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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 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 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"
#if ENABLE(WEBGL)
#include "OESVertexArrayObject.h"
#include <wtf/Lock.h>
#include <wtf/Locker.h>
#include <wtf/TZoneMallocInlines.h>
namespace WebCore {
WTF_MAKE_TZONE_OR_ISO_ALLOCATED_IMPL(OESVertexArrayObject);
OESVertexArrayObject::OESVertexArrayObject(WebGLRenderingContext& context)
: WebGLExtension(context, WebGLExtensionName::OESVertexArrayObject)
{
context.protectedGraphicsContextGL()->ensureExtensionEnabled("GL_OES_vertex_array_object"_s);
}
OESVertexArrayObject::~OESVertexArrayObject() = default;
bool OESVertexArrayObject::supported(GraphicsContextGL& context)
{
return context.supportsExtension("GL_OES_vertex_array_object"_s);
}
RefPtr<WebGLVertexArrayObjectOES> OESVertexArrayObject::createVertexArrayOES()
{
if (isContextLost())
return nullptr;
auto& context = this->context();
return WebGLVertexArrayObjectOES::createUser(context);
}
void OESVertexArrayObject::deleteVertexArrayOES(WebGLVertexArrayObjectOES* arrayObject)
{
if (isContextLost())
return;
auto& context = this->context();
Locker locker { context.objectGraphLock() };
if (!arrayObject)
return;
if (!arrayObject->validate(context)) {
context.synthesizeGLError(GraphicsContextGL::INVALID_OPERATION, "delete"_s, "object does not belong to this context"_s);
return;
}
if (arrayObject->isDeleted())
return;
if (!arrayObject->isDefaultObject() && arrayObject == context.m_boundVertexArrayObject)
context.setBoundVertexArrayObject(locker, nullptr);
arrayObject->deleteObject(locker, context.protectedGraphicsContextGL().get());
}
GCGLboolean OESVertexArrayObject::isVertexArrayOES(WebGLVertexArrayObjectOES* arrayObject)
{
if (isContextLost())
return false;
auto& context = this->context();
if (!context.validateIsWebGLObject(arrayObject))
return false;
return context.protectedGraphicsContextGL()->isVertexArray(arrayObject->object());
}
void OESVertexArrayObject::bindVertexArrayOES(WebGLVertexArrayObjectOES* arrayObject)
{
if (isContextLost())
return;
auto& context = this->context();
Locker locker { context.objectGraphLock() };
// Checks for already deleted objects and objects from other contexts.
if (!context.validateNullableWebGLObject("bindVertexArrayOES"_s, arrayObject))
return;
RefPtr contextGL = context.graphicsContextGL();
if (arrayObject && !arrayObject->isDefaultObject() && arrayObject->object()) {
contextGL->bindVertexArray(arrayObject->object());
context.setBoundVertexArrayObject(locker, arrayObject);
} else {
contextGL->bindVertexArray(0);
context.setBoundVertexArrayObject(locker, nullptr);
}
}
} // namespace WebCore
#endif // ENABLE(WEBGL)
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