xserver-multidpi/hw/xfree86/common/xf86VidMode.c
Paulo Cesar Pereira de Andrade 49f77fff14 Rework symbol visibility for easier maintenance
Save in a few special cases, _X_EXPORT should not be used in C source
files. Instead, it should be used in headers, and the proper C source
include that header. Some special cases are symbols that need to be
shared between modules, but not expected to be used by external drivers,
and symbols that are accessible via LoaderSymbol/dlopen.

  This patch also adds conditionally some new sdk header files, depending
on extensions enabled. These files were added to match pattern for
other extensions/modules, that is, have the headers "deciding" symbol
visibility in the sdk. These headers are:
o Xext/panoramiXsrv.h, Xext/panoramiX.h
o fbpict.h (unconditionally)
o vidmodeproc.h
o mioverlay.h (unconditionally, used only by xaa)
o xfixes.h (unconditionally, symbols required by dri2)

  LoaderSymbol and similar functions now don't have different prototypes,
in loaderProcs.h and xf86Module.h, so that both headers can be included,
without the need of defining IN_LOADER.

  xf86NewInputDevice() device prototype readded to xf86Xinput.h, but
not exported (and with a comment about it).
2008-12-03 05:43:34 -02:00

674 lines
15 KiB
C

/*
* Copyright (c) 1999-2003 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).
*/
/*
* This file contains the VidMode functions required by the extension.
* These have been added to avoid the need for the higher level extension
* code to access the private XFree86 data structures directly. Wherever
* possible this code uses the functions in xf86Mode.c to do the work,
* so that two version of code that do similar things don't have to be
* maintained.
*/
#ifdef HAVE_XORG_CONFIG_H
#include <xorg-config.h>
#endif
#include <X11/X.h>
#include "os.h"
#include "xf86.h"
#include "xf86Priv.h"
#ifdef XF86VIDMODE
#include "vidmodeproc.h"
#include "xf86cmap.h"
static int VidModeKeyIndex;
static DevPrivateKey VidModeKey;
static int VidModeCount = 0;
static Bool VidModeClose(int i, ScreenPtr pScreen);
#define VMPTR(p) ((VidModePtr)dixLookupPrivate(&(p)->devPrivates, VidModeKey))
#endif
#ifdef DEBUG
# define DEBUG_P(x) ErrorF(x"\n");
#else
# define DEBUG_P(x) /**/
#endif
Bool
VidModeExtensionInit(ScreenPtr pScreen)
{
#ifdef XF86VIDMODE
VidModePtr pVidMode;
if (!xf86GetVidModeEnabled()) {
DEBUG_P("!xf86GetVidModeEnabled()");
return FALSE;
}
VidModeKey = &VidModeKeyIndex;
if (!dixSetPrivate(&pScreen->devPrivates, VidModeKey,
xcalloc(sizeof(VidModeRec), 1))) {
DEBUG_P("xcalloc failed");
return FALSE;
}
pVidMode = VMPTR(pScreen);
pVidMode->Flags = 0;
pVidMode->Next = NULL;
pVidMode->CloseScreen = pScreen->CloseScreen;
pScreen->CloseScreen = VidModeClose;
VidModeCount++;
