--- /dev/null
+
+///////////////////////////////////////////////////////////////////////////
+// This program is free software: you can redistribute it and/or modify //
+// it under the terms of the version 3 of the GNU General Public License //
+// as published by the Free Software Foundation. //
+// //
+// This program is distributed in the hope that it will be useful, but //
+// WITHOUT ANY WARRANTY; without even the implied warranty of //
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU //
+// General Public License for more details. //
+// //
+// You should have received a copy of the GNU General Public License //
+// along with this program. If not, see <http://www.gnu.org/licenses/>. //
+// //
+// Written by Francois Fleuret, (C) IDIAP //
+// Contact <francois.fleuret@idiap.ch> for comments & bug reports //
+///////////////////////////////////////////////////////////////////////////
+
+#include "rgb_image_subpixel.h"
+
+RGBImageSubpixel::RGBImageSubpixel(int width, int height) : RGBImage(width * _scale, height* _scale) { }
+
+RGBImageSubpixel::RGBImageSubpixel(RGBImage *image) : RGBImage(image->width() * _scale, image->height() * _scale) {
+ for(int y = 0; y < _height; y++) {
+ for(int x = 0; x < _width; x++) {
+ set_pixel(x, y,
+ image->pixel(x / _scale, y / _scale, RGBImage::RED),
+ image->pixel(x / _scale, y / _scale, RGBImage::GREEN),
+ image->pixel(x / _scale, y / _scale, RGBImage::BLUE));
+ }
+ }
+}
+
+RGBImageSubpixel::~RGBImageSubpixel() { }
+
+void RGBImageSubpixel::read_ppm(const char *filename) {
+ abort();
+}
+
+void RGBImageSubpixel::write_ppm(const char *filename) {
+ abort();
+}
+
+
+void RGBImageSubpixel::read_png(const char *filename) {
+ abort();
+}
+
+void RGBImageSubpixel::write_png(const char *filename) {
+ RGBImage tmp(_width / _scale, _height / _scale);
+ for(int y = 0; y < _height / _scale; y++) {
+ for(int x = 0; x < _width / _scale; x++) {
+ int sr = 0, sg = 0, sb = 0;
+ for(int yy = y * _scale; yy < (y + 1) * _scale; yy++) {
+ for(int xx = x * _scale; xx < (x + 1) * _scale; xx++) {
+ sr += int(_bit_plans[RED][yy][xx]);
+ sg += int(_bit_plans[GREEN][yy][xx]);
+ sb += int(_bit_plans[BLUE][yy][xx]);
+ }
+ }
+
+ tmp.set_pixel(x, y,
+ sr / (_scale * _scale), sg / (_scale * _scale), sb / (_scale * _scale));
+ }
+ }
+ tmp.write_png(filename);
+}
+
+
+void RGBImageSubpixel::read_jpg(const char *filename) {
+ abort();
+}
+
+void RGBImageSubpixel::write_jpg(const char *filename, int quality) {
+ abort();
+}
+
+
+void RGBImageSubpixel::draw_line(int thickness,
+ unsigned char r, unsigned char g, unsigned char b,
+ scalar_t x0, scalar_t y0, scalar_t x1, scalar_t y1) {
+ RGBImage::draw_line(int(thickness * _scale),
+ r, g, b,
+ x0 * _scale + _scale/2, y0 * _scale + _scale/2,
+ x1 * _scale + _scale/2, y1 * _scale + _scale/2);
+}