xorg-xf86-video-remoteorsk/src/dummy_driver.c

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/*
* Copyright 2002, SuSE Linux AG, Author: Egbert Eich
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
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/* All drivers should typically include these */
#include "xf86.h"
#include "xf86_OSproc.h"
/* All drivers initialising the SW cursor need this */
#include "mipointer.h"
/* All drivers implementing backing store need this */
#include "mibstore.h"
/* All drivers using the mi colormap manipulation need this */
#include "micmap.h"
/* identifying atom needed by magnifiers */
#include <X11/Xatom.h>
#include "property.h"
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#include "xf86cmap.h"
#include "xf86fbman.h"
#include "fb.h"
#include "picturestr.h"
#include "xf86xv.h"
#include <X11/extensions/Xv.h>
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/*
* Driver data structures.
*/
#include "dummy.h"
/* These need to be checked */
#include <X11/X.h>
#include <X11/Xproto.h>
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#include "scrnintstr.h"
#include "servermd.h"
#ifdef XFreeXDGA
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#define _XF86DGA_SERVER_
#include <X11/extensions/xf86dgastr.h>
#endif
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/* Mandatory functions */
static const OptionInfoRec * DUMMYAvailableOptions(int chipid, int busid);
static void DUMMYIdentify(int flags);
static Bool DUMMYProbe(DriverPtr drv, int flags);
static Bool DUMMYPreInit(ScrnInfoPtr pScrn, int flags);
static Bool DUMMYScreenInit(int Index, ScreenPtr pScreen, int argc,
char **argv);
static Bool DUMMYEnterVT(int scrnIndex, int flags);
static void DUMMYLeaveVT(int scrnIndex, int flags);
static Bool DUMMYCloseScreen(int scrnIndex, ScreenPtr pScreen);
static Bool DUMMYCreateWindow(WindowPtr pWin);
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static void DUMMYFreeScreen(int scrnIndex, int flags);
static ModeStatus DUMMYValidMode(int scrnIndex, DisplayModePtr mode,
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Bool verbose, int flags);
static Bool DUMMYSaveScreen(ScreenPtr pScreen, int mode);
/* Internally used functions */
static Bool dummyModeInit(ScrnInfoPtr pScrn, DisplayModePtr mode);
static void dummySave(ScrnInfoPtr pScrn);
static void dummyRestore(ScrnInfoPtr pScrn, Bool restoreText);
static Bool dummyDriverFunc(ScrnInfoPtr pScrn, xorgDriverFuncOp op,
pointer ptr);
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/* static void DUMMYDisplayPowerManagementSet(ScrnInfoPtr pScrn, */
/* int PowerManagementMode, int flags); */
#define DUMMY_VERSION 4000
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#define DUMMY_NAME "DUMMY"
#define DUMMY_DRIVER_NAME "dummy"
#define DUMMY_MAJOR_VERSION PACKAGE_VERSION_MAJOR
#define DUMMY_MINOR_VERSION PACKAGE_VERSION_MINOR
#define DUMMY_PATCHLEVEL PACKAGE_VERSION_PATCHLEVEL
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/*
* This is intentionally screen-independent. It indicates the binding
* choice made in the first PreInit.
*/
static int pix24bpp = 0;
/*
* This contains the functions needed by the server after loading the driver
* module. It must be supplied, and gets passed back by the SetupProc
* function in the dynamic case. In the static case, a reference to this
* is compiled in, and this requires that the name of this DriverRec be
* an upper-case version of the driver name.
