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Consider the following RT attachment order: 1. Attach surfaces attachments 0 & 1, and render with them 2. Detach 0 & 1 3. Re-attach 0 & 1 to different surfaces 4. Render with the new attachment The definition of a tile being resolved is that local changes have been flushed out to the surface, hence there is no need to reload the tile before it's written to. For an invalid tile, the tile has to be reloaded from the surface before rendering. Stage (2) was marking hot tiles for attachements 0 & 1 as RESOLVED, which means that the hot tiles can be written out to memory with no need to read them back in (they are "clean"). They need to be marked as resolved here, because a surface may be destroyed after a detach, and we don't want to have un-resolved tiles that may force a readback from a NULL (destroyed) surface. (Part of a destroy is detach all attachments first) Stage (3), during the no att -> att transition, we need to realize that the "new" surface tiles need to be fetched fresh from the new surface, instead of using the resolved tiles, that belong to a stale attachment. This is done by marking the hot tiles as invalid in stage (3), when we realize that a new attachment is being made, so that they are re-fetched during rendering in stage (4). Also note that hot tiles are indexed by attachment. - Fixes VTK dual depth-peeling tests. - No piglit changes Reviewed-by: Tim Rowley <timothy.o.rowley@intel.com> |
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File: docs/README.WIN32 Last updated: 21 June 2013 Quick Start ----- ----- Windows drivers are build with SCons. Makefiles or Visual Studio projects are no longer shipped or supported. Run 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. Recipe ------ Building on windows requires several open-source packages. These are steps that work as of this writing. - install python 2.7 - install scons (latest) - install mingw, flex, and bison - install pywin32 from here: http://www.lfd.uci.edu/~gohlke/pythonlibs get pywin32-218.4.win-amd64-py2.7.exe - install git - download mesa from git see https://www.mesa3d.org/repository.html - run scons 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.