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xserver-multidpi/hw/xfree86/common/xf86Helper.c
Alan Coopersmith 33d6e6743d xf86RegisterRootWindowProperty is confused about xnfcalloc 
It will never return NULL, so don't try to handle a NULL condition,
since that just confuses programmers and static analyzers.

It uses calloc, so all the allocated memory is cleared, so there's
no point looping over the memory to manually initialize it NULL.

And just because it's annoying, it doesn't need to be the only
place in this file to do if (NULL==...) instead of if (... == NULL).

Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
2011-12-10 11:51:03 -08:00

1826 lines
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/*
* Copyright (c) 1997-2003 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).
*/
/*
* Authors: Dirk Hohndel <hohndel@XFree86.Org>
* David Dawes <dawes@XFree86.Org>
* ... and others
*
* This file includes the helper functions that the server provides for
* different drivers.
*/
#ifdef HAVE_XORG_CONFIG_H
#include <xorg-config.h>
#endif
#include <X11/X.h>
#include "os.h"
#include "servermd.h"
#include "pixmapstr.h"
#include "windowstr.h"
#include "propertyst.h"
#include "gcstruct.h"
#include "loaderProcs.h"
#include "xf86.h"
#include "xf86Priv.h"
#include "xf86_OSlib.h"
#include "micmap.h"
#include "xf86DDC.h"
#include "xf86Xinput.h"
#include "xf86InPriv.h"
#include "mivalidate.h"
#include "xf86Crtc.h"
/* For xf86GetClocks */
#if defined(CSRG_BASED) || defined(__GNU__)
#define HAS_SETPRIORITY
#include <sys/resource.h>
#endif
static int xf86ScrnInfoPrivateCount = 0;
/* Add a pointer to a new DriverRec to xf86DriverList */
void
xf86AddDriver(DriverPtr driver, pointer module, int flags)
{
/* Don't add null entries */
if (!driver)
return;
if (xf86DriverList == NULL)
xf86NumDrivers = 0;
xf86NumDrivers++;
xf86DriverList = xnfrealloc(xf86DriverList,
xf86NumDrivers * sizeof(DriverPtr));
xf86DriverList[xf86NumDrivers - 1] = xnfalloc(sizeof(DriverRec));
if (flags & HaveDriverFuncs)
*xf86DriverList[xf86NumDrivers - 1] = *driver;
else {
(void) memset( xf86DriverList[xf86NumDrivers - 1], 0,
sizeof( DriverRec ) );
(void) memcpy( xf86DriverList[xf86NumDrivers - 1], driver,
sizeof(DriverRec1));
}
xf86DriverList[xf86NumDrivers - 1]->module = module;
xf86DriverList[xf86NumDrivers - 1]->refCount = 0;
}
void
xf86DeleteDriver(int drvIndex)
{
if (xf86DriverList[drvIndex]
&& (!xf86DriverHasEntities(xf86DriverList[drvIndex]))) {
if (xf86DriverList[drvIndex]->module)
UnloadModule(xf86DriverList[drvIndex]->module);
free(xf86DriverList[drvIndex]);
xf86DriverList[drvIndex] = NULL;
}
}
/* Add a pointer to a new InputDriverRec to xf86InputDriverList */
void
xf86AddInputDriver(InputDriverPtr driver, pointer module, int flags)
{
/* Don't add null entries */
if (!driver)
return;
if (xf86InputDriverList == NULL)
xf86NumInputDrivers = 0;
xf86NumInputDrivers++;
xf86InputDriverList = xnfrealloc(xf86InputDriverList,
xf86NumInputDrivers * sizeof(InputDriverPtr));
xf86InputDriverList[xf86NumInputDrivers - 1] =
xnfalloc(sizeof(InputDriverRec));
*xf86InputDriverList[xf86NumInputDrivers - 1] = *driver;
xf86InputDriverList[xf86NumInputDrivers - 1]->module = module;
}
void
xf86DeleteInputDriver(int drvIndex)
{
if (xf86InputDriverList[drvIndex] && xf86InputDriverList[drvIndex]->module)
UnloadModule(xf86InputDriverList[drvIndex]->module);
free(xf86InputDriverList[drvIndex]);
xf86InputDriverList[drvIndex] = NULL;
}
InputDriverPtr
xf86LookupInputDriver(const char *name)
{
int i;
for (i = 0; i < xf86NumInputDrivers; i++) {
if (xf86InputDriverList[i] && xf86InputDriverList[i]->driverName &&
xf86NameCmp(name, xf86InputDriverList[i]->driverName) == 0)
return xf86InputDriverList[i];
}
return NULL;
}
InputInfoPtr
xf86LookupInput(const char *name)
{
InputInfoPtr p;
for (p = xf86InputDevs; p != NULL; p = p->next) {
if (strcmp(name, p->name) == 0)
return p;
}
return NULL;
}
/* Allocate a new ScrnInfoRec in xf86Screens */
ScrnInfoPtr
xf86AllocateScreen(DriverPtr drv, int flags)
{
int i;
if (xf86Screens == NULL)
xf86NumScreens = 0;
i = xf86NumScreens++;
xf86Screens = xnfrealloc(xf86Screens, xf86NumScreens * sizeof(ScrnInfoPtr));
xf86Screens[i] = xnfcalloc(sizeof(ScrnInfoRec), 1);
xf86Screens[i]->scrnIndex = i; /* Changes when a screen is removed */
xf86Screens[i]->origIndex = i; /* This never changes */
xf86Screens[i]->privates = xnfcalloc(sizeof(DevUnion),
xf86ScrnInfoPrivateCount);
/*
* EnableDisableFBAccess now gets initialized in InitOutput()
* xf86Screens[i]->EnableDisableFBAccess = xf86EnableDisableFBAccess;
*/
xf86Screens[i]->drv = drv;
drv->refCount++;
xf86Screens[i]->module = DuplicateModule(drv->module, NULL);
xf86Screens[i]->DriverFunc = drv->driverFunc;
return xf86Screens[i];
}
/*
* Remove an entry from xf86Screens. Ideally it should free all allocated
* data. To do this properly may require a driver hook.
*/
void
xf86DeleteScreen(int scrnIndex, int flags)
{
ScrnInfoPtr pScrn;
int i;
/* First check if the screen is valid */
if (xf86NumScreens == 0 || xf86Screens == NULL)
return;
if (scrnIndex > xf86NumScreens - 1)
return;
if (!(pScrn = xf86Screens[scrnIndex]))
return;
/* If a FreeScreen function is defined, call it here */
if (pScrn->FreeScreen != NULL)
pScrn->FreeScreen(scrnIndex, 0);
while (pScrn->modes)
xf86DeleteMode(&pScrn->modes, pScrn->modes);
while (pScrn->modePool)
xf86DeleteMode(&pScrn->modePool, pScrn->modePool);
xf86OptionListFree(pScrn->options);
if (pScrn->module)
UnloadModule(pScrn->module);
if (pScrn->drv)
pScrn->drv->refCount--;
free(pScrn->privates);
xf86ClearEntityListForScreen(scrnIndex);
free(pScrn);
/* Move the other entries down, updating their scrnIndex fields */
xf86NumScreens--;
for (i = scrnIndex; i < xf86NumScreens; i++) {
xf86Screens[i] = xf86Screens[i + 1];
xf86Screens[i]->scrnIndex = i;
/* Also need to take care of the screen layout settings */
}
}
/*
* Allocate a private in ScrnInfoRec.