*/
_X_EXPORT DriverRec DUMMY = {
DUMMY_VERSION,
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DUMMY_DRIVER_NAME,
DUMMYIdentify,
DUMMYProbe,
DUMMYAvailableOptions,
NULL,
0,
dummyDriverFunc
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};
static SymTabRec DUMMYChipsets[] = {
{ DUMMY_CHIP, "dummy" },
{ -1, NULL }
};
typedef enum {
OPTION_SW_CURSOR
} DUMMYOpts;
static const OptionInfoRec DUMMYOptions[] = {
{ OPTION_SW_CURSOR, "SWcursor", OPTV_BOOLEAN, {0}, FALSE },
{ -1, NULL, OPTV_NONE, {0}, FALSE }
};
#ifdef XFree86LOADER
static MODULESETUPPROTO(dummySetup);
static XF86ModuleVersionInfo dummyVersRec =
{
"dummy",
MODULEVENDORSTRING,
MODINFOSTRING1,
MODINFOSTRING2,
XORG_VERSION_CURRENT,
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DUMMY_MAJOR_VERSION, DUMMY_MINOR_VERSION, DUMMY_PATCHLEVEL,
ABI_CLASS_VIDEODRV,
ABI_VIDEODRV_VERSION,
MOD_CLASS_VIDEODRV,
{0,0,0,0}
};
/*
* This is the module init data.
* Its name has to be the driver name followed by ModuleData
*/
_X_EXPORT XF86ModuleData dummyModuleData = { &dummyVersRec, dummySetup, NULL };
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static pointer
dummySetup(pointer module, pointer opts, int *errmaj, int *errmin)
{
static Bool setupDone = FALSE;
if (!setupDone) {
setupDone = TRUE;
xf86AddDriver(&DUMMY, module, HaveDriverFuncs);
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/*
* Modules that this driver always requires can be loaded here
* by calling LoadSubModule().
*/
/*
* The return value must be non-NULL on success even though there
* is no TearDownProc.
*/
return (pointer)1;
} else {
if (errmaj) *errmaj = LDR_ONCEONLY;
return NULL;
}
}
#endif /* XFree86LOADER */
static Bool
DUMMYGetRec(ScrnInfoPtr pScrn)
{
/*
* Allocate a DUMMYRec, and hook it into pScrn->driverPrivate.
* pScrn->driverPrivate is initialised to NULL, so we can check if
* the allocation has already been done.
*/
if (pScrn->driverPrivate != NULL)
return TRUE;
pScrn->driverPrivate = xnfcalloc(sizeof(DUMMYRec), 1);
if (pScrn->driverPrivate == NULL)
return FALSE;
return TRUE;
}
static void
DUMMYFreeRec(ScrnInfoPtr pScrn)
{
if (pScrn->driverPrivate == NULL)
return;
xfree(pScrn->driverPrivate);
pScrn->driverPrivate = NULL;
}
static const OptionInfoRec *
DUMMYAvailableOptions(int chipid, int busid)
{
return DUMMYOptions;
}
/* Mandatory */
static void
DUMMYIdentify(int flags)
{
xf86PrintChipsets(DUMMY_NAME, "Driver for Dummy chipsets",
DUMMYChipsets);
}
/* Mandatory */
static Bool
DUMMYProbe(DriverPtr drv, int flags)
{
Bool foundScreen = FALSE;
int numDevSections, numUsed;
GDevPtr *devSections;
int i;
if (flags & PROBE_DETECT)
return FALSE;
/*
* Find the config file Device sections that match this
* driver, and return if there are none.
