diff options
Diffstat (limited to 'src/ipa/libipa/camera_sensor_helper.cpp')
| -rw-r--r-- | src/ipa/libipa/camera_sensor_helper.cpp | 96 |
1 files changed, 55 insertions, 41 deletions
diff --git a/src/ipa/libipa/camera_sensor_helper.cpp b/src/ipa/libipa/camera_sensor_helper.cpp index c953def0..714cd86f 100644 --- a/src/ipa/libipa/camera_sensor_helper.cpp +++ b/src/ipa/libipa/camera_sensor_helper.cpp @@ -58,11 +58,13 @@ namespace ipa { */ uint32_t CameraSensorHelper::gainCode(double gain) const { - ASSERT(analogueGainConstants_.m0 == 0 || analogueGainConstants_.m1 == 0); - ASSERT(analogueGainConstants_.type == AnalogueGainLinear); + const AnalogueGainConstants &k = gainConstants_; - return (analogueGainConstants_.c0 - analogueGainConstants_.c1 * gain) / - (analogueGainConstants_.m1 * gain - analogueGainConstants_.m0); + ASSERT(gainType_ == AnalogueGainLinear); + ASSERT(k.linear.m0 == 0 || k.linear.m1 == 0); + + return (k.linear.c0 - k.linear.c1 * gain) / + (k.linear.m1 * gain - k.linear.m0); } /** @@ -80,11 +82,13 @@ uint32_t CameraSensorHelper::gainCode(double gain) const */ double CameraSensorHelper::gain(uint32_t gainCode) const { - ASSERT(analogueGainConstants_.m0 == 0 || analogueGainConstants_.m1 == 0); - ASSERT(analogueGainConstants_.type == AnalogueGainLinear); + const AnalogueGainConstants &k = gainConstants_; + + ASSERT(gainType_ == AnalogueGainLinear); + ASSERT(k.linear.m0 == 0 || k.linear.m1 == 0); - return (analogueGainConstants_.m0 * static_cast<double>(gainCode) + analogueGainConstants_.c0) / - (analogueGainConstants_.m1 * static_cast<double>(gainCode) + analogueGainConstants_.c1); + return (k.linear.m0 * static_cast<double>(gainCode) + k.linear.c0) / + (k.linear.m1 * static_cast<double>(gainCode) + k.linear.c1); } /** @@ -128,41 +132,44 @@ double CameraSensorHelper::gain(uint32_t gainCode) const */ /** - * \struct CameraSensorHelper::AnalogueGainConstants - * \brief Analogue gain constants used for gain calculation - */ - -/** - * \var CameraSensorHelper::AnalogueGainConstants::type - * \brief Analogue gain calculation mode - */ - -/** - * \var CameraSensorHelper::AnalogueGainConstants::m0 - * \brief Constant used in the analogue Gain coding/decoding + * \struct CameraSensorHelper::AnalogueGainLinearConstants + * \brief Analogue gain constants for the linear gain model + * + * \var CameraSensorHelper::AnalogueGainLinearConstants::m0 + * \brief Constant used in the linear gain coding/decoding * * \note Either m0 or m1 shall be zero. + * + * \var CameraSensorHelper::AnalogueGainLinearConstants::c0 + * \brief Constant used in the linear gain coding/decoding + * + * \var CameraSensorHelper::AnalogueGainLinearConstants::m1 + * \brief Constant used in the linear gain coding/decoding + * + * \note Either m0 or m1 shall be zero. + * + * \var CameraSensorHelper::AnalogueGainLinearConstants::c1 + * \brief Constant used in the linear gain coding/decoding */ /** - * \var CameraSensorHelper::AnalogueGainConstants::c0 - * \brief Constant used in the analogue gain coding/decoding - */ - -/** - * \var CameraSensorHelper::AnalogueGainConstants::m1 - * \brief Constant used in the analogue gain coding/decoding + * \struct CameraSensorHelper::AnalogueGainConstants + * \brief