428261197a
Tested by ajacoutot@, krw@, shadchin@ and jasper@ on various configurations including multihead with both zaphod and xrandr.
728 lines
19 KiB
C
728 lines
19 KiB
C
/*
|
|
* 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).
|
|
*/
|
|
|
|
#ifdef HAVE_XORG_CONFIG_H
|
|
#include <xorg-config.h>
|
|
#else
|
|
#ifdef HAVE_CONFIG_H
|
|
#include <config.h>
|
|
#endif
|
|
#endif
|
|
|
|
#include "xf86Modes.h"
|
|
#include "xf86Priv.h"
|
|
|
|
extern XF86ConfigPtr xf86configptr;
|
|
|
|
/*
|
|
* This is the version number where we epoched. These files get copied
|
|
* into drivers that want to use this setup infrastructure on pre-1.3
|
|
* servers, so when that happens they need to define these symbols
|
|
* themselves. However, _in_ the server, we basically always define them now.
|
|
*/
|
|
#if XORG_VERSION_CURRENT <= XORG_VERSION_NUMERIC(7,2,99,2,0)
|
|
|
|
/**
|
|
* Calculates the horizontal sync rate of a mode.
|
|
*/
|
|
double
|
|
xf86ModeHSync(const DisplayModeRec *mode)
|
|
{
|
|
double hsync = 0.0;
|
|
|
|
if (mode->HSync > 0.0)
|
|
hsync = mode->HSync;
|
|
else if (mode->HTotal > 0)
|
|
hsync = (float)mode->Clock / (float)mode->HTotal;
|
|
|
|
return hsync;
|
|
}
|
|
|
|
/**
|
|
* Calculates the vertical refresh rate of a mode.
|
|
*/
|
|
double
|
|
xf86ModeVRefresh(const DisplayModeRec *mode)
|
|
{
|
|
double refresh = 0.0;
|
|
|
|
if (mode->VRefresh > 0.0)
|
|
refresh = mode->VRefresh;
|
|
else if (mode->HTotal > 0 && mode->VTotal > 0) {
|
|
refresh = mode->Clock * 1000.0 / mode->HTotal / mode->VTotal;
|
|
if (mode->Flags & V_INTERLACE)
|
|
refresh *= 2.0;
|
|
if (mode->Flags & V_DBLSCAN)
|
|
refresh /= 2.0;
|
|
if (mode->VScan > 1)
|
|
refresh /= (float)(mode->VScan);
|
|
}
|
|
return refresh;
|
|
}
|
|
|
|
int
|
|
xf86ModeWidth (const DisplayModeRec *mode, Rotation rotation)
|
|
{
|
|
switch (rotation & 0xf) {
|
|
case RR_Rotate_0:
|
|
case RR_Rotate_180:
|
|
return mode->HDisplay;
|
|
case RR_Rotate_90:
|
|
case RR_Rotate_270:
|
|
return mode->VDisplay;
|
|
default:
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
int
|
|
xf86ModeHeight (const DisplayModeRec *mode, Rotation rotation)
|
|
{
|
|
switch (rotation & 0xf) {
|
|
case RR_Rotate_0:
|
|
case RR_Rotate_180:
|
|
return mode->VDisplay;
|
|
case RR_Rotate_90:
|
|
case RR_Rotate_270:
|
|
return mode->HDisplay;
|
|
default:
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
/** Calculates the memory bandwidth (in MiB/sec) of a mode. */
|
|
unsigned int
|
|
xf86ModeBandwidth(DisplayModePtr mode, int depth)
|
|
{
|
|
float a_active, a_total, active_percent, pixels_per_second;
|
|
int bytes_per_pixel = bits_to_bytes(depth);
|
|
|
|
if (!mode->HTotal || !mode->VTotal || !mode->Clock)
|
|
return 0;
|
|
|
|
a_active = mode->HDisplay * mode->VDisplay;
|
|
a_total = mode->HTotal * mode->VTotal;
|
|
active_percent = a_active / a_total;
|
|
pixels_per_second = active_percent * mode->Clock * 1000.0;
|
|
|
|
return (unsigned int)(pixels_per_second * bytes_per_pixel / (1024 * 1024));
|
|
}
|
|
|
|
/** Sets a default mode name of <width>x<height> on a mode. */
|
|
void
|
|
xf86SetModeDefaultName(DisplayModePtr mode)
|
|
{
|
|
Bool interlaced = !!(mode->Flags & V_INTERLACE);
|
|
|
|
free(mode->name);
|
|
|
|
mode->name = XNFprintf("%dx%d%s", mode->HDisplay, mode->VDisplay,
|
|
interlaced ? "i" : "");
|
|
}
|
|
|
|
/*
|
|
* xf86SetModeCrtc
|
|
*
|
|
* Initialises the Crtc parameters for a mode. The initialisation includes
|
|
* adjustments for interlaced and double scan modes.
