DriveWorks SDK Reference
5.8.83 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/base/Config.h>
53#include <dw/core/base/Types.h>
55#include <dw/core/base/Status.h>
56#include <dw/core/time/Timer.h>
57
58#include <cuda_runtime_api.h>
59
60// type definitions for CUDA structs
64
65// Forward declares from EGL
66typedef void* EGLDisplay;
67
68#ifdef __cplusplus
69extern "C" {
70#endif
71
81// coverity[misra_c_2012_rule_1_1_violation]
82typedef struct dwContextObject* dwContextHandle_t;
83typedef struct dwContextObject const* dwConstContextHandle_t;
84
85typedef struct dwModuleObject* dwModuleHandle_t;
86typedef struct dwModuleObject const* dwConstModuleHandle_t;
87
91typedef struct dwContextParameters
92{
93
94#ifdef DW_USE_EGL
96 EGLDisplay eglDisplay;
97
102 bool skipEglInit;
103#endif
104
109 const char8_t* dataPath;
110
116
124
129
136
139
144{
146 size_t (*write)(dwCustomizedFileHandle hnd, const void* ptr, size_t size);
147 size_t (*read)(dwCustomizedFileHandle hnd, void* ptr, size_t size);
148 bool (*getString)(dwCustomizedFileHandle hnd, char8_t* ptr, size_t size);
155 dwCustomizedFileHandle (*open)(const char8_t* ptr1, const char8_t* ptr2);
156
158
172
188dwStatus dwGetLastError(char8_t const** const errorMsg);
189
219dwStatus dwInitialize(dwContextHandle_t* const context, dwVersion const headerVersion, dwContextParameters const* const params);
220
235
253
268
292dwStatus dwContext_isTimePTPSynchronized(bool* const flag, dwContextHandle_t const context); // clang-tidy NOLINT(readability-non-const-parameter);
293
303
318dwStatus dwContext_selectGPUDevice(int32_t const deviceNumber, dwContextHandle_t const context);
319
331dwStatus dwContext_getGPUDeviceCurrent(int32_t* const deviceNumber, dwContextHandle_t const context);
332
344dwStatus dwContext_getGPUCount(int32_t* const count, dwContextHandle_t const context);
345
346#ifndef DW_IS_SAFETY
362dwStatus dwContext_getGPUProperties(cudaDeviceProp* const properties, int32_t const deviceNum,
363 dwContextHandle_t const context);
364#endif
365
383dwStatus dwContext_getGPUAttribute(int32_t* const value, cudaDeviceAttr const attribute, int32_t const deviceNum,
384 dwContextHandle_t const context);
385
397dwStatus dwContext_getGPUArchitecture(char8_t const** const architecture, dwContextHandle_t const context);
398
412dwStatus dwContext_getCUDAProperties(int32_t* const driverVersion, int32_t* const apiVersion, dwContextHandle_t const context);
413
427dwStatus dwContext_getGPUDeviceType(dwGPUDeviceType* const deviceType, int32_t const deviceNum, dwContextHandle_t const context);
428
429#ifdef DW_USE_EGL
447dwStatus dwContext_setEGLDisplay(EGLDisplay display, dwContextHandle_t context);
448
463dwStatus dwContext_getEGLDisplay(EGLDisplay* display, dwContextHandle_t context);
464#endif
465
477dwStatus dwContext_getDLAEngineCount(int32_t* const count, dwContextHandle_t const context);
478
492dwStatus dwContext_getDataPath(char8_t const** const dataPath, dwContextHandle_t const context);
493
505dwStatus dwContext_getUseVirtualTime(bool* const useVirtualTime, dwContextHandle_t const ctx);
506
507#ifdef __cplusplus
508}
509#endif
511#endif // DW_CORE_CONTEXT_H_
NVIDIA DriveWorks API: Timer
NVIDIA DriveWorks API: Core Status Methods
NVIDIA DriveWorks API: Core Types
NVIDIA DriveWorks API: Core Version Information
struct cudaDeviceProp cudaDeviceProp
Definition: Context.h:61
enum cudaDeviceAttr cudaDeviceAttr
Definition: Context.h:62
void * EGLDisplay
Definition: Context.h:66
enum cudaTextureAddressMode cudaTextureAddressMode
Definition: Context.h:63
NVIDIA DriveWorks API: Core Exports
const char8_t * dataPath
Path where all DriveWorks related data required during runtime are stored.
Definition: Context.h:109
bool enablePVA
if true, PVA platform will be enabled.
Definition: Context.h:123
bool skipCudaInit
if true will skip CUDA initialization in the context
Definition: Context.h:115
bool enableCudaTaskGraph
if true, Cuda task-graph will be used where possible.
Definition: Context.h:128
bool useVirtualTime
if true, the context's time source will be a virtual clock.
Definition: Context.h:134
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:85
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:83
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:86
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:82
DW_API_PUBLIC dwStatus dwContext_advanceTime(dwTime_t const newTime, dwContextHandle_t const context)
Advances the virtual time to newTime.
DW_API_PUBLIC dwStatus dwContext_getTimeSource(dwTimeSourceHandle_t *const source, dwContextHandle_t const context)
Retrieve time source used in the context.
void * dwCustomizedFileHandle
FileStream function pointers handle.
Definition: Context.h:138
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:92
#define DW_API_PUBLIC
Definition: Exports.h:54
dwStatus
Status definition.
Definition: Status.h:171
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
struct dwTimeSourceObject * dwTimeSourceHandle_t
Definition: Timer.h:62
Data structure representing a customized FileStream that can be passed in.
Definition: Context.h:144
size_t(* read)(dwCustomizedFileHandle hnd, void *ptr, size_t size)
Definition: Context.h:147
void(* setPosition)(dwCustomizedFileHandle hnd, size_t size)
Definition: Context.h:151
dwCustomizedFileHandle(* open)(const char8_t *ptr1, const char8_t *ptr2)
Definition: Context.h:155
size_t(* write)(dwCustomizedFileHandle hnd, const void *ptr, size_t size)
Definition: Context.h:146
size_t(* size)(dwCustomizedFileHandle hnd)
Definition: Context.h:149
bool(* getString)(dwCustomizedFileHandle hnd, char8_t *ptr, size_t size)
Definition: Context.h:148
void(* flush)(dwCustomizedFileHandle hnd)
Definition: Context.h:154
bool(* error)(dwCustomizedFileHandle hnd)
Definition: Context.h:153
bool(* eof)(dwCustomizedFileHandle hnd)
Definition: Context.h:152
void(* close)(dwCustomizedFileHandle hnd)
Definition: Context.h:145
size_t(* getPosition)(dwCustomizedFileHandle hnd)
Definition: Context.h:150