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ipa: ipu3: agc: remove local storage of the grid

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The IPASessionConfiguration now has the grid configuration stored. Use
it at process() call in AGC and pass it as a reference to the private
functions when needed.

Signed-off-by: Jean-Michel Hautbois <jeanmichel.hautbois@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
This commit is contained in:
Jean-Michel Hautbois 2021-08-20 14:02:58 +02:00
parent e991bb2c36
commit b3befe2ef0
2 changed files with 16 additions and 17 deletions
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28
src/ipa/ipu3/algorithms/agc.cpp
View file

@ -57,10 +57,9 @@ Agc::Agc()
{
}
int Agc::configure(IPAContext &context, const IPAConfigInfo &configInfo)
int Agc::configure([[maybe_unused]] IPAContext &context,
const IPAConfigInfo &configInfo)
{
aeGrid_ = context.configuration.grid.bdsGrid;
lineDuration_ = configInfo.sensorInfo.lineLength * 1.0s
/ configInfo.sensorInfo.pixelRate;
maxExposureTime_ = kMaxExposure * lineDuration_;
@ -68,7 +67,8 @@ int Agc::configure(IPAContext &context, const IPAConfigInfo &configInfo)
return 0;
}
void Agc::processBrightness(const ipu3_uapi_stats_3a *stats)
void Agc::processBrightness(const ipu3_uapi_stats_3a *stats,
const ipu3_uapi_grid_config &grid)
{
const struct ipu3_uapi_grid_config statsAeGrid = stats->stats_4a_config.awb_config.grid;
Rectangle aeRegion = { statsAeGrid.x_start,
@ -76,19 +76,19 @@ void Agc::processBrightness(const ipu3_uapi_stats_3a *stats)
static_cast<unsigned int>(statsAeGrid.x_end - statsAeGrid.x_start) + 1,
static_cast<unsigned int>(statsAeGrid.y_end - statsAeGrid.y_start) + 1 };
Point topleft = aeRegion.topLeft();
int topleftX = topleft.x >> aeGrid_.block_width_log2;
int topleftY = topleft.y >> aeGrid_.block_height_log2;
int topleftX = topleft.x >> grid.block_width_log2;
int topleftY = topleft.y >> grid.block_height_log2;
/* Align to the grid cell width and height */
uint32_t startX = topleftX << aeGrid_.block_width_log2;
uint32_t startY = topleftY * aeGrid_.width << aeGrid_.block_width_log2;
uint32_t endX = (startX + (aeRegion.size().width >> aeGrid_.block_width_log2)) << aeGrid_.block_width_log2;
uint32_t startX = topleftX << grid.block_width_log2;
uint32_t startY = topleftY * grid.width << grid.block_width_log2;
uint32_t endX = (startX + (aeRegion.size().width >> grid.block_width_log2)) << grid.block_width_log2;
uint32_t i, j;
uint32_t count = 0;
uint32_t hist[knumHistogramBins] = { 0 };
for (j = topleftY;
j < topleftY + (aeRegion.size().height >> aeGrid_.block_height_log2);
j < topleftY + (aeRegion.size().height >> grid.block_height_log2);
j++) {
for (i = startX + startY; i < endX + startY; i += kCellSize) {
/*
@ -96,9 +96,9 @@ void Agc::processBrightness(const ipu3_uapi_stats_3a *stats)
* We observed a bit shift which makes the value 160 to be 32 in the stats grid.
* Use the one passed at init time.
*/
if (stats->awb_raw_buffer.meta_data[i + 4 + j * aeGrid_.width] == 0) {
uint8_t Gr = stats->awb_raw_buffer.meta_data[i + 0 + j * aeGrid_.width];
uint8_t Gb = stats->awb_raw_buffer.meta_data[i + 3 + j * aeGrid_.width];
if (stats->awb_raw_buffer.meta_data[i + 4 + j * grid.width] == 0) {
uint8_t Gr = stats->awb_raw_buffer.meta_data[i + 0 + j * grid.width];
uint8_t Gb = stats->awb_raw_buffer.meta_data[i + 3 + j * grid.width];
hist[(Gr + Gb) / 2]++;
count++;
}
@ -190,7 +190,7 @@ void Agc::process(IPAContext &context, const ipu3_uapi_stats_3a *stats)
{
uint32_t &exposure = context.frameContext.agc.exposure;
double &gain = context.frameContext.agc.gain;
processBrightness(stats);
processBrightness(stats, context.configuration.grid.bdsGrid);
lockExposureGain(exposure, gain);
frameCount_++;
}

5
src/ipa/ipu3/algorithms/agc.h
View file

@ -33,12 +33,11 @@ public:
void process(IPAContext &context, const ipu3_uapi_stats_3a *stats) override;
private:
void processBrightness(const ipu3_uapi_stats_3a *stats);
void processBrightness(const ipu3_uapi_stats_3a *stats,
const ipu3_uapi_grid_config &grid);
void filterExposure();
void lockExposureGain(uint32_t &exposure, double &gain);
struct ipu3_uapi_grid_config aeGrid_;
uint64_t frameCount_;
uint64_t lastFrame_;