|
|
*/
|
|
void
|
|
xf86SetModeCrtc(DisplayModePtr p, int adjustFlags)
|
|
{
|
|
if ((p == NULL) || ((p->type & M_T_CRTC_C) == M_T_BUILTIN))
|
|
return;
|
|
|
|
p->CrtcHDisplay = p->HDisplay;
|
|
p->CrtcHSyncStart = p->HSyncStart;
|
|
p->CrtcHSyncEnd = p->HSyncEnd;
|
|
p->CrtcHTotal = p->HTotal;
|
|
p->CrtcHSkew = p->HSkew;
|
|
p->CrtcVDisplay = p->VDisplay;
|
|
p->CrtcVSyncStart = p->VSyncStart;
|
|
p->CrtcVSyncEnd = p->VSyncEnd;
|
|
p->CrtcVTotal = p->VTotal;
|
|
if (p->Flags & V_INTERLACE) {
|
|
if (adjustFlags & INTERLACE_HALVE_V) {
|
|
p->CrtcVDisplay /= 2;
|
|
p->CrtcVSyncStart /= 2;
|
|
p->CrtcVSyncEnd /= 2;
|
|
p->CrtcVTotal /= 2;
|
|
}
|
|
/* Force interlaced modes to have an odd VTotal */
|
|
/* maybe we should only do this when INTERLACE_HALVE_V is set? */
|
|
p->CrtcVTotal |= 1;
|
|
}
|
|
|
|
if (p->Flags & V_DBLSCAN) {
|
|
p->CrtcVDisplay *= 2;
|
|
p->CrtcVSyncStart *= 2;
|
|
p->CrtcVSyncEnd *= 2;
|
|
p->CrtcVTotal *= 2;
|
|
}
|
|
if (p->VScan > 1) {
|
|
p->CrtcVDisplay *= p->VScan;
|
|
p->CrtcVSyncStart *= p->VScan;
|
|
p->CrtcVSyncEnd *= p->VScan;
|
|
p->CrtcVTotal *= p->VScan;
|
|
}
|
|
p->CrtcVBlankStart = min(p->CrtcVSyncStart, p->CrtcVDisplay);
|
|
p->CrtcVBlankEnd = max(p->CrtcVSyncEnd, p->CrtcVTotal);
|
|
p->CrtcHBlankStart = min(p->CrtcHSyncStart, p->CrtcHDisplay);
|
|
p->CrtcHBlankEnd = max(p->CrtcHSyncEnd, p->CrtcHTotal);
|
|
|
|
p->CrtcHAdjusted = FALSE;
|
|
p->CrtcVAdjusted = FALSE;
|
|
}
|
|
|
|
/**
|
|
* Allocates and returns a copy of pMode, including pointers within pMode.
|
|
*/
|
|
DisplayModePtr
|
|
xf86DuplicateMode(const DisplayModeRec *pMode)
|
|
{
|
|
DisplayModePtr pNew;
|
|
|
|
pNew = xnfalloc(sizeof(DisplayModeRec));
|
|
*pNew = *pMode;
|
|
pNew->next = NULL;
|
|
pNew->prev = NULL;
|
|
|
|
if (pMode->name == NULL)
|
|
xf86SetModeDefaultName(pNew);
|
|
else
|
|
pNew->name = xnfstrdup(pMode->name);
|
|
|
|
return pNew;
|
|
}
|
|
|
|
/**
|
|
* Duplicates every mode in the given list and returns a pointer to the first
|
|
* mode.
