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1 // Copyright 2012 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 #include "config.h" | |
6 | |
7 #if USE(ACCELERATED_COMPOSITING) | |
8 | |
9 #include "CCSolidColorLayerImpl.h" | |
10 | |
11 #include "CCQuadSink.h" | |
12 #include "CCSolidColorDrawQuad.h" | |
13 #include <wtf/MathExtras.h> | |
14 | |
15 using namespace std; | |
16 using WebKit::WebTransformationMatrix; | |
17 | |
18 namespace cc { | |
19 | |
20 CCSolidColorLayerImpl::CCSolidColorLayerImpl(int id) | |
21 : CCLayerImpl(id) | |
22 , m_tileSize(256) | |
23 { | |
24 } | |
25 | |
26 CCSolidColorLayerImpl::~CCSolidColorLayerImpl() | |
27 { | |
28 } | |
29 | |
30 void CCSolidColorLayerImpl::appendQuads(CCQuadSink& quadSink, CCAppendQuadsData&
appendQuadsData) | |
31 { | |
32 CCSharedQuadState* sharedQuadState = quadSink.useSharedQuadState(createShare
dQuadState()); | |
33 appendDebugBorderQuad(quadSink, sharedQuadState, appendQuadsData); | |
34 | |
35 // We create a series of smaller quads instead of just one large one so that
the | |
36 // culler can reduce the total pixels drawn. | |
37 int width = contentBounds().width(); | |
38 int height = contentBounds().height(); | |
39 for (int x = 0; x < width; x += m_tileSize) { | |
40 for (int y = 0; y < height; y += m_tileSize) { | |
41 IntRect solidTileRect(x, y, min(width - x, m_tileSize), min(height -
y, m_tileSize)); | |
42 quadSink.append(CCSolidColorDrawQuad::create(sharedQuadState, solidT
ileRect, backgroundColor()).PassAs<CCDrawQuad>(), appendQuadsData); | |
43 } | |
44 } | |
45 } | |
46 | |
47 const char* CCSolidColorLayerImpl::layerTypeAsString() const | |
48 { | |
49 return "SolidColorLayer"; | |
50 } | |
51 | |
52 } // namespace cc | |
53 #endif // USE(ACCELERATED_COMPOSITING) | |
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