diff options
| -rw-r--r-- | src/ipa/ipu3/algorithms/tone_mapping.cpp | 30 |
1 files changed, 29 insertions, 1 deletions
diff --git a/src/ipa/ipu3/algorithms/tone_mapping.cpp b/src/ipa/ipu3/algorithms/tone_mapping.cpp index fcd22d0b..2040eda5 100644 --- a/src/ipa/ipu3/algorithms/tone_mapping.cpp +++ b/src/ipa/ipu3/algorithms/tone_mapping.cpp @@ -10,10 +10,22 @@ #include <cmath> #include <string.h> +/** + * \file tone_mapping.h + */ + namespace libcamera { namespace ipa::ipu3::algorithms { +/** + * \class ToneMapping + * \brief A class to handle tone mapping based on gamma + * + * This algorithm improves the image dynamic using a look-up table which is + * generated based on a gamma parameter. + */ + ToneMapping::ToneMapping() : gamma_(1.0) { @@ -35,6 +47,14 @@ int ToneMapping::configure(IPAContext &context, return 0; } +/** + * \brief Fill in the parameter structure, and enable gamma control + * \param context The shared IPA context + * \param params The IPU3 parameters + * + * Populate the IPU3 parameter structure with our tone mapping look up table and + * enable the gamma control module in the processing blocks. + */ void ToneMapping::prepare([[maybe_unused]] IPAContext &context, ipu3_uapi_params *params) { @@ -49,7 +69,15 @@ void ToneMapping::prepare([[maybe_unused]] IPAContext &context, params->acc_param.gamma.gc_ctrl.enable = 1; } -void ToneMapping::process([[maybe_unused]] IPAContext &context, +/** + * \brief Calculate the tone mapping look up table + * \param context The shared IPA context + * \param stats The IPU3 statistics and ISP results + * + * The tone mapping look up table is generated as an inverse power curve from + * our gamma setting. + */ +void ToneMapping::process(IPAContext &context, [[maybe_unused]] const ipu3_uapi_stats_3a *stats) { /* |