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008fd03600
This was always doing per-pixel alignment which isn't necessary, except for the buffer case (due to the per-element offset). The disabled code for calculating it was incorrect because it assumed that always the full block would be fetched, which may not be the case, so fix this up. The original code failed for instance for r10g10b10a2 the alignment would have been calculated as 4 (block_width) * 4 (bytes) so 16, but the actual fetch may have only fetched 2 values at a time, hence only alignment 8 - it is unclear what exactly would happen in this case (alignment larger than size to fetch). So just use the (already calculated) fetch size instead and get alignment from that which should always work, no matter if fetching 1,2 or 4 pixels. Reviewed-by: Jose Fonseca <jfonseca@vmware.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.