Added KRSurfaceManager

kraken/KRSurfaceManager.cpp

@@ -0,0 +1,95 @@
+//
+//  KRSurfaceManager.cpp
+//  Kraken Engine
+//
+//  Copyright 2021 Kearwood Gilbert. 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 KEARWOOD GILBERT ''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 KEARWOOD GILBERT 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.
+//  
+//  The views and conclusions contained in the software and documentation are those of the
+//  authors and should not be interpreted as representing official policies, either expressed
+//  or implied, of Kearwood Gilbert.
+//
+
+#include "KRSurfaceManager.h"
+
+
+KRSurfaceManager::KRSurfaceManager(KRContext& context)
+  : KRContextObject(context)
+  , m_topSurfaceHandle(0)
+{
+}
+
+KRSurfaceManager::~KRSurfaceManager()
+{
+  destroySurfaces();
+}
+
+void KRSurfaceManager::destroySurfaces()
+{
+  const std::lock_guard<std::mutex> surfaceLock(KRContext::g_SurfaceInfoMutex);
+  m_surfaces.clear();
+}
+
+#ifdef WIN32
+KrResult KRSurfaceManager::create(HWND hWnd, KrSurfaceHandle& surfaceHandle)
+{
+  surfaceHandle = 0;
+
+  std::unique_ptr<KRSurface> surface = std::make_unique<KRSurface>(*m_pContext, hWnd);
+
+  KrResult initialize_result = surface->initialize();
+  if (initialize_result != KR_SUCCESS) {
+    return initialize_result;
+  }
+
+  surfaceHandle = ++m_topSurfaceHandle;
+  m_surfaces.insert(std::pair<KrSurfaceHandle, std::unique_ptr<KRSurface>>(surfaceHandle, std::move(surface)));
+
+  return KR_SUCCESS;
+}
+
+#endif
+
+KrResult KRSurfaceManager::destroy(KrSurfaceHandle& surfaceHandle)
+{
+  auto itr = m_surfaces.find(surfaceHandle);
+  if (itr == m_surfaces.end()) {
+    return KR_ERROR_NOT_FOUND;
+  }
+  m_surfaces.erase(itr);
+  return KR_SUCCESS;
+}
+
+KRSurface& KRSurfaceManager::get(KrSurfaceHandle surfaceHandle)
+{
+  auto itr = m_surfaces.find(surfaceHandle);
+  if (itr == m_surfaces.end()) {
+    assert(false);
+  }
+  return *m_surfaces[surfaceHandle];
+}
+
+
+unordered_map<KrSurfaceHandle, std::unique_ptr<KRSurface>>& KRSurfaceManager::getSurfaces()
+{
+  return m_surfaces;
+}