Craig Donner | 1a4d07d | 2017-01-09 13:01:22 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2017 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 | #define LOG_TAG "HardwareBuffer" |
| 18 | |
| 19 | #include "jni.h" |
Steven Moreland | 60cc6c0 | 2017-08-25 15:49:25 -0700 | [diff] [blame] | 20 | #include <nativehelper/JNIHelp.h> |
Craig Donner | 1a4d07d | 2017-01-09 13:01:22 -0800 | [diff] [blame] | 21 | |
| 22 | #include "android_os_Parcel.h" |
| 23 | #include "android/graphics/GraphicsJNI.h" |
| 24 | |
| 25 | #include <android/hardware_buffer.h> |
| 26 | #include <android_runtime/android_hardware_HardwareBuffer.h> |
| 27 | #include <android_runtime/AndroidRuntime.h> |
| 28 | #include <android_runtime/Log.h> |
Mathias Agopian | fee4a98 | 2017-02-09 18:48:21 -0800 | [diff] [blame] | 29 | #include <private/android/AHardwareBufferHelpers.h> |
Craig Donner | 1a4d07d | 2017-01-09 13:01:22 -0800 | [diff] [blame] | 30 | |
| 31 | #include <binder/Parcel.h> |
Mathias Agopian | fee4a98 | 2017-02-09 18:48:21 -0800 | [diff] [blame] | 32 | |
| 33 | #include <ui/GraphicBuffer.h> |
Craig Donner | 1a4d07d | 2017-01-09 13:01:22 -0800 | [diff] [blame] | 34 | #include <private/gui/ComposerService.h> |
| 35 | |
Mathias Agopian | fee4a98 | 2017-02-09 18:48:21 -0800 | [diff] [blame] | 36 | #include <hardware/gralloc1.h> |
Chris Forbes | f2c44a3 | 2017-04-20 11:58:45 -0700 | [diff] [blame] | 37 | #include <grallocusage/GrallocUsageConversion.h> |
Mathias Agopian | fee4a98 | 2017-02-09 18:48:21 -0800 | [diff] [blame] | 38 | |
Craig Donner | 1a4d07d | 2017-01-09 13:01:22 -0800 | [diff] [blame] | 39 | #include "core_jni_helpers.h" |
| 40 | |
| 41 | using namespace android; |
| 42 | |
| 43 | // ---------------------------------------------------------------------------- |
| 44 | // Defines |
| 45 | // ---------------------------------------------------------------------------- |
| 46 | |
| 47 | // Debug |
Craig Donner | 3027095 | 2017-02-16 18:12:16 -0800 | [diff] [blame] | 48 | static constexpr bool kDebugGraphicBuffer = false; |
Craig Donner | 1a4d07d | 2017-01-09 13:01:22 -0800 | [diff] [blame] | 49 | |
| 50 | // ---------------------------------------------------------------------------- |
| 51 | // Types |
| 52 | // ---------------------------------------------------------------------------- |
| 53 | |
| 54 | static struct { |
| 55 | jclass clazz; |
| 56 | jfieldID mNativeObject; |
| 57 | jmethodID ctor; |
| 58 | } gHardwareBufferClassInfo; |
| 59 | |
| 60 | class GraphicBufferWrapper { |
| 61 | public: |
| 62 | explicit GraphicBufferWrapper(const sp<GraphicBuffer>& buffer) |
| 63 | : buffer(buffer) {} |
| 64 | |
| 65 | sp<GraphicBuffer> buffer; |
| 66 | }; |
| 67 | |
Craig Donner | 1a4d07d | 2017-01-09 13:01:22 -0800 | [diff] [blame] | 68 | // ---------------------------------------------------------------------------- |
| 69 | // HardwareBuffer lifecycle |
| 70 | // ---------------------------------------------------------------------------- |
| 71 | |
| 72 | static jlong android_hardware_HardwareBuffer_create(JNIEnv* env, jobject clazz, |
| 73 | jint width, jint height, jint format, jint layers, jlong usage) { |
| 74 | |
Craig Donner | 1a4d07d | 2017-01-09 13:01:22 -0800 | [diff] [blame] | 75 | // TODO: update createGraphicBuffer to take two 64-bit values. |
| 76 | int pixelFormat = android_hardware_HardwareBuffer_convertToPixelFormat(format); |
