diff options
Diffstat (limited to 'src/gallium/drivers/llvmpipe/README')
| -rw-r--r-- | src/gallium/drivers/llvmpipe/README | 25 |
1 files changed, 15 insertions, 10 deletions
diff --git a/src/gallium/drivers/llvmpipe/README b/src/gallium/drivers/llvmpipe/README index 72d9f39658f..3c3fd386b52 100644 --- a/src/gallium/drivers/llvmpipe/README +++ b/src/gallium/drivers/llvmpipe/README @@ -12,7 +12,11 @@ Done so far is: - depth testing - - texture sampling (not all state/formats are supported) + - texture sampling + - 1D/2D/3D/cube maps supported + - all texture wrap modes supported + - all texture filtering modes supported + - perhaps not all texture formats yet supported - fragment shader TGSI translation - same level of support as the TGSI SSE2 exec machine, with the exception @@ -37,8 +41,6 @@ To do (probably by this order): - code generate stipple and stencil testing - - translate the remaining bits of texture sampling state - - translate TGSI control flow instructions, and all other remaining opcodes - integrate with the draw module for VS code generation @@ -49,8 +51,6 @@ To do (probably by this order): Requirements ============ - - Linux - - A x86 or amd64 processor. 64bit mode is preferred. Support for sse2 is strongly encouraged. Support for ssse3, and sse4.1 will @@ -59,7 +59,7 @@ Requirements See /proc/cpuinfo to know what your CPU supports. - - LLVM 2.6. + - LLVM 2.6 (or later) For Linux, on a recent Debian based distribution do: @@ -69,6 +69,9 @@ Requirements http://people.freedesktop.org/~jrfonseca/llvm/ and set the LLVM environment variable to the extracted path. + The version of LLVM from SVN ("2.7svn") from mid-March 2010 seems pretty + stable and has some features not in version 2.6. + - scons (optional) - udis86, http://udis86.sourceforge.net/ (optional): @@ -86,7 +89,7 @@ Building To build everything on Linux invoke scons as: - scons debug=yes statetrackers=mesa drivers=trace,llvmpipe winsys=xlib dri=false + scons debug=yes statetrackers=mesa drivers=llvmpipe winsys=xlib dri=false Alternatively, you can build it with GNU make, if you prefer, by invoking it as @@ -96,7 +99,7 @@ but the rest of these instructions assume that scons is used. For windows is everything the except except the winsys: - scons debug=yes statetrackers=mesa drivers=trace,llvmpipe winsys=gdi dri=false + scons debug=yes statetrackers=mesa drivers=llvmpipe winsys=gdi dri=false Using ===== @@ -142,11 +145,13 @@ Development Notes then skim through the lp_bld_* functions called in there, and the comments at the top of the lp_bld_*.c functions. -- All lp_bld_*.[ch] are isolated from the rest of the driver, and could/may be - put in a stand-alone Gallium state -> LLVM IR translation module. +- The driver-independent parts of the LLVM / Gallium code are found in + src/gallium/auxiliary/gallivm/. The filenames and function prefixes + need to be renamed from "lp_bld_" to something else though. - We use LLVM-C bindings for now. They are not documented, but follow the C++ interfaces very closely, and appear to be complete enough for code generation. See http://npcontemplation.blogspot.com/2008/06/secret-of-llvm-c-bindings.html for a stand-alone example. + See the llvm-c/Core.h file for reference. |