return TRUE;
#else
DEBUG_P("no vidmode extension");
return FALSE;
#endif
}
#ifdef XF86VIDMODE
static Bool
VidModeClose(int i, ScreenPtr pScreen)
{
VidModePtr pVidMode = VMPTR(pScreen);
/* This shouldn't happen */
if (!pVidMode)
return FALSE;
pScreen->CloseScreen = pVidMode->CloseScreen;
if (--VidModeCount == 0) {
xfree(dixLookupPrivate(&pScreen->devPrivates, VidModeKey));
dixSetPrivate(&pScreen->devPrivates, VidModeKey, NULL);
VidModeKey = NULL;
}
return pScreen->CloseScreen(i, pScreen);
}
Bool
VidModeAvailable(int scrnIndex)
{
ScrnInfoPtr pScrn;
VidModePtr pVidMode;
if (VidModeKey == NULL) {
DEBUG_P("VidModeKey == NULL");
return FALSE;
}
pScrn = xf86Screens[scrnIndex];
if (pScrn == NULL) {
DEBUG_P("pScrn == NULL");
return FALSE;
}
pVidMode = VMPTR(pScrn->pScreen);
if (pVidMode)
return TRUE;
else {
DEBUG_P("pVidMode == NULL");
return FALSE;
}
}
Bool
VidModeGetCurrentModeline(int scrnIndex, pointer *mode, int *dotClock)
{
ScrnInfoPtr pScrn;
if (!VidModeAvailable(scrnIndex))
return FALSE;
pScrn = xf86Screens[scrnIndex];
if (pScrn->currentMode) {
*mode = (pointer)(pScrn->currentMode);
*dotClock = pScrn->currentMode->Clock;
return TRUE;
}
return FALSE;
}
int
VidModeGetDotClock(int scrnIndex, int Clock)
{
ScrnInfoPtr pScrn;
if (!VidModeAvailable(scrnIndex))
return 0;
pScrn = xf86Screens[scrnIndex];
if ((pScrn->progClock) || (Clock >= MAXCLOCKS))
return Clock;
else
return pScrn->clock[Clock];
}
int
VidModeGetNumOfClocks(int scrnIndex, Bool *progClock)
{
ScrnInfoPtr pScrn;
if (!VidModeAvailable(scrnIndex))
return 0;
pScrn = xf86Screens[scrnIndex];
if (pScrn->progClock){
*progClock = TRUE;
return 0;
} else {
*progClock = FALSE;
return pScrn->numClocks;
}
}
Bool
VidModeGetClocks(int scrnIndex, int *Clocks)
{
ScrnInfoPtr pScrn;
int i;
if (!VidModeAvailable(scrnIndex))
return FALSE;
pScrn = xf86Screens[scrnIndex];
if (pScrn->progClock)
return FALSE;
for (i = 0; i < pScrn->numClocks; i++)
*Clocks++ = pScrn->clock[i];
return TRUE;
}
Bool
VidModeGetFirstModeline(int scrnIndex, pointer *mode, int *dotClock)
{
ScrnInfoPtr pScrn;
VidModePtr pVidMode;
if (!VidModeAvailable(scrnIndex))
return FALSE;
pScrn = xf86Screens[scrnIndex];
pVidMode = VMPTR(pScrn->pScreen);
pVidMode->First = pScrn->modes;
pVidMode->Next = pVidMode->First->next;
if (pVidMode->First->status == MODE_OK) {
*mode = (pointer)(pVidMode->First);
*dotClock = VidModeGetDotClock(scrnIndex, pVidMode->First->Clock);
return TRUE;
}
return VidModeGetNextModeline(scrnIndex, mode, dotClock);
}
Bool
VidModeGetNextModeline(int scrnIndex, pointer *mode, int *dotClock)
{
ScrnInfoPtr pScrn;
VidModePtr pVidMode;
DisplayModePtr p;
if (!VidModeAvailable(scrnIndex))
return FALSE;
pScrn = xf86Screens[scrnIndex];
pVidMode = VMPTR(pScrn->pScreen);
