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diff --git a/src/smi_dga.c b/src/smi_dga.c
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+/* Header: //Mercury/Projects/archives/XFree86/4.0/smi_dga.c-arc 1.5 27 Nov 2000 15:47:18 Frido $ */
+
+/*
+Copyright (C) 1994-2000 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_dga.c,v 1.2 2001/02/15 18:20:33 dawes Exp $ */
+
+#include "xf86.h"
+#include "xf86_OSproc.h"
+#include "xf86_ansic.h"
+#include "xf86Pci.h"
+#include "xf86PciInfo.h"
+#include "xaa.h"
+#include "xaalocal.h"
+
+#include "smi.h"
+#include "dgaproc.h"
+
+static Bool SMI_OpenFramebuffer(ScrnInfoPtr, char **, unsigned char **, int *,
+ int *, int *);
+static Bool SMI_SetMode(ScrnInfoPtr, DGAModePtr);
+static int SMI_GetViewport(ScrnInfoPtr);
+static void SMI_SetViewport(ScrnInfoPtr, int, int, int);
+static void SMI_FillRect(ScrnInfoPtr, int, int, int, int, unsigned long);
+static void SMI_BlitRect(ScrnInfoPtr, int, int, int, int, int, int);
+static void SMI_BlitTransRect(ScrnInfoPtr, int, int, int, int, int, int,
+ unsigned long);
+
+static
+DGAFunctionRec SMI_DGAFuncs =
+{
+ SMI_OpenFramebuffer,
+ NULL,
+ SMI_SetMode,
+ SMI_SetViewport,
+ SMI_GetViewport,
+ SMI_AccelSync,
+ SMI_FillRect,
+ SMI_BlitRect,
+ SMI_BlitTransRect
+};
+
+Bool
+SMI_DGAInit(ScreenPtr pScreen)
+{
+ ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
+ SMIPtr pSmi = SMIPTR(pScrn);
+ DGAModePtr modes = NULL, newmodes = NULL, currentMode;
+ DisplayModePtr pMode, firstMode;
+ int Bpp = pScrn->bitsPerPixel >> 3;
+ int num = 0;
+ Bool ret;
+
+ ENTER_PROC("SMI_DGAInit");
+
+ pMode = firstMode = pScrn->modes;
+
+ while (pMode)
+ {
+ newmodes = xrealloc(modes, (num + 1) * sizeof(DGAModeRec));
+ if (newmodes == NULL)
+ {
+ xfree(modes);
+ LEAVE_PROC("SMI_DGAInit");
+ return(FALSE);
+ }
+
+ modes = newmodes;
+
+ currentMode = modes + num;
+ num++;
+
+ currentMode->mode = pMode;
+ currentMode->flags = DGA_PIXMAP_AVAILABLE;
+ if (!pSmi->NoAccel)
+ {
+ currentMode->flags |= DGA_FILL_RECT
+ | DGA_BLIT_RECT
+ | DGA_BLIT_RECT_TRANS;
+ }
+ if (pMode->Flags & V_DBLSCAN)
+ {
+ currentMode->flags |= DGA_DOUBLESCAN;
+ }
+ if (pMode->Flags & V_INTERLACE)
+ {
+ currentMode->flags |= DGA_INTERLACED;
+ }
+
+ currentMode->byteOrder = pScrn->imageByteOrder;
+ currentMode->depth = pScrn->depth;
+ currentMode->bitsPerPixel = pScrn->bitsPerPixel;
+ currentMode->red_mask = pScrn->mask.red;
+ currentMode->green_mask = pScrn->mask.green;
+ currentMode->blue_mask = pScrn->mask.blue;
+ currentMode->visualClass = (Bpp == 1) ? PseudoColor : TrueColor;
+ currentMode->viewportWidth = pMode->HDisplay;
+ currentMode->viewportHeight = pMode->VDisplay;
+ currentMode->xViewportStep = (Bpp == 3) ? 8 : (8 / Bpp);
+ currentMode->yViewportStep = 1;
+ currentMode->viewportFlags = DGA_FLIP_RETRACE;
+ currentMode->offset = 0;
+ currentMode->address = pSmi->FBBase;
+
+ xf86ErrorFVerb(VERBLEV, "\tSMI_DGAInit %dx%d @ %d bpp\n",
+ currentMode->viewportWidth, currentMode->viewportHeight,
+ currentMode->bitsPerPixel);
+
+ currentMode->bytesPerScanline = ((pScrn->displayWidth * Bpp) + 15)
+ & ~15L;
+ currentMode->imageWidth = pScrn->displayWidth;
+ currentMode->imageHeight = pSmi->FBReserved
+ / currentMode->bytesPerScanline;
+ currentMode->pixmapWidth = currentMode->imageWidth;
+ currentMode->pixmapHeight = currentMode->imageHeight;
+ currentMode->maxViewportX = currentMode->imageWidth
+ - currentMode->viewportWidth;
+ currentMode->maxViewportY = currentMode->imageHeight
+ - currentMode->viewportHeight;
