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// vk-fence.cpp
#include "vk-fence.h"
#include "vk-device.h"
#include "vk-util.h"
#if SLANG_WINDOWS_FAMILY
#include <dxgi1_2.h>
#endif
namespace gfx
{
using namespace Slang;
namespace vk
{
FenceImpl::FenceImpl(DeviceImpl* device)
: m_device(device)
{
}
FenceImpl::~FenceImpl()
{
if (m_semaphore)
{
m_device->m_api.vkDestroySemaphore(m_device->m_api.m_device, m_semaphore, nullptr);
}
}
Result FenceImpl::init(const IFence::Desc& desc)
{
if (!m_device->m_api.m_extendedFeatures.vulkan12Features.timelineSemaphore)
return SLANG_E_NOT_AVAILABLE;
VkSemaphoreTypeCreateInfo timelineCreateInfo;
timelineCreateInfo.sType = VK_STRUCTURE_TYPE_SEMAPHORE_TYPE_CREATE_INFO;
timelineCreateInfo.pNext = nullptr;
timelineCreateInfo.semaphoreType = VK_SEMAPHORE_TYPE_TIMELINE;
timelineCreateInfo.initialValue = desc.initialValue;
VkSemaphoreCreateInfo createInfo;
createInfo.sType = VK_STRUCTURE_TYPE_SEMAPHORE_CREATE_INFO;
createInfo.pNext = &timelineCreateInfo;
createInfo.flags = 0;
#if SLANG_WINDOWS_FAMILY
VkExportSemaphoreWin32HandleInfoKHR exportSemaphoreWin32HandleInfoKHR;
#endif
VkExportSemaphoreCreateInfoKHR exportSemaphoreCreateInfo;
if (desc.isShared)
{
#if SLANG_WINDOWS_FAMILY
exportSemaphoreWin32HandleInfoKHR.sType =
VK_STRUCTURE_TYPE_EXPORT_SEMAPHORE_WIN32_HANDLE_INFO_KHR;
exportSemaphoreWin32HandleInfoKHR.pNext = timelineCreateInfo.pNext;
exportSemaphoreWin32HandleInfoKHR.pAttributes = nullptr;
exportSemaphoreWin32HandleInfoKHR.dwAccess = GENERIC_ALL;
exportSemaphoreWin32HandleInfoKHR.name = (LPCWSTR) nullptr;
#endif
exportSemaphoreCreateInfo.sType = VK_STRUCTURE_TYPE_EXPORT_SEMAPHORE_CREATE_INFO_KHR;
#if SLANG_WINDOWS_FAMILY
exportSemaphoreCreateInfo.pNext = &exportSemaphoreWin32HandleInfoKHR;
exportSemaphoreCreateInfo.handleTypes = VK_EXTERNAL_SEMAPHORE_HANDLE_TYPE_OPAQUE_WIN32_BIT;
#else
exportSemaphoreCreateInfo.pNext = timelineCreateInfo.pNext;
exportSemaphoreCreateInfo.handleTypes = VK_EXTERNAL_SEMAPHORE_HANDLE_TYPE_OPAQUE_FD_BIT;
#endif
timelineCreateInfo.pNext = &exportSemaphoreCreateInfo;
}
SLANG_VK_RETURN_ON_FAIL(m_device->m_api.vkCreateSemaphore(
m_device->m_api.m_device,
&createInfo,
nullptr,
&m_semaphore));
return SLANG_OK;
}
Result FenceImpl::getCurrentValue(uint64_t* outValue)
{
SLANG_VK_RETURN_ON_FAIL(m_device->m_api.vkGetSemaphoreCounterValue(
m_device->m_api.m_device,
m_semaphore,
outValue));
return SLANG_OK;
}
Result FenceImpl::setCurrentValue(uint64_t value)
{
uint64_t currentValue = 0;
SLANG_VK_RETURN_ON_FAIL(m_device->m_api.vkGetSemaphoreCounterValue(
m_device->m_api.m_device,
m_semaphore,
¤tValue));
if (currentValue < value)
{
VkSemaphoreSignalInfo signalInfo;
signalInfo.sType = VK_STRUCTURE_TYPE_SEMAPHORE_SIGNAL_INFO;
signalInfo.pNext = nullptr;
signalInfo.semaphore = m_semaphore;
signalInfo.value = value;
SLANG_VK_RETURN_ON_FAIL(
m_device->m_api.vkSignalSemaphore(m_device->m_api.m_device, &signalInfo));
}
return SLANG_OK;
}
Result FenceImpl::getSharedHandle(InteropHandle* outHandle)
{
// Check if a shared handle already exists.
if (sharedHandle.handleValue != 0)
{
*outHandle = sharedHandle;
return SLANG_OK;
}
#if SLANG_WINDOWS_FAMILY
VkSemaphoreGetWin32HandleInfoKHR handleInfo = {
VK_STRUCTURE_TYPE_SEMAPHORE_GET_WIN32_HANDLE_INFO_KHR};
handleInfo.pNext = nullptr;
handleInfo.semaphore = m_semaphore;
handleInfo.handleType = VK_EXTERNAL_SEMAPHORE_HANDLE_TYPE_OPAQUE_WIN32_BIT;
SLANG_VK_RETURN_ON_FAIL(m_device->m_api.vkGetSemaphoreWin32HandleKHR(
m_device->m_api.m_device,
&handleInfo,
(HANDLE*)&sharedHandle.handleValue));
#else
VkSemaphoreGetFdInfoKHR fdInfo = {VK_STRUCTURE_TYPE_SEMAPHORE_GET_FD_INFO_KHR};
fdInfo.pNext = nullptr;
fdInfo.semaphore = m_semaphore;
fdInfo.handleType = VK_EXTERNAL_SEMAPHORE_HANDLE_TYPE_OPAQUE_FD_BIT;
SLANG_VK_RETURN_ON_FAIL(m_device->m_api.vkGetSemaphoreFdKHR(
m_device->m_api.m_device,
&fdInfo,
(int*)&sharedHandle.handleValue));
#endif
sharedHandle.api = InteropHandleAPI::Vulkan;
*outHandle = sharedHandle;
return SLANG_OK;
}
Result FenceImpl::getNativeHandle(InteropHandle* outNativeHandle)
{
outNativeHandle->handleValue = 0;
return SLANG_FAIL;
}
} // namespace vk
} // namespace gfx
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