~ubuntu-branches/ubuntu/oneiric/gnome-desktop3/oneiric

Viewing changes to libgnome-desktop/gnome-rr.c

Committer: Bazaar Package Importer
Author(s): Rodrigo Moya
Date: 2011-07-06 12:00:02 UTC
mfrom: (1.2.11 upstream)
Revision ID: james.westby@ubuntu.com-20110706120002-72iyjlgzv90779dq

Tags: 3.1.3-0ubuntu1

* New upstream release.
* debian/rules:
  - Use --enable-static, as .a files are not built by default
* debian/watch:
  - Watch unstable series
* debian/libgnome-desktop-3.2-symbols:
  - Added new API symbols

Show diffs side-by-side

added added

removed removed

libgnome-desktop/gnome-rr.c

100

guint8 * edid_data;

101

gsize edid_size;

102

char * connector_type;

103

gint backlight_min;

104

gint backlight_max;

103

105

};

104

106

105

107

struct GnomeRROutputWrap

1399

1401

#endif

1400

1402

}

1401

1403

1404

static void

1405

update_brightness_limits (GnomeRROutput *output)

1406

{

1407

#ifdef HAVE_RANDR

1408

gint rc;

1409

Atom atom;

1410

XRRPropertyInfo *info;

1411

1412

gdk_error_trap_push ();

1413

atom = XInternAtom (DISPLAY (output), "BACKLIGHT", FALSE);

1414

info = XRRQueryOutputProperty (DISPLAY (output), output->id, atom);

1415

rc = gdk_error_trap_pop ();

1416

if (rc != 0)

1417

{

1418

g_warning ("could not get output property for %s, rc: %i",

1419

output->name, rc);

1420

goto out;

1421

}

1422

if (info == NULL)

1423

{

1424

g_warning ("could not get output property for %s",

1425

output->name);

1426

goto out;

1427

}

1428

if (!info->range || info->num_values != 2)

1429

{

1430

g_debug ("backlight %s was not range", output->name);

1431

goto out;

1432

}

1433

output->backlight_min = info->values[0];

1434

output->backlight_max = info->values[1];

1435

out:

1436

XFree (info);

1437

#endif

1438

}

1439

1402

1440

#ifdef HAVE_RANDR

1403

1441

static gboolean

1404

1442

output_initialize (GnomeRROutput *output, XRRScreenResources *res, GError **error)

1470

1508

1471

1509

/* Edid data */

1472

1510

output->edid_data = read_edid_data (output, &output->edid_size);

1473

1511

1512

/* brightness data */

1513

if (output->connected)

1514

update_brightness_limits (output);

1515

1474

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XRRFreeOutputInfo (info);

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1517

1476

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return TRUE;

1495

1537

output->connected = from->connected;

1496

1538

output->n_preferred = from->n_preferred;

1497

1539

output->connector_type = g_strdup (from->connector_type);

1540

output->backlight_min = -1;

1541

output->backlight_max = -1;

1498

1542

1499

1543

array = g_ptr_array_new ();

1500

1544

for (p_crtc = from->possible_crtcs; *p_crtc != NULL; p_crtc++)

1553

1597

}

1554

1598

1555

1599

/**

1600

* gnome_rr_output_get_backlight_min:

1601

1602

* Returns: The mimimum backlight value, or -1 if not supported

1603

1604

gint

1605

gnome_rr_output_get_backlight_min (GnomeRROutput *output)

1606

{

1607

g_return_val_if_fail (output != NULL, -1);

1608

return output->backlight_min;

1609

}

1610

1611

/**

1612

* gnome_rr_output_get_backlight_max:

1613

1614

* Returns: The maximum backlight value, or -1 if not supported

1615

1616

gint

1617

gnome_rr_output_get_backlight_max (GnomeRROutput *output)

1618

{

1619

g_return_val_if_fail (output != NULL, -1);

1620

return output->backlight_max;

1621

}

1622

1623

/**

1624

* gnome_rr_output_get_backlight:

1625

1626

* Returns: The currently set backlight brightness

1627

1628

gint

1629

gnome_rr_output_get_backlight (GnomeRROutput *output, GError **error)

1630

{

1631

guint now = -1;

