/*
        OpenLase - a realtime laser graphics toolkit

Copyright (C) 2009-2011 Hector Martin "marcan" <hector@marcansoft.com>

This program 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 2 or version 3.

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, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
*/

#ifndef TRACE_H
#define TRACE_H

typedef struct OLTraceCtx OLTraceCtx;

typedef uint32_t icoord;

typedef enum {
	OL_TRACE_THRESHOLD,
	OL_TRACE_CANNY
} OLTraceMode;

typedef struct {
	OLTraceMode mode;
	icoord width, height;
	float sigma;
	unsigned int threshold;
	unsigned int threshold2;
} OLTraceParams;

typedef struct {
	icoord x, y;
} OLTracePoint;

typedef struct {
	unsigned int count;
	OLTracePoint *points;
} OLTraceObject;

typedef struct {
	unsigned int count;
	OLTraceObject *objects;
} OLTraceResult;

int olTraceInit(OLTraceCtx **ctx, OLTraceParams *params);
int olTraceReInit(OLTraceCtx *ctx, OLTraceParams *params);

int olTrace(OLTraceCtx *ctx, uint8_t *src, icoord stride, OLTraceResult *result);
void olTraceFree(OLTraceResult *result);

void olTraceDeinit(OLTraceCtx *ctx);

#endif