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-rw-r--r--xorg-server/hw/xfree86/common/xf86DGA.c2454
1 files changed, 1227 insertions, 1227 deletions
diff --git a/xorg-server/hw/xfree86/common/xf86DGA.c b/xorg-server/hw/xfree86/common/xf86DGA.c
index 794a13171..ac8302169 100644
--- a/xorg-server/hw/xfree86/common/xf86DGA.c
+++ b/xorg-server/hw/xfree86/common/xf86DGA.c
@@ -1,1227 +1,1227 @@
-/*
- * 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/xf86dgaproto.h>
-#include "colormapst.h"
-#include "pixmapstr.h"
-#include "inputstr.h"
-#include "globals.h"
-#include "servermd.h"
-#include "micmap.h"
-#include "xkbsrv.h"
-#include "xf86Xinput.h"
-#include "exglobals.h"
-#include "exevents.h"
-#include "eventstr.h"
-#include "eventconvert.h"
-
-#include "mi.h"
-
-static int DGAScreenKeyIndex;
-static DevPrivateKey DGAScreenKey;
-static int mieq_installed = 0;
-
-static Bool DGACloseScreen(int i, ScreenPtr pScreen);
-static void DGADestroyColormap(ColormapPtr pmap);
-static void DGAInstallColormap(ColormapPtr pmap);
-static void DGAUninstallColormap(ColormapPtr pmap);
-static void DGAHandleEvent(int screen_num, InternalEvent *event,
- DeviceIntPtr device);
-
-static void
-DGACopyModeInfo(
- DGAModePtr mode,
- XDGAModePtr xmode
-);
-
-int *XDGAEventBase = NULL;
-
-#define DGA_GET_SCREEN_PRIV(pScreen) ((DGAScreenPtr) \
- dixLookupPrivate(&(pScreen)->devPrivates, DGAScreenKey))
-
-
-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;
-
- DGAScreenKey = &DGAScreenKeyIndex;
-
- pScreenPriv = DGA_GET_SCREEN_PRIV(pScreen);
-
- if (!pScreenPriv)
- {
- if(!(pScreenPriv = (DGAScreenPtr)xalloc(sizeof(DGAScreenRec))))
- return FALSE;
- dixSetPrivate(&pScreen->devPrivates, DGAScreenKey, 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;
- }
-
- 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
-
- 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(DGAScreenKey == NULL)
- 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);
-
- if (XDGAEventBase) {
- mieqSetHandler(ET_DGAEvent, NULL);
- }
-
- 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 (DGAScreenKey == NULL)
- 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, 0))) {
- (*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;
-
- if (!mieq_installed) {
- mieqSetHandler(ET_DGAEvent, DGAHandleEvent);
- mieq_installed = 1;
- }
- }
-}
-
-Bool
-DGAChangePixmapMode(int index, int *x, int *y, int mode)
-{
- DGAScreenPtr pScreenPriv;
- DGADevicePtr pDev;
- DGAModePtr pMode;
- PixmapPtr pPix;
-
- if(DGAScreenKey == NULL)
- 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(DGAScreenKey == NULL)
- return FALSE;
-
- if(DGA_GET_SCREEN_PRIV(screenInfo.screens[index]))
- return TRUE;
-
- return FALSE;
-}
-
-Bool
-DGAActive(int index)
-{
- DGAScreenPtr pScreenPriv;
-
- if(DGAScreenKey == NULL)
- 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(void)
-{
- ScrnInfoPtr pScrn;
- int i;
-
- if(DGAScreenKey == NULL)
- 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 = GetInstalledmiColormap(pScreen);
-
- 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(DGAScreenKey) {
- DGAScreenPtr pScreenPriv = DGA_GET_SCREEN_PRIV(pScreen);
