View Issue Details
| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0023003 | Open CASCADE | OCCT:Visualization | public | 2012-02-28 11:58 | 2012-11-16 13:18 |
| Reporter | Assigned To | ||||
| Priority | normal | Severity | minor | ||
| Status | closed | Resolution | reopened | ||
| Platform | Windows | OS | VC++ 2008 | ||
| Product Version | 6.5.2 | ||||
| Target Version | 6.5.4 | Fixed in Version | 6.5.4 | ||
| Summary | 0023003: Photos of AIS Viewer are corrupted on Windows if tests are executed remotely | ||||
| Description | Description: Test executable: http://svn/svn/occt/trunk/tests/tap-tools/ Test cases: http://svn/svn/occt/trunk/tests/mesh Preparation of environment: ssh -l mnt quadrex export os_type=Windows export CASROOT=//slotex/nnt_06/KAS/dev/occt-652-opt-vc8 export OCCT3RDPARTY=//Aquarex/nnt_03/Common/OpenCASCADE6.5.2/3rdparty/win32 export TESTS_DATA=x:/tests_data execution string: .../tap-tools/run.sh .../tap-tools/env.sh .../tests .../results mesh 001 A2 | ||||
| Tags | No tags attached. | ||||
| Test case number | |||||
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2012-02-28 11:58 developer |
A2.gif (9,669 bytes) |
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Please provide information about used SSH server. |
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OpenSSH_5.8p1, OpenSSL 0.9.8r 8 Feb 2011 |
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sshd is launched as service that cause several limitations in Windows. Services started with non-interactive session and isolated from available interactive sessions. Interactive application (OCCT uses OpenGL thus it is interactive even in off-screen mode) launched by service get no any hardware acceleration for GDI and OpenGL and has dedicated (non-visible) desktop. DRAWEXE launched by ssh service got Microsoft software GL context like this: GLvendor = 'Microsoft Corporation' GLdevice = 'GDI Generic' GLversion = '1.1.0' GLSLversion = '' This results in folowing critical problems: - No hardware acceleration - No FBO support, required for correct off-screen rendering - Outdated GL version not main goal for testing company (visualization tests) V3d provide OpenGL dump capabilities without FBO for outdated GL implementations (for backward compatibility). However this support is limited to: - Requested image dimensions should corresponds to window - GL driver should provide at least double buffer support (otherwise image dump may be overlapped by other windows) - GL window should fit to the desktop (otherwise GL driver may clip rendering and result image) - Result not guarantied even when above conditions are satisfied According to attached snapshots GL driver clip the image because it doesn't fit to the desktop. This is because Windows create desktop for non-interactive sessions with some basic dimensions. vinit command currently uses predefined (left= 0; top= 460) position and width=height=409 (all in pixels). This window position fits in all modern monitors but not in ultra-low resolutions like 1024x768 and 800x600. 460+409-768=101 and this corresponds to observed clipped 101 bottom pixels on snapshots. As workaround vinit command can be called with explicit position 'vinit 0 0 409 409' (ugly 409 pixels hardcoded for backward-compatibility) or try to write small application that changes resolution of non-visible desktop. The best solution - to launch DRAWEXE within active interactive session. This is the ONLY solution that provides hardware accelerated GL context. The drawback of this solution - it requires that interactive session is really exists, means - some user is logged-in locally on server and will not log-off until tests will done. So the simplest way - to launch DRAWEXE interactively (means - launch it using display physically connected to workstation). Other ways - to launch interactive application from service - are much more complicated. See this link for full-fit description: http://blogs.msdn.com/b/winsdk/archive/2009/07/14/launching-an-interactive-process-from-windows-service-in-windows-vista-and-later.aspx And the last solution - to use another software implementation of OpenGL. Mesa3D project provides implementation of GL2.0+ standard including FBO required for correct off-screen rendering. The installation is simple - just prepend path to Mesa3D implementation of GLU32.DLL and OPENGL32.DLL libraries to PATH (tested within precompiled Mesa3D 6.41 available on web). |
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The image is created well if window is created with 0 0 coordinates: vinit 0 0 409 409 This workaround is implemented in draw.pl Mesa have not an influence on photo. |
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The draw.pl is not exists anymore. The fix should be implemented on DRAW. |
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Dear Andrey, The fix is integrated in CR23087_CR23210_master GIT repository. Please review it. Vladimir |
