// a stripped-down subset of cl.h and cl_platform.h, for BOINC

#ifndef BOINC_CL_BOINC_H
#define BOINC_CL_BOINC_H

#include <cstddef>

#if defined(_WIN32)
#define CL_API_ENTRY
#define CL_API_CALL __stdcall
    #define CL_CALLBACK     __stdcall
#else
#define CL_API_ENTRY
#define CL_API_CALL
    #define CL_CALLBACK
#endif

#if (defined (_WIN32) && defined(_MSC_VER))
/* scalar types  */
typedef signed   __int8         cl_char;
typedef unsigned __int8         cl_uchar;
typedef signed   __int16        cl_short;
typedef unsigned __int16        cl_ushort;
typedef signed   __int32        cl_int;
typedef unsigned __int32        cl_uint;
typedef signed   __int64        cl_long;
typedef unsigned __int64        cl_ulong;
typedef unsigned __int16        cl_half;
#else /* !_WIN32 */
#include <stdint.h>
typedef int8_t    cl_char;
typedef uint8_t   cl_uchar;
typedef int16_t   cl_short;
typedef uint16_t  cl_ushort;
typedef int32_t   cl_int;
typedef uint32_t  cl_uint;
typedef int64_t   cl_long;
typedef uint64_t  cl_ulong;
typedef uint16_t  cl_half;
#endif /* !_WIN32 */
typedef float                   cl_float;
typedef double                  cl_double;

typedef struct _cl_platform_id *    cl_platform_id;
typedef struct _cl_device_id *      cl_device_id;
typedef struct _cl_context *        cl_context;
typedef struct _cl_command_queue *  cl_command_queue;
typedef struct _cl_mem *            cl_mem;
typedef struct _cl_program *        cl_program;
typedef struct _cl_kernel *         cl_kernel;
typedef struct _cl_event *          cl_event;
typedef struct _cl_sampler *        cl_sampler;

typedef cl_uint             cl_bool;
typedef cl_ulong            cl_bitfield;
typedef cl_bitfield         cl_device_type;
typedef cl_uint             cl_platform_info;
typedef cl_uint             cl_device_info;
typedef cl_bitfield         cl_device_fp_config;
typedef cl_uint             cl_device_mem_cache_type;
typedef cl_uint             cl_device_local_mem_type;
typedef cl_bitfield         cl_device_exec_capabilities;
typedef cl_bitfield         cl_command_queue_properties;

/* Error Codes */
#define CL_SUCCESS                                  0
#define CL_DEVICE_NOT_FOUND                         -1
#define CL_DEVICE_NOT_AVAILABLE                     -2
#define CL_COMPILER_NOT_AVAILABLE                   -3
#define CL_MEM_OBJECT_ALLOCATION_FAILURE            -4
#define CL_OUT_OF_RESOURCES                         -5
#define CL_OUT_OF_HOST_MEMORY                       -6
#define CL_PROFILING_INFO_NOT_AVAILABLE             -7
#define CL_MEM_COPY_OVERLAP                         -8
#define CL_IMAGE_FORMAT_MISMATCH                    -9
#define CL_IMAGE_FORMAT_NOT_SUPPORTED               -10
#define CL_BUILD_PROGRAM_FAILURE                    -11
#define CL_MAP_FAILURE                              -12
#define CL_MISALIGNED_SUB_BUFFER_OFFSET             -13
#define CL_EXEC_STATUS_ERROR_FOR_EVENTS_IN_WAIT_LIST -14

