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/*
* Copyright (C) 2011 Google 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 COMPUTER, INC. ``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 COMPUTER, INC. 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 "core/html/canvas/OESVertexArrayObject.h"
#include "bindings/v8/ExceptionState.h"
#include "core/html/canvas/WebGLRenderingContextBase.h"
#include "core/html/canvas/WebGLVertexArrayObjectOES.h"
namespace WebCore {
OESVertexArrayObject::OESVertexArrayObject(WebGLRenderingContextBase* context)
: WebGLExtension(context)
{
ScriptWrappable::init(this);
context->extensionsUtil()->ensureExtensionEnabled("GL_OES_vertex_array_object");
}
OESVertexArrayObject::~OESVertexArrayObject()
{
}
WebGLExtensionName OESVertexArrayObject::name() const
{
return OESVertexArrayObjectName;
}
PassRefPtr<OESVertexArrayObject> OESVertexArrayObject::create(WebGLRenderingContextBase* context)
{
return adoptRef(new OESVertexArrayObject(context));
}
PassRefPtr<WebGLVertexArrayObjectOES> OESVertexArrayObject::createVertexArrayOES()
{
if (isLost())
return nullptr;
RefPtr<WebGLVertexArrayObjectOES> o = WebGLVertexArrayObjectOES::create(m_context, WebGLVertexArrayObjectOES::VaoTypeUser);
m_context->addContextObject(o.get());
return o.release();
}
void OESVertexArrayObject::deleteVertexArrayOES(WebGLVertexArrayObjectOES* arrayObject)
{
if (!arrayObject || isLost())
return;
if (!arrayObject->isDefaultObject() && arrayObject == m_context->m_boundVertexArrayObject)
m_context->setBoundVertexArrayObject(nullptr);
arrayObject->deleteObject(m_context->webContext());
}
GLboolean OESVertexArrayObject::isVertexArrayOES(WebGLVertexArrayObjectOES* arrayObject)
{
if (!arrayObject || isLost())
return 0;
if (!arrayObject->hasEverBeenBound())
return 0;
return m_context->webContext()->isVertexArrayOES(arrayObject->object());
}
void OESVertexArrayObject::bindVertexArrayOES(WebGLVertexArrayObjectOES* arrayObject)
{
if (isLost())
return;
if (arrayObject && (arrayObject->isDeleted() || !arrayObject->validate(0, context()))) {
m_context->webContext()->synthesizeGLError(GL_INVALID_OPERATION);
return;
}
if (arrayObject && !arrayObject->isDefaultObject() && arrayObject->object()) {
m_context->webContext()->bindVertexArrayOES(arrayObject->object());
arrayObject->setHasEverBeenBound();
m_context->setBoundVertexArrayObject(arrayObject);
} else {
m_context->webContext()->bindVertexArrayOES(0);
m_context->setBoundVertexArrayObject(nullptr);
}
}
bool OESVertexArrayObject::supported(WebGLRenderingContextBase* context)
{
return context->extensionsUtil()->supportsExtension("GL_OES_vertex_array_object");
}
const char* OESVertexArrayObject::extensionName()
{
return "OES_vertex_array_object";
}
} // namespace WebCore
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