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Reviewed with no remarks; the fix is in CR23003 |
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The fix is simplified following remark by Kirill: now default top co-ordinate of the AIS window is set to 0 on all platforms. |
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occt: master 8c3c9904 2012-07-13 12:09:09
Committer: abv Details Diff |
0023003: Photos of AIS Viewer are corrupted on Windows if tests are executed remotely Default position of 3d viewer window created by vinit command is set to the right-left corner of the screen (0,0) to avoid problems on small screens, e.g. dummy remote desktops Default position of 3d viewer window created by vinit command is set to be close to the right-left corner of the screen (0,0) to avoid problems on small screens, e.g. dummy screens of remote desktops |
Affected Issues 0023003 |
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| mod - src/ViewerTest/ViewerTest_ViewerCommands.cxx | Diff File | ||
| Date Modified | Username | Field | Change |
|---|---|---|---|
| 2012-02-28 11:58 |
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New Issue | |
| 2012-02-28 11:58 |
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Assigned To | => kgv |
| 2012-02-28 11:58 |
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File Added: A2.gif | |
| 2012-02-28 12:00 |
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Description Updated | |
| 2012-02-28 12:09 | kgv | Note Added: 0019795 | |
| 2012-02-28 12:09 | kgv | Assigned To | kgv => vtn |
| 2012-02-28 12:09 | kgv | Status | new => feedback |
| 2012-02-28 12:20 |
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Note Added: 0019797 | |
| 2012-02-28 12:20 |
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Status | feedback => assigned |
| 2012-02-28 12:20 |
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Assigned To | vtn => kgv |
| 2012-02-28 12:20 |
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Reproducibility | have not tried => always |
| 2012-02-29 10:22 | kgv | Note Added: 0019809 | |
| 2012-02-29 10:24 | kgv | Note Edited: 0019809 | |
| 2012-02-29 10:27 | kgv | Note Edited: 0019809 | |
| 2012-02-29 10:30 | kgv | Note Edited: 0019809 | |
| 2012-02-29 10:31 | kgv | Assigned To | kgv => vtn |
| 2012-02-29 10:31 | kgv | Status | assigned => feedback |
| 2012-02-29 16:09 |
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Note Added: 0019819 | |
| 2012-02-29 16:09 |
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Status | feedback => assigned |
| 2012-02-29 16:09 |
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Status | assigned => resolved |
| 2012-02-29 19:21 | bugmaster | Status | resolved => reviewed |
| 2012-02-29 19:22 | bugmaster | Status | reviewed => verified |
| 2012-02-29 19:22 | bugmaster | Resolution | open => fixed |
| 2012-02-29 19:22 | bugmaster | Note Edited: 0019819 | |
| 2012-03-11 10:45 | bugmaster | Target Version | => 6.5.3 |
| 2012-03-11 10:55 |
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Summary | Photos of AIS Viewer are currupted on Windows if tests are executed remoutly. => Photos of AIS Viewer are corrupted on Windows if tests are executed remotely |
| 2012-03-21 12:33 |
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Relationship added | related to 0023001 |
| 2012-07-11 14:18 |
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Note Added: 0020902 | |
| 2012-07-11 14:18 |
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Status | closed => feedback |
| 2012-07-11 14:18 |
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Resolution | fixed => reopened |
| 2012-07-11 14:18 |
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Status | feedback => assigned |
| 2012-07-11 14:23 |
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Note Added: 0020904 | |
| 2012-07-11 14:23 |
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Assigned To | vtn => abv |
| 2012-07-11 14:23 |
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Status | assigned => resolved |
| 2012-07-11 15:42 |
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Note Added: 0020909 | |
| 2012-07-11 15:42 |
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Assigned To | abv => bugmaster |
| 2012-07-11 15:42 |
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Status | resolved => reviewed |
| 2012-07-11 16:05 |
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Note Added: 0020912 | |
| 2012-07-12 11:29 | apn | Assigned To | bugmaster => apn |
| 2012-07-17 17:50 |
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Changeset attached | => occt master 8c3c9904 |
| 2012-07-17 17:52 |
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Assigned To | apn => abv |
| 2012-07-17 17:52 |
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Status | reviewed => verified |
| 2012-10-01 14:30 | bugmaster | Target Version | 6.5.3 => 6.5.4 |
| 2012-11-16 13:14 | bugmaster | Fixed in Version | 6.5.3 => 6.5.4 |
| 2012-11-16 13:18 | bugmaster | Status | verified => closed |
