ipa: raspberrypi: Return an error code from Algorithm::read()

When encountering errors, the Algorithm::read() function either uses
LOG(Fatal) or throws exceptions from the boost property_tree functions.
To prepare for replacing boost JSON parse with the YamlParser class,
give the Algorithm::read() function the ability to return an error code,
and propagate it all the way to the IPA module init() function.

All algorithm classes return a hardcoded 0 value for now, subsequent
commits will change that.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Naushir Patuck <naush@raspberrypi.com>
Tested-by: Naushir Patuck <naush@raspberrypi.com>
This commit is contained in:
Laurent Pinchart 2022-07-26 02:36:38 +03:00
parent 0c84c67e39
commit f357b1bf6e
31 changed files with 151 additions and 75 deletions

View file

@ -30,7 +30,7 @@ LOG_DEFINE_CATEGORY(RPiAgc)
static constexpr unsigned int PipelineBits = 13; /* seems to be a 13-bit pipeline */
void AgcMeteringMode::read(boost::property_tree::ptree const &params)
int AgcMeteringMode::read(boost::property_tree::ptree const &params)
{
int num = 0;
for (auto &p : params.get_child("weights")) {
@ -40,6 +40,7 @@ void AgcMeteringMode::read(boost::property_tree::ptree const &params)
}
if (num != AgcStatsSize)
LOG(RPiAgc, Fatal) << "AgcMeteringMode: insufficient weights";
return 0;
}
static std::string
@ -73,7 +74,7 @@ static int readList(std::vector<Duration> &list,
return list.size();
}
void AgcExposureMode::read(boost::property_tree::ptree const &params)
int AgcExposureMode::read(boost::property_tree::ptree const &params)
{
int numShutters = readList(shutter, params.get_child("shutter"));
int numAgs = readList(gain, params.get_child("gain"));
@ -83,6 +84,7 @@ void AgcExposureMode::read(boost::property_tree::ptree const &params)
if (numShutters != numAgs)
LOG(RPiAgc, Fatal)
<< "AgcExposureMode: expect same number of exposure and gain entries in exposure profile";
return 0;
}
static std::string
@ -100,7 +102,7 @@ readExposureModes(std::map<std::string, AgcExposureMode> &exposureModes,
return first;
}
void AgcConstraint::read(boost::property_tree::ptree const &params)
int AgcConstraint::read(boost::property_tree::ptree const &params)
{
std::string boundString = params.get<std::string>("bound", "");
transform(boundString.begin(), boundString.end(),
@ -110,7 +112,7 @@ void AgcConstraint::read(boost::property_tree::ptree const &params)
bound = boundString == "UPPER" ? Bound::UPPER : Bound::LOWER;
qLo = params.get<double>("q_lo");
qHi = params.get<double>("q_hi");
yTarget.read(params.get_child("y_target"));
return yTarget.read(params.get_child("y_target"));
}
static AgcConstraintMode
@ -137,13 +139,17 @@ static std::string readConstraintModes(std::map<std::string, AgcConstraintMode>
return first;
}
void AgcConfig::read(boost::property_tree::ptree const &params)
int AgcConfig::read(boost::property_tree::ptree const &params)
{
LOG(RPiAgc, Debug) << "AgcConfig";
defaultMeteringMode = readMeteringModes(meteringModes, params.get_child("metering_modes"));
defaultExposureMode = readExposureModes(exposureModes, params.get_child("exposure_modes"));
defaultConstraintMode = readConstraintModes(constraintModes, params.get_child("constraint_modes"));
yTarget.read(params.get_child("y_target"));
int ret = yTarget.read(params.get_child("y_target"));
if (ret)
return ret;
speed = params.get<double>("speed", 0.2);
startupFrames = params.get<uint16_t>("startup_frames", 10);
convergenceFrames = params.get<unsigned int>("convergence_frames", 6);
@ -152,6 +158,7 @@ void AgcConfig::read(boost::property_tree::ptree const &params)
/* Start with quite a low value as ramping up is easier than ramping down. */
defaultExposureTime = params.get<double>("default_exposure_time", 1000) * 1us;
defaultAnalogueGain = params.get<double>("default_analogueGain", 1.0);
return 0;
}
Agc::ExposureValues::ExposureValues()
@ -182,10 +189,14 @@ char const *Agc::name() const
return NAME;
}
void Agc::read(boost::property_tree::ptree const &params)
int Agc::read(boost::property_tree::ptree const &params)
{
LOG(RPiAgc, Debug) << "Agc";
config_.read(params);
int ret = config_.read(params);
if (ret)
return ret;
/*
* Set the config's defaults (which are the first ones it read) as our
* current modes, until someone changes them. (they're all known to
@ -200,6 +211,7 @@ void Agc::read(boost::property_tree::ptree const &params)
/* Set up the "last shutter/gain" values, in case AGC starts "disabled". */
status_.shutterTime = config_.defaultExposureTime;
status_.analogueGain = config_.defaultAnalogueGain;
return 0;
}
bool Agc::isPaused() const