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Previous to this patch, we didn't do the limit check for MAX_TRANSFORM_FEEDBACK_INTERLEAVED_COMPONENTS until the end of the store_tfeedback_info() function, *after* storing all of the transform feedback info in the gl_transform_feedback_info::Outputs array. This meant that the limit check wouldn't prevent us from overflowing the array and corrupting memory. This patch moves the limit check to the top of tfeedback_decl::store() so that there is no risk of overflowing the array. It also adds assertions to verify that the checks for MAX_TRANSFORM_FEEDBACK_INTERLEAVED_COMPONENTS and MAX_TRANSFORM_FEEDBACK_SEPARATE_COMPONENTS are sufficient to avoid array overflow. Note: strictly speaking this patch isn't necessary, since the maximum possible number of varyings is MAX_VARYING (16), whereas the size of the Outputs array is MAX_PROGRAM_OUTPUTS (64), so it's impossible to have enough varyings to overflow the array. However it seems prudent to do the limit check before the array access in case these limits change in the future. Reviewed-by: Ian Romanick <ian.d.romanick@intel.com> |
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File: docs/README.WIN32 Last updated: 23 April 2011 Quick Start ----- ----- Windows drivers are build with SCons. Makefiles or Visual Studio projects are no longer shipped or supported. Run scons osmesa mesagdi to build classic mesa Windows GDI drivers; or scons libgl-gdi to build gallium based GDI driver. This will work both with MSVS or Mingw. Windows Drivers ------- ------- At this time, only the gallium GDI driver is known to work. Source code also exists in the tree for other drivers in src/mesa/drivers/windows, but the status of this code is unknown. General ------- After building, you can copy the above DLL files to a place in your PATH such as $SystemRoot/SYSTEM32. If you don't like putting things in a system directory, place them in the same directory as the executable(s). Be careful about accidentially overwriting files of the same name in the SYSTEM32 directory. The DLL files are built so that the external entry points use the stdcall calling convention. Static LIB files are not built. The LIB files that are built with are the linker import files associated with the DLL files. The si-glu sources are used to build the GLU libs. This was done mainly to get the better tessellator code. If you have a Windows-related build problem or question, please post to the mesa-dev or mesa-users list.