| 1 | /* $XFree86: xc/programs/Xserver/hw/xfree86/xf4bpp/wm3.h,v 1.2 1998/07/25 16:59:46 dawes Exp $ */
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| 2 |
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| 3 |
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| 4 |
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| 5 |
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| 6 |
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| 7 | /* $XConsortium: wm3.h /main/4 1996/02/21 17:59:24 kaleb $ */
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| 8 |
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| 9 | #ifdef HAVE_XORG_CONFIG_H
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| 10 | #include <xorg-config.h>
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| 11 | #endif
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| 12 |
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| 13 | #include "vgaReg.h"
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| 14 |
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| 15 | #ifdef PC98_EGC
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| 16 | #define VGA_ALLPLANES 0xFL
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| 17 | #endif
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| 18 |
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| 19 | /* Do call in Write Mode 3.
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| 20 | * We take care of the possibility that two passes are needed.
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| 21 | */
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| 22 | #ifndef PC98_EGC
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| 23 | #define DO_WM3(pgc,call) \
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| 24 | { int _tp, _fg, _bg, _alu; \
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| 25 | _fg = pgc->fgPixel; _bg = pgc->bgPixel; \
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| 26 | _tp = wm3_set_regs(pgc); \
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| 27 | (call); \
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| 28 | if ( _tp ) { \
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| 29 | _alu = pgc->alu; \
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| 30 | pgc->alu = GXinvert; \
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| 31 | _tp = wm3_set_regs(pgc); \
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| 32 | (call); \
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| 33 | pgc->alu = _alu; \
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| 34 | } \
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| 35 | pgc->fgPixel = _fg; pgc->bgPixel = _bg; \
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| 36 | }
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| 37 | #else
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| 38 | #define DO_WM3(pgc,call) \
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| 39 | { int _tp, _fg, _bg; \
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| 40 | _fg = pgc->fgPixel; _bg = pgc->bgPixel; \
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| 41 | _tp = wm3_set_regs(pgc); \
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| 42 | (call); \
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| 43 | pgc->fgPixel = _fg; pgc->bgPixel = _bg; \
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| 44 | }
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| 45 | #endif
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| 46 |
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| 47 | #ifndef PC98_EGC
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| 48 | #define WM3_SET_INK(ink) \
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| 49 | SetVideoGraphics(Set_ResetIndex, ink)
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| 50 | #else
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| 51 | #define WM3_SET_INK(ink) \
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| 52 | outw(EGC_FGC, ink)
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| 53 | #endif
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| 54 |
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| 55 | /* GJA -- Move a long word to screen memory.
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| 56 | * The reads into 'dummy' are here to load the VGA latches.
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| 57 | * This is a RMW operation except for trivial cases.
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| 58 | * Notice that we ignore the operation.
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| 59 | */
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| 60 | #ifdef PC98_EGC
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| 61 | #define UPDRW(destp,src) \
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| 62 | { volatile unsigned short *_dtmp = \
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| 63 | (volatile unsigned short *)(destp); \
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| 64 | unsigned int _stmp = (src); \
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| 65 | *_dtmp = _stmp; _dtmp++; _stmp >>= 16; \
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| 66 | *_dtmp = _stmp; }
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| 67 | #else
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| 68 | #define UPDRW(destp,src) \
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| 69 | { volatile char *_dtmp = (volatile char *)(destp); \
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| 70 | unsigned int _stmp = (src); \
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| 71 | volatile int dummy; /* Bit bucket. */ \
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| 72 | _stmp = ldl_u(&_stmp); \
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| 73 | dummy = *_dtmp; *_dtmp = _stmp; _dtmp++; _stmp >>= 8; \
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| 74 | dummy = *_dtmp; *_dtmp = _stmp; _dtmp++; _stmp >>= 8; \
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| 75 | dummy = *_dtmp; *_dtmp = _stmp; _dtmp++; _stmp >>= 8; \
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| 76 | dummy = *_dtmp; *_dtmp = _stmp; }
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| 77 | #endif
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| 78 |
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| 79 | #define UPDRWB(destp,src) \
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| 80 | { volatile int dummy; /* Bit bucket. */ \
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| 81 | dummy = *(destp); *(destp) = (src); }
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