#define CL_INVALID_VALUE                            -30
#define CL_INVALID_DEVICE_TYPE                      -31
#define CL_INVALID_PLATFORM                         -32
#define CL_INVALID_DEVICE                           -33
#define CL_INVALID_CONTEXT                          -34
#define CL_INVALID_QUEUE_PROPERTIES                 -35
#define CL_INVALID_COMMAND_QUEUE                    -36
#define CL_INVALID_HOST_PTR                         -37
#define CL_INVALID_MEM_OBJECT                       -38
#define CL_INVALID_IMAGE_FORMAT_DESCRIPTOR          -39
#define CL_INVALID_IMAGE_SIZE                       -40
#define CL_INVALID_SAMPLER                          -41
#define CL_INVALID_BINARY                           -42
#define CL_INVALID_BUILD_OPTIONS                    -43
#define CL_INVALID_PROGRAM                          -44
#define CL_INVALID_PROGRAM_EXECUTABLE               -45
#define CL_INVALID_KERNEL_NAME                      -46
#define CL_INVALID_KERNEL_DEFINITION                -47
#define CL_INVALID_KERNEL                           -48
#define CL_INVALID_ARG_INDEX                        -49
#define CL_INVALID_ARG_VALUE                        -50
#define CL_INVALID_ARG_SIZE                         -51
#define CL_INVALID_KERNEL_ARGS                      -52
#define CL_INVALID_WORK_DIMENSION                   -53
#define CL_INVALID_WORK_GROUP_SIZE                  -54
#define CL_INVALID_WORK_ITEM_SIZE                   -55
#define CL_INVALID_GLOBAL_OFFSET                    -56
#define CL_INVALID_EVENT_WAIT_LIST                  -57
#define CL_INVALID_EVENT                            -58
#define CL_INVALID_OPERATION                        -59
#define CL_INVALID_GL_OBJECT                        -60
#define CL_INVALID_BUFFER_SIZE                      -61
#define CL_INVALID_MIP_LEVEL                        -62
#define CL_INVALID_GLOBAL_WORK_SIZE                 -63
#define CL_INVALID_PROPERTY                         -64

// cl_platform_info
#define CL_PLATFORM_PROFILE                         0x0900
#define CL_PLATFORM_VERSION                         0x0901
#define CL_PLATFORM_NAME                            0x0902
#define CL_PLATFORM_VENDOR                          0x0903
#define CL_PLATFORM_EXTENSIONS                      0x0904

/* cl_device_type - bitfield */
#define CL_DEVICE_TYPE_DEFAULT                      (1 << 0)
#define CL_DEVICE_TYPE_CPU                          (1 << 1)
#define CL_DEVICE_TYPE_GPU                          (1 << 2)
#define CL_DEVICE_TYPE_ACCELERATOR                  (1 << 3)
#define CL_DEVICE_TYPE_ALL                          0xFFFFFFFF

