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 #ifdef __ANDROID__
20 #include <dlfcn.h>
21 #endif
22 #include <log/log.h>
23
24 #ifdef __ANDROID__
25 typedef AHardwareBuffer* (*AHB_from_HB)(JNIEnv*, jobject);
26 typedef jobject (*AHB_to_HB)(JNIEnv*, AHardwareBuffer*);
27 static AHB_from_HB fromHardwareBuffer = nullptr;
28 static AHB_to_HB toHardwareBuffer = nullptr;
29 #endif
30
init()31 void android::uirenderer::HardwareBufferHelpers::init() {
32 #ifdef __ANDROID__ // Layoutlib does not support graphic buffer or parcel
33 void* handle_ = dlopen("libandroid.so", RTLD_NOW | RTLD_NODELETE);
34 fromHardwareBuffer = (AHB_from_HB)dlsym(handle_, "AHardwareBuffer_fromHardwareBuffer");
35 LOG_ALWAYS_FATAL_IF(fromHardwareBuffer == nullptr,
36 "Failed to find required symbol AHardwareBuffer_fromHardwareBuffer!");
37
38 toHardwareBuffer = (AHB_to_HB)dlsym(handle_, "AHardwareBuffer_toHardwareBuffer");
39 LOG_ALWAYS_FATAL_IF(toHardwareBuffer == nullptr,
40 " Failed to find required symbol AHardwareBuffer_toHardwareBuffer!");
41 #endif
42 }
43
AHardwareBuffer_fromHardwareBuffer(JNIEnv * env,jobject hardwarebuffer)44 AHardwareBuffer* android::uirenderer::HardwareBufferHelpers::AHardwareBuffer_fromHardwareBuffer(
45 JNIEnv* env, jobject hardwarebuffer) {
46 #ifdef __ANDROID__
47 LOG_ALWAYS_FATAL_IF(fromHardwareBuffer == nullptr,
48 "Failed to find symbol AHardwareBuffer_fromHardwareBuffer, did you forget "
49 "to call HardwareBufferHelpers::init?");
50 return fromHardwareBuffer(env, hardwarebuffer);
51 #else
52 ALOGE("ERROR attempting to invoke AHardwareBuffer_fromHardwareBuffer on non Android "
53 "configuration");
54 return nullptr;
55 #endif
56 }
57
AHardwareBuffer_toHardwareBuffer(JNIEnv * env,AHardwareBuffer * ahardwarebuffer)58 jobject android::uirenderer::HardwareBufferHelpers::AHardwareBuffer_toHardwareBuffer(
59 JNIEnv* env, AHardwareBuffer* ahardwarebuffer) {
60 #ifdef __ANDROID__
61 LOG_ALWAYS_FATAL_IF(toHardwareBuffer == nullptr,
62 "Failed to find symbol AHardwareBuffer_toHardwareBuffer, did you forget to "
63 "call HardwareBufferHelpers::init?");
64 return toHardwareBuffer(env, ahardwarebuffer);
65 #else
66 ALOGE("ERROR attempting to invoke AHardwareBuffer_toHardwareBuffer on non Android "
67 "configuration");
68 return nullptr;
69 #endif
70 }