*/
int
xf86AllocateScrnInfoPrivateIndex(void)
{
int idx, i;
ScrnInfoPtr pScr;
DevUnion *nprivs;
idx = xf86ScrnInfoPrivateCount++;
for (i = 0; i < xf86NumScreens; i++) {
pScr = xf86Screens[i];
nprivs = xnfrealloc(pScr->privates,
xf86ScrnInfoPrivateCount * sizeof(DevUnion));
/* Zero the new private */
memset(&nprivs[idx], 0, sizeof(DevUnion));
pScr->privates = nprivs;
}
return idx;
}
Bool
xf86AddPixFormat(ScrnInfoPtr pScrn, int depth, int bpp, int pad)
{
int i;
if (pScrn->numFormats >= MAXFORMATS)
return FALSE;
if (bpp <= 0) {
if (depth == 1)
bpp = 1;
else if (depth <= 8)
bpp = 8;
else if (depth <= 16)
bpp = 16;
else if (depth <= 32)
bpp = 32;
else
return FALSE;
}
if (pad <= 0)
pad = BITMAP_SCANLINE_PAD;
i = pScrn->numFormats++;
pScrn->formats[i].depth = depth;
pScrn->formats[i].bitsPerPixel = bpp;
pScrn->formats[i].scanlinePad = pad;
return TRUE;
}
/*
* Set the depth we are using based on (in the following order of preference):
* - values given on the command line
* - values given in the config file
* - values provided by the driver
* - an overall default when nothing else is given
*
* Also find a Display subsection matching the depth/bpp found.
*
* Sets the following ScrnInfoRec fields:
* bitsPerPixel, pixmap24, depth, display, imageByteOrder,
* bitmapScanlinePad, bitmapScanlineUnit, bitmapBitOrder, numFormats,
* formats, fbFormat.
*/
/* Can the screen handle 24 bpp pixmaps */
#define DO_PIX24(f) ((f & Support24bppFb) || \
((f & Support32bppFb) && (f & SupportConvert24to32)))
/* Can the screen handle 32 bpp pixmaps */
#define DO_PIX32(f) ((f & Support32bppFb) || \
((f & Support24bppFb) && (f & SupportConvert32to24)))
/* Does the screen prefer 32bpp fb for 24bpp pixmaps */
#define CHOOSE32FOR24(f) ((f & Support32bppFb) && (f & SupportConvert24to32) \
&& (f & PreferConvert24to32))
/* Does the screen prefer 24bpp fb for 32bpp pixmaps */
#define CHOOSE24FOR32(f) ((f & Support24bppFb) && (f & SupportConvert32to24) \
&& (f & PreferConvert32to24))
/* Can the screen handle 32bpp pixmaps for 24bpp fb */
#define DO_PIX32FOR24(f) ((f & Support24bppFb) && (f & SupportConvert32to24))
/* Can the screen handle 24bpp pixmaps for 32bpp fb */
#define DO_PIX24FOR32(f) ((f & Support32bppFb) && (f & SupportConvert24to32))
#ifndef GLOBAL_DEFAULT_DEPTH
#define GLOBAL_DEFAULT_DEPTH 24
#endif
Bool
xf86SetDepthBpp(ScrnInfoPtr scrp, int depth, int dummy, int fbbpp,
int depth24flags)
{
int i;
DispPtr disp;
Pix24Flags pix24 = xf86Info.pixmap24;
Bool nomatch = FALSE;
scrp->bitsPerPixel = -1;
scrp->depth = -1;
scrp->pixmap24 = Pix24DontCare;
scrp->bitsPerPixelFrom = X_DEFAULT;
scrp->depthFrom = X_DEFAULT;
if (xf86FbBpp > 0) {
scrp->bitsPerPixel = xf86FbBpp;
scrp->bitsPerPixelFrom = X_CMDLINE;
}
if (xf86Depth > 0) {
scrp->depth = xf86Depth;
scrp->depthFrom = X_CMDLINE;
}
if (xf86FbBpp < 0 && xf86Depth < 0) {
if (scrp->confScreen->defaultfbbpp > 0) {
scrp->bitsPerPixel = scrp->confScreen->defaultfbbpp;
scrp->bitsPerPixelFrom = X_CONFIG;
}
if (scrp->confScreen->defaultdepth > 0) {
scrp->depth = scrp->confScreen->defaultdepth;
scrp->depthFrom = X_CONFIG;
}
if (scrp->confScreen->defaultfbbpp <= 0 &&
scrp->confScreen->defaultdepth <= 0) {
/*
* Check for DefaultDepth and DefaultFbBpp options in the
* Device sections.
*/
int i;
GDevPtr device;
Bool found = FALSE;
for (i = 0; i < scrp->numEntities; i++) {
device = xf86GetDevFromEntity(scrp->entityList[i],
scrp->entityInstanceList[i]);
if (device && device->options) {
if (xf86FindOption(device->options, "DefaultDepth")) {
scrp->depth = xf86SetIntOption(device->options,
"DefaultDepth", -1);
scrp->depthFrom = X_CONFIG;
found = TRUE;
}
if (xf86FindOption(device->options, "DefaultFbBpp")) {
scrp->bitsPerPixel = xf86SetIntOption(device->options,
"DefaultFbBpp",
-1);
scrp->bitsPerPixelFrom = X_CONFIG;
found = TRUE;
}
}
if (found)
break;
}
}
}
/* If none of these is set, pick a default */
if (scrp->bitsPerPixel < 0 && scrp->depth < 0) {
if (fbbpp > 0 || depth > 0) {
if (fbbpp > 0)
scrp->bitsPerPixel = fbbpp;
if (depth > 0)
scrp->depth = depth;
} else {
scrp->depth = GLOBAL_DEFAULT_DEPTH;
}
}
/* If any are not given, determine a default for the others */
if (scrp->bitsPerPixel < 0) {
/* The depth must be set */
if (scrp->depth > -1) {
if (scrp->depth == 1)
scrp->bitsPerPixel = 1;
else if (scrp->depth <= 4)
scrp->bitsPerPixel = 4;
else if (scrp->depth <= 8)
scrp->bitsPerPixel = 8;
else if (scrp->depth <= 16)
scrp->bitsPerPixel = 16;
else if (scrp->depth <= 24) {
/*
* Figure out if a choice is possible based on the depth24
* and pix24 flags.
