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// d3d12-fence.cpp
#include "d3d12-fence.h"
#include "d3d12-device.h"
namespace gfx
{
namespace d3d12
{
using namespace Slang;
FenceImpl::~FenceImpl()
{
if (m_waitEvent)
CloseHandle(m_waitEvent);
}
HANDLE FenceImpl::getWaitEvent()
{
if (m_waitEvent)
return m_waitEvent;
m_waitEvent = CreateEventEx(nullptr, nullptr, 0, EVENT_ALL_ACCESS);
return m_waitEvent;
}
Result FenceImpl::init(DeviceImpl* device, const IFence::Desc& desc)
{
SLANG_RETURN_ON_FAIL(device->m_device->CreateFence(
desc.initialValue,
desc.isShared ? D3D12_FENCE_FLAG_SHARED : D3D12_FENCE_FLAG_NONE,
IID_PPV_ARGS(m_fence.writeRef())));
return SLANG_OK;
}
Result FenceImpl::getCurrentValue(uint64_t* outValue)
{
*outValue = m_fence->GetCompletedValue();
return SLANG_OK;
}
Result FenceImpl::setCurrentValue(uint64_t value)
{
SLANG_RETURN_ON_FAIL(m_fence->Signal(value));
return SLANG_OK;
}
Result FenceImpl::getSharedHandle(InteropHandle* outHandle)
{
#if !SLANG_WINDOWS_FAMILY
return SLANG_E_NOT_IMPLEMENTED;
#else
// Check if a shared handle already exists.
if (sharedHandle.handleValue != 0)
{
*outHandle = sharedHandle;
return SLANG_OK;
}
ComPtr<ID3D12Device> devicePtr;
m_fence->GetDevice(IID_PPV_ARGS(devicePtr.writeRef()));
SLANG_RETURN_ON_FAIL(devicePtr->CreateSharedHandle(
m_fence,
NULL,
GENERIC_ALL,
nullptr,
(HANDLE*)&outHandle->handleValue));
outHandle->api = InteropHandleAPI::D3D12;
sharedHandle = *outHandle;
return SLANG_OK;
#endif
}
Result FenceImpl::getNativeHandle(InteropHandle* outNativeHandle)
{
outNativeHandle->api = gfx::InteropHandleAPI::D3D12;
outNativeHandle->handleValue = (uint64_t)m_fence.get();
return SLANG_OK;
}
} // namespace d3d12
} // namespace gfx
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