diff options
Diffstat (limited to 'nx-X11/programs/Xserver/hw/xfree86/common/xf86DGA.c')
| -rw-r--r-- | nx-X11/programs/Xserver/hw/xfree86/common/xf86DGA.c | 1267 |
1 files changed, 1267 insertions, 0 deletions
diff --git a/nx-X11/programs/Xserver/hw/xfree86/common/xf86DGA.c b/nx-X11/programs/Xserver/hw/xfree86/common/xf86DGA.c new file mode 100644 index 000000000..a213e39e2 --- /dev/null +++ b/nx-X11/programs/Xserver/hw/xfree86/common/xf86DGA.c @@ -0,0 +1,1267 @@ +/* $XdotOrg: xc/programs/Xserver/hw/xfree86/common/xf86DGA.c,v 1.7 2005/11/08 03:12:43 alanc Exp $ */ +/* $XFree86: xc/programs/Xserver/hw/xfree86/common/xf86DGA.c,v 1.46 2002/12/03 18:17:40 tsi Exp $ */ +/* + * Copyright (c) 1998-2002 by The XFree86 Project, Inc. + * + * 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, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) 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 name of the copyright holder(s) + * and author(s) 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 copyright holder(s) and author(s). + * + * Written by Mark Vojkovich + */ + +#ifdef HAVE_XORG_CONFIG_H +#include <xorg-config.h> +#endif + +#include "xf86.h" +#include "xf86str.h" +#include "xf86Priv.h" +#include "dgaproc.h" +#include <X11/extensions/xf86dgastr.h> +#include "colormapst.h" +#include "pixmapstr.h" +#include "inputstr.h" +#include "globals.h" +#include "servermd.h" +#include "micmap.h" +#ifdef XKB +#include <X11/extensions/XKBsrv.h> +#endif +#include "xf86Xinput.h" + +static unsigned long DGAGeneration = 0; +static int DGAScreenIndex = -1; + +static Bool DGACloseScreen(int i, ScreenPtr pScreen); +static void DGADestroyColormap(ColormapPtr pmap); +static void DGAInstallColormap(ColormapPtr pmap); +static void DGAUninstallColormap(ColormapPtr pmap); + +static void +DGACopyModeInfo( + DGAModePtr mode, + XDGAModePtr xmode +); + +#if defined(XFree86LOADER) || !defined(XFreeXDGA) +int *XDGAEventBase = NULL; +#else +int *XDGAEventBase = &DGAEventBase; +#endif + +#define DGA_GET_SCREEN_PRIV(pScreen) \ + ((DGAScreenPtr)((pScreen)->devPrivates[DGAScreenIndex].ptr)) + + +typedef struct _FakedVisualList{ + Bool free; + VisualPtr pVisual; + struct _FakedVisualList *next; +} FakedVisualList; + + +typedef struct { + ScrnInfoPtr pScrn; + int numModes; + DGAModePtr modes; + CloseScreenProcPtr CloseScreen; + DestroyColormapProcPtr DestroyColormap; + InstallColormapProcPtr InstallColormap; + UninstallColormapProcPtr UninstallColormap; + DGADevicePtr current; + DGAFunctionPtr funcs; + int input; + ClientPtr client; + int pixmapMode; + FakedVisualList *fakedVisuals; + ColormapPtr dgaColormap; + ColormapPtr savedColormap; + Bool grabMouse; + Bool grabKeyboard; +} DGAScreenRec, *DGAScreenPtr; + + +Bool +DGAInit( + ScreenPtr pScreen, + DGAFunctionPtr funcs, + DGAModePtr modes, + int num +){ + ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum]; + DGAScreenPtr pScreenPriv; + int i; + + if(!funcs || !funcs->SetMode || !funcs->OpenFramebuffer) + return FALSE; + + if(!modes || num <= 0) + return FALSE; + + if(DGAGeneration != serverGeneration) { + if((DGAScreenIndex = AllocateScreenPrivateIndex()) < 0) + return FALSE; + DGAGeneration = serverGeneration; + } + + if(!