*/
/* Check pix24 first */
if (pix24 != Pix24DontCare) {
if (pix24 == Pix24Use32) {
if (DO_PIX32(depth24flags)) {
if (CHOOSE24FOR32(depth24flags))
scrp->bitsPerPixel = 24;
else
scrp->bitsPerPixel = 32;
} else {
nomatch = TRUE;
}
} else if (pix24 == Pix24Use24) {
if (DO_PIX24(depth24flags)) {
if (CHOOSE32FOR24(depth24flags))
scrp->bitsPerPixel = 32;
else
scrp->bitsPerPixel = 24;
} else {
nomatch = TRUE;
}
}
} else {
if (DO_PIX32(depth24flags)) {
if (CHOOSE24FOR32(depth24flags))
scrp->bitsPerPixel = 24;
else
scrp->bitsPerPixel = 32;
} else if (DO_PIX24(depth24flags)) {
if (CHOOSE32FOR24(depth24flags))
scrp->bitsPerPixel = 32;
else
scrp->bitsPerPixel = 24;
}
}
} else if (scrp->depth <= 32)
scrp->bitsPerPixel = 32;
else {
xf86DrvMsg(scrp->scrnIndex, X_ERROR,
"Specified depth (%d) is greater than 32\n",
scrp->depth);
return FALSE;
}
} else {
xf86DrvMsg(scrp->scrnIndex, X_ERROR,
"xf86SetDepthBpp: internal error: depth and fbbpp"
" are both not set\n");
return FALSE;
}
if (scrp->bitsPerPixel < 0) {
if (nomatch)
xf86DrvMsg(scrp->scrnIndex, X_ERROR,
"Driver can't support depth 24 pixmap format (%d)\n",
PIX24TOBPP(pix24));
else if ((depth24flags & (Support24bppFb | Support32bppFb)) ==
NoDepth24Support)
xf86DrvMsg(scrp->scrnIndex, X_ERROR,
"Driver can't support depth 24\n");
else
xf86DrvMsg(scrp->scrnIndex, X_ERROR,
"Can't find fbbpp for depth 24\n");
return FALSE;
}
scrp->bitsPerPixelFrom = X_PROBED;
}
if (scrp->depth <= 0) {
/* bitsPerPixel is already set */
switch (scrp->bitsPerPixel) {
case 32:
scrp->depth = 24;
break;
default:
/* 1, 4, 8, 16 and 24 */
scrp->depth = scrp->bitsPerPixel;
break;
}
scrp->depthFrom = X_PROBED;
}
/* Sanity checks */
if (scrp->depth < 1 || scrp->depth > 32) {
xf86DrvMsg(scrp->scrnIndex, X_ERROR,
"Specified depth (%d) is not in the range 1-32\n",
scrp->depth);
return FALSE;
}
switch (scrp->bitsPerPixel) {
case 1:
case 4:
case 8:
case 16:
case 24:
case 32:
break;
default:
xf86DrvMsg(scrp->scrnIndex, X_ERROR,
"Specified fbbpp (%d) is not a permitted value\n",
scrp->bitsPerPixel);
return FALSE;
}
if (scrp->depth > scrp->bitsPerPixel) {
xf86DrvMsg(scrp->scrnIndex, X_ERROR,
"Specified depth (%d) is greater than the fbbpp (%d)\n",
scrp->depth, scrp->bitsPerPixel);
return FALSE;
}
/* set scrp->pixmap24 if the driver isn't flexible */
if (scrp->bitsPerPixel == 24 && !DO_PIX32FOR24(depth24flags)) {
scrp->pixmap24 = Pix24Use24;
}
if (scrp->bitsPerPixel == 32 && !DO_PIX24FOR32(depth24flags)) {
scrp->pixmap24 = Pix24Use32;
}
/*
* Find the Display subsection matching the depth/fbbpp and initialise
* scrp->display with it.
*/
for (i = 0, disp = scrp->confScreen->displays;
i < scrp->confScreen->numdisplays; i++, disp++) {
if ((disp->depth == scrp->depth && disp->fbbpp == scrp->bitsPerPixel)
|| (disp->depth == scrp->depth && disp->fbbpp <= 0)
|| (disp->fbbpp == scrp->bitsPerPixel && disp->depth <= 0)) {
scrp->display = disp;
break;
}
}
/*
* If an exact match can't be found, see if there is one with no
* depth or fbbpp specified.
*/
if (i == scrp->confScreen->numdisplays) {
for (i = 0, disp = scrp->confScreen->displays;
i < scrp->confScreen->numdisplays; i++, disp++) {
if (disp->depth <= 0 && disp->fbbpp <= 0) {
scrp->display = disp;
break;
}
}
}
/*
* If all else fails, create a default one.
*/
if (i == scrp->confScreen->numdisplays) {
scrp->confScreen->numdisplays++;
scrp->confScreen->displays =
xnfrealloc(scrp->confScreen->displays,
scrp->confScreen->numdisplays * sizeof(DispRec));
xf86DrvMsg(scrp->scrnIndex, X_INFO,
"Creating default Display subsection in Screen section\n"
"\t\"%s\" for depth/fbbpp %d/%d\n",
scrp->confScreen->id, scrp->depth, scrp->bitsPerPixel);
memset(&scrp->confScreen->displays[i], 0, sizeof(DispRec));
scrp->confScreen->displays[i].blackColour.red = -1;
scrp->confScreen->displays[i].blackColour.green = -1;
scrp->confScreen->displays[i].blackColour.blue = -1;
scrp->confScreen->displays[i].whiteColour.red = -1;
scrp->confScreen->displays[i].whiteColour.green = -1;
scrp->confScreen->displays[i].whiteColour.blue = -1;
scrp->confScreen->displays[i].defaultVisual = -1;
scrp->confScreen->displays[i].modes = xnfalloc(sizeof(char *));
scrp->confScreen->displays[i].modes[0] = NULL;
scrp->confScreen->displays[i].depth = depth;
scrp->confScreen->displays[i].fbbpp = fbbpp;
scrp->display = &scrp->confScreen->displays[i];
}
/*
* Setup defaults for the display-wide attributes the framebuffer will
* need. These defaults should eventually be set globally, and not
* dependent on the screens.
*/
scrp->imageByteOrder = IMAGE_BYTE_ORDER;
scrp->bitmapScanlinePad = BITMAP_SCANLINE_PAD;
if (scrp->depth < 8) {
/* Planar modes need these settings */
scrp->bitmapScanlineUnit = 8;
scrp->bitmapBitOrder = MSBFirst;
} else {
scrp->bitmapScanlineUnit = BITMAP_SCANLINE_UNIT;
scrp->bitmapBitOrder = BITMAP_BIT_ORDER;
}
/*
* If an unusual depth is required, add it to scrp->formats. The formats
* for the common depths are handled globally in InitOutput
*/
switch (scrp->depth) {
case 1:
case 4:
case 8:
case 15:
case 16:
case 24:
/* Common depths. Nothing to do for them */
break;
default:
if (!xf86AddPixFormat(scrp, scrp->depth, 0, 0)) {
xf86DrvMsg(scrp->scrnIndex, X_ERROR,
"Can't add pixmap format for depth %d\n", scrp->depth);
return FALSE;
}
}
/* Initialise the framebuffer format for this screen */
scrp->fbFormat.depth = scrp->depth;
scrp->fbFormat.bitsPerPixel = scrp->bitsPerPixel;
scrp->fbFormat.scanlinePad = BITMAP_SCANLINE_PAD;
return TRUE;
}
/*
* Print out the selected depth and bpp.
