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 #ifndef ANDROID_PRIVATE_NATIVE_AHARDWARE_BUFFER_HELPERS_H 17 #define ANDROID_PRIVATE_NATIVE_AHARDWARE_BUFFER_HELPERS_H 18 /* 19 * This file contains utility functions related to AHardwareBuffer, mostly to 20 * convert to/from HAL formats. 21 * 22 * These are PRIVATE methods, so this file can NEVER appear in a public NDK 23 * header. They are used by higher level libraries such as core/jni. 24 */ 25 #include <stdint.h> 26 struct AHardwareBuffer; 27 struct ANativeWindowBuffer; 28 namespace android { 29 // whether this AHardwareBuffer format is valid 30 bool AHardwareBuffer_isValidPixelFormat(uint32_t ahardwarebuffer_format); 31 // convert AHardwareBuffer format to HAL format (note: this is a no-op) 32 uint32_t AHardwareBuffer_convertFromPixelFormat(uint32_t format); 33 // convert HAL format to AHardwareBuffer format (note: this is a no-op) 34 uint32_t AHardwareBuffer_convertToPixelFormat(uint32_t format); 35 // convert AHardwareBuffer usage bits to HAL usage bits (note: this is a no-op) 36 uint64_t AHardwareBuffer_convertFromGrallocUsageBits(uint64_t usage); 37 // convert HAL usage bits to AHardwareBuffer usage bits (note: this is a no-op) 38 uint64_t AHardwareBuffer_convertToGrallocUsageBits(uint64_t usage); 39 class GraphicBuffer; 40 const GraphicBuffer* AHardwareBuffer_to_GraphicBuffer(const AHardwareBuffer* buffer); 41 GraphicBuffer* AHardwareBuffer_to_GraphicBuffer(AHardwareBuffer* buffer); 42 const ANativeWindowBuffer* AHardwareBuffer_to_ANativeWindowBuffer(const AHardwareBuffer* buffer); 43 ANativeWindowBuffer* AHardwareBuffer_to_ANativeWindowBuffer(AHardwareBuffer* buffer); 44 AHardwareBuffer* AHardwareBuffer_from_GraphicBuffer(GraphicBuffer* buffer); 45 } // namespace android 46 #endif // ANDROID_PRIVATE_NATIVE_AHARDWARE_BUFFER_HELPERS_H 47