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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 // This file defines utility functions for X11 (Linux only). This code has been | 5 // This file defines utility functions for X11 (Linux only). This code has been |
6 // ported from XCB since we can't use XCB on Ubuntu while its 32-bit support | 6 // ported from XCB since we can't use XCB on Ubuntu while its 32-bit support |
7 // remains woefully incomplete. | 7 // remains woefully incomplete. |
8 | 8 |
9 #include "ui/base/x/x11_util.h" | 9 #include "ui/base/x/x11_util.h" |
10 | 10 |
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46 #include "ui/gfx/geometry/insets.h" | 46 #include "ui/gfx/geometry/insets.h" |
47 #include "ui/gfx/geometry/point.h" | 47 #include "ui/gfx/geometry/point.h" |
48 #include "ui/gfx/geometry/point_conversions.h" | 48 #include "ui/gfx/geometry/point_conversions.h" |
49 #include "ui/gfx/geometry/rect.h" | 49 #include "ui/gfx/geometry/rect.h" |
50 #include "ui/gfx/geometry/size.h" | 50 #include "ui/gfx/geometry/size.h" |
51 #include "ui/gfx/image/image_skia.h" | 51 #include "ui/gfx/image/image_skia.h" |
52 #include "ui/gfx/image/image_skia_rep.h" | 52 #include "ui/gfx/image/image_skia_rep.h" |
53 #include "ui/gfx/skia_util.h" | 53 #include "ui/gfx/skia_util.h" |
54 #include "ui/gfx/x/x11_error_tracker.h" | 54 #include "ui/gfx/x/x11_error_tracker.h" |
55 | 55 |
| 56 #if !defined(OS_CHROMEOS) |
| 57 #include "base/command_line.h" |
| 58 #include "ui/gfx/x/x11_switches.h" |
| 59 #endif |
| 60 |
56 #if defined(OS_FREEBSD) | 61 #if defined(OS_FREEBSD) |
57 #include <sys/sysctl.h> | 62 #include <sys/sysctl.h> |
58 #include <sys/types.h> | 63 #include <sys/types.h> |
59 #endif | 64 #endif |
60 | 65 |
61 namespace ui { | 66 namespace ui { |
62 | 67 |
63 namespace { | 68 namespace { |
64 | 69 |
65 int DefaultX11ErrorHandler(XDisplay* d, XErrorEvent* e) { | 70 int DefaultX11ErrorHandler(XDisplay* d, XErrorEvent* e) { |
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1402 LOG(WARNING) | 1407 LOG(WARNING) |
1403 << "X error received: " | 1408 << "X error received: " |
1404 << "serial " << error_event.serial << ", " | 1409 << "serial " << error_event.serial << ", " |
1405 << "error_code " << static_cast<int>(error_event.error_code) | 1410 << "error_code " << static_cast<int>(error_event.error_code) |
1406 << " (" << error_str << "), " | 1411 << " (" << error_str << "), " |
1407 << "request_code " << static_cast<int>(error_event.request_code) << ", " | 1412 << "request_code " << static_cast<int>(error_event.request_code) << ", " |
1408 << "minor_code " << static_cast<int>(error_event.minor_code) | 1413 << "minor_code " << static_cast<int>(error_event.minor_code) |
1409 << " (" << request_str << ")"; | 1414 << " (" << request_str << ")"; |
1410 } | 1415 } |
1411 | 1416 |
| 1417 #if !defined(OS_CHROMEOS) |
| 1418 void ChooseVisualForWindow(Visual** visual, int* depth) { |
| 1419 static Visual* s_visual = NULL; |
| 1420 static int s_depth = 0; |
| 1421 |
| 1422 if (!s_visual) { |
| 1423 XDisplay* display = gfx::GetXDisplay(); |
| 1424 XAtom NET_WM_CM_S0 = XInternAtom(display, "_NET_WM_CM_S0", False); |
| 1425 |
| 1426 if (base::CommandLine::ForCurrentProcess()->HasSwitch( |
| 1427 switches::kEnableTransparentVisuals) && |
| 1428 XGetSelectionOwner(display, NET_WM_CM_S0) != None) { |
| 1429 // Choose the first ARGB8888 visual |
| 1430 XVisualInfo visual_template; |
| 1431 visual_template.screen = 0; |
| 1432 |
| 1433 int visuals_len; |
| 1434 gfx::XScopedPtr<XVisualInfo[]> visual_list(XGetVisualInfo( |
| 1435 display, VisualScreenMask, &visual_template, &visuals_len)); |
| 1436 for (int i = 0; i < visuals_len; ++i) { |
| 1437 // Why support only 8888 ARGB? Because it's all that GTK+ supports. In |
| 1438 // gdkvisual-x11.cc, they look for this specific visual and use it for |
| 1439 // all their alpha channel using needs. |
| 1440 // |
| 1441 // TODO(erg): While the following does find a valid visual, some GL |
| 1442 // drivers |
| 1443 // don't believe that this has an alpha channel. According to marcheu@, |
| 1444 // this should work on open source driver though. (It doesn't work with |
| 1445 // NVidia's binaries currently.) http://crbug.com/369209 |
| 1446 const XVisualInfo& info = visual_list[i]; |
| 1447 if (info.depth == 32 && info.visual->red_mask == 0xff0000 && |
| 1448 info.visual->green_mask == 0x00ff00 && |
| 1449 info.visual->blue_mask == 0x0000ff) { |
| 1450 s_visual = info.visual; |
| 1451 s_depth = info.depth; |
| 1452 break; |
| 1453 } |
| 1454 } |
| 1455 } else { |
| 1456 XWindowAttributes windowAttribs; |
| 1457 Window root = XDefaultRootWindow(display); |
| 1458 Status status = XGetWindowAttributes(display, root, &windowAttribs); |
| 1459 DCHECK(status != 0); |
| 1460 s_visual = windowAttribs.visual; |
| 1461 s_depth = windowAttribs.depth; |
| 1462 } |
| 1463 } // !s_visual |
| 1464 |
| 1465 DCHECK(s_visual); |
| 1466 DCHECK(s_depth > 0); |
| 1467 |
| 1468 if (visual) |
| 1469 *visual = s_visual; |
| 1470 if (depth) |
| 1471 *depth = s_depth; |
| 1472 } |
| 1473 #endif |
| 1474 |
1412 // ---------------------------------------------------------------------------- | 1475 // ---------------------------------------------------------------------------- |
1413 // End of x11_util_internal.h | 1476 // End of x11_util_internal.h |
1414 | 1477 |
1415 | 1478 |
1416 } // namespace ui | 1479 } // namespace ui |
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