diff options
Diffstat (limited to 'src/ipa/raspberrypi/controller/rpi/agc.cpp')
| -rw-r--r-- | src/ipa/raspberrypi/controller/rpi/agc.cpp | 22 |
1 files changed, 11 insertions, 11 deletions
diff --git a/src/ipa/raspberrypi/controller/rpi/agc.cpp b/src/ipa/raspberrypi/controller/rpi/agc.cpp index 37c5a269..8c1cd8b2 100644 --- a/src/ipa/raspberrypi/controller/rpi/agc.cpp +++ b/src/ipa/raspberrypi/controller/rpi/agc.cpp @@ -28,17 +28,17 @@ LOG_DEFINE_CATEGORY(RPiAgc) #define NAME "rpi.agc" -#define PIPELINE_BITS 13 /* seems to be a 13-bit pipeline */ +static constexpr unsigned int PipelineBits = 13; /* seems to be a 13-bit pipeline */ void AgcMeteringMode::read(boost::property_tree::ptree const ¶ms) { int num = 0; for (auto &p : params.get_child("weights")) { - if (num == AGC_STATS_SIZE) + if (num == AgcStatsSize) LOG(RPiAgc, Fatal) << "AgcConfig: too many weights"; weights[num++] = p.second.get_value<double>(); } - if (num != AGC_STATS_SIZE) + if (num != AgcStatsSize) LOG(RPiAgc, Fatal) << "AgcConfig: insufficient weights"; } @@ -525,11 +525,11 @@ static double computeInitialY(bcm2835_isp_stats *stats, AwbStatus const &awb, * "average" metering (i.e. all pixels equally important). */ double rSum = 0, gSum = 0, bSum = 0, pixelSum = 0; - for (int i = 0; i < AGC_STATS_SIZE; i++) { + for (unsigned int i = 0; i < AgcStatsSize; i++) { double counted = regions[i].counted; - double rAcc = std::min(regions[i].r_sum * gain, ((1 << PIPELINE_BITS) - 1) * counted); - double gAcc = std::min(regions[i].g_sum * gain, ((1 << PIPELINE_BITS) - 1) * counted); - double bAcc = std::min(regions[i].b_sum * gain, ((1 << PIPELINE_BITS) - 1) * counted); + double rAcc = std::min(regions[i].r_sum * gain, ((1 << PipelineBits) - 1) * counted); + double gAcc = std::min(regions[i].g_sum * gain, ((1 << PipelineBits) - 1) * counted); + double bAcc = std::min(regions[i].b_sum * gain, ((1 << PipelineBits) - 1) * counted); rSum += rAcc * weights[i]; gSum += gAcc * weights[i]; bSum += bAcc * weights[i]; @@ -542,7 +542,7 @@ static double computeInitialY(bcm2835_isp_stats *stats, AwbStatus const &awb, double ySum = rSum * awb.gainR * .299 + gSum * awb.gainG * .587 + bSum * awb.gainB * .114; - return ySum / pixelSum / (1 << PIPELINE_BITS); + return ySum / pixelSum / (1 << PipelineBits); } /* @@ -553,13 +553,13 @@ static double computeInitialY(bcm2835_isp_stats *stats, AwbStatus const &awb, * (contrived) cases. */ -#define EV_GAIN_Y_TARGET_LIMIT 0.9 +static constexpr double EvGainYTargetLimit = 0.9; static double constraintComputeGain(AgcConstraint &c, Histogram &h, double lux, double evGain, double &targetY) { targetY = c.yTarget.eval(c.yTarget.domain().clip(lux)); - targetY = std::min(EV_GAIN_Y_TARGET_LIMIT, targetY * evGain); + targetY = std::min(EvGainYTargetLimit, targetY * evGain); double iqm = h.interQuantileMean(c.qLo, c.qHi); return (targetY * NUM_HISTOGRAM_BINS) / iqm; } @@ -578,7 +578,7 @@ void Agc::computeGain(bcm2835_isp_stats *statistics, Metadata *imageMetadata, * that we consider the histogram constraints. */ targetY = config_.yTarget.eval(config_.yTarget.domain().clip(lux.lux)); - targetY = std::min(EV_GAIN_Y_TARGET_LIMIT, targetY * evGain); + targetY = std::min(EvGainYTargetLimit, targetY * evGain); /* * Do this calculation a few times as brightness increase can be |