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Diffstat (limited to 'librsvg/test-rsvg.c')
| -rw-r--r-- | librsvg/test-rsvg.c | 227 |
1 files changed, 0 insertions, 227 deletions
diff --git a/librsvg/test-rsvg.c b/librsvg/test-rsvg.c deleted file mode 100644 index 49c591619..000000000 --- a/librsvg/test-rsvg.c +++ /dev/null @@ -1,227 +0,0 @@ -/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- - - test-rsvg.c: Command line utility for exercising rsvg. - - Copyright (C) 2000 Eazel, Inc. - - 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 of the - License, or (at your option) any later version. - - 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., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. - - Author: Raph Levien <raph@artofcode.com> -*/ - -#include <stdio.h> -#include <stdlib.h> -#include <png.h> -#include <popt.h> - -#include <gdk-pixbuf/gdk-pixbuf.h> - -#include "rsvg.h" - - -/* The following routine is lifted wholesale from nautilus-icon-factory.c. - It should find a permanent home somewhere else, at which point it should - be deleted here and simply linked. -RLL -*/ - -/* utility routine for saving a pixbuf to a png file. - * This was adapted from Iain Holmes' code in gnome-iconedit, and probably - * should be in a utility library, possibly in gdk-pixbuf itself. - * - * It is split up into save_pixbuf_to_file and save_pixbuf_to_file_internal - * to work around a gcc warning about handle possibly getting clobbered by - * longjmp. Declaring handle 'volatile FILE *' didn't work as it should have. - */ -static gboolean -save_pixbuf_to_file_internal (GdkPixbuf *pixbuf, char *filename, FILE *handle) -{ - char *buffer; - gboolean has_alpha; - int width, height, depth, rowstride; - guchar *pixels; - png_structp png_ptr; - png_infop info_ptr; - png_text text[2]; - int i; - - png_ptr = png_create_write_struct (PNG_LIBPNG_VER_STRING, NULL, NULL, NULL); - if (png_ptr == NULL) { - return FALSE; - } - - info_ptr = png_create_info_struct (png_ptr); - if (info_ptr == NULL) { - png_destroy_write_struct (&png_ptr, (png_infopp)NULL); - return FALSE; - } - - if (setjmp (png_ptr->jmpbuf)) { - png_destroy_write_struct (&png_ptr, &info_ptr); - return FALSE; - } - - png_init_io (png_ptr, (FILE *)handle); - - has_alpha = gdk_pixbuf_get_has_alpha (pixbuf); - width = gdk_pixbuf_get_width (pixbuf); - height = gdk_pixbuf_get_height (pixbuf); - depth = gdk_pixbuf_get_bits_per_sample (pixbuf); - pixels = gdk_pixbuf_get_pixels (pixbuf); - rowstride = gdk_pixbuf_get_rowstride (pixbuf); - - png_set_IHDR (png_ptr, info_ptr, width, height, - depth, PNG_COLOR_TYPE_RGB_ALPHA, - PNG_INTERLACE_NONE, - PNG_COMPRESSION_TYPE_DEFAULT, - PNG_FILTER_TYPE_DEFAULT); - - /* Some text to go with the png image */ - text[0].key = "Title"; - text[0].text = filename; - text[0].compression = PNG_TEXT_COMPRESSION_NONE; - text[1].key = "Software"; - text[1].text = "Test-Rsvg"; - text[1].compression = PNG_TEXT_COMPRESSION_NONE; - png_set_text (png_ptr, info_ptr, text, 2); - - /* Write header data */ - png_write_info (png_ptr, info_ptr); - - /* if there is no alpha in the data, allocate buffer to expand into */ - if (has_alpha) { - buffer = NULL; - } else { - buffer = g_malloc(4 * width); - } - - /* pump the raster data into libpng, one scan line at a time */ - for (i = 0; i < height; i++) { - if (has_alpha) { - png_bytep row_pointer = pixels; - png_write_row (png_ptr, row_pointer); - } else { - /* expand RGB to RGBA using an opaque alpha value */ - int x; - char *buffer_ptr = buffer; - char *source_ptr = pixels; - for (x = 0; x < width; x++) { - *buffer_ptr++ = *source_ptr++; - *buffer_ptr++ = *source_ptr++; - *buffer_ptr++ = *source_ptr++; - *buffer_ptr++ = 255; - } - png_write_row (png_ptr, (png_bytep) buffer); - } - pixels += rowstride; - } - - png_write_end (png_ptr, info_ptr); - png_destroy_write_struct (&png_ptr, &info_ptr); - - g_free (buffer); - - return TRUE; -} - -static gboolean -save_pixbuf_to_file (GdkPixbuf *pixbuf, char *filename) -{ - FILE *handle; - gboolean result; - - g_return_val_if_fail (pixbuf != NULL, FALSE); - g_return_val_if_fail (filename != NULL, FALSE); - g_return_val_if_fail (filename[0] != '\0', FALSE); - - if (!strcmp (filename, "-")) { - handle = stdout; - } else { - handle = fopen (filename, "wb"); - } - - if (handle == NULL) { - return FALSE; - } - - result = save_pixbuf_to_file_internal (pixbuf, filename, handle); - if (!result || handle != stdout) - fclose (handle); - - return result; -} - -int -main (int argc, char **argv) -{ - FILE *f; - char *out_fn; - GdkPixbuf *pixbuf; - char *zoom_str = "1.0"; - int n_iter = 1; - poptContext optCtx; - struct poptOption optionsTable[] = { - { "zoom", 'z', POPT_ARG_STRING, &zoom_str, 0, NULL, "zoom factor" }, - { "num-iter", 'n', POPT_ARG_INT, &n_iter, 0, NULL, "number of iterations" }, - POPT_AUTOHELP - { NULL, 0, 0, NULL, 0 } - }; - char c; - const char * const *args; - int i; - - optCtx = poptGetContext ("test-rsvg", argc, (const char **)argv, optionsTable, 0); - - c = poptGetNextOpt (optCtx); - args = poptGetArgs (optCtx); - - for (i = 0; i < n_iter; i++) { - if (args == NULL || args[0] == NULL) { - if (n_iter > 1) { - fprintf (stderr, "Can't do multiple iterations on stdin\n"); - exit (1); - } - - f = stdin; - out_fn = "-"; - } else { - f = fopen(args[0], "r"); - if (f == NULL) { - fprintf(stderr, "Error opening source file %s\n", argv[0]); - } - if (args[1] == NULL) - out_fn = "-"; - else - out_fn = (char *)args[1]; - } - - pixbuf = rsvg_render_file (f, atof (zoom_str)); - - if (f != stdin) - fclose(f); - - if (pixbuf != NULL) { - if (n_iter > 1) - gdk_pixbuf_unref (pixbuf); - else - save_pixbuf_to_file (pixbuf, out_fn); - } else { - fprintf (stderr, "Error loading SVG file.\n"); - return 1; - } - } - - return 0; -} |