Grcov report - pdf2png.c

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/*

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 * Copyright © 2005 Red Hat, Inc.

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 * Permission to use, copy, modify, distribute, and sell this software

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 * and its documentation for any purpose is hereby granted without

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 * fee, provided that the above copyright notice appear in all copies

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 * and that both that copyright notice and this permission notice

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 * appear in supporting documentation, and that the name of

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 * Red Hat, Inc. not be used in advertising or publicity pertaining to

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 * distribution of the software without specific, written prior

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 * permission. Red Hat, Inc. makes no representations about the

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 * suitability of this software for any purpose.  It is provided "as

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 * is" without express or implied warranty.

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 * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS

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 * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND

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 * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL,

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 * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER

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 * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION

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 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR

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 * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

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 * Author: Kristian Høgsberg <krh@redhat.com>

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*/

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#include <stdio.h>

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#include <stdlib.h>

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#include <poppler.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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#define PIXELS_PER_POINT 1

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int main (int argc, char *argv[])

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    PopplerDocument *document;

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    PopplerPage *page;

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    double width, height;

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    const char *filename = argv[1];

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    const char *output_filename = argv[2];

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    const char *page_label = argv[3];

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    gchar *absolute, *uri;

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    cairo_surface_t *surface;

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    cairo_t *cr;

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    cairo_status_t status;

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    GError *error = NULL;

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    if (argc != 4)

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	FAIL ("usage: pdf2png input_file.pdf output_file.png page");

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#if !GLIB_CHECK_VERSION(2,36,0)

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    g_type_init ();

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#endif

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    if (g_path_is_absolute(filename)) {

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	absolute = g_strdup (filename);

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    } else {

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	gchar *dir = g_get_current_dir ();

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	absolute = g_build_filename (dir, filename, (gchar *) 0);

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	g_free (dir);

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    uri = g_filename_to_uri (absolute, NULL, &error);

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    g_free (absolute);

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    if (uri == NULL)

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	FAIL (error->message);

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    document = poppler_document_new_from_file (uri, NULL, &error);

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    g_free (uri);

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    if (document == NULL)

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	FAIL (error->message);

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    page = poppler_document_get_page_by_label (document, page_label);

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    g_object_unref (document);

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    if (page == NULL)

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	FAIL ("page not found");

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    poppler_page_get_size (page, &width, &height);

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    surface = cairo_image_surface_create (CAIRO_FORMAT_RGB24, width, height);

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    cr = cairo_create (surface);

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    cairo_surface_destroy (surface);

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    cairo_set_source_rgb (cr, 1,1,1);

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    cairo_paint (cr);

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    cairo_push_group_with_content (cr, CAIRO_CONTENT_COLOR_ALPHA);

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    poppler_page_render (page, cr);

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    g_object_unref (page);

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    cairo_pop_group_to_source (cr);

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    cairo_paint (cr);

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    status = cairo_surface_write_to_png (cairo_get_target (cr),

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					 output_filename);

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    cairo_destroy (cr);

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    if (status)

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	FAIL (cairo_status_to_string (status));

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    return 0;

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