*/
if ((numDevSections = xf86MatchDevice(DUMMY_DRIVER_NAME,
&devSections)) <= 0) {
return FALSE;
}
numUsed = numDevSections;
if (numUsed > 0) {
for (i = 0; i < numUsed; i++) {
ScrnInfoPtr pScrn = NULL;
int entityIndex =
xf86ClaimNoSlot(drv,DUMMY_CHIP,devSections[i],TRUE);
/* Allocate a ScrnInfoRec and claim the slot */
if ((pScrn = xf86AllocateScreen(drv,0 ))) {
xf86AddEntityToScreen(pScrn,entityIndex);
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pScrn->driverVersion = DUMMY_VERSION;
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pScrn->driverName = DUMMY_DRIVER_NAME;
pScrn->name = DUMMY_NAME;
pScrn->Probe = DUMMYProbe;
pScrn->PreInit = DUMMYPreInit;
pScrn->ScreenInit = DUMMYScreenInit;
pScrn->SwitchMode = DUMMYSwitchMode;
pScrn->AdjustFrame = DUMMYAdjustFrame;
pScrn->EnterVT = DUMMYEnterVT;
pScrn->LeaveVT = DUMMYLeaveVT;
pScrn->FreeScreen = DUMMYFreeScreen;
pScrn->ValidMode = DUMMYValidMode;
foundScreen = TRUE;
}
}
}
return foundScreen;
}
# define RETURN \
{ DUMMYFreeRec(pScrn);\
return FALSE;\
}
/* Mandatory */
Bool
DUMMYPreInit(ScrnInfoPtr pScrn, int flags)
{
ClockRangePtr clockRanges;
int i;
DUMMYPtr dPtr;
int maxClock = 230000;
GDevPtr device = xf86GetEntityInfo(pScrn->entityList[0])->device;
if (flags & PROBE_DETECT)
return TRUE;
/* Allocate the DummyRec driverPrivate */
if (!DUMMYGetRec(pScrn)) {
return FALSE;
}
dPtr = DUMMYPTR(pScrn);
pScrn->chipset = (char *)xf86TokenToString(DUMMYChipsets,
DUMMY_CHIP);
xf86DrvMsg(pScrn->scrnIndex, X_INFO, "Chipset is a DUMMY\n");
pScrn->monitor = pScrn->confScreen->monitor;
if (!xf86SetDepthBpp(pScrn, 0, 0, 0, Support24bppFb | Support32bppFb))
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return FALSE;
else {
/* Check that the returned depth is one we support */
switch (pScrn->depth) {
case 8:
case 15:
case 16:
case 24:
break;
default:
xf86DrvMsg(pScrn->scrnIndex, X_ERROR,
"Given depth (%d) is not supported by this driver\n",
pScrn->depth);
return FALSE;
}
}
xf86PrintDepthBpp(pScrn);
if (pScrn->depth == 8)
pScrn->rgbBits = 8;
/* Get the depth24 pixmap format */
if (pScrn->depth == 24 && pix24bpp == 0)
pix24bpp = xf86GetBppFromDepth(pScrn, 24);
/*
* This must happen after pScrn->display has been set because
* xf86SetWeight references it.
*/
if (pScrn->depth > 8) {
/* The defaults are OK for us */
rgb zeros = {0, 0, 0};
if (!xf86SetWeight(pScrn, zeros, zeros)) {
return FALSE;
} else {
/* XXX check that weight returned is supported */
;
}
}
if (!xf86SetDefaultVisual(pScrn, -1))
return FALSE;
if (pScrn->depth > 1) {
Gamma zeros = {0.0, 0.0, 0.0};
if (!xf86SetGamma(pScrn, zeros))
return FALSE;
}
xf86CollectOptions(pScrn, device->options);
/* Process the options */
if (!(dPtr->Options = xalloc(sizeof(DUMMYOptions))))
return FALSE;
memcpy(dPtr->Options, DUMMYOptions, sizeof(DUMMYOptions));
xf86ProcessOptions(pScrn->scrnIndex, pScrn->options, dPtr->Options);
xf86GetOptValBool(dPtr->Options, OPTION_SW_CURSOR,&dPtr->swCursor);
if (device->videoRam != 0) {
pScrn->videoRam = device->videoRam;
xf86DrvMsg(pScrn->scrnIndex, X_CONFIG, "VideoRAM: %d kByte\n",
pScrn->videoRam);
} else {
pScrn->videoRam = 4096;
xf86DrvMsg(pScrn->scrnIndex, X_PROBED, "VideoRAM: %d kByte\n",
pScrn->videoRam);
}
if (device->dacSpeeds[0] != 0) {
maxClock = device->dacSpeeds[0];
xf86DrvMsg(pScrn->scrnIndex, X_CONFIG, "Max Clock: %d kHz\n",
maxClock);
} else {
xf86DrvMsg(pScrn->scrnIndex, X_PROBED, "Max Clock: %d kHz\n",
maxClock);
}
pScrn->progClock = TRUE;
/*
* Setup the ClockRanges, which describe what clock ranges are available,
* and what sort of modes they can be used for.
