gvsig-raster / libjni-potrace / trunk / libjni-potrace / resources / potrace-1.8 / src / potrace_raster.c @ 1780
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/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
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*
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* Copyright (C) 2005 IVER T.I. and Generalitat Valenciana.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
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*/
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#include <stdio.h> |
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#include <errno.h> |
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#include <math.h> |
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#include "getopt.h" |
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|
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#include "main.h" |
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#include "platform.h" |
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|
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#include "backend_pdf.h" |
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#include "backend_eps.h" |
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#include "backend_pgm.h" |
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#include "backend_svg.h" |
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#include "backend_gimp.h" |
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#include "backend_xfig.h" |
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#include "bitmap_io.h" |
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#include "auxiliary.h" |
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|
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#ifndef M_PI
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#define M_PI 3.14159265358979323846 |
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#endif
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|
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#define UNDEF ((double)(1e30)) /* a value to represent "undefined" */ |
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#define INFTY ((double)(1e30)) /* a value to represent +infinity */ |
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|
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/* backends and their characteristics */
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struct backend_s {
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char *name; /* name of this backend */ |
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char *ext; /* file extension */ |
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int fixed; /* fixed page size backend? */ |
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int pixel; /* pixel-based backend? */ |
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int multi; /* multi-page backend? */ |
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int (*init_f)(FILE *fout); /* initialization function */ |
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int (*page_f)(FILE *fout, potrace_path_t *plist, imginfo_t *imginfo);
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/* per-bitmap function */
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int (*term_f)(FILE *fout); /* finalization function */ |
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int opticurve; /* opticurve capable (true Bezier curves?) */ |
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}; |
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typedef struct backend_s backend_t; |
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|
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static backend_t backend[] = { {"eps", ".eps", 0, 0, 0, NULL, page_eps, NULL, 1}, {"postscript", ".ps", 1, 0, 1, |
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init_ps, page_ps, term_ps, 1}, {"ps", ".ps", 1, 0, 1, init_ps, page_ps, term_ps, 1}, {"pdf", ".pdf", 0, 0, 1, |
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init_pdf, page_pdf, term_pdf, 1}, {"svg", ".svg", 0, 0, 0, NULL, page_svg, NULL, 1}, {"pgm", ".pgm", 0, 1, 1, NULL, |
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page_pgm, NULL, 1}, {"gimppath", ".gimppath", 0, 1, 0, NULL, page_gimp, NULL, 1}, {"xfig", ".fig", 1, 0, 0, NULL, |
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page_xfig, NULL, 0}, {NULL, NULL, 0, 0, 0, NULL, NULL, NULL}, }; |
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|
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struct info_s info;
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|
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#define COL0 "\033[G" /* reset cursor to column 0 */ |
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|
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/* ---------------------------------------------------------------------- */
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/* callback function for progress bar */
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struct simple_progress_s {
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char name[22]; /* filename for status bar */ |
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double dnext; /* threshold value for next tick */ |
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}; |
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typedef struct simple_progress_s simple_progress_t; |
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static inline double double_of_dim(dim_t d, double def) { |