-
- if(pScreenPriv && pScreenPriv->current)
- return FALSE;
- }
- }
-
- return TRUE;
-}
-
-Bool
-DGAStealKeyEvent(DeviceIntPtr dev, int index, int key_code, int is_down)
-{
- DGAScreenPtr pScreenPriv;
- DGAEvent event;
-
- if(DGAScreenKey == NULL) /* no DGA */
- return FALSE;
-
- if (key_code < 8 || key_code > 255)
- return FALSE;
-
- pScreenPriv = DGA_GET_SCREEN_PRIV(screenInfo.screens[index]);
-
- if(!pScreenPriv || !pScreenPriv->grabKeyboard) /* no direct mode */
- return FALSE;
-
- memset(&event, 0, sizeof(event));
- event.header = ET_Internal;
- event.type = ET_DGAEvent;
- event.length = sizeof(event);
- event.time = GetTimeInMillis();
- event.subtype = (is_down ? ET_KeyPress : ET_KeyRelease);
- event.detail = key_code;
- event.dx = 0;
- event.dy = 0;
- mieqEnqueue (dev, (InternalEvent*)&event);
-
- return TRUE;
-}
-
-static int DGAMouseX, DGAMouseY;
-
-Bool
-DGAStealMotionEvent(DeviceIntPtr dev, int index, int dx, int dy)
-{
- DGAScreenPtr pScreenPriv;
- DGAEvent event;
-
- if(DGAScreenKey == NULL) /* 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;
-
- memset(&event, 0, sizeof(event));
- event.header = ET_Internal;
- event.type = ET_DGAEvent;
- event.length = sizeof(event);
- event.time = GetTimeInMillis();
- event.subtype = ET_Motion;
- event.detail = 0;
- event.dx = dx;
- event.dy = dy;
- mieqEnqueue (dev, (InternalEvent*)&event);
- return TRUE;
-}
-
-Bool
-DGAStealButtonEvent(DeviceIntPtr dev, int index, int button, int is_down)
-{
- DGAScreenPtr pScreenPriv;
- DGAEvent event;
-
- if (DGAScreenKey == NULL)
- return FALSE;
-
- pScreenPriv = DGA_GET_SCREEN_PRIV(screenInfo.screens[index]);
-
- if (!pScreenPriv || !pScreenPriv->grabMouse)
- return FALSE;
-
- memset(&event, 0, sizeof(event));
- event.header = ET_Internal;
- event.type = ET_DGAEvent;
- event.length = sizeof(event);
- event.time = GetTimeInMillis();
- event.subtype = (is_down ? ET_ButtonPress : ET_ButtonRelease);
- event.detail = button;
- event.dx = 0;
- event.dy = 0;
- mieqEnqueue (dev, (InternalEvent*)&event);
-
- return TRUE;
-}
-
-/* We have the power to steal or modify events that are about to get queued */
-
-Bool
-DGAIsDgaEvent (xEvent *e)
-{
- int coreEquiv;
- if (DGAScreenKey == NULL || 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 *event, DeviceIntPtr keybd)
-{
- KeyClassPtr keyc = keybd->key;
- DGAScreenPtr pScreenPriv = DGA_GET_SCREEN_PRIV(pScreen);
- DeviceIntPtr pointer = GetPairedDevice(keybd);
- DeviceEvent ev;
-
- memset(&ev, 0, sizeof(ev));
- ev.length = sizeof(ev);
- ev.detail.key = event->detail;
- ev.type = event->subtype;
- ev.root_x = 0;
- ev.root_y = 0;
- ev.corestate = XkbStateFieldFromRec(&keyc->xkbInfo->state);
- ev.corestate |= pointer->button->state;
-
- UpdateDeviceState(keybd, &ev);
-
- /*
- * Deliver the DGA event
- */
- if (pScreenPriv->client)
- {
- dgaEvent de;
- de.u.u.type = *XDGAEventBase + GetCoreType((InternalEvent*)&ev);
- de.u.u.detail = event->detail;
- de.u.event.time = event->time;
- de.u.event.dx = 0;
- de.u.event.dy = 0;
- de.u.event.screen = pScreen->myNum;
- de.u.event.state = ev.corestate;
-
- /* If the DGA client has selected input, then deliver based on the usual filter */