*/
clockRanges = (ClockRangePtr)xnfcalloc(sizeof(ClockRange), 1);
clockRanges->next = NULL;
clockRanges->ClockMulFactor = 1;
clockRanges->minClock = 11000; /* guessed §§§ */
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clockRanges->maxClock = 300000;
clockRanges->clockIndex = -1; /* programmable */
clockRanges->interlaceAllowed = TRUE;
clockRanges->doubleScanAllowed = TRUE;
/* Subtract memory for HW cursor */
{
int apertureSize = (pScrn->videoRam * 1024);
i = xf86ValidateModes(pScrn, pScrn->monitor->Modes,
pScrn->display->modes, clockRanges,
NULL, 256, 2048,(8 * pScrn->bitsPerPixel),
128, 2048, pScrn->display->virtualX,
pScrn->display->virtualY, apertureSize,
LOOKUP_BEST_REFRESH);
if (i == -1)
RETURN;
}
/* Prune the modes marked as invalid */
xf86PruneDriverModes(pScrn);
if (i == 0 || pScrn->modes == NULL) {
xf86DrvMsg(pScrn->scrnIndex, X_ERROR, "No valid modes found\n");
RETURN;
}
/*
* Set the CRTC parameters for all of the modes based on the type
* of mode, and the chipset's interlace requirements.
*
* Calling this is required if the mode->Crtc* values are used by the
* driver and if the driver doesn't provide code to set them. They
* are not pre-initialised at all.
*/
xf86SetCrtcForModes(pScrn, 0);
/* Set the current mode to the first in the list */
pScrn->currentMode = pScrn->modes;
/* Print the list of modes being used */
xf86PrintModes(pScrn);
/* If monitor resolution is set on the command line, use it */
xf86SetDpi(pScrn, 0, 0);
if (xf86LoadSubModule(pScrn, "fb") == NULL) {
RETURN;
}
if (!dPtr->swCursor) {
if (!xf86LoadSubModule(pScrn, "ramdac"))
RETURN;
}
/* We have no contiguous physical fb in physical memory */
pScrn->memPhysBase = 0;
pScrn->fbOffset = 0;
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return TRUE;
}
#undef RETURN
/* Mandatory */
static Bool
DUMMYEnterVT(int scrnIndex, int flags)
{
ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
/* Should we re-save the text mode on each VT enter? */
if(!dummyModeInit(pScrn, pScrn->currentMode))
return FALSE;
DUMMYAdjustFrame(pScrn->scrnIndex, pScrn->frameX0, pScrn->frameY0, 0);
return TRUE;
}
/* Mandatory */
static void
DUMMYLeaveVT(int scrnIndex, int flags)
{
ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
dummyRestore(pScrn, TRUE);
}
static void
DUMMYLoadPalette(
ScrnInfoPtr pScrn,
int numColors,
int *indices,
LOCO *colors,
VisualPtr pVisual
){
int i, index, shift, Gshift;
DUMMYPtr dPtr = DUMMYPTR(pScrn);
switch(pScrn->depth) {
case 15:
shift = Gshift = 1;
break;
case 16:
shift = 0;
Gshift = 0;
break;
default:
shift = Gshift = 0;
break;
}
for(i = 0; i < numColors; i++) {
index = indices[i];
dPtr->colors[index].red = colors[index].red << shift;
dPtr->colors[index].green = colors[index].green << Gshift;
dPtr->colors[index].blue = colors[index].blue << shift;
}
}
static ScrnInfoPtr DUMMYScrn; /* static-globalize it */
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/* Mandatory */
static Bool
DUMMYScreenInit(int scrnIndex, ScreenPtr pScreen, int argc, char **argv)
{
ScrnInfoPtr pScrn;
DUMMYPtr dPtr;
int ret;
VisualPtr visual;
/*
* we need to get the ScrnInfoRec for this screen, so let's allocate
* one first thing
*/
pScrn = xf86Screens[pScreen->myNum];
dPtr = DUMMYPTR(pScrn);
DUMMYScrn = pScrn;
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if (!(dPtr->FBBase = xalloc(pScrn->videoRam * 1024)))
return FALSE;
/*
* next we save the current state and setup the first mode
*/
dummySave(pScrn);
if (!dummyModeInit(pScrn,pScrn->currentMode))
return FALSE;
DUMMYAdjustFrame(scrnIndex, pScrn->frameX0, pScrn->frameY0, 0);
/*
* Reset visual list.