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if (d.d) {
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return d.x * d.d;
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} else {
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return d.x * def;
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} |
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} |
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|
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/* ---------------------------------------------------------------------- */
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/* calculations with bitmap dimensions, positioning etc */
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/* consider a rectangle spanned by the vectors (w,0) and (0,h). Rotate
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it counterclockwise by angle alpha. Then set the rect_t structure
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to the resulting rectangle, setting its bounding box, origin,
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x-basis and y-basis. */
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static void rotate_dim(double alpha, double w, double h, rect_t *r) { |
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double s, c, x0, x1, y0, y1;
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s = sin(alpha / 180 * M_PI);
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c = cos(alpha / 180 * M_PI);
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/* apply the transformation matrix to the basis vectors */
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x0 = c * w; |
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x1 = s * w; |
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y0 = -s * h; |
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y1 = c * h; |
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|
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/* determine bounding box and origin relative to bounding box */
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r->bb[0] = fabs(x0) + fabs(y0);
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r->bb[1] = fabs(x1) + fabs(y1);
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r->orig[0] = -min(x0, 0) - min(y0, 0); |
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r->orig[1] = -min(x1, 0) - min(y1, 0); |
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} |
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|
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/* determine the dimensions of the output based on command line and
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image dimensions */
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static void calc_dimensions(imginfo_t *imginfo) { |
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double dim_def;
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double maxwidth, maxheight, sc;
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rect_t r; |
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/* we take care of a special case: if one of the image dimensions is
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0, we change it to 1. Such an image is empty anyway, so there
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will be 0 paths in it. Changing the dimensions avoids division by
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0 error in calculating scaling factors, bounding boxes and
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such. This doesn't quite do the right thing in all cases, but it
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is better than causing overflow errors or "nan" output in
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backends. Human users don't tend to process images of size 0
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anyway; they might occur in some pipelines. */
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if (imginfo->pixwidth == 0) { |
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imginfo->pixwidth = 1;
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} |
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if (imginfo->pixheight == 0) { |
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imginfo->pixheight = 1;
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} |
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/* set the default dimension for width, height, margins */
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if (info.backend->pixel) {
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dim_def = DIM_PT; |
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} else {
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dim_def = DEFAULT_DIM; |
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} |
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/* apply default dimension to width, height, margins */
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imginfo->width = info.width_d.x == UNDEF ? UNDEF : double_of_dim(info.width_d, dim_def); |
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imginfo->height = info.height_d.x == UNDEF ? UNDEF : double_of_dim(info.height_d, dim_def); |
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imginfo->lmar = info.lmar_d.x == UNDEF ? UNDEF : double_of_dim(info.lmar_d, dim_def); |
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imginfo->rmar = info.rmar_d.x == UNDEF ? UNDEF : double_of_dim(info.rmar_d, dim_def); |
