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/*
* Copyright 2017 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef ANDROID_GRALLOCUSAGE_GRALLOC_USAGE_CONVERSION_H
#define ANDROID_GRALLOCUSAGE_GRALLOC_USAGE_CONVERSION_H 1
#include <stdint.h>
#ifdef __cplusplus
extern "C" {
#endif
// Conversion functions are out-of-line so that users don't have to be exposed to
// android/hardware/graphics/allocator/2.0/types.h and link against
// android.hardware.graphics.allocator@2.0 to get that in their search path.
// Convert a 32-bit gralloc0 usage mask to a producer/consumer pair of 64-bit usage masks as used
// by android.hardware.graphics.allocator@2.0 (and gralloc1). This conversion properly handles the
// mismatch between a.h.g.allocator@2.0's CPU_{READ,WRITE}_OFTEN and gralloc0's
// SW_{READ,WRITE}_OFTEN.
void android_convertGralloc0To1Usage(int32_t usage, uint64_t* producerUsage,
uint64_t* consumerUsage);
// Convert a producer/consumer pair of 64-bit usage masks as used by
// android.hardware.graphics.allocator@2.0 (and gralloc1) to a 32-bit gralloc0 usage mask. This
// conversion properly handles the mismatch between a.h.g.allocator@2.0's CPU_{READ,WRITE}_OFTEN
// and gralloc0's SW_{READ,WRITE}_OFTEN.
int32_t android_convertGralloc1To0Usage(uint64_t producerUsage, uint64_t consumerUsage);
#ifdef __cplusplus
}
#endif
#endif // ANDROID_GRALLOCUSAGE_GRALLOC_USAGE_CONVERSION_H
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