/* cl_device_info */
#define CL_DEVICE_TYPE                              0x1000
#define CL_DEVICE_VENDOR_ID                         0x1001
#define CL_DEVICE_MAX_COMPUTE_UNITS                 0x1002
#define CL_DEVICE_MAX_WORK_ITEM_DIMENSIONS          0x1003
#define CL_DEVICE_MAX_WORK_GROUP_SIZE               0x1004
#define CL_DEVICE_MAX_WORK_ITEM_SIZES               0x1005
#define CL_DEVICE_PREFERRED_VECTOR_WIDTH_CHAR       0x1006
#define CL_DEVICE_PREFERRED_VECTOR_WIDTH_SHORT      0x1007
#define CL_DEVICE_PREFERRED_VECTOR_WIDTH_INT        0x1008
#define CL_DEVICE_PREFERRED_VECTOR_WIDTH_LONG       0x1009
#define CL_DEVICE_PREFERRED_VECTOR_WIDTH_FLOAT      0x100A
#define CL_DEVICE_PREFERRED_VECTOR_WIDTH_DOUBLE     0x100B
#define CL_DEVICE_MAX_CLOCK_FREQUENCY               0x100C
#define CL_DEVICE_ADDRESS_BITS                      0x100D
#define CL_DEVICE_MAX_READ_IMAGE_ARGS               0x100E
#define CL_DEVICE_MAX_WRITE_IMAGE_ARGS              0x100F
#define CL_DEVICE_MAX_MEM_ALLOC_SIZE                0x1010
#define CL_DEVICE_IMAGE2D_MAX_WIDTH                 0x1011
#define CL_DEVICE_IMAGE2D_MAX_HEIGHT                0x1012
#define CL_DEVICE_IMAGE3D_MAX_WIDTH                 0x1013
#define CL_DEVICE_IMAGE3D_MAX_HEIGHT                0x1014
#define CL_DEVICE_IMAGE3D_MAX_DEPTH                 0x1015
#define CL_DEVICE_IMAGE_SUPPORT                     0x1016
#define CL_DEVICE_MAX_PARAMETER_SIZE                0x1017
#define CL_DEVICE_MAX_SAMPLERS                      0x1018
#define CL_DEVICE_MEM_BASE_ADDR_ALIGN               0x1019
#define CL_DEVICE_MIN_DATA_TYPE_ALIGN_SIZE          0x101A
#define CL_DEVICE_SINGLE_FP_CONFIG                  0x101B
#define CL_DEVICE_GLOBAL_MEM_CACHE_TYPE             0x101C
#define CL_DEVICE_GLOBAL_MEM_CACHELINE_SIZE         0x101D
#define CL_DEVICE_GLOBAL_MEM_CACHE_SIZE             0x101E
#define CL_DEVICE_GLOBAL_MEM_SIZE                   0x101F
#define CL_DEVICE_MAX_CONSTANT_BUFFER_SIZE          0x1020
#define CL_DEVICE_MAX_CONSTANT_ARGS                 0x1021
#define CL_DEVICE_LOCAL_MEM_TYPE                    0x1022
#define CL_DEVICE_LOCAL_MEM_SIZE                    0x1023
#define CL_DEVICE_ERROR_CORRECTION_SUPPORT          0x1024
#define CL_DEVICE_PROFILING_TIMER_RESOLUTION        0x1025
#define CL_DEVICE_ENDIAN_LITTLE                     0x1026
#define CL_DEVICE_AVAILABLE                         0x1027
#define CL_DEVICE_COMPILER_AVAILABLE                0x1028
#define CL_DEVICE_EXECUTION_CAPABILITIES            0x1029
#define CL_DEVICE_QUEUE_PROPERTIES                  0x102A
#define CL_DEVICE_NAME                              0x102B
#define CL_DEVICE_VENDOR                            0x102C
#define CL_DRIVER_VERSION                           0x102D
#define CL_DEVICE_PROFILE                           0x102E
#define CL_DEVICE_VERSION                           0x102F
#define CL_DEVICE_EXTENSIONS                        0x1030
#define CL_DEVICE_PLATFORM                          0x1031
#define CL_DEVICE_DOUBLE_FP_CONFIG                  0x1032
#define CL_DEVICE_HALF_FP_CONFIG                    0x1033
#define CL_DEVICE_PREFERRED_VECTOR_WIDTH_HALF       0x1034
#define CL_DEVICE_HOST_UNIFIED_MEMORY               0x1035
#define CL_DEVICE_NATIVE_VECTOR_WIDTH_CHAR          0x1036
#define CL_DEVICE_NATIVE_VECTOR_WIDTH_SHORT         0x1037
#define CL_DEVICE_NATIVE_VECTOR_WIDTH_INT           0x1038
#define CL_DEVICE_NATIVE_VECTOR_WIDTH_LONG          0x1039
#define CL_DEVICE_NATIVE_VECTOR_WIDTH_FLOAT         0x103A
#define CL_DEVICE_NATIVE_VECTOR_WIDTH_DOUBLE        0x103B
#define CL_DEVICE_NATIVE_VECTOR_WIDTH_HALF          0x103C
#define CL_DEVICE_OPENCL_C_VERSION                  0x103D

