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#include <stdlib.h>
#include <FL/Fl.H>
#include <FL/x.H>
#include <FL/fl_draw.H>
#include "JPEGOutputImage.H"
#include "ScreenDump.H"
ScreenDump::ScreenDump(GipfelWidget *g) {
Fl_Offscreen offscreen;
gipf = g;
Fl::flush();
offscreen = fl_create_offscreen(gipf->w(), gipf->h());
fl_begin_offscreen(offscreen);
gipf->draw();
rgb = fl_read_image(NULL, 0, 0, gipf->w(), gipf->h());
fl_end_offscreen();
fl_delete_offscreen(offscreen);
}
ScreenDump::~ScreenDump() {
free(rgb);
}
int
ScreenDump::save(const char *file) {
JPEGOutputImage out(file, 95);
out.init(gipf->w(), gipf->h());
for (int y = 0; y < gipf->h(); y++) {
for (int x = 0; x < gipf->w(); x++) {
unsigned char *px = &rgb[(y * gipf->w() + x) * 3];
out.set_pixel(x, px[0] * 255, px[1] * 255, px[2] * 255);
}
out.next_line();
}
out.done();
}
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