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imginfo->tmar = info.tmar_d.x == UNDEF ? UNDEF : double_of_dim(info.tmar_d, dim_def); |
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imginfo->bmar = info.bmar_d.x == UNDEF ? UNDEF : double_of_dim(info.bmar_d, dim_def); |
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/* determine width and height from desired resolution / scaling
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factor, if given */
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if (info.backend->pixel) {
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if (imginfo->width == UNDEF && info.sx != UNDEF) {
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imginfo->width = imginfo->pixwidth * info.sx; |
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} |
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if (imginfo->height == UNDEF && info.sy != UNDEF) {
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imginfo->height = imginfo->pixheight * info.sy; |
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} |
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} else {
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if (imginfo->width == UNDEF && info.rx != UNDEF) {
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imginfo->width = imginfo->pixwidth / info.rx * 72;
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} |
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if (imginfo->height == UNDEF && info.ry != UNDEF) {
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imginfo->height = imginfo->pixheight / info.ry * 72;
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} |
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} |
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/* if one of width/height is specified, determine the other */
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if (imginfo->width == UNDEF && imginfo->height != UNDEF) {
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imginfo->width = imginfo->height / imginfo->pixheight * imginfo->pixwidth / info.stretch; |
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} else
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if (imginfo->width != UNDEF && imginfo->height == UNDEF) {
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imginfo->height = imginfo->width / imginfo->pixwidth * imginfo->pixheight * info.stretch; |
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} |
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/* if width and height are still variable, figure them out */
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if (imginfo->width == UNDEF && imginfo->height == UNDEF) {
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if (info.backend->fixed) {
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/* in fixed-size backends, try to squeeze it between margins */
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maxwidth = UNDEF; |
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maxheight = UNDEF; |
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if (imginfo->lmar != UNDEF && imginfo->rmar != UNDEF) {
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maxwidth = info.paperwidth - imginfo->lmar - imginfo->rmar; |
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} |
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if (imginfo->bmar != UNDEF && imginfo->tmar != UNDEF) {
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maxheight = info.paperheight - imginfo->bmar - imginfo->tmar; |
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} |
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if (maxwidth == UNDEF && maxheight == UNDEF) {
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maxwidth = max(info.paperwidth - 144, info.paperwidth * 0.75); |
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maxheight = max(info.paperheight - 144, info.paperheight * 0.75); |
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} |
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rotate_dim(info.angle, imginfo->pixwidth, imginfo->pixheight * info.stretch, &r); |
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sc = min(maxwidth == UNDEF ? INFTY : maxwidth / r.bb[0], maxheight == UNDEF ? INFTY : maxheight / r.bb[1]); |
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imginfo->width = imginfo->pixwidth * sc; |
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imginfo->height = imginfo->pixheight * info.stretch * sc; |
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} else
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if (info.backend->pixel) {
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/* in pixel-based backends, assume default scaling factor of 1 */
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imginfo->width = imginfo->pixwidth; |
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imginfo->height = imginfo->pixheight * info.stretch; |
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} else {
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/* otherwise, choose a default size based on the default paper format */
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maxwidth = max(info.paperwidth - 144, info.paperwidth * 0.75); |
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maxheight = max(info.paperheight - 144, info.paperheight * 0.75); |
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sc = min(maxwidth / imginfo->pixwidth, maxheight / imginfo->pixheight / info.stretch); |
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imginfo->width = imginfo->pixwidth * sc; |