- TryClientEvents (pScreenPriv->client, keybd, (xEvent *)&de, 1,
- filters[ev.type], pScreenPriv->input, 0);
- }
- else
- {
- /* If the keyboard is actively grabbed, deliver a grabbed core event */
- if (keybd->deviceGrab.grab && !keybd->deviceGrab.fromPassiveGrab)
- {
- ev.detail.key = event->detail;
- ev.time = event->time;
- ev.root_x = event->dx;
- ev.root_y = event->dy;
- ev.corestate = event->state;
- ev.deviceid = keybd->id;
- DeliverGrabbedEvent ((InternalEvent*)&ev, keybd, FALSE);
- }
- }
-}
-
-static void
-DGAProcessPointerEvent (ScreenPtr pScreen, DGAEvent *event, DeviceIntPtr mouse)
-{
- ButtonClassPtr butc = mouse->button;
- DGAScreenPtr pScreenPriv = DGA_GET_SCREEN_PRIV(pScreen);
- DeviceEvent ev;
- DeviceIntPtr master = GetMaster(mouse, MASTER_KEYBOARD);
-
- memset(&ev, 0, sizeof(ev));
- ev.header = ET_Internal;
- ev.length = sizeof(ev);
- ev.type = event->subtype;
- ev.corestate = butc->state;
- if (master && master->key)
- ev.corestate |= XkbStateFieldFromRec(&master->key->xkbInfo->state);
-
- UpdateDeviceState(mouse, &ev);
-
- /*
- * Deliver the DGA event
- */
- if (pScreenPriv->client)
- {
- dgaEvent de;
- int coreEquiv;
-
- coreEquiv = GetCoreType((InternalEvent*)&ev);
-
- de.u.u.type = *XDGAEventBase + coreEquiv;
- de.u.u.detail = event->detail;
- de.u.event.time = event->time;
- de.u.event.dx = 0;
- de.u.event.dy = 0;
- de.u.event.screen = pScreen->myNum;
- de.u.event.state = ev.corestate;
-
- /* If the DGA client has selected input, then deliver based on the usual filter */
- TryClientEvents (pScreenPriv->client, mouse, (xEvent *)&de, 1,
- filters[coreEquiv], pScreenPriv->input, 0);
- }
- else
- {
- /* If the pointer is actively grabbed, deliver a grabbed core event */
- if (mouse->deviceGrab.grab && !mouse->deviceGrab.fromPassiveGrab)
- {
- ev.detail.button = event->detail;
- ev.time = event->time;
- ev.root_x = event->dx;
- ev.root_y = event->dy;
- ev.corestate = event->state;
- DeliverGrabbedEvent ((InternalEvent*)&ev, mouse, FALSE);
- }
- }
-}
-
-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 = pad_to_int32(pScrn->displayWidth * bits_to_bytes(pScrn->bitsPerPixel));
-
- 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;
-}
-
-static void
-DGAHandleEvent(int screen_num, InternalEvent *ev, DeviceIntPtr device)
-{
- DGAEvent *event= &ev->dga_event;
- ScreenPtr pScreen = screenInfo.screens[screen_num];
- DGAScreenPtr pScreenPriv;
-
- /* no DGA */
- if (DGAScreenKey == NULL || XDGAEventBase == 0)
- return;
- pScreenPriv = DGA_GET_SCREEN_PRIV(pScreen);
-
- /* DGA not initialized on this screen */
- if (!pScreenPriv)
- return;
-
- switch (event->subtype) {
- case KeyPress:
- case KeyRelease:
- DGAProcessKeyboardEvent (pScreen, event, device);
- break;
- case MotionNotify:
- case ButtonPress:
- case ButtonRelease:
- DGAProcessPointerEvent (pScreen, event, device);
- break;
- default:
- break;
- }
-}
+/*
+ * 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/xf86dgaproto.h>
+#include "colormapst.h"
+#include "pixmapstr.h"
+#include "inputstr.h"
+#include "globals.h"
+#include "servermd.h"
+#include "micmap.h"
+#include "xkbsrv.h"
