1 /*
2 * Copyright (C) 2022 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include "HardwareBufferHelpers.h"
18
19 #include <dlfcn.h>
20 #include <log/log.h>
21
22 #ifdef __ANDROID__
23 typedef AHardwareBuffer* (*AHB_from_HB)(JNIEnv*, jobject);
24 typedef jobject (*AHB_to_HB)(JNIEnv*, AHardwareBuffer*);
25 static AHB_from_HB fromHardwareBuffer = nullptr;
26 static AHB_to_HB toHardwareBuffer = nullptr;
27 #endif
28
init()29 void android::uirenderer::HardwareBufferHelpers::init() {
30 #ifdef __ANDROID__ // Layoutlib does not support graphic buffer or parcel
31 void* handle_ = dlopen("libandroid.so", RTLD_NOW | RTLD_NODELETE);
32 fromHardwareBuffer = (AHB_from_HB)dlsym(handle_, "AHardwareBuffer_fromHardwareBuffer");
33 LOG_ALWAYS_FATAL_IF(fromHardwareBuffer == nullptr,
34 "Failed to find required symbol AHardwareBuffer_fromHardwareBuffer!");
35
36 toHardwareBuffer = (AHB_to_HB)dlsym(handle_, "AHardwareBuffer_toHardwareBuffer");
37 LOG_ALWAYS_FATAL_IF(toHardwareBuffer == nullptr,
38 " Failed to find required symbol AHardwareBuffer_toHardwareBuffer!");
39 #endif
40 }
41
AHardwareBuffer_fromHardwareBuffer(JNIEnv * env,jobject hardwarebuffer)42 AHardwareBuffer* android::uirenderer::HardwareBufferHelpers::AHardwareBuffer_fromHardwareBuffer(
43 JNIEnv* env, jobject hardwarebuffer) {
44 #ifdef __ANDROID__
45 LOG_ALWAYS_FATAL_IF(fromHardwareBuffer == nullptr,
46 "Failed to find symbol AHardwareBuffer_fromHardwareBuffer, did you forget "
47 "to call HardwareBufferHelpers::init?");
48 return fromHardwareBuffer(env, hardwarebuffer);
49 #else
50 ALOGE("ERROR attempting to invoke AHardwareBuffer_fromHardwareBuffer on non Android "
51 "configuration");
52 return nullptr;
53 #endif
54 }
55
AHardwareBuffer_toHardwareBuffer(JNIEnv * env,AHardwareBuffer * ahardwarebuffer)56 jobject android::uirenderer::HardwareBufferHelpers::AHardwareBuffer_toHardwareBuffer(
57 JNIEnv* env, AHardwareBuffer* ahardwarebuffer) {
58 #ifdef __ANDROID__
59 LOG_ALWAYS_FATAL_IF(toHardwareBuffer == nullptr,
60 "Failed to find symbol AHardwareBuffer_toHardwareBuffer, did you forget to "
61 "call HardwareBufferHelpers::init?");
62 return toHardwareBuffer(env, ahardwarebuffer);
63 #else
64 ALOGE("ERROR attempting to invoke AHardwareBuffer_toHardwareBuffer on non Android "
65 "configuration");
66 return nullptr;
67 #endif
68 }