static cairo_test_status_t
preamble (cairo_test_context_t *ctx)
{
cairo_surface_t *surface;
surface = create_source_surface (SOURCE_SIZE);
if (surface == NULL) /* can't create the source so skip the test */
return CAIRO_TEST_UNTESTED;
cairo_surface_destroy (surface);
return CAIRO_TEST_SUCCESS;
}
void do_draw(void *ptr)
{
int width, height;
rendering=TRUE;
gdk_drawable_get_size(pixmap, &width, &height);
//create a gtk-independant surface to draw on
cairo_surface_t *cst = create_source_surface(width, height);
//cairo_surface_t* cst = cairo_image_surface_create(CAIRO_FORMAT_ARGB32, width, height);
cairo_t *cr = cairo_create(cst);
//cr = cairo_create(window_surface);
cairo_status_t status;
status=cairo_status(cr);
if(status)
return;
cairo_save(cr);
cairo_set_source_rgb(cr, 1, 1, 1);
cairo_paint(cr);
cairo_restore(cr);
cairo_save(cr);
cairo_set_source_rgb(cr, 0, .5, 0.2);
cairo_set_line_width (cr, 0.5);
cairo_set_antialias(cr, CAIRO_ANTIALIAS_SUBPIXEL);
// cairo_set_operator(cr, CAIRO_OPERATOR_DEST_OUT);
for(int j=0;j<20;j++)
{
for(int i=0; i<100; i++)
{
cairo_line_to(cr, rand()%width, rand()%height);
}
}
cairo_stroke(cr);
cairo_restore(cr);
cairo_destroy(cr);
cairo_t *cr_pixmap = gdk_cairo_create(pixmap);
cairo_set_source_surface (cr_pixmap, cst, 0, 0);
cairo_paint(cr_pixmap);
cairo_destroy(cr_pixmap);
rendering=FALSE;
}
static cairo_test_status_t
draw (cairo_t *cr, int width, int height)
{
cairo_surface_t *surface;
cairo_surface_t *similar;
cairo_t *cr2;
cairo_set_source_rgb (cr, 0, 0, 0);
cairo_paint (cr);
surface = create_source_surface (SOURCE_SIZE);
if (surface == NULL) /* can't create the source so skip the test */
return CAIRO_TEST_UNTESTED;
draw_pattern (&surface, SOURCE_SIZE);
/* copy a subregion to a smaller intermediate surface */
similar = cairo_surface_create_similar (surface,
CAIRO_CONTENT_COLOR_ALPHA,
INTER_SIZE, INTER_SIZE);
cr2 = cairo_create (similar);
cairo_surface_destroy (similar);
cairo_set_source_surface (cr2, surface,
(INTER_SIZE - SOURCE_SIZE)/2,
(INTER_SIZE - SOURCE_SIZE)/2);
cairo_paint (cr2);
/* and then paint onto a small surface for checking */
cairo_set_source_surface (cr, cairo_get_target (cr2),
(width - INTER_SIZE)/2,
(height - INTER_SIZE)/2);
cairo_destroy (cr2);
cairo_rectangle (cr, 16, 16, 64, 64);
cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE);
cairo_fill (cr);
/* destroy the surface last, as this triggers XCloseDisplay */
cairo_surface_destroy (surface);
return CAIRO_TEST_SUCCESS;
}
