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  • DriveWorks SDK Reference
    5.6.215 Release
    For Test and Development only

    All Data Structures Files Functions Variables Typedefs Enumerations Enumerator Macros Modules Pages
    Context.h
    Go to the documentation of this file.
    1
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    30
    48#ifndef DW_CORE_CONTEXT_H_
    49#define DW_CORE_CONTEXT_H_
    50
    51#include <dw/core/Config.h>
    53#include <dw/core/base/Types.h>
    54#include <dw/core/Version.h>
    55#include <dw/core/base/Status.h>
    56#include <cuda_runtime_api.h>
    57
    58// type definitions for CUDA structs
    62
    63// Forward declares from EGL
    64typedef void* EGLDisplay;
    65
    66#ifdef __cplusplus
    67extern "C" {
    68#endif
    69
    79typedef struct dwContextObject* dwContextHandle_t;
    80typedef struct dwContextObject const* dwConstContextHandle_t;
    81
    82typedef struct dwModuleObject* dwModuleHandle_t;
    83typedef struct dwModuleObject const* dwConstModuleHandle_t;
    84
    88typedef struct dwContextParameters
    89{
    90
    91#ifdef DW_USE_EGL
    93 EGLDisplay eglDisplay;
    94
    99 bool skipEglInit;
    100#endif
    101
    106 const char8_t* dataPath;
    107
    113
    121
    126
    133
    136
    141{
    143 size_t (*write)(dwCustomizedFileHandle hnd, const void* ptr, size_t size);
    144 size_t (*read)(dwCustomizedFileHandle hnd, void* ptr, size_t size);
    145 bool (*getString)(dwCustomizedFileHandle hnd, char8_t* ptr, size_t size);
    152 dwCustomizedFileHandle (*open)(const char8_t* ptr1, const char8_t* ptr2);
    153
    155
    169
    185dwStatus dwGetLastError(char8_t const** const errorMsg);
    186
    216dwStatus dwInitialize(dwContextHandle_t* const context, dwVersion const headerVersion, dwContextParameters const* const params);
    217
    232
    250
    274dwStatus dwContext_isTimePTPSynchronized(bool* const flag, dwContextHandle_t const context); // clang-tidy NOLINT(readability-non-const-parameter);
    275
    285
    300dwStatus dwContext_selectGPUDevice(int32_t const deviceNumber, dwContextHandle_t const context);
    301
    313dwStatus dwContext_getGPUDeviceCurrent(int32_t* const deviceNumber, dwContextHandle_t const context);
    314
    326dwStatus dwContext_getGPUCount(int32_t* const count, dwContextHandle_t const context);
    327
    328#ifndef DW_IS_SAFETY
    344dwStatus dwContext_getGPUProperties(cudaDeviceProp* const properties, int32_t const deviceNum,
    345 dwContextHandle_t const context);
    346#endif
    347
    365dwStatus dwContext_getGPUAttribute(int32_t* const value, cudaDeviceAttr const attribute, int32_t const deviceNum,
    366 dwContextHandle_t const context);
    367
    379dwStatus dwContext_getGPUArchitecture(char8_t const** const architecture, dwContextHandle_t const context);
    380
    394dwStatus dwContext_getCUDAProperties(int32_t* const driverVersion, int32_t* const apiVersion, dwContextHandle_t const context);
    395
    409dwStatus dwContext_getGPUDeviceType(dwGPUDeviceType* const deviceType, int32_t const deviceNum, dwContextHandle_t const context);
    410
    411#ifdef DW_USE_EGL
    429dwStatus dwContext_setEGLDisplay(EGLDisplay display, dwContextHandle_t context);
    430
    445dwStatus dwContext_getEGLDisplay(EGLDisplay* display, dwContextHandle_t context);
    446#endif
    447
    459dwStatus dwContext_getDLAEngineCount(int32_t* const count, dwContextHandle_t const context);
    460
    474dwStatus dwContext_getDataPath(char8_t const** const dataPath, dwContextHandle_t const context);
    475
    487dwStatus dwContext_getUseVirtualTime(bool* const useVirtualTime, dwContextHandle_t const ctx);
    488
    489#ifdef __cplusplus
    490}
    491#endif
    493#endif // DW_CORE_CONTEXT_H_
    NVIDIA DriveWorks API: Core Version Information
    NVIDIA DriveWorks API: Core Status Methods
    NVIDIA DriveWorks API: Core Types
    struct cudaDeviceProp cudaDeviceProp
    Definition: Context.h:59
    enum cudaDeviceAttr cudaDeviceAttr
    Definition: Context.h:60
    void * EGLDisplay
    Definition: Context.h:64
    enum cudaTextureAddressMode cudaTextureAddressMode
    Definition: Context.h:61
    NVIDIA DriveWorks API: Core Exports
    const char8_t * dataPath
    Path where all DriveWorks related data required during runtime are stored.
    Definition: Context.h:106
    bool enablePVA
    if true, PVA platform will be enabled.
    Definition: Context.h:120
    bool skipCudaInit
    if true will skip CUDA initialization in the context
    Definition: Context.h:112
    bool enableCudaTaskGraph
    if true, Cuda task-graph will be used where possible.
    Definition: Context.h:125
    bool useVirtualTime
    if true, the context's time source will be a virtual clock.
    Definition: Context.h:131
    DW_API_PUBLIC dwStatus dwInitialize(dwContextHandle_t *const context, dwVersion const headerVersion, dwContextParameters const *const params)
    Creates and initializes an SDK context.
