/* @(#) Function which prints in stdout the values of a picture
 * @(#)
 * @(#) For debuging only
 * @(#) is either memory mapped or in a buffer.
 * @(#)
 * @(#) void
 * @(#) im_debugim(in)
 * @(#) IMAGE *in;
 * @(#)
 *
 * Copyright: 1991 N. Dessipris
 *
 * Author: N. Dessipris
 * Written on: 18/03/1991
 * Modified on:
 * 15/4/93 J.Cupitt
 *      - returns int, not void now, so error messages work
 *      - detects im->data invalid.
 * 15/4/93 J.Cupitt
 *      - uses %g format, not %f for printf()
 * 23/7/93 JC
 *	- im_incheck() added
 */

/*

	This file is part of VIPS.

	VIPS is free software; you can redistribute it and/or modify
	it under the terms of the GNU Lesser General Public License as published by
	the Free Software Foundation; either version 2 of the License, or
	(at your option) any later version.

	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 Lesser General Public License for more details.

	You should have received a copy of the GNU Lesser General Public License
	along with this program; if not, write to the Free Software
	Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
	02110-1301  USA

 */

/*

	These files are distributed with VIPS - http://www.vips.ecs.soton.ac.uk

 */

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif /*HAVE_CONFIG_H*/
#include <glib/gi18n-lib.h>

#include <stdio.h>

#include <vips/vips.h>

int
im_debugim(IMAGE *in)
{
	/* Check our args. */
	if (im_incheck(in))
		return -1;
	if (in->Coding != IM_CODING_NONE) {
		im_error("im_debugim", "%s", _("input must be uncoded"));
		return -1;
	}

/* What type? First define the loop we want to perform for all types. */
#define loopuc(TYPE) \
	{ \
		TYPE *p = (TYPE *) in->data; \
		int x, y, z; \
\
		for (y = 0; y < in->Ysize; y++) { \
			for (x = 0; x < in->Xsize; x++) { \
				for (z = 0; z < in->Bands; z++) { \
					fprintf(stderr, "%4d", (TYPE) *p++); \
				} \
			} \
			fprintf(stderr, "\n"); \
		} \
	}

#define loop(TYPE) \
	{ \
		TYPE *p = (TYPE *) in->data; \
		int x, y, z; \
\
		for (y = 0; y < in->Ysize; y++) { \
			for (x = 0; x < in->Xsize; x++) { \
				for (z = 0; z < in->Bands; z++) { \
					fprintf(stderr, "%g\t", (double) *p++); \
				} \
			} \
			fprintf(stderr, "\n"); \
		} \
	}

#define loopcmplx(TYPE) \
	{ \
		TYPE *p = (TYPE *) in->data; \
		int x, y, z; \
\
		for (y = 0; y < in->Ysize; y++) { \
			for (x = 0; x < in->Xsize; x++) { \
				for (z = 0; z < in->Bands; z++) { \
					fprintf(stderr, "re=%g\t", (double) *p++); \
					fprintf(stderr, "im=%g\t", (double) *p++); \
				} \
			} \
			fprintf(stderr, "\n"); \
		} \
	}

	/* Now generate code for all types. */
	switch (in->BandFmt) {
	case IM_BANDFMT_UCHAR:
		loopuc(unsigned char);
		break;
	case IM_BANDFMT_CHAR:
		loop(char);
		break;
	case IM_BANDFMT_USHORT:
		loop(unsigned short);
		break;
	case IM_BANDFMT_SHORT:
		loop(short);
		break;
	case IM_BANDFMT_UINT:
		loop(unsigned int);
		break;
	case IM_BANDFMT_INT:
		loop(int);
		break;
	case IM_BANDFMT_FLOAT:
		loop(float);
		break;
	case IM_BANDFMT_DOUBLE:
		loop(double);
		break;
	case IM_BANDFMT_COMPLEX:
		loopcmplx(float);
		break;
	case IM_BANDFMT_DPCOMPLEX:
		loopcmplx(double);
		break;

	default:
		im_error("im_debugim", "%s", _("unknown input format"));
		return -1;
	}

	return 0;
}
