@@ -91,24 +91,22 @@ void Ccm::prepare(IPAContext &context, const uint32_t frame,
const unsigned int ct = context.activeState.awb.temperatureK;
/* Change CCM only on saturation or bigger temperature changes. */
- if (frame > 0 &&
- utils::abs_diff(ct, lastCt_) < kTemperatureThreshold &&
- saturation == lastSaturation_) {
- frameContext.ccm = context.activeState.ccm;
- return;
+ if (frame == 0 ||
+ utils::abs_diff(ct, lastCt_) >= kTemperatureThreshold ||
+ saturation != lastSaturation_) {
+ currentCcm_ = ccm_.getInterpolated(ct);
+ if (saturation)
+ applySaturation(currentCcm_, saturation.value());
+ lastCt_ = ct;
+ lastSaturation_ = saturation;
+ context.activeState.matrixChanged = true;
}
- lastCt_ = ct;
- lastSaturation_ = saturation;
- Matrix<float, 3, 3> ccm = ccm_.getInterpolated(ct);
- if (saturation)
- applySaturation(ccm, saturation.value());
-
- context.activeState.combinedMatrix = ccm;
- context.activeState.ccm = ccm;
+ context.activeState.combinedMatrix =
+ currentCcm_ * context.activeState.combinedMatrix;
+ context.activeState.ccm = currentCcm_;
frameContext.saturation = saturation;
- context.activeState.matrixChanged = true;
- frameContext.ccm = ccm;
+ frameContext.ccm = currentCcm_;
}
void Ccm::process([[maybe_unused]] IPAContext &context,
@@ -47,6 +47,7 @@ private:
unsigned int lastCt_;
std::optional<float> lastSaturation_;
Interpolator<Matrix<float, 3, 3>> ccm_;
+ Matrix<float, 3, 3> currentCcm_;
};
} /* namespace ipa::soft::algorithms */
@@ -296,6 +296,8 @@ void IPASoftSimple::queueRequest(const uint32_t frame, const ControlList &contro
void IPASoftSimple::computeParams(const uint32_t frame)
{
+ context_.activeState.combinedMatrix = Matrix<float, 3, 3>::identity();
+
IPAFrameContext &frameContext = context_.frameContexts.get(frame);
for (auto const &algo : algorithms())
algo->prepare(context_, frame, frameContext, params_);
The combined matrix must be reset to the initial value before each frame is prepared. This must be done outside algorithms because any of the algorithms may be disabled while the matrix must be always initialised. Let's initialise the combined matrix to the identity matrix (which keeps the pixel values unchanged) in software ISP just before calling `prepare' on the algorithms. Matrix updates can no longer be skipped in ccm.cpp, otherwise the CCM won't be applied if there is no temperature or saturation change. Signed-off-by: Milan Zamazal <mzamazal@redhat.com> --- src/ipa/simple/algorithms/ccm.cpp | 28 +++++++++++++--------------- src/ipa/simple/algorithms/ccm.h | 1 + src/ipa/simple/soft_simple.cpp | 2 ++ 3 files changed, 16 insertions(+), 15 deletions(-)