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imginfo->height = imginfo->pixheight * info.stretch * sc; |
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} |
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} |
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/* calculate coordinate system */
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rotate_dim(info.angle, imginfo->width, imginfo->height, &imginfo->trans); |
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/* adjust margins */
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if (info.backend->fixed) {
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if (imginfo->lmar == UNDEF && imginfo->rmar == UNDEF) {
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imginfo->lmar = (info.paperwidth - imginfo->trans.bb[0]) / 2; |
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} else
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if (imginfo->lmar == UNDEF) {
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imginfo->lmar = (info.paperwidth - imginfo->trans.bb[0] - imginfo->rmar);
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} else
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if (imginfo->lmar != UNDEF && imginfo->rmar != UNDEF) {
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imginfo->lmar += (info.paperwidth - imginfo->trans.bb[0] - imginfo->lmar - imginfo->rmar) / 2; |
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} |
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if (imginfo->bmar == UNDEF && imginfo->tmar == UNDEF) {
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imginfo->bmar = (info.paperheight - imginfo->trans.bb[1]) / 2; |
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} else
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if (imginfo->bmar == UNDEF) {
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imginfo->bmar = (info.paperheight - imginfo->trans.bb[1] - imginfo->tmar);
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} else
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if (imginfo->bmar != UNDEF && imginfo->tmar != UNDEF) {
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imginfo->bmar += (info.paperheight - imginfo->trans.bb[1] - imginfo->bmar - imginfo->tmar) / 2; |
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} |
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} else {
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if (imginfo->lmar == UNDEF) {
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imginfo->lmar = 0;
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} |
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if (imginfo->rmar == UNDEF) {
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imginfo->rmar = 0;
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} |
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if (imginfo->bmar == UNDEF) {
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imginfo->bmar = 0;
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} |
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if (imginfo->tmar == UNDEF) {
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imginfo->tmar = 0;
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} |
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} |
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} |
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|
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static FILE *my_fopen_read(const char *filename) { |
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if (filename == NULL || strcmp(filename, "-") == 0) { |
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return stdin;
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} |
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return fopen(filename, "rb"); |
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} |
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|
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static FILE *my_fopen_write(const char *filename) { |
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if (filename == NULL || strcmp(filename, "-") == 0) { |
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return stdout;
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} |
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return fopen(filename, "wb"); |
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} |
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|
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/* close a file, but do nothing is filename is NULL or "-" */
|
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static void my_fclose(FILE *f, const char *filename) { |
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if (filename == NULL || strcmp(filename, "-") == 0) { |
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return;
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} |
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fclose(f); |
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} |
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|
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/* print a simple progress bar. This is a callback function that is
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potentially called often; thus, it has been optimized for the
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typical case, which is when the progress bar does not need updating. */
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static void simple_progress(double d, void *data) { |
