+// Copyright 2011 Paul Hänsch
+// This file is part of Stereofy
+//
+// Stereofy is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Stereofy 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 Stereofy. If not, see <http://www.gnu.org/licenses/>.
+
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
int error(int code);
int mm(int v, int min, int max);
-int anaglyph(FILE *in1, FILE *in2, FILE *out, char *alg);
-unsigned char* colorize(unsigned char *out, const unsigned char *left, const unsigned char *right, const char *alg);
+int anaglyph(FILE *in1, FILE *in2, FILE *out,
+ unsigned char* (*alg)(unsigned char*, const unsigned char*, const unsigned char*) );
+unsigned char* (*parse_func(const char *arg))(unsigned char*, const unsigned char*, const unsigned char*);
+
unsigned char* full_gm(unsigned char *out, const unsigned char *l, const unsigned char *r);
unsigned char* half_gm(unsigned char *out, const unsigned char *l, const unsigned char *r);
unsigned char* dubois_gm(unsigned char *out, const unsigned char *l, const unsigned char *r);
unsigned char* dubois_ab(unsigned char *out, const unsigned char *l, const unsigned char *r);
int main(int argc, char *argv[]){
- FILE *in1, *in2, *out; int cnt; char *alg = malloc(5);
- in1 = in2 = out = NULL; alg = strcpy(alg, "-dgm");
+ FILE *in1, *in2, *out; int cnt; in1 = in2 = out = NULL;
+ unsigned char* (*alg)(unsigned char[], const unsigned char[], const unsigned char[]) = &dubois_rc;
if (argc < 4 || argc > 5) return error(1);
for (cnt = 1; cnt < argc; cnt++) {
- if (argv[cnt][0] == '-') alg = strcpy(alg, argv[cnt]);
+ if (argv[cnt][0] == '-') alg = parse_func(argv[cnt]);
else if (!in1){ if ((in1 = fopen(argv[cnt], "r")) == NULL) return error(2);}
else if (!in2){ if ((in2 = fopen(argv[cnt], "r")) == NULL) return error(2);}
else if (!out){ if ((out = fopen(argv[cnt], "w")) == NULL) return error(3);}
int error(int code){
char *msg = "Unknown Error\n";
switch (code) {
- case 1: msg = "Usage: anaglyph [ -[fhd]gm | -[fhd]rc | -fmc | -dab ] left.rgb right.rgb output.rgb\n";
- case 2: msg = "Could not open input file for reading\n";
- case 3: msg = "Could not open output file for writing\n";
- case 4: msg = "Unexpected end of file\n";
- case 5: msg = "Cannot write to output file\n";
+ case 1: msg = "Usage: anaglyph [ -[fhd]gm | -[fhd]rc | -fmc | -dab ] left.rgb right.rgb output.rgb\n"; break;
+ case 2: msg = "Could not open input file for reading\n"; break;
+ case 3: msg = "Could not open output file for writing\n"; break;
+ case 4: msg = "Unexpected end of file\n"; break;
+ case 5: msg = "Cannot write to output file\n"; break;
}
- fprintf(stderr, msg); return code;
+ fprintf(stderr, "%s", msg); return code;
}
// min-max to prevent overflowing in Dubois calculations
//red-cyan Dubois
unsigned char* dubois_rc(unsigned char *out, const unsigned char *l, const unsigned char *r){
- out[0] = (unsigned char)mm((456*(int)l[0] + 500*(int)l[1] + 176*(int)l[2] +
+ out[0] = (unsigned char) mm((456*(int)l[0] + 500*(int)l[1] + 176*(int)l[2] +
-43*(int)r[0] + -88*(int)r[1] + -2*(int)r[2]) / 1000, 0, 255);
- out[1] = (unsigned char)mm((-40*(int)l[0] + -38*(int)l[1] + -16*(int)l[2] +
+ out[1] = (unsigned char) mm((-40*(int)l[0] + -38*(int)l[1] + -16*(int)l[2] +
378*(int)r[0] + 734*(int)r[1] + -18*(int)r[2]) / 1000, 0, 255);
- out[2] = (unsigned char)mm((-15*(int)l[0] + -21*(int)l[1] + -5*(int)l[2] +
