/* * Copyright 2000 by Rainer Keller, . * * 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. * * ALAN HOURIHANE 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: Rainer Keller, */ #ifdef HAVE_CONFIG_H #include "config.h" #endif #include "tseng.h" #include "dgaproc.h" static Bool Tseng_OpenFramebuffer(ScrnInfoPtr, char **, unsigned char **, int *, int *, int *); static Bool Tseng_SetMode(ScrnInfoPtr, DGAModePtr); static void Tseng_Sync(ScrnInfoPtr); static int Tseng_GetViewport(ScrnInfoPtr); static void Tseng_SetViewport(ScrnInfoPtr, int, int, int); #ifdef HAVE_XAA_H static void Tseng_FillRect(ScrnInfoPtr, int, int, int, int, unsigned long); static void Tseng_BlitRect(ScrnInfoPtr, int, int, int, int, int, int); /* static void Tseng_BlitTransRect(ScrnInfoPtr, int, int, int, int, int, int, unsigned long); */ #endif static DGAFunctionRec TsengDGAFuncs = { Tseng_OpenFramebuffer, NULL, /* Tseng_CloseFramebuffer */ Tseng_SetMode, Tseng_SetViewport, Tseng_GetViewport, Tseng_Sync, #ifdef HAVE_XAA_H Tseng_FillRect, Tseng_BlitRect, NULL /* Tseng_BlitTransRect */ #else NULL, NULL, NULL #endif }; Bool TsengDGAInit(ScreenPtr pScreen) { ScrnInfoPtr pScrn = xf86ScreenToScrn(pScreen); TsengPtr pTseng = TsengPTR(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 (!pTseng->DGAnumModes) { pMode = firstMode = pScrn->modes; while (pMode) { newmodes = realloc(modes, (num + 1) * sizeof (DGAModeRec)); if (!newmodes) { free(modes); return FALSE; } modes = newmodes; currentMode = modes + num; num++; (void)memset(currentMode, 1, sizeof(DGAModeRec)); currentMode->mode = pMode; currentMode->flags = DGA_PIXMAP_AVAILABLE; #ifdef HAVE_XAA_H currentMode->flags |= ((pTseng->UseAccel) ? (DGA_FILL_RECT | DGA_BLIT_RECT) : 0); #endif 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 = pTseng->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; } pTseng->DGAnumModes = num; pTseng->DGAModes = modes; } return DGAInit(pScreen, &TsengDGAFuncs, pTseng->DGAModes, pTseng->DGAnumModes); } static Bool Tseng_OpenFramebuffer( ScrnInfoPtr pScrn, char **name, unsigned char **mem, int *size, int *offset, int *flags ){ TsengPtr pTseng = TsengPTR(pScrn); *name = NULL; /* no special device */ *mem = (unsigned char*)(uintptr_t)pTseng->FbAddress; *size = pTseng->FbMapSize; *offset = 0; /* Always */ *flags = 0; /* Root permissions OS-dependent */ return TRUE; } static Bool Tseng_SetMode( ScrnInfoPtr pScrn, DGAModePtr pMode ){ TsengPtr pTseng = TsengPTR(pScrn); static int OldDisplayWidth[MAXSCREENS]; int index = pScrn->pScreen->myNum; Bool ret; if(!pMode) { /* restore the original mode */ /* put the ScreenParameters back */ pScrn->displayWidth = OldDisplayWidth[index]; ret = TsengModeInit(xf86Screens[index], pScrn->currentMode); pTseng->DGAactive = FALSE; } else { if(!pTseng->DGAactive) { /* save the old parameters */ OldDisplayWidth[index] = pScrn->displayWidth; pTseng->DGAactive = TRUE; } pScrn->displayWidth = pMode->bytesPerScanline / (pMode->bitsPerPixel >> 3); ret = TsengModeInit(xf86Screens[index], pMode->mode); } return ret; } static void Tseng_SetViewport( ScrnInfoPtr pScrn, int x, int y, int flags ){ TsengPtr pTseng = TsengPTR(pScrn); vgaHWPtr hwp = VGAHWPTR(pScrn); TsengAdjustFrame(ADJUST_FRAME_ARGS(pScrn, x, y)); while((hwp->readST01(hwp) & 0x08)); while(!(hwp->readST01(hwp) & 0x08)); pTseng->DGAViewportStatus = 0; /* TsengAdjustFrame loops until finished */ } static int Tseng_GetViewport( ScrnInfoPtr pScrn ){ TsengPtr pTseng = TsengPTR(pScrn); return pTseng->DGAViewportStatus; } static void Tseng_Sync( ScrnInfoPtr pScrn ){ TsengPtr pTseng = TsengPTR(pScrn); #ifdef HAVE_XAA_H if(pTseng->AccelInfoRec) { (*pTseng->AccelInfoRec->Sync)(pScrn); } #endif } #ifdef HAVE_XAA_H static void Tseng_FillRect ( ScrnInfoPtr pScrn, int x, int y, int w, int h, unsigned long color ){ TsengPtr pTseng = TsengPTR(pScrn); if(pTseng->AccelInfoRec) { (*pTseng->AccelInfoRec->SetupForSolidFill)(pScrn, color, GXcopy, ~0); (*pTseng->AccelInfoRec->SubsequentSolidFillRect)(pScrn, x, y, w, h); SET_SYNC_FLAG(pTseng->AccelInfoRec); } } static void Tseng_BlitRect( ScrnInfoPtr pScrn, int srcx, int srcy, int w, int h, int dstx, int dsty ){ TsengPtr pTseng = TsengPTR(pScrn); if(pTseng->AccelInfoRec) { int xdir = ((srcx < dstx) && (srcy == dsty)) ? -1 : 1; int ydir = (srcy < dsty) ? -1 : 1; (*pTseng->AccelInfoRec->SetupForScreenToScreenCopy)( pScrn, xdir, ydir, GXcopy, ~0, -1); (*pTseng->AccelInfoRec->SubsequentScreenToScreenCopy)( pScrn, srcx, srcy, dstx, dsty, w, h); SET_SYNC_FLAG(pTseng->AccelInfoRec); } } #endif