|
|
*
|
|
* \param modeList doubly-linked mode list
|
|
*/
|
|
DisplayModePtr
|
|
xf86DuplicateModes(ScrnInfoPtr pScrn, DisplayModePtr modeList)
|
|
{
|
|
DisplayModePtr first = NULL, last = NULL;
|
|
DisplayModePtr mode;
|
|
|
|
for (mode = modeList; mode != NULL; mode = mode->next) {
|
|
DisplayModePtr new;
|
|
|
|
new = xf86DuplicateMode(mode);
|
|
|
|
/* Insert pNew into modeList */
|
|
if (last) {
|
|
last->next = new;
|
|
new->prev = last;
|
|
} else {
|
|
first = new;
|
|
new->prev = NULL;
|
|
}
|
|
new->next = NULL;
|
|
last = new;
|
|
}
|
|
|
|
return first;
|
|
}
|
|
|
|
/**
|
|
* Returns true if the given modes should program to the same timings.
|
|
*
|
|
* This doesn't use Crtc values, as it might be used on ModeRecs without the
|
|
* Crtc values set. So, it's assumed that the other numbers are enough.
|
|
*/
|
|
Bool
|
|
xf86ModesEqual(const DisplayModeRec *pMode1, const DisplayModeRec *pMode2)
|
|
{
|
|
if (pMode1->Clock == pMode2->Clock &&
|
|
pMode1->HDisplay == pMode2->HDisplay &&
|
|
pMode1->HSyncStart == pMode2->HSyncStart &&
|
|
pMode1->HSyncEnd == pMode2->HSyncEnd &&
|
|
pMode1->HTotal == pMode2->HTotal &&
|
|
pMode1->HSkew == pMode2->HSkew &&
|
|
pMode1->VDisplay == pMode2->VDisplay &&
|
|
pMode1->VSyncStart == pMode2->VSyncStart &&
|
|
pMode1->VSyncEnd == pMode2->VSyncEnd &&
|
|
pMode1->VTotal == pMode2->VTotal &&
|
|
pMode1->VScan == pMode2->VScan &&
|
|
pMode1->Flags == pMode2->Flags)
|
|
{
|
|
return TRUE;
|
|
} else {
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
static void
|
|
add(char **p, char *new)
|
|
{
|
|
*p = xnfrealloc(*p, strlen(*p) + strlen(new) + 2);
|
|
strcat(*p, " ");
|
|
strcat(*p, new);
|
|
}
|
|
|
|
/**
|
|
* Print out a modeline.
|
|
*/
|
|
void
|
|
xf86PrintModeline(int scrnIndex,DisplayModePtr mode)
|
|
{
|
|
char tmp[256];
|
|
char *flags = xnfcalloc(1, 1);
|
|
|
|
if (mode->HSkew) {
|
|
snprintf(tmp, 256, "hskew %i", mode->HSkew);
|
|
add(&flags, tmp);
|
|
}
|
|
if (mode->VScan) {
|
|
snprintf(tmp, 256, "vscan %i", mode->VScan);
|
|
add(&flags, tmp);
|
|
}
|
|
if (mode->Flags & V_INTERLACE) add(&flags, "interlace");
|
|
if (mode->Flags & V_CSYNC) add(&flags, "composite");
|
|
if (mode->Flags & V_DBLSCAN) add(&flags, "doublescan");
|
|
if (mode->Flags & V_BCAST) add(&flags, "bcast");
|
|
if (mode->Flags & V_PHSYNC) add(&flags, "+hsync");
|
|
if (mode->Flags & V_NHSYNC) add(&flags, "-hsync");
|
|
if (mode->Flags & V_PVSYNC) add(&flags, "+vsync");
|
|
if (mode->Flags & V_NVSYNC) add(&flags, "-vsync");
|
|
if (mode->Flags & V_PCSYNC) add(&flags, "+csync");
|
|
if (mode->Flags & V_NCSYNC) add(&flags, "-csync");
|
|
#if 0
|
|
if (mode->Flags & V_CLKDIV2) add(&flags, "vclk/2");
|
|
#endif
|
|
xf86DrvMsg(scrnIndex, X_INFO,
|
|
"Modeline \"%s\"x%.01f %6.2f %i %i %i %i %i %i %i %i%s "
|
|
"(%.01f kHz)\n",
|
|
mode->name, mode->VRefresh, mode->Clock/1000., mode->HDisplay,
|
|
mode->HSyncStart, mode->HSyncEnd, mode->HTotal,
|
|
mode->VDisplay, mode->VSyncStart, mode->VSyncEnd,
|
|
mode->VTotal, flags, xf86ModeHSync(mode));
|
|
free(flags);
|
|
}
|
|
#endif /* XORG_VERSION_CURRENT <= 7.2.99.2 */
|
|
|
|
/**
|
|
* Marks as bad any modes with unsupported flags.
