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diff --git a/src/smi_hwcurs.c b/src/smi_hwcurs.c
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+/* Header: //Mercury/Projects/archives/XFree86/4.0/smi_hwcurs.c-arc 1.12 27 Nov 2000 15:47:48 Frido $ */
+
+/*
+Copyright (C) 1994-1999 The XFree86 Project, Inc. All Rights Reserved.
+Copyright (C) 2000 Silicon Motion, Inc. All Rights Reserved.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+of the Software, and to permit persons to whom the Software is furnished to do
+so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FIT-
+NESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+XFREE86 PROJECT BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+Except as contained in this notice, the names of the XFree86 Project and
+Silicon Motion shall not be used in advertising or otherwise to promote the
+sale, use or other dealings in this Software without prior written
+authorization from the XFree86 Project and Silicon Motion.
+*/
+/* $XFree86: xc/programs/Xserver/hw/xfree86/drivers/siliconmotion/smi_hwcurs.c,v 1.2 2001/03/03 22:26:13 tsi Exp $ */
+
+#include "cursorstr.h"
+#include "smi.h"
+
+#define MAX_CURSOR 32
+
+static unsigned char *
+SMI_RealizeCursor(xf86CursorInfoPtr infoPtr, CursorPtr pCurs)
+{
+ SMIPtr pSmi = SMIPTR(infoPtr->pScrn);
+ CursorBitsPtr bits = pCurs->bits;
+ unsigned char * ram;
+ unsigned char * psource = bits->source;
+ unsigned char * pmask = bits->mask;
+ int x, y, srcwidth, i;
+
+ ENTER_PROC("SMI_RealizeCursor");
+
+ /* Allocate memory */
+ ram = (unsigned char *) xcalloc(1, 1024);
+ if (ram == NULL)
+ {
+ LEAVE_PROC("SMI_RealizeCursor");
+ return(NULL);
+ }
+
+ /* Calculate cursor information */
+ srcwidth = ((bits->width + 31) / 8) & ~3;
+ i = 0;
+
+ switch (pSmi->rotate)
+ {
+ default:
+ /* Copy cursor image */
+ for (y = 0; y < min(MAX_CURSOR, bits->height); y++)
+ {
+ for (x = 0; x < min(MAX_CURSOR / 8, srcwidth); x++)
+ {
+ unsigned char mask = byte_reversed[*pmask++];
+ unsigned char source = byte_reversed[*psource++] & mask;
+
+ ram[i++] = ~mask;
+ ram[i++] = source;
+ if (i & 4) i += 4;
+ }
+
+ pmask += srcwidth - x;
+ psource += srcwidth - x;
+
+ /* Fill remaining part of line with no shape */
+ for (; x < MAX_CURSOR / 8; x++)
+ {
+ ram[i++] = 0xFF;
+ ram[i++] = 0x00;
+ if (i & 4) i += 4;
+ }
+ }
+
+ /* Fill remaining part of memory with no shape */
+ for (; y < MAX_CURSOR; y++)
+ {
+ for (x = 0; x < MAX_CURSOR / 8; x++)
+ {
+ ram[i++] = 0xFF;
+ ram[i++] = 0x00;
+ if (i & 4) i += 4;
+ }
+ }
+ break;
+
+ case SMI_ROTATE_CW:
+ /* Initialize cursor memory */
+ for (i = 0; i < 1024;)
+ {
+ ram[i++] = 0xFF;
+ ram[i++] = 0x00;
+ if (i & 4) i += 4;
+ }
+
+ /* Rotate cursor image */
+ for (y = 0; y < min(MAX_CURSOR, bits->height); y++)
+ {
+ unsigned char bitmask = 0x01 << (y & 7);
+ int index = ((MAX_CURSOR - y - 1) / 8) * 2;
