Files
UnrealEngine/Engine/Source/ThirdParty/MaterialX/MaterialX-1.38.10/source/MaterialXRenderHw/WindowWrapper.cpp
2025-05-18 13:04:45 +08:00

121 lines
2.7 KiB
C++

//
// Copyright Contributors to the MaterialX Project
// SPDX-License-Identifier: Apache-2.0
//
#include <MaterialXRenderHw/WindowWrapper.h>
#if defined(__linux__) || defined(__FreeBSD__)
#include <X11/Intrinsic.h>
#elif defined(__APPLE__)
#include <MaterialXRenderHw/WindowCocoaWrappers.h>
#endif
MATERIALX_NAMESPACE_BEGIN
#if defined(_WIN32)
WindowWrapper::WindowWrapper(ExternalWindowHandle externalHandle,
InternalWindowHandle internalHandle,
DisplayHandle /*display*/)
{
_externalHandle = externalHandle;
if (_externalHandle && !internalHandle)
{
// Cache a HDC that corresponds to the window handle.
_internalHandle = GetDC(_externalHandle);
}
else
{
_internalHandle = internalHandle;
}
}
WindowWrapper::~WindowWrapper()
{
release();
}
void WindowWrapper::release()
{
if (_externalHandle)
{
// Release acquired DC
ReleaseDC(_externalHandle, _internalHandle);
}
_externalHandle = 0;
_internalHandle = 0;
}
#elif defined(__linux__) || defined(__FreeBSD__)
WindowWrapper::WindowWrapper(ExternalWindowHandle externalHandle,
InternalWindowHandle internalHandle,
DisplayHandle display)
{
_xDisplay = display;
_framebufferWindow = 0;
_externalHandle = externalHandle;
// Cache a pointer to the window.
if (internalHandle)
_internalHandle = internalHandle;
else
_internalHandle = XtWindow(externalHandle);
}
WindowWrapper::~WindowWrapper()
{
release();
}
void WindowWrapper::release()
{
// No explicit release calls are required.
_externalHandle = 0;
_internalHandle = 0;
_framebufferWindow = 0;
_xDisplay = 0;
}
#elif defined(__APPLE__)
WindowWrapper::WindowWrapper(ExternalWindowHandle externalHandle,
InternalWindowHandle internalHandle,
DisplayHandle display)
{
_externalHandle = externalHandle;
#ifndef TARGET_OS_IOS
// Cache a pointer to the window.
_internalHandle = NSUtilGetView(externalHandle);
#else
_internalHandle = nullptr;
#endif
}
WindowWrapper::~WindowWrapper()
{
release();
}
void WindowWrapper::release()
{
// No explicit release calls are required.
_externalHandle = 0;
_internalHandle = 0;
}
#endif
//
// Creator
//
WindowWrapperPtr WindowWrapper::create(ExternalWindowHandle externalHandle,
InternalWindowHandle internalHandle,
DisplayHandle display)
{
return std::shared_ptr<WindowWrapper>(new WindowWrapper(externalHandle, internalHandle, display));
}
MATERIALX_NAMESPACE_END