(pScreenPriv = (DGAScreenPtr)xalloc(sizeof(DGAScreenRec)))) + return FALSE; + + pScreenPriv->pScrn = pScrn; + pScreenPriv->numModes = num; + pScreenPriv->modes = modes; + pScreenPriv->current = NULL; + + pScreenPriv->funcs = funcs; + pScreenPriv->input = 0; + pScreenPriv->client = NULL; + pScreenPriv->fakedVisuals = NULL; + pScreenPriv->dgaColormap = NULL; + pScreenPriv->savedColormap = NULL; + pScreenPriv->grabMouse = FALSE; + pScreenPriv->grabKeyboard = FALSE; + + for(i = 0; i < num; i++) + modes[i].num = i + 1; + +#ifdef PANORAMIX + if(!noPanoramiXExtension) + for(i = 0; i < num; i++) + modes[i].flags &= ~DGA_PIXMAP_AVAILABLE; +#endif + + + pScreen->devPrivates[DGAScreenIndex].ptr = (pointer)pScreenPriv; + pScreenPriv->CloseScreen = pScreen->CloseScreen; + pScreen->CloseScreen = DGACloseScreen; + pScreenPriv->DestroyColormap = pScreen->DestroyColormap; + pScreen->DestroyColormap = DGADestroyColormap; + pScreenPriv->InstallColormap = pScreen->InstallColormap; + pScreen->InstallColormap = DGAInstallColormap; + pScreenPriv->UninstallColormap = pScreen->UninstallColormap; + pScreen->UninstallColormap = DGAUninstallColormap; + + /* + * This is now set in InitOutput(). + * + pScrn->SetDGAMode = xf86SetDGAMode; + */ + + return TRUE; +} + +/* DGAReInitModes allows the driver to re-initialize + * the DGA mode list. + */ + +Bool +DGAReInitModes( + ScreenPtr pScreen, + DGAModePtr modes, + int num +){ + DGAScreenPtr pScreenPriv; + int i; + + /* No DGA? Ignore call (but don't make it look like it failed) */ + if(DGAScreenIndex < 0) + return TRUE; + + pScreenPriv = DGA_GET_SCREEN_PRIV(pScreen); + + /* Same as above */ + if(!pScreenPriv) + return TRUE; + + /* Can't do this while DGA is active */ + if(pScreenPriv->current) + return FALSE; + + /* Quick sanity check */ + if(!num) + modes = NULL; + else if(!modes) + num = 0; + + pScreenPriv->numModes = num; + pScreenPriv->modes = modes; + + /* This practically disables DGA. So be it. */ + if(!num) + return TRUE; + + for(i = 0; i < num; i++) + modes[i].num = i + 1; + +#ifdef PANORAMIX + if(!noPanoramiXExtension) + for(i = 0; i < num; i++) + modes[i].flags &= ~DGA_PIXMAP_AVAILABLE; +#endif + + return TRUE; +} + +static void +FreeMarkedVisuals(ScreenPtr pScreen) +{ + DGAScreenPtr pScreenPriv = DGA_GET_SCREEN_PRIV(pScreen); + FakedVisualList *prev, *curr, *tmp; + + if(!pScreenPriv->fakedVisuals) + return; + + prev = NULL; + curr = pScreenPriv->fakedVisuals; + + while(curr) { + if(curr->free) { + tmp = curr; + curr = curr->next; + if(prev) + prev->next = curr; + else + pScreenPriv->fakedVisuals = curr; + xfree(tmp->pVisual); + xfree(tmp); + } else { + prev = curr; + curr = curr->next; + } + } +} + + +static Bool +DGACloseScreen(int i, ScreenPtr pScreen) +{ + DGAScreenPtr pScreenPriv = DGA_GET_SCREEN_PRIV(pScreen); + + FreeMarkedVisuals(pScreen); + + pScreen->CloseScreen = pScreenPriv->CloseScreen; + pScreen->DestroyColormap = pScreenPriv->DestroyColormap; + pScreen->InstallColormap = pScreenPriv->InstallColormap; + pScreen->UninstallColormap = pScreenPriv->UninstallColormap; + + /* DGAShutdown() should have ensured that no DGA + screen were active by here */ + + xfree(pScreenPriv); + + return((*pScreen->CloseScreen)(i, pScreen)); +} + + +static void +DGADestroyColormap(ColormapPtr pmap) +{ + ScreenPtr pScreen = pmap->pScreen; + DGAScreenPtr pScreenPriv = DGA_GET_SCREEN_PRIV(pScreen); + VisualPtr pVisual = pmap->pVisual; + + if(pScreenPriv->fakedVisuals) { + FakedVisualList *curr = pScreenPriv->fakedVisuals; + + while(curr) { + if(curr->pVisual == pVisual) { + /* We can't get rid of them yet since FreeColormap + still needs the pVisual during the cleanup */ + curr->free = TRUE; + break; + } + curr = curr->next; + } + } + + if(pScreenPriv->DestroyColormap) { + pScreen->DestroyColormap = pScreenPriv->DestroyColormap; + (*pScreen->DestroyColormap)(pmap); + pScreen->DestroyColormap = DGADestroyColormap; + } +} + + +static void +DGAInstallColormap(ColormapPtr pmap) +{ + ScreenPtr pScreen = pmap->pScreen; + DGAScreenPtr pScreenPriv = DGA_GET_SCREEN_PRIV(pScreen); + + if(pScreenPriv->current && pScreenPriv->dgaColormap) { + if (pmap != pScreenPriv->dgaColormap) { + pScreenPriv->savedColormap = pmap; + pmap = pScreenPriv->dgaColormap; + } + } + + pScreen->InstallColormap = pScreenPriv->InstallColormap; + (*pScreen->InstallColormap)(pmap); + pScreen->InstallColormap = DGAInstallColormap; +} + +static void +DGAUninstallColormap(ColormapPtr pmap) +{ + ScreenPtr pScreen = pmap->pScreen; + DGAScreenPtr pScreenPriv = DGA_GET_SCREEN_PRIV(pScreen); + + if(pScreenPriv->current && pScreenPriv->dgaColormap) { + if (pmap == pScreenPriv->dgaColormap) { + pScreenPriv->dgaColormap = NULL; + } + } + + pScreen->UninstallColormap = pScreenPriv->UninstallColormap; + (*pScreen->UninstallColormap)(pmap); + pScreen->UninstallColormap = DGAUninstallColormap; +} + +int +xf86SetDGAMode( + int index, + int num, + DGADevicePtr devRet +){ + ScreenPtr pScreen = screenInfo.screens[index]; + DGAScreenPtr pScreenPriv; + ScrnInfoPtr pScrn; + DGADevicePtr device; + PixmapPtr pPix = NULL; + DGAModePtr pMode = NULL; + + /* First check if DGAInit was successful on this screen */ + if (DGAScreenIndex < 0) + return BadValue; + pScreenPriv = DGA_GET_SCREEN_PRIV(pScreen); + if (!pScreenPriv) + return BadValue; + pScrn = pScreenPriv->pScrn; + + if(!num) { + if(pScreenPriv->current) { + PixmapPtr oldPix = pScreenPriv->current->pPix; + if(oldPix) { + if(oldPix->drawable.id) + FreeResource(oldPix->drawable.id, RT_NONE); + else + (*pScreen->DestroyPixmap)(oldPix); + } + xfree(pScreenPriv->current); + pScreenPriv->current = NULL; + pScrn->vtSema = TRUE; + (*pScreenPriv->funcs->SetMode)(pScrn, NULL); + if(pScreenPriv->savedColormap) { + (*pScreen->InstallColormap)(pScreenPriv->savedColormap); + pScreenPriv->savedColormap = NULL; + } + pScreenPriv->dgaColormap = NULL; + (*pScrn->EnableDisableFBAccess)(index, TRUE); + + FreeMarkedVisuals(pScreen); + } + + pScreenPriv->grabMouse = FALSE; + pScreenPriv->grabKeyboard = FALSE; + + return Success; + } + + if(!pScrn->vtSema && !pScreenPriv->current) /* Really switched away */ + return BadAlloc; + + if((num > 0) && (num <= pScreenPriv->numModes)) + pMode = &(pScreenPriv->modes[num - 1]); + else + return BadValue; + + if(!(device = (DGADevicePtr)xalloc(sizeof(DGADeviceRec)))) + return BadAlloc; + + if(!pScreenPriv->current) { + Bool oldVTSema = pScrn->vtSema; + + pScrn->vtSema = FALSE; /* kludge until we rewrite VT switching */ + (*pScrn->EnableDisableFBAccess)(index, FALSE); + pScrn->vtSema = oldVTSema; + } + + if(!(*pScreenPriv->funcs->SetMode)(pScrn, pMode)) { + xfree(device); + return BadAlloc; + } + + pScrn->currentMode = pMode->mode; + + if(!pScreenPriv->current && !pScreenPriv->input) { + /* if it's multihead we need to warp the cursor off of + our screen so it doesn't get trapped */ + } + + pScrn->vtSema = FALSE; + + if(pScreenPriv->current) { + PixmapPtr oldPix = pScreenPriv->current->pPix; + if(oldPix) { + if(oldPix->drawable.id) + FreeResource(oldPix->drawable.id, RT_NONE); + else + (*pScreen->DestroyPixmap)(oldPix); + } + xfree(pScreenPriv->current); + pScreenPriv->current = NULL; + } + + if(pMode->flags & DGA_PIXMAP_AVAILABLE) { + if((pPix = (*pScreen->CreatePixmap)(pScreen, 0, 0, pMode->depth))) { + (*pScreen->ModifyPixmapHeader)(pPix, + pMode->pixmapWidth, pMode->pixmapHeight, + pMode->depth, pMode->bitsPerPixel, + pMode->bytesPerScanline, + (pointer)(pMode->address)); + } + } + + devRet->mode = device->mode = pMode; + devRet->pPix = device->pPix = pPix; + pScreenPriv->current = device; + pScreenPriv->pixmapMode = FALSE; + pScreenPriv->grabMouse = TRUE; + pScreenPriv->grabKeyboard = TRUE; + + return Success; +} + + + +/*********** exported ones ***************/ + +void +DGASetInputMode(int index, Bool keyboard, Bool mouse) +{ + ScreenPtr pScreen = screenInfo.screens[index]; + DGAScreenPtr pScreenPriv = DGA_GET_SCREEN_PRIV(pScreen); + + if (pScreenPriv) + { + pScreenPriv->grabMouse = mouse; + pScreenPriv->grabKeyboard = keyboard; + } +} + +Bool +DGAChangePixmapMode(int index, int *x, int *y, int mode) +{ + DGAScreenPtr pScreenPriv; + DGADevicePtr pDev; + DGAModePtr pMode; + PixmapPtr pPix; + + if(DGAScreenIndex < 0) + return FALSE; + + pScreenPriv = DGA_GET_SCREEN_PRIV(screenInfo.screens[index]); + + if(!pScreenPriv || !pScreenPriv->current || !pScreenPriv->current->pPix) + return FALSE; + + pDev = pScreenPriv->current; + pPix = pDev->pPix; + pMode = pDev->mode; + + if(mode) { + int shift = 2; + + if(*x > (pMode->pixmapWidth - pMode->viewportWidth)) + *x = pMode->pixmapWidth - pMode->viewportWidth; + if(*y > (pMode->pixmapHeight - pMode->viewportHeight)) + *y = pMode->pixmapHeight - pMode->viewportHeight; + + switch(xf86Screens[index]->bitsPerPixel) { + case 16: shift = 1; break; + case 32: shift = 0; break; + default: break; + } + + if(BITMAP_SCANLINE_PAD == 64) + shift++; + + *x = (*x >> shift) << shift; + + pPix->drawable.x = *x; + pPix->drawable.y = *y; + pPix->drawable.width = pMode->viewportWidth; + pPix->drawable.height = pMode->viewportHeight; + } else { + pPix->drawable.x = 0; + pPix->drawable.y = 0; + pPix->drawable.width = pMode->pixmapWidth; + pPix->drawable.height = pMode->pixmapHeight; + } + pPix->drawable.serialNumber = NEXT_SERIAL_NUMBER; + pScreenPriv->pixmapMode = mode; + + return TRUE; +} + +Bool +DGAAvailable(int index) +{ + if(DGAScreenIndex < 0) + return FALSE; + + if (!xf86NoSharedResources(((ScrnInfoPtr)screenInfo.screens[index]-> + devPrivates[xf86ScreenIndex].ptr)->scrnIndex,MEM)) + return FALSE; + + if(DGA_GET_SCREEN_PRIV(screenInfo.screens[index])) + return TRUE; + + return FALSE; +} + +Bool +DGAActive(int index) +{ + DGAScreenPtr pScreenPriv; + + if(DGAScreenIndex < 0) + return FALSE; + + pScreenPriv = DGA_GET_SCREEN_PRIV(screenInfo.screens[index]); + + if(pScreenPriv && pScreenPriv->current) + return TRUE; + + return FALSE; +} + + + +/* Called by the event code in case the server is abruptly terminated */ + +void +DGAShutdown() +{ + ScrnInfoPtr pScrn; + int i; + + if(DGAScreenIndex < 0) + return; + + for(i = 0; i < screenInfo.numScreens; i++) { + pScrn = xf86Screens[i]; + + (void)(*pScrn->SetDGAMode)(pScrn->scrnIndex, 0, NULL); + } +} + +/* Called by the extension to initialize a mode */ + +int +DGASetMode( + int index, + int num, + XDGAModePtr mode, + PixmapPtr *pPix +){ + ScrnInfoPtr pScrn = xf86Screens[index]; + DGADeviceRec device; + int ret; + + /* We rely on the extension to check that DGA is available */ + + ret = (*pScrn->SetDGAMode)(index, num, &device); + if((ret == Success) && num) { + DGACopyModeInfo(device.mode, mode); + *pPix = device.pPix; + } + + return ret; +} + +/* Called from the extension to let the DDX know which events are requested */ + +void +DGASelectInput( + int index, + ClientPtr client, + long mask +){ + DGAScreenPtr pScreenPriv = DGA_GET_SCREEN_PRIV(screenInfo.screens[index]); + + /* We rely on the extension to check that DGA is available */ + pScreenPriv->client = client; + pScreenPriv->input = mask; +} + +int +DGAGetViewportStatus(int index) +{ + DGAScreenPtr pScreenPriv = DGA_GET_SCREEN_PRIV(screenInfo.screens[index]); + + /* We rely on the extension to check that DGA is active */ + + if (!pScreenPriv->funcs->GetViewport) + return 0; + + return (*pScreenPriv->funcs->GetViewport)(pScreenPriv->pScrn); +} + +int +DGASetViewport( + int index, + int x, int y, + int mode +){ + DGAScreenPtr pScreenPriv = DGA_GET_SCREEN_PRIV(screenInfo.screens[index]); + + if (pScreenPriv->funcs->SetViewport) + (*pScreenPriv->funcs->SetViewport)(pScreenPriv->pScrn, x, y, mode); + return Success; +} + + +static int +BitsClear(CARD32 data) +{ + int bits = 0; + CARD32 mask; + + for(mask = 1; mask; mask <<= 1) { + if(!