|
|
*
|
|
* \param modeList doubly-linked list of modes.
|
|
* \param flags flags supported by the driver.
|
|
*
|
|
* \bug only V_INTERLACE and V_DBLSCAN are supported. Is that enough?
|
|
*/
|
|
void
|
|
xf86ValidateModesFlags(ScrnInfoPtr pScrn, DisplayModePtr modeList,
|
|
int flags)
|
|
{
|
|
DisplayModePtr mode;
|
|
|
|
if (flags == (V_INTERLACE | V_DBLSCAN))
|
|
return;
|
|
|
|
for (mode = modeList; mode != NULL; mode = mode->next) {
|
|
if (mode->Flags & V_INTERLACE && !(flags & V_INTERLACE))
|
|
mode->status = MODE_NO_INTERLACE;
|
|
if (mode->Flags & V_DBLSCAN && !(flags & V_DBLSCAN))
|
|
mode->status = MODE_NO_DBLESCAN;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Marks as bad any modes extending beyond the given max X, Y, or pitch.
|
|
*
|
|
* \param modeList doubly-linked list of modes.
|
|
*/
|
|
void
|
|
xf86ValidateModesSize(ScrnInfoPtr pScrn, DisplayModePtr modeList,
|
|
int maxX, int maxY, int maxPitch)
|
|
{
|
|
DisplayModePtr mode;
|
|
|
|
for (mode = modeList; mode != NULL; mode = mode->next) {
|
|
if (maxPitch > 0 && mode->HDisplay > maxPitch)
|
|
mode->status = MODE_BAD_WIDTH;
|
|
|
|
if (maxX > 0 && mode->HDisplay > maxX)
|
|
mode->status = MODE_VIRTUAL_X;
|
|
|
|
if (maxY > 0 && mode->VDisplay > maxY)
|
|
mode->status = MODE_VIRTUAL_Y;
|
|
|
|
if (mode->next == modeList)
|
|
break;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Marks as bad any modes that aren't supported by the given monitor's
|
|
* hsync and vrefresh ranges.
|
|
*
|
|
* \param modeList doubly-linked list of modes.
|
|
*/
|
|
void
|
|
xf86ValidateModesSync(ScrnInfoPtr pScrn, DisplayModePtr modeList,
|
|
MonPtr mon)
|
|
{
|
|
DisplayModePtr mode;
|
|
|
|
for (mode = modeList; mode != NULL; mode = mode->next) {
|
|
Bool bad;
|
|
int i;
|
|
|
|
bad = TRUE;
|
|
for (i = 0; i < mon->nHsync; i++) {
|
|
if (xf86ModeHSync(mode) >= mon->hsync[i].lo * (1-SYNC_TOLERANCE) &&
|
|
xf86ModeHSync(mode) <= mon->hsync[i].hi * (1+SYNC_TOLERANCE))
|
|
{
|
|
bad = FALSE;
|
|
}
|
|
}
|
|
if (bad)
|
|
mode->status = MODE_HSYNC;
|
|
|
|
bad = TRUE;
|
|
for (i = 0; i < mon->nVrefresh; i++) {
|
|
if (xf86ModeVRefresh(mode) >= mon->vrefresh[i].lo * (1-SYNC_TOLERANCE) &&
|
|
xf86ModeVRefresh(mode) <= mon->vrefresh[i].hi * (1+SYNC_TOLERANCE))
|
|
{
|
|
bad = FALSE;
|
|
}
|
|
}
|
|
if (bad)
|
|
mode->status = MODE_VSYNC;
|
|
|
|
if (mode->next == modeList)
|
|
break;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Marks as bad any modes extending beyond outside of the given clock ranges.
