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