(data & mask)) bits++; + else break; + } + + return bits; +} + +int +DGACreateColormap(int index, ClientPtr client, int id, int mode, int alloc) +{ + ScreenPtr pScreen = screenInfo.screens[index]; + DGAScreenPtr pScreenPriv = DGA_GET_SCREEN_PRIV(pScreen); + FakedVisualList *fvlp; + VisualPtr pVisual; + DGAModePtr pMode; + ColormapPtr pmap; + + if(!mode || (mode > pScreenPriv->numModes)) + return BadValue; + + if((alloc != AllocNone) && (alloc != AllocAll)) + return BadValue; + + pMode = &(pScreenPriv->modes[mode - 1]); + + if(!(pVisual = xalloc(sizeof(VisualRec)))) + return BadAlloc; + + pVisual->vid = FakeClientID(0); + pVisual->class = pMode->visualClass; + pVisual->nplanes = pMode->depth; + pVisual->ColormapEntries = 1 << pMode->depth; + pVisual->bitsPerRGBValue = (pMode->depth + 2) / 3; + + switch (pVisual->class) { + case PseudoColor: + case GrayScale: + case StaticGray: + pVisual->bitsPerRGBValue = 8; /* not quite */ + pVisual->redMask = 0; + pVisual->greenMask = 0; + pVisual->blueMask = 0; + pVisual->offsetRed = 0; + pVisual->offsetGreen = 0; + pVisual->offsetBlue = 0; + break; + case DirectColor: + case TrueColor: + pVisual->ColormapEntries = 1 << pVisual->bitsPerRGBValue; + /* fall through */ + case StaticColor: + pVisual->redMask = pMode->red_mask; + pVisual->greenMask = pMode->green_mask; + pVisual->blueMask = pMode->blue_mask; + pVisual->offsetRed = BitsClear(pVisual->redMask); + pVisual->offsetGreen = BitsClear(pVisual->greenMask); + pVisual->offsetBlue = BitsClear(pVisual->blueMask); + } + + if(!(fvlp = xalloc(sizeof(FakedVisualList)))) { + xfree(pVisual); + return BadAlloc; + } + + fvlp->free = FALSE; + fvlp->pVisual = pVisual; + fvlp->next = pScreenPriv->fakedVisuals; + pScreenPriv->fakedVisuals = fvlp; + + LEGAL_NEW_RESOURCE(id, client); + + return CreateColormap(id, pScreen, pVisual, &pmap, alloc, client->index); +} + +/* Called by the extension to install a colormap on DGA active screens */ + +void +DGAInstallCmap(ColormapPtr cmap) +{ + ScreenPtr pScreen = cmap->pScreen; + DGAScreenPtr pScreenPriv = DGA_GET_SCREEN_PRIV(pScreen); + + /* We rely on the extension to check that DGA is active */ + + if(!pScreenPriv->dgaColormap) + pScreenPriv->savedColormap = miInstalledMaps[pScreen->myNum]; + + pScreenPriv->dgaColormap = cmap; + + (*pScreen->InstallColormap)(cmap); +} + +int +DGASync(int index) +{ + DGAScreenPtr pScreenPriv = DGA_GET_SCREEN_PRIV(screenInfo.screens[index]); + + /* We rely on the extension to check that DGA is active */ + + if (pScreenPriv->funcs->Sync) + (*pScreenPriv->funcs->Sync)(pScreenPriv->pScrn); + + return Success; +} + +int +DGAFillRect( + int index, + int x, int y, int w, int h, + unsigned long color +){ + DGAScreenPtr pScreenPriv = DGA_GET_SCREEN_PRIV(screenInfo.screens[index]); + + /* We rely on the extension to check that DGA is active */ + + if(pScreenPriv->funcs->FillRect && + (pScreenPriv->current->mode->flags & DGA_FILL_RECT)) { + + (*pScreenPriv->funcs->FillRect)(pScreenPriv->pScrn, x, y, w, h, color); + return Success; + } + return BadMatch; +} + +int +DGABlitRect( + int index, + int srcx, int srcy, + int w, int h, + int dstx, int dsty +){ + DGAScreenPtr pScreenPriv = DGA_GET_SCREEN_PRIV(screenInfo.screens[index]); + + /* We rely on the extension to check that DGA is active */ + + if(pScreenPriv->funcs->BlitRect && + (pScreenPriv->current->mode->flags & DGA_BLIT_RECT)) { + + (*pScreenPriv->funcs->BlitRect)(pScreenPriv->pScrn, + srcx, srcy, w, h, dstx, dsty); + return Success; + } + return BadMatch; +} + +int +DGABlitTransRect( + int index, + int srcx, int srcy, + int w, int h, + int dstx, int dsty, + unsigned long color +){ + DGAScreenPtr pScreenPriv = DGA_GET_SCREEN_PRIV(screenInfo.screens[index]); + + /* We rely on the extension to check that DGA is active */ + + if(pScreenPriv->funcs->BlitTransRect && + (pScreenPriv->current->mode->flags & DGA_BLIT_RECT_TRANS)) { + + (*pScreenPriv->funcs->BlitTransRect)(pScreenPriv->pScrn, + srcx, srcy, w, h, dstx, dsty, color); + return Success; + } + return BadMatch; +} + + +int +DGAGetModes(int index) +{ + DGAScreenPtr pScreenPriv = DGA_GET_SCREEN_PRIV(screenInfo.screens[index]); + /* We rely on the extension to check that DGA is available */ + + return pScreenPriv->numModes; +} + + +int +DGAGetModeInfo( + int index, + XDGAModePtr mode, + int num +){ + DGAScreenPtr pScreenPriv = DGA_GET_SCREEN_PRIV(screenInfo.screens[index]); + /* We rely on the extension to check that DGA is available */ + + if((num <= 0) || (num > pScreenPriv->numModes)) + return BadValue; + + DGACopyModeInfo(&(pScreenPriv->modes[num - 1]), mode); + + return Success; +} + + +static void +DGACopyModeInfo( + DGAModePtr mode, + XDGAModePtr xmode +){ + DisplayModePtr dmode = mode->mode; + + xmode->num = mode->num; + xmode->name = dmode->name; + xmode->VSync_num = (int)(dmode->VRefresh * 1000.0); + xmode->VSync_den = 1000; + xmode->flags = mode->flags; + xmode->imageWidth = mode->imageWidth; + xmode->imageHeight = mode->imageHeight; + xmode->pixmapWidth = mode->pixmapWidth; + xmode->pixmapHeight = mode->pixmapHeight; + xmode->bytesPerScanline = mode->bytesPerScanline; + xmode->byteOrder = mode->byteOrder; + xmode->depth = mode->depth; + xmode->bitsPerPixel = mode->bitsPerPixel; + xmode->red_mask = mode->red_mask; + xmode->green_mask = mode->green_mask; + xmode->blue_mask = mode->blue_mask; + xmode->visualClass = mode->visualClass; + xmode->viewportWidth = mode->viewportWidth; + xmode->viewportHeight = mode->viewportHeight; + xmode->xViewportStep = mode->xViewportStep; + xmode->yViewportStep = mode->yViewportStep; + xmode->maxViewportX = mode->maxViewportX; + xmode->maxViewportY = mode->maxViewportY; + xmode->viewportFlags = mode->viewportFlags; + xmode->reserved1 = mode->reserved1; + xmode->reserved2 = mode->reserved2; + xmode->offset = mode->offset; + + if(dmode->Flags & V_INTERLACE) xmode->flags |= DGA_INTERLACED; + if(dmode->Flags & V_DBLSCAN) xmode->flags |= DGA_DOUBLESCAN; +} + + +Bool +DGAVTSwitch(void) +{ + ScreenPtr pScreen; + int i; + + for(i = 0; i < screenInfo.numScreens; i++) { + pScreen = screenInfo.screens[i]; + + /* Alternatively, this could send events to DGA clients */ + + if(DGAScreenIndex >= 0) { + DGAScreenPtr pScreenPriv = DGA_GET_SCREEN_PRIV(pScreen); + + if(pScreenPriv && pScreenPriv->current) + return FALSE; + } + } + + return TRUE; +} + + +/* We have the power to steal or modify events that are about to get queued */ + +Bool +DGAStealKeyEvent(int index, xEvent *e) +{ + DGAScreenPtr pScreenPriv; + dgaEvent de; + + if(DGAScreenIndex < 0) /* no DGA */ + return FALSE; + + pScreenPriv = DGA_GET_SCREEN_PRIV(screenInfo.screens[index]); + + if(!pScreenPriv || !pScreenPriv->grabKeyboard) /* no direct mode */ + return FALSE; + + de.u.u.type = e->u.u.type + *XDGAEventBase; + de.u.u.detail = e->u.u.detail; + de.u.event.time = e->u.keyButtonPointer.time; + xf86eqEnqueue ((xEvent *) &de); + return TRUE; +} + +static int DGAMouseX, DGAMouseY; + +Bool +DGAStealMouseEvent(int index, xEvent *e, int dx, int dy) +{ + DGAScreenPtr pScreenPriv; + dgaEvent de; + + if(DGAScreenIndex < 0) /* no DGA */ + return FALSE; + + pScreenPriv = DGA_GET_SCREEN_PRIV(screenInfo.screens[index]); + + if(!pScreenPriv || !pScreenPriv->grabMouse) /* no direct mode */ + return FALSE; + + DGAMouseX += dx; + if (DGAMouseX < 0) + DGAMouseX = 0; + else if (DGAMouseX > screenInfo.screens[index]->width) + DGAMouseX = screenInfo.screens[index]->width; + DGAMouseY += dy; + if (DGAMouseY < 0) + DGAMouseY = 0; + else if (DGAMouseY > screenInfo.screens[index]->height) + DGAMouseY = screenInfo.screens[index]->height; + de.u.u.type = e->u.u.type + *XDGAEventBase; + de.u.u.detail = e->u.u.detail; + de.u.event.time = e->u.keyButtonPointer.time; + de.u.event.dx = dx; + de.u.event.dy = dy; + de.u.event.pad1 = DGAMouseX; + de.u.event.pad2 = DGAMouseY; + xf86eqEnqueue ((xEvent *) &de); + return TRUE; +} + +Bool +DGAIsDgaEvent (xEvent *e) +{ + int coreEquiv; + if (DGAScreenIndex < 0 || XDGAEventBase == 0) + return FALSE; + coreEquiv = e->u.u.type - *XDGAEventBase; + if (KeyPress <= coreEquiv && coreEquiv <= MotionNotify) + return TRUE; + return FALSE; +} + +#define NoSuchEvent 0x80000000 /* so doesn't match NoEventMask */ +static Mask filters[] = +{ + NoSuchEvent, /* 0 */ + NoSuchEvent, /* 1 */ + KeyPressMask, /* KeyPress */ + KeyReleaseMask, /* KeyRelease */ + ButtonPressMask, /* ButtonPress */ + ButtonReleaseMask, /* ButtonRelease */ + PointerMotionMask, /* MotionNotify (initial state) */ +}; + +static void +DGAProcessKeyboardEvent (ScreenPtr pScreen, dgaEvent *de, DeviceIntPtr keybd) +{ + int key, bit; + register BYTE *kptr; + register int i; + register CARD8 modifiers; + register CARD16 mask; + int coreEquiv; + xEvent core; + KeyClassPtr keyc = keybd->key; + DGAScreenPtr pScreenPriv = DGA_GET_SCREEN_PRIV(pScreen); + + coreEquiv = de->u.u.type - *XDGAEventBase; + + /* + * Fill in remaining event state + */ + de->u.event.dx = 0; + de->u.event.dy = 0; + de->u.event.screen = pScreen->myNum; + de->u.event.state = keyc->state | (inputInfo.pointer)->button->state; + + /* + * Keep the core state in sync by duplicating what + * CoreProcessKeyboardEvent does + */ + key = de->u.u.detail; + kptr = &keyc->down[key >> 3]; + bit = 1 << (key & 7); + modifiers = keyc->modifierMap[key]; + switch (coreEquiv) + { + case KeyPress: + inputInfo.pointer->valuator->motionHintWindow = NullWindow; + *kptr |= bit; + keyc->prev_state = keyc->state; +#ifdef XKB + if (noXkbExtension) +#endif + { + + for (i = 0, mask = 1; modifiers; i++, mask <<= 1) + { + if (mask & modifiers) + { + /* This key affects modifier "i" */ + keyc->modifierKeyCount[i]++; + keyc->state |= mask; + modifiers &= ~mask; + } + } + } + break; + case KeyRelease: + inputInfo.pointer->valuator->motionHintWindow = NullWindow; + *kptr &= ~bit; + keyc->prev_state = keyc->state; +#ifdef XKB + if (noXkbExtension) +#endif + { + for (i = 0, mask = 1; modifiers; i++, mask <<= 1) + { + if (mask & modifiers) { + /* This key affects modifier "i" */ + if (--keyc->modifierKeyCount[i] <= 0) { + keyc->state &= ~mask; + keyc->modifierKeyCount[i] = 0; + } + modifiers &= ~mask; + } + } + } + break; + } + /* + * Deliver the DGA event + */ + if (pScreenPriv->client) + { + /* If the DGA client has selected input, then deliver based on the usual filter */ + TryClientEvents (pScreenPriv->client, (xEvent *) de, 1, + filters[coreEquiv], pScreenPriv->input, 0); + } + else + { + /* If the keyboard is actively grabbed, deliver a grabbed core event */ + if (keybd->grab && !keybd->fromPassiveGrab) + { + core.u.u.type = coreEquiv; + core.u.u.detail = de->u.u.detail; + core.u.keyButtonPointer.time = de->u.event.time; + core.u.keyButtonPointer.eventX = de->u.event.dx; + core.u.keyButtonPointer.eventY = de->u.event.dy; + core.u.keyButtonPointer.rootX = de->u.event.dx; + core.u.keyButtonPointer.rootY = de->u.event.dy; + core.u.keyButtonPointer.state = de->u.event.state; + DeliverGrabbedEvent (&core, keybd, FALSE, 1); + } + } +} + +static void +DGAProcessPointerEvent (ScreenPtr pScreen, dgaEvent *de, DeviceIntPtr mouse) +{ + ButtonClassPtr butc = mouse->button; + int coreEquiv; + DGAScreenPtr pScreenPriv = DGA_GET_SCREEN_PRIV(pScreen); + xEvent core; + + coreEquiv = de->u.u.type - *XDGAEventBase; + /* + * Fill in remaining event state + */ + de->u.event.screen = pScreen->myNum; + de->u.event.state = butc->state | inputInfo.keyboard->key->state; + /* + * Keep the core state in sync by duplicating what + * CoreProcessPointerEvent does + */ + if (coreEquiv != MotionNotify) + { + register int key; + register BYTE *kptr; + int bit; + + key = de->u.u.detail; + kptr = &butc->down[key >> 3]; + bit = 1 << (key & 7); + switch (coreEquiv) + { + case ButtonPress: + mouse->valuator->motionHintWindow = NullWindow; + if (!