Source/platform/graphics/OpaqueRectTrackingContentLayerDelegate.cpp - Issue 554183004: Add an alternate paintContents method to WebContentLayerClient.

Side by Side Diff: Source/platform/graphics/OpaqueRectTrackingContentLayerDelegate.cpp

Issue 554183004: Add an alternate paintContents method to WebContentLayerClient. (Closed) Base URL: svn://svn.chromium.org/blink/trunk

Patch Set: opaquerecttracking: . Created 6 years, 3 months ago

Use n/p to move between diff chunks; N/P to move between comments. Draft comments are only viewable by you.

Jump to:

View unified diff | Download patch | Annotate | Revision Log

« no previous file with comments | « Source/platform/graphics/OpaqueRectTrackingContentLayerDelegate.h ('k') | Source/platform/graphics/OpaqueRectTrackingContentLayerDelegateTest.cpp » ('j') | no next file with comments »
Toggle Intra-line Diffs ('i') | Expand Comments ('e') | Collapse Comments ('c') | Hide Comments ('s')

OLD	NEW
	(Empty)
1 /*

2 * Copyright (C) 2012 Google Inc. All rights reserved.

3 *

4 * Redistribution and use in source and binary forms, with or without

5 * modification, are permitted provided that the following conditions

6 * are met:

7 * 1. Redistributions of source code must retain the above copyright

8 * notice, this list of conditions and the following disclaimer.

9 * 2. Redistributions in binary form must reproduce the above copyright

10 * notice, this list of conditions and the following disclaimer in the

11 * documentation and/or other materials provided with the distribution.

12 *

13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND AN Y

14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED

15 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE

16 * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR AN Y

17 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES

18 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;

19 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND O N

20 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS

22 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

23 */

24

25 #include "config.h"

26

27 #include "platform/graphics/OpaqueRectTrackingContentLayerDelegate.h"

28

29 #include "platform/EventTracer.h"

30 #include "platform/geometry/IntRect.h"

31 #include "platform/graphics/GraphicsContext.h"

32 #include "platform/transforms/AffineTransform.h"

33 #include "public/platform/WebFloatRect.h"

34 #include "public/platform/WebRect.h"

35

36 namespace blink {

37

38 OpaqueRectTrackingContentLayerDelegate::OpaqueRectTrackingContentLayerDelegate(G raphicsContextPainter* painter)

39 : m_painter(painter)

40 , m_opaque(false)

41 {

42 }

43

44 OpaqueRectTrackingContentLayerDelegate::~OpaqueRectTrackingContentLayerDelegate( )

45 {

46 }

47

48 void OpaqueRectTrackingContentLayerDelegate::paintContents(

49 SkCanvas* canvas, const WebRect& clip, bool canPaintLCDText, WebFloatRect& o paque,

50 WebContentLayerClient::GraphicsContextStatus contextStatus)

51 {

52 static const unsigned char* annotationsEnabled = 0;

53 if (UNLIKELY(!annotationsEnabled))

54 annotationsEnabled = EventTracer::getTraceCategoryEnabledFlag(TRACE_DISA BLED_BY_DEFAULT("blink.graphics_context_annotations"));

55

56 GraphicsContext context(canvas,

57 contextStatus == WebContentLayerClient::GraphicsContextEnabled ? Graphic sContext::NothingDisabled : GraphicsContext::FullyDisabled);

58 context.setRegionTrackingMode(m_opaque ? GraphicsContext::RegionTrackingDisa bled : GraphicsContext::RegionTrackingOpaque);

59 context.setCertainlyOpaque(m_opaque);

60 context.setShouldSmoothFonts(canPaintLCDText);

61

62 if (*annotationsEnabled)

63 context.setAnnotationMode(AnnotateAll);

64

65 // Record transform prior to painting, as all opaque tracking will be

66 // relative to this current value.

67 AffineTransform canvasToContentTransform = context.getCTM().inverse();

68

69 m_painter->paint(context, clip);

70

71 // Transform tracked opaque paints back to our layer's content space.

72 ASSERT(canvasToContentTransform.isInvertible());

73 ASSERT(canvasToContentTransform.preservesAxisAlignment());

74 opaque = canvasToContentTransform.mapRect(context.opaqueRegion().asRect());

75 }

76

77 } // namespace blink

OLD	NEW