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xenocara/xserver/hw/xfree86/modes/xf86Crtc.c

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xserver 1.4
2007-11-24 10:55:21 -07:00
/*
* Copyright © 2006 Keith Packard
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that copyright
* notice and this permission notice appear in supporting documentation, and
* that the name of the copyright holders not be used in advertising or
* publicity pertaining to distribution of the software without specific,
* written prior permission. The copyright holders make no representations
* about the suitability of this software for any purpose. It is provided "as
* is" without express or implied warranty.
*
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
* OF THIS SOFTWARE.
*/
#ifdef HAVE_XORG_CONFIG_H
#include <xorg-config.h>
#else
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#endif
#include <stddef.h>
#include <string.h>
#include <stdio.h>
#include "xf86.h"
#include "xf86DDC.h"
#include "xf86Crtc.h"
#include "xf86Modes.h"
#include "xf86RandR12.h"
#include "X11/extensions/render.h"
#define DPMS_SERVER
#include "X11/extensions/dpms.h"
#include "X11/Xatom.h"
#ifdef RENDER
#include "picturestr.h"
#endif
#include "xf86xv.h"
/*
* Initialize xf86CrtcConfig structure
*/
int xf86CrtcConfigPrivateIndex = -1;
_X_EXPORT void
xf86CrtcConfigInit (ScrnInfoPtr scrn,
const xf86CrtcConfigFuncsRec *funcs)
{
xf86CrtcConfigPtr config;
if (xf86CrtcConfigPrivateIndex == -1)
xf86CrtcConfigPrivateIndex = xf86AllocateScrnInfoPrivateIndex();
config = xnfcalloc (1, sizeof (xf86CrtcConfigRec));
config->funcs = funcs;
scrn->privates[xf86CrtcConfigPrivateIndex].ptr = config;
}
_X_EXPORT void
xf86CrtcSetSizeRange (ScrnInfoPtr scrn,
int minWidth, int minHeight,
int maxWidth, int maxHeight)
{
xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(scrn);
config->minWidth = minWidth;
config->minHeight = minHeight;
config->maxWidth = maxWidth;
config->maxHeight = maxHeight;
}
/*
* Crtc functions
*/
_X_EXPORT xf86CrtcPtr
xf86CrtcCreate (ScrnInfoPtr scrn,
const xf86CrtcFuncsRec *funcs)
{
xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(scrn);
xf86CrtcPtr crtc, *crtcs;
crtc = xcalloc (sizeof (xf86CrtcRec), 1);
if (!crtc)
return NULL;
crtc->scrn = scrn;
crtc->funcs = funcs;
#ifdef RANDR_12_INTERFACE
crtc->randr_crtc = NULL;
#endif
crtc->rotation = RR_Rotate_0;
crtc->desiredRotation = RR_Rotate_0;
if (xf86_config->crtc)
crtcs = xrealloc (xf86_config->crtc,
(xf86_config->num_crtc + 1) * sizeof (xf86CrtcPtr));
else
crtcs = xalloc ((xf86_config->num_crtc + 1) * sizeof (xf86CrtcPtr));
if (!crtcs)
{
xfree (crtc);
return NULL;
}
xf86_config->crtc = crtcs;
xf86_config->crtc[xf86_config->num_crtc++] = crtc;
return crtc;
}
_X_EXPORT void
xf86CrtcDestroy (xf86CrtcPtr crtc)
{
xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(crtc->scrn);
int c;
(*crtc->funcs->destroy) (crtc);
for (c = 0; c < xf86_config->num_crtc; c++)
if (xf86_config->crtc[c] == crtc)
{
memmove (&xf86_config->crtc[c],
&xf86_config->crtc[c+1],
((xf86_config->num_crtc - (c + 1)) * sizeof(void*)));
xf86_config->num_crtc--;
break;
}
xfree (crtc);
}
/**
* Return whether any outputs are connected to the specified pipe
*/
_X_EXPORT Bool
xf86CrtcInUse (xf86CrtcPtr crtc)
{
ScrnInfoPtr pScrn = crtc->scrn;
xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(pScrn);
int o;
for (o = 0; o < xf86_config->num_output; o++)
if (xf86_config->output[o]->crtc == crtc)
return TRUE;
return FALSE;
}
_X_EXPORT void
xf86CrtcSetScreenSubpixelOrder (ScreenPtr pScreen)
{
#ifdef RENDER
int subpixel_order = SubPixelUnknown;
Bool has_none = FALSE;
ScrnInfoPtr scrn = xf86Screens[pScreen->myNum];
xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(scrn);
int c, o;
for (c = 0; c < xf86_config->num_crtc; c++)
{
xf86CrtcPtr crtc = xf86_config->crtc[c];
for (o = 0; o < xf86_config->num_output; o++)
{
xf86OutputPtr output = xf86_config->output[o];
if (output->crtc == crtc)
{
switch (output->subpixel_order) {
case SubPixelNone:
has_none = TRUE;
break;
case SubPixelUnknown:
break;
default:
subpixel_order = output->subpixel_order;
break;
}
}
if (subpixel_order != SubPixelUnknown)
break;
}
if (subpixel_order != SubPixelUnknown)
{
static const int circle[4] = {
SubPixelHorizontalRGB,
SubPixelVerticalRGB,
SubPixelHorizontalBGR,
SubPixelVerticalBGR,
};
int rotate;
int c;
for (rotate = 0; rotate < 4; rotate++)
if (crtc->rotation & (1 << rotate))
break;
for (c = 0; c < 4; c++)
if (circle[c] == subpixel_order)
break;
c = (c + rotate) & 0x3;
if ((crtc->rotation & RR_Reflect_X) && !(c & 1))
c ^= 2;
if ((crtc->rotation & RR_Reflect_Y) && (c & 1))
c ^= 2;
subpixel_order = circle[c];
break;
}
}
if (subpixel_order == SubPixelUnknown && has_none)
subpixel_order = SubPixelNone;
PictureSetSubpixelOrder (pScreen, subpixel_order);
#endif
}
/**
* Sets the given video mode on the given crtc
*/
_X_EXPORT Bool
xf86CrtcSetMode (xf86CrtcPtr crtc, DisplayModePtr mode, Rotation rotation,
int x, int y)
{
ScrnInfoPtr scrn = crtc->scrn;
xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(scrn);
int i;
Bool ret = FALSE;
Bool didLock = FALSE;
DisplayModePtr adjusted_mode;
DisplayModeRec saved_mode;
int saved_x, saved_y;
Rotation saved_rotation;
crtc->enabled = xf86CrtcInUse (crtc);
if (!crtc->enabled)
{
/* XXX disable crtc? */
return TRUE;
}
adjusted_mode = xf86DuplicateMode(mode);
didLock = crtc->funcs->lock (crtc);
saved_mode = crtc->mode;
saved_x = crtc->x;
saved_y = crtc->y;
saved_rotation = crtc->rotation;
/* Update crtc values up front so the driver can rely on them for mode
* setting.
*/
crtc->mode = *mode;
crtc->x = x;
crtc->y = y;
crtc->rotation = rotation;
/* XXX short-circuit changes to base location only */
/* Pass our mode to the outputs and the CRTC to give them a chance to
* adjust it according to limitations or output properties, and also
* a chance to reject the mode entirely.
*/
for (i = 0; i < xf86_config->num_output; i++) {
xf86OutputPtr output = xf86_config->output[i];
if (output->crtc != crtc)
continue;
if (!output->funcs->mode_fixup(output, mode, adjusted_mode)) {
goto done;
}
}
if (!crtc->funcs->mode_fixup(crtc, mode, adjusted_mode)) {
goto done;
}
if (!xf86CrtcRotate (crtc, mode, rotation)) {
goto done;
}
/* Prepare the outputs and CRTCs before setting the mode. */
for (i = 0; i < xf86_config->num_output; i++) {
xf86OutputPtr output = xf86_config->output[i];
if (output->crtc != crtc)
continue;
/* Disable the output as the first thing we do. */
output->funcs->prepare(output);
}
crtc->funcs->prepare(crtc);
/* Set up the DPLL and any output state that needs to adjust or depend
* on the DPLL.
