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Dual demosaic: reduce memory usage by width * height * 4 byte

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This commit is contained in:
Ingo Weyrich 2019-11-21 16:23:39 +01:00
parent 0444334564
commit 9bd53a5cc9
1 changed files with 12 additions and 7 deletions
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19
rtengine/dual_demosaic_RT.cc
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@ -33,7 +33,7 @@
#include "../rtgui/options.h"
//#define BENCHMARK
#define BENCHMARK
#include "StopWatch.h"
using namespace std;
@ -66,14 +66,9 @@ void RawImageSource::dual_demosaic_RT(bool isBayer, const procparams::RAWParams
return;
}
array2D<float> redTmp(winw, winh);
array2D<float> greenTmp(winw, winh);
array2D<float> blueTmp(winw, winh);
array2D<float> L(winw, winh);
if (isBayer) {
vng4_demosaic(rawData, redTmp, greenTmp, blueTmp);
if (raw.bayersensor.method == procparams::RAWParams::BayerSensor::getMethodString(procparams::RAWParams::BayerSensor::Method::AMAZEVNG4) || raw.bayersensor.method == procparams::RAWParams::BayerSensor::getMethodString(procparams::RAWParams::BayerSensor::Method::PIXELSHIFT)) {
amaze_demosaic_RT(0, 0, winw, winh, rawData, red, green, blue, options.chunkSizeAMAZE, options.measure);
} else if (raw.bayersensor.method == procparams::RAWParams::BayerSensor::getMethodString(procparams::RAWParams::BayerSensor::Method::DCBVNG4) ) {
@ -87,7 +82,6 @@ void RawImageSource::dual_demosaic_RT(bool isBayer, const procparams::RAWParams
} else {
xtrans_interpolate (1, false, options.chunkSizeXT, options.measure);
}
fast_xtrans_interpolate(rawData, redTmp, greenTmp, blueTmp);
}
const float xyz_rgb[3][3] = { // XYZ from RGB
@ -114,6 +108,17 @@ void RawImageSource::dual_demosaic_RT(bool isBayer, const procparams::RAWParams
buildBlendMask(L, blend, winw, winh, contrastf, 1.f, autoContrast);
contrast = contrastf * 100.f;
array2D<float>& redTmp = L; // L is not needed anymore => reuse it
array2D<float> greenTmp(winw, winh);
array2D<float> blueTmp(winw, winh);
if (isBayer) {
vng4_demosaic(rawData, redTmp, greenTmp, blueTmp);
} else {
fast_xtrans_interpolate(rawData, redTmp, greenTmp, blueTmp);
}
// the following is split into 3 loops intentionally to avoid cache conflicts on CPUs with only 4-way cache
#ifdef _OPENMP
#pragma omp parallel for