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* util: added util_dl_error()Brian Paul2010-04-052-0/+20
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* Merge branch '7.8'Ian Romanick2010-04-041-1/+1
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| * util: Use GCC atomic bultins on GCC 4.1 and higher only.Vinson Lee2010-04-031-1/+1
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* | util: Revert unsolicited, untested, unreviewed, and broken changes to format ↵José Fonseca2010-04-036-202/+109
| | | | | | | | | | | | | | support. Not all is bad, but I'm afraid I'll have to throw the baby with the water given they are all tied to together.
* | gallivm: Add fallthrough comment at end of case statement.Vinson Lee2010-04-021-0/+1
| | | | | | | | | | The code is correct. Tell Coverity that the fallthrough case is intentional.
* | gallium/util: print \n after DXTn printfLuca Barbieri2010-04-021-3/+3
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* | gallium/util: remove extraneous semicolonBrian Paul2010-04-011-1/+1
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* | gallium/util: revert util_format_init additionLuca Barbieri2010-04-022-10/+0
| | | | | | | | | | | | | | | | | | | | Putting calls to util_format_init all over the codebase is infeasible. Instead, half float tables are pregenerated, and the s3tc library is loaded on demand. I believe this is a solution that combines performance, cleanliness, flexibility and portability.
* | gallium/util: add util_format_is_supported to check for pack/unpackLuca Barbieri2010-04-023-6/+38
| | | | | | | | | | This improves the code by making it more readable, and removes special knowledge of S3TC and other formats from softpipe.
* | gallium/util: load s3tc on demandLuca Barbieri2010-04-022-107/+151
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This changes the S3TC function pointers to be initialized to stubs that load the S3TC library and then delegate to the real functions. If the S3TC library fails to load, the function pointers are replaced with a "nop" function. The code is also changed to attempt to load the library only one time.c Note that unlike checking for a flag, this method has no performance cost at all. The use of the "nop" functions also allows to avoid most checks, that are only preserved when the function does non-trivial work.
* | gallium/util: pregenerate half float tablesLuca Barbieri2010-04-026-170/+191
| | | | | | | | | | | | | | | | This solution avoids the issue of how to run the initializers and also allows those pages (and the parts of them in processor caches) to be shared between multiple processes. The drawback is slightly higher library size.
* | gallium/util: s/inline/INLINE/Vinson Lee2010-04-011-1/+1
| | | | | | | | Fixes MSVC build.
* | gallium/util: add util_format_init that inits s3tc and util_halfLuca Barbieri2010-04-024-5/+21
| | | | | | | | | | | | | | | | Switch from auto-init to explicit init for util_half per Brian Paul's indication. NOTE: this is probably broken because not enough things call util_format_init. Will be fixed shortly
* | gallium/util: add one-time initialization helperLuca Barbieri2010-04-021-0/+15
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* | gallium/util: use #pragma section instead of #pragma data_segLuca Barbieri2010-04-021-1/+1
| | | | | | | | | | | | | | | | | | | | | | They apparently both declare the section, but #pragma data_seg also puts all subsequent definitions in the section, which is undesirable. This should be the correct solution, and is actually used by the reference I cited (but I forgot to do it in my code). Untested, let me know if it doesn't work.
* | gallium/util: reindent u_half.c and u_half.h with Mesa coding styleLuca Barbieri2010-04-022-107/+112
| | | | | | | | Sorry, forgout about that.
* | Revert "util: Init half-float tables on demand."Luca Barbieri2010-04-023-14/+57
| | | | | | | | This reverts commit 950300eb255f0e3507bf2757d16c3b5bc8ff3471.
* | util: Init half-float tables on demand.Corbin Simpson2010-04-013-57/+14
| | | | | | | | Gets rid of unnecessary delays on startup and compiler-specific hax.
* | llvmpipe: Support sampling from PIPE_FORMAT_R32_FLOAT.José Fonseca2010-04-011-3/+43
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* | util: Declare .CRT$XCU data segment.Michal Krol2010-04-011-0/+1
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* | scons: Remove `util/u_gctors.cpp'.Michal Krol2010-04-011-1/+0
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* | gallium/util: rewrite global constructor system for half floats (GCC/MSVC only!)Luca Barbieri2010-04-015-26/+55
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | NOTE: this commit will cause Gallium to fail to build on any compiler except GCC, the Microsoft C compiler and compatible compilers that claim to be one of those. This commit removes the u_gctors.cpp mechanism, in favor of using compiler-specific syntax to add global constructors from C files. This solves the problem of u_gctors.o not being pulled from static libraries and avoids using C++. However, it needs compiler-specific support for every compiler. The Microsoft C compiler support has not been tested.
