Brian Paul
699c1894ee
The different implementations of IROUND() behaved differently and in the case of fistp, depended on the current x86 FPU rounding mode. This caused some tests like piglit roundmode-pixelstore and roundmode-getintegerv to fail on 32-bit x86 but pass on 64-bit x86. Now IROUND() always rounds to the nearest integer (away from zero). The new F_TO_I function converts a float to an int by whatever means is fastest. We'll use this where we're more concerned with performance and not too worried to how the conversion is done. Reviewed-by: José Fonseca <jfonseca@vmware.com>
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.