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/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */
/*
* Copyright © 2004,2006 Red Hat, Inc.
*
* Permission to use, copy, modify, distribute, and sell this software
* and its documentation for any purpose is hereby granted without
* fee, provided that the above copyright notice appear in all copies
* and that both that copyright notice and this permission notice
* appear in supporting documentation, and that the name of
* Red Hat, Inc. not be used in advertising or publicity pertaining to
* distribution of the software without specific, written prior
* permission. Red Hat, Inc. makes no representations about the
* suitability of this software for any purpose. It is provided "as
* is" without express or implied warranty.
* RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
* SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL,
* INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
* RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
* IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
* Author: Carl D. Worth <cworth@cworth.org>
*/
#include "cairo-boilerplate-private.h"
#include "cairo-malloc-private.h"
#include <cairo-xcb.h>
#include <assert.h>
/* Errors have response_type == 0 */
#define CAIRO_XCB_ERROR 0
static const cairo_user_data_key_t xcb_closure_key;
typedef struct _xcb_target_closure {
xcb_connection_t *c;
cairo_device_t *device;
uint32_t drawable;
cairo_bool_t is_pixmap;
cairo_surface_t *surface;
} xcb_target_closure_t;
static cairo_status_t
_cairo_boilerplate_xcb_handle_errors (xcb_target_closure_t *xtc)
{
xcb_generic_event_t *ev = NULL;
/* Ignore all MappingNotify events; those might happen without us causing them */
do {
free(ev);
ev = xcb_poll_for_event(xtc->c);
} while (ev != NULL && ev->response_type == XCB_MAPPING_NOTIFY);
if (ev != NULL) {
if (ev->response_type == CAIRO_XCB_ERROR) {
xcb_generic_error_t *error = (xcb_generic_error_t *) ev;
fprintf (stderr,
"Detected error during xcb run: error=%d, "
"seqno=0x%02x, major=%d, minor=%d\n",
error->error_code, error->sequence,
error->major_code, error->minor_code);
} else {
"Detected unexpected event during xcb run: type=%d, seqno=0x%02x\n",
ev->response_type, ev->sequence);
}
free (ev);
/* Silently discard all following errors */
while ((ev = xcb_poll_for_event (xtc->c)) != NULL)
return CAIRO_STATUS_WRITE_ERROR;
return CAIRO_STATUS_SUCCESS;
static void
_cairo_boilerplate_xcb_sync_server (xcb_target_closure_t *xtc)
free (xcb_get_input_focus_reply (xtc->c,
xcb_get_input_focus (xtc->c), NULL));
_cairo_boilerplate_xcb_setup_test_surface (cairo_surface_t *surface)
/* For testing purposes, tell the X server to strictly adhere to the
* Render specification.
cairo_xcb_device_debug_set_precision(cairo_surface_get_device(surface),
XCB_RENDER_POLY_MODE_PRECISE);
_cairo_boilerplate_xcb_cleanup (void *closure)
xcb_target_closure_t *xtc = closure;
cairo_status_t status;
cairo_surface_finish (xtc->surface);
if (xtc->is_pixmap)
xcb_free_pixmap (xtc->c, xtc->drawable);
else
xcb_destroy_window (xtc->c, xtc->drawable);
cairo_surface_destroy (xtc->surface);
cairo_device_finish (xtc->device);
cairo_device_destroy (xtc->device);
/* First synchronize with the X server to make sure there are no more errors
* in-flight which we would miss otherwise */
_cairo_boilerplate_xcb_sync_server (xtc);
status = _cairo_boilerplate_xcb_handle_errors (xtc);
assert (status == CAIRO_STATUS_SUCCESS);
xcb_disconnect (xtc->c);
free (xtc);
_cairo_boilerplate_xcb_synchronize (void *closure)
free (xcb_get_image_reply (xtc->c,
xcb_get_image (xtc->c, XCB_IMAGE_FORMAT_Z_PIXMAP,
xtc->drawable, 0, 0, 1, 1, /* AllPlanes */ -1),