|
|
*
|
|
* \param modeList doubly-linked list of modes.
|
|
* \param min pointer to minimums of clock ranges
|
|
* \param max pointer to maximums of clock ranges
|
|
* \param n_ranges number of ranges.
|
|
*/
|
|
void
|
|
xf86ValidateModesClocks(ScrnInfoPtr pScrn, DisplayModePtr modeList,
|
|
int *min, int *max, int n_ranges)
|
|
{
|
|
DisplayModePtr mode;
|
|
int i;
|
|
|
|
for (mode = modeList; mode != NULL; mode = mode->next) {
|
|
Bool good = FALSE;
|
|
for (i = 0; i < n_ranges; i++) {
|
|
if (mode->Clock >= min[i] * (1-SYNC_TOLERANCE) &&
|
|
mode->Clock <= max[i] * (1+SYNC_TOLERANCE)) {
|
|
good = TRUE;
|
|
break;
|
|
}
|
|
}
|
|
if (!good)
|
|
mode->status = MODE_CLOCK_RANGE;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* If the user has specified a set of mode names to use, mark as bad any modes
|
|
* not listed.
|
|
*
|
|
* The user mode names specified are prefixes to names of modes, so "1024x768"
|
|
* will match modes named "1024x768", "1024x768x75", "1024x768-good", but
|
|
* "1024x768x75" would only match "1024x768x75" from that list.
|
|
*
|
|
* MODE_BAD is used as the rejection flag, for lack of a better flag.
|
|
*
|
|
* \param modeList doubly-linked list of modes.
|
|
*/
|
|
void
|
|
xf86ValidateModesUserConfig(ScrnInfoPtr pScrn, DisplayModePtr modeList)
|
|
{
|
|
DisplayModePtr mode;
|
|
|
|
if (pScrn->display->modes[0] == NULL)
|
|
return;
|
|
|
|
for (mode = modeList; mode != NULL; mode = mode->next) {
|
|
int i;
|
|
Bool good = FALSE;
|
|
|
|
for (i = 0; pScrn->display->modes[i] != NULL; i++) {
|
|
if (strncmp(pScrn->display->modes[i], mode->name,
|
|
strlen(pScrn->display->modes[i])) == 0) {
|
|
good = TRUE;
|
|
break;
|
|
}
|
|
}
|
|
if (!good)
|
|
mode->status = MODE_BAD;
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
* Marks as bad any modes exceeding the given bandwidth.
|
|
*
|
|
* \param modeList doubly-linked list of modes.
|
|
* \param bandwidth bandwidth in MHz.
|
|
* \param depth color depth.
|
|
*/
|
|
void
|
|
xf86ValidateModesBandwidth(ScrnInfoPtr pScrn, DisplayModePtr modeList,
|
|
unsigned int bandwidth, int depth)
|
|
{
|
|
DisplayModePtr mode;
|
|
|
|
for (mode = modeList; mode != NULL; mode = mode->next) {
|
|
if (xf86ModeBandwidth(mode, depth) > bandwidth)
|
|
#if XORG_VERSION_CURRENT < XORG_VERSION_NUMERIC(7,0,0,0,0)
|
|
mode->status = MODE_BANDWIDTH;
|
|
#else
|
|
/* MODE_BANDWIDTH didn't exist in xserver 1.2 */
|
|
mode->status = MODE_BAD;
|
|
#endif
|
|
}
|
|
}
|
|
|
|
Bool
|
|
xf86ModeIsReduced(const DisplayModeRec *mode)
|
|
{
|
|
if ((((mode->HDisplay * 5 / 4) & ~0x07) > mode->HTotal) &&
|
|
((mode->HTotal - mode->HDisplay) == 160) &&
|
|
((mode->HSyncEnd - mode->HDisplay) == 80) &&
|
|
((mode->HSyncEnd - mode->HSyncStart) == 32) &&
|
|
((mode->VSyncStart - mode->VDisplay) == 3))
|
|
return TRUE;
|
|
return FALSE;
|
|
}
|
|
|
|
/**
|
|
* Marks as bad any reduced-blanking modes.
