//===------- ocloc_api.h --------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//

// This file is copied from
// https://github.com/intel/compute-runtime/blob/master/shared/offline_compiler/source/ocloc_api.h

#include <cstdint>

#ifndef OCLOC_MAKE_VERSION
/// Generates ocloc API versions
#define OCLOC_MAKE_VERSION(_major, _minor) ((_major << 16) | (_minor & 0x0000ffff))
#endif  // OCLOC_MAKE_VERSION

typedef enum _ocloc_version_t {
  OCLOC_VERSION_1_0          = OCLOC_MAKE_VERSION(1, 0),  ///< version 1.0
  OCLOC_VERSION_CURRENT      = OCLOC_MAKE_VERSION(1, 0),  ///< latest known version
  OCLOC_VERSION_FORCE_UINT32 = 0x7fffffff
} ocloc_version_t;

#ifdef _WIN32
#define SIGNATURE __declspec(dllexport) int __cdecl
#else
#define SIGNATURE int
#endif

extern "C" {
/// Invokes ocloc API using C interface. Supported commands match
/// the functionality of ocloc executable (check ocloc's "help"
/// for reference : shared/offline_compiler/source/ocloc_api.cpp)
/// at https://github.com/intel/compute-runtime.
///
/// NumArgs and argv params represent the command line.
/// Remaining params represent I/O.
/// Output params should be freed using oclocFreeOutput() when
/// no longer needed.
/// List and names of outputs match outputs of ocloc executable.
///
/// \param NumArgs is the number of arguments to pass to ocloc.
///
/// \param Argv is an array of arguments to be passed to ocloc.
///
/// \param NumSources is the number of in-memory representations
/// of source files to be passed to ocloc.
///
/// \param DataSources is an array of in-memory representations
/// of source files to be passed to ocloc.
///
/// \param LenSources is an array of sizes of in-memory representations
/// of source files passed to ocloc as DataSources.
///
/// \param NameSources is an array of names of in-memory representations
/// of source files passed to ocloc as DataSources.
///
/// \param NumInputHeaders is the number of in-memory representations
/// of header files to be passed to ocloc.
///
/// \param DataInputHeaders is an array of in-memory representations
/// of header files to be passed to ocloc.
///
/// \param LenInputHeaders is an array of sizes of in-memory representations
/// of header files passed to ocloc as DataInputHeaders.
///
/// \param NameInputHeaders is an array of names of in-memory representations
/// of header files passed to ocloc as DataInputHeaders.
///
/// \param NumOutputs returns the number of outputs.
///
/// \param DataOutputs returns an array of in-memory representations
/// of output files.
///
/// \param LenOutputs returns an array of sizes of in-memory representations
/// of output files.
///
/// \param NameOutputs returns an array of names of in-memory representations
/// of output files. Special name stdout.log describes output that contains
/// messages generated by ocloc (e.g. compiler errors/warnings).
///
/// \returns 0 on succes. Returns non-0 in case of failure.
SIGNATURE oclocInvoke(uint32_t NumArgs, const char *Argv[], uint32_t NumSources, const uint8_t **DataSources, const uint64_t *LenSources,
                      const char **NameSources, uint32_t NumInputHeaders, const uint8_t **DataInputHeaders, const uint64_t *LenInputHeaders,
                      const char **NameInputHeaders, uint32_t *NumOutputs, uint8_t ***DataOutputs, uint64_t **LenOutputs, char ***NameOutputs);

/// Frees results of oclocInvoke
///
/// \param NumOutputs is number of outputs as returned by oclocInvoke().
///
/// \param DataOutputs is array of outputs as returned by oclocInvoke().
///
/// \param LenOutputs is array of sizes of outputs as returned by oclocInvoke().
///
/// \param NameOutputs is array of names of outputs as returned by oclocInvoke()
///
/// \returns 0 on succes. Returns non-0 in case of failure.
SIGNATURE oclocFreeOutput(uint32_t *NumOutputs, uint8_t ***DataOutputs, uint64_t **LenOutputs, char ***NameOutputs);

/// Returns the current version of ocloc.
SIGNATURE oclocVersion();
}