for (p = pVidMode->Next; p != NULL && p != pVidMode->First; p = p->next) {
if (p->status == MODE_OK) {
pVidMode->Next = p->next;
*mode = (pointer)p;
*dotClock = VidModeGetDotClock(scrnIndex, p->Clock);
return TRUE;
}
}
return FALSE;
}
Bool
VidModeDeleteModeline(int scrnIndex, pointer mode)
{
ScrnInfoPtr pScrn;
if ((mode == NULL) || (!VidModeAvailable(scrnIndex)))
return FALSE;
pScrn = xf86Screens[scrnIndex];
xf86DeleteMode(&(pScrn->modes), (DisplayModePtr)mode);
return TRUE;
}
Bool
VidModeZoomViewport(int scrnIndex, int zoom)
{
ScrnInfoPtr pScrn;
if (!VidModeAvailable(scrnIndex))
return FALSE;
pScrn = xf86Screens[scrnIndex];
xf86ZoomViewport(pScrn->pScreen, zoom);
return TRUE;
}
Bool
VidModeSetViewPort(int scrnIndex, int x, int y)
{
ScrnInfoPtr pScrn;
if (!VidModeAvailable(scrnIndex))
return FALSE;
pScrn = xf86Screens[scrnIndex];
pScrn->frameX0 = min( max(x, 0),
pScrn->virtualX - pScrn->currentMode->HDisplay );
pScrn->frameX1 = pScrn->frameX0 + pScrn->currentMode->HDisplay - 1;
pScrn->frameY0 = min( max(y, 0),
pScrn->virtualY - pScrn->currentMode->VDisplay );
pScrn->frameY1 = pScrn->frameY0 + pScrn->currentMode->VDisplay - 1;
if (pScrn->AdjustFrame != NULL)
(pScrn->AdjustFrame)(scrnIndex, pScrn->frameX0, pScrn->frameY0, 0);
return TRUE;
}
Bool
VidModeGetViewPort(int scrnIndex, int *x, int *y)
{
ScrnInfoPtr pScrn;
if (!VidModeAvailable(scrnIndex))
return FALSE;
pScrn = xf86Screens[scrnIndex];
*x = pScrn->frameX0;
*y = pScrn->frameY0;
return TRUE;
}
Bool
VidModeSwitchMode(int scrnIndex, pointer mode)
{
ScrnInfoPtr pScrn;
DisplayModePtr pTmpMode;
Bool retval;
if (!VidModeAvailable(scrnIndex))
return FALSE;
pScrn = xf86Screens[scrnIndex];
/* save in case we fail */
pTmpMode = pScrn->currentMode;
/* Force a mode switch */
pScrn->currentMode = NULL;
retval = xf86SwitchMode(pScrn->pScreen, mode);
/* we failed: restore it */
if (retval == FALSE)
pScrn->currentMode = pTmpMode;
return retval;
}
Bool
VidModeLockZoom(int scrnIndex, Bool lock)
{
ScrnInfoPtr pScrn;
if (!VidModeAvailable(scrnIndex))
return FALSE;
pScrn = xf86Screens[scrnIndex];
if (xf86Info.dontZoom)
return FALSE;
xf86LockZoom(pScrn->pScreen, lock);
return TRUE;
}
Bool
VidModeGetMonitor(int scrnIndex, pointer *monitor)
{
ScrnInfoPtr pScrn;
if (!VidModeAvailable(scrnIndex))
return FALSE;
pScrn = xf86Screens[scrnIndex];
*monitor = (pointer)(pScrn->monitor);
return TRUE;
}
ModeStatus
VidModeCheckModeForMonitor(int scrnIndex, pointer mode)
{
ScrnInfoPtr pScrn;
if ((mode == NULL) || (!VidModeAvailable(scrnIndex)))
return MODE_ERROR;
pScrn = xf86Screens[scrnIndex];
return xf86CheckModeForMonitor((DisplayModePtr)mode, pScrn->monitor);
}
ModeStatus
VidModeCheckModeForDriver(int scrnIndex, pointer mode)
{
ScrnInfoPtr pScrn;
if ((mode == NULL) || (!VidModeAvailable(scrnIndex)))