    DW_API_PUBLIC dwStatus dwRelease(dwContextHandle_t const context)
    Releases the context.
    DW_API_PUBLIC dwStatus dwContext_getUseVirtualTime(bool *const useVirtualTime, dwContextHandle_t const ctx)
    Check if in virtual time mode.
    DW_API_PUBLIC dwStatus dwContext_getGPUDeviceCurrent(int32_t *const deviceNumber, dwContextHandle_t const context)
    Returns the currently selected GPU device.
    struct dwModuleObject * dwModuleHandle_t
    Definition: Context.h:82
    DW_API_PUBLIC dwStatus dwContext_setCustomFileFunctions(dwContextHandle_t const context, dwCustomizedFileFunctions *const fileFunctionPtr)
    Set the customized fileStream function pointers in context.
    DW_API_PUBLIC dwStatus dwContext_getCUDAProperties(int32_t *const driverVersion, int32_t *const apiVersion, dwContextHandle_t const context)
    Returns Driver and Runtime API version of CUDA on the current machine.
    DW_API_PUBLIC dwStatus dwContext_getGPUCount(int32_t *const count, dwContextHandle_t const context)
    Get the available GPU devices count.
    struct dwContextObject const * dwConstContextHandle_t
    Definition: Context.h:80
    DW_API_PUBLIC dwStatus dwContext_getGPUDeviceType(dwGPUDeviceType *const deviceType, int32_t const deviceNum, dwContextHandle_t const context)
    Returns the device type of the input GPU number.
    DW_API_PUBLIC dwStatus dwContext_getDLAEngineCount(int32_t *const count, dwContextHandle_t const context)
    Get the available DLA engines count.
    struct dwModuleObject const * dwConstModuleHandle_t
    Definition: Context.h:83
    DW_API_PUBLIC dwStatus dwContext_getGPUArchitecture(char8_t const **const architecture, dwContextHandle_t const context)
    Returns the architecture for the currently selected CUDA device.
    DW_API_PUBLIC dwStatus dwContext_selectGPUDevice(int32_t const deviceNumber, dwContextHandle_t const context)
    Selects a GPU device, if available.
    DW_API_PUBLIC dwStatus dwContext_getGPUAttribute(int32_t *const value, cudaDeviceAttr const attribute, int32_t const deviceNum, dwContextHandle_t const context)
    Returns the value of the selected CUDA attribute for the specific CUDA device.
    DW_API_PUBLIC dwStatus dwContext_getGPUProperties(cudaDeviceProp *const properties, int32_t const deviceNum, dwContextHandle_t const context)
    Returns the properties for the specific CUDA device.
    DW_API_PUBLIC dwStatus dwContext_getCurrentTime(dwTime_t *const time, dwContextHandle_t const context)
    Returns the current timestamp.
    DW_API_PUBLIC dwStatus dwContext_getDataPath(char8_t const **const dataPath, dwContextHandle_t const context)
    Gets the initial data path of the library that contains the driveworks context.
    DW_API_PUBLIC dwStatus dwGetLastError(char8_t const **const errorMsg)
    Retrieves the last error encountered.
    struct dwContextObject * dwContextHandle_t
    Context handle.
    Definition: Context.h:79
    DW_API_PUBLIC dwStatus dwContext_advanceTime(dwTime_t const newTime, dwContextHandle_t const context)
    Advances the virtual time to newTime.
    void * dwCustomizedFileHandle
    FileStream function pointers handle.
    Definition: Context.h:135
    DW_API_PUBLIC dwStatus dwContext_isTimePTPSynchronized(bool *const flag, dwContextHandle_t const context)
    Check if the used time source inside the context is synchronized over PTP.
    A set of parameters that is passed to the SDK to create the context.
    Definition: Context.h:89
    #define DW_API_PUBLIC
    Definition: Exports.h:54
    dwStatus
    Status definition.
    Definition: Status.h:170
    dwGPUDeviceType
    GPU device type definitions Only applicable on Drive platforms.
    Definition: Types.h:161
    int64_t dwTime_t
    Specifies a timestamp unit, in microseconds.
    Definition: Types.h:82
    Data structure representing a customized FileStream that can be passed in.
    Definition: Context.h:141
    size_t(* read)(dwCustomizedFileHandle hnd, void *ptr, size_t size)
    Definition: Context.h:144
    void(* setPosition)(dwCustomizedFileHandle hnd, size_t size)
    Definition: Context.h:148
    dwCustomizedFileHandle(* open)(const char8_t *ptr1, const char8_t *ptr2)
    Definition: Context.h:152
    size_t(* write)(dwCustomizedFileHandle hnd, const void *ptr, size_t size)
    Definition: Context.h:143
    size_t(* size)(dwCustomizedFileHandle hnd)
    Definition: Context.h:146
    bool(* getString)(dwCustomizedFileHandle hnd, char8_t *ptr, size_t size)
    Definition: Context.h:145
    void(* flush)(dwCustomizedFileHandle hnd)
    Definition: Context.h:151
    bool(* error)(dwCustomizedFileHandle hnd)
    Definition: Context.h:150
    bool(* eof)(dwCustomizedFileHandle hnd)
    Definition: Context.h:149
    void(* close)(dwCustomizedFileHandle hnd)
    Definition: Context.h:142
    size_t(* getPosition)(dwCustomizedFileHandle hnd)
    Definition: Context.h:147
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