0));
static xcb_render_pictforminfo_t *
find_depth (xcb_connection_t *connection,
int depth,
void **formats_out)
xcb_render_query_pict_formats_reply_t *formats;
xcb_render_query_pict_formats_cookie_t cookie;
xcb_render_pictforminfo_iterator_t i;
cookie = xcb_render_query_pict_formats (connection);
xcb_flush (connection);
formats = xcb_render_query_pict_formats_reply (connection, cookie, 0);
if (formats == NULL)
return NULL;
for (i = xcb_render_query_pict_formats_formats_iterator (formats);
i.rem;
xcb_render_pictforminfo_next (&i))
if (XCB_RENDER_PICT_TYPE_DIRECT != i.data->type)
continue;
if (depth != i.data->depth)
*formats_out = formats;
return i.data;
free (formats);
static const cairo_user_data_key_t key;
static const cairo_user_data_key_t key2;
struct similar {
xcb_connection_t *connection;
xcb_drawable_t pixmap;
};
static void _destroy_similar (void *closure)
struct similar *similar = closure;
xcb_free_pixmap (similar->connection, similar->pixmap);
free (similar);
struct xcb_info {
xcb_render_pictforminfo_t *render_format[3];
static cairo_surface_t *
_cairo_boilerplate_xcb_create_similar (cairo_surface_t *other,
cairo_content_t content,
int width, int height)
cairo_device_t *device = cairo_surface_get_device (other);
struct xcb_info *info = cairo_device_get_user_data (device, &key);
xcb_screen_t *root;
struct similar *similar;
xcb_render_pictforminfo_t *render_format;
int depth;
similar = _cairo_malloc (sizeof (*similar));
switch (content) {
default:
case CAIRO_CONTENT_COLOR_ALPHA:
depth = 32;
render_format = info->render_format[0];
break;
case CAIRO_CONTENT_COLOR:
depth = 24;
render_format = info->render_format[1];
case CAIRO_CONTENT_ALPHA:
depth = 8;
render_format = info->render_format[2];
similar->connection =
cairo_xcb_device_get_connection (cairo_surface_get_device(other));
similar->pixmap = xcb_generate_id (similar->connection);
root = xcb_setup_roots_iterator(xcb_get_setup(similar->connection)).data;
xcb_create_pixmap (similar->connection, depth,
similar->pixmap, root->root,
width, height);
surface = cairo_xcb_surface_create_with_xrender_format (similar->connection,
root,
similar->pixmap,
render_format,
cairo_surface_set_user_data (surface, &key, similar, _destroy_similar);
return surface;
_cairo_boilerplate_xcb_create_surface (const char *name,
double width,
double height,
double max_width,
double max_height,
cairo_boilerplate_mode_t mode,
void **closure)
xcb_target_closure_t *xtc;
xcb_render_query_pict_formats_cookie_t formats_cookie;
struct xcb_info *info;
xcb_void_cookie_t cookie;
*closure = xtc = xmalloc (sizeof (xcb_target_closure_t));
info = xcalloc (1, sizeof (struct xcb_info));
if (width == 0)
width = 1;
if (height == 0)
height = 1;
xtc->c = c = xcb_connect(NULL,NULL);
if (c == NULL || xcb_connection_has_error(c)) {
free (info);
root = xcb_setup_roots_iterator(xcb_get_setup(c)).data;
formats_cookie = xcb_render_query_pict_formats (c);
xtc->surface = NULL;
xtc->is_pixmap = TRUE;
xtc->drawable = xcb_generate_id (c);
case CAIRO_CONTENT_ALPHA: /* would be XCB_PICT_STANDARD_A_8 */
xcb_disconnect (c);
cookie = xcb_create_pixmap_checked (c, depth,
xtc->drawable, root->root,
/* slow, but sure */
if (xcb_request_check (c, cookie) != NULL) {
info->formats = xcb_render_query_pict_formats_reply (c, formats_cookie, 0);
if (info->formats == NULL) {
for (i = xcb_render_query_pict_formats_formats_iterator (info->formats);
if (i.data->depth == 32) {
if (info->render_format[0] == 0)
info->render_format[0] = i.data;
} else if (i.data->depth == 24) {
if (info->render_format[1] == 0)
info->render_format[1] = i.data;
} else if (i.data->depth == 8) {
if (info->render_format[2] == 0)
info->render_format[2] = i.data;
