1 /* 2 * Copyright 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 #ifndef ANDROID_GRALLOCUSAGE_GRALLOC_USAGE_CONVERSION_H 18 #define ANDROID_GRALLOCUSAGE_GRALLOC_USAGE_CONVERSION_H 1 19 20 #include <stdint.h> 21 22 #ifdef __cplusplus 23 extern "C" { 24 #endif 25 26 // Conversion functions are out-of-line so that users don't have to be exposed to 27 // android/hardware/graphics/allocator/2.0/types.h and link against 28 // android.hardware.graphics.allocator (at) 2.0 to get that in their search path. 29 30 // Convert a 32-bit gralloc0 usage mask to a producer/consumer pair of 64-bit usage masks as used 31 // by android.hardware.graphics.allocator (at) 2.0 (and gralloc1). This conversion properly handles the 32 // mismatch between a.h.g.allocator (at) 2.0's CPU_{READ,WRITE}_OFTEN and gralloc0's 33 // SW_{READ,WRITE}_OFTEN. 34 void android_convertGralloc0To1Usage(int32_t usage, uint64_t* producerUsage, 35 uint64_t* consumerUsage); 36 37 // Convert a producer/consumer pair of 64-bit usage masks as used by 38 // android.hardware.graphics.allocator (at) 2.0 (and gralloc1) to a 32-bit gralloc0 usage mask. This 39 // conversion properly handles the mismatch between a.h.g.allocator (at) 2.0's CPU_{READ,WRITE}_OFTEN 40 // and gralloc0's SW_{READ,WRITE}_OFTEN. 41 int32_t android_convertGralloc1To0Usage(uint64_t producerUsage, uint64_t consumerUsage); 42 43 #ifdef __cplusplus 44 } 45 #endif 46 47 #endif // ANDROID_GRALLOCUSAGE_GRALLOC_USAGE_CONVERSION_H 48
