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80 lines
2.9 KiB
C++
80 lines
2.9 KiB
C++
/*
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* Copyright (c) 2013, Google Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following disclaimer
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* in the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Google Inc. nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "config.h"
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#include "platform/graphics/gpu/WebGLImageBufferSurface.h"
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#include "platform/graphics/skia/GaneshUtils.h"
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#include "public/platform/Platform.h"
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#include "public/platform/WebGraphicsContext3DProvider.h"
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#include "third_party/skia/include/core/SkPixelRef.h"
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#include "wtf/PassOwnPtr.h"
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namespace blink {
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WebGLImageBufferSurface::WebGLImageBufferSurface(const IntSize& size, OpacityMode opacityMode)
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: ImageBufferSurface(size, opacityMode)
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{
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m_contextProvider = adoptPtr(Platform::current()->createSharedOffscreenGraphicsContext3DProvider());
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if (!m_contextProvider)
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return;
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GrContext* gr = m_contextProvider->grContext();
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if (!gr)
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return;
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ensureTextureBackedSkBitmap(gr, m_bitmap, size, kDefault_GrSurfaceOrigin, kRGBA_8888_GrPixelConfig);
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}
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WebGLImageBufferSurface::~WebGLImageBufferSurface()
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{
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}
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Platform3DObject WebGLImageBufferSurface::getBackingTexture() const
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{
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GrTexture* texture = m_bitmap.getTexture();
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if (!texture)
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return 0;
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return texture->getTextureHandle();
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}
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void WebGLImageBufferSurface::invalidateCachedBitmap()
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{
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m_cachedBitmap.reset();
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}
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void WebGLImageBufferSurface::updateCachedBitmapIfNeeded()
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{
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if (m_cachedBitmap.isNull() && m_bitmap.pixelRef()) {
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(m_bitmap.pixelRef())->readPixels(&m_cachedBitmap);
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}
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}
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} // namespace blink
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