1 files changed, 73 insertions, 0 deletions
diff --git a/xorg-server/hw/xfree86/xf4bpp/wm3.h b/xorg-server/hw/xfree86/xf4bpp/wm3.h
new file mode 100644
index 000000000..113723283
--- /dev/null
+++ b/xorg-server/hw/xfree86/xf4bpp/wm3.h
@@ -0,0 +1,73 @@
+#ifdef HAVE_XORG_CONFIG_H
+#include <xorg-config.h>
+#endif
+
+#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); }