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/* cairo - a vector graphics library with display and print output
*
* Copyright © 2002 University of Southern California
* Copyright © 2009 Intel Corporation
*
* This library is free software; you can redistribute it and/or
* modify it either under the terms of the GNU Lesser General Public
* License version 2.1 as published by the Free Software Foundation
* (the "LGPL") or, at your option, under the terms of the Mozilla
* Public License Version 1.1 (the "MPL"). If you do not alter this
* notice, a recipient may use your version of this file under either
* the MPL or the LGPL.
*
* You should have received a copy of the LGPL along with this library
* in the file COPYING-LGPL-2.1; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA
* You should have received a copy of the MPL along with this library
* in the file COPYING-MPL-1.1
*
* The contents of this file are subject to the Mozilla Public License
* Version 1.1 (the "License"); you may not use this file except in
* compliance with the License. You may obtain a copy of the License at
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
* OF ANY KIND, either express or implied. See the LGPL or the MPL for
* the specific language governing rights and limitations.
*
* The Original Code is the cairo graphics library.
*
* The Initial Developer of the Original Code is University of Southern
* California.
*
* Contributor(s):
* Carl D. Worth <cworth@cworth.org>
* Chris Wilson <chris@chris-wilson.co.uk>
*/
#include "cairoint.h"
#if CAIRO_HAS_XLIB_XCB_FUNCTIONS
#include "cairo-xlib.h"
#include "cairo-xcb.h"
#include "cairo-xcb-private.h"
#include "cairo-xlib-xrender-private.h"
#include "cairo-default-context-private.h"
#include "cairo-list-inline.h"
#include "cairo-image-surface-private.h"
#include "cairo-surface-backend-private.h"
#include <X11/Xlib-xcb.h>
#include <X11/Xlibint.h> /* For XESetCloseDisplay */
struct cairo_xlib_xcb_display_t {
cairo_device_t base;
Display *dpy;
cairo_device_t *xcb_device;
XExtCodes *codes;
cairo_list_t link;
};
typedef struct cairo_xlib_xcb_display_t cairo_xlib_xcb_display_t;
/* List of all #cairo_xlib_xcb_display_t alive,
* protected by _cairo_xlib_display_mutex */
static cairo_list_t displays;
static cairo_surface_t *
_cairo_xlib_xcb_surface_create (void *dpy,
void *scr,
void *visual,
void *format,
cairo_surface_t *xcb);
static cairo_surface_t *
_cairo_xlib_xcb_surface_create_similar (void *abstract_other,
cairo_content_t content,
int width,
int height)
{
cairo_xlib_xcb_surface_t *other = abstract_other;
cairo_surface_t *xcb;
xcb = other->xcb->base.backend->create_similar (other->xcb, content, width, height);
if (unlikely (xcb == NULL || xcb->status))
return xcb;
return _cairo_xlib_xcb_surface_create (other->display, other->screen, NULL, NULL, xcb);
}
static cairo_status_t
_cairo_xlib_xcb_surface_finish (void *abstract_surface)
{
cairo_xlib_xcb_surface_t *surface = abstract_surface;
cairo_status_t status;
cairo_surface_finish (&surface->xcb->base);
status = surface->xcb->base.status;
cairo_surface_destroy (&surface->xcb->base);
surface->xcb = NULL;
return status;
}
static cairo_surface_t *
_cairo_xlib_xcb_surface_create_similar_image (void *abstract_other,