*/
void
xf86PrintDepthBpp(ScrnInfoPtr scrp)
{
xf86DrvMsg(scrp->scrnIndex, scrp->depthFrom, "Depth %d, ", scrp->depth);
xf86Msg(scrp->bitsPerPixelFrom, "framebuffer bpp %d\n", scrp->bitsPerPixel);
}
/*
* xf86SetWeight sets scrp->weight, scrp->mask, scrp->offset, and for depths
* greater than MAX_PSEUDO_DEPTH also scrp->rgbBits.
*/
Bool
xf86SetWeight(ScrnInfoPtr scrp, rgb weight, rgb mask)
{
MessageType weightFrom = X_DEFAULT;
scrp->weight.red = 0;
scrp->weight.green = 0;
scrp->weight.blue = 0;
if (xf86Weight.red > 0 && xf86Weight.green > 0 && xf86Weight.blue > 0) {
scrp->weight = xf86Weight;
weightFrom = X_CMDLINE;
} else if (scrp->display->weight.red > 0 && scrp->display->weight.green > 0
&& scrp->display->weight.blue > 0) {
scrp->weight = scrp->display->weight;
weightFrom = X_CONFIG;
} else if (weight.red > 0 && weight.green > 0 && weight.blue > 0) {
scrp->weight = weight;
} else {
switch (scrp->depth) {
case 1:
case 4:
case 8:
scrp->weight.red = scrp->weight.green =
scrp->weight.blue = scrp->rgbBits;
break;
case 15:
scrp->weight.red = scrp->weight.green = scrp->weight.blue = 5;
break;
case 16:
scrp->weight.red = scrp->weight.blue = 5;
scrp->weight.green = 6;
break;
case 18:
scrp->weight.red = scrp->weight.green = scrp->weight.blue = 6;
break;
case 24:
scrp->weight.red = scrp->weight.green = scrp->weight.blue = 8;
break;
case 30:
scrp->weight.red = scrp->weight.green = scrp->weight.blue = 10;
break;
}
}
if (scrp->weight.red)
xf86DrvMsg(scrp->scrnIndex, weightFrom, "RGB weight %d%d%d\n",
(int)scrp->weight.red, (int)scrp->weight.green,
(int)scrp->weight.blue);
if (scrp->depth > MAX_PSEUDO_DEPTH &&
(scrp->depth != scrp->weight.red + scrp->weight.green +
scrp->weight.blue)) {
xf86DrvMsg(scrp->scrnIndex, X_ERROR,
"Weight given (%d%d%d) is inconsistent with the "
"depth (%d)\n",
(int)scrp->weight.red, (int)scrp->weight.green,
(int)scrp->weight.blue, scrp->depth);
return FALSE;
}
if (scrp->depth > MAX_PSEUDO_DEPTH && scrp->weight.red) {
/*
* XXX Does this even mean anything for TrueColor visuals?
* If not, we shouldn't even be setting it here. However, this
* matches the behaviour of 3.x versions of XFree86.
*/
scrp->rgbBits = scrp->weight.red;
if (scrp->weight.green > scrp->rgbBits)
scrp->rgbBits = scrp->weight.green;
if (scrp->weight.blue > scrp->rgbBits)
scrp->rgbBits = scrp->weight.blue;
}
/* Set the mask and offsets */
if (mask.red == 0 || mask.green == 0 || mask.blue == 0) {
/* Default to a setting common to PC hardware */
scrp->offset.red = scrp->weight.green + scrp->weight.blue;
scrp->offset.green = scrp->weight.blue;
scrp->offset.blue = 0;
scrp->mask.red = ((1 << scrp->weight.red) - 1) << scrp->offset.red;
scrp->mask.green = ((1 << scrp->weight.green) - 1)
<< scrp->offset.green;
scrp->mask.blue = (1 << scrp->weight.blue) - 1;
} else {
/* Initialise to the values passed */
scrp->mask.red = mask.red;
scrp->mask.green = mask.green;
scrp->mask.blue = mask.blue;
scrp->offset.red = ffs(mask.red);
scrp->offset.green = ffs(mask.green);
scrp->offset.blue = ffs(mask.blue);
}
return TRUE;
}
Bool
xf86SetDefaultVisual(ScrnInfoPtr scrp, int visual)
{
MessageType visualFrom = X_DEFAULT;
if (defaultColorVisualClass >= 0) {
scrp->defaultVisual = defaultColorVisualClass;
visualFrom = X_CMDLINE;
} else if (scrp->display->defaultVisual >= 0) {
scrp->defaultVisual = scrp->display->defaultVisual;
visualFrom = X_CONFIG;
} else if (visual >= 0) {
scrp->defaultVisual = visual;
} else {
if (scrp->depth == 1)
scrp->defaultVisual = StaticGray;
else if (scrp->depth == 4)
scrp->defaultVisual = StaticColor;
else if (scrp->depth <= MAX_PSEUDO_DEPTH)
scrp->defaultVisual = PseudoColor;
else
scrp->defaultVisual = TrueColor;
}
switch (scrp->defaultVisual) {
case StaticGray:
case GrayScale:
case StaticColor:
case PseudoColor:
case TrueColor:
case DirectColor:
xf86DrvMsg(scrp->scrnIndex, visualFrom, "Default visual is %s\n",
xf86VisualNames[scrp->defaultVisual]);
return TRUE;
default:
xf86DrvMsg(scrp->scrnIndex, X_ERROR,
"Invalid default visual class (%d)\n", scrp->defaultVisual);
return FALSE;
}
}
#define TEST_GAMMA(g) \
(g).red > GAMMA_ZERO || (g).green > GAMMA_ZERO || (g).blue > GAMMA_ZERO
#define SET_GAMMA(g) \
(g) > GAMMA_ZERO ? (g) : 1.0
Bool
xf86SetGamma(ScrnInfoPtr scrp, Gamma gamma)
{
MessageType from = X_DEFAULT;
#if 0
xf86MonPtr DDC = (xf86MonPtr)(scrp->monitor->DDC);
#endif
if (TEST_GAMMA(xf86Gamma)) {
from = X_CMDLINE;
scrp->gamma.red = SET_GAMMA(xf86Gamma.red);
scrp->gamma.green = SET_GAMMA(xf86Gamma.green);
scrp->gamma.blue = SET_GAMMA(xf86Gamma.blue);
} else if (TEST_GAMMA(scrp->monitor->gamma)) {
from = X_CONFIG;
scrp->gamma.red = SET_GAMMA(scrp->monitor->gamma.red);
scrp->gamma.green = SET_GAMMA(scrp->monitor->gamma.green);
scrp->gamma.blue = SET_GAMMA(scrp->monitor->gamma.blue);
#if 0
} else if ( DDC && DDC->features.gamma > GAMMA_ZERO ) {
from = X_PROBED;
scrp->gamma.red = SET_GAMMA(DDC->features.gamma);
scrp->gamma.green = SET_GAMMA(DDC->features.gamma);
scrp->gamma.blue = SET_GAMMA(DDC->features.gamma);
/* EDID structure version 2 gives optional seperate red, green & blue gamma values
* in bytes 0x57-0x59 */
#endif
} else if (TEST_GAMMA(gamma)) {
scrp->gamma.red = SET_GAMMA(gamma.red);
scrp->gamma.green = SET_GAMMA(gamma.green);
scrp->gamma.blue = SET_GAMMA(gamma.blue);
} else {
scrp->gamma.red = 1.0;
scrp->gamma.green = 1.0;
scrp->gamma.blue = 1.0;
}
/* Pretend we succeeded if we support better a gamma system.
