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.
45 lines
1.4 KiB
C
45 lines
1.4 KiB
C
/**
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* =========================================================================
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* File : tex_internal.h
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* Project : 0 A.D.
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* Description : private texture loader helper functions
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* =========================================================================
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*/
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// license: GPL; see lib/license.txt
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#ifndef INCLUDED_TEX_INTERNAL
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#define INCLUDED_TEX_INTERNAL
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#include "lib/allocators/dynarray.h"
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#include "lib/file/io/io.h" // io_Allocate
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/**
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* check if the given texture format is acceptable: 8bpp grey,
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* 24bpp color or 32bpp color+alpha (BGR / upside down are permitted).
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* basically, this is the "plain" format understood by all codecs and
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* tex_codec_plain_transform.
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* @param bpp bits per pixel
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* @param flags TexFlags
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* @return LibError
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**/
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extern LibError tex_validate_plain_format(size_t bpp, int flags);
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/**
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* indicate if the two vertical orientations match.
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*
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* used by tex_codec.
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*
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* @param src_flags TexFlags, used to extract the orientation.
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* we ask for this instead of src_orientation so callers don't have to
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* mask off TEX_ORIENTATION.
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* @param dst_orientation orientation to compare against.
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* can be one of TEX_BOTTOM_UP, TEX_TOP_DOWN, or 0 for the
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* "global orientation".
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* @return bool
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**/
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extern bool tex_orientations_match(size_t src_flags, size_t dst_orientation);
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#endif // #ifndef INCLUDED_TEX_INTERNAL
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