assert (info->render_format[0]);
assert (info->render_format[1]);
assert (info->render_format[2]);
surface = cairo_xcb_surface_create_with_xrender_format (c, root,
xtc->drawable,
cairo_device_set_user_data (cairo_surface_get_device (surface), &key, info, free);
cairo_device_set_user_data (cairo_surface_get_device (surface), &key2, info->formats, free);
if (mode != CAIRO_BOILERPLATE_MODE_PERF)
_cairo_boilerplate_xcb_setup_test_surface(surface);
xtc->device = cairo_device_reference (cairo_surface_get_device (surface));
status = cairo_surface_set_user_data (surface, &xcb_closure_key, xtc, NULL);
if (status == CAIRO_STATUS_SUCCESS)
cairo_surface_destroy (surface);
_cairo_boilerplate_xcb_cleanup (xtc);
return cairo_boilerplate_surface_create_in_error (status);
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 0;
_cairo_boilerplate_xcb_create_window (const char *name,
xcb_screen_t *s;
uint32_t values[] = { 1 };
if (xcb_connection_has_error(c)) {
s = xcb_setup_roots_iterator (xcb_get_setup (c)).data;
if (width > s->width_in_pixels || height > s->height_in_pixels) {
xtc->is_pixmap = FALSE;
cookie = xcb_create_window_checked (c,
s->root_depth,
s->root,
0, 0, width, height, 0,
XCB_WINDOW_CLASS_INPUT_OUTPUT,
s->root_visual,
XCB_CW_OVERRIDE_REDIRECT,
values);
xcb_map_window (c, xtc->drawable);
surface = cairo_xcb_surface_create (c,
lookup_visual (s, s->root_visual),
_cairo_boilerplate_xcb_create_window_db (const char *name,
xtc->surface = cairo_xcb_surface_create (c,
surface = cairo_surface_create_similar (xtc->surface, content, width, height);
_cairo_boilerplate_xcb_create_render_0_0 (const char *name,
void *formats;
xcb_flush (c);
render_format = find_depth (c, depth, &formats);
if (render_format == NULL) {
if (cairo_surface_status (surface)) {
cairo_xcb_device_debug_cap_xrender_version (xtc->device, 0, 0);
assert (cairo_surface_get_device (surface) == xtc->device);
_cairo_boilerplate_xcb_create_fallback (const char *name,
xtc->c = c = xcb_connect (NULL,NULL);
cairo_xcb_device_debug_cap_xrender_version (cairo_surface_get_device (surface),
-1, -1);
_cairo_boilerplate_xcb_finish_surface (cairo_surface_t *surface)
xcb_target_closure_t *xtc = cairo_surface_get_user_data (surface,
&xcb_closure_key);
if (xtc->surface != NULL) {
cairo_t *cr;
cr = cairo_create (xtc->surface);
cairo_set_source_surface (cr, surface, 0, 0);
cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE);
cairo_paint (cr);
cairo_destroy (cr);
surface = xtc->surface;
cairo_surface_flush (surface);
if (cairo_surface_status (surface))
return cairo_surface_status (surface);
if (status)
return status;
if (xcb_connection_has_error (xtc->c))
static const cairo_boilerplate_target_t targets[] = {
/* Acceleration architectures may make the results differ by a
* bit, so we set the error tolerance to 1. */
"xcb", "traps", NULL, NULL,
CAIRO_SURFACE_TYPE_XCB, CAIRO_CONTENT_COLOR_ALPHA, 1,
"cairo_xcb_surface_create_with_xrender_format",
_cairo_boilerplate_xcb_create_surface,
_cairo_boilerplate_xcb_create_similar,
NULL,
_cairo_boilerplate_xcb_finish_surface,
_cairo_boilerplate_get_image_surface,
cairo_surface_write_to_png,
_cairo_boilerplate_xcb_cleanup,
_cairo_boilerplate_xcb_synchronize,
TRUE, FALSE, FALSE
},
CAIRO_SURFACE_TYPE_XCB, CAIRO_CONTENT_COLOR, 1,
FALSE, FALSE, FALSE
"xcb-window", "traps", NULL, NULL,
_cairo_boilerplate_xcb_create_window,
"xcb-window&", "traps", NULL, NULL,
_cairo_boilerplate_xcb_create_window_db,
"xcb-render-0_0", "xlib-fallback", NULL, NULL,
_cairo_boilerplate_xcb_create_render_0_0,
cairo_surface_create_similar,
"xcb-fallback", "xlib-fallback", NULL, NULL,
_cairo_boilerplate_xcb_create_fallback,
CAIRO_BOILERPLATE (xcb, targets)