* This avoids a confusing message.
*/
if (xf86_crtc_supports_gamma(scrp))
return TRUE;
xf86DrvMsg(scrp->scrnIndex, from,
"Using gamma correction (%.1f, %.1f, %.1f)\n",
scrp->gamma.red, scrp->gamma.green, scrp->gamma.blue);
return TRUE;
}
#undef TEST_GAMMA
#undef SET_GAMMA
/*
* Set the DPI from the command line option. XXX should allow it to be
* calculated from the widthmm/heightmm values.
*/
#undef MMPERINCH
#define MMPERINCH 25.4
void
xf86SetDpi(ScrnInfoPtr pScrn, int x, int y)
{
MessageType from = X_DEFAULT;
xf86MonPtr DDC = (xf86MonPtr)(pScrn->monitor->DDC);
int ddcWidthmm, ddcHeightmm;
int widthErr, heightErr;
/* XXX Maybe there is no need for widthmm/heightmm in ScrnInfoRec */
pScrn->widthmm = pScrn->monitor->widthmm;
pScrn->heightmm = pScrn->monitor->heightmm;
if (DDC && (DDC->features.hsize > 0 && DDC->features.vsize > 0) ) {
/* DDC gives display size in mm for individual modes,
* but cm for monitor
*/
ddcWidthmm = DDC->features.hsize * 10; /* 10mm in 1cm */
ddcHeightmm = DDC->features.vsize * 10; /* 10mm in 1cm */
} else {
ddcWidthmm = ddcHeightmm = 0;
}
if (monitorResolution > 0) {
pScrn->xDpi = monitorResolution;
pScrn->yDpi = monitorResolution;
from = X_CMDLINE;
} else if (pScrn->widthmm > 0 || pScrn->heightmm > 0) {
from = X_CONFIG;
if (pScrn->widthmm > 0) {
pScrn->xDpi =
(int)((double)pScrn->virtualX * MMPERINCH / pScrn->widthmm);
}
if (pScrn->heightmm > 0) {
pScrn->yDpi =
(int)((double)pScrn->virtualY * MMPERINCH / pScrn->heightmm);
}
if (pScrn->xDpi > 0 && pScrn->yDpi <= 0)
pScrn->yDpi = pScrn->xDpi;
if (pScrn->yDpi > 0 && pScrn->xDpi <= 0)
pScrn->xDpi = pScrn->yDpi;
xf86DrvMsg(pScrn->scrnIndex, from, "Display dimensions: (%d, %d) mm\n",
pScrn->widthmm, pScrn->heightmm);
/* Warn if config and probe disagree about display size */
if ( ddcWidthmm && ddcHeightmm ) {
if (pScrn->widthmm > 0) {
widthErr = abs(ddcWidthmm - pScrn->widthmm);
} else {
widthErr = 0;
}
if (pScrn->heightmm > 0) {
heightErr = abs(ddcHeightmm - pScrn->heightmm);
} else {
heightErr = 0;
}
if (widthErr>10 || heightErr>10) {
/* Should include config file name for monitor here */
xf86DrvMsg(pScrn->scrnIndex, X_WARNING,
"Probed monitor is %dx%d mm, using Displaysize %dx%d mm\n",
ddcWidthmm,ddcHeightmm, pScrn->widthmm,pScrn->heightmm);
}
}
} else if ( ddcWidthmm && ddcHeightmm ) {
from = X_PROBED;
xf86DrvMsg(pScrn->scrnIndex, from, "Display dimensions: (%d, %d) mm\n",
ddcWidthmm, ddcHeightmm );
pScrn->widthmm = ddcWidthmm;
pScrn->heightmm = ddcHeightmm;
if (pScrn->widthmm > 0) {
pScrn->xDpi =
(int)((double)pScrn->virtualX * MMPERINCH / pScrn->widthmm);
}
if (pScrn->heightmm > 0) {
pScrn->yDpi =
(int)((double)pScrn->virtualY * MMPERINCH / pScrn->heightmm);
}
if (pScrn->xDpi > 0 && pScrn->yDpi <= 0)
pScrn->yDpi = pScrn->xDpi;
if (pScrn->yDpi > 0 && pScrn->xDpi <= 0)
pScrn->xDpi = pScrn->yDpi;
} else {
if (x > 0)
pScrn->xDpi = x;
else
pScrn->xDpi = DEFAULT_DPI;
if (y > 0)
pScrn->yDpi = y;
else
pScrn->yDpi = DEFAULT_DPI;
}
xf86DrvMsg(pScrn->scrnIndex, from, "DPI set to (%d, %d)\n",
pScrn->xDpi, pScrn->yDpi);
}
#undef MMPERINCH
void
xf86SetBlackWhitePixels(ScreenPtr pScreen)
{
if (xf86FlipPixels) {
pScreen->whitePixel = 0;
pScreen->blackPixel = 1;
} else {
pScreen->whitePixel = 1;
pScreen->blackPixel = 0;
}
}
/*
* Function to enable/disable access to the frame buffer
*
* This is used when VT switching and when entering/leaving DGA direct mode.
*
* This has been rewritten again to eliminate the saved pixmap. The
* devPrivate field in the screen pixmap is set to NULL to catch code
* accidentally referencing the frame buffer while the X server is not
* supposed to touch it.
*
* Here, we exchange the pixmap private data, rather than the pixmaps
* themselves to avoid having to find and change any references to the screen
* pixmap such as GC's, window privates etc. This also means that this code
* does not need to know exactly how the pixmap pixels are accessed. Further,
* this exchange is >not< done through the screen's ModifyPixmapHeader()
* vector. This means the called frame buffer code layers can determine
* whether they are switched in or out by keeping track of the root pixmap's
* private data, and therefore don't need to access pScrnInfo->vtSema.