return MODE_ERROR;
pScrn = xf86Screens[scrnIndex];
return xf86CheckModeForDriver(pScrn, (DisplayModePtr)mode, 0);
}
void
VidModeSetCrtcForMode(int scrnIndex, pointer mode)
{
ScrnInfoPtr pScrn;
DisplayModePtr ScreenModes;
if ((mode == NULL) || (!VidModeAvailable(scrnIndex)))
return;
/* Ugly hack so that the xf86Mode.c function can be used without change */
pScrn = xf86Screens[scrnIndex];
ScreenModes = pScrn->modes;
pScrn->modes = (DisplayModePtr)mode;
xf86SetCrtcForModes(pScrn, pScrn->adjustFlags);
pScrn->modes = ScreenModes;
return;
}
Bool
VidModeAddModeline(int scrnIndex, pointer mode)
{
ScrnInfoPtr pScrn;
if ((mode == NULL) || (!VidModeAvailable(scrnIndex)))
return FALSE;
pScrn = xf86Screens[scrnIndex];
((DisplayModePtr)mode)->name = strdup(""); /* freed by deletemode */
((DisplayModePtr)mode)->status = MODE_OK;
((DisplayModePtr)mode)->next = pScrn->modes->next;
((DisplayModePtr)mode)->prev = pScrn->modes;
pScrn->modes->next = (DisplayModePtr)mode;
if( ((DisplayModePtr)mode)->next != NULL )
((DisplayModePtr)mode)->next->prev = (DisplayModePtr)mode;
return TRUE;
}
int
VidModeGetNumOfModes(int scrnIndex)
{
pointer mode = NULL;
int dotClock= 0, nummodes = 0;
if (!VidModeGetFirstModeline(scrnIndex, &mode, &dotClock))
return nummodes;
do {
nummodes++;
if (!VidModeGetNextModeline(scrnIndex, &mode, &dotClock))
return nummodes;
} while (TRUE);
}
Bool
VidModeSetGamma(int scrnIndex, float red, float green, float blue)
{
ScrnInfoPtr pScrn;
Gamma gamma;
if (!VidModeAvailable(scrnIndex))
return FALSE;
pScrn = xf86Screens[scrnIndex];
gamma.red = red;
gamma.green = green;
gamma.blue = blue;
if (xf86ChangeGamma(pScrn->pScreen, gamma) != Success)
return FALSE;
else
return TRUE;
}
Bool
VidModeGetGamma(int scrnIndex, float *red, float *green, float *blue)
{
ScrnInfoPtr pScrn;
if (!VidModeAvailable(scrnIndex))
return FALSE;
pScrn = xf86Screens[scrnIndex];
*red = pScrn->gamma.red;
*green = pScrn->gamma.green;
*blue = pScrn->gamma.blue;
return TRUE;
}
Bool
VidModeSetGammaRamp(int scrnIndex, int size, CARD16 *r, CARD16 *g, CARD16 *b)
{
ScrnInfoPtr pScrn;
if (!VidModeAvailable(scrnIndex))
return FALSE;
pScrn = xf86Screens[scrnIndex];
xf86ChangeGammaRamp(pScrn->pScreen, size, r, g, b);
return TRUE;
}
Bool
VidModeGetGammaRamp(int scrnIndex, int size, CARD16 *r, CARD16 *g, CARD16 *b)
{
ScrnInfoPtr pScrn;
if (!VidModeAvailable(scrnIndex))
return FALSE;
pScrn = xf86Screens[scrnIndex];
xf86GetGammaRamp(pScrn->pScreen, size, r, g, b);
return TRUE;
}
int
VidModeGetGammaRampSize(int scrnIndex)
{
if (!VidModeAvailable(scrnIndex))
return 0;
return xf86GetGammaRampSize(xf86Screens[scrnIndex]->pScreen);
}
pointer
VidModeCreateMode(void)
{
DisplayModePtr mode;
mode = xalloc(sizeof(DisplayModeRec));
if (mode != NULL) {
mode->name = "";