(*kptr & bit)) + butc->buttonsDown++; + butc->motionMask = ButtonMotionMask; + *kptr |= bit; + if (key <= 5) + butc->state |= (Button1Mask >> 1) << key; + break; + case ButtonRelease: + mouse->valuator->motionHintWindow = NullWindow; + if (*kptr & bit) + --butc->buttonsDown; + if (!butc->buttonsDown) + butc->motionMask = 0; + *kptr &= ~bit; + if (key == 0) + return; + if (key <= 5) + butc->state &= ~((Button1Mask >> 1) << key); + break; + } + } + /* + * Deliver the DGA event + */ + if (pScreenPriv->client) + { + /* If the DGA client has selected input, then deliver based on the usual filter */ + TryClientEvents (pScreenPriv->client, (xEvent *) de, 1, + filters[coreEquiv], pScreenPriv->input, 0); + } + else + { + /* If the pointer is actively grabbed, deliver a grabbed core event */ + if (mouse->grab && !mouse->fromPassiveGrab) + { + core.u.u.type = coreEquiv; + core.u.u.detail = de->u.u.detail; + core.u.keyButtonPointer.time = de->u.event.time; + core.u.keyButtonPointer.eventX = de->u.event.dx; + core.u.keyButtonPointer.eventY = de->u.event.dy; + core.u.keyButtonPointer.rootX = de->u.event.dx; + core.u.keyButtonPointer.rootY = de->u.event.dy; + core.u.keyButtonPointer.state = de->u.event.state; + DeliverGrabbedEvent (&core, mouse, FALSE, 1); + } + } +} + +Bool +DGADeliverEvent (ScreenPtr pScreen, xEvent *e) +{ + dgaEvent *de = (dgaEvent *) e; + DGAScreenPtr pScreenPriv; + int coreEquiv; + + /* no DGA */ + if (DGAScreenIndex < 0 || XDGAEventBase == 0) + return FALSE; + pScreenPriv = DGA_GET_SCREEN_PRIV(pScreen); + + /* DGA not initialized on this screen */ + if (!pScreenPriv) + return FALSE; + + coreEquiv = de->u.u.type - *XDGAEventBase; + /* Not a DGA event */ + if (coreEquiv < KeyPress || coreEquiv > MotionNotify) + return FALSE; + + switch (coreEquiv) { + case KeyPress: + case KeyRelease: + DGAProcessKeyboardEvent (pScreen, de, inputInfo.keyboard); + break; + default: + DGAProcessPointerEvent (pScreen, de, inputInfo.pointer); + break; + } + return TRUE; +} + +Bool +DGAOpenFramebuffer( + int index, + char **name, + unsigned char **mem, + int *size, + int *offset, + int *flags +){ + DGAScreenPtr pScreenPriv = DGA_GET_SCREEN_PRIV(screenInfo.screens[index]); + + /* We rely on the extension to check that DGA is available */ + + return (*pScreenPriv->funcs->OpenFramebuffer)(pScreenPriv->pScrn, + name, mem, size, offset, flags); +} + +void +DGACloseFramebuffer(int index) +{ + DGAScreenPtr pScreenPriv = DGA_GET_SCREEN_PRIV(screenInfo.screens[index]); + + /* We rely on the extension to check that DGA is available */ + if(pScreenPriv->funcs->CloseFramebuffer) + (*pScreenPriv->funcs->CloseFramebuffer)(pScreenPriv->pScrn); +} + +/* For DGA 1.0 backwards compatibility only */ + +int +DGAGetOldDGAMode(int index) +{ + DGAScreenPtr pScreenPriv = DGA_GET_SCREEN_PRIV(screenInfo.screens[index]); + ScrnInfoPtr pScrn = pScreenPriv->pScrn; + DGAModePtr mode; + int i, w, h, p; + + /* We rely on the extension to check that DGA is available */ + + w = pScrn->currentMode->HDisplay; + h = pScrn->currentMode->VDisplay; + p = ((pScrn->displayWidth * (pScrn->bitsPerPixel >> 3)) + 3) & ~3L; + + for(i = 0; i < pScreenPriv->numModes; i++) { + mode = &(pScreenPriv->modes[i]); + + if((mode->viewportWidth == w) && (mode->viewportHeight == h) && + (mode->bytesPerScanline == p) && + (mode->bitsPerPixel == pScrn->bitsPerPixel) && + (mode->depth == pScrn->depth)) { + + return mode->num; + } + } + + return 0; +} + |