| 77 | if (pixelFormat == 0) { |
| 78 | if (kDebugGraphicBuffer) { |
| 79 | ALOGW("createGraphicBufferAlloc() invalid pixel format in HardwareBuffer.create()"); |
| 80 | } |
| 81 | return NULL; |
| 82 | } |
Mathias Agopian | 2bd7d98 | 2017-02-27 19:34:45 -0800 | [diff] [blame] | 83 | |
Mathias Agopian | 910ab13 | 2017-04-20 16:36:15 -0700 | [diff] [blame] | 84 | uint64_t grallocUsage = AHardwareBuffer_convertToGrallocUsageBits(usage); |
Mathias Agopian | 2bd7d98 | 2017-02-27 19:34:45 -0800 | [diff] [blame] | 85 | sp<GraphicBuffer> buffer = new GraphicBuffer(width, height, pixelFormat, layers, |
Mathias Agopian | 910ab13 | 2017-04-20 16:36:15 -0700 | [diff] [blame] | 86 | grallocUsage, std::string("HardwareBuffer pid [") + std::to_string(getpid()) +"]"); |
Mathias Agopian | 2bd7d98 | 2017-02-27 19:34:45 -0800 | [diff] [blame] | 87 | status_t error = buffer->initCheck(); |
| 88 | if (error < 0) { |
Craig Donner | 1a4d07d | 2017-01-09 13:01:22 -0800 | [diff] [blame] | 89 | if (kDebugGraphicBuffer) { |
| 90 | ALOGW("createGraphicBuffer() failed in HardwareBuffer.create()"); |
| 91 | } |
| 92 | return NULL; |
| 93 | } |
| 94 | |
| 95 | GraphicBufferWrapper* wrapper = new GraphicBufferWrapper(buffer); |
| 96 | return reinterpret_cast<jlong>(wrapper); |
| 97 | } |
| 98 | |
| 99 | static void destroyWrapper(GraphicBufferWrapper* wrapper) { |
| 100 | delete wrapper; |
| 101 | } |
| 102 | |
Mathias Agopian | fee4a98 | 2017-02-09 18:48:21 -0800 | [diff] [blame] | 103 | static jlong android_hardware_HardwareBuffer_getNativeFinalizer(JNIEnv* env, jobject clazz) { |
Craig Donner | 1a4d07d | 2017-01-09 13:01:22 -0800 | [diff] [blame] | 104 | return static_cast<jlong>(reinterpret_cast<uintptr_t>(&destroyWrapper)); |
| 105 | } |
| 106 | |
| 107 | //---------------------------------------------------------------------------- |
| 108 | // Accessors |
| 109 | // ---------------------------------------------------------------------------- |
| 110 | |
| 111 | static inline GraphicBuffer* GraphicBufferWrapper_to_GraphicBuffer( |
| 112 | jlong nativeObject) { |
| 113 | return reinterpret_cast<GraphicBufferWrapper*>(nativeObject)->buffer.get(); |
| 114 | } |
| 115 | |
| 116 | static jint android_hardware_HardwareBuffer_getWidth(JNIEnv* env, jobject clazz, |
| 117 | jlong nativeObject) { |
| 118 | GraphicBuffer* buffer = GraphicBufferWrapper_to_GraphicBuffer(nativeObject); |
| 119 | return static_cast<jint>(buffer->getWidth()); |
| 120 | } |
| 121 | |
| 122 | static jint android_hardware_HardwareBuffer_getHeight(JNIEnv* env, |
| 123 | jobject clazz, jlong nativeObject) { |
| 124 | GraphicBuffer* buffer = GraphicBufferWrapper_to_GraphicBuffer(nativeObject); |
| 125 | return static_cast<jint>(buffer->getHeight()); |
| 126 | } |
| 127 | |
| 128 | static jint android_hardware_HardwareBuffer_getFormat(JNIEnv* env, |
| 129 | jobject clazz, jlong nativeObject) { |
| 130 | GraphicBuffer* buffer = GraphicBufferWrapper_to_GraphicBuffer(nativeObject); |
| 131 | return static_cast<jint>(android_hardware_HardwareBuffer_convertFromPixelFormat( |
| 132 | buffer->getPixelFormat())); |
| 133 | } |
| 134 | |
| 135 | static jint android_hardware_HardwareBuffer_getLayers(JNIEnv* env, |
| 136 | jobject clazz, jlong nativeObject) { |
| 137 | GraphicBuffer* buffer = GraphicBufferWrapper_to_GraphicBuffer(nativeObject); |