+
+ pMode = pMode->next;
+ if (pMode == firstMode)
+ {
+ break;
+ }
+ }
+
+ pSmi->numDGAModes = num;
+ pSmi->DGAModes = modes;
+
+ ret = DGAInit(pScreen, &SMI_DGAFuncs, modes, num);
+ LEAVE_PROC("SMI_DGAInit");
+ return(ret);
+}
+
+static Bool
+SMI_SetMode(ScrnInfoPtr pScrn, DGAModePtr pMode)
+{
+ static int OldDisplayWidth[MAXSCREENS];
+ int index = pScrn->pScreen->myNum;
+ SMIPtr pSmi = SMIPTR(pScrn);
+
+ ENTER_PROC("SMI_SetMode");
+
+ if (pMode == NULL)
+ { /* restore the original mode */
+
+ /* put the ScreenParameters back */
+ pScrn->displayWidth = OldDisplayWidth[index];
+
+ SMI_SwitchMode(index, pScrn->currentMode, 0);
+ pSmi->DGAactive = FALSE;
+ }
+ else
+ {
+ if (!pSmi->DGAactive)
+ { /* save the old parameters */
+ OldDisplayWidth[index] = pScrn->displayWidth;
+
+ pSmi->DGAactive = TRUE;
+ }
+
+ pScrn->displayWidth = pMode->bytesPerScanline
+ / (pMode->bitsPerPixel >> 3);
+
+ SMI_SwitchMode(index, pMode->mode, 0);
+ }
+
+ LEAVE_PROC("SMI_SetMode");
+ return(TRUE);
+}
+
+
+static int
+SMI_GetViewport(ScrnInfoPtr pScrn)
+{
+ SMIPtr pSmi = SMIPTR(pScrn);
+
+ ENTER_PROC("SMI_GetViewport");
+
+ LEAVE_PROC("SMI_GetViewport");
+
+ return(pSmi->DGAViewportStatus);
+}
+
+static void
+SMI_SetViewport(ScrnInfoPtr pScrn, int x, int y, int flags)
+{
+ SMIPtr pSmi = SMIPTR(pScrn);
+
+ ENTER_PROC("SMI_SetViewport");
+
+ SMI_AdjustFrame(pScrn->pScreen->myNum, x, y, flags);
+ pSmi->DGAViewportStatus = 0;
+
+ LEAVE_PROC("SMI_SetViewport");
+}
+
+static void
+SMI_FillRect(ScrnInfoPtr pScrn, int x, int y, int w, int h, unsigned long color)
+{
+ SMIPtr pSmi = SMIPTR(pScrn);
+
+ ENTER_PROC("SMI_FillRect");
+
+ if (pSmi->AccelInfoRec)
+ {
+ (*pSmi->AccelInfoRec->SetupForSolidFill)(pScrn, color, GXcopy, ~0);
+ (*pSmi->AccelInfoRec->SubsequentSolidFillRect)(pScrn, x, y, w, h);
+ SET_SYNC_FLAG(pSmi->AccelInfoRec);
+ }
+
+ LEAVE_PROC("SMI_FillRect");
+}
+
+static void
+SMI_BlitRect(ScrnInfoPtr pScrn, int srcx, int srcy, int w, int h, int dstx,
+ int dsty)
+{
+ SMIPtr pSmi = SMIPTR(pScrn);
+
+ ENTER_PROC("SMI_BlitRect");
+
+ if (pSmi->AccelInfoRec)
+ {
+ int xdir = ((srcx < dstx) && (srcy == dsty)) ? -1 : 1;
+ int ydir = (srcy < dsty) ? -1 : 1;
+
+ (*pSmi->AccelInfoRec->SetupForScreenToScreenCopy)(pScrn, xdir, ydir,
+ GXcopy, ~0, -1);
+ (*pSmi->AccelInfoRec->SubsequentScreenToScreenCopy)(pScrn, srcx, srcy,
+ dstx, dsty, w, h);
+ SET_SYNC_FLAG(pSmi->AccelInfoRec);
+ }
+
+ LEAVE_PROC("SMI_BlitRect");
+}
+
+static void
+SMI_BlitTransRect(ScrnInfoPtr pScrn, int srcx, int srcy, int w, int h, int dstx,
+ int dsty, unsigned long color)
+{
+ SMIPtr pSmi = SMIPTR(pScrn);
+
+ ENTER_PROC("SMI_BlitTraneRect");
+
+ if (pSmi->AccelInfoRec)
+ {
+ int xdir = ((srcx < dstx) && (srcy == dsty)) ? -1 : 1;
+ int ydir = (srcy < dsty) ? -1 : 1;
+
+ (*pSmi->AccelInfoRec->SetupForScreenToScreenCopy)(pScrn, xdir, ydir,
+ GXcopy, ~0, color);
+ (*pSmi->AccelInfoRec->SubsequentScreenToScreenCopy)(pScrn, srcx, srcy,
+ dstx, dsty, w, h);
+ SET_SYNC_FLAG(pSmi->AccelInfoRec);
+ }
+
+ LEAVE_PROC("SMI_BlitTraneRect");
+}
+
+static Bool
+SMI_OpenFramebuffer(ScrnInfoPtr pScrn, char **name, unsigned char **mem,
+ int *size, int *offset, int *flags)
+{
+ SMIPtr pSmi = SMIPTR(pScrn);
+
+ ENTER_PROC("SMI_OpenFrameBuffer");
+
+ *name = NULL; /* no special device */
+ *mem = (unsigned char*)pSmi->FBBase;
+ *size = pSmi->videoRAMBytes;
+ *offset = 0;
+ *flags = DGA_NEED_ROOT;
+
+ LEAVE_PROC("SMI_OpenFrameBuffer");
+ return(TRUE);
+}
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