*/
void
xf86EnableDisableFBAccess(int scrnIndex, Bool enable)
{
ScrnInfoPtr pScrnInfo = xf86Screens[scrnIndex];
ScreenPtr pScreen = pScrnInfo->pScreen;
PixmapPtr pspix;
pspix = (*pScreen->GetScreenPixmap) (pScreen);
if (enable)
{
/*
* Restore all of the clip lists on the screen
*/
if (!xf86Resetting)
SetRootClip (pScreen, TRUE);
}
else
{
/*
* Empty all of the clip lists on the screen
*/
SetRootClip (pScreen, FALSE);
}
}
/* Print driver messages in the standard format of
(<type>) <screen name>(<screen index>): <message> */
void
xf86VDrvMsgVerb(int scrnIndex, MessageType type, int verb, const char *format,
va_list args)
{
/* Prefix the scrnIndex name to the format string. */
if (scrnIndex >= 0 && scrnIndex < xf86NumScreens &&
xf86Screens[scrnIndex]->name)
LogHdrMessageVerb(type, verb, format, args, "%s(%d): ",
xf86Screens[scrnIndex]->name, scrnIndex);
else
LogVMessageVerb(type, verb, format, args);
}
/* Print driver messages, with verbose level specified directly */
void
xf86DrvMsgVerb(int scrnIndex, MessageType type, int verb, const char *format,
...)
{
va_list ap;
va_start(ap, format);
xf86VDrvMsgVerb(scrnIndex, type, verb, format, ap);
va_end(ap);
}
/* Print driver messages, with verbose level of 1 (default) */
void
xf86DrvMsg(int scrnIndex, MessageType type, const char *format, ...)
{
va_list ap;
va_start(ap, format);
xf86VDrvMsgVerb(scrnIndex, type, 1, format, ap);
va_end(ap);
}
/* Print input driver messages in the standard format of
(<type>) <driver>: <device name>: <message> */
void
xf86VIDrvMsgVerb(InputInfoPtr dev, MessageType type, int verb,
const char *format, va_list args)
{
const char *driverName = NULL;
const char *deviceName = NULL;
/* Prefix driver and device names to formatted message. */
if (dev) {
deviceName = dev->name;
if (dev->drv)
driverName = dev->drv->driverName;
}
LogHdrMessageVerb(type, verb, format, args, "%s: %s: ", driverName,
deviceName);
}
/* Print input driver message, with verbose level specified directly */
void
xf86IDrvMsgVerb(InputInfoPtr dev, MessageType type, int verb, const char *format,
...)
{
va_list ap;
va_start(ap, format);
xf86VIDrvMsgVerb(dev, type, verb, format, ap);
va_end(ap);
}
/* Print input driver messages, with verbose level of 1 (default) */
void
xf86IDrvMsg(InputInfoPtr dev, MessageType type, const char *format, ...)
{
va_list ap;
va_start(ap, format);
xf86VIDrvMsgVerb(dev, type, 1, format, ap);
va_end(ap);
}
/* Print non-driver messages with verbose level specified directly */
void
xf86MsgVerb(MessageType type, int verb, const char *format, ...)
{
va_list ap;
va_start(ap, format);
LogVMessageVerb(type, verb, format, ap);
va_end(ap);
}
/* Print non-driver messages with verbose level of 1 (default) */
void
xf86Msg(MessageType type, const char *format, ...)
{
va_list ap;
va_start(ap, format);
LogVMessageVerb(type, 1, format, ap);
va_end(ap);
}
/* Just like ErrorF, but with the verbose level checked */
void
xf86ErrorFVerb(int verb, const char *format, ...)
{
va_list ap;
va_start(ap, format);
if (xf86Verbose >= verb || xf86LogVerbose >= verb)
LogVWrite(verb, format, ap);
va_end(ap);
}
/* Like xf86ErrorFVerb, but with an implied verbose level of 1 */
void
xf86ErrorF(const char *format, ...)
{
va_list ap;
va_start(ap, format);
if (xf86Verbose >= 1 || xf86LogVerbose >= 1)
LogVWrite(1, format, ap);
va_end(ap);
}
void
xf86LogInit(void)
{
char *lf = NULL;
#define LOGSUFFIX ".log"
#define LOGOLDSUFFIX ".old"
/* Get the log file name */
if (xf86LogFileFrom == X_DEFAULT) {
/* Append the display number and ".log" */
if (asprintf(&lf, "%s%%s" LOGSUFFIX, xf86LogFile) == -1)
FatalError("Cannot allocate space for the log file name\n");
xf86LogFile = lf;
}
xf86LogFile = LogInit(xf86LogFile, LOGOLDSUFFIX);
xf86LogFileWasOpened = TRUE;
xf86SetVerbosity(xf86Verbose);
xf86SetLogVerbosity(xf86LogVerbose);
#undef LOGSUFFIX
#undef LOGOLDSUFFIX
free(lf);
}
void
xf86CloseLog(enum ExitCode error)
{
LogClose(error);
}
/*
* Drivers can use these for using their own SymTabRecs.
*/
const char *
xf86TokenToString(SymTabPtr table, int token)
{
int i;
for (i = 0; table[i].token >= 0 && table[i].token != token; i++)
;
if (table[i].token < 0)
return NULL;
else
return table[i].name;
}
int
xf86StringToToken(SymTabPtr table, const char *string)
{
int i;
if (string == NULL)
return -1;
for (i = 0; table[i].token >= 0 && xf86NameCmp(string, table[i].name); i++)
;
return table[i].token;
}
/*
* helper to display the clocks found on a card
*/
void
xf86ShowClocks(ScrnInfoPtr scrp, MessageType from)
{
int j;
xf86DrvMsg(scrp->scrnIndex, from, "Pixel clocks available:");
for (j=0; j < scrp->numClocks; j++) {
if ((j % 4) == 0) {
xf86ErrorF("\n");
xf86DrvMsg(scrp->scrnIndex, from, "pixel clocks:");
}
xf86ErrorF(" %7.3f", (double)scrp->clock[j] / 1000.0);
}
xf86ErrorF("\n");
}
/*
* This prints out the driver identify message, including the names of
* the supported chipsets.
*
* XXX This makes assumptions about the line width, etc. Maybe we could
* use a more general "pretty print" function for messages.
*/
void
xf86PrintChipsets(const char *drvname, const char *drvmsg, SymTabPtr chips)
{
int len, i;
len = 6 + strlen(drvname) + 2 + strlen(drvmsg) + 2;
xf86Msg(X_INFO, "%s: %s:", drvname, drvmsg);
for (i = 0; chips[i].name != NULL; i++) {
if (i != 0) {
xf86ErrorF(",");
len++;
}
if (len + 2 + strlen(chips[i].name) < 78) {
xf86ErrorF(" ");
len++;
} else {
xf86ErrorF("\n\t");
len = 8;
}
xf86ErrorF("%s", chips[i].name);
len += strlen(chips[i].name);
}
xf86ErrorF("\n");
}
int
xf86MatchDevice(const char *drivername, GDevPtr **sectlist)
{
GDevPtr gdp, *pgdp = NULL;
confScreenPtr screensecptr;
int i,j;
if (sectlist)
*sectlist = NULL;
/*
* This can happen when running Xorg -showopts and a module like ati
* or vmware tries to load its submodules when xf86ConfigLayout is empty
*/
if (!xf86ConfigLayout.screens)
return 0;
/*
* This is a very important function that matches the device sections
* as they show up in the config file with the drivers that the server
* loads at run time.
