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| 1 // Copyright 2011 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 | |
| 6 #include "config.h" | |
| 7 | |
| 8 #if USE(ACCELERATED_COMPOSITING) | |
| 9 | |
| 10 #include "CanvasLayerTextureUpdater.h" | |
| 11 | |
| 12 #include "CCRenderingStats.h" | |
| 13 #include "FloatRect.h" | |
| 14 #include "LayerPainterChromium.h" | |
| 15 #include "SkCanvas.h" | |
| 16 #include "SkPaint.h" | |
| 17 #include "SkRect.h" | |
| 18 #include "SkiaUtils.h" | |
| 19 #include "TraceEvent.h" | |
| 20 #include <wtf/CurrentTime.h> | |
| 21 | |
| 22 namespace cc { | |
| 23 | |
| 24 CanvasLayerTextureUpdater::CanvasLayerTextureUpdater(PassOwnPtr<LayerPainterChro
mium> painter) | |
| 25 : m_painter(painter) | |
| 26 { | |
| 27 } | |
| 28 | |
| 29 CanvasLayerTextureUpdater::~CanvasLayerTextureUpdater() | |
| 30 { | |
| 31 } | |
| 32 | |
| 33 void CanvasLayerTextureUpdater::paintContents(SkCanvas* canvas, const IntRect& c
ontentRect, float contentsWidthScale, float contentsHeightScale, IntRect& result
ingOpaqueRect, CCRenderingStats& stats) | |
| 34 { | |
| 35 TRACE_EVENT0("cc", "CanvasLayerTextureUpdater::paintContents"); | |
| 36 canvas->save(); | |
| 37 canvas->translate(CCFloatToSkScalar(-contentRect.x()), CCFloatToSkScalar(-co
ntentRect.y())); | |
| 38 | |
| 39 IntRect layerRect = contentRect; | |
| 40 | |
| 41 if (contentsWidthScale != 1 || contentsHeightScale != 1) { | |
| 42 canvas->scale(CCFloatToSkScalar(contentsWidthScale), CCFloatToSkScalar(c
ontentsHeightScale)); | |
| 43 | |
| 44 FloatRect rect = contentRect; | |
| 45 rect.scale(1 / contentsWidthScale, 1 / contentsHeightScale); | |
| 46 layerRect = enclosingIntRect(rect); | |
| 47 } | |
| 48 | |
| 49 SkPaint paint; | |
| 50 paint.setAntiAlias(false); | |
| 51 paint.setXfermodeMode(SkXfermode::kClear_Mode); | |
| 52 SkRect layerSkRect = SkRect::MakeXYWH(layerRect.x(), layerRect.y(), layerRec
t.width(), layerRect.height()); | |
| 53 canvas->drawRect(layerSkRect, paint); | |
| 54 canvas->clipRect(layerSkRect); | |
| 55 | |
| 56 FloatRect opaqueLayerRect; | |
| 57 double paintBeginTime = monotonicallyIncreasingTime(); | |
| 58 m_painter->paint(canvas, layerRect, opaqueLayerRect); | |
| 59 stats.totalPaintTimeInSeconds += monotonicallyIncreasingTime() - paintBeginT
ime; | |
| 60 canvas->restore(); | |
| 61 | |
| 62 FloatRect opaqueContentRect = opaqueLayerRect; | |
| 63 opaqueContentRect.scale(contentsWidthScale, contentsHeightScale); | |
| 64 resultingOpaqueRect = enclosedIntRect(opaqueContentRect); | |
| 65 | |
| 66 m_contentRect = contentRect; | |
| 67 } | |
| 68 | |
| 69 } // namespace cc | |
| 70 #endif // USE(ACCELERATED_COMPOSITING) | |
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Chromium Code Reviews
Issue 11122003:
[cc] Rename all cc/ filenames to Chromium style (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src