DriveWorks SDK Reference
5.6.215 Release
For Test and Development only

Context.h
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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