LaunchParams.h

// ======================================================================== //
// Copyright 2019-2020 Ingo Wald                                            //
//                                                                          //
// 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.                                           //
// ======================================================================== //
 
#pragma once
 
#include "SBTObject.h"
#include "Module.h"
 
namespace owl {
 
  struct LaunchParamsType : public SBTObjectType {
    typedef std::shared_ptr<LaunchParamsType> SP;
 
    LaunchParamsType(Context *const context,
               size_t varStructSize,
               const std::vector<OWLVarDecl> &varDecls);
 
    virtual std::string toString() const { return "LaunchParamsType"; }
  };
 
  struct LaunchParams : public SBTObject<LaunchParamsType> {
    typedef std::shared_ptr<LaunchParams> SP;
 
    struct DeviceData : public RegisteredObject::DeviceData {
 
      DeviceData(const DeviceContext::SP &device, size_t  dataSize);
      ~DeviceData();
      
      const size_t            dataSize;
      
      OptixShaderBindingTable sbt = {};
 
      PinnedHostMem hostMemory;
      
      DeviceMemory         deviceMemory;
      
      cudaStream_t         stream = nullptr;
    };
 
    LaunchParams(Context *const context,
                 LaunchParamsType::SP type);
    std::string toString() const override;
 
    CUstream getCudaStream(const DeviceContext::SP &device);
 
    RegisteredObject::DeviceData::SP createOn(const DeviceContext::SP &device) override;
 
    inline DeviceData &getDD(const DeviceContext::SP &device) const;
      
    void sync();    
  };
 
  // ------------------------------------------------------------------
  // implementation section
  // ------------------------------------------------------------------
  
  inline LaunchParams::DeviceData &LaunchParams::getDD(const DeviceContext::SP &device) const
  {
    assert(device && device->ID >= 0 && device->ID < (int)deviceData.size());
    return deviceData[device->ID]->as<LaunchParams::DeviceData>();
  }
  
} // ::owl