+#include "xf86Xinput.h"
+#include "exglobals.h"
+#include "exevents.h"
+#include "eventstr.h"
+#include "eventconvert.h"
+
+#include "mi.h"
+
+static int DGAScreenKeyIndex;
+static DevPrivateKey DGAScreenKey;
+static int mieq_installed = 0;
+
+static Bool DGACloseScreen(int i, ScreenPtr pScreen);
+static void DGADestroyColormap(ColormapPtr pmap);
+static void DGAInstallColormap(ColormapPtr pmap);
+static void DGAUninstallColormap(ColormapPtr pmap);
+static void DGAHandleEvent(int screen_num, InternalEvent *event,
+ DeviceIntPtr device);
+
+static void
+DGACopyModeInfo(
+ DGAModePtr mode,
+ XDGAModePtr xmode
+);
+
+int *XDGAEventBase = NULL;
+
+#define DGA_GET_SCREEN_PRIV(pScreen) ((DGAScreenPtr) \
+ dixLookupPrivate(&(pScreen)->devPrivates, DGAScreenKey))
+
+
+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;
+
+ DGAScreenKey = &DGAScreenKeyIndex;
+
+ pScreenPriv = DGA_GET_SCREEN_PRIV(pScreen);
+
+ if (!pScreenPriv)
+ {
+ if(!(pScreenPriv = (DGAScreenPtr)malloc(sizeof(DGAScreenRec))))
+ return FALSE;
+ dixSetPrivate(&pScreen->devPrivates, DGAScreenKey, 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;
+ }
+
+ 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
+
+ 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(DGAScreenKey == NULL)
+ 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;
+ free(tmp->pVisual);
+ free(tmp);
+ } else {
+ prev = curr;
+ curr = curr->next;
+ }
+ }
+}
+
+static Bool
+DGACloseScreen(int i, ScreenPtr pScreen)
+{
+ DGAScreenPtr pScreenPriv = DGA_GET_SCREEN_PRIV(pScreen);
+
+ if (XDGAEventBase) {
+ mieqSetHandler(ET_DGAEvent, NULL);
+ }
+
+ 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 */
+
+ free(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 (DGAScreenKey == NULL)
+ 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);
+ }
+ free(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)malloc(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)) {
+ free(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);
+ }
+ free(pScreenPriv->current);
+ pScreenPriv->current = NULL;
+ }
+
+ if(pMode->flags & DGA_PIXMAP_AVAILABLE) {
+ if((pPix = (*pScreen->CreatePixmap)(pScreen, 0, 0, pMode->depth, 0))) {
+ (*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;
+
+ if (!mieq_installed) {
+ mieqSetHandler(ET_DGAEvent, DGAHandleEvent);
+ mieq_installed = 1;
+ }
+ }
+}
+
+Bool
+DGAChangePixmapMode(int index, int *x, int *y, int mode)
+{
+ DGAScreenPtr pScreenPriv;
+ DGADevicePtr pDev;
+ DGAModePtr pMode;
+ PixmapPtr pPix;
+
+ if(DGAScreenKey == NULL)
+ 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(DGAScreenKey == NULL)
+ return FALSE;
+
+ if(DGA_GET_SCREEN_PRIV(screenInfo.screens[index]))
+ return TRUE;
+
+ return FALSE;
+}
+
+Bool
+DGAActive(int index)
+{
+ DGAScreenPtr pScreenPriv;
+
+ if(DGAScreenKey == NULL)
+ 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(void)
+{
+ ScrnInfoPtr pScrn;
+ int i;
+
+ if(DGAScreenKey == NULL)
+ 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 = malloc(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 = malloc(sizeof(FakedVisualList)))) {
+ free(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 = GetInstalledmiColormap(pScreen);