*/
miClearVisualTypes();
/* Setup the visuals we support. */
if (!miSetVisualTypes(pScrn->depth,
miGetDefaultVisualMask(pScrn->depth),
pScrn->rgbBits, pScrn->defaultVisual))
return FALSE;
if (!miSetPixmapDepths ()) return FALSE;
/*
* Call the framebuffer layer's ScreenInit function, and fill in other
* pScreen fields.
*/
ret = fbScreenInit(pScreen, dPtr->FBBase,
pScrn->virtualX, pScrn->virtualY,
pScrn->xDpi, pScrn->yDpi,
pScrn->displayWidth, pScrn->bitsPerPixel);
if (!ret)
return FALSE;
if (pScrn->depth > 8) {
/* Fixup RGB ordering */
visual = pScreen->visuals + pScreen->numVisuals;
while (--visual >= pScreen->visuals) {
if ((visual->class | DynamicClass) == DirectColor) {
visual->offsetRed = pScrn->offset.red;
visual->offsetGreen = pScrn->offset.green;
visual->offsetBlue = pScrn->offset.blue;
visual->redMask = pScrn->mask.red;
visual->greenMask = pScrn->mask.green;
visual->blueMask = pScrn->mask.blue;
}
}
}
/* must be after RGB ordering fixed */
fbPictureInit(pScreen, 0, 0);
xf86SetBlackWhitePixels(pScreen);
DUMMYDGAInit(pScreen);
if (dPtr->swCursor)
xf86DrvMsg(scrnIndex, X_CONFIG, "Using Software Cursor.\n");
{
BoxRec AvailFBArea;
int lines = pScrn->videoRam * 1024 /
(pScrn->displayWidth * (pScrn->bitsPerPixel >> 3));
AvailFBArea.x1 = 0;
AvailFBArea.y1 = 0;
AvailFBArea.x2 = pScrn->displayWidth;
AvailFBArea.y2 = lines;
xf86InitFBManager(pScreen, &AvailFBArea);
xf86DrvMsg(pScrn->scrnIndex, X_INFO,
"Using %i scanlines of offscreen memory \n"
, lines - pScrn->virtualY);
}
miInitializeBackingStore(pScreen);
xf86SetBackingStore(pScreen);
xf86SetSilkenMouse(pScreen);
/* Initialise cursor functions */
miDCInitialize (pScreen, xf86GetPointerScreenFuncs());
if (!dPtr->swCursor) {
/* HW cursor functions */
if (!DUMMYCursorInit(pScreen)) {
xf86DrvMsg(scrnIndex, X_ERROR,
"Hardware cursor initialization failed\n");
return FALSE;
}
}
/* Initialise default colourmap */
if(!miCreateDefColormap(pScreen))
return FALSE;
if (!xf86HandleColormaps(pScreen, 256, pScrn->rgbBits,
DUMMYLoadPalette, NULL,
CMAP_PALETTED_TRUECOLOR
| CMAP_RELOAD_ON_MODE_SWITCH))
return FALSE;
/* DUMMYInitVideo(pScreen); */
pScreen->SaveScreen = DUMMYSaveScreen;
/* Wrap the current CloseScreen function */
dPtr->CloseScreen = pScreen->CloseScreen;
pScreen->CloseScreen = DUMMYCloseScreen;
/* Wrap the current CreateWindow function */
dPtr->CreateWindow = pScreen->CreateWindow;
pScreen->CreateWindow = DUMMYCreateWindow;
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/* Report any unused options (only for the first generation) */
if (serverGeneration == 1) {
xf86ShowUnusedOptions(pScrn->scrnIndex, pScrn->options);
}
return TRUE;
}
/* Mandatory */
Bool
DUMMYSwitchMode(int scrnIndex, DisplayModePtr mode, int flags)