| 138 | return static_cast<jint>(buffer->getLayerCount()); |
| 139 | } |
| 140 | |
| 141 | static jlong android_hardware_HardwareBuffer_getUsage(JNIEnv* env, |
| 142 | jobject clazz, jlong nativeObject) { |
| 143 | GraphicBuffer* buffer = GraphicBufferWrapper_to_GraphicBuffer(nativeObject); |
Mathias Agopian | 910ab13 | 2017-04-20 16:36:15 -0700 | [diff] [blame] | 144 | return AHardwareBuffer_convertFromGrallocUsageBits(buffer->getUsage()); |
Craig Donner | 1a4d07d | 2017-01-09 13:01:22 -0800 | [diff] [blame] | 145 | } |
| 146 | |
| 147 | // ---------------------------------------------------------------------------- |
| 148 | // Serialization |
| 149 | // ---------------------------------------------------------------------------- |
| 150 | |
| 151 | static void android_hardware_HardwareBuffer_write(JNIEnv* env, jobject clazz, |
| 152 | jlong nativeObject, jobject dest) { |
| 153 | GraphicBuffer* buffer = GraphicBufferWrapper_to_GraphicBuffer(nativeObject); |
| 154 | Parcel* parcel = parcelForJavaObject(env, dest); |
| 155 | if (parcel) { |
| 156 | parcel->write(*buffer); |
| 157 | } |
| 158 | } |
| 159 | |
| 160 | static jlong android_hardware_HardwareBuffer_read(JNIEnv* env, jobject clazz, |
| 161 | jobject in) { |
| 162 | Parcel* parcel = parcelForJavaObject(env, in); |
| 163 | if (parcel) { |
| 164 | sp<GraphicBuffer> buffer = new GraphicBuffer(); |
| 165 | parcel->read(*buffer); |
| 166 | return reinterpret_cast<jlong>(new GraphicBufferWrapper(buffer)); |
| 167 | } |
| 168 | |
| 169 | return NULL; |
| 170 | } |
| 171 | |
| 172 | // ---------------------------------------------------------------------------- |
| 173 | // Public functions |
| 174 | // ---------------------------------------------------------------------------- |
| 175 | |
| 176 | namespace android { |
| 177 | |
| 178 | AHardwareBuffer* android_hardware_HardwareBuffer_getNativeHardwareBuffer( |
| 179 | JNIEnv* env, jobject hardwareBufferObj) { |
| 180 | if (env->IsInstanceOf(hardwareBufferObj, gHardwareBufferClassInfo.clazz)) { |
| 181 | GraphicBuffer* buffer = GraphicBufferWrapper_to_GraphicBuffer( |
| 182 | env->GetLongField(hardwareBufferObj, gHardwareBufferClassInfo.mNativeObject)); |
Mathias Agopian | fee4a98 | 2017-02-09 18:48:21 -0800 | [diff] [blame] | 183 | return AHardwareBuffer_from_GraphicBuffer(buffer); |
| 184 | |
Craig Donner | 1a4d07d | 2017-01-09 13:01:22 -0800 | [diff] [blame] | 185 | } else { |
| 186 | return nullptr; |
| 187 | } |
| 188 | } |
| 189 | |
| 190 | jobject android_hardware_HardwareBuffer_createFromAHardwareBuffer( |
| 191 | JNIEnv* env, AHardwareBuffer* hardwareBuffer) { |
Mathias Agopian | fee4a98 | 2017-02-09 18:48:21 -0800 | [diff] [blame] | 192 | GraphicBuffer* buffer = AHardwareBuffer_to_GraphicBuffer(hardwareBuffer); |
Craig Donner | 1a4d07d | 2017-01-09 13:01:22 -0800 | [diff] [blame] | 193 | GraphicBufferWrapper* wrapper = new GraphicBufferWrapper(buffer); |
| 194 | jobject hardwareBufferObj = env->NewObject(gHardwareBufferClassInfo.clazz, |
| 195 | gHardwareBufferClassInfo.ctor, reinterpret_cast<jlong>(wrapper)); |
| 196 | if (hardwareBufferObj == NULL) { |
| 197 | delete wrapper; |
| 198 | if (env->ExceptionCheck()) { |
| 199 | ALOGE("Could not create instance of HardwareBuffer from AHardwareBuffer."); |
| 200 | LOGE_EX(env); |
| 201 | env->ExceptionClear(); |
| 202 | } |
| 203 | return nullptr; |