cairo_format_t format,
int width,
int height)
{
cairo_xlib_xcb_surface_t *surface = abstract_other;
return cairo_surface_create_similar_image (&surface->xcb->base, format, width, height);
}
static cairo_image_surface_t *
_cairo_xlib_xcb_surface_map_to_image (void *abstract_surface,
const cairo_rectangle_int_t *extents)
{
cairo_xlib_xcb_surface_t *surface = abstract_surface;
return _cairo_surface_map_to_image (&surface->xcb->base, extents);
}
static cairo_int_status_t
_cairo_xlib_xcb_surface_unmap (void *abstract_surface,
cairo_image_surface_t *image)
{
cairo_xlib_xcb_surface_t *surface = abstract_surface;
return _cairo_surface_unmap_image (&surface->xcb->base, image);
}
static cairo_surface_t *
_cairo_xlib_xcb_surface_source (void *abstract_surface,
cairo_rectangle_int_t *extents)
{
cairo_xlib_xcb_surface_t *surface = abstract_surface;
return _cairo_surface_get_source (&surface->xcb->base, extents);
}
static cairo_status_t
_cairo_xlib_xcb_surface_acquire_source_image (void *abstract_surface,
cairo_image_surface_t **image_out,
void **image_extra)
{
cairo_xlib_xcb_surface_t *surface = abstract_surface;
return _cairo_surface_acquire_source_image (&surface->xcb->base,
image_out, image_extra);
}
static void
_cairo_xlib_xcb_surface_release_source_image (void *abstract_surface,
cairo_image_surface_t *image_out,
void *image_extra)
{
cairo_xlib_xcb_surface_t *surface = abstract_surface;
_cairo_surface_release_source_image (&surface->xcb->base, image_out, image_extra);
}
static cairo_bool_t
_cairo_xlib_xcb_surface_get_extents (void *abstract_surface,
cairo_rectangle_int_t *extents)
{
cairo_xlib_xcb_surface_t *surface = abstract_surface;
return _cairo_surface_get_extents (&surface->xcb->base, extents);
}
static void
_cairo_xlib_xcb_surface_get_font_options (void *abstract_surface,
cairo_font_options_t *options)
{
cairo_xlib_xcb_surface_t *surface = abstract_surface;
cairo_surface_get_font_options (&surface->xcb->base, options);
}
static cairo_int_status_t
_cairo_xlib_xcb_surface_paint (void *abstract_surface,
cairo_operator_t op,
const cairo_pattern_t *source,
const cairo_clip_t *clip)
{
cairo_xlib_xcb_surface_t *surface = abstract_surface;
return _cairo_surface_paint (&surface->xcb->base, op, source, clip);
}
static cairo_int_status_t
_cairo_xlib_xcb_surface_mask (void *abstract_surface,
cairo_operator_t op,
const cairo_pattern_t *source,
const cairo_pattern_t *mask,
const cairo_clip_t *clip)
{
cairo_xlib_xcb_surface_t *surface = abstract_surface;
return _cairo_surface_mask (&surface->xcb->base, op, source, mask, clip);
}
static cairo_int_status_t
_cairo_xlib_xcb_surface_stroke (void *abstract_surface,
cairo_operator_t op,
const cairo_pattern_t *source,
const cairo_path_fixed_t *path,
const cairo_stroke_style_t *style,
const cairo_matrix_t *ctm,
const cairo_matrix_t *ctm_inverse,
double tolerance,
cairo_antialias_t antialias,
const cairo_clip_t *clip)
{
cairo_xlib_xcb_surface_t *surface = abstract_surface;
return _cairo_surface_stroke (&surface->xcb->base,
op, source, path, style, ctm, ctm_inverse,
tolerance, antialias, clip);
}
static cairo_int_status_t
_cairo_xlib_xcb_surface_fill (void *abstract_surface,
cairo_operator_t op,
const cairo_pattern_t *source,
