Elie: Wrapped the code in (forgot to do it in the last edit)

2024-03-05T20:46:00Z

Wrapped the code in <syntaxhighlight /> (forgot to do it in the last edit)

← Older revision		Revision as of 16:46, 5 March 2024
Line 1:		Line 1:
			<syntaxhighlight lang="c">
	// Elie's isochromic image generator v0.6		// Elie's isochromic image generator v0.6
	// Copyright 2022, Elie Goldman Smith		// Copyright 2022, Elie Goldman Smith
Line 1,104:		Line 1,105:
	return 0;		return 0;
	}		}
			</syntaxhighlight>

Elie: Started version 0.6. Changed the "preserve sums" syntax to '$' (it used to be '_').

2024-03-05T20:40:28Z

Started version 0.6. Changed the "preserve sums" syntax to '$' (it used to be '_').

← Older revision		Revision as of 16:40, 5 March 2024
Line 1:		Line 1:
	~~<syntaxhighlight lang="c">~~		// Elie's isochromic image generator v0.6
	// Elie's isochromic image generator v0.5
	// Copyright 2022, Elie Goldman Smith		// Copyright 2022, Elie Goldman Smith
	// License: GNU GPL V3		// License: GNU GPL V3
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	puts(" ");		puts(" ");
	puts("Commands - quick reference:");		puts("Commands - quick reference:");
	puts(" foo << input.png # Load data from file");		puts(" foo << input.png # Load data from file (can create new variable 'foo')");
	puts(" bar := foo # Copy data");		puts(" bar := foo # Copy data (can create new variable 'bar')");
	puts(" bar += foo # Addition");		puts(" bar += foo # Addition");
	puts(" bar -= foo # Subtraction");		puts(" bar -= foo # Subtraction");
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	puts(" bar _= foo # Fill in any blanks");		puts(" bar _= foo # Fill in any blanks");
	puts(" bar [] foo # Array lookup");		puts(" bar [] foo # Array lookup");
	puts(" bar :: foo # Resize image");		puts(" bar :: foo # Resize image (or create new blank variable 'bar')");
	puts(" bar >> output.png # Save data to file");		puts(" bar >> output.png # Save data to file");
	puts(" -- ");		puts(" -- ");
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	puts(" -- # Special functions:");		puts(" -- # Special functions:");
	puts(" foo @@ spread # Smooth out the overflows");		puts(" foo @@ spread # Smooth out the overflows");
	puts(" foo @@ stats # Quick statistical info");		puts(" foo @@ stats # Quick statistical info");
	puts(" foo @@ clear # Delete 'foo', free up memory");		puts(" foo @@ clear # Delete 'foo', free up memory");
	}		}
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	return result; // done loading headerless data		return result; // done loading headerless data
	}		}

	// other case: image file:		// other case: image file:
	printf("Loading image file"); fflush(stdout);		printf("Loading image file"); fflush(stdout);
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	// operator [] (array mapping)		// operator [] (array mapping)
	if (c0=='[' && c1==']') {		if (c0=='[' && c1==']') {
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	int newWidth=0, newHeight=0, preserveSum=0;		int newWidth=0, newHeight=0, preserveSum=0;
	char *rightx = right;		char *rightx = right;
	if (right[0]=='_') {		if (right[0]=='$') { // the '$' preserves pixel sums. Note that the syntax was previously '_' instead, in version 0.5
	// ~~TODO XXX: Change~~ the ~~syntax. The~~ '_' ~~is a terrible choice for "preserve sum", because~~ the ~~names of variables could also contain underscores. Use~~ '$' instead ~~- makes far more sense. Also change this for the integer scale functions "@@ _width" and "@@ _height"~~. ~~Last but not least, be sure to update the wikitext of '''all''' the images generated so far!~~
	rightx++;		rightx++;
	preserveSum=1;		preserveSum=1;
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	}		}
	printf("Resizing '%s'(%dx%d) to ", left, lv->width, lv->height);		printf("Resizing '%s'(%dx%d) to ", left, lv->width, lv->height);
	if (rv) printf("fit '%s'", ~~right~~);		if (rv) printf("fit '%s'", rightx);
	printf("(%dx%d) - note: may be slow\n", newWidth, newHeight);		printf("(%dx%d) - note: may be slow\n", newWidth, newHeight);
	if (preserveSum) printf(" + preserving the sum of pixels\n");		if (preserveSum) printf(" + preserving the sum of pixels\n");
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	Var *lv[4] = {0};		Var *lv[4] = {0};
	lv[0] = find_var(left);		lv[0] = find_var(left);
	if (lv[0]) n=1;		if (lv[0] && lv[0]->width && lv[0]->height) n = 1;
	else {		else {
	// try multiple channels - for variable 'foo', look for 'foo.r', 'foo.g', 'foo.b', 'foo.a'		// try multiple channels - for variable 'foo', look for 'foo.r', 'foo.g', 'foo.b', 'foo.a'
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	}		}
	if (highs \|\| lows) {		if (highs \|\| lows) {
	printf(" '%s' contains overflows (%d pixels are >1) (%d pixels are <0)\n", lv[i]->name, highs, lows);		printf(" Note: '%s' contains overflows(%d pixels are >1)(%d pixels are <0)\n", lv[i]->name, highs, lows);
	printf(" Image will not be isochromic.\n If you want it to be, you need to first do:\n");		printf(" Image will not be isochromic.\n If you want it to be, you need to first do:\n");
	printf(" %s @@ spread\n (which would alter the contents of '%s').\n", lv[i]->name, lv[i]->name);		printf(" %s @@ spread\n (which would alter the contents of '%s').\n", lv[i]->name, lv[i]->name);
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	if (!strncasecmp(right,"width",5) \|\| !strncasecmp(right,"~~_width~~",6)) {		if (!strncasecmp(right,"width",5) \|\| !strncasecmp(right,"$width",6)) {
	if (lv->width<=0 \|\| lv->height<=0) {		if (lv->width<=0 \|\| lv->height<=0) {
	printf("Can't scale an empty variable\n");		printf("Can't scale an empty variable\n");
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	lv->width *= scale;		lv->width *= scale;
	}		}
	if (right[0]=='_') printf(" + preserving the sum of pixels\n");		if (right[0]=='$') printf(" + preserving the sum of pixels\n");
	if((right[0]=='_') != (p=='/')) for (int i=0; i < lv->widthlv->height; i++) lv->data[i] /= scale;		if((right[0]=='$') != (p=='/')) for (int i=0; i < lv->widthlv->height; i++) lv->data[i] /= scale;
	return RESULT_OK;		return RESULT_OK;
	}		}