|
|
*
|
|
* \param modeList doubly-linked list of modes.
|
|
*/
|
|
void
|
|
xf86ValidateModesReducedBlanking(ScrnInfoPtr pScrn, DisplayModePtr modeList)
|
|
{
|
|
for (; modeList != NULL; modeList = modeList->next)
|
|
if (xf86ModeIsReduced(modeList))
|
|
modeList->status = MODE_NO_REDUCED;
|
|
}
|
|
|
|
/**
|
|
* Frees any modes from the list with a status other than MODE_OK.
|
|
*
|
|
* \param modeList pointer to a doubly-linked or circular list of modes.
|
|
* \param verbose determines whether the reason for mode invalidation is
|
|
* printed.
|
|
*/
|
|
void
|
|
xf86PruneInvalidModes(ScrnInfoPtr pScrn, DisplayModePtr *modeList,
|
|
Bool verbose)
|
|
{
|
|
DisplayModePtr mode;
|
|
|
|
for (mode = *modeList; mode != NULL;) {
|
|
DisplayModePtr next = mode->next, first = *modeList;
|
|
|
|
if (mode->status != MODE_OK) {
|
|
if (verbose) {
|
|
char *type = "";
|
|
if (mode->type & M_T_BUILTIN)
|
|
type = "built-in ";
|
|
else if (mode->type & M_T_DEFAULT)
|
|
type = "default ";
|
|
xf86DrvMsg(pScrn->scrnIndex, X_INFO,
|
|
"Not using %smode \"%s\" (%s)\n", type, mode->name,
|
|
xf86ModeStatusToString(mode->status));
|
|
}
|
|
xf86DeleteMode(modeList, mode);
|
|
}
|
|
|
|
if (next == first)
|
|
break;
|
|
mode = next;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Adds the new mode into the mode list, and returns the new list
|
|
*
|
|
* \param modes doubly-linked mode list.
|
|
*/
|
|
DisplayModePtr
|
|
xf86ModesAdd(DisplayModePtr modes, DisplayModePtr new)
|
|
{
|
|
if (modes == NULL)
|
|
return new;
|
|
|
|
if (new) {
|
|
DisplayModePtr mode = modes;
|
|
|
|
while (mode->next)
|
|
mode = mode->next;
|
|
|
|
mode->next = new;
|
|
new->prev = mode;
|
|
}
|
|
|
|
return modes;
|
|
}
|
|
|
|
/**
|
|
* Build a mode list from a list of config file modes
|
|
*/
|
|
static DisplayModePtr
|
|
xf86GetConfigModes (XF86ConfModeLinePtr conf_mode)
|
|
{
|
|
DisplayModePtr head = NULL, prev = NULL, mode;
|
|
|
|
for (; conf_mode; conf_mode = (XF86ConfModeLinePtr) conf_mode->list.next)
|
|
{
|
|
mode = calloc(1, sizeof(DisplayModeRec));
|
|
if (!mode)
|
|
continue;
|
|
mode->name = xstrdup(conf_mode->ml_identifier);
|
|
if (!mode->name)
|
|
{
|
|
free(mode);
|
|
continue;
|
|
}
|
|
mode->type = 0;
|
|
mode->Clock = conf_mode->ml_clock;
|
|
mode->HDisplay = conf_mode->ml_hdisplay;
|
|
mode->HSyncStart = conf_mode->ml_hsyncstart;
|
|
mode->HSyncEnd = conf_mode->ml_hsyncend;
|
|
mode->HTotal = conf_mode->ml_htotal;
|
|
mode->VDisplay = conf_mode->ml_vdisplay;
|
|