const cairo_path_fixed_t *path,
cairo_fill_rule_t fill_rule,
double tolerance,
cairo_antialias_t antialias,
const cairo_clip_t *clip)
{
cairo_xlib_xcb_surface_t *surface = abstract_surface;
return _cairo_surface_fill (&surface->xcb->base,
op, source, path,
fill_rule, tolerance,
antialias, clip);
}
static cairo_int_status_t
_cairo_xlib_xcb_surface_glyphs (void *abstract_surface,
cairo_operator_t op,
const cairo_pattern_t *source,
cairo_glyph_t *glyphs,
int num_glyphs,
cairo_scaled_font_t *scaled_font,
const cairo_clip_t *clip)
{
cairo_xlib_xcb_surface_t *surface = abstract_surface;
return _cairo_surface_show_text_glyphs (&surface->xcb->base, op, source,
NULL, 0,
glyphs, num_glyphs,
NULL, 0, 0,
scaled_font, clip);
}
static cairo_status_t
_cairo_xlib_xcb_surface_flush (void *abstract_surface, unsigned flags)
{
cairo_xlib_xcb_surface_t *surface = abstract_surface;
/* We have to call cairo_surface_flush() to make sure snapshots are detached */
return _cairo_surface_flush (&surface->xcb->base, flags);
}
static cairo_status_t
_cairo_xlib_xcb_surface_mark_dirty (void *abstract_surface,
int x, int y,
int width, int height)
{
cairo_xlib_xcb_surface_t *surface = abstract_surface;
cairo_surface_mark_dirty_rectangle (&surface->xcb->base, x, y, width, height);
return cairo_surface_status (&surface->xcb->base);
}
static const cairo_surface_backend_t _cairo_xlib_xcb_surface_backend = {
CAIRO_SURFACE_TYPE_XLIB,
_cairo_xlib_xcb_surface_finish,
_cairo_default_context_create, /* XXX */
_cairo_xlib_xcb_surface_create_similar,
_cairo_xlib_xcb_surface_create_similar_image,
_cairo_xlib_xcb_surface_map_to_image,
_cairo_xlib_xcb_surface_unmap,
_cairo_xlib_xcb_surface_source,
_cairo_xlib_xcb_surface_acquire_source_image,
_cairo_xlib_xcb_surface_release_source_image,
NULL, /* snapshot */
NULL, /* copy_page */
NULL, /* show_page */
_cairo_xlib_xcb_surface_get_extents,
_cairo_xlib_xcb_surface_get_font_options,
_cairo_xlib_xcb_surface_flush,
_cairo_xlib_xcb_surface_mark_dirty,
_cairo_xlib_xcb_surface_paint,
_cairo_xlib_xcb_surface_mask,
_cairo_xlib_xcb_surface_stroke,
_cairo_xlib_xcb_surface_fill,
NULL, /* fill_stroke */
_cairo_xlib_xcb_surface_glyphs,
};
static void
_cairo_xlib_xcb_display_finish (void *abstract_display)
{
cairo_xlib_xcb_display_t *display = (cairo_xlib_xcb_display_t *) abstract_display;
CAIRO_MUTEX_LOCK (_cairo_xlib_display_mutex);
cairo_list_del (&display->link);
CAIRO_MUTEX_UNLOCK (_cairo_xlib_display_mutex);
cairo_device_destroy (display->xcb_device);
display->xcb_device = NULL;
XESetCloseDisplay (display->dpy, display->codes->extension, NULL);
/* Drop the reference from _cairo_xlib_xcb_device_create */
cairo_device_destroy (&display->base);
}
static int
_cairo_xlib_xcb_close_display(Display *dpy, XExtCodes *codes)
{
cairo_xlib_xcb_display_t *display;
CAIRO_MUTEX_LOCK (_cairo_xlib_display_mutex);
cairo_list_foreach_entry (display,
cairo_xlib_xcb_display_t,
&displays,
link)
{
if (display->dpy == dpy)
{
/* _cairo_xlib_xcb_display_finish will lock the mutex again
* -> deadlock (This mutex isn't recursive) */
cairo_device_reference (&display->base);
CAIRO_MUTEX_UNLOCK (_cairo_xlib_display_mutex);
/* Make sure the xcb and xlib-xcb devices are finished */
cairo_device_finish (display->xcb_device);