1632

#ifdef HAVE_RANDR

1633

unsigned long nitems;

1634

unsigned long bytes_after;

1635

guint *prop;

1636

Atom atom;

1637

Atom actual_type;

1638

int actual_format;

1639

gint retval;

1640

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g_return_val_if_fail (output != NULL, -1);

1642

1643

gdk_error_trap_push ();

1644

atom = XInternAtom (DISPLAY (output), "BACKLIGHT", FALSE);

1645

retval = XRRGetOutputProperty (DISPLAY (output), output->id, atom,

1646

0, 4, False, False, None,

1647

&actual_type, &actual_format,

1648

&nitems, &bytes_after, ((unsigned char **)&prop));

1649

gdk_flush ();

1650

if (gdk_error_trap_pop ())

1651

{

1652

g_set_error_literal (error,

1653

GNOME_RR_ERROR,

1654

GNOME_RR_ERROR_UNKNOWN,

1655

"unhandled X error while getting the range of backlight values");

1656

goto out;

1657

}

1658

1659

if (retval != Success) {

1660

g_set_error_literal (error,

1661

GNOME_RR_ERROR,

1662

GNOME_RR_ERROR_RANDR_ERROR,

1663

"could not get the range of backlight values");

1664

goto out;

1665

}

1666

if (actual_type == XA_INTEGER &&

1667

nitems == 1 &&

1668

actual_format == 32)

1669

{

1670

memcpy (&now, prop, sizeof (guint));

1671

}

1672

else

1673

{

1674

g_set_error (error,

1675

GNOME_RR_ERROR,

1676

GNOME_RR_ERROR_RANDR_ERROR,

1677

"failed to get correct property type, got %lu,%i",

1678

nitems, actual_format);

1679

}

1680

out:

1681

XFree (prop);

1682

#else

1683

g_set_error_literal (error,

1684

GNOME_RR_ERROR,

1685

GNOME_RR_ERROR_NO_RANDR_EXTENSION,

1686

"not compiled with RANDR support");

1687

#endif /* HAVE_RANDR */

1688

return now;

1689

}

1690

1691

/**

1692

* gnome_rr_output_set_backlight:

1693

* @value: the absolute value which is min >= this <= max

1694

1695

* Returns: %TRUE for success

1696

1697

gboolean

1698

gnome_rr_output_set_backlight (GnomeRROutput *output, gint value, GError **error)

1699

{

1700

gboolean ret = FALSE;

1701

#ifdef HAVE_RANDR

1702

Atom atom;

1703

1704

g_return_val_if_fail (output != NULL, FALSE);

1705

1706

/* check this is sane */

1707

if (value < output->backlight_min ||

1708

value > output->backlight_max)

1709

{

1710

g_set_error (error,

1711

GNOME_RR_ERROR,

1712

GNOME_RR_ERROR_BOUNDS_ERROR,

1713

"out of brightness range: %i, has to be %i -> %i",

1714

value,

1715

output->backlight_max, output->backlight_min);

1716

goto out;

1717

}

1718

1719

/* don't abort on error */

1720

gdk_error_trap_push ();

1721

atom = XInternAtom (DISPLAY (output), "BACKLIGHT", FALSE);

1722

XRRChangeOutputProperty (DISPLAY (output), output->id, atom,

1723

XA_INTEGER, 32, PropModeReplace,

1724

(unsigned char *) &value, 1);

1725

if (gdk_error_trap_pop ())

1726

{

1727

g_set_error_literal (error,

1728

GNOME_RR_ERROR,

1729

GNOME_RR_ERROR_UNKNOWN,

1730

"unhandled X error while setting the backlight values");

1731

goto out;

1732

}

1733

1734

/* we assume this succeeded as there's no return value */

1735

ret = TRUE;

1736

#else

1737

g_set_error_literal (error,

1738

GNOME_RR_ERROR,

1739

GNOME_RR_ERROR_NO_RANDR_EXTENSION,

1740

"not compiled with RANDR support");

1741

#endif /* HAVE_RANDR */

1742

out:

1743

return ret;

1744

}

1745

1746

/**

1556

1747

* gnome_rr_screen_get_output_by_id:

1557

1748

1558

1749

* Returns: (transfer none): the output identified by @name

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