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/*
* Copyright © 2008 Carlos Garcia Campos
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use, copy,
* modify, merge, publish, distribute, sublicense, and/or sell copies
* of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
* Author: Carlos Garcia Campos <carlosgc@gnome.org>
*/
#include <stdio.h>
#include <stdlib.h>
#include <cairo.h>
#include <libspectre/spectre.h>
#define FAIL(msg) \
do { fprintf (stderr, "FAIL: %s\n", msg); exit (-1); } while (0)
static const char *
_spectre_render_page (const char *filename,
const char *page_label,
cairo_surface_t **surface_out)
{
static const cairo_user_data_key_t key;
SpectreDocument *document;
SpectreStatus status;
int width, height, stride;
unsigned char *pixels;
cairo_surface_t *surface;
document = spectre_document_new ();
spectre_document_load (document, filename);
status = spectre_document_status (document);
if (status) {
spectre_document_free (document);
return spectre_status_to_string (status);
}
if (page_label) {
SpectrePage *page;
SpectreRenderContext *rc;
page = spectre_document_get_page_by_label (document, page_label);
spectre_document_free (document);
if (page == NULL)
return "page not found";
spectre_page_get_size (page, &width, &height);
rc = spectre_render_context_new ();
spectre_render_context_set_page_size (rc, width, height);
spectre_page_render (page, rc, &pixels, &stride);
spectre_render_context_free (rc);
status = spectre_page_status (page);
spectre_page_free (page);
if (status) {
free (pixels);
return spectre_status_to_string (status);
}
} else {
spectre_document_get_page_size (document, &width, &height);
spectre_document_render (document, &pixels, &stride);
spectre_document_free (document);
}
surface = cairo_image_surface_create_for_data (pixels,
CAIRO_FORMAT_RGB24,
width, height,
stride);
cairo_surface_set_user_data (surface, &key,
pixels, (cairo_destroy_func_t) free);
*surface_out = surface;
return NULL;
}
int main
(int argc, char *argv[])
{
const char *err;
cairo_surface_t *surface = NULL; /* silence compiler warning */
cairo_status_t status;
if (argc < 3 || argc > 4)
FAIL ("usage: ps2png input_file.ps output_file.png [page]");
err = _spectre_render_page (argv[1], argv[3], &surface);
if (err != NULL)
FAIL (err);
status = cairo_surface_write_to_png (surface, argv[2]);
cairo_surface_destroy (surface);
if (status != CAIRO_STATUS_SUCCESS)
FAIL (cairo_status_to_string (status));
return 0;
}
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