*
* ChipProbe can call
* int xf86MatchDevice(char * drivername, GDevPtr ** sectlist)
* with its driver name. The function allocates an array of GDevPtr and
* returns this via sectlist and returns the number of elements in
* this list as return value. 0 means none found, -1 means fatal error.
*
* It can figure out which of the Device sections to use for which card
* (using things like the Card statement, etc). For single headed servers
* there will of course be just one such Device section.
*/
i = 0;
/*
* first we need to loop over all the Screens sections to get to all
* 'active' device sections
*/
for (j=0; xf86ConfigLayout.screens[j].screen != NULL; j++) {
screensecptr = xf86ConfigLayout.screens[j].screen;
if ((screensecptr->device->driver != NULL)
&& (xf86NameCmp( screensecptr->device->driver,drivername) == 0)
&& (! screensecptr->device->claimed)) {
/*
* we have a matching driver that wasn't claimed, yet
*/
pgdp = xnfrealloc(pgdp, (i + 2) * sizeof(GDevPtr));
pgdp[i++] = screensecptr->device;
}
}
/* Then handle the inactive devices */
j = 0;
while (xf86ConfigLayout.inactives[j].identifier) {
gdp = &xf86ConfigLayout.inactives[j];
if (gdp->driver && !gdp->claimed &&
!xf86NameCmp(gdp->driver,drivername)) {
/* we have a matching driver that wasn't claimed yet */
pgdp = xnfrealloc(pgdp, (i + 2) * sizeof(GDevPtr));
pgdp[i++] = gdp;
}
j++;
}
/*
* make the array NULL terminated and return its address
*/
if (i)
pgdp[i] = NULL;
if (sectlist)
*sectlist = pgdp;
else
free(pgdp);
return i;
}
const char *
xf86GetVisualName(int visual)
{
if (visual < 0 || visual > DirectColor)
return NULL;
return xf86VisualNames[visual];
}
int
xf86GetVerbosity(void)
{
return max(xf86Verbose, xf86LogVerbose);
}
Pix24Flags
xf86GetPix24(void)
{
return xf86Info.pixmap24;
}
int
xf86GetDepth(void)
{
return xf86Depth;
}
rgb
xf86GetWeight(void)
{
return xf86Weight;
}
Gamma
xf86GetGamma(void)
{
return xf86Gamma;
}
Bool
xf86GetFlipPixels(void)
{
return xf86FlipPixels;
}
const char *
xf86GetServerName(void)
{
return xf86ServerName;
}
Bool
xf86ServerIsExiting(void)
{
return (dispatchException & DE_TERMINATE) == DE_TERMINATE;
}
Bool
xf86ServerIsResetting(void)
{
return xf86Resetting;
}
Bool
xf86ServerIsInitialising(void)
{
return xf86Initialising;
}
Bool
xf86ServerIsOnlyDetecting(void)
{
return xf86DoConfigure;
}
Bool
xf86CaughtSignal(void)
{
return xf86Info.caughtSignal;
}
Bool
xf86GetVidModeAllowNonLocal(void)
{
return xf86Info.vidModeAllowNonLocal;
}
Bool
xf86GetVidModeEnabled(void)
{
return xf86Info.vidModeEnabled;
}
Bool
xf86GetModInDevAllowNonLocal(void)
{
return xf86Info.miscModInDevAllowNonLocal;
}
Bool
xf86GetModInDevEnabled(void)
{
return xf86Info.miscModInDevEnabled;
}
Bool
xf86GetAllowMouseOpenFail(void)
{
return xf86Info.allowMouseOpenFail;
}
void
xf86DisableRandR(void)
{
xf86Info.disableRandR = TRUE;
xf86Info.randRFrom = X_PROBED;
}
CARD32
xf86GetModuleVersion(pointer module)
{
return (CARD32)LoaderGetModuleVersion(module);
}
pointer
xf86LoadDrvSubModule(DriverPtr drv, const char *name)
{
pointer ret;
int errmaj = 0, errmin = 0;
ret = LoadSubModule(drv->module, name, NULL, NULL, NULL, NULL,
&errmaj, &errmin);
if (!ret)
LoaderErrorMsg(NULL, name, errmaj, errmin);
return ret;
}
pointer
xf86LoadSubModule(ScrnInfoPtr pScrn, const char *name)
{
pointer ret;
int errmaj = 0, errmin = 0;
ret = LoadSubModule(pScrn->module, name, NULL, NULL, NULL, NULL,
&errmaj, &errmin);
if (!ret)
LoaderErrorMsg(pScrn->name, name, errmaj, errmin);
return ret;
}
/*
* xf86LoadOneModule loads a single module.
*/
pointer
xf86LoadOneModule(char *name, pointer opt)
{
int errmaj, errmin;
char *Name;
pointer mod;
if (!name)
return NULL;
/* Normalise the module name */
Name = xf86NormalizeName(name);
/* Skip empty names */
if (Name == NULL)
return NULL;
if (*Name == '\0') {
free(Name);
return NULL;
}
mod = LoadModule(Name, NULL, NULL, NULL, opt, NULL, &errmaj, &errmin);
if (!mod)
LoaderErrorMsg(NULL, Name, errmaj, errmin);
free(Name);
return mod;
}
void
xf86UnloadSubModule(pointer mod)
{
UnloadSubModule(mod);
}
Bool
xf86LoaderCheckSymbol(const char *name)
{
return LoaderSymbol(name) != NULL;
}
typedef enum {
OPTION_BACKING_STORE
} BSOpts;
static const OptionInfoRec BSOptions[] = {
{ OPTION_BACKING_STORE, "BackingStore", OPTV_BOOLEAN, {0}, FALSE },
{ -1, NULL, OPTV_NONE, {0}, FALSE }
};
void
xf86SetBackingStore(ScreenPtr pScreen)
{
Bool useBS = FALSE;
MessageType from = X_DEFAULT;
ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
OptionInfoPtr options;
options = xnfalloc(sizeof(BSOptions));
(void)memcpy(options, BSOptions, sizeof(BSOptions));
xf86ProcessOptions(pScrn->scrnIndex, pScrn->options, options);
/* check for commandline option here */
if (xf86bsEnableFlag) {
from = X_CMDLINE;
useBS = TRUE;
} else if (xf86bsDisableFlag) {
from = X_CMDLINE;
useBS = FALSE;
} else {
if (xf86GetOptValBool(options, OPTION_BACKING_STORE, &useBS))
from = X_CONFIG;
}
free(options);
pScreen->backingStoreSupport = useBS ? Always : NotUseful;
if (serverGeneration == 1)
xf86DrvMsg(pScreen->myNum, from, "Backing store %s\n",
useBS ? "enabled" : "disabled");
}
typedef enum {
OPTION_SILKEN_MOUSE
} SMOpts;
static const OptionInfoRec SMOptions[] = {
{ OPTION_SILKEN_MOUSE, "SilkenMouse", OPTV_BOOLEAN, {0}, FALSE },
{ -1, NULL, OPTV_NONE, {0}, FALSE }
};
void
xf86SetSilkenMouse (ScreenPtr pScreen)
{
Bool useSM = TRUE;
MessageType from = X_DEFAULT;
ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
OptionInfoPtr options;
options = xnfalloc(sizeof(SMOptions));
(void)memcpy(options, SMOptions, sizeof(SMOptions));
xf86ProcessOptions(pScrn->scrnIndex, pScrn->options, options);
/* check for commandline option here */
/* disable if screen shares resources */
/* TODO VGA arb disable silken mouse */
if (xf86silkenMouseDisableFlag) {
from = X_CMDLINE;
useSM = FALSE;
} else {
if (xf86GetOptValBool(options, OPTION_SILKEN_MOUSE, &useSM))
from = X_CONFIG;
}
free(options);
/*
* XXX quick hack to report correctly for OSs that can't do SilkenMouse
* yet. Should handle this differently so that alternate async methods
* work correctly with this too.
