/* $XFree86: xc/programs/Xserver/hw/xfree86/drivers/cirrus/cir_dga.c,v 1.5 2001/02/15 17:39:27 eich Exp $ */ /* * Copyright 2000 by Egbert Eich * * Permission to use, copy, modify, distribute, and sell this software and its * documentation for any purpose is hereby granted without fee, provided that * the above copyright notice appear in all copies and that both that * copyright notice and this permission notice appear in supporting * documentation, and that the name of Alan Hourihane not be used in * advertising or publicity pertaining to distribution of the software without * specific, written prior permission. Alan Hourihane makes no representations * about the suitability of this software for any purpose. It is provided * "as is" without express or implied warranty. * * EGBERT EICH DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO * EVENT SHALL ALAN HOURIHANE BE LIABLE FOR ANY SPECIAL, INDIRECT OR * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR * PERFORMANCE OF THIS SOFTWARE. * * Authors: Adapted from: Alan Hourihane, * by: Egbert Eich */ #ifdef HAVE_CONFIG_H #include "config.h" #endif #include "xf86.h" #include "xf86_OSproc.h" #include "xf86_ansic.h" #include "xf86Pci.h" #include "xf86PciInfo.h" #include "xaa.h" #include "xaalocal.h" #include "vgaHW.h" #include "cir.h" #include "dgaproc.h" static Bool Cir_OpenFramebuffer(ScrnInfoPtr, char **, unsigned char **, int *, int *, int *); static Bool Cir_SetMode(ScrnInfoPtr, DGAModePtr); static void Cir_Sync(ScrnInfoPtr); static int Cir_GetViewport(ScrnInfoPtr); static void Cir_SetViewport(ScrnInfoPtr, int, int, int); static void Cir_FillRect(ScrnInfoPtr, int, int, int, int, unsigned long); static void Cir_BlitRect(ScrnInfoPtr, int, int, int, int, int, int); /* static void Cir_BlitTransRect(ScrnInfoPtr, int, int, int, int, int, int, unsigned long); */ static DGAFunctionRec CirDGAFuncs = { Cir_OpenFramebuffer, NULL, /* Cir_CloseFramebuffer */ Cir_SetMode, Cir_SetViewport, Cir_GetViewport, Cir_Sync, Cir_FillRect, Cir_BlitRect, NULL /* Cir_BlitTransRect */ }; Bool CirDGAInit(ScreenPtr pScreen) { ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum]; CirPtr pCir = CIRPTR(pScrn); DGAModePtr modes = NULL, newmodes = NULL, currentMode; DisplayModePtr pMode, firstMode; int Bpp = pScrn->bitsPerPixel >> 3; int num = 0; int imlines = (pScrn->videoRam * 1024) / (pScrn->displayWidth * (pScrn->bitsPerPixel >> 3)); if (!pCir->DGAnumModes) { pMode = firstMode = pScrn->modes; while (pMode) { newmodes = xrealloc(modes, (num + 1) * sizeof (DGAModeRec)); if (!newmodes) { xfree(modes); return FALSE; } modes = newmodes; currentMode = modes + num; num++; (void)memset(currentMode, 1, sizeof(DGAModeRec)); currentMode->mode = pMode; currentMode->flags = DGA_PIXMAP_AVAILABLE | ((!pCir->NoAccel) ? (DGA_FILL_RECT | DGA_BLIT_RECT) : 0); 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 = 1; /* The granularity of x and y pos. */ currentMode->yViewportStep = 1; currentMode->viewportFlags = 0 /*DGA_FLIP_RETRACE*/; currentMode->offset = 0; currentMode->address = pCir->FbBase; currentMode->bytesPerScanline = ((pScrn->displayWidth * Bpp) + 3) & ~3L; currentMode->pixmapWidth = currentMode->imageWidth = pScrn->displayWidth; currentMode->pixmapHeight = currentMode->imageHeight = imlines; currentMode->maxViewportX = currentMode->imageWidth - currentMode->viewportWidth; /* this might need to get clamped to some maximum */ currentMode->maxViewportY = currentMode->imageHeight - currentMode->viewportHeight; pMode = pMode->next; if(pMode == firstMode) break; } pCir->DGAnumModes = num; pCir->DGAModes = modes; } return DGAInit(pScreen, &CirDGAFuncs, pCir->DGAModes, pCir->DGAnumModes); } static Bool Cir_OpenFramebuffer( ScrnInfoPtr pScrn, char **name, unsigned char **mem, int *size, int *offset, int *flags ){ CirPtr pCir = CIRPTR(pScrn); *name = NULL; /* no special device */ *mem = (unsigned char*)(long)pCir->FbAddress; *size = pCir->FbMapSize; *offset = 0; /* Always */ *flags = 0; /* Root permissions OS-dependent */ return TRUE; } static Bool Cir_SetMode( ScrnInfoPtr pScrn, DGAModePtr pMode ){ CirPtr pCir = CIRPTR(pScrn); static int OldDisplayWidth[MAXSCREENS]; int index = pScrn->pScreen->myNum; Bool ret = FALSE; if(!pMode) { /* restore the original mode */ /* put the ScreenParameters back */ pScrn->displayWidth = OldDisplayWidth[index]; ret = pCir->DGAModeInit(xf86Screens[index], pScrn->currentMode); pCir->DGAactive = FALSE; } else { if(!pCir->DGAactive) { /* save the old parameters */ OldDisplayWidth[index] = pScrn->displayWidth; pCir->DGAactive = TRUE; } pScrn->displayWidth = pMode->bytesPerScanline / (pMode->bitsPerPixel >> 3); ret = pCir->DGAModeInit(xf86Screens[index], pMode->mode); } return ret; } static void Cir_SetViewport( ScrnInfoPtr pScrn, int x, int y, int flags ){ CirPtr pCir = CIRPTR(pScrn); vgaHWPtr hwp = VGAHWPTR(pScrn); pScrn->AdjustFrame(pScrn->pScreen->myNum, x, y, flags); while((hwp->readST01(hwp) & 0x08)); while(!(hwp->readST01(hwp) & 0x08)); pCir->DGAViewportStatus = 0; /* AdjustFrame loops until finished */ } static int Cir_GetViewport( ScrnInfoPtr pScrn ){ CirPtr pCir = CIRPTR(pScrn); return pCir->DGAViewportStatus; } static void Cir_Sync( ScrnInfoPtr pScrn ){ CirPtr pCir = CIRPTR(pScrn); if(pCir->AccelInfoRec) { (*pCir->AccelInfoRec->Sync)(pScrn); } } static void Cir_FillRect ( ScrnInfoPtr pScrn, int x, int y, int w, int h, unsigned long color ){ CirPtr pCir = CIRPTR(pScrn); if(pCir->AccelInfoRec) { (*pCir->AccelInfoRec->SetupForSolidFill)(pScrn, color, GXcopy, ~0); (*pCir->AccelInfoRec->SubsequentSolidFillRect)(pScrn, x, y, w, h); SET_SYNC_FLAG(pCir->AccelInfoRec); } } static void Cir_BlitRect( ScrnInfoPtr pScrn, int srcx, int srcy, int w, int h, int dstx, int dsty ){ CirPtr pCir = CIRPTR(pScrn); if(pCir->AccelInfoRec) { int xdir = ((srcx < dstx) && (srcy == dsty)) ? -1 : 1; int ydir = (srcy < dsty) ? -1 : 1; (*pCir->AccelInfoRec->SetupForScreenToScreenCopy)( pScrn, xdir, ydir, GXcopy, ~0, -1); (*pCir->AccelInfoRec->SubsequentScreenToScreenCopy)( pScrn, srcx, srcy, dstx, dsty, w, h); SET_SYNC_FLAG(pCir->AccelInfoRec); } }