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/*
* Copyright (C) 2011 Apple Inc. All rights reserved.
*
* 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 APPLE INC. AND ITS 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 APPLE INC. OR ITS 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.
*/
#import "config.h"
#import "CoreAnimationRenderer.h"
#import <WebKitSystemInterface.h>
#import <QuartzCore/QuartzCore.h>
#import <OpenGL/CGLMacro.h>
// The CGLMacro.h header adds an implicit CGLContextObj parameter to all OpenGL calls,
// which is good because it allows us to make OpenGL calls without saving and restoring the
// current context. The context argument is named "cgl_ctx" by default, so we use the macro
// below to declare this variable.
#define DECLARE_GL_CONTEXT_VARIABLE(name) \
CGLContextObj cgl_ctx = (name)
namespace WebKit {
PassRefPtr<CoreAnimationRenderer> CoreAnimationRenderer::create(Client* client, CGLContextObj cglContextObj, CALayer *layer)
{
return adoptRef(new CoreAnimationRenderer(client, cglContextObj, layer));
}
CoreAnimationRenderer::CoreAnimationRenderer(Client* client, CGLContextObj cglContextObj, CALayer *layer)
: m_client(client)
, m_cglContext(cglContextObj)
, m_renderer([CARenderer rendererWithCGLContext:m_cglContext options:nil])
{
[m_renderer.get() setLayer:layer];
WKCARendererAddChangeNotificationObserver(m_renderer.get(), rendererDidChange, this);
}
CoreAnimationRenderer::~CoreAnimationRenderer()
{
ASSERT(!m_client);
}
void CoreAnimationRenderer::setBounds(CGRect bounds)
{
[m_renderer.get() setBounds:bounds];
[CATransaction begin];
[CATransaction setDisableActions:YES];
[[m_renderer.get() layer] setFrame:bounds];
[CATransaction commit];
}
void CoreAnimationRenderer::render(CFTimeInterval frameTime, CVTimeStamp* timeStamp, CFTimeInterval& nextFrameTime)
{
[m_renderer.get() beginFrameAtTime:frameTime timeStamp:timeStamp];
[m_renderer.get() render];
nextFrameTime = [m_renderer.get() nextFrameTime];
[m_renderer.get() endFrame];
}
void CoreAnimationRenderer::invalidate()
{
ASSERT(m_client);
WKCARendererRemoveChangeNotificationObserver(m_renderer.get(), rendererDidChange, this);
m_client = 0;
}
void CoreAnimationRenderer::rendererDidChange(void* context)
{
static_cast<CoreAnimationRenderer*>(context)->rendererDidChange();
}
void CoreAnimationRenderer::rendererDidChange()
{
ASSERT(m_client);
m_client->rendererDidChange(this);
}
} // namespace WebKit
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