+ if (index & 4) index += 4;
+
+ for (x = 0; x < min(MAX_CURSOR / 8, srcwidth); x++)
+ {
+ unsigned char mask = *pmask++;
+ unsigned char source = *psource++ & mask;
+
+ i = index + (x * 8) * 16;
+ if (mask || (source & mask))
+ {
+ unsigned char bit;
+ for (bit = 0x01; bit; bit <<= 1)
+ {
+ if (mask & bit)
+ {
+ ram[i + 0] &= ~bitmask;
+ }
+
+ if (source & bit)
+ {
+ ram[i + 1] |= bitmask;
+ }
+
+ i += 16;
+ }
+ }
+ }
+
+ pmask += srcwidth - x;
+ psource += srcwidth - x;
+ }
+ break;
+
+ case SMI_ROTATE_CCW:
+ /* Initialize cursor memory */
+ for (i = 0; i < 1024;)
+ {
+ ram[i++] = 0xFF;
+ ram[i++] = 0x00;
+ if (i & 4) i += 4;
+ }
+
+ /* Rotate cursor image */
+ for (y = 0; y < min(MAX_CURSOR, bits->height); y++)
+ {
+ unsigned char bitmask = 0x80 >> (y & 7);
+ int index = (y >> 3) * 2;
+ if (index & 4) index += 4;
+
+ for (x = 0; x < min(MAX_CURSOR / 8, srcwidth); x++)
+ {
+ unsigned char mask = *pmask++;
+ unsigned char source = *psource++ & mask;
+
+ i = index + (MAX_CURSOR - x * 8 - 1) * 16;
+ if (mask || (source & mask))
+ {
+ unsigned char bit;
+ for (bit = 0x01; bit; bit <<= 1)
+ {
+ if (mask & bit)
+ {
+ ram[i + 0] &= ~bitmask;
+ }
+
+ if (source & bit)
+ {
+ ram[i + 1] |= bitmask;
+ }
+
+ i -= 16;
+ }
+ }
+ }
+
+ pmask += srcwidth - x;
+ psource += srcwidth - x;
+ }
+ break;
+ }
+
+ LEAVE_PROC("SMI_RealizeCursor");
+ return(ram);
+}
+
+static void
+SMI_LoadCursorImage(ScrnInfoPtr pScrn, unsigned char *src)
+{
+ SMIPtr pSmi = SMIPTR(pScrn);
+ CARD8 tmp;
+
+ ENTER_PROC("SMI_LoadCursorImage");
+
+ /* Load storage location. */
+ VGAOUT8_INDEX(pSmi, VGA_SEQ_INDEX, VGA_SEQ_DATA, 0x80,
+ pSmi->FBCursorOffset / 2048);
+ tmp = VGAIN8_INDEX(pSmi, VGA_SEQ_INDEX, VGA_SEQ_DATA, 0x81) & 0x80;
+ VGAOUT8_INDEX(pSmi, VGA_SEQ_INDEX, VGA_SEQ_DATA, 0x81,
+ tmp | ((pSmi->FBCursorOffset / 2048) >> 8));
+
+ /* Copy cursor image to framebuffer storage */
+ memcpy(pSmi->FBBase + pSmi->FBCursorOffset, src, 1024);
+
+ LEAVE_PROC("SMI_LoadCursorImage");
+}
+
+static void
+SMI_ShowCursor(ScrnInfoPtr pScrn)
+{
+ SMIPtr pSmi = SMIPTR(pScrn);
+ char tmp;
+
+ ENTER_PROC("SMI_ShowCursor");
+
+ /* Show cursor */
+ tmp = VGAIN8_INDEX(pSmi, VGA_SEQ_INDEX, VGA_SEQ_DATA, 0x81);
+ VGAOUT8_INDEX(pSmi, VGA_SEQ_INDEX, VGA_SEQ_DATA, 0x81, tmp | 0x80);
+
+ LEAVE_PROC("SMI_ShowCursor");
+}
+
+static void
+SMI_HideCursor(ScrnInfoPtr pScrn)
+{
+ SMIPtr pSmi = SMIPTR(pScrn);
+ char tmp;
+
+ ENTER_PROC("SMI_HideCursor");
+
+ /* Hide cursor */
+ tmp = VGAIN8_INDEX(pSmi, VGA_SEQ_INDEX, VGA_SEQ_DATA, 0x81);
+ VGAOUT8_INDEX(pSmi, VGA_SEQ_INDEX, VGA_SEQ_DATA, 0x81, tmp & ~0x80);
+
+ LEAVE_PROC("SMI_HideCursor");
+}
+
+static void
+SMI_SetCursorPosition(ScrnInfoPtr pScrn, int x, int y)
+{
+ SMIPtr pSmi = SMIPTR(pScrn);
+ int xoff, yoff;
+
+ ENTER_PROC("SMI_SetCursorPosition");
+
+ /* Calculate coordinates for rotation */
+ switch (pSmi->rotate)
+ {
