150 lines
4.4 KiB
C
150 lines
4.4 KiB
C
/* This file is part of GTK+
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*
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* AUTHORS
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* Sven Herzberg
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*
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* Copyright (C) 2008 Sven Herzberg
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*
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* This work is provided "as is"; redistribution and modification
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* in whole or in part, in any medium, physical or electronic is
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* permitted without restriction.
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*
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* This work is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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*
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* In no event shall the authors or contributors be liable for any
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* direct, indirect, incidental, special, exemplary, or consequential
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* damages (including, but not limited to, procurement of substitute
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* goods or services; loss of use, data, or profits; or business
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* interruption) however caused and on any theory of liability, whether
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* in contract, strict liability, or tort (including negligence or
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* otherwise) arising in any way out of the use of this software, even
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* if advised of the possibility of such damage.
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*/
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#include <glib/gstdio.h>
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#include <gdk/gdk.h>
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#ifdef CAIRO_HAS_QUARTZ_SURFACE
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#include <cairo-quartz.h>
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#endif
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static void
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test (cairo_t* cr)
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{
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cairo_save (cr);
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cairo_set_source_rgb (cr, 1.0, 1.0, 1.0);
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cairo_paint (cr);
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cairo_restore (cr);
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cairo_move_to (cr, 10.0, 20.0);
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cairo_line_to (cr, 10.0, 30.0);
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cairo_stroke (cr);
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cairo_set_source_rgba (cr, 0.0, 0.0, 0.0, 0.5);
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cairo_arc (cr, 0.0, 0.0, 10.0, 0.0, G_PI/2);
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cairo_stroke (cr);
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}
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static void
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test_surface_orientation (void)
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{
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cairo_surface_t *surface;
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GdkPixbuf* pixbuf;
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GdkPixbuf* pbuf_platform;
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GdkPixbuf* pbuf_imagesrf;
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GError * error = NULL;
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cairo_surface_t* surface;
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cairo_t* cr;
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guchar* data_platform;
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guchar* data_imagesrf;
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guint i;
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/* create "platform.png" via native cairo surface */
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surface = gdk_window_create_similar_surface (gdk_get_default_root_window (),
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CAIRO_CONTENT_COLOR,
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100,
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80);
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cr = cairo_create (surface);
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test (cr);
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cairo_destroy (cr);
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pixbuf = gdk_pixbuf_get_from_surface (NULL,
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surface,
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0, 0,
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0, 0,
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100, 80);
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if (!gdk_pixbuf_save (pixbuf, "gdksurface.png", "png", NULL, NULL)) {
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g_error ("Eeek! Couldn't save the file \"gdksurface.png\"");
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}
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g_object_unref (pixbuf);
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cairo_surface_destroy (surface);
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/* create "cairosurface.png" via pure cairo */
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#ifndef CAIRO_HAS_QUARTZ_SURFACE
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surface = cairo_image_surface_create (CAIRO_FORMAT_RGB24, 100, 80);
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#else
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surface = cairo_quartz_surface_create (CAIRO_FORMAT_RGB24, 100, 80);
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#endif
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cr = cairo_create (surface);
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test (cr);
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cairo_destroy (cr);
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if (CAIRO_STATUS_SUCCESS != cairo_surface_write_to_png (surface, "cairosurface.png")) {
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g_error ("Eeek! Couldn't save the file \"cairosurface.png\"");
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}
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cairo_surface_destroy (surface);
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/* compare the images */
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pbuf_platform = gdk_pixbuf_new_from_file ("gdksurface.png", &error);
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if (!pbuf_platform || error) {
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g_error ("Eeek! Error loading \"gdksurface.png\"");
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}
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pbuf_imagesrf = gdk_pixbuf_new_from_file ("cairosurface.png", &error);
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if (!pbuf_imagesrf || error) {
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g_object_unref (pbuf_platform);
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g_error ("Eeek! Error loading \"cairosurface.png\"");
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}
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g_assert (gdk_pixbuf_get_width (pbuf_platform) ==
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gdk_pixbuf_get_width (pbuf_imagesrf));
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g_assert (gdk_pixbuf_get_height (pbuf_platform) ==
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gdk_pixbuf_get_height (pbuf_imagesrf));
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g_assert (gdk_pixbuf_get_rowstride (pbuf_platform) ==
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gdk_pixbuf_get_rowstride (pbuf_imagesrf));
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g_assert (gdk_pixbuf_get_n_channels (pbuf_platform) ==
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gdk_pixbuf_get_n_channels (pbuf_imagesrf));
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data_platform = gdk_pixbuf_get_pixels (pbuf_platform);
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data_imagesrf = gdk_pixbuf_get_pixels (pbuf_imagesrf);
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for (i = 0; i < gdk_pixbuf_get_height (pbuf_platform) * gdk_pixbuf_get_rowstride (pbuf_platform); i++) {
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if (data_platform[i] != data_imagesrf[i]) {
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g_warning ("Eeek! Images are differing at byte %d", i);
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g_object_unref (pbuf_platform);
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g_object_unref (pbuf_imagesrf);
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g_assert_not_reached ();
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}
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}
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g_object_unref (pbuf_platform);
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g_object_unref (pbuf_imagesrf);
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g_unlink ("gdksurface.png");
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g_unlink ("cairosurface.png");
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}
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int
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main (int argc,
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char**argv)
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{
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g_test_init (&argc, &argv, NULL);
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gdk_init (&argc, &argv);
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g_test_add_func ("/gdk/surface/orientation",
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test_surface_orientation);
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return g_test_run ();
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}
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