janwas
c0ed950657
this snowballed into a massive search+destroy of the hodgepodge of mostly equivalent types we had in use (int, uint, unsigned, unsigned int, i32, u32, ulong, uintN). it is more efficient to use 64-bit types in 64-bit mode, so the preferred default is size_t (for anything remotely resembling a size or index). tile coordinates are ssize_t to allow more efficient conversion to/from floating point. flags are int because we almost never need more than 15 distinct bits, bit test/set is not slower and int is fastest to type. finally, some data that is pretty much directly passed to OpenGL is now typed accordingly. after several hours, the code now requires fewer casts and less guesswork. other changes: - unit and player IDs now have an "invalid id" constant in the respective class to avoid casting and -1 - fix some endian/64-bit bugs in the map (un)packing. added a convenience function to write/read a size_t. - ia32: change CPUID interface to allow passing in ecx (required for cache topology detection, which I need at work). remove some unneeded functions from asm, replace with intrinsics where possible. This was SVN commit r5942.
58 lines
2.3 KiB
C
58 lines
2.3 KiB
C
/**
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* =========================================================================
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* File : config2.h
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* Project : 0 A.D.
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* Description : compile-time configuration for isolated spots
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* =========================================================================
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*/
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// license: GPL; see lib/license.txt
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#ifndef INCLUDED_CONFIG2
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#define INCLUDED_CONFIG2
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// rationale: a centralized header makes it much easier to see what all
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// can be changed. it is assumed that only a few modules will need
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// configuration choices, so rebuilding them all is acceptable.
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// use config.h when settings must apply to the entire project.
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// allow use of RDTSC for raw tick counts (otherwise, the slower but
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// more reliable on MP systems wall-clock will be used).
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#ifndef CONFIG2_TIMER_ALLOW_RDTSC
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# define CONFIG2_TIMER_ALLOW_RDTSC 1
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#endif
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// this enables/disables the actual checking done by OverrunProtector
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// (quite slow, entailing mprotect() before/after each access).
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// define to 1 here or in the relevant module if you suspect mem corruption.
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// we provide this option because OverrunProtector requires some changes to
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// the object being wrapped, and we want to leave those intact but not
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// significantly slow things down except when needed.
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#ifndef CONFIG2_ALLOCATORS_OVERRUN_PROTECTION
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# define CONFIG2_ALLOCATORS_OVERRUN_PROTECTION 0
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#endif
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// zero-copy IO means all clients share the cached buffer; changing their
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// contents is forbidden. this flag causes the buffers to be marked as
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// read-only via MMU (writes would cause an exception), which takes a
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// bit of extra time.
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#ifndef CONFIG2_CACHE_READ_ONLY
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#define CONFIG2_CACHE_READ_ONLY 1
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#endif
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// enable the wsdl emulator in Windows builds.
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//
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// NOTE: the official SDL distribution has two problems on Windows:
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// - it specifies "/defaultlib:msvcrt.lib". this is troublesome because
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// multiple heaps are active; errors result when allocated blocks are
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// (for reasons unknown) passed to a different heap to be freed.
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// one workaround is to add "/nodefaultlib:msvcrt.lib" to the linker
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// command line in debug configurations.
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// - it doesn't support color hardware mouse cursors and clashes with
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// cursor.cpp's efforts by resetting the mouse cursor after movement.
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#ifndef CONFIG2_WSDL
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# define CONFIG2_WSDL 1
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#endif
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#endif // #ifndef INCLUDED_CONFIG2
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