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simple_progress_t *p = (simple_progress_t *) data; |
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static char b[] = "========================================"; |
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int tick; /* number of visible tickmarks, 0..40 */ |
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int perc; /* visible percentage, 0..100 */ |
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|
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/* note: the 0.01 and 0.025 ensure that we always end on 40
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tickmarks and 100%, despite any rounding errors. The 0.995
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ensures that tick always increases when d >= p->dnext. */
|
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if (d >= p->dnext) {
|
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tick = (int) floor(d * 40 + 0.01); |
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perc = (int) floor(d * 100 + 0.025); |
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fprintf(stderr, "%-21s |%-40s| %d%% "COL0"", p->name, b + 40 - tick, perc); |
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p->dnext = (tick + 0.995) / 40.0; |
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} |
| 300 |
} |
| 301 |
|
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/* Initialize parameters for simple progress bar. The caller passes an
|
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allocated simple_progress_t structure to avoid having to malloc it
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here and free it later. */
|
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static inline void init_progress(potrace_progress_t *prog, simple_progress_t *p, const char *filename, int count) { |
| 306 |
const char *q, *s; |
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int len;
|
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|
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/* initialize callback function's data */
|
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p->dnext = 0;
|
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|
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if (count != 0) { |
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sprintf(p->name, " (p.%d):", count + 1); |
| 314 |
} else {
|
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s = filename; |
| 316 |
if ((q = strrchr(s, '/')) != NULL) { |
| 317 |
s = q + 1;
|
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} |
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len = strlen(s); |
| 320 |
strncpy(p->name, s, 21);
|
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p->name[20] = 0; |
| 322 |
if (len > 20) { |
| 323 |
p->name[17] = '.'; |
| 324 |
p->name[18] = '.'; |
| 325 |
p->name[19] = '.'; |
| 326 |
} |
| 327 |
strcat(p->name, ":");
|
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} |
| 329 |
|
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/* initialize progress parameters */
|
| 331 |
prog->callback = &simple_progress; |
| 332 |
prog->data = (void *) p;
|
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prog->min = 0.0; |
| 334 |
prog->max = 1.0; |
| 335 |
prog->epsilon = 0.0; |
| 336 |
|
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/* draw first progress bar */
|
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simple_progress(0.0, prog->data); |
| 339 |
return;
|
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} |
| 341 |
|
| 342 |
struct pageformat_s {
|
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char *name;
|
| 344 |
int w, h;
|
| 345 |
}; |
| 346 |
typedef struct pageformat_s pageformat_t; |
| 347 |
|
| 348 |
/* dimensions of the various page formats, in postscript points */
|
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static pageformat_t pageformat[] = {
|
| 350 |
{ "a4", 595, 842 },
|
| 351 |
{ "a3", 842, 1191 },
|
| 352 |
{ "a5", 421, 595 },
|
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{ "b5", 516, 729 },
|
| 354 |
{ "letter", 612, 792 },
|
| 355 |
{ "legal", 612, 1008 },
|
| 356 |
{ "tabloid", 792, 1224 },
|
| 357 |
{ "statement", 396, 612 },
|
| 358 |
{ "executive", 540, 720 },
|
| 359 |
{ "folio", 612, 936 },
|
| 360 |
{ "quarto", 610, 780 },
|
| 361 |
{ "10x14", 720, 1008 },
|
| 362 |
{ NULL, 0, 0 },
|
| 363 |
}; |
| 364 |
|
| 365 |
struct turnpolicy_s {
|
| 366 |
char *name;
|
| 367 |
int n;
|
| 368 |
}; |
| 369 |
typedef struct turnpolicy_s turnpolicy_t; |
| 370 |
|
| 371 |
/* names of turn policies */
|
| 372 |
static turnpolicy_t turnpolicy[] = {
|
| 373 |
{"black", POTRACE_TURNPOLICY_BLACK},
|
| 374 |
{"white", POTRACE_TURNPOLICY_WHITE},
|
| 375 |
{"left", POTRACE_TURNPOLICY_LEFT},
|
| 376 |
{"right", POTRACE_TURNPOLICY_RIGHT},
|
| 377 |
{"minority", POTRACE_TURNPOLICY_MINORITY},
|
| 378 |
{"majority", POTRACE_TURNPOLICY_MAJORITY},
|
| 379 |
{"random", POTRACE_TURNPOLICY_RANDOM},
|
| 380 |
{NULL, 0},
|
| 381 |
}; |
| 382 |
|
| 383 |
static dim_t parse_dimension(char *s, char **endptr) { |
| 384 |
char *p;
|
| 385 |
dim_t res; |
| 386 |
|
| 387 |
res.x = strtod(s, &p); |
| 388 |
res.d = 0;
|
| 389 |
if (p!=s) {
|
| 390 |
if (!strncasecmp(p, "in", 2)) { |
| 391 |
res.d = DIM_IN; |
| 392 |
p += 2;
|
| 393 |
} else if (!strncasecmp(p, "cm", 2)) { |
| 394 |
res.d = DIM_CM; |
| 395 |
p += 2;
|
| 396 |
} else if (!strncasecmp(p, "mm", 2)) { |
| 397 |
res.d = DIM_MM; |
| 398 |
p += 2;
|
| 399 |
