Jason Ekstrand
de3be61801
This commit completely reworks aux tracking. This includes a number of
somewhat distinct changes:
1) Since we are no longer fast-clearing multiple slices, we only need
to track one fast clear color and one fast clear type.
2) We store two bits for fast clear instead of one to let us
distinguish between zero and non-zero fast clear colors. This is
needed so that we can do full resolves when transitioning to
PRESENT_SRC_KHR with gen9 CCS images where we allow zero clear
values in all sorts of places we wouldn't normally.
3) We now track compression state as a boolean separate from fast clear
type and this is tracked on a per-slice granularity.
The previous scheme had some issues when it came to individual slices of
a multi-LOD images. In particular, we only tracked "needs resolve"
per-LOD but you could do a vkCmdPipelineBarrier that would only resolve
a portion of the image and would set "needs resolve" to false anyway.
Also, any transition from an undefined layout would reset the clear
color for the entire LOD regardless of whether or not there was some
clear color on some other slice.
As far as full/partial resolves go, he assumptions of the previous
scheme held because the one case where we do need a full resolve when
CCS_E is enabled is for window-system images. Since we only ever
allowed X-tiled window-system images, CCS was entirely disabled on gen9+
and we never got CCS_E. With the advent of Y-tiled window-system
buffers, we now need to properly support doing a full resolve of images
marked CCS_E.
v2 (Jason Ekstrand):
- Fix an bug in the compressed flag offset calculation
- Treat 3D images as multi-slice for the purposes of resolve tracking
v3 (Jason Ekstrand):
- Set the compressed flag whenever we fast-clear
- Simplify the resolve predicate computation logic
Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>
Reviewed-by: Nanley Chery <nanley.g.chery@intel.com>
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.