128 lines
4.2 KiB
C
128 lines
4.2 KiB
C
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#ifdef HAVE_XORG_CONFIG_H
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#include <xorg-config.h>
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#endif
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#include <X11/Xarch.h>
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#ifndef FIXEDBASE
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#define CHECKRETURN(b) if(width <= ((b) * 32)) return(base + (b))
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#else
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#define CHECKRETURN(b) if(width <= ((b) * 32)) return(base)
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#endif
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#if X_BYTE_ORDER == X_BIG_ENDIAN
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# define SHIFT_L(value, shift) ((value) >> (shift))
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# define SHIFT_R(value, shift) ((value) << (shift))
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#else
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# define SHIFT_L(value, shift) ((value) << (shift))
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# define SHIFT_R(value, shift) ((value) >> (shift))
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#endif
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#ifndef MSBFIRST
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# ifdef FIXEDBASE
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# define WRITE_IN_BITORDER(dest, offset, data) *(dest) = data;
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# else
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# define WRITE_IN_BITORDER(dest, offset, data) *(dest + offset) = data;
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# endif
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#else
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# ifdef FIXEDBASE
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# define WRITE_IN_BITORDER(dest, offset, data) *(dest) = SWAP_BITS_IN_BYTES(data);
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# else
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# define WRITE_IN_BITORDER(dest, offset, data) *(dest + offset) = SWAP_BITS_IN_BYTES(data)
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# endif
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#endif
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#ifdef FIXEDBASE
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# ifdef MSBFIRST
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# define WRITE_BITS(b) *base = SWAP_BITS_IN_BYTES(b)
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# define WRITE_BITS1(b) { \
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*base = byte_reversed_expand3[(b) & 0xFF] | \
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byte_reversed_expand3[((b) & 0xFF00) >> 8] << 24; }
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# define WRITE_BITS2(b) { \
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*base = byte_reversed_expand3[(b) & 0xFF] | \
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byte_reversed_expand3[((b) & 0xFF00) >> 8] << 24; \
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*base = byte_reversed_expand3[((b) & 0xFF00) >> 8] >> 8 | \
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byte_reversed_expand3[((b) & 0xFF0000) >> 16] << 16; }
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# define WRITE_BITS3(b) { \
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*base = byte_reversed_expand3[(b) & 0xFF] | \
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byte_reversed_expand3[((b) & 0xFF00) >> 8] << 24; \
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*base = byte_reversed_expand3[((b) & 0xFF00) >> 8] >> 8 | \
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byte_reversed_expand3[((b) & 0xFF0000) >> 16] << 16; \
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*base = byte_reversed_expand3[((b) & 0xFF0000) >> 16] >> 16 | \
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byte_reversed_expand3[((b) & 0xFF000000) >> 24] << 8; }
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# else
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# define WRITE_BITS(b) *base = (b)
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# define WRITE_BITS1(b) { \
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*base = byte_expand3[(b) & 0xFF] | \
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byte_expand3[((b) & 0xFF00) >> 8] << 24; }
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# define WRITE_BITS2(b) { \
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*base = byte_expand3[(b) & 0xFF] | \
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byte_expand3[((b) & 0xFF00) >> 8] << 24; \
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*base = byte_expand3[((b) & 0xFF00) >> 8] >> 8 | \
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byte_expand3[((b) & 0xFF0000) >> 16] << 16; }
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# define WRITE_BITS3(b) { \
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*base = byte_expand3[(b) & 0xFF] | \
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byte_expand3[((b) & 0xFF00) >> 8] << 24; \
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*base = byte_expand3[((b) & 0xFF00) >> 8] >> 8 | \
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byte_expand3[((b) & 0xFF0000) >> 16] << 16; \
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*base = byte_expand3[((b) & 0xFF0000) >> 16] >> 16 | \
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byte_expand3[((b) & 0xFF000000) >> 24] << 8; }
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# endif
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#else
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# ifdef MSBFIRST
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# define WRITE_BITS(b) *(base++) = SWAP_BITS_IN_BYTES(b)
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# define WRITE_BITS1(b) { \
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*(base++) = byte_reversed_expand3[(b) & 0xFF] | \
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byte_reversed_expand3[((b) & 0xFF00) >> 8] << 24; }
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# define WRITE_BITS2(b) { \
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*(base) = byte_reversed_expand3[(b) & 0xFF] | \
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byte_reversed_expand3[((b) & 0xFF00) >> 8] << 24; \
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*(base + 1) = byte_reversed_expand3[((b) & 0xFF00) >> 8] >> 8 | \
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byte_reversed_expand3[((b) & 0xFF0000) >> 16] << 16; \
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base += 2; }
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# define WRITE_BITS3(b) { \
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*(base) = byte_reversed_expand3[(b) & 0xFF] | \
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byte_reversed_expand3[((b) & 0xFF00) >> 8] << 24; \
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*(base + 1) = byte_reversed_expand3[((b) & 0xFF00) >> 8] >> 8 | \
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byte_reversed_expand3[((b) & 0xFF0000) >> 16] << 16; \
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*(base + 2) = byte_reversed_expand3[((b) & 0xFF0000) >> 16] >> 16 | \
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byte_reversed_expand3[((b) & 0xFF000000) >> 24] << 8; \
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base += 3; }
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# else
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# define WRITE_BITS(b) *(base++) = (b)
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# define WRITE_BITS1(b) { \
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*(base++) = byte_expand3[(b) & 0xFF] | \
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byte_expand3[((b) & 0xFF00) >> 8] << 24; }
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# define WRITE_BITS2(b) { \
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*(base) = byte_expand3[(b) & 0xFF] | \
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byte_expand3[((b) & 0xFF00) >> 8] << 24; \
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*(base + 1) = byte_expand3[((b) & 0xFF00) >> 8] >> 8 | \
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byte_expand3[((b) & 0xFF0000) >> 16] << 16; \
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base += 2; }
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# define WRITE_BITS3(b) { \
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*(base) = byte_expand3[(b) & 0xFF] | \
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byte_expand3[((b) & 0xFF00) >> 8] << 24; \
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*(base + 1) = byte_expand3[((b) & 0xFF00) >> 8] >> 8 | \
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byte_expand3[((b) & 0xFF0000) >> 16] << 16; \
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*(base + 2) = byte_expand3[((b) & 0xFF0000) >> 16] >> 16 | \
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byte_expand3[((b) & 0xFF000000) >> 24] << 8; \
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base += 3; }
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# endif
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#endif
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#ifdef FIXEDBASE
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# ifdef MSBFIRST
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# define EXPNAME(x) x##MSBFirstFixedBase
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# else
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# define EXPNAME(x) x##LSBFirstFixedBase
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# endif
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#else
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# ifdef MSBFIRST
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# define EXPNAME(x) x##MSBFirst
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# else
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# define EXPNAME(x) x##LSBFirst
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# endif
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#endif
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