#include <boost/lexical_cast.hpp>
#include <libxml++/libxml++.h>
-#include <libdcp/colour_matrix.h>
+#include <dcp/colour_matrix.h>
#include <libcxml/cxml.h>
+#include "config.h"
#include "colour_conversion.h"
+#include "util.h"
#include "i18n.h"
using std::list;
using std::string;
+using std::cout;
+using std::vector;
using boost::shared_ptr;
using boost::lexical_cast;
+using boost::optional;
ColourConversion::ColourConversion ()
- : name (_("Untitled"))
- , input_gamma (2.4)
+ : input_gamma (2.4)
, input_gamma_linearised (true)
, matrix (3, 3)
, output_gamma (2.6)
{
for (int i = 0; i < 3; ++i) {
for (int j = 0; j < 3; ++j) {
- matrix (i, j) = libdcp::colour_matrix::xyz_to_rgb[i][j];
+ matrix (i, j) = dcp::colour_matrix::srgb_to_xyz[i][j];
}
}
}
-ColourConversion::ColourConversion (string n, float i, bool il, float const m[3][3], float o)
- : name (n)
- , input_gamma (i)
+ColourConversion::ColourConversion (double i, bool il, double const m[3][3], double o)
+ : input_gamma (i)
, input_gamma_linearised (il)
, matrix (3, 3)
, output_gamma (o)
}
}
-ColourConversion::ColourConversion (shared_ptr<cxml::Node> node)
+ColourConversion::ColourConversion (cxml::NodePtr node)
: matrix (3, 3)
{
- name = node->string_child ("Name");
- input_gamma = node->number_child<float> ("InputGamma");
+ LocaleGuard lg;
+
+ input_gamma = node->number_child<double> ("InputGamma");
input_gamma_linearised = node->bool_child ("InputGammaLinearised");
for (int i = 0; i < 3; ++i) {
}
}
- list<shared_ptr<cxml::Node> > m = node->node_children ("Matrix");
- for (list<shared_ptr<cxml::Node> >::iterator i = m.begin(); i != m.end(); ++i) {
+ list<cxml::NodePtr> m = node->node_children ("Matrix");
+ for (list<cxml::NodePtr>::iterator i = m.begin(); i != m.end(); ++i) {
int const ti = (*i)->number_attribute<int> ("i");
int const tj = (*i)->number_attribute<int> ("j");
- matrix(ti, tj) = lexical_cast<float> ((*i)->content ());
+ matrix(ti, tj) = lexical_cast<double> ((*i)->content ());
}
- output_gamma = node->number_child<float> ("OutputGamma");
+ output_gamma = node->number_child<double> ("OutputGamma");
}
void
ColourConversion::as_xml (xmlpp::Node* node) const
{
- node->add_child("Name")->add_child_text (name);
+ LocaleGuard lg;
+
node->add_child("InputGamma")->add_child_text (lexical_cast<string> (input_gamma));
node->add_child("InputGammaLinearised")->add_child_text (input_gamma_linearised ? "1" : "0");
node->add_child("OutputGamma")->add_child_text (lexical_cast<string> (output_gamma));
}
+
+optional<size_t>
+ColourConversion::preset () const
+{
+ vector<PresetColourConversion> presets = Config::instance()->colour_conversions ();
+ size_t i = 0;
+ while (i < presets.size() && (presets[i].conversion != *this)) {
+ ++i;
+ }
+
+ if (i >= presets.size ()) {
+ return optional<size_t> ();
+ }
+
+ return i;
+}
+
+string
+ColourConversion::identifier () const
+{
+ double numbers[12];
+
+ int n = 0;
+ numbers[n++] = input_gamma;
+ numbers[n++] = input_gamma_linearised;
+ for (int i = 0; i < 3; ++i) {
+ for (int j = 0; j < 3; ++j) {
+ numbers[n++] = matrix (i, j);
+ }
+ }
+ numbers[n++] = output_gamma;
+
+ assert (n == 12);
+
+ return md5_digest (numbers, 12 * sizeof (double));
+}
+
+PresetColourConversion::PresetColourConversion ()
+ : name (_("Untitled"))
+{
+
+}
+
+PresetColourConversion::PresetColourConversion (string n, double i, bool il, double const m[3][3], double o)
+ : name (n)
+ , conversion (i, il, m, o)
+{
+
+}
+
+PresetColourConversion::PresetColourConversion (cxml::NodePtr node)
+ : conversion (node)
+{
+ name = node->string_child ("Name");
+}
+
+void
+PresetColourConversion::as_xml (xmlpp::Node* node) const
+{
+ conversion.as_xml (node);
+ node->add_child("Name")->add_child_text (name);
+}
+
+static bool
+about_equal (double a, double b)
+{
+ static const double eps = 1e-6;
+ return fabs (a - b) < eps;
+}
+
+bool
+operator== (ColourConversion const & a, ColourConversion const & b)
+{
+ if (
+ !about_equal (a.input_gamma, b.input_gamma) ||
+ a.input_gamma_linearised != b.input_gamma_linearised ||
+ !about_equal (a.output_gamma, b.output_gamma)) {
+ return false;
+ }
+
+ for (int i = 0; i < 3; ++i) {
+ for (int j = 0; j < 3; ++j) {
+ if (!about_equal (a.matrix (i, j), b.matrix (i, j))) {
+ return false;
+ }
+ }
+ }
+
+ return true;
+}
+
+bool
+operator!= (ColourConversion const & a, ColourConversion const & b)
+{
+ return !(a == b);
+}