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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 "CCIOSurfaceLayerImpl.h" | |
| 10 | |
| 11 #include "base/stringprintf.h" | |
| 12 #include "CCGraphicsContext.h" | |
| 13 #include "CCIOSurfaceDrawQuad.h" | |
| 14 #include "CCLayerTreeHostImpl.h" | |
| 15 #include "CCQuadSink.h" | |
| 16 #include "CCRendererGL.h" // For the GLC() macro. | |
| 17 #include "Extensions3D.h" | |
| 18 #include <public/WebGraphicsContext3D.h> | |
| 19 | |
| 20 namespace cc { | |
| 21 | |
| 22 CCIOSurfaceLayerImpl::CCIOSurfaceLayerImpl(int id) | |
| 23 : CCLayerImpl(id) | |
| 24 , m_ioSurfaceId(0) | |
| 25 , m_ioSurfaceChanged(false) | |
| 26 , m_ioSurfaceTextureId(0) | |
| 27 { | |
| 28 } | |
| 29 | |
| 30 CCIOSurfaceLayerImpl::~CCIOSurfaceLayerImpl() | |
| 31 { | |
| 32 if (!m_ioSurfaceTextureId) | |
| 33 return; | |
| 34 | |
| 35 CCGraphicsContext* context = layerTreeHostImpl()->context(); | |
| 36 // FIXME: Implement this path for software compositing. | |
| 37 WebKit::WebGraphicsContext3D* context3d = context->context3D(); | |
| 38 if (context3d) | |
| 39 context3d->deleteTexture(m_ioSurfaceTextureId); | |
| 40 } | |
| 41 | |
| 42 void CCIOSurfaceLayerImpl::willDraw(CCResourceProvider* resourceProvider) | |
| 43 { | |
| 44 CCLayerImpl::willDraw(resourceProvider); | |
| 45 | |
| 46 if (m_ioSurfaceChanged) { | |
| 47 WebKit::WebGraphicsContext3D* context3d = resourceProvider->graphicsCont
ext3D(); | |
| 48 if (!context3d) { | |
| 49 // FIXME: Implement this path for software compositing. | |
| 50 return; | |
| 51 } | |
| 52 | |
| 53 // FIXME: Do this in a way that we can track memory usage. | |
| 54 if (!m_ioSurfaceTextureId) | |
| 55 m_ioSurfaceTextureId = context3d->createTexture(); | |
| 56 | |
| 57 GLC(context3d, context3d->activeTexture(GraphicsContext3D::TEXTURE0)); | |
| 58 GLC(context3d, context3d->bindTexture(Extensions3D::TEXTURE_RECTANGLE_AR
B, m_ioSurfaceTextureId)); | |
| 59 GLC(context3d, context3d->texParameteri(Extensions3D::TEXTURE_RECTANGLE_
ARB, GraphicsContext3D::TEXTURE_MIN_FILTER, GraphicsContext3D::LINEAR)); | |
| 60 GLC(context3d, context3d->texParameteri(Extensions3D::TEXTURE_RECTANGLE_
ARB, GraphicsContext3D::TEXTURE_MAG_FILTER, GraphicsContext3D::LINEAR)); | |
| 61 GLC(context3d, context3d->texParameteri(Extensions3D::TEXTURE_RECTANGLE_
ARB, GraphicsContext3D::TEXTURE_WRAP_S, GraphicsContext3D::CLAMP_TO_EDGE)); | |
| 62 GLC(context3d, context3d->texParameteri(Extensions3D::TEXTURE_RECTANGLE_
ARB, GraphicsContext3D::TEXTURE_WRAP_T, GraphicsContext3D::CLAMP_TO_EDGE)); | |
| 63 context3d->texImageIOSurface2DCHROMIUM(Extensions3D::TEXTURE_RECTANGLE_A
RB, | |
| 64 m_ioSurfaceSize.width(), | |
| 65 m_ioSurfaceSize.height(), | |
| 66 m_ioSurfaceId, | |
| 67 0); | |
| 68 // Do not check for error conditions. texImageIOSurface2DCHROMIUM is sup
posed to hold on to | |
| 69 // the last good IOSurface if the new one is already closed. This is onl
y a possibility | |
| 70 // during live resizing of plugins. However, it seems that this is not s
ufficient to | |
| 71 // completely guard against garbage being drawn. If this is found to be
a significant issue, | |
| 72 // it may be necessary to explicitly tell the embedder when to free the
surfaces it has | |
| 73 // allocated. | |
| 74 m_ioSurfaceChanged = false; | |
| 75 } | |
| 76 } | |
| 77 | |
| 78 void CCIOSurfaceLayerImpl::appendQuads(CCQuadSink& quadSink, CCAppendQuadsData&
appendQuadsData) | |
| 79 { | |
| 80 CCSharedQuadState* sharedQuadState = quadSink.useSharedQuadState(createShare
dQuadState()); | |
| 81 appendDebugBorderQuad(quadSink, sharedQuadState, appendQuadsData); | |
| 82 | |
| 83 IntRect quadRect(IntPoint(), contentBounds()); | |
| 84 quadSink.append(CCIOSurfaceDrawQuad::create(sharedQuadState, quadRect, m_ioS
urfaceSize, m_ioSurfaceTextureId, CCIOSurfaceDrawQuad::Flipped).PassAs<CCDrawQua
d>(), appendQuadsData); | |
| 85 } | |
| 86 | |
| 87 void CCIOSurfaceLayerImpl::dumpLayerProperties(std::string* str, int indent) con
st | |
| 88 { | |
| 89 str->append(indentString(indent)); | |
| 90 base::StringAppendF(str, "iosurface id: %u texture id: %u\n", m_ioSurfaceId,
m_ioSurfaceTextureId); | |
| 91 CCLayerImpl::dumpLayerProperties(str, indent); | |
| 92 } | |
| 93 | |
| 94 void CCIOSurfaceLayerImpl::didLoseContext() | |
| 95 { | |
| 96 // We don't have a valid texture ID in the new context; however, | |
| 97 // the IOSurface is still valid. | |
| 98 m_ioSurfaceTextureId = 0; | |
| 99 m_ioSurfaceChanged = true; | |
| 100 } | |
| 101 | |
| 102 void CCIOSurfaceLayerImpl::setIOSurfaceProperties(unsigned ioSurfaceId, const In
tSize& size) | |
| 103 { | |
| 104 if (m_ioSurfaceId != ioSurfaceId) | |
| 105 m_ioSurfaceChanged = true; | |
| 106 | |
| 107 m_ioSurfaceId = ioSurfaceId; | |
| 108 m_ioSurfaceSize = size; | |
| 109 } | |
| 110 | |
| 111 const char* CCIOSurfaceLayerImpl::layerTypeAsString() const | |
| 112 { | |
| 113 return "IOSurfaceLayer"; | |
| 114 } | |
| 115 | |
| 116 } | |
| 117 | |
| 118 #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