+ default:
+ xoff = x;
+ yoff = y;
+ break;
+
+ case SMI_ROTATE_CW:
+ xoff = pSmi->ShadowHeight - y - MAX_CURSOR;
+ yoff = x;
+ break;
+
+ case SMI_ROTATE_CCW:
+ xoff = y;
+ yoff = pSmi->ShadowWidth - x - MAX_CURSOR;
+ break;
+ }
+
+ /* Program coordinates */
+ if (xoff >= 0)
+ {
+ VGAOUT8_INDEX(pSmi, VGA_SEQ_INDEX, VGA_SEQ_DATA, 0x88, xoff & 0xFF);
+ VGAOUT8_INDEX(pSmi, VGA_SEQ_INDEX, VGA_SEQ_DATA, 0x89,
+ (xoff >> 8) & 0x07);
+ }
+ else
+ {
+ VGAOUT8_INDEX(pSmi, VGA_SEQ_INDEX, VGA_SEQ_DATA, 0x88,
+ (-xoff) & (MAX_CURSOR - 1));
+ VGAOUT8_INDEX(pSmi, VGA_SEQ_INDEX, VGA_SEQ_DATA, 0x89, 0x08);
+ }
+
+ if (yoff >= 0)
+ {
+ VGAOUT8_INDEX(pSmi, VGA_SEQ_INDEX, VGA_SEQ_DATA, 0x8A, yoff & 0xFF);
+ VGAOUT8_INDEX(pSmi, VGA_SEQ_INDEX, VGA_SEQ_DATA, 0x8B,
+ (yoff >> 8) & 0x07);
+ }
+ else
+ {
+ VGAOUT8_INDEX(pSmi, VGA_SEQ_INDEX, VGA_SEQ_DATA, 0x8A,
+ (-yoff) & (MAX_CURSOR - 1));
+ VGAOUT8_INDEX(pSmi, VGA_SEQ_INDEX, VGA_SEQ_DATA, 0x8B, 0x08);
+ }
+
+ LEAVE_PROC("SMI_SetCursorPosition");
+}
+
+static void
+SMI_SetCursorColors(ScrnInfoPtr pScrn, int bg, int fg)
+{
+ SMIPtr pSmi = SMIPTR(pScrn);
+ unsigned char packedFG, packedBG;
+
+ ENTER_PROC("SMI_SetCursorColors");
+
+ /* Pack the true color into 8 bit */
+ packedFG = (fg & 0xE00000) >> 16
+ | (fg & 0x00E000) >> 11
+ | (fg & 0x0000C0) >> 6
+ ;
+ packedBG = (bg & 0xE00000) >> 16
+ | (bg & 0x00E000) >> 11
+ | (bg & 0x0000C0) >> 6
+ ;
+
+ /* Program the colors */
+ VGAOUT8_INDEX(pSmi, VGA_SEQ_INDEX, VGA_SEQ_DATA, 0x8C, packedFG);
+ VGAOUT8_INDEX(pSmi, VGA_SEQ_INDEX, VGA_SEQ_DATA, 0x8D, packedBG);
+
+ LEAVE_PROC("SMI_SetCursorColors");
+}
+
+Bool
+SMI_HWCursorInit(ScreenPtr pScreen)
+{
+ ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
+ SMIPtr pSmi = SMIPTR(pScrn);
+ xf86CursorInfoPtr infoPtr;
+ Bool ret;
+
+ ENTER_PROC("SMI_HWCursorInit");
+
+ /* Create cursor infor record */
+ infoPtr = xf86CreateCursorInfoRec();
+ if (infoPtr == NULL)
+ {
+ LEAVE_PROC("SMI_HWCursorInit");
+ return(FALSE);
+ }
+
+ pSmi->CursorInfoRec = infoPtr;
+
+ /* Fill in the information */
+ infoPtr->MaxWidth = MAX_CURSOR;
+ infoPtr->MaxHeight = MAX_CURSOR;
+ infoPtr->Flags = HARDWARE_CURSOR_SOURCE_MASK_INTERLEAVE_8
+ | HARDWARE_CURSOR_SWAP_SOURCE_AND_MASK
+ | HARDWARE_CURSOR_AND_SOURCE_WITH_MASK
+ | HARDWARE_CURSOR_BIT_ORDER_MSBFIRST
+ | HARDWARE_CURSOR_TRUECOLOR_AT_8BPP
+ | HARDWARE_CURSOR_INVERT_MASK;
+
+ infoPtr->SetCursorColors = SMI_SetCursorColors;
+ infoPtr->SetCursorPosition = SMI_SetCursorPosition;
+ infoPtr->LoadCursorImage = SMI_LoadCursorImage;
+ infoPtr->HideCursor = SMI_HideCursor;
+ infoPtr->ShowCursor = SMI_ShowCursor;
+ infoPtr->RealizeCursor = SMI_RealizeCursor;
+ infoPtr->UseHWCursor = NULL;
+
+ /* Proceed with cursor initialization */
+ ret = xf86InitCursor(pScreen, infoPtr);
+
+ LEAVE_PROC("SMI_HWCursorInit");
+ return(ret);
+}
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