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//
// Copyright (c) 2002-2013 The ANGLE Project Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
//
// Fence.cpp: Implements the gl::FenceNV and gl::FenceSync classes, which support the GL_NV_fence
// extension and GLES3 sync objects.
#include "libGLESv2/Fence.h"
#include "libGLESv2/renderer/FenceImpl.h"
#include "libGLESv2/renderer/Renderer.h"
#include "libGLESv2/main.h"
#include "common/utilities.h"
#include "angle_gl.h"
namespace gl
{
FenceNV::FenceNV(rx::FenceNVImpl *impl)
: mFence(impl),
mIsSet(false),
mStatus(GL_FALSE),
mCondition(GL_NONE)
{
}
FenceNV::~FenceNV()
{
SafeDelete(mFence);
}
GLboolean FenceNV::isFence() const
{
// GL_NV_fence spec:
// A name returned by GenFencesNV, but not yet set via SetFenceNV, is not the name of an existing fence.
return (mIsSet ? GL_TRUE : GL_FALSE);
}
Error FenceNV::setFence(GLenum condition)
{
Error error = mFence->set();
if (error.isError())
{
return error;
}
mCondition = condition;
mStatus = GL_FALSE;
mIsSet = true;
return Error(GL_NO_ERROR);
}
Error FenceNV::testFence(GLboolean *outResult)
{
// Flush the command buffer by default
Error error = mFence->test(true, &mStatus);
if (error.isError())
{
return error;
}
*outResult = mStatus;
return Error(GL_NO_ERROR);
}
Error FenceNV::finishFence()
{
ASSERT(mIsSet);
return mFence->finishFence(&mStatus);
}
FenceSync::FenceSync(rx::FenceSyncImpl *impl, GLuint id)
: RefCountObject(id),
mFence(impl),
mCondition(GL_NONE)
{
}
FenceSync::~FenceSync()
{
SafeDelete(mFence);
}
Error FenceSync::set(GLenum condition)
{
Error error = mFence->set();
if (error.isError())
{
return error;
}
mCondition = condition;
return Error(GL_NO_ERROR);
}
Error FenceSync::clientWait(GLbitfield flags, GLuint64 timeout, GLenum *outResult)
{
ASSERT(mCondition != GL_NONE);
return mFence->clientWait(flags, timeout, outResult);
}
Error FenceSync::serverWait(GLbitfield flags, GLuint64 timeout)
{
return mFence->serverWait(flags, timeout);
}
Error FenceSync::getStatus(GLint *outResult) const
{
return mFence->getStatus(outResult);
}
}
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