cairo_device_finish (&display->base);
cairo_device_destroy (&display->base);
return 0;
}
}
CAIRO_MUTEX_UNLOCK (_cairo_xlib_display_mutex);
return 0;
}
static const cairo_device_backend_t _cairo_xlib_xcb_device_backend = {
CAIRO_DEVICE_TYPE_XLIB,
NULL,
NULL,
NULL, /* flush */
_cairo_xlib_xcb_display_finish,
free, /* destroy */
};
static cairo_device_t *
_cairo_xlib_xcb_device_create (Display *dpy, cairo_device_t *xcb_device)
{
cairo_xlib_xcb_display_t *display = NULL;
cairo_device_t *device;
if (xcb_device == NULL)
return NULL;
CAIRO_MUTEX_INITIALIZE ();
CAIRO_MUTEX_LOCK (_cairo_xlib_display_mutex);
if (displays.next == NULL) {
cairo_list_init (&displays);
}
cairo_list_foreach_entry (display,
cairo_xlib_xcb_display_t,
&displays,
link)
{
if (display->dpy == dpy) {
/* Maintain MRU order. */
if (displays.next != &display->link)
cairo_list_move (&display->link, &displays);
/* Grab a reference for our caller */
device = cairo_device_reference (&display->base);
assert (display->xcb_device == xcb_device);
goto unlock;
}
}
display = _cairo_malloc (sizeof (cairo_xlib_xcb_display_t));
if (unlikely (display == NULL)) {
device = _cairo_device_create_in_error (CAIRO_STATUS_NO_MEMORY);
goto unlock;
}
display->codes = XAddExtension (dpy);
if (unlikely (display->codes == NULL)) {
device = _cairo_device_create_in_error (CAIRO_STATUS_NO_MEMORY);
free (display);
goto unlock;
}
_cairo_device_init (&display->base, &_cairo_xlib_xcb_device_backend);
XESetCloseDisplay (dpy, display->codes->extension, _cairo_xlib_xcb_close_display);
/* Add a reference for _cairo_xlib_xcb_display_finish. This basically means
* that the device's reference count never drops to zero
* as long as our Display* is alive. We need this because there is no
* "XDelExtension" to undo XAddExtension and having lots of registered
* extensions slows down libX11. */
cairo_device_reference (&display->base);
display->dpy = dpy;
display->xcb_device = cairo_device_reference(xcb_device);
cairo_list_add (&display->link, &displays);
device = &display->base;
unlock:
CAIRO_MUTEX_UNLOCK (_cairo_xlib_display_mutex);
return device;
}
static cairo_surface_t *
_cairo_xlib_xcb_surface_create (void *dpy,
void *scr,
void *visual,
void *format,
cairo_surface_t *xcb)
{
cairo_xlib_xcb_surface_t *surface;
if (unlikely (xcb->status))
return xcb;
surface = _cairo_malloc (sizeof (*surface));
if (unlikely (surface == NULL)) {
cairo_surface_destroy (xcb);
return _cairo_surface_create_in_error (CAIRO_STATUS_NO_MEMORY);
}
_cairo_surface_init (&surface->base,
&_cairo_xlib_xcb_surface_backend,
_cairo_xlib_xcb_device_create (dpy, xcb->device),
xcb->content,
FALSE); /* is_vector */
/* _cairo_surface_init() got another reference to the device, drop ours */
cairo_device_destroy (surface->base.device);
surface->display = dpy;
surface->screen = scr;
surface->visual = visual;
surface->format = format;
surface->xcb = (cairo_xcb_surface_t *) xcb;
return &surface->base;
}
static Screen *
_cairo_xlib_screen_from_visual (Display *dpy, Visual *visual)
{
int s, d, v;
for (s = 0; s < ScreenCount (dpy); s++) {
Screen *screen;
screen = ScreenOfDisplay (dpy, s);
if (visual == DefaultVisualOfScreen (screen))
return screen;
for (d = 0; d < screen->ndepths; d++) {
Depth *depth;
