cc/render_surface.cc


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39

// Copyright 2010 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "config.h"

#include "cc/render_surface.h"

#include "cc/layer.h"
#include "cc/math_util.h"
#include <public/WebTransformationMatrix.h>

using WebKit::WebTransformationMatrix;

namespace cc {

RenderSurface::RenderSurface(Layer* owningLayer)
    : m_owningLayer(owningLayer)
    , m_drawOpacity(1)
    , m_drawOpacityIsAnimating(false)
    , m_targetSurfaceTransformsAreAnimating(false)
    , m_screenSpaceTransformsAreAnimating(false)
    , m_nearestAncestorThatMovesPixels(0)
{
}

RenderSurface::~RenderSurface()
{
}

gfx::RectF RenderSurface::drawableContentRect() const
{
    gfx::RectF drawableContentRect = MathUtil::mapClippedRect(m_drawTransform, m_contentRect);
    if (m_owningLayer->hasReplica())
        drawableContentRect.Union(MathUtil::mapClippedRect(m_replicaDrawTransform, m_contentRect));
    return drawableContentRect;
}

}