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/*
Copyright (C) 2012 Samsung Electronics
Copyright (C) 2012 Intel Corporation.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#include "config.h"
#include "GraphicsContext3DPrivate.h"
#if USE(3D_GRAPHICS) || USE(ACCELERATED_COMPOSITING)
#include "HostWindow.h"
#include "NotImplemented.h"
#include "PlatformContextCairo.h"
#if USE(OPENGL_ES_2)
#include <GLES2/gl2.h>
#include <GLES2/gl2ext.h>
#else
#include "OpenGLShims.h"
#endif
namespace WebCore {
GraphicsContext3DPrivate::GraphicsContext3DPrivate(GraphicsContext3D* context, HostWindow* hostWindow, GraphicsContext3D::RenderStyle renderStyle)
: m_context(context)
, m_hostWindow(hostWindow)
, m_pendingSurfaceResize(false)
{
if (m_hostWindow && m_hostWindow->platformPageClient()) {
// FIXME: Implement this code path for WebKit1.
// Get Evas object from platformPageClient and set EvasGL related members.
return;
}
m_platformContext = GLPlatformContext::createContext(renderStyle);
if (!m_platformContext)
return;
if (renderStyle == GraphicsContext3D::RenderOffscreen) {
#if USE(GRAPHICS_SURFACE)
m_platformSurface = GLPlatformSurface::createTransportSurface();
#else
m_platformSurface = GLPlatformSurface::createOffscreenSurface();
#endif
if (!m_platformSurface) {
m_platformContext = nullptr;
return;
}
if (!m_platformContext->initialize(m_platformSurface.get()) || !m_platformContext->makeCurrent(m_platformSurface.get())) {
releaseResources();
m_platformContext = nullptr;
m_platformSurface = nullptr;
#if USE(GRAPHICS_SURFACE)
} else
m_surfaceHandle = GraphicsSurfaceToken(m_platformSurface->handle());
#else
}
#endif
}
}
GraphicsContext3DPrivate::~GraphicsContext3DPrivate()
{
}
void GraphicsContext3DPrivate::releaseResources()
{
// Release the current context and drawable only after destroying any associated gl resources.
if (m_platformContext)
m_platformContext->destroy();
if (m_platformSurface)
m_platformSurface->destroy();
if (m_platformContext)
m_platformContext->releaseCurrent();
}
bool GraphicsContext3DPrivate::createSurface(PageClientEfl*, bool)
{
notImplemented();
return false;
}
void GraphicsContext3DPrivate::setContextLostCallback(PassOwnPtr<GraphicsContext3D::ContextLostCallback> callBack)
{
m_contextLostCallback = callBack;
}
PlatformGraphicsContext3D GraphicsContext3DPrivate::platformGraphicsContext3D() const
{
return m_platformContext->handle();
}
bool GraphicsContext3DPrivate::makeContextCurrent()
{
bool success = m_platformContext->makeCurrent(m_platformSurface.get());
if (!m_platformContext->isValid()) {
// FIXME: Restore context
if (m_contextLostCallback)
m_contextLostCallback->onContextLost();
success = false;
}
return success;
}
#if USE(TEXTURE_MAPPER_GL)
void GraphicsContext3DPrivate::paintToTextureMapper(TextureMapper*, const FloatRect& /* target */, const TransformationMatrix&, float /* opacity */, BitmapTexture* /* mask */)
{
notImplemented();
}
#endif
#if USE(GRAPHICS_SURFACE)
void GraphicsContext3DPrivate::createGraphicsSurfaces(const IntSize&)
{
m_pendingSurfaceResize = true;
}
uint32_t GraphicsContext3DPrivate::copyToGraphicsSurface()
{
if (!m_platformContext || !makeContextCurrent())
return 0;
m_context->markLayerComposited();
if (m_pendingSurfaceResize) {
m_pendingSurfaceResize = false;
m_platformSurface->setGeometry(IntRect(0, 0, m_context->m_currentWidth, m_context->m_currentHeight));
}
if (m_context->m_attrs.antialias) {
#if !USE(OPENGL_ES_2)
glBindFramebuffer(GL_READ_FRAMEBUFFER_EXT, m_context->m_multisampleFBO);
glBindFramebuffer(GL_DRAW_FRAMEBUFFER_EXT, m_context->m_fbo);
glBlitFramebuffer(0, 0, m_context->m_currentWidth, m_context->m_currentHeight, 0, 0, m_context->m_currentWidth, m_context->m_currentHeight, GL_COLOR_BUFFER_BIT, GL_LINEAR);
#endif
}
m_platformSurface->updateContents(m_context->m_texture, IntRect(0, 0, m_context->m_currentWidth, m_context->m_currentHeight), m_context->m_boundFBO);
return 0;
}
GraphicsSurfaceToken GraphicsContext3DPrivate::graphicsSurfaceToken() const
{
return m_surfaceHandle;
}
#endif
} // namespace WebCore
#endif // USE(3D_GRAPHICS) || USE(ACCELERATED_COMPOSITING)
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