} else if (!strncasecmp(p, "pt", 2)) { |
| 400 |
res.d = DIM_PT; |
| 401 |
p += 2;
|
| 402 |
} |
| 403 |
} |
| 404 |
if (endptr!=NULL) { |
| 405 |
*endptr = p; |
| 406 |
} |
| 407 |
return res;
|
| 408 |
} |
| 409 |
|
| 410 |
/* parse a pair of dimensions, such as "8.5x11in", "30mmx4cm" */
|
| 411 |
static void parse_dimensions(char *s, char **endptr, dim_t *dxp, dim_t *dyp) { |
| 412 |
char *p, *q;
|
| 413 |
dim_t dx, dy; |
| 414 |
|
| 415 |
dx = parse_dimension(s, &p); |
| 416 |
if (p==s) {
|
| 417 |
goto fail;
|
| 418 |
} |
| 419 |
if (*p != 'x') { |
| 420 |
goto fail;
|
| 421 |
} |
| 422 |
p++; |
| 423 |
dy = parse_dimension(p, &q); |
| 424 |
if (q==p) {
|
| 425 |
goto fail;
|
| 426 |
} |
| 427 |
if (dx.d && !dy.d) {
|
| 428 |
dy.d = dx.d; |
| 429 |
} else if (!dx.d && dy.d) { |
| 430 |
dx.d = dy.d; |
| 431 |
} |
| 432 |
*dxp = dx; |
| 433 |
*dyp = dy; |
| 434 |
if (endptr != NULL) { |
| 435 |
*endptr = q; |
| 436 |
} |
| 437 |
return;
|
| 438 |
|
| 439 |
fail:
|
| 440 |
dx.x = dx.d = dy.x = dy.d = 0;
|
| 441 |
*dxp = dx; |
| 442 |
*dyp = dy; |
| 443 |
if (endptr != NULL) { |
| 444 |
*endptr = s; |
| 445 |
} |
| 446 |
return;
|
| 447 |
} |
| 448 |
|
| 449 |
#define OPT_GROUP 300 |
| 450 |
#define OPT_OPAQUE 301 |
| 451 |
#define OPT_FILLCOLOR 302 |
| 452 |
#define OPT_PROGRESS 303 |
| 453 |
|
| 454 |
static struct option longopts[] = { |
| 455 |
{"help", 0, 0, 'h'},
|
| 456 |
{"version", 0, 0, 'v'},
|
| 457 |
{"license", 0, 0, 'l'},
|
| 458 |
{"show-defaults", 0, 0, 'V'},
|
| 459 |
{"progress", 0, 0, OPT_PROGRESS},
|
| 460 |
{"width", 1, 0, 'W'},
|
| 461 |
{"height", 1, 0, 'H'},
|
| 462 |
{"resolution", 1, 0, 'r'},
|
| 463 |
{"scale", 1, 0, 'x'},
|
| 464 |
{"stretch", 1, 0, 'S'},
|
| 465 |
{"margin", 1, 0, 'M'},
|
| 466 |
{"leftmargin", 1, 0, 'L'},
|
| 467 |
{"rightmargin", 1, 0, 'R'},
|
| 468 |
{"topmargin", 1, 0, 'T'},
|
| 469 |
{"bottommargin", 1, 0, 'B'},
|
| 470 |
{"rotate", 1, 0, 'A'},
|
| 471 |
{"pagesize", 1, 0, 'P'},
|
| 472 |
{"turdsize", 1, 0, 't'},
|
| 473 |
{"unit", 1, 0, 'u'},
|
| 474 |
{"cleartext", 0, 0, 'c'},
|
| 475 |
{"level2", 0, 0, '2'},
|
| 476 |
{"level3", 0, 0, '3'},
|
| 477 |
{"eps", 0, 0, 'e'},
|
| 478 |
{"postscript", 0, 0, 'p'},
|
| 479 |
{"svg", 0, 0, 's'},
|
| 480 |
{"pgm", 0, 0, 'g'},
|
| 481 |
{"backend", 1, 0, 'b'},
|
| 482 |
{"debug", 1, 0, 'd'},
|
| 483 |
{"color", 1, 0, 'C'},
|
| 484 |
{"fillcolor", 1, 0, OPT_FILLCOLOR},
|
| 485 |
{"turnpolicy", 1, 0, 'z'},
|
| 486 |
{"gamma", 1, 0, 'G'},
|
| 487 |
{"longcurve", 0, 0, 'n'},
|
| 488 |
{"longcoding", 0, 0, 'q'},
|
| 489 |
{"alphamax", 1, 0, 'a'},
|
| 490 |
{"opttolerance", 1, 0, 'O'},
|
| 491 |
{"output", 1, 0, 'o'},
|
| 492 |
{"blacklevel", 1, 0, 'k'},
|
| 493 |
{"invert", 0, 0, 'i'},
|
| 494 |
{"opaque", 0, 0, OPT_OPAQUE},
|
| 495 |
{"group", 0, 0, OPT_GROUP},
|
| 496 |
|
| 497 |
{0, 0, 0, 0}
|
| 498 |
}; |
| 499 |
|
| 500 |
static char *shortopts = "hvlVW:H:r:x:S:M:L:R:T:B:A:P:t:u:c23epsgb:d:C:z:G:nqa:O:o:k:i"; |
| 501 |
|
| 502 |
static void dopts(int ac, char *av[]) { |
| 503 |
int c;
|
| 504 |
char *p;
|
| 505 |
int i, j, r;
|
| 506 |
dim_t dim, dimx, dimy; |
| 507 |
int matches, bestmatch;
|
| 508 |
|
| 509 |
/* defaults */
|
| 510 |
info.backend = &backend[0];
|
| 511 |
|
| 512 |
info.debug = 0;
|
| 513 |
info.width_d.x = UNDEF; |
| 514 |
info.height_d.x = UNDEF; |
| 515 |
info.rx = UNDEF; |
| 516 |
info.ry = UNDEF; |
| 517 |
info.sx = UNDEF; |
| 518 |
info.sy = UNDEF; |
| 519 |
info.stretch = 1;
|
| 520 |
info.lmar_d.x = UNDEF; |
| 521 |
info.rmar_d.x = UNDEF; |
| 522 |
info.tmar_d.x = UNDEF; |
| 523 |
info.bmar_d.x = UNDEF; |
| 524 |
info.angle = 0;
|
| 525 |
info.paperwidth = DEFAULT_PAPERWIDTH; |
| 526 |
info.paperheight = DEFAULT_PAPERHEIGHT; |
| 527 |
info.unit = 10;
|
| 528 |
info.compress = 1;
|
| 529 |
info.pslevel = 2;
|
| 530 |
info.color = 0x000000;
|
| 531 |
info.gamma = 2.2; |
| 532 |
info.param = potrace_param_default(); |
| 533 |
if (!info.param) {
|
| 534 |
fprintf(stderr, ""POTRACE": %s\n", strerror(errno)); |
| 535 |
exit(1);
|
| 536 |
} |
| 537 |
info.longcoding = 0;
|
| 538 |
info.outfile = NULL;
|
| 539 |
info.blacklevel = 0.5; |
| 540 |
info.invert = 0;
|
| 541 |
info.opaque = 0;
|
| 542 |
info.group = 0;
|
| 543 |
info.fillcolor = 0xffffff;
|
| 544 |
info.progress = 0;
|
| 545 |
|
| 546 |
while ((c = getopt_long(ac, av, shortopts, longopts, NULL)) != -1) { |
| 547 |
switch (c) {
|
| 548 |
case OPT_PROGRESS:
|
| 549 |
info.progress = 1;
|
| 550 |
break;
|
| 551 |
case 'W': |
| 552 |
info.width_d = parse_dimension(optarg, &p); |
| 553 |
if (*p) {
|
| 554 |
fprintf(stderr, ""POTRACE": invalid dimension -- %s\n", optarg); |
| 555 |
exit(1);
|
| 556 |
} |
| 557 |
break;
|
| 558 |
case 'H': |
| 559 |
info.height_d = parse_dimension(optarg, &p); |
| 560 |
if (*p) {
|
| 561 |
fprintf(stderr, ""POTRACE": invalid dimension -- %s\n", optarg); |
| 562 |
exit(1);
|
| 563 |
} |
| 564 |
break;
|
| 565 |
case 'r': |
| 566 |
parse_dimensions(optarg, &p, &dimx, &dimy); |
| 567 |
if (*p == 0 && dimx.d == 0 && dimy.d == 0) { |
| 568 |
info.rx = dimx.x; |
| 569 |
info.ry = dimy.x; |
| 570 |
break;
|
| 571 |
} |
| 572 |
dim = parse_dimension(optarg, &p); |
| 573 |
if (*p == 0 && dim.d == 0) { |
| 574 |
info.rx = info.ry = dim.x; |
| 575 |
break;
|
| 576 |
} |
| 577 |
fprintf(stderr, ""POTRACE": invalid resolution -- %s\n", optarg); |
| 578 |
exit(1);
|
| 579 |
break;
|
| 580 |
case 'x': |
| 581 |
parse_dimensions(optarg, &p, &dimx, &dimy); |
| 582 |
if (*p == 0 && dimx.d == 0 && dimy.d == 0) { |
| 583 |
info.sx = dimx.x; |
| 584 |
info.sy = dimy.x; |
| 585 |
break;
|
| 586 |
} |
| 587 |