+
+ 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(DGAScreenKey) {
+ DGAScreenPtr pScreenPriv = DGA_GET_SCREEN_PRIV(pScreen);
+
+ if(pScreenPriv && pScreenPriv->current)
+ return FALSE;
+ }
+ }
+
+ return TRUE;
+}
+
+Bool
+DGAStealKeyEvent(DeviceIntPtr dev, int index, int key_code, int is_down)
+{
+ DGAScreenPtr pScreenPriv;
+ DGAEvent event;
+
+ if(DGAScreenKey == NULL) /* no DGA */
+ return FALSE;
+
+ if (key_code < 8 || key_code > 255)
+ return FALSE;
+
+ pScreenPriv = DGA_GET_SCREEN_PRIV(screenInfo.screens[index]);
+
+ if(!pScreenPriv || !pScreenPriv->grabKeyboard) /* no direct mode */
+ return FALSE;
+
+ memset(&event, 0, sizeof(event));
+ event.header = ET_Internal;
+ event.type = ET_DGAEvent;
+ event.length = sizeof(event);
+ event.time = GetTimeInMillis();
+ event.subtype = (is_down ? ET_KeyPress : ET_KeyRelease);
+ event.detail = key_code;
+ event.dx = 0;
+ event.dy = 0;
+ mieqEnqueue (dev, (InternalEvent*)&event);
+
+ return TRUE;
+}
+
+static int DGAMouseX, DGAMouseY;
+
+Bool
+DGAStealMotionEvent(DeviceIntPtr dev, int index, int dx, int dy)
+{
+ DGAScreenPtr pScreenPriv;
+ DGAEvent event;
+
+ if(DGAScreenKey == NULL) /* 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;
+
+ memset(&event, 0, sizeof(event));
+ event.header = ET_Internal;
+ event.type = ET_DGAEvent;
+ event.length = sizeof(event);
+ event.time = GetTimeInMillis();
+ event.subtype = ET_Motion;
+ event.detail = 0;
+ event.dx = dx;
+ event.dy = dy;
+ mieqEnqueue (dev, (InternalEvent*)&event);
+ return TRUE;
+}
+
+Bool
+DGAStealButtonEvent(DeviceIntPtr dev, int index, int button, int is_down)
+{
+ DGAScreenPtr pScreenPriv;
+ DGAEvent event;
+
+ if (DGAScreenKey == NULL)
+ return FALSE;
+
+ pScreenPriv = DGA_GET_SCREEN_PRIV(screenInfo.screens[index]);
+
+ if (!pScreenPriv || !pScreenPriv->grabMouse)
+ return FALSE;
+
+ memset(&event, 0, sizeof(event));
+ event.header = ET_Internal;
+ event.type = ET_DGAEvent;
+ event.length = sizeof(event);
+ event.time = GetTimeInMillis();
+ event.subtype = (is_down ? ET_ButtonPress : ET_ButtonRelease);
+ event.detail = button;
+ event.dx = 0;
+ event.dy = 0;
+ mieqEnqueue (dev, (InternalEvent*)&event);
+
+ return TRUE;
+}
+
+/* We have the power to steal or modify events that are about to get queued */
+
+Bool
+DGAIsDgaEvent (xEvent *e)
+{
+ int coreEquiv;
+ if (DGAScreenKey == NULL || 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 *event, DeviceIntPtr keybd)
+{
+ KeyClassPtr keyc = keybd->key;
+ DGAScreenPtr pScreenPriv = DGA_GET_SCREEN_PRIV(pScreen);
+ DeviceIntPtr pointer = GetPairedDevice(keybd);
+ DeviceEvent ev;
+
+ memset(&ev, 0, sizeof(ev));
+ ev.length = sizeof(ev);
+ ev.detail.key = event->detail;
+ ev.type = event->subtype;
+ ev.root_x = 0;
+ ev.root_y = 0;
+ ev.corestate = XkbStateFieldFromRec(&keyc->xkbInfo->state);
+ ev.corestate |= pointer->button->state;
+
+ UpdateDeviceState(keybd, &ev);
+
+ /*
+ * Deliver the DGA event
+ */
+ if (pScreenPriv->client)
+ {
+ dgaEvent de;
+ de.u.u.type = *XDGAEventBase + GetCoreType((InternalEvent*)&ev);
+ de.u.u.detail = event->detail;
+ de.u.event.time = event->time;