	if (!strncasecmp(right,"height",6) \|\| !strncasecmp(right,"~~_height~~",7)) {		if (!strncasecmp(right,"height",6) \|\| !strncasecmp(right,"$height",7)) {
	if (lv->width<=0 \|\| lv->height<=0) {		if (lv->width<=0 \|\| lv->height<=0) {
	printf("Can't scale an empty variable\n");		printf("Can't scale an empty variable\n");
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	lv->height *= scale;		lv->height *= scale;
	}		}
	if (right[0]=='_') printf(" + preserving the sum of pixels\n");		if (right[0]=='$') printf(" + preserving the sum of pixels\n");
	if((right[0]=='_') != (p=='/')) for (int i=0; i < lv->widthlv->height; i++) lv->data[i] /= scale;		if((right[0]=='$') != (p=='/')) for (int i=0; i < lv->widthlv->height; i++) lv->data[i] /= scale;
	return RESULT_OK;		return RESULT_OK;
	}		}
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	return 0;		return 0;
	}		}
	~~</syntaxhighlight>~~

Elie: Added note about how I'm planning to change the syntax for "preserve sum" (i want it to be '$' instead of '_')

2024-03-01T06:15:30Z

Added note about how I'm planning to change the syntax for "preserve sum" (i want it to be '$' instead of '_')

← Older revision		Revision as of 02:15, 1 March 2024
Line 758:		Line 758:
	char *rightx = right;		char *rightx = right;
	if (right[0]=='_') {		if (right[0]=='_') {
			// TODO XXX: Change the syntax. The '_' is a terrible choice for "preserve sum", because the names of variables could also contain underscores. Use '$' instead - makes far more sense. Also change this for the integer scale functions "@@ _width" and "@@ _height". Last but not least, be sure to update the wikitext of '''all''' the images generated so far!
	rightx++;		rightx++;
	preserveSum=1;		preserveSum=1;

Elie: Created page with " // Elie's isochromic image generator v0.5 // Copyright 2022, Elie Goldman Smith // License: GNU GPL V3 // To compile this code: // gcc isochromic.c -lm -lfftw3 -lreadline -lcurses -O3 -o isochromic // # takes awhile to compile, because of optimization and stb_image #include #include #include #include #include #include #include #include #include <..."

2022-08-05T16:15:03Z

Created page with "<syntaxhighlight lang="c"> // Elie's isochromic image generator v0.5 // Copyright 2022, Elie Goldman Smith // License: GNU GPL V3 // To compile this code: // gcc isochromic.c -lm -lfftw3 -lreadline -lcurses -O3 -o isochromic // # takes awhile to compile, because of optimization and stb_image #include <ctype.h> #include <fftw3.h> #include <math.h> #include <signal.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <readline/readline.h> #include <..."

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Code:isochromic.c - Revision history

Elie: Wrapped the code in (forgot to do it in the last edit)

Elie: Started version 0.6. Changed the "preserve sums" syntax to '$' (it used to be '_').

Elie: Added note about how I'm planning to change the syntax for "preserve sum" (i want it to be '$' instead of '_')