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