mode->VScan = 1; /* divides refresh rate. default = 1 */
mode->Private = NULL;
mode->next = mode;
mode->prev = mode;
}
return mode;
}
void
VidModeCopyMode(pointer modefrom, pointer modeto)
{
memcpy(modeto, modefrom, sizeof(DisplayModeRec));
}
int
VidModeGetModeValue(pointer mode, int valtyp)
{
int ret = 0;
switch (valtyp) {
case VIDMODE_H_DISPLAY:
ret = ((DisplayModePtr) mode)->HDisplay;
break;
case VIDMODE_H_SYNCSTART:
ret = ((DisplayModePtr)mode)->HSyncStart;
break;
case VIDMODE_H_SYNCEND:
ret = ((DisplayModePtr)mode)->HSyncEnd;
break;
case VIDMODE_H_TOTAL:
ret = ((DisplayModePtr)mode)->HTotal;
break;
case VIDMODE_H_SKEW:
ret = ((DisplayModePtr)mode)->HSkew;
break;
case VIDMODE_V_DISPLAY:
ret = ((DisplayModePtr)mode)->VDisplay;
break;
case VIDMODE_V_SYNCSTART:
ret = ((DisplayModePtr)mode)->VSyncStart;
break;
case VIDMODE_V_SYNCEND:
ret = ((DisplayModePtr)mode)->VSyncEnd;
break;
case VIDMODE_V_TOTAL:
ret = ((DisplayModePtr)mode)->VTotal;
break;
case VIDMODE_FLAGS:
ret = ((DisplayModePtr)mode)->Flags;
break;
case VIDMODE_CLOCK:
ret = ((DisplayModePtr)mode)->Clock;
break;
}
return ret;
}
void
VidModeSetModeValue(pointer mode, int valtyp, int val)
{
switch (valtyp) {
case VIDMODE_H_DISPLAY:
((DisplayModePtr)mode)->HDisplay = val;
break;
case VIDMODE_H_SYNCSTART:
((DisplayModePtr)mode)->HSyncStart = val;
break;
case VIDMODE_H_SYNCEND:
((DisplayModePtr)mode)->HSyncEnd = val;
break;
case VIDMODE_H_TOTAL:
((DisplayModePtr)mode)->HTotal = val;
break;
case VIDMODE_H_SKEW:
((DisplayModePtr)mode)->HSkew = val;
break;
case VIDMODE_V_DISPLAY:
((DisplayModePtr)mode)->VDisplay = val;
break;
case VIDMODE_V_SYNCSTART:
((DisplayModePtr)mode)->VSyncStart = val;
break;
case VIDMODE_V_SYNCEND:
((DisplayModePtr)mode)->VSyncEnd = val;
break;
case VIDMODE_V_TOTAL:
((DisplayModePtr)mode)->VTotal = val;
break;
case VIDMODE_FLAGS:
((DisplayModePtr)mode)->Flags = val;
break;
case VIDMODE_CLOCK:
((DisplayModePtr)mode)->Clock = val;
break;
}
return;
}
vidMonitorValue
VidModeGetMonitorValue(pointer monitor, int valtyp, int indx)
{
vidMonitorValue ret;
switch (valtyp) {
case VIDMODE_MON_VENDOR:
ret.ptr = (((MonPtr)monitor)->vendor);
break;
case VIDMODE_MON_MODEL:
ret.ptr = (((MonPtr)monitor)->model);
break;
case VIDMODE_MON_NHSYNC:
ret.i = ((MonPtr)monitor)->nHsync;
break;
case VIDMODE_MON_NVREFRESH:
ret.i = ((MonPtr)monitor)->nVrefresh;
break;
case VIDMODE_MON_HSYNC_LO:
ret.f = (100.0 * ((MonPtr)monitor)->hsync[indx].lo);
break;
case VIDMODE_MON_HSYNC_HI:
ret.f = (100.0 * ((MonPtr)monitor)->hsync[indx].hi);
break;
case VIDMODE_MON_VREFRESH_LO:
ret.f = (100.0 * ((MonPtr)monitor)->vrefresh[indx].lo);
break;
case VIDMODE_MON_VREFRESH_HI:
ret.f = (100.0 * ((MonPtr)monitor)->vrefresh[indx].hi);
break;
}
return ret;
}
#endif /* XF86VIDMODE */