* | llvmpipe: Support sampling from signed and mixed siged formats.José Fonseca2010-04-011-9/+64
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* | gallium/util: add copyright header to u_half.cLuca Barbieri2010-04-011-2/+37
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* | util: Declare util_half_init_tables only once.José Fonseca2010-04-013-4/+15
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* | util: Use u_math.h's union fi instead of redefining it.José Fonseca2010-04-011-4/+5
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* | util: Add support for other DXTn RGBA formats.José Fonseca2010-04-012-22/+298
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* | util: Get DXT1_RGB format working correctly.José Fonseca2010-04-011-1/+54
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* | util: Add test case for PIPE_FORMAT_DXT1_RGB.José Fonseca2010-04-011-0/+32
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* | util: Allow to have block format test casesJosé Fonseca2010-04-012-449/+458
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* | util: Generate correct format conversions for half floats.Michal Krol2010-04-011-39/+59
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* | util: Use u_half to perform half <--> float conversions.Michal Krol2010-04-011-47/+6
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* | gallium: Integrate util_half with scons.Michal Krol2010-04-011-0/+2
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* | gallium/util: add fast half float conversion functionsLuca Barbieri2010-04-014-0/+199
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This adds a fast half float conversion facility to Gallium. Mesa already contains such a facility, but using a much worse algorithm. This one is an implementation of www.fox-toolkit.org/ftp/fasthalffloatconversion.pdf and uses a branch-less algorithm with some lookup tables small enough to fit in the L1 cache. Ideally, Mesa should start using these functions too, but I'm not sure how to arrange that with the current build system. A new "u_gctors.cpp" is added that defines a global C++ constructor allowing to initialize to conversion lookup tables at library init.
* | util: Add half float test cases.José Fonseca2010-04-011-0/+35
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* | util/format: fix big endian compilation by not trying to byteswap single bytesLuca Barbieri2010-04-011-7/+9
| | | | | | | | | | Conceivably, we could also have a dummy util_bswap8, but it seems better to not emit it in the first place.
* | gallivm: convert floats to doublesZack Rusin2010-03-311-2/+9
| | | | | | | | | | printf can't handle floats, convert them to doubles so that we can actually print floats.
* | util: Hook into libtxc_dxtn.so (WIP).José Fonseca2010-03-316-5/+738
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* | util: Make the accessors bidimensional again.José Fonseca2010-03-313-69/+65
| | | | | | | | Otherwise there's no way to unpack blocks with height >1
* | util: First stab at half-float conversion.Michal Krol2010-03-311-46/+55
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* | util: Describe PIPE_FORMAT_NONE as PIPE_FORMAT_R8_USCALED.José Fonseca2010-03-313-64/+19
| | | | | | | | | | | | | | | | Avoids the need to special case PIPE_FORMAT_NONE so often. Conflicts: src/gallium/auxiliary/util/u_format_table.py
* | util: Silence pointer to integer size mismatch errors.José Fonseca2010-03-311-1/+1
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* | util: Add callback to fetch a single pixel.José Fonseca2010-03-313-174/+214
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* | scons: Force to consider the util/u_format_pack.py for util/u_format_table.c.José Fonseca2010-03-311-0/+4
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* | os: Temporarily use posix thread for embedded too.Kurt Daverman2010-03-311-6/+6
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* | util: Remove the hand written u_tile.c functions for the ones that are code ↵José Fonseca2010-03-311-783/+0
| | | | | | | | | | | | | | generated correctly. Not that the code generated are any better, but to quickly detect any regression in the code generated ones from now on.
* | util: Use u_format_pack.py's code instead of u_format_access.py.José Fonseca2010-03-316-355/+163
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* | Merge branch 'gallium-new-formats'Roland Scheidegger2010-03-317-28/+61
|\ \ | | | | | | | | | | | | | | | | | | Conflicts: src/gallium/auxiliary/util/u_format.csv src/gallium/auxiliary/util/u_format_access.py src/gallium/auxiliary/util/u_format_pack.py
| * | gallium/util: use other layout instead of the old compressedRoland Scheidegger2010-03-301-2/+2
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| * | Merge branch 'master' into gallium-new-formatsRoland Scheidegger2010-03-307-19/+200
| |\ \ | | | | | | | | | | | | | | | | Conflicts: src/gallium/auxiliary/util/u_format.csv
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