| /* |
| * Copyright (C) 2020 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. |
| */ |
| |
| #include <assert.h> |
| #include <stdint.h> |
| |
| #include <system/audio.h> |
| |
| // Ensure that bit mask enum types have 32-bit size. |
| // There is a lot of code that assumes this. |
| |
| // Note that audio_devices_t is not a pure mask type since R, |
| // however there is legacy code which can mix its usage with uint32_t. |
| |
| #define AUDIO_ENUM_MASKS_LIST(V) \ |
| V(audio_channel_mask_t) \ |
| V(audio_channel_representation_t) \ |
| V(audio_devices_t) \ |
| V(audio_flags_mask_t) \ |
| V(audio_gain_mode_t) \ |
| V(audio_input_flags_t) \ |
| V(audio_output_flags_t) |
| |
| #define AUDIO_ASSERT_ENUM_MASK_SIZE(t) \ |
| static_assert(sizeof(t) == sizeof(uint32_t), "The size of \'" #t "\' type must be 32 bits"); |
| AUDIO_ENUM_MASKS_LIST(AUDIO_ASSERT_ENUM_MASK_SIZE); |
| #undef AUDIO_ASSERT_ENUM_MASK_SIZE |
| #undef AUDIO_ENUM_MASKS_LIST |