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Use Image16 instead of Imagefloat for CLUT

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Gain speed and reduce memory by using Image16 instead of Imagefloat for
the CLUT.
This commit is contained in:
Flössie
2016-04-18 20:38:23 +02:00
parent e495093b18
commit f639cd6b82
3 changed files with 23 additions and 16 deletions
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28
rtengine/clutstore.cc
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@@ -1,18 +1,22 @@
#include <algorithm>
#include "clutstore.h"
#include "rt_math.h"
#include "image16.h"
#include "imagefloat.h"
#include "stdimagesource.h"
#include "../rtgui/options.h"
namespace
{
std::unique_ptr<rtengine::Imagefloat> loadFile(
std::unique_ptr<rtengine::Image16> loadFile(
const Glib::ustring& filename,
const Glib::ustring& working_color_space,
unsigned int& clut_level
)
{
std::unique_ptr<rtengine::Imagefloat> result;
std::unique_ptr<rtengine::Image16> result;
rtengine::StdImageSource img_src;
@@ -38,17 +42,19 @@ std::unique_ptr<rtengine::Imagefloat> loadFile(
if (valid) {
rtengine::ColorTemp curr_wb = img_src.getWB();
result = std::unique_ptr<rtengine::Imagefloat>(new rtengine::Imagefloat(fw, fh));
std::unique_ptr<rtengine::Imagefloat> img_float = std::unique_ptr<rtengine::Imagefloat>(new rtengine::Imagefloat(fw, fh));
const PreviewProps pp(0, 0, fw, fh, 1);
rtengine::procparams::ColorManagementParams icm;
icm.working = working_color_space;
img_src.getImage(curr_wb, TR_NONE, result.get(), pp, rtengine::procparams::ToneCurveParams(), icm, rtengine::procparams::RAWParams());
img_src.getImage(curr_wb, TR_NONE, img_float.get(), pp, rtengine::procparams::ToneCurveParams(), icm, rtengine::procparams::RAWParams());
if (!working_color_space.empty()) {
img_src.convertColorSpace(result.get(), icm, curr_wb);
img_src.convertColorSpace(img_float.get(), icm, curr_wb);
}
result = std::unique_ptr<rtengine::Image16>(img_float->to16());
}
return result;
@@ -100,6 +106,8 @@ void rtengine::CLUT::splitClutFilename(
rtengine::HaldCLUT::HaldCLUT() :
clut_level(0),
flevel_minus_one(0.0f),
flevel_minus_two(0.0f),
clut_profile("sRGB")
{
}
@@ -116,6 +124,9 @@ bool rtengine::HaldCLUT::load(const Glib::ustring& filename)
if (clut_image) {
clut_filename = filename;
clut_level *= clut_level;
flevel_minus_one = static_cast<float>(clut_level - 1) / 65535.0f;
flevel_minus_two = static_cast<float>(clut_level - 2);
return true;
}
@@ -139,10 +150,7 @@ Glib::ustring rtengine::HaldCLUT::getProfile() const
void rtengine::HaldCLUT::getRGB(float r, float g, float b, float& out_r, float& out_g, float& out_b) const
{
const unsigned int level = clut_level * clut_level;
const float flevel_minus_one = static_cast<float>(level - 1) / 65535.0f;
const float flevel_minus_two = static_cast<float>(level - 2);
const unsigned int level = clut_level; // This is important
const unsigned int red = std::min(flevel_minus_two, r * flevel_minus_one);
const unsigned int green = std::min(flevel_minus_two, g * flevel_minus_one);