+ out[2] = (unsigned char) mm((-15*(int)l[0] + -21*(int)l[1] + -5*(int)l[2] +
-72*(int)r[0] +-113*(int)r[1] + 1226*(int)r[2]) / 1000, 0, 255);
return out;
}
return out;
}
-//magenta-cyan "Dubois"
-unsigned char* dubois_mc(unsigned char *out, const unsigned char *l, const unsigned char *r){
- out[0] = (unsigned char)mm((529*(int)l[0] + 705*(int)l[1] + 24*(int)l[2] +
- -62*(int)r[0] +-158*(int)r[1] + -39*(int)r[2]) / 1000, 0, 255);
- out[1] = (unsigned char)mm((-40*(int)l[0] + -38*(int)l[1] + -16*(int)l[2] +
- 378*(int)r[0] + 734*(int)r[1] + -18*(int)r[2]) / 1000, 0, 255);
- out[2] = (unsigned char)mm((-15*(int)l[0] + -24*(int)l[1] + 8*(int)l[2] +
- -32*(int)r[0] + -19*(int)r[1] + 1081*(int)r[2]) / 1000, 0, 255);
-
-// out[2] = (unsigned char)mm((-15*(int)l[0] + -27*(int)l[1] + 21*(int)l[2] + gm
-// 9*(int)r[0] + 75*(int)r[1] + 937*(int)r[2]) / 1000, 0, 255);
-// out[2] = (unsigned char)mm((-15*(int)l[0] + -21*(int)l[1] + -5*(int)l[2] + rc
-// -72*(int)r[0] +-113*(int)r[1] + 1226*(int)r[2]) / 1000, 0, 255);
+//magenta-cyan experimental
+unsigned char* experimental_mc(unsigned char *out, const unsigned char *l, const unsigned char *r){
+ out[0] = (unsigned char) mm((556*(int)l[0] + 400*(int)l[1] + 176*(int)l[2] +
+ -43*(int)r[0] + -88*(int)r[1] + -2*(int)r[2]) / 950, 0, 255);
+ out[1] = (unsigned char) mm((-40*(int)l[0] + -38*(int)l[1] + -16*(int)l[2] +
+ 278*(int)r[0] + 734*(int)r[1] + -18*(int)r[2]) / 1100, 0, 255);
+ out[2] = (unsigned char) mm((-15*(int)l[0] + -21*(int)l[1] + 600*(int)l[2] +
+ -72*(int)r[0] +-113*(int)r[1] + 621*(int)r[2]) / 950, 0, 255);
return out;
}
return out;
}
-unsigned char* colorize(unsigned char *out, const unsigned char *left, const unsigned char *right, const char *alg){
- if (!strcmp(alg, "-fgm")) return full_gm(out, left, right);
- if (!strcmp(alg, "-hgm")) return half_gm(out, left, right);
- if (!strcmp(alg, "-dgm")) return dubois_gm(out, left, right);
+unsigned char* (*parse_func(const char *arg))(unsigned char*, const unsigned char*, const unsigned char*){
+ if (!strcmp(arg, "-fgm")) return &full_gm;
+ if (!strcmp(arg, "-hgm")) return &half_gm;
+ if (!strcmp(arg, "-dgm")) return &dubois_gm;
- if (!strcmp(alg, "-frc")) return full_rc(out, left, right);
- if (!strcmp(alg, "-hrc")) return half_rc(out, left, right);
- if (!strcmp(alg, "-drc")) return dubois_rc(out, left, right);
+ if (!strcmp(arg, "-frc")) return &full_rc;
+ if (!strcmp(arg, "-hrc")) return &half_rc;
+ if (!strcmp(arg, "-drc")) return &dubois_rc;
- if (!strcmp(alg, "-fmc")) return full_mc(out, left, right);
- if (!strcmp(alg, "-dmc")) return dubois_mc(out, left, right);
- if (!strcmp(alg, "-dab")) return dubois_ab(out, left, right);
- exit(error(1)); return out;
+ if (!strcmp(arg, "-fmc")) return &full_mc;
+ if (!strcmp(arg, "-dab")) return &dubois_ab;
+ if (!strcmp(arg, "-emc")) return &experimental_mc;
+ exit(error(1)); return &dubois_rc;
}
-int anaglyph(FILE *in1, FILE *in2, FILE *out, char *alg){
+int anaglyph(FILE *in1, FILE *in2, FILE *out,
+ unsigned char* (*alg)(unsigned char*, const unsigned char*, const unsigned char*) ){
unsigned char *i1 = malloc(3), *i2 = malloc(3), *o = malloc(3);
while (fread( i1, 1, 3, in1) && fread( i2, 1, 3, in2)){
- if (!fwrite(colorize( o, i1, i2, alg), 1, 3, out)) return error(5);
+ if (!fwrite(alg( o, i1, i2), 1, 3, out)) return error(5);
}
return 0;
}
projects / stereofy / blobdiff