Analogue gain model constants * - * \note Either m0 or m1 shall be zero. + * This union stores the constants used to calculate the analogue gain. The + * CameraSensorHelper::gainType_ variable selects which union member is valid. + * + * \var CameraSensorHelper::AnalogueGainConstants::linear + * \brief Constants for the linear gain model */ /** - * \var CameraSensorHelper::AnalogueGainConstants::c1 - * \brief Constant used in the analogue gain coding/decoding + * \var CameraSensorHelper::gainType_ + * \brief The analogue gain model type */ /** - * \var CameraSensorHelper::analogueGainConstants_ + * \var CameraSensorHelper::gainConstants_ * \brief The analogue gain parameters used for calculation * * The analogue gain is calculated through a formula, and its parameters are @@ -290,7 +297,8 @@ class CameraSensorHelperImx219 : public CameraSensorHelper public: CameraSensorHelperImx219() { - analogueGainConstants_ = { AnalogueGainLinear, 0, 256, -1, 256 }; + gainType_ = AnalogueGainLinear; + gainConstants_.linear = { 0, 256, -1, 256 }; } }; REGISTER_CAMERA_SENSOR_HELPER("imx219", CameraSensorHelperImx219) @@ -298,10 +306,11 @@ REGISTER_CAMERA_SENSOR_HELPER("imx219", CameraSensorHelperImx219) class CameraSensorHelperImx258 : public CameraSensorHelper { public: - CameraSensorHelperImx258() - { - analogueGainConstants_ = { AnalogueGainLinear, 0, 512, -1, 512 }; - } + CameraSensorHelperImx258() + { + gainType_ = AnalogueGainLinear; + gainConstants_.linear = { 0, 512, -1, 512 }; + } }; REGISTER_CAMERA_SENSOR_HELPER("imx258", CameraSensorHelperImx258) @@ -310,7 +319,8 @@ class CameraSensorHelperOv2740 : public CameraSensorHelper public: CameraSensorHelperOv2740() { - analogueGainConstants_ = { AnalogueGainLinear, 1, 0, 0, 128 }; + gainType_ = AnalogueGainLinear; + gainConstants_.linear = { 1, 0, 0, 128 }; } }; REGISTER_CAMERA_SENSOR_HELPER("ov2740", CameraSensorHelperOv2740) @@ -320,7 +330,8 @@ class CameraSensorHelperOv5670 : public CameraSensorHelper public: CameraSensorHelperOv5670() { - analogueGainConstants_ = { AnalogueGainLinear, 1, 0, 0, 128 }; + gainType_ = AnalogueGainLinear; + gainConstants_.linear = { 1, 0, 0, 128 }; } }; REGISTER_CAMERA_SENSOR_HELPER("ov5670", CameraSensorHelperOv5670) @@ -330,7 +341,8 @@ class CameraSensorHelperOv5693 : public CameraSensorHelper public: CameraSensorHelperOv5693() { - analogueGainConstants_ = { AnalogueGainLinear, 1, 0, 0, 16 }; + gainType_ = AnalogueGainLinear; + gainConstants_.linear = { 1, 0, 0, 16 }; } }; REGISTER_CAMERA_SENSOR_HELPER("ov5693", CameraSensorHelperOv5693) @@ -340,7 +352,8 @@ class CameraSensorHelperOv8865 : public CameraSensorHelper public: CameraSensorHelperOv8865() { - analogueGainConstants_ = { AnalogueGainLinear, 1, 0, 0, 128 }; + gainType_ = AnalogueGainLinear; + gainConstants_.linear = { 1, 0, 0, 128 }; } }; REGISTER_CAMERA_SENSOR_HELPER("ov8865", CameraSensorHelperOv8865) @@ -350,7 +363,8 @@ class CameraSensorHelperOv13858 : public CameraSensorHelper public: CameraSensorHelperOv13858() { - analogueGainConstants_ = { AnalogueGainLinear, 1, 0, 0, 128 }; + gainType_ = AnalogueGainLinear; + gainConstants_.linear = { 1, 0, 0, 128 }; } }; REGISTER_CAMERA_SENSOR_HELPER("ov13858", CameraSensorHelperOv13858) |