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| H A D | ServerApp.cpp | diff 0cdb3238 Sat Dec 11 19:44:59 MST 2021 Augustin Cavalier <waddlesplash@gmail.com> app_server & Application Kit: Fix bitmap cursor handling. Using a memcpy here is supremely dangerous, because we are writing to an app_server buffer that we chose the length for, but using a size that came from the client. And, indeed, because the buffer can contain padding if the BBitmap was allocated with a non-standard BytesPerRow, we will overflow the buffer and corrupt memory, causing app_server to crash. So, instead, reorganize parameters a bit, and pass BytesPerRow along with the other data needed to instantiate the bitmap, and then use ImportBits. Fixes an app_server crash I triggered with the experimental libX11 compatibility layer. diff 60d30785 Thu Aug 27 07:50:59 MDT 2020 X512 <danger_mail@list.ru> app_server memory management fixes: use BReference Use BReference for more automated reference counting in app_server, fixing some use-after-free and other problems. Extracted from https://review.haiku-os.org/c/haiku/+/2695 Change-Id: I141bb248229405896b29feff3338447f7257b0b4 Reviewed-on: https://review.haiku-os.org/c/haiku/+/3175 Reviewed-by: Adrien Destugues <pulkomandy@gmail.com> diff 9fe35223 Wed Aug 26 18:10:59 MDT 2009 Axel Dörfler <axeld@pinc-software.de> * BWindowScreens had no sychronization mechanism whatsoever - since the workspace activation message was asynchronous, whether or not the BWindowScreen stopped drawing in time was pure luck (this also caused crashes with the VESA driver, as that one unmaps its frame buffer during mode switch). Introduced a new AS_DIRECT_SCREEN_LOCK protocol for this. * In the long term, we should let BWindowScreen use the same mechanism as BDirectWindows, though. * Removed superfluous locking in BDirectWindow::_InitData(). git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@32746 a95241bf-73f2-0310-859d-f6bbb57e9c96 diff 345d8c9f Tue Aug 12 18:59:18 MDT 2008 Axel Dörfler <axeld@pinc-software.de> * Cleanup. git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@26962 a95241bf-73f2-0310-859d-f6bbb57e9c96 diff 59e13a3f Sun Aug 03 07:40:41 MDT 2008 Stephan Aßmus <superstippi@gmx.de> Patch by Andrej Spielmann (GSoC): * Simplified the subpixel related methods for the AGG "pixel format" template interface, the ones for the solid cover simply pass through the existing methods, so only one subpixel blending function is left which does the actual work (this removes a lot of the previously added code) * Implemented a new rasterizer based on the original AGG rasterizer which implements subpixel anti-aliasing for any generic AGG vector pipelines. It is now optionally used in Painter and AGGTextRenderer (for vector fonts, ie rotated, sheared or big enough fonts) depending on the global subpixel setting. * Put all subpixel variables into the new GlobalSubpixelSettings.h|cpp * Simplified DesktopSettings related classes a bit and renamed previous FontSubpixelAntialiasing to just SubpixelAntialiasing. * The private libbe functions for subpixel related settings moved from Font.cpp to InterfaceDefs.cpp where other such functions live. They are not related to fonts only anymore. * Removed the subpixel related settings again from the Fonts preflet and added them to the Appearance preflet instead. All of the above implements subpixel anti-aliasing on a global scale, which to my knowledge no other OS is doing at the moment. Any vector rendering can optionally use subpixel anti-aliasing in Haiku now. The bitmap cached fonts are still affected by the Freetype complile time #define to enable the patented subpixel rasterization (three times wide glyphs). Vector fonts and shapes are not affected though at the moment. git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@26755 a95241bf-73f2-0310-859d-f6bbb57e9c96 diff 59e13a3f Sun Aug 03 07:40:41 MDT 2008 Stephan Aßmus <superstippi@gmx.de> Patch by Andrej Spielmann (GSoC): * Simplified the subpixel related methods for the AGG "pixel format" template interface, the ones for the solid cover simply pass through the existing methods, so only one subpixel blending function is left which does the actual work (this removes a lot of the previously added code) * Implemented a new rasterizer based on the original AGG rasterizer which implements subpixel anti-aliasing for any generic AGG vector pipelines. It is now optionally used in Painter and AGGTextRenderer (for vector fonts, ie rotated, sheared or big enough fonts) depending on the global subpixel setting. * Put all subpixel variables into the new GlobalSubpixelSettings.h|cpp * Simplified DesktopSettings related classes a bit and renamed previous FontSubpixelAntialiasing to just SubpixelAntialiasing. * The private libbe functions for subpixel related settings moved from Font.cpp to InterfaceDefs.cpp where other such functions live. They are not related to fonts only anymore. * Removed the subpixel related settings again from the Fonts preflet and added them to the Appearance preflet instead. All of the above implements subpixel anti-aliasing on a global scale, which to my knowledge no other OS is doing at the moment. Any vector rendering can optionally use subpixel anti-aliasing in Haiku now. The bitmap cached fonts are still affected by the Freetype complile time #define to enable the patented subpixel rasterization (three times wide glyphs). Vector fonts and shapes are not affected though at the moment. git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@26755 a95241bf-73f2-0310-859d-f6bbb57e9c96 diff 9dbce7a4 Fri Mar 28 12:59:08 MDT 2008 Axel Dörfler <axeld@pinc-software.de> * AS_CURRENT_WORKSPACE now holds a single window lock before retrieving the current workspace. * This should fix bug #1765 as far as the app_server is concerned. * Cleanup, removed extraneous white space. git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@24632 a95241bf-73f2-0310-859d-f6bbb57e9c96 diff 38a6ea1d Sat Mar 18 08:59:23 MST 2006 Axel Dörfler <axeld@pinc-software.de> * Removed the old AS_AREA_MESSAGE stuff - it's currently not used at all, and even though we might need something similar, we can't use it (since it was based on BGet++). * Removed BGet++, it's not used anymore. * Removed ServerMemIO class, was never used. git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16830 a95241bf-73f2-0310-859d-f6bbb57e9c96 diff db5734a4 Sun Feb 05 16:36:59 MST 2006 Michael Lotz <mmlr@mlotz.ch> More work on the BFont special functions. * Reworked functions like GetEscapements(), GetBoundingBoxesAsString() and GetGlyphShapes() completely * Made the ServerFont functions uniform in their prototypes and cleaned out unnecessary arguments * Added new UTF8 handling functions to moreUTF8.h that are now used by ServerFont * Put the common transformations of the FT_Face into an own GetTransformedFace() to lessen code duplication In other words, ServerFont is now cleaned and handles UTF8 pretty efficiently. Some ToDo's are still left though. git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@16241 a95241bf-73f2-0310-859d-f6bbb57e9c96 diff df190823 Thu Jan 12 04:59:24 MST 2006 Stephan Aßmus <superstippi@gmx.de> * cleaned up ServerApp header a bit * added support for nested cursor showing/hiding git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@15926 a95241bf-73f2-0310-859d-f6bbb57e9c96 |
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