Attachment 6034 Details for Bug 6617 – Stress test case

Stress test case

font2png.c (text/x-csrc), 4.32 KB, created by Carl Worth on 2006-06-25 02:21:33 UTC

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Creator: Carl Worth

Created: 2006-06-25 02:21:33 UTC

Size: 4.32 KB

patch

obsolete

>/* cc `pkg-config --cflags cairo` `freetype-config --cflags` `pkg-config --libs cairo` `freetype-config --libs` -lpng font2png.c -o font2png
> *
> * Copyright Â© 2006 Red Hat, Inc.
> *
> * Permission to use, copy, modify, distribute, and sell this software
> * and its documentation for any purpose is hereby granted without
> * fee, provided that the above copyright notice appear in all copies
> * and that both that copyright notice and this permission notice
> * appear in supporting documentation, and that the name of
> * Red Hat, Inc. not be used in advertising or publicity pertaining to
> * distribution of the software without specific, written prior
> * permission. Red Hat, Inc. makes no representations about the
> * suitability of this software for any purpose.  It is provided "as
> * is" without express or implied warranty.
> *
> * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
> * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
> * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL,
> * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
> * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
> * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
> * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
> *
> * Author: Carl D. Worth <cworth@cworth.org>
> */
>
>#include <cairo.h>
>#include <cairo-ft.h>
>#include <assert.h>
>#include <libgen.h>
>
>int
>main (int argc, char *argv[])
>{
>    cairo_font_options_t *font_options;
>    cairo_glyph_t *glyphs = NULL;
>    int num_glyphs = 0;
>    cairo_text_extents_t extents;
>    double x, y;
>    FT_Library ft_library;
>    FT_Face ft_face;
>    cairo_font_face_t *font_face;
>    cairo_surface_t *surface;
>    cairo_t *cr;
>    cairo_scaled_font_t *scaled_font;
>    cairo_matrix_t font_matrix, ctm;
>    char *font_filename, *font_filename_copy, *png_filename, *base, *dot;
>    int font, glyph;
>
>    if (argc < 2) {
>	fprintf (stderr, "Usage: %s font-file [another-font-file ...]\n", argv[0]);
>	return 1;
>    }
>
>    if (FT_Init_FreeType (&ft_library)) {
>	fprintf (stderr, "Error: Failed to initialize freetype library.\n");
>	return 1;
>    }
>
>    for (font=1; font < argc; font++) {
>	font_filename = argv[font];
>	font_filename_copy = strdup (font_filename);
>	base = basename (font_filename_copy);
>	dot = strrchr (base, '.');
>	if (dot)
>	    *dot = '\0';
>	png_filename = malloc (strlen (base) + strlen (".png") + 1);
>	assert (png_filename);
>	sprintf (png_filename, "%s.png", base);
>	free (font_filename_copy);
>
>#define INDEX 0
>	if (FT_New_Face (ft_library, font_filename, INDEX, &ft_face) != FT_Err_Ok) {
>	    fprintf (stderr, "Error: Failed to open font file: %s\n", font_filename);
>	    continue;
>	}
>
>	printf ("Opened font file %s with %ld glyphs\n",
>		font_filename, ft_face->num_glyphs);
>
>	if (ft_face->num_glyphs > num_glyphs) {
>	    num_glyphs = ft_face->num_glyphs;
>	    glyphs = realloc (glyphs, num_glyphs * sizeof (cairo_glyph_t));
>	    assert (glyphs);
>	}
>
>	cairo_matrix_init_identity (&ctm);
>	cairo_matrix_init_identity (&font_matrix);
>	font_options = cairo_font_options_create ();
>
>	font_face = cairo_ft_font_face_create_for_ft_face (ft_face, 0);
>	scaled_font = cairo_scaled_font_create (font_face,
>						&font_matrix, &ctm,
>						font_options);
>
>	x = 0.0;
>	y = 0.0;
>	for (glyph=0; glyph < ft_face->num_glyphs; glyph++) {
>	    if (x > 800) {
>		x = 0.0;
>		y += extents.height + 2;
>	    }
>	    glyphs[glyph].index = glyph;
>	    glyphs[glyph].x = x;
>	    glyphs[glyph].y = y;
>	    cairo_scaled_font_glyph_extents (scaled_font, &glyphs[glyph], 1, &extents);
>	    x += extents.x_advance;
>	    y += extents.y_advance;
>	}
>
>	cairo_scaled_font_glyph_extents (scaled_font,
>					 glyphs, ft_face->num_glyphs,
>					 &extents);
>
>	surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32,
>					      extents.width,
>					      extents.height);
>
>	cr = cairo_create (surface);
>
>	cairo_set_font_face (cr, font_face);
>	cairo_set_font_matrix (cr, &font_matrix);
>
>	cairo_set_source_rgb (cr, 0.0, 0.0, 1.0); /* blue */
>	cairo_translate (cr, - extents.x_bearing, - extents.y_bearing);
>	cairo_show_glyphs (cr, glyphs, ft_face->num_glyphs);
>
>	cairo_surface_write_to_png (surface, png_filename);
>	free (png_filename);
>
>	cairo_destroy (cr);
>	cairo_surface_destroy (surface);
>	cairo_scaled_font_destroy (scaled_font);
>	cairo_font_face_destroy (font_face);
>	cairo_font_options_destroy (font_options);
>    }
>
>    return 0;
>}

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Attachments on bug 6617: 5906 | 6034 | 6041 | 6209 | 6351 | 6352

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