llvmpipe: updated status in README file
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@ -12,7 +12,11 @@ Done so far is:
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- depth testing
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- texture sampling (not all state/formats are supported)
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- texture sampling
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- 1D/2D/3D/cube maps supported
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- all texture wrap modes supported
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- all texture filtering modes supported
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- perhaps not all texture formats yet supported
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- fragment shader TGSI translation
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- same level of support as the TGSI SSE2 exec machine, with the exception
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@ -37,8 +41,6 @@ To do (probably by this order):
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- code generate stipple and stencil testing
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- translate the remaining bits of texture sampling state
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- translate TGSI control flow instructions, and all other remaining opcodes
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- integrate with the draw module for VS code generation
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@ -57,7 +59,7 @@ Requirements
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See /proc/cpuinfo to know what your CPU supports.
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- LLVM 2.6.
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- LLVM 2.6 (or later)
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For Linux, on a recent Debian based distribution do:
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@ -67,6 +69,9 @@ Requirements
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http://people.freedesktop.org/~jrfonseca/llvm/ and set the LLVM environment
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variable to the extracted path.
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The version of LLVM from SVN ("2.7svn") from mid-March 2010 seems pretty
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stable and has some features not in version 2.6.
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- scons (optional)
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- udis86, http://udis86.sourceforge.net/ (optional):
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@ -140,11 +145,13 @@ Development Notes
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then skim through the lp_bld_* functions called in there, and the comments
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at the top of the lp_bld_*.c functions.
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- All lp_bld_*.[ch] are isolated from the rest of the driver, and could/may be
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put in a stand-alone Gallium state -> LLVM IR translation module.
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- The driver-independent parts of the LLVM / Gallium code are found in
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src/gallium/auxiliary/gallivm/. The filenames and function prefixes
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need to be renamed from "lp_bld_" to something else though.
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- We use LLVM-C bindings for now. They are not documented, but follow the C++
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interfaces very closely, and appear to be complete enough for code
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generation. See
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http://npcontemplation.blogspot.com/2008/06/secret-of-llvm-c-bindings.html
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for a stand-alone example.
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See the llvm-c/Core.h file for reference.
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