depth = &screen->depths[d];
for (v = 0; v < depth->nvisuals; v++)
if (visual == &depth->visuals[v])
return screen;
}
}
return NULL;
}
cairo_surface_t *
cairo_xlib_surface_create (Display *dpy,
Drawable drawable,
Visual *visual,
int width,
int height)
{
Screen *scr;
xcb_visualtype_t xcb_visual;
scr = _cairo_xlib_screen_from_visual (dpy, visual);
if (scr == NULL)
return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_INVALID_VISUAL));
xcb_visual.visual_id = visual->visualid;
#if defined(__cplusplus) || defined(c_plusplus)
xcb_visual._class = visual->c_class;
#else
xcb_visual._class = visual->class;
#endif
xcb_visual.bits_per_rgb_value = visual->bits_per_rgb;
xcb_visual.colormap_entries = visual->map_entries;
xcb_visual.red_mask = visual->red_mask;
xcb_visual.green_mask = visual->green_mask;
xcb_visual.blue_mask = visual->blue_mask;
return _cairo_xlib_xcb_surface_create (dpy, scr, visual, NULL,
cairo_xcb_surface_create (XGetXCBConnection (dpy),
drawable,
&xcb_visual,
width, height));
}
static xcb_screen_t *
_cairo_xcb_screen_from_root (xcb_connection_t *connection,
xcb_window_t id)
{
xcb_screen_iterator_t s;
s = xcb_setup_roots_iterator (xcb_get_setup (connection));
for (; s.rem; xcb_screen_next (&s)) {
if (s.data->root == id)
return s.data;
}
return NULL;
}
cairo_surface_t *
cairo_xlib_surface_create_for_bitmap (Display *dpy,
Pixmap bitmap,
Screen *scr,
int width,
int height)
{
xcb_connection_t *connection = XGetXCBConnection (dpy);
xcb_screen_t *screen = _cairo_xcb_screen_from_root (connection, (xcb_window_t) scr->root);
return _cairo_xlib_xcb_surface_create (dpy, scr, NULL, NULL,
cairo_xcb_surface_create_for_bitmap (connection,
screen,
bitmap,
width, height));
}
#if CAIRO_HAS_XLIB_XRENDER_SURFACE
cairo_surface_t *
cairo_xlib_surface_create_with_xrender_format (Display *dpy,
Drawable drawable,
Screen *scr,
XRenderPictFormat *format,
int width,
int height)
{
xcb_render_pictforminfo_t xcb_format;
xcb_connection_t *connection;
xcb_screen_t *screen;
xcb_format.id = format->id;
xcb_format.type = format->type;
xcb_format.depth = format->depth;
xcb_format.direct.red_shift = format->direct.red;
xcb_format.direct.red_mask = format->direct.redMask;
xcb_format.direct.green_shift = format->direct.green;
xcb_format.direct.green_mask = format->direct.greenMask;
xcb_format.direct.blue_shift = format->direct.blue;
xcb_format.direct.blue_mask = format->direct.blueMask;
xcb_format.direct.alpha_shift = format->direct.alpha;
xcb_format.direct.alpha_mask = format->direct.alphaMask;
xcb_format.colormap = format->colormap;
connection = XGetXCBConnection (dpy);
screen = _cairo_xcb_screen_from_root (connection, (xcb_window_t) scr->root);
return _cairo_xlib_xcb_surface_create (dpy, scr, NULL, format,
cairo_xcb_surface_create_with_xrender_format (connection, screen,
drawable,
&xcb_format,
width, height));
}
XRenderPictFormat *
cairo_xlib_surface_get_xrender_format (cairo_surface_t *surface)
{
cairo_xlib_xcb_surface_t *xlib_surface = (cairo_xlib_xcb_surface_t *) surface;
/* Throw an error for a non-xlib surface */
if (surface->type != CAIRO_SURFACE_TYPE_XLIB) {
_cairo_error_throw (CAIRO_STATUS_SURFACE_TYPE_MISMATCH);
return NULL;
}
return xlib_surface->format;
}
#endif
void
