forked from AuroraMiddleware/gtk
121 lines
3.1 KiB
C
121 lines
3.1 KiB
C
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#include <gtk.h>
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static gboolean
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compare_pixels (int width,
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int height,
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guchar *data1,
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gsize stride1,
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guchar *data2,
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gsize stride2)
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{
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int i;
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for (i = 0; i < height; i++)
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{
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gconstpointer p1 = data1 + i * stride1;
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gconstpointer p2 = data2 + i * stride2;
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if (memcmp (p1, p2, width * 4) != 0)
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return FALSE;
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}
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return TRUE;
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}
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static void
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test_texture_from_pixbuf (void)
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{
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GdkPixbuf *pixbuf;
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GdkTexture *texture;
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GError *error = NULL;
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guchar *data;
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int width, height;
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gsize stride;
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cairo_surface_t *surface;
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cairo_t *cr;
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pixbuf = gdk_pixbuf_new_from_resource ("/org/gtk/libgtk/icons/16x16/places/user-trash.png", &error);
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g_assert_no_error (error);
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g_assert_nonnull (pixbuf);
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g_assert_true (gdk_pixbuf_get_has_alpha (pixbuf));
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width = gdk_pixbuf_get_width (pixbuf);
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height = gdk_pixbuf_get_height (pixbuf);
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texture = gdk_texture_new_for_pixbuf (pixbuf);
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g_assert_nonnull (texture);
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g_assert_cmpint (gdk_texture_get_width (texture), ==, width);
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g_assert_cmpint (gdk_texture_get_height (texture), ==, height);
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stride = 4 * width;
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data = g_new0 (guchar, stride * height);
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gdk_texture_download (texture, data, stride);
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surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, width, height);
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cr = cairo_create (surface);
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gdk_cairo_set_source_pixbuf (cr, pixbuf, 0, 0);
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cairo_paint (cr);
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cairo_destroy (cr);
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g_assert_true (compare_pixels (width, height,
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data, stride,
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cairo_image_surface_get_data (surface),
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cairo_image_surface_get_stride (surface)));
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g_free (data);
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g_object_unref (pixbuf);
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g_object_unref (texture);
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cairo_surface_destroy (surface);
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}
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static void
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test_texture_from_resource (void)
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{
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GdkTexture *texture;
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int width, height;
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texture = gdk_texture_new_from_resource ("/org/gtk/libgtk/icons/16x16/places/user-trash.png");
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g_assert_nonnull (texture);
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g_object_get (texture,
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"width", &width,
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"height", &height,
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NULL);
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g_assert_cmpint (width, ==, 16);
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g_assert_cmpint (height, ==, 16);
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g_object_unref (texture);
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}
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static void
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test_texture_save_to_png (void)
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{
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GdkTexture *texture;
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GError *error = NULL;
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GFile *file;
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GdkTexture *texture2;
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texture = gdk_texture_new_from_resource ("/org/gtk/libgtk/icons/16x16/places/user-trash.png");
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gdk_texture_save_to_png (texture, "test.png");
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file = g_file_new_for_path ("test.png");
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texture2 = gdk_texture_new_from_file (file, &error);
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g_object_unref (file);
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g_assert_no_error (error);
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g_object_unref (texture);
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g_object_unref (texture2);
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}
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int
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main (int argc, char *argv[])
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{
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/* We want to use resources from libgtk, so we need gtk initialized */
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gtk_test_init (&argc, &argv, NULL);
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g_test_add_func ("/texture/from-pixbuf", test_texture_from_pixbuf);
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g_test_add_func ("/texture/from-resource", test_texture_from_resource);
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g_test_add_func ("/texture/save-to-png", test_texture_save_to_png);
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return g_test_run ();
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}
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