// Nvidia Specific Extensions
//
//

// cl_nv_device_attribute_query
// See: https://www.khronos.org/registry/cl/extensions/nv/cl_nv_device_attribute_query.txt
//
#define CL_DEVICE_COMPUTE_CAPABILITY_MAJOR_NV           0x4000
#define CL_DEVICE_COMPUTE_CAPABILITY_MINOR_NV           0x4001
#define CL_DEVICE_REGISTERS_PER_BLOCK_NV                0x4002
#define CL_DEVICE_WARP_SIZE_NV                          0x4003
#define CL_DEVICE_GPU_OVERLAP_NV                        0x4004
#define CL_DEVICE_KERNEL_EXEC_TIMEOUT_NV                0x4005
#define CL_DEVICE_INTEGRATED_MEMORY_NV                  0x4006


// AMD Specific Extensions
//
//

// cl_amd_device_attribute_query
// See: https://www.khronos.org/registry/cl/extensions/amd/cl_amd_device_attribute_query.txt
//
#define CL_DEVICE_PROFILING_TIMER_OFFSET_AMD            0x4036
#define CL_DEVICE_TOPOLOGY_AMD                          0x4037
#define CL_DEVICE_BOARD_NAME_AMD                        0x4038
#define CL_DEVICE_GLOBAL_FREE_MEMORY_AMD                0x4039
#define CL_DEVICE_SIMD_PER_COMPUTE_UNIT_AMD             0x4040
#define CL_DEVICE_SIMD_WIDTH_AMD                        0x4041
#define CL_DEVICE_SIMD_INSTRUCTION_WIDTH_AMD            0x4042
#define CL_DEVICE_WAVEFRONT_WIDTH_AMD                   0x4043
#define CL_DEVICE_GLOBAL_MEM_CHANNELS_AMD               0x4044
#define CL_DEVICE_GLOBAL_MEM_CHANNEL_BANKS_AMD          0x4045
#define CL_DEVICE_GLOBAL_MEM_CHANNEL_BANK_WIDTH_AMD     0x4046
#define CL_DEVICE_LOCAL_MEM_SIZE_PER_COMPUTE_UNIT_AMD   0x4047
#define CL_DEVICE_LOCAL_MEM_BANKS_AMD                   0x4048
#define CL_DEVICE_THREAD_TRACE_SUPPORTED_AMD            0x4049
#define CL_DEVICE_GFXIP_MAJOR_AMD                       0x404A
#define CL_DEVICE_GFXIP_MINOR_AMD                       0x404B
#define CL_DEVICE_AVAILABLE_ASYNC_QUEUES_AMD            0x404C


#ifdef __cplusplus
extern "C" {
#endif

/* Platform API */
extern CL_API_ENTRY cl_int CL_API_CALL
clGetPlatformIDs(cl_uint          /* num_entries */,
                 cl_platform_id * /* platforms */,
                 cl_uint *        /* num_platforms */);

extern CL_API_ENTRY cl_int CL_API_CALL
clGetPlatformInfo(cl_platform_id   /* platform */,
                  cl_platform_info /* param_name */,
                  size_t           /* param_value_size */,
                  void *           /* param_value */,
                  size_t *         /* param_value_size_ret */);

/* Device APIs */
extern CL_API_ENTRY cl_int CL_API_CALL
clGetDeviceIDs(cl_platform_id   /* platform */,
               cl_device_type   /* device_type */,
               cl_uint          /* num_entries */,
               cl_device_id *   /* devices */,
               cl_uint *        /* num_devices */);

extern CL_API_ENTRY cl_int CL_API_CALL
clGetDeviceInfo(cl_device_id    /* device */,
                cl_device_info  /* param_name */,
                size_t          /* param_value_size */,
                void *          /* param_value */,
                size_t *        /* param_value_size_ret */);

#ifdef __cplusplus
}
#endif

#endif // BOINC_CL_BOINC_H