New lightmapper

-Added LocalVector (needed it)
-Added stb_rect_pack (It's pretty cool, we could probably use it for other stuff too)
-Fixes and changes all around the place
-Added library for 128 bits fixed point (required for Delaunay3D)

thirdparty/oidn/core/device.cpp

@@ -0,0 +1,205 @@
+// ======================================================================== //
+// Copyright 2009-2019 Intel Corporation                                    //
+//                                                                          //
+// Licensed under the Apache License, Version 2.0 (the "License");          //
+// you may not use this file except in compliance with the License.         //
+// You may obtain a copy of the License at                                  //
+//                                                                          //
+//     http://www.apache.org/licenses/LICENSE-2.0                           //
+//                                                                          //
+// Unless required by applicable law or agreed to in writing, software      //
+// distributed under the License is distributed on an "AS IS" BASIS,        //
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. //
+// See the License for the specific language governing permissions and      //
+// limitations under the License.                                           //
+// ======================================================================== //
+
+#include "device.h"
+#include "autoencoder.h"
+
+namespace oidn {
+
+  thread_local Device::ErrorState Device::globalError;
+
+  Device::Device()
+  {
+    if (!mayiuse(sse41))
+      throw Exception(Error::UnsupportedHardware, "SSE4.1 support is required at minimum");
+  }
+
+  Device::~Device()
+  {
+  }
+
+  void Device::setError(Device* device, Error code, const std::string& message)
+  {
+    // Update the stored error only if the previous error was queried
+    if (device)
+    {
+      ErrorState& curError = device->error.get();
+
+      if (curError.code == Error::None)
+      {
+        curError.code = code;
+        curError.message = message;
+      }
+
+      // Print the error message in verbose mode
+      if (device->isVerbose())
+        std::cerr << "Error: " << message << std::endl;
+
+      // Call the error callback function
+      ErrorFunction errorFunc;
+      void* errorUserPtr;
+
+      {
+        std::lock_guard<std::mutex> lock(device->mutex);
+        errorFunc = device->errorFunc;
+        errorUserPtr = device->errorUserPtr;
+      }
+
+      if (errorFunc)
+        errorFunc(errorUserPtr, code, (code == Error::None) ? nullptr : message.c_str());
+    }
+    else
+    {
+      if (globalError.code == Error::None)
+      {
+        globalError.code = code;
+        globalError.message = message;
+      }
+    }
+  }
+
+  Error Device::getError(Device* device, const char** outMessage)
+  {
+    // Return and clear the stored error code, but keep the error message so pointers to it will
+    // remain valid until the next getError call
+    if (device)
+    {
+      ErrorState& curError = device->error.get();
+      const Error code = curError.code;
+      if (outMessage)
+        *outMessage = (code == Error::None) ? nullptr : curError.message.c_str();
+      curError.code = Error::None;
+      return code;
+    }
+    else
+    {
+      const Error code = globalError.code;
+      if (outMessage)
+        *outMessage = (code == Error::None) ? nullptr : globalError.message.c_str();
+      globalError.code = Error::None;
+      return code;
+    }
+  }
+
+  void Device::setErrorFunction(ErrorFunction func, void* userPtr)
+  {
+    errorFunc = func;
+    errorUserPtr = userPtr;
+  }
+
+  int Device::get1i(const std::string& name)
+  {
+    if (name == "numThreads")
+      return numThreads;
+    else if (name == "setAffinity")
+      return setAffinity;
+    else if (name == "verbose")
+      return verbose;
+    else if (name == "version")
+      return OIDN_VERSION;
+    else if (name == "versionMajor")
+      return OIDN_VERSION_MAJOR;
+    else if (name == "versionMinor")
+      return OIDN_VERSION_MINOR;
+    else if (name == "versionPatch")
+      return OIDN_VERSION_PATCH;
+    else
+      throw Exception(Error::InvalidArgument, "invalid parameter");
+  }
+
+  void Device::set1i(const std::string& name, int value)
+  {
+    if (name == "numThreads")
+      numThreads = value;
+    else if (name == "setAffinity")
+      setAffinity = value;
+    else if (name == "verbose")
+    {
+      verbose = value;
+      error.verbose = value;
+    }
+
+    dirty = true;
+  }
+
+  void Device::commit()
+  {
+    if (isCommitted())
+      throw Exception(Error::InvalidOperation, "device can be committed only once");
+
+    // Create the task arena
+    const int maxNumThreads = 1; //affinity ? affinity->getNumThreads() : tbb::this_task_arena::max_concurrency();
+    numThreads = (numThreads > 0) ? min(numThreads, maxNumThreads) : maxNumThreads;
+
+    dirty = false;
+
+    if (isVerbose())
+      print();
+  }
+
+  void Device::checkCommitted()
+  {
+    if (dirty)
+      throw Exception(Error::InvalidOperation, "changes to the device are not committed");
+  }
+
+  Ref<Buffer> Device::newBuffer(size_t byteSize)
+  {
+    checkCommitted();
+    return makeRef<Buffer>(Ref<Device>(this), byteSize);
+  }
+
+  Ref<Buffer> Device::newBuffer(void* ptr, size_t byteSize)
+  {
+    checkCommitted();
+    return makeRef<Buffer>(Ref<Device>(this), ptr, byteSize);
+  }
+
+  Ref<Filter> Device::newFilter(const std::string& type)
+  {
+    checkCommitted();
+
+    if (isVerbose())
+      std::cout << "Filter: " << type << std::endl;
+
+    Ref<Filter> filter;
+
+// Godot doesn't need Raytracing filters. Removing them saves space in the weights files.
+#if 0
+    if (type == "RT")
+      filter = makeRef<RTFilter>(Ref<Device>(this));
+#endif
+	if (type == "RTLightmap")
+      filter = makeRef<RTLightmapFilter>(Ref<Device>(this));
+    else
+      throw Exception(Error::InvalidArgument, "unknown filter type");
+
+    return filter;
+  }
+
+  void Device::print()
+  {
+    std::cout << std::endl;
+
+    std::cout << "Intel(R) Open Image Denoise " << OIDN_VERSION_STRING << std::endl;
+    std::cout << "  Compiler: " << getCompilerName() << std::endl;
+    std::cout << "  Build   : " << getBuildName() << std::endl;
+    std::cout << "  Platform: " << getPlatformName() << std::endl;
+
+    std::cout << std::endl;
+  }
+
+} // namespace oidn