From a90bc0e7b24516379fa18831d3fe9fb88f30bd4e Mon Sep 17 00:00:00 2001 From: Jean-Michel Hautbois Date: Thu, 2 Sep 2021 10:22:33 +0200 Subject: ipa: ipu3: Change Accumulator structure layout The pixel component sums for the Accumulator are inconsistent with other similar structures such as the IPAFrameContext::awb::gains. Group the red, green, and blue sums together in a struct and store them as uint64_t to reduce potential architectural differences. Signed-off-by: Jean-Michel Hautbois Reviewed-by: Kieran Bingham Reviewed-by: Laurent Pinchart --- src/ipa/ipu3/algorithms/awb.cpp | 27 +++++++++++++++------------ src/ipa/ipu3/algorithms/awb.h | 8 +++++--- 2 files changed, 20 insertions(+), 15 deletions(-) (limited to 'src') diff --git a/src/ipa/ipu3/algorithms/awb.cpp b/src/ipa/ipu3/algorithms/awb.cpp index 964d6995..c1a303e2 100644 --- a/src/ipa/ipu3/algorithms/awb.cpp +++ b/src/ipa/ipu3/algorithms/awb.cpp @@ -76,13 +76,16 @@ static constexpr uint32_t kMinGreenLevelInZone = 32; * \var Accumulator::counted * \brief Number of unsaturated cells used to calculate the sums * - * \var Accumulator::rSum + * \var Accumulator::sum + * \brief A structure containing the average red, green and blue sums + * + * \var Accumulator::sum.red * \brief Sum of the average red values of each unsaturated cell in the zone * - * \var Accumulator::gSum + * \var Accumulator::sum.green * \brief Sum of the average green values of each unsaturated cell in the zone * - * \var Accumulator::bSum + * \var Accumulator::sum.blue * \brief Sum of the average blue values of each unsaturated cell in the zone */ @@ -207,10 +210,10 @@ void Awb::generateZones(std::vector &zones) RGB zone; double counted = awbStats_[i].counted; if (counted >= kMinZonesCounted) { - zone.G = awbStats_[i].gSum / counted; + zone.G = awbStats_[i].sum.green / counted; if (zone.G >= kMinGreenLevelInZone) { - zone.R = awbStats_[i].rSum / counted; - zone.B = awbStats_[i].bSum / counted; + zone.R = awbStats_[i].sum.red / counted; + zone.B = awbStats_[i].sum.blue / counted; zones.push_back(zone); } } @@ -243,9 +246,9 @@ void Awb::generateAwbStats(const ipu3_uapi_stats_3a *stats, /* The cell is not saturated, use the current cell */ awbStats_[awbRegionPosition].counted++; uint32_t greenValue = currentCell->greenRedAvg + currentCell->greenBlueAvg; - awbStats_[awbRegionPosition].gSum += greenValue / 2; - awbStats_[awbRegionPosition].rSum += currentCell->redAvg; - awbStats_[awbRegionPosition].bSum += currentCell->blueAvg; + awbStats_[awbRegionPosition].sum.green += greenValue / 2; + awbStats_[awbRegionPosition].sum.red += currentCell->redAvg; + awbStats_[awbRegionPosition].sum.blue += currentCell->blueAvg; } } } @@ -254,9 +257,9 @@ void Awb::generateAwbStats(const ipu3_uapi_stats_3a *stats, void Awb::clearAwbStats() { for (unsigned int i = 0; i < kAwbStatsSizeX * kAwbStatsSizeY; i++) { - awbStats_[i].bSum = 0; - awbStats_[i].rSum = 0; - awbStats_[i].gSum = 0; + awbStats_[i].sum.blue = 0; + awbStats_[i].sum.red = 0; + awbStats_[i].sum.green = 0; awbStats_[i].counted = 0; } } diff --git a/src/ipa/ipu3/algorithms/awb.h b/src/ipa/ipu3/algorithms/awb.h index ac8ccc84..3385ebe7 100644 --- a/src/ipa/ipu3/algorithms/awb.h +++ b/src/ipa/ipu3/algorithms/awb.h @@ -35,9 +35,11 @@ struct Ipu3AwbCell { struct Accumulator { unsigned int counted; - unsigned long long rSum; - unsigned long long gSum; - unsigned long long bSum; + struct { + uint64_t red; + uint64_t green; + uint64_t blue; + } sum; }; class Awb : public Algorithm -- cgit v1.2.1