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-rw-r--r--src/smi_dga.c279
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diff --git a/src/smi_dga.c b/src/smi_dga.c
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--- a/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.
-*/
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include "xf86.h"
-#include "xf86_OSproc.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();
-
- pMode = firstMode = pScrn->modes;
-
- while (pMode) {
- newmodes = xrealloc(modes, (num + 1) * sizeof(DGAModeRec));
- if (newmodes == NULL) {
- xfree(modes);
- LEAVE(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(ret);
-}
-
-static Bool
-SMI_SetMode(ScrnInfoPtr pScrn, DGAModePtr pMode)
-{
- static int OldDisplayWidth[MAXSCREENS];
- int index = pScrn->pScreen->myNum;
- SMIPtr pSmi = SMIPTR(pScrn);
-
- ENTER();
-
- 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(TRUE);
-}
-
-
-static int
-SMI_GetViewport(ScrnInfoPtr pScrn)
-{
- SMIPtr pSmi = SMIPTR(pScrn);
-
- ENTER();
-
- LEAVE(pSmi->DGAViewportStatus);
-}
-
-static void
-SMI_SetViewport(ScrnInfoPtr pScrn, int x, int y, int flags)
-{
- SMIPtr pSmi = SMIPTR(pScrn);
-
- ENTER();
-
- SMI_AdjustFrame(pScrn->pScreen->myNum, x, y, flags);
- pSmi->DGAViewportStatus = 0;
-
- LEAVE();
-}
-
-static void
-SMI_FillRect(ScrnInfoPtr pScrn, int x, int y, int w, int h, unsigned long color)
-{
- SMIPtr pSmi = SMIPTR(pScrn);
-
- ENTER();
-
- if (pSmi->XAAInfoRec) {
- (*pSmi->XAAInfoRec->SetupForSolidFill)(pScrn, color, GXcopy, ~0);
- (*pSmi->XAAInfoRec->SubsequentSolidFillRect)(pScrn, x, y, w, h);
- SET_SYNC_FLAG(pSmi->XAAInfoRec);
- }
-
- LEAVE();
-}
-
-static void
-SMI_BlitRect(ScrnInfoPtr pScrn, int srcx, int srcy, int w, int h, int dstx,
- int dsty)
-{
- SMIPtr pSmi = SMIPTR(pScrn);
-
- ENTER();
-
- if (pSmi->XAAInfoRec) {
- int xdir = ((srcx < dstx) && (srcy == dsty)) ? -1 : 1;
- int ydir = (srcy < dsty) ? -1 : 1;
-
- (*pSmi->XAAInfoRec->SetupForScreenToScreenCopy)(pScrn, xdir, ydir, GXcopy, ~0, -1);
- (*pSmi->XAAInfoRec->SubsequentScreenToScreenCopy)(pScrn, srcx, srcy, dstx, dsty, w, h);
- SET_SYNC_FLAG(pSmi->XAAInfoRec);
- }
-
- LEAVE();
-}
-
-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();
-
- if (pSmi->XAAInfoRec) {
- int xdir = ((srcx < dstx) && (srcy == dsty)) ? -1 : 1;
- int ydir = (srcy < dsty) ? -1 : 1;
-
- (*pSmi->XAAInfoRec->SetupForScreenToScreenCopy)(pScrn, xdir, ydir, GXcopy, ~0, color);
- (*pSmi->XAAInfoRec->SubsequentScreenToScreenCopy)(pScrn, srcx, srcy, dstx, dsty, w, h);
- SET_SYNC_FLAG(pSmi->XAAInfoRec);
- }
-
- LEAVE();
-}
-
-static Bool
-SMI_OpenFramebuffer(ScrnInfoPtr pScrn, char **name, unsigned char **mem,
- int *size, int *offset, int *flags)
-{
- SMIPtr pSmi = SMIPTR(pScrn);
-
- ENTER();
-
- *name = NULL; /* no special device */
- *mem = (unsigned char*)pSmi->FBBase;
- *size = pSmi->videoRAMBytes;
- *offset = 0;
- *flags = DGA_NEED_ROOT;
-
- LEAVE(TRUE);
-}
-
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