Jan Eilers | a96489a | 2021-12-08 10:05:47 +0000 | [diff] [blame] | 1 | // |
| 2 | // Copyright © 2022 Arm Ltd and Contributors. All rights reserved. |
| 3 | // SPDX-License-Identifier: MIT |
| 4 | // |
| 5 | |
| 6 | #include <armnn_delegate.hpp> |
| 7 | #include <DelegateOptions.hpp> |
| 8 | |
| 9 | #if defined(ARMCOMPUTECL_ENABLED) |
| 10 | #include <arm_compute/core/CL/OpenCL.h> |
| 11 | #endif |
| 12 | |
| 13 | #include <jni.h> |
| 14 | #include <string> |
| 15 | |
| 16 | extern "C" { |
| 17 | |
| 18 | /// Creates an Arm NN Delegate object. |
| 19 | /// Options are passed in form of String arrays. For details about what options_keys and option_values |
| 20 | /// are supported please see: |
| 21 | // armnnDelegate::DelegateOptions::DelegateOptions(char const* const*, char const* const*,size_t,void (*)(const char*)) |
| 22 | JNIEXPORT jlong |
| 23 | JNICALL Java_com_arm_armnn_delegate_ArmnnDelegate_createDelegate(JNIEnv* env, |
| 24 | jclass clazz, |
| 25 | jobjectArray optionKeys, |
| 26 | jobjectArray optionValues) |
| 27 | { |
| 28 | int numOptions = env->GetArrayLength(optionKeys); |
| 29 | const char* nativeOptionKeys[numOptions]; |
| 30 | const char* nativeOptionValues[numOptions]; |
| 31 | |
| 32 | jstring jKeyStrings[numOptions]; |
| 33 | jstring jValueStrings[numOptions]; |
| 34 | |
| 35 | // Convert java array of string into char so we can make use of it in cpp code |
| 36 | for (int i = 0; i < numOptions; i++) |
| 37 | { |
| 38 | jKeyStrings[i] = static_cast<jstring>(env->GetObjectArrayElement(optionKeys, i)); |
| 39 | jValueStrings[i] = static_cast<jstring>(env->GetObjectArrayElement(optionValues, i)); |
| 40 | |
| 41 | nativeOptionKeys[i] = env->GetStringUTFChars(jKeyStrings[i], 0); |
| 42 | nativeOptionValues[i] = env->GetStringUTFChars(jValueStrings[i], 0); |
| 43 | } |
| 44 | |
| 45 | armnnDelegate::DelegateOptions delegateOptions(nativeOptionKeys, |
| 46 | nativeOptionValues, |
| 47 | numOptions, |
| 48 | nullptr); |
| 49 | |
| 50 | // Release jni memory. After the delegate options are created there is no need to hold on to it anymore. |
| 51 | for (int i = 0; i < numOptions; i++) |
| 52 | { |
| 53 | env->ReleaseStringUTFChars(jKeyStrings[i], nativeOptionKeys[i]); |
| 54 | env->ReleaseStringUTFChars(jValueStrings[i], nativeOptionValues[i]); |
| 55 | } |
| 56 | |
| 57 | return reinterpret_cast<jlong>(armnnDelegate::TfLiteArmnnDelegateCreate(delegateOptions)); |
| 58 | } |
| 59 | |
| 60 | /// Destroys a given Arm NN Delegate object |
| 61 | JNIEXPORT void |
| 62 | JNICALL Java_com_arm_armnn_delegate_ArmnnDelegate_deleteDelegate(JNIEnv* env, jclass clazz, jlong delegate) |
| 63 | { |
| 64 | armnnDelegate::TfLiteArmnnDelegateDelete(reinterpret_cast<TfLiteDelegate*>(delegate)); |
| 65 | } |
| 66 | |
| 67 | /// Returns true if a Arm Mali GPU is detected. |
| 68 | /// Can be used to ensure that GpuAcc is supported on a device. |
| 69 | JNIEXPORT jboolean |
| 70 | JNICALL Java_com_arm_armnn_delegate_ArmnnUtils_IsGpuAccSupported(JNIEnv* env, jclass clazz) |
| 71 | { |
| 72 | #if defined(ARMCOMPUTECL_ENABLED) |
| 73 | cl::Device device = cl::Device::getDefault(); |
| 74 | char device_name[32]; |
| 75 | cl_int err = clGetDeviceInfo(device.get(), CL_DEVICE_NAME, sizeof(device_name), &device_name, NULL); |
| 76 | if (err != CL_SUCCESS) |
| 77 | { |
| 78 | return false; |
| 79 | } |
| 80 | // search for "Mali" in the devices name |
| 81 | if (strstr(device_name, "Mali")) |
| 82 | { |
| 83 | return true; |
| 84 | } |
| 85 | #endif |
| 86 | return false; |
| 87 | } |
| 88 | |
| 89 | /// Returns true if the current device supports Neon instructions. |
| 90 | /// Can be used to ensure the CpuAcc backend is supported. |
| 91 | JNIEXPORT jboolean |
| 92 | JNICALL Java_com_arm_armnn_delegate_ArmnnUtils_IsNeonDetected(JNIEnv* env, jclass clazz) |
| 93 | { |
| 94 | return armnn::NeonDetected(); |
| 95 | } |
| 96 | |
| 97 | } |
| 98 | |