mode->VSyncStart = conf_mode->ml_vsyncstart;
|
|
mode->VSyncEnd = conf_mode->ml_vsyncend;
|
|
mode->VTotal = conf_mode->ml_vtotal;
|
|
mode->Flags = conf_mode->ml_flags;
|
|
mode->HSkew = conf_mode->ml_hskew;
|
|
mode->VScan = conf_mode->ml_vscan;
|
|
|
|
mode->prev = prev;
|
|
mode->next = NULL;
|
|
if (prev)
|
|
prev->next = mode;
|
|
else
|
|
head = mode;
|
|
prev = mode;
|
|
}
|
|
return head;
|
|
}
|
|
|
|
/**
|
|
* Build a mode list from a monitor configuration
|
|
*/
|
|
DisplayModePtr
|
|
xf86GetMonitorModes (ScrnInfoPtr pScrn, XF86ConfMonitorPtr conf_monitor)
|
|
{
|
|
DisplayModePtr modes = NULL;
|
|
XF86ConfModesLinkPtr modes_link;
|
|
|
|
if (!conf_monitor)
|
|
return NULL;
|
|
|
|
/*
|
|
* first we collect the mode lines from the UseModes directive
|
|
*/
|
|
for (modes_link = conf_monitor->mon_modes_sect_lst;
|
|
modes_link;
|
|
modes_link = modes_link->list.next)
|
|
{
|
|
/* If this modes link hasn't been resolved, go look it up now */
|
|
if (!modes_link->ml_modes)
|
|
modes_link->ml_modes = xf86findModes (modes_link->ml_modes_str,
|
|
xf86configptr->conf_modes_lst);
|
|
if (modes_link->ml_modes)
|
|
modes = xf86ModesAdd (modes,
|
|
xf86GetConfigModes (modes_link->ml_modes->mon_modeline_lst));
|
|
}
|
|
|
|
return xf86ModesAdd (modes,
|
|
xf86GetConfigModes (conf_monitor->mon_modeline_lst));
|
|
}
|
|
|
|
/**
|
|
* Build a mode list containing all of the default modes
|
|
*/
|
|
DisplayModePtr
|
|
xf86GetDefaultModes (void)
|
|
{
|
|
DisplayModePtr head = NULL, mode;
|
|
int i;
|
|
|
|
for (i = 0; i < xf86NumDefaultModes; i++)
|
|
{
|
|
const DisplayModeRec *defMode = &xf86DefaultModes[i];
|
|
|
|
mode = xf86DuplicateMode(defMode);
|
|
head = xf86ModesAdd(head, mode);
|
|
}
|
|
return head;
|
|
}
|
|
|
|
/*
|
|
* Walk a mode list and prune out duplicates. Will preserve the preferred
|
|
* mode of an otherwise-duplicate pair.
|
|
*
|
|
* Probably best to call this on lists that are all of a single class
|
|
* (driver, default, user, etc.), otherwise, which mode gets deleted is
|
|
* not especially well defined.
|
|
*
|
|
* Returns the new list.
|
|
*/
|
|
|
|
DisplayModePtr
|
|
xf86PruneDuplicateModes(DisplayModePtr modes)
|
|
{
|
|
DisplayModePtr m, n, o;
|
|
|
|
top:
|
|
for (m = modes; m; m = m->next) {
|
|
for (n = m->next; n; n = o) {
|
|
o = n->next;
|
|
if (xf86ModesEqual(m, n)) {
|
|
if (n->type & M_T_PREFERRED) {
|
|
xf86DeleteMode(&modes, m);
|
|
goto top;
|
|
}
|
|
else
|
|
xf86DeleteMode(&modes, n);
|
|
}
|
|
}
|
|
}
|
|
|
|
return modes;
|
|
}
|