault(), 32);
56
57 mCanvas->clear(SK_ColorTRANSPARENT);
58 mCanvas->drawString(buffer, 10, 30, font, paint);
59 mCanvas->flush();
60
61 if (!mTextureSource) {
62 mTextureSource = aCompositor->CreateDataTextureSource();
63 mTexturedEffect = CreateTexturedEffect(mFormat, mTextureSource,
64 SamplingFilter::POINT, true);
65 mTexturedEffect->mTextureCoords = Rect(0, 0, 1.0f, 1.0f);
66 }
67
68 mTextureSource->Update(mSurface);
69
70 EffectChain effectChain;
71 effectChain.mPrimaryEffect = mTexturedEffect;
72
73 gfx::Matrix4x4 identity;
74 Rect rect(mRect.X(), mRect.Y(), mRect.Width(), mRect.Height());
75 aCompositor->DrawQuad(rect, mRect, effectChain, 1.0, identity);
76 }
77
78 } // end namespace layers
79 } // end namespace mozilla
80