98 lines
3.2 KiB
C++
98 lines
3.2 KiB
C++
/*
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* Copyright (C) 2019 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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//#define LOG_NDEBUG 0
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#define LOG_TAG "EmulatedTorchState"
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#include "EmulatedTorchState.h"
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#include <log/log.h>
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namespace android {
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using android::google_camera_hal::TorchModeStatus;
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status_t EmulatedTorchState::SetTorchMode(TorchMode mode) {
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std::lock_guard<std::mutex> lock(mutex_);
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if (camera_open_) {
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ALOGE("%s: Camera device open, torch cannot be controlled using this API!",
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__FUNCTION__);
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return UNKNOWN_ERROR;
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}
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torch_status_ = (mode == TorchMode::kOn) ? TorchModeStatus::kAvailableOn : TorchModeStatus::kAvailableOff;
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if (mode == TorchMode::kOff && support_torch_strength_control_) {
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new_torch_strength_level_ = default_level_;
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ALOGV("%s: Turning torch OFF so reset the torch strength to default level:%d",
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__FUNCTION__, default_level_);
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}
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torch_cb_(camera_id_, (mode == TorchMode::kOn)
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? TorchModeStatus::kAvailableOn
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: TorchModeStatus::kAvailableOff);
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return OK;
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}
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status_t EmulatedTorchState::TurnOnTorchWithStrengthLevel(int32_t torch_strength) {
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std::lock_guard<std::mutex> lock(mutex_);
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if (camera_open_) {
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ALOGE("%s: Camera device open, torch cannot be controlled using this API!",
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__FUNCTION__);
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return UNKNOWN_ERROR;
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}
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new_torch_strength_level_ = torch_strength;
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// If the torch mode is OFF and device is available, torch will be turned ON.
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// torch_strength value should be greater than 1.
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if (torch_status_ != TorchModeStatus::kAvailableOn && torch_strength > 1) {
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torch_status_ = TorchModeStatus::kAvailableOn;
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ALOGV("Changed the torch status to: %d", torch_status_);
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torch_cb_(camera_id_, TorchModeStatus::kAvailableOn);
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}
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ALOGV("%s: Torch strength level successfully set to %d", __FUNCTION__, torch_strength);
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return OK;
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}
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void EmulatedTorchState::AcquireFlashHw() {
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std::lock_guard<std::mutex> lock(mutex_);
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camera_open_ = true;
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torch_cb_(camera_id_, TorchModeStatus::kNotAvailable);
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}
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void EmulatedTorchState::ReleaseFlashHw() {
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std::lock_guard<std::mutex> lock(mutex_);
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camera_open_ = false;
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torch_cb_(camera_id_, TorchModeStatus::kAvailableOff);
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}
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int32_t EmulatedTorchState::GetTorchStrengthLevel() {
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std::lock_guard<std::mutex> lock(mutex_);
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return new_torch_strength_level_;
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}
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void EmulatedTorchState::InitializeTorchDefaultLevel(int32_t default_level) {
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std::lock_guard<std::mutex> lock(mutex_);
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default_level_ = default_level;
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}
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void EmulatedTorchState::InitializeSupportTorchStrengthLevel(bool is_torch_strength_control_supported) {
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std::lock_guard<std::mutex> lock(mutex_);
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support_torch_strength_control_ = is_torch_strength_control_supported;
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}
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} // namespace android
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