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/*
* Copyright (C) 2018 Metrological Group B.V.
* Copyright (C) 2018 Igalia S.L.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "NicosiaGCGLLayer.h"
#if ENABLE(WEBGL) && USE(NICOSIA) && USE(TEXTURE_MAPPER) && !USE(ANGLE)
#if USE(COORDINATED_GRAPHICS)
#include "TextureMapperGL.h"
#include "TextureMapperPlatformLayerBuffer.h"
#include "TextureMapperPlatformLayerProxyGL.h"
#endif
#include "GLContext.h"
namespace Nicosia {
using namespace WebCore;
std::unique_ptr<GCGLLayer> GCGLLayer::create(WebCore::GraphicsContextGLOpenGL& context)
{
if (auto glContext = GLContext::createOffscreenContext(&PlatformDisplay::sharedDisplayForCompositing()))
return makeUnique<GCGLLayer>(context, WTFMove(glContext));
return nullptr;
}
GCGLLayer::GCGLLayer(GraphicsContextGLOpenGL& context, std::unique_ptr<WebCore::GLContext>&& glContext)
: m_context(context)
, m_glContext(WTFMove(glContext))
, m_contentLayer(Nicosia::ContentLayer::create(Nicosia::ContentLayerTextureMapperImpl::createFactory(*this)))
{
}
GCGLLayer::~GCGLLayer()
{
downcast<ContentLayerTextureMapperImpl>(m_contentLayer->impl()).invalidateClient();
}
bool GCGLLayer::makeContextCurrent()
{
ASSERT(m_glContext);
return m_glContext->makeContextCurrent();
}
GCGLContext GCGLLayer::platformContext() const
{
ASSERT(m_glContext);
return m_glContext->platformContext();
}
void GCGLLayer::swapBuffersIfNeeded()
{
#if USE(COORDINATED_GRAPHICS)
if (m_context.layerComposited())
return;
m_context.prepareTexture();
IntSize textureSize(m_context.m_currentWidth, m_context.m_currentHeight);
TextureMapperGL::Flags flags = TextureMapperGL::ShouldFlipTexture;
if (m_context.contextAttributes().alpha)
flags |= TextureMapperGL::ShouldBlend;
{
auto& proxy = downcast<Nicosia::ContentLayerTextureMapperImpl>(m_contentLayer->impl()).proxy();
Locker locker { proxy.lock() };
ASSERT(is<TextureMapperPlatformLayerProxyGL>(proxy));
downcast<TextureMapperPlatformLayerProxyGL>(proxy).pushNextBuffer(makeUnique<TextureMapperPlatformLayerBuffer>(m_context.m_compositorTexture, textureSize, flags, m_context.m_internalColorFormat));
}
m_context.markLayerComposited();
#endif
}
} // namespace Nicosia
#endif // ENABLE(WEBGL) && USE(NICOSIA) && USE(TEXTURE_MAPPER)
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