| 204 | } |
| 205 | return hardwareBufferObj; |
| 206 | } |
| 207 | |
| 208 | uint32_t android_hardware_HardwareBuffer_convertFromPixelFormat(uint32_t format) { |
Mathias Agopian | fee4a98 | 2017-02-09 18:48:21 -0800 | [diff] [blame] | 209 | return AHardwareBuffer_convertFromPixelFormat(format); |
Craig Donner | 1a4d07d | 2017-01-09 13:01:22 -0800 | [diff] [blame] | 210 | } |
| 211 | |
| 212 | uint32_t android_hardware_HardwareBuffer_convertToPixelFormat(uint32_t format) { |
Mathias Agopian | fee4a98 | 2017-02-09 18:48:21 -0800 | [diff] [blame] | 213 | return AHardwareBuffer_convertToPixelFormat(format); |
Craig Donner | 1a4d07d | 2017-01-09 13:01:22 -0800 | [diff] [blame] | 214 | } |
| 215 | |
Mathias Agopian | 910ab13 | 2017-04-20 16:36:15 -0700 | [diff] [blame] | 216 | uint64_t android_hardware_HardwareBuffer_convertToGrallocUsageBits(uint64_t usage) { |
| 217 | return AHardwareBuffer_convertToGrallocUsageBits(usage); |
Craig Donner | 1a4d07d | 2017-01-09 13:01:22 -0800 | [diff] [blame] | 218 | } |
| 219 | |
| 220 | } // namespace android |
| 221 | |
| 222 | // ---------------------------------------------------------------------------- |
| 223 | // JNI Glue |
| 224 | // ---------------------------------------------------------------------------- |
| 225 | |
| 226 | const char* const kClassPathName = "android/hardware/HardwareBuffer"; |
| 227 | |
| 228 | static const JNINativeMethod gMethods[] = { |
Mathias Agopian | fee4a98 | 2017-02-09 18:48:21 -0800 | [diff] [blame] | 229 | { "nCreateHardwareBuffer", "(IIIIJ)J", |
| 230 | (void*) android_hardware_HardwareBuffer_create }, |
| 231 | { "nGetNativeFinalizer", "()J", |
| 232 | (void*) android_hardware_HardwareBuffer_getNativeFinalizer }, |
Craig Donner | 1a4d07d | 2017-01-09 13:01:22 -0800 | [diff] [blame] | 233 | { "nWriteHardwareBufferToParcel", "(JLandroid/os/Parcel;)V", |
| 234 | (void*) android_hardware_HardwareBuffer_write }, |
| 235 | { "nReadHardwareBufferFromParcel", "(Landroid/os/Parcel;)J", |
| 236 | (void*) android_hardware_HardwareBuffer_read }, |
| 237 | |
| 238 | // --------------- @FastNative ---------------------- |
Mathias Agopian | fee4a98 | 2017-02-09 18:48:21 -0800 | [diff] [blame] | 239 | { "nGetWidth", "(J)I", (void*) android_hardware_HardwareBuffer_getWidth }, |
| 240 | { "nGetHeight", "(J)I", (void*) android_hardware_HardwareBuffer_getHeight }, |
| 241 | { "nGetFormat", "(J)I", (void*) android_hardware_HardwareBuffer_getFormat }, |
| 242 | { "nGetLayers", "(J)I", (void*) android_hardware_HardwareBuffer_getLayers }, |
| 243 | { "nGetUsage", "(J)J", (void*) android_hardware_HardwareBuffer_getUsage }, |
Craig Donner | 1a4d07d | 2017-01-09 13:01:22 -0800 | [diff] [blame] | 244 | }; |
| 245 | |
| 246 | int register_android_hardware_HardwareBuffer(JNIEnv* env) { |
| 247 | int err = RegisterMethodsOrDie(env, kClassPathName, gMethods, |
| 248 | NELEM(gMethods)); |
| 249 | |
| 250 | jclass clazz = FindClassOrDie(env, "android/hardware/HardwareBuffer"); |
| 251 | gHardwareBufferClassInfo.clazz = MakeGlobalRefOrDie(env, clazz); |
| 252 | gHardwareBufferClassInfo.mNativeObject = GetFieldIDOrDie(env, |
| 253 | gHardwareBufferClassInfo.clazz, "mNativeObject", "J"); |
| 254 | gHardwareBufferClassInfo.ctor = GetMethodIDOrDie(env, |
| 255 | gHardwareBufferClassInfo.clazz, "<init>", "(J)V"); |
| 256 | |
| 257 | return err; |
| 258 | } |