cairo_xlib_surface_set_size (cairo_surface_t *abstract_surface,
int width,
int height)
{
cairo_xlib_xcb_surface_t *surface = (cairo_xlib_xcb_surface_t *) abstract_surface;
cairo_status_t status;
if (unlikely (abstract_surface->status))
return;
if (unlikely (abstract_surface->finished)) {
status = _cairo_surface_set_error (abstract_surface,
_cairo_error (CAIRO_STATUS_SURFACE_FINISHED));
return;
}
if (surface->base.type != CAIRO_SURFACE_TYPE_XLIB) {
status = _cairo_surface_set_error (abstract_surface,
CAIRO_STATUS_SURFACE_TYPE_MISMATCH);
return;
}
cairo_xcb_surface_set_size (&surface->xcb->base, width, height);
if (unlikely (surface->xcb->base.status)) {
status = _cairo_surface_set_error (abstract_surface,
_cairo_error (surface->xcb->base.status));
}
}
void
cairo_xlib_surface_set_drawable (cairo_surface_t *abstract_surface,
Drawable drawable,
int width,
int height)
{
cairo_xlib_xcb_surface_t *surface = (cairo_xlib_xcb_surface_t *)abstract_surface;
cairo_status_t status;
if (unlikely (abstract_surface->status))
return;
if (unlikely (abstract_surface->finished)) {
status = _cairo_surface_set_error (abstract_surface,
_cairo_error (CAIRO_STATUS_SURFACE_FINISHED));
return;
}
if (surface->base.type != CAIRO_SURFACE_TYPE_XLIB) {
status = _cairo_surface_set_error (abstract_surface,
CAIRO_STATUS_SURFACE_TYPE_MISMATCH);
return;
}
cairo_xcb_surface_set_drawable (&surface->xcb->base, drawable, width, height);
if (unlikely (surface->xcb->base.status)) {
status = _cairo_surface_set_error (abstract_surface,
_cairo_error (surface->xcb->base.status));
}
}
Display *
cairo_xlib_surface_get_display (cairo_surface_t *abstract_surface)
{
cairo_xlib_xcb_surface_t *surface = (cairo_xlib_xcb_surface_t *) abstract_surface;
if (surface->base.type != CAIRO_SURFACE_TYPE_XLIB) {
_cairo_error_throw (CAIRO_STATUS_SURFACE_TYPE_MISMATCH);
return NULL;
}
return surface->display;
}
Drawable
cairo_xlib_surface_get_drawable (cairo_surface_t *abstract_surface)
{
cairo_xlib_xcb_surface_t *surface = (cairo_xlib_xcb_surface_t *) abstract_surface;
if (unlikely (abstract_surface->finished)) {
_cairo_error_throw (CAIRO_STATUS_SURFACE_FINISHED);
return 0;
}
if (surface->base.type != CAIRO_SURFACE_TYPE_XLIB) {
_cairo_error_throw (CAIRO_STATUS_SURFACE_TYPE_MISMATCH);
return 0;
}
/* This can happen when e.g. create_similar falls back to an image surface
* because we don't have the RENDER extension. */
if (surface->xcb->base.type != CAIRO_SURFACE_TYPE_XCB) {
_cairo_error_throw (CAIRO_STATUS_SURFACE_TYPE_MISMATCH);
return 0;
}
return surface->xcb->drawable;
}
Screen *
cairo_xlib_surface_get_screen (cairo_surface_t *abstract_surface)
{
cairo_xlib_xcb_surface_t *surface = (cairo_xlib_xcb_surface_t *) abstract_surface;
if (surface->base.type != CAIRO_SURFACE_TYPE_XLIB) {
_cairo_error_throw (CAIRO_STATUS_SURFACE_TYPE_MISMATCH);
return NULL;
}
return surface->screen;
}
Visual *
cairo_xlib_surface_get_visual (cairo_surface_t *abstract_surface)
{
cairo_xlib_xcb_surface_t *surface = (cairo_xlib_xcb_surface_t *) abstract_surface;
if (surface->base.type != CAIRO_SURFACE_TYPE_XLIB) {
_cairo_error_throw (CAIRO_STATUS_SURFACE_TYPE_MISMATCH);
return NULL;
}
return surface->visual;
}
int
cairo_xlib_surface_get_depth (cairo_surface_t *abstract_surface)
{