+ de.u.event.dx = 0;
+ de.u.event.dy = 0;
+ de.u.event.screen = pScreen->myNum;
+ de.u.event.state = ev.corestate;
+
+ /* If the DGA client has selected input, then deliver based on the usual filter */
+ TryClientEvents (pScreenPriv->client, keybd, (xEvent *)&de, 1,
+ filters[ev.type], pScreenPriv->input, 0);
+ }
+ else
+ {
+ /* If the keyboard is actively grabbed, deliver a grabbed core event */
+ if (keybd->deviceGrab.grab && !keybd->deviceGrab.fromPassiveGrab)
+ {
+ ev.detail.key = event->detail;
+ ev.time = event->time;
+ ev.root_x = event->dx;
+ ev.root_y = event->dy;
+ ev.corestate = event->state;
+ ev.deviceid = keybd->id;
+ DeliverGrabbedEvent ((InternalEvent*)&ev, keybd, FALSE);
+ }
+ }
+}
+
+static void
+DGAProcessPointerEvent (ScreenPtr pScreen, DGAEvent *event, DeviceIntPtr mouse)
+{
+ ButtonClassPtr butc = mouse->button;
+ DGAScreenPtr pScreenPriv = DGA_GET_SCREEN_PRIV(pScreen);
+ DeviceEvent ev;
+ DeviceIntPtr master = GetMaster(mouse, MASTER_KEYBOARD);
+
+ memset(&ev, 0, sizeof(ev));
+ ev.header = ET_Internal;
+ ev.length = sizeof(ev);
+ ev.type = event->subtype;
+ ev.corestate = butc->state;
+ if (master && master->key)
+ ev.corestate |= XkbStateFieldFromRec(&master->key->xkbInfo->state);
+
+ UpdateDeviceState(mouse, &ev);
+
+ /*
+ * Deliver the DGA event
+ */
+ if (pScreenPriv->client)
+ {
+ dgaEvent de;
+ int coreEquiv;
+
+ coreEquiv = GetCoreType((InternalEvent*)&ev);
+
+ de.u.u.type = *XDGAEventBase + coreEquiv;
+ de.u.u.detail = event->detail;
+ de.u.event.time = event->time;
+ de.u.event.dx = 0;
+ de.u.event.dy = 0;
+ de.u.event.screen = pScreen->myNum;
+ de.u.event.state = ev.corestate;
+
+ /* If the DGA client has selected input, then deliver based on the usual filter */
+ TryClientEvents (pScreenPriv->client, mouse, (xEvent *)&de, 1,
+ filters[coreEquiv], pScreenPriv->input, 0);
+ }
+ else
+ {
+ /* If the pointer is actively grabbed, deliver a grabbed core event */
+ if (mouse->deviceGrab.grab && !mouse->deviceGrab.fromPassiveGrab)
+ {
+ ev.detail.button = event->detail;
+ ev.time = event->time;
+ ev.root_x = event->dx;
+ ev.root_y = event->dy;
+ ev.corestate = event->state;
+ DeliverGrabbedEvent ((InternalEvent*)&ev, mouse, FALSE);
+ }
+ }
+}
+
+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 = pad_to_int32(pScrn->displayWidth * bits_to_bytes(pScrn->bitsPerPixel));
+
+ 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;
+}
+
+static void
+DGAHandleEvent(int screen_num, InternalEvent *ev, DeviceIntPtr device)
+{
+ DGAEvent *event= &ev->dga_event;
+ ScreenPtr pScreen = screenInfo.screens[screen_num];
+ DGAScreenPtr pScreenPriv;
+
+ /* no DGA */
+ if (DGAScreenKey == NULL || XDGAEventBase == 0)
+ return;
+ pScreenPriv = DGA_GET_SCREEN_PRIV(pScreen);
+
+ /* DGA not initialized on this screen */
+ if (!pScreenPriv)
+ return;
+
+ switch (event->subtype) {
+ case KeyPress:
+ case KeyRelease:
+ DGAProcessKeyboardEvent (pScreen, event, device);
+ break;
+ case MotionNotify:
+ case ButtonPress:
+ case ButtonRelease:
+ DGAProcessPointerEvent (pScreen, event, device);
+ break;
+ default:
+ break;
+ }
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-10 05:05:53 +0000