*/
pScrn->silkenMouse = useSM && xf86Info.useSIGIO && xf86SIGIOSupported();
if (serverGeneration == 1)
xf86DrvMsg(pScreen->myNum, from, "Silken mouse %s\n",
pScrn->silkenMouse ? "enabled" : "disabled");
}
/* Wrote this function for the PM2 Xv driver, preliminary. */
pointer
xf86FindXvOptions(int scrnIndex, int adaptor_index, char *port_name,
char **adaptor_name, pointer *adaptor_options)
{
ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
confXvAdaptorPtr adaptor;
int i;
if (adaptor_index >= pScrn->confScreen->numxvadaptors) {
if (adaptor_name) *adaptor_name = NULL;
if (adaptor_options) *adaptor_options = NULL;
return NULL;
}
adaptor = &pScrn->confScreen->xvadaptors[adaptor_index];
if (adaptor_name) *adaptor_name = adaptor->identifier;
if (adaptor_options) *adaptor_options = adaptor->options;
for (i = 0; i < adaptor->numports; i++)
if (!xf86NameCmp(adaptor->ports[i].identifier, port_name))
return adaptor->ports[i].options;
return NULL;
}
/* Rather than duplicate loader's get OS function, just include it directly */
#define LoaderGetOS xf86GetOS
#include "loader/os.c"
static void
xf86ConfigFbEntityInactive(EntityInfoPtr pEnt, EntityProc init,
EntityProc enter, EntityProc leave, pointer private)
{
ScrnInfoPtr pScrn;
if ((pScrn = xf86FindScreenForEntity(pEnt->index)))
xf86RemoveEntityFromScreen(pScrn,pEnt->index);
xf86SetEntityFuncs(pEnt->index,init,enter,leave,private);
}
ScrnInfoPtr
xf86ConfigFbEntity(ScrnInfoPtr pScrn, int scrnFlag, int entityIndex,
EntityProc init, EntityProc enter, EntityProc leave,
pointer private)
{
EntityInfoPtr pEnt = xf86GetEntityInfo(entityIndex);
if (!pEnt) return pScrn;
if (!(pEnt->location.type == BUS_NONE)) {
free(pEnt);
return pScrn;
}
if (!pEnt->active) {
xf86ConfigFbEntityInactive(pEnt, init, enter, leave, private);
free(pEnt);
return pScrn;
}
if (!pScrn)
pScrn = xf86AllocateScreen(pEnt->driver,scrnFlag);
xf86AddEntityToScreen(pScrn,entityIndex);
xf86SetEntityFuncs(entityIndex,init,enter,leave,private);
free(pEnt);
return pScrn;
}
Bool
xf86IsScreenPrimary(int scrnIndex)
{
ScrnInfoPtr pScrn = xf86Screens[scrnIndex];
int i;
for (i=0 ; i < pScrn->numEntities; i++) {
if (xf86IsEntityPrimary(i))
return TRUE;
}
return FALSE;
}
int
xf86RegisterRootWindowProperty(int ScrnIndex, Atom property, Atom type,
int format, unsigned long len, pointer value )
{
RootWinPropPtr pNewProp = NULL, pRegProp;
Bool existing = FALSE;
DebugF("xf86RegisterRootWindowProperty(%d, %ld, %ld, %d, %ld, %p)\n",
ScrnIndex, property, type, format, len, value);
if (ScrnIndex<0 || ScrnIndex>=xf86NumScreens) {
return BadMatch;
}
if (xf86RegisteredPropertiesTable &&
xf86RegisteredPropertiesTable[ScrnIndex]) {
for (pNewProp = xf86RegisteredPropertiesTable[ScrnIndex];
pNewProp; pNewProp = pNewProp->next) {
if (strcmp(pNewProp->name, NameForAtom(property)) == 0)
break;
}
}
if (!pNewProp) {
if ((pNewProp = (RootWinPropPtr)malloc(sizeof(RootWinProp))) == NULL) {
return BadAlloc;
}
/*
* We will put this property at the end of the list so that
* the changes are made in the order they were requested.
*/
pNewProp->next = NULL;
} else {
free(pNewProp->name);
existing = TRUE;
}
pNewProp->name = xnfstrdup(NameForAtom(property));
pNewProp->type = type;
pNewProp->format = format;
pNewProp->size = len;
pNewProp->data = value;
DebugF("new property filled\n");
if (xf86RegisteredPropertiesTable == NULL) {
DebugF("creating xf86RegisteredPropertiesTable[] size %d\n",
xf86NumScreens);
xf86RegisteredPropertiesTable =
xnfcalloc(sizeof(RootWinProp), xf86NumScreens);
}
DebugF("xf86RegisteredPropertiesTable %p\n",
(void *)xf86RegisteredPropertiesTable);
DebugF("xf86RegisteredPropertiesTable[%d] %p\n",
ScrnIndex, (void *)xf86RegisteredPropertiesTable[ScrnIndex]);
if (!existing) {
if ( xf86RegisteredPropertiesTable[ScrnIndex] == NULL) {
xf86RegisteredPropertiesTable[ScrnIndex] = pNewProp;
} else {
pRegProp = xf86RegisteredPropertiesTable[ScrnIndex];
while (pRegProp->next != NULL) {
DebugF("- next %p\n", (void *)pRegProp);
pRegProp = pRegProp->next;
}
pRegProp->next = pNewProp;
}
}
DebugF("xf86RegisterRootWindowProperty succeeded\n");
return Success;
}
Bool
xf86IsUnblank(int mode)
{
switch(mode) {
case SCREEN_SAVER_OFF:
case SCREEN_SAVER_FORCER:
return TRUE;
case SCREEN_SAVER_ON:
case SCREEN_SAVER_CYCLE:
return FALSE;
default:
xf86MsgVerb(X_WARNING, 0, "Unexpected save screen mode: %d\n", mode);
return TRUE;
}
}
void
xf86MotionHistoryAllocate(InputInfoPtr pInfo)
{
AllocateMotionHistory(pInfo->dev);
}
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