cairo_xlib_xcb_surface_t *surface = (cairo_xlib_xcb_surface_t *) abstract_surface;
if (unlikely (abstract_surface->finished)) {
_cairo_error_throw (CAIRO_STATUS_SURFACE_FINISHED);
return 0;
}
if (surface->base.type != CAIRO_SURFACE_TYPE_XLIB) {
_cairo_error_throw (CAIRO_STATUS_SURFACE_TYPE_MISMATCH);
return 0;
}
/* This can happen when e.g. create_similar falls back to an image surface
* because we don't have the RENDER extension. */
if (surface->xcb->base.type != CAIRO_SURFACE_TYPE_XCB) {
_cairo_error_throw (CAIRO_STATUS_SURFACE_TYPE_MISMATCH);
return 0;
}
return surface->xcb->depth;
}
int
cairo_xlib_surface_get_width (cairo_surface_t *abstract_surface)
{
cairo_xlib_xcb_surface_t *surface = (cairo_xlib_xcb_surface_t *) abstract_surface;
if (unlikely (abstract_surface->finished)) {
_cairo_error_throw (CAIRO_STATUS_SURFACE_FINISHED);
return 0;
}
if (surface->base.type != CAIRO_SURFACE_TYPE_XLIB) {
_cairo_error_throw (CAIRO_STATUS_SURFACE_TYPE_MISMATCH);
return 0;
}
/* This can happen when e.g. create_similar falls back to an image surface
* because we don't have the RENDER extension. */
if (surface->xcb->base.type != CAIRO_SURFACE_TYPE_XCB) {
_cairo_error_throw (CAIRO_STATUS_SURFACE_TYPE_MISMATCH);
return 0;
}
return surface->xcb->width;
}
int
cairo_xlib_surface_get_height (cairo_surface_t *abstract_surface)
{
cairo_xlib_xcb_surface_t *surface = (cairo_xlib_xcb_surface_t *) abstract_surface;
if (unlikely (abstract_surface->finished)) {
_cairo_error_throw (CAIRO_STATUS_SURFACE_FINISHED);
return 0;
}
if (surface->base.type != CAIRO_SURFACE_TYPE_XLIB) {
_cairo_error_throw (CAIRO_STATUS_SURFACE_TYPE_MISMATCH);
return 0;
}
/* This can happen when e.g. create_similar falls back to an image surface
* because we don't have the RENDER extension. */
if (surface->xcb->base.type != CAIRO_SURFACE_TYPE_XCB) {
_cairo_error_throw (CAIRO_STATUS_SURFACE_TYPE_MISMATCH);
return 0;
}
return surface->xcb->height;
}
void
cairo_xlib_device_debug_cap_xrender_version (cairo_device_t *device,
int major, int minor)
{
cairo_xlib_xcb_display_t *display = (cairo_xlib_xcb_display_t *) device;
if (device == NULL || device->status)
return;
if (device->backend->type != CAIRO_DEVICE_TYPE_XLIB)
return;
cairo_xcb_device_debug_cap_xrender_version (display->xcb_device,
major, minor);
}
void
cairo_xlib_device_debug_set_precision (cairo_device_t *device,
int precision)
{
cairo_xlib_xcb_display_t *display = (cairo_xlib_xcb_display_t *) device;
if (device == NULL || device->status)
return;
if (device->backend->type != CAIRO_DEVICE_TYPE_XLIB) {
cairo_status_t status;
status = _cairo_device_set_error (device, CAIRO_STATUS_DEVICE_TYPE_MISMATCH);
(void) status;
return;
}
cairo_xcb_device_debug_set_precision (display->xcb_device, precision);
}
int
cairo_xlib_device_debug_get_precision (cairo_device_t *device)
{
cairo_xlib_xcb_display_t *display = (cairo_xlib_xcb_display_t *) device;
if (device == NULL || device->status)
return -1;
if (device->backend->type != CAIRO_DEVICE_TYPE_XLIB) {
cairo_status_t status;
status = _cairo_device_set_error (device, CAIRO_STATUS_DEVICE_TYPE_MISMATCH);
(void) status;
return -1;
}
return cairo_xcb_device_debug_get_precision (display->xcb_device);
}
#endif /* CAIRO_HAS_XLIB_XCB_FUNCTIONS */