dim = parse_dimension(optarg, &p); |
| 588 |
if (*p == 0 && dim.d == 0) { |
| 589 |
info.sx = info.sy = dim.x; |
| 590 |
break;
|
| 591 |
} |
| 592 |
fprintf(stderr, ""POTRACE": invalid scaling factor -- %s\n", optarg); |
| 593 |
exit(1);
|
| 594 |
break;
|
| 595 |
case 'S': |
| 596 |
info.stretch = atof(optarg); |
| 597 |
break;
|
| 598 |
case 'M': |
| 599 |
info.lmar_d = parse_dimension(optarg, &p); |
| 600 |
if (*p) {
|
| 601 |
fprintf(stderr, ""POTRACE": invalid dimension -- %s\n", optarg); |
| 602 |
exit(1);
|
| 603 |
} |
| 604 |
info.rmar_d = info.tmar_d = info.bmar_d = info.lmar_d; |
| 605 |
break;
|
| 606 |
case 'L': |
| 607 |
info.lmar_d = parse_dimension(optarg, &p); |
| 608 |
if (*p) {
|
| 609 |
fprintf(stderr, ""POTRACE": invalid dimension -- %s\n", optarg); |
| 610 |
exit(1);
|
| 611 |
} |
| 612 |
break;
|
| 613 |
case 'R': |
| 614 |
info.rmar_d = parse_dimension(optarg, &p); |
| 615 |
if (*p) {
|
| 616 |
fprintf(stderr, ""POTRACE": invalid dimension -- %s\n", optarg); |
| 617 |
exit(1);
|
| 618 |
} |
| 619 |
break;
|
| 620 |
case 'T': |
| 621 |
info.tmar_d = parse_dimension(optarg, &p); |
| 622 |
if (*p) {
|
| 623 |
fprintf(stderr, ""POTRACE": invalid dimension -- %s\n", optarg); |
| 624 |
exit(1);
|
| 625 |
} |
| 626 |
break;
|
| 627 |
case 'B': |
| 628 |
info.bmar_d = parse_dimension(optarg, &p); |
| 629 |
if (*p) {
|
| 630 |
fprintf(stderr, ""POTRACE": invalid dimension -- %s\n", optarg); |
| 631 |
exit(1);
|
| 632 |
} |
| 633 |
break;
|
| 634 |
case 'A': |
| 635 |
info.angle = strtod(optarg, &p); |
| 636 |
if (*p) {
|
| 637 |
fprintf(stderr, ""POTRACE": invalid angle -- %s\n", optarg); |
| 638 |
exit(1);
|
| 639 |
} |
| 640 |
break;
|
| 641 |
case 'P': |
| 642 |
matches = 0;
|
| 643 |
bestmatch = 0;
|
| 644 |
for (i=0; pageformat[i].name!=NULL; i++) { |
| 645 |
if (strcasecmp(pageformat[i].name, optarg)==0) { |
| 646 |
matches = 1;
|
| 647 |
bestmatch = i; |
| 648 |
break;
|
| 649 |
} else if (strncasecmp(pageformat[i].name, optarg, strlen(optarg))==0) { |
| 650 |
/* don't allow partial match on "10x14" */
|
| 651 |
if (optarg[0] != '1') { |
| 652 |
matches++; |
| 653 |
bestmatch = i; |
| 654 |
} |
| 655 |
} |
| 656 |
} |
| 657 |
if (matches == 1) { |
| 658 |
info.paperwidth = pageformat[bestmatch].w; |
| 659 |
info.paperheight = pageformat[bestmatch].h; |
| 660 |
break;
|
| 661 |
} |
| 662 |
parse_dimensions(optarg, &p, &dimx, &dimy); |
| 663 |
if (*p == 0) { |
| 664 |
info.paperwidth = (int)rint(double_of_dim(dimx, DEFAULT_DIM));
|
| 665 |
info.paperheight = (int)rint(double_of_dim(dimy, DEFAULT_DIM));
|
| 666 |
break;
|
| 667 |
} |
| 668 |
if (matches == 0) { |
| 669 |
fprintf(stderr, ""POTRACE": unrecognized page format -- %s\n", optarg); |
| 670 |
} else {
|
| 671 |
fprintf(stderr, ""POTRACE": ambiguous page format -- %s\n", optarg); |
| 672 |
} |
| 673 |
j = fprintf(stderr, "Use one of: ");
|
| 674 |
for (i=0; pageformat[i].name!=NULL; i++) { |
| 675 |
if (j + strlen(pageformat[i].name) > 75) { |
| 676 |
fprintf(stderr, "\n");
|
| 677 |
j = 0;
|
| 678 |
} |
| 679 |
j += fprintf(stderr, "%s, ", pageformat[i].name);
|
| 680 |
} |
| 681 |
fprintf(stderr, "or specify <dim>x<dim>.\n");
|
| 682 |
exit(1);
|
| 683 |
break;
|
| 684 |
case 't': |
| 685 |
info.param->turdsize = atoi(optarg); |
| 686 |
break;
|
| 687 |
case 'u': |
| 688 |
info.unit = strtod(optarg, &p); |
| 689 |
if (*p) {
|
| 690 |
fprintf(stderr, ""POTRACE": invalid unit -- %s\n", optarg); |
| 691 |
exit(1);
|
| 692 |
} |
| 693 |
break;
|
| 694 |
case 'c': |
| 695 |
info.pslevel = 2;
|
| 696 |
info.compress = 0;
|
| 697 |
break;
|
| 698 |
case '2': |
| 699 |
info.pslevel = 2;
|
| 700 |
info.compress = 1;
|
| 701 |
break;
|
| 702 |
case '3': |
| 703 |
#ifdef HAVE_ZLIB
|
| 704 |
info.pslevel = 3;
|
| 705 |
info.compress = 1;
|
| 706 |
#else
|
| 707 |
fprintf(stderr, ""POTRACE": option -3 not supported, using -2 instead.\n"); |
| 708 |
info.pslevel = 2;
|
| 709 |
info.compress = 1;
|
| 710 |
#endif
|
| 711 |
break;
|
| 712 |
case 'd': |
| 713 |
info.debug = atoi(optarg); |
| 714 |
break;
|
| 715 |
case 'z': |
| 716 |
matches = 0;
|
| 717 |
bestmatch = 0;
|
| 718 |
for (i=0; turnpolicy[i].name!=NULL; i++) { |
| 719 |
if (strcasecmp(turnpolicy[i].name, optarg)==0) { |
| 720 |
matches = 1;
|
| 721 |
bestmatch = i; |
| 722 |
break;
|
| 723 |
} else if (strncasecmp(turnpolicy[i].name, optarg, strlen(optarg))==0) { |
| 724 |
matches++; |
| 725 |
bestmatch = i; |
| 726 |
} |
| 727 |
} |
| 728 |
if (matches == 1) { |
| 729 |
info.param->turnpolicy = turnpolicy[bestmatch].n; |
| 730 |
break;
|
| 731 |
} |
| 732 |
if (matches == 0) { |
| 733 |
fprintf(stderr, ""POTRACE": unrecognized turnpolicy -- %s\n", optarg); |
| 734 |
} else {
|
| 735 |
fprintf(stderr, ""POTRACE": ambiguous turnpolicy -- %s\n", optarg); |
| 736 |
} |
| 737 |
j = fprintf(stderr, "Use one of: ");
|
| 738 |
for (i=0; turnpolicy[i].name!=NULL; i++) { |
| 739 |
if (j + strlen(turnpolicy[i].name) > 75) { |
| 740 |
fprintf(stderr, "\n");
|
| 741 |
j = 0;
|
| 742 |
} |
| 743 |
j += fprintf(stderr, "%s%s", turnpolicy[i].name, turnpolicy[i+1].name ? ", " : ""); |
| 744 |
} |
| 745 |
fprintf(stderr, ".\n");
|
| 746 |
exit(1);
|
| 747 |
break;
|
| 748 |
case 'G': |
| 749 |
info.gamma = atof(optarg); |
| 750 |
break;
|
| 751 |
case 'n': |
| 752 |
info.param->opticurve = 0;
|
| 753 |
break;
|
| 754 |
case 'q': |
| 755 |
info.longcoding = 1;
|
| 756 |
break;
|
| 757 |
case 'a': |
| 758 |
info.param->alphamax = strtod(optarg, &p); |
| 759 |
|
| 760 |
if (*p) {
|
| 761 |
fprintf(stderr, ""POTRACE": invalid alphamax -- %s\n", optarg); |
| 762 |
exit(1);
|
| 763 |
} |
| 764 |