{
return dummyModeInit(xf86Screens[scrnIndex], mode);
}
/* Mandatory */
void
DUMMYAdjustFrame(int scrnIndex, int x, int y, int flags)
{
ScrnInfoPtr pScrn;
int Base;
pScrn = xf86Screens[scrnIndex];
Base = (y * pScrn->displayWidth + x) >> 2;
/* Scale Base by the number of bytes per pixel. */
switch (pScrn->depth) {
case 8 :
break;
case 15 :
case 16 :
Base *= 2;
break;
case 24 :
Base *= 3;
break;
default :
break;
}
}
/* Mandatory */
static Bool
DUMMYCloseScreen(int scrnIndex, ScreenPtr pScreen)
{
ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
DUMMYPtr dPtr = DUMMYPTR(pScrn);
if(pScrn->vtSema){
dummyRestore(pScrn, TRUE);
xfree(dPtr->FBBase);
}
if (dPtr->CursorInfo)
xf86DestroyCursorInfoRec(dPtr->CursorInfo);
pScrn->vtSema = FALSE;
pScreen->CloseScreen = dPtr->CloseScreen;
return (*pScreen->CloseScreen)(scrnIndex, pScreen);
}
/* Optional */
static void
DUMMYFreeScreen(int scrnIndex, int flags)
{
DUMMYFreeRec(xf86Screens[scrnIndex]);
}
static Bool
DUMMYSaveScreen(ScreenPtr pScreen, int mode)
{
ScrnInfoPtr pScrn = NULL;
DUMMYPtr dPtr;
if (pScreen != NULL) {
pScrn = xf86Screens[pScreen->myNum];
dPtr = DUMMYPTR(pScrn);
dPtr->screenSaver = xf86IsUnblank(mode);
}
return TRUE;
}
/* Optional */
static ModeStatus
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DUMMYValidMode(int scrnIndex, DisplayModePtr mode, Bool verbose, int flags)
{
return(MODE_OK);
}
static void
dummySave(ScrnInfoPtr pScrn)
{
}
static void
dummyRestore(ScrnInfoPtr pScrn, Bool restoreText)
{
}
static Bool
dummyModeInit(ScrnInfoPtr pScrn, DisplayModePtr mode)
{
dummyRestore(pScrn, FALSE);
return(TRUE);
}
Atom VFB_PROP = 0;
#define VFB_PROP_NAME "VFB_IDENT"
static Bool
DUMMYCreateWindow(WindowPtr pWin)
{
ScreenPtr pScreen = pWin->drawable.pScreen;
DUMMYPtr dPtr = DUMMYPTR(DUMMYScrn);
WindowPtr pWinRoot;
int ret;
pScreen->CreateWindow = dPtr->CreateWindow;
ret = pScreen->CreateWindow(pWin);
dPtr->CreateWindow = pScreen->CreateWindow;
pScreen->CreateWindow = DUMMYCreateWindow;
if(ret != TRUE)
return(ret);
if(dPtr->prop == FALSE) {
pWinRoot = WindowTable[DUMMYScrn->pScreen->myNum];
if (! ValidAtom(VFB_PROP))
VFB_PROP = MakeAtom(VFB_PROP_NAME, strlen(VFB_PROP_NAME), 1);
ret = ChangeWindowProperty(pWinRoot, VFB_PROP, XA_STRING,
8, PropModeReplace, (int)4, (pointer)"TRUE", FALSE);
if( ret != Success)
ErrorF("Could not set VFB root window property");
dPtr->prop = TRUE;
return TRUE;
}
return TRUE;
}
#ifndef HW_SKIP_CONSOLE
#define HW_SKIP_CONSOLE 4
#endif
static Bool
dummyDriverFunc(ScrnInfoPtr pScrn, xorgDriverFuncOp op, pointer ptr)
{
CARD32 *flag;
switch (op) {
case GET_REQUIRED_HW_INTERFACES:
flag = (CARD32*)ptr;
(*flag) = HW_SKIP_CONSOLE;
return TRUE;
default:
return FALSE;
}
}