6eb6bb6017
Ding, dong... BUG=154451 Review URL: https://chromiumcodereview.appspot.com/11410021 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@167071 0039d316-1c4b-4281-b951-d872f2087c98
79 lines
2.3 KiB
C++
79 lines
2.3 KiB
C++
// Copyright 2011 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "cc/texture_layer_impl.h"
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#include "base/stringprintf.h"
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#include "cc/quad_sink.h"
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#include "cc/renderer.h"
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#include "cc/texture_draw_quad.h"
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namespace cc {
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TextureLayerImpl::TextureLayerImpl(int id)
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: LayerImpl(id)
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, m_textureId(0)
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, m_externalTextureResource(0)
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, m_premultipliedAlpha(true)
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, m_flipped(true)
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, m_uvRect(0, 0, 1, 1)
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{
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}
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TextureLayerImpl::~TextureLayerImpl()
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{
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}
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void TextureLayerImpl::willDraw(ResourceProvider* resourceProvider)
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{
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if (!m_textureId)
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return;
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DCHECK(!m_externalTextureResource);
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m_externalTextureResource = resourceProvider->createResourceFromExternalTexture(m_textureId);
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}
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void TextureLayerImpl::appendQuads(QuadSink& quadSink, AppendQuadsData& appendQuadsData)
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{
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if (!m_externalTextureResource)
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return;
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SharedQuadState* sharedQuadState = quadSink.useSharedQuadState(createSharedQuadState());
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appendDebugBorderQuad(quadSink, sharedQuadState, appendQuadsData);
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gfx::Rect quadRect(gfx::Point(), contentBounds());
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quadSink.append(TextureDrawQuad::create(sharedQuadState, quadRect, m_externalTextureResource, m_premultipliedAlpha, m_uvRect, m_flipped).PassAs<DrawQuad>(), appendQuadsData);
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}
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void TextureLayerImpl::didDraw(ResourceProvider* resourceProvider)
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{
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if (!m_externalTextureResource)
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return;
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// FIXME: the following assert will not be true when sending resources to a
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// parent compositor. A synchronization scheme (double-buffering or
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// pipelining of updates) for the client will need to exist to solve this.
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DCHECK(!resourceProvider->inUseByConsumer(m_externalTextureResource));
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resourceProvider->deleteResource(m_externalTextureResource);
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m_externalTextureResource = 0;
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}
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void TextureLayerImpl::dumpLayerProperties(std::string* str, int indent) const
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{
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str->append(indentString(indent));
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base::StringAppendF(str, "texture layer texture id: %u premultiplied: %d\n", m_textureId, m_premultipliedAlpha);
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LayerImpl::dumpLayerProperties(str, indent);
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}
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void TextureLayerImpl::didLoseContext()
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{
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m_textureId = 0;
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m_externalTextureResource = 0;
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}
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const char* TextureLayerImpl::layerTypeAsString() const
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{
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return "TextureLayer";
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}
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} // namespace cc
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