Attachment 118865 Details for Bug 92455 – Reproducer

Reproducer

test.c (text/plain), 1.48 KB, created by Uli Schlachter on 2015-10-14 07:29:59 UTC

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Creator: Uli Schlachter

Created: 2015-10-14 07:29:59 UTC

Size: 1.48 KB

patch

obsolete

>#include <cairo-xcb.h>
>
>static xcb_visualtype_t *
>lookup_visual(xcb_screen_t *s, xcb_visualid_t visual)
>{
>	xcb_depth_iterator_t d;
>	d = xcb_screen_allowed_depths_iterator(s);
>	for (; d.rem; xcb_depth_next(&d)) {
>		xcb_visualtype_iterator_t v = xcb_depth_visuals_iterator(d.data);
>		for (; v.rem; xcb_visualtype_next(&v)) {
>			if (v.data->visual_id == visual)
>				return v.data;
>		}
>	}
>
>	return NULL;
>}
>
>int main()
>{
>	xcb_connection_t *c;
>	xcb_screen_t *screen;
>	cairo_surface_t *surf;
>	cairo_device_t *device;
>	cairo_t *cr;
>
>	/* Connect to the server */
>	c = xcb_connect(NULL, NULL);
>	screen = xcb_setup_roots_iterator(xcb_get_setup(c)).data;
>
>	/* Get the cairo XCB device */
>	surf = cairo_xcb_surface_create(c, screen->root,
>			lookup_visual(screen, screen->root_visual),
>			screen->width_in_pixels, screen->height_in_pixels);
>	device = cairo_device_reference(cairo_surface_get_device(surf));
>	cairo_surface_destroy(surf);
>
>	/* Don't use RENDER */
>	cairo_xcb_device_debug_cap_xrender_version(device, -1, -1);
>
>	/* Create our surface */
>	surf = cairo_xcb_surface_create(c, screen->root,
>			lookup_visual(screen, screen->root_visual),
>			screen->width_in_pixels, screen->height_in_pixels);
>
>	/* Cause a fallback */
>	cr = cairo_create(surf);
>	cairo_set_source_rgba(cr, 1, 1, 1, 0.5);
>	cairo_move_to(cr, 0, 0);
>	cairo_line_to(cr, 2, 2);
>	cairo_stroke(cr);
>
>	/* Pretend we draw directly */
>	cairo_surface_flush(surf);
>#ifdef USE_WORKAROUND
>	cairo_surface_flush(surf);
>#endif
>	cairo_surface_mark_dirty(surf);
>
>	return 0;
>}

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Attachments on bug 92455: 118865

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