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Diffstat (limited to 'hw/xfree86/xf4bpp/wm3.h')
-rw-r--r--hw/xfree86/xf4bpp/wm3.h77
1 files changed, 77 insertions, 0 deletions
diff --git a/hw/xfree86/xf4bpp/wm3.h b/hw/xfree86/xf4bpp/wm3.h
new file mode 100644
index 000000000..5fd303d7d
--- /dev/null
+++ b/hw/xfree86/xf4bpp/wm3.h
@@ -0,0 +1,77 @@
+/* $XFree86: xc/programs/Xserver/hw/xfree86/xf4bpp/wm3.h,v 1.3 2000/09/26 15:57:21 tsi Exp $ */
+
+
+
+
+
+/* $XConsortium: wm3.h /main/4 1996/02/21 17:59:24 kaleb $ */
+
+#include "vgaReg.h"
+
+#ifdef PC98_EGC
+#define VGA_ALLPLANES 0xFL
+#endif
+
+/* Do call in Write Mode 3.
+ * We take care of the possibility that two passes are needed.
+ */
+#ifndef PC98_EGC
+#define DO_WM3(pgc,call) \
+ { int _tp, _fg, _bg, _alu; \
+ _fg = pgc->fgPixel; _bg = pgc->bgPixel; \
+ _tp = wm3_set_regs(pgc); \
+ (call); \
+ if ( _tp ) { \
+ _alu = pgc->alu; \
+ pgc->alu = GXinvert; \
+ _tp = wm3_set_regs(pgc); \
+ (call); \
+ pgc->alu = _alu; \
+ } \
+ pgc->fgPixel = _fg; pgc->bgPixel = _bg; \
+ }
+#else
+#define DO_WM3(pgc,call) \
+ { int _tp, _fg, _bg; \
+ _fg = pgc->fgPixel; _bg = pgc->bgPixel; \
+ _tp = wm3_set_regs(pgc); \
+ (call); \
+ pgc->fgPixel = _fg; pgc->bgPixel = _bg; \
+ }
+#endif
+
+#ifndef PC98_EGC
+#define WM3_SET_INK(ink) \
+ SetVideoGraphics(Set_ResetIndex, ink)
+#else
+#define WM3_SET_INK(ink) \
+ outw(EGC_FGC, ink)
+#endif
+
+/* GJA -- Move a long word to screen memory.
+ * The reads into 'dummy' are here to load the VGA latches.
+ * This is a RMW operation except for trivial cases.
+ * Notice that we ignore the operation.
+ */
+#ifdef PC98_EGC
+#define UPDRW(destp,src) \
+ { volatile unsigned short *_dtmp = \
+ (volatile unsigned short *)(destp); \
+ unsigned int _stmp = (src); \
+ *_dtmp = _stmp; _dtmp++; _stmp >>= 16; \
+ *_dtmp = _stmp; }
+#else
+#define UPDRW(destp,src) \
+ { volatile char *_dtmp = (volatile char *)(destp); \
+ unsigned int _stmp = (src); \
+ volatile int dummy; /* Bit bucket. */ \
+ _stmp = ldl_u(&_stmp); \
+ dummy = *_dtmp; *_dtmp = _stmp; _dtmp++; _stmp >>= 8; \
+ dummy = *_dtmp; *_dtmp = _stmp; _dtmp++; _stmp >>= 8; \
+ dummy = *_dtmp; *_dtmp = _stmp; _dtmp++; _stmp >>= 8; \
+ dummy = *_dtmp; *_dtmp = _stmp; }
+#endif
+
+#define UPDRWB(destp,src) \
+ { volatile int dummy; /* Bit bucket. */ \
+ dummy = *(destp); *(destp) = (src); }