break;
|
| 765 |
case 'O': |
| 766 |
info.param->opttolerance = strtod(optarg, &p); |
| 767 |
if (*p) {
|
| 768 |
fprintf(stderr, ""POTRACE": invalid opttolerance -- %s\n", optarg); |
| 769 |
exit(1);
|
| 770 |
} |
| 771 |
break;
|
| 772 |
case 'o': |
| 773 |
free(info.outfile); |
| 774 |
info.outfile = strdup(optarg); |
| 775 |
break;
|
| 776 |
case 'k': |
| 777 |
info.blacklevel = strtod(optarg, &p); |
| 778 |
if (*p) {
|
| 779 |
fprintf(stderr, ""POTRACE": invalid blacklevel -- %s\n", optarg); |
| 780 |
exit(1);
|
| 781 |
} |
| 782 |
break;
|
| 783 |
case 'i': |
| 784 |
info.invert = 1;
|
| 785 |
break;
|
| 786 |
case OPT_OPAQUE:
|
| 787 |
info.opaque = 1;
|
| 788 |
break;
|
| 789 |
case OPT_GROUP:
|
| 790 |
info.group = 1;
|
| 791 |
break;
|
| 792 |
case '?': |
| 793 |
fprintf(stderr, "Try --help for more info\n");
|
| 794 |
exit(1);
|
| 795 |
break;
|
| 796 |
default:
|
| 797 |
fprintf(stderr, ""POTRACE": Unimplemented option -- %c\n", c); |
| 798 |
exit(1);
|
| 799 |
} |
| 800 |
} |
| 801 |
info.infiles = &av[optind]; |
| 802 |
info.infilecount = ac-optind; |
| 803 |
} |
| 804 |
|
| 805 |
static double* showList(potrace_path_t *plist) { |
| 806 |
int i;
|
| 807 |
int count;
|
| 808 |
potrace_path_t *p; |
| 809 |
int n, *tag;
|
| 810 |
potrace_dpoint_t (*c)[3];
|
| 811 |
double *memory;
|
| 812 |
|
| 813 |
p = plist; |
| 814 |
count = 0;
|
| 815 |
|
| 816 |
// Comprobamos cuanto va a ocupar la memoria a rellenar
|
| 817 |
while (p != NULL) { |
| 818 |
n = p->curve.n; |
| 819 |
tag = p->curve.tag; |
| 820 |
c = p->curve.c; |
| 821 |
count += 3; // moveTo(x, y) |
| 822 |
for (i = 0; i < n; i++) { |
| 823 |
switch (tag[i]) {
|
| 824 |
case POTRACE_CORNER:
|
| 825 |
count += 3; // lineTo(x, y) |
| 826 |
count += 3; // lineTo(x, y) |
| 827 |
break;
|
| 828 |
case POTRACE_CURVETO:
|
| 829 |
count += 7; // curveTo(x1, y1, x2, y2, x3, y3) |
| 830 |
break;
|
| 831 |
} |
| 832 |
} |
| 833 |
// at the end of a group of a positive path and its negative children, fill
|
| 834 |
if (p->next == NULL || p->next->sign == '+') |
| 835 |
count++; // closePath()
|
| 836 |
p = p->next; |
| 837 |
} |
| 838 |
count++; |
| 839 |
|
| 840 |
// Creamos la zona de memoria que devolveremos a Java
|
| 841 |
memory = (double *) malloc(sizeof(double) * count); |
| 842 |
|
| 843 |
// Rellenamos la memoria con la lista de operaciones a realizar
|
| 844 |
p = plist; |
| 845 |
count = 1;
|
| 846 |
while (p != NULL) { |
| 847 |
n = p->curve.n; |
| 848 |
tag = p->curve.tag; |
| 849 |
c = p->curve.c; |
| 850 |
|
| 851 |
// moveTo(x, y);
|
| 852 |
memory[count++] = 0;
|
| 853 |
memory[count++] = c[n - 1][2].x; |
| 854 |
memory[count++] = c[n - 1][2].y; |
| 855 |
for (i = 0; i < n; i++) { |
| 856 |
switch (tag[i]) {
|
| 857 |
case POTRACE_CORNER:
|
| 858 |
// lineTo(x, y);
|
| 859 |
memory[count++] = 1;
|
| 860 |
memory[count++] = c[i][1].x;
|
| 861 |
memory[count++] = c[i][1].y;
|
| 862 |
// lineTo(x, y);
|
| 863 |
memory[count++] = 1;
|
| 864 |
memory[count++] = c[i][2].x;
|
| 865 |
memory[count++] = c[i][2].y;
|
| 866 |
break;
|
| 867 |
case POTRACE_CURVETO:
|
| 868 |
// curveTo(x1, y1, x2, y2, x3, y3);
|
| 869 |
memory[count++] = 2;
|
| 870 |
memory[count++] = c[i][0].x;
|
| 871 |
memory[count++] = c[i][0].y;
|
| 872 |
memory[count++] = c[i][1].x;
|
| 873 |
memory[count++] = c[i][1].y;
|
| 874 |
memory[count++] = c[i][2].x;
|
| 875 |
memory[count++] = c[i][2].y;
|
| 876 |
break;
|
| 877 |
} |
| 878 |
} |
| 879 |
if (p->next == NULL || p->next->sign == '+') |
| 880 |
memory[count++] = 3;
|
| 881 |
p = p->next; |
| 882 |
} |
| 883 |
memory[0] = count;
|
| 884 |
return memory;
|
| 885 |
} |
| 886 |
|
| 887 |
static double* process_buffer(const long *inbuffer, int width, int height) { |
| 888 |
int r;
|
| 889 |
double *memory;
|
| 890 |
potrace_bitmap_t *bm = NULL;
|
| 891 |
imginfo_t imginfo; |
| 892 |
int eof_flag = 0; /* to indicate premature eof */ |
| 893 |
potrace_state_t *st; |
| 894 |
simple_progress_t progress_data; |
| 895 |
|
| 896 |
bm = (potrace_bitmap_t *) malloc (sizeof(potrace_bitmap_t));
|
| 897 |
bm->w = width; |
| 898 |
bm->h = height; |
| 899 |
int dy = (width + 32 - 1) / 32; |
| 900 |
bm->dy = dy; |
| 901 |
|
| 902 |
bm->map = (potrace_word *) inbuffer; |
| 903 |
|
| 904 |
/* prepare progress bar, if requested */
|
| 905 |
info.param->progress.callback = NULL;
|
| 906 |
|
| 907 |
// Invertir colores, el negro es blanco y el blanco es negro
|
| 908 |
if (info.invert)
|
| 909 |
bm_invert(bm); |
| 910 |
|
| 911 |
/* process the image */
|
| 912 |
|
| 913 |
st = potrace_trace(info.param, bm); |
| 914 |
if (!st || st->status != POTRACE_STATUS_OK) {
|
| 915 |
fprintf(stderr, ""POTRACE": %s\n", strerror(errno)); |
| 916 |
exit(2);
|
| 917 |
} |
| 918 |
/* calculate image dimensions */
|
| 919 |
imginfo.pixwidth = bm->w; |
| 920 |
imginfo.pixheight = bm->h; |
| 921 |
calc_dimensions(&imginfo); |
| 922 |
|
| 923 |
bm_free(bm); |
| 924 |
|
| 925 |
memory = showList(st->plist); |
| 926 |
|
| 927 |
potrace_state_free(st); |
| 928 |
|
| 929 |
if (info.progress) {
|
| 930 |
fprintf(stderr, "\n");
|
| 931 |
} |
| 932 |
|
| 933 |
return memory;
|
| 934 |
} |
| 935 |
|
| 936 |
double* vectorizarBuffer(const long *bufferIn, int width, int height, int argc, char *argv[]) { |
| 937 |
/* platform-specific initializations, e.g., set file i/o to binary */
|
| 938 |
platform_init(); |
| 939 |
|
| 940 |
// Reiniciar el contador externo de los parametros
|
| 941 |
optind = 1;
|
| 942 |
|
| 943 |
/* process options */
|
| 944 |
dopts(argc, argv); |
| 945 |
|
| 946 |
return process_buffer(bufferIn, width, height);
|
| 947 |
} |