PawletOS/external_libcamera
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

libcamera: software_isp: Use RGB type to represent gains

Browse Source 
Rather than using a custom struct to represent RGB values, let's use the
corresponding type and its facilities.

Signed-off-by: Milan Zamazal <mzamazal@redhat.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Milan Zamazal <mzamazal@redhat.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
This commit is contained in:
Milan Zamazal
2025-03-26 10:08:39 +01:00
committed by Kieran Bingham
parent 84f82c6b3c
commit 94e849bcf7
3 changed files with 16 additions and 22 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/ipa/simple/algorithms/lut.cpp
+4 -10
View File
@@ -103,16 +103,10 @@ void Lut::prepare(IPAContext &context,
const double div = static_cast<double>(DebayerParams::kRGBLookupSize) /
gammaTableSize;
/* Apply gamma after gain! */
unsigned int idx;
idx = std::min({ static_cast<unsigned int>(i * gains.red / div),
gammaTableSize - 1 });
params->red[i] = gammaTable[idx];
idx = std::min({ static_cast<unsigned int>(i * gains.green / div),
gammaTableSize - 1 });
params->green[i] = gammaTable[idx];
idx = std::min({ static_cast<unsigned int>(i * gains.blue / div),
gammaTableSize - 1 });
params->blue[i] = gammaTable[idx];
const RGB<double> lutGains = (gains * i / div).min(gammaTableSize - 1);
params->red[i] = gammaTable[static_cast<unsigned int>(lutGains.r())];
params->green[i] = gammaTable[static_cast<unsigned int>(lutGains.g())];
params->blue[i] = gammaTable[static_cast<unsigned int>(lutGains.b())];
}
}