*/
crtc->funcs->mode_set(crtc, mode, adjusted_mode, x, y);
for (i = 0; i < xf86_config->num_output; i++)
{
xf86OutputPtr output = xf86_config->output[i];
if (output->crtc == crtc)
output->funcs->mode_set(output, mode, adjusted_mode);
}
/* Now, enable the clocks, plane, pipe, and outputs that we set up. */
crtc->funcs->commit(crtc);
for (i = 0; i < xf86_config->num_output; i++)
{
xf86OutputPtr output = xf86_config->output[i];
if (output->crtc == crtc)
{
output->funcs->commit(output);
#ifdef RANDR_12_INTERFACE
if (output->randr_output)
RRPostPendingProperties (output->randr_output);
#endif
}
}
/* XXX free adjustedmode */
ret = TRUE;
if (scrn->pScreen)
xf86CrtcSetScreenSubpixelOrder (scrn->pScreen);
done:
if (!ret) {
crtc->x = saved_x;
crtc->y = saved_y;
crtc->rotation = saved_rotation;
crtc->mode = saved_mode;
}
if (didLock)
crtc->funcs->unlock (crtc);
return ret;
}
/*
* Output functions
*/
extern XF86ConfigPtr xf86configptr;
typedef enum {
OPTION_PREFERRED_MODE,
OPTION_POSITION,
OPTION_BELOW,
OPTION_RIGHT_OF,
OPTION_ABOVE,
OPTION_LEFT_OF,
OPTION_ENABLE,
OPTION_DISABLE,
OPTION_MIN_CLOCK,
OPTION_MAX_CLOCK,
OPTION_IGNORE,
OPTION_ROTATE,
} OutputOpts;
static OptionInfoRec xf86OutputOptions[] = {
{OPTION_PREFERRED_MODE, "PreferredMode", OPTV_STRING, {0}, FALSE },
{OPTION_POSITION, "Position", OPTV_STRING, {0}, FALSE },
{OPTION_BELOW, "Below", OPTV_STRING, {0}, FALSE },
{OPTION_RIGHT_OF, "RightOf", OPTV_STRING, {0}, FALSE },
{OPTION_ABOVE, "Above", OPTV_STRING, {0}, FALSE },
{OPTION_LEFT_OF, "LeftOf", OPTV_STRING, {0}, FALSE },
{OPTION_ENABLE, "Enable", OPTV_BOOLEAN, {0}, FALSE },
{OPTION_DISABLE, "Disable", OPTV_BOOLEAN, {0}, FALSE },
{OPTION_MIN_CLOCK, "MinClock", OPTV_FREQ, {0}, FALSE },
{OPTION_MAX_CLOCK, "MaxClock", OPTV_FREQ, {0}, FALSE },
{OPTION_IGNORE, "Ignore", OPTV_BOOLEAN, {0}, FALSE },
{OPTION_ROTATE, "Rotate", OPTV_STRING, {0}, FALSE },
{-1, NULL, OPTV_NONE, {0}, FALSE },
};
enum {
OPTION_MODEDEBUG,
};
static OptionInfoRec xf86DeviceOptions[] = {
{OPTION_MODEDEBUG, "ModeDebug", OPTV_STRING, {0}, FALSE },
{-1, NULL, OPTV_NONE, {0}, FALSE },
};
static void
xf86OutputSetMonitor (xf86OutputPtr output)
{
char *option_name;
static const char monitor_prefix[] = "monitor-";
char *monitor;
if (!output->name)
return;
if (output->options)
xfree (output->options);
output->options = xnfalloc (sizeof (xf86OutputOptions));
memcpy (output->options, xf86OutputOptions, sizeof (xf86OutputOptions));
option_name = xnfalloc (strlen (monitor_prefix) +
strlen (output->name) + 1);
strcpy (option_name, monitor_prefix);
strcat (option_name, output->name);
monitor = xf86findOptionValue (output->scrn->options, option_name);
if (!monitor)
monitor = output->name;
else
xf86MarkOptionUsedByName (output->scrn->options, option_name);
xfree (option_name);
output->conf_monitor = xf86findMonitor (monitor,
xf86configptr->conf_monitor_lst);
/*
* Find the monitor section of the screen and use that
*/
if (!output->conf_monitor && output->use_screen_monitor)
output->conf_monitor = xf86findMonitor (output->scrn->monitor->id,
xf86configptr->conf_monitor_lst);
if (output->conf_monitor)
{
xf86DrvMsg (output->scrn->scrnIndex, X_INFO,
"Output %s using monitor section %s\n",
output->name, output->conf_monitor->mon_identifier);
xf86ProcessOptions (output->scrn->scrnIndex,
output->conf_monitor->mon_option_lst,
output->options);
}
else
xf86DrvMsg (output->scrn->scrnIndex, X_INFO,
"Output %s has no monitor section\n",
output->name);
}
static Bool
xf86OutputEnabled (xf86OutputPtr output)
{
Bool enable, disable;
/* check to see if this output was enabled in the config file */
if (xf86GetOptValBool (output->options, OPTION_ENABLE, &enable) && enable)
{
xf86DrvMsg (output->scrn->scrnIndex, X_INFO,
"Output %s enabled by config file\n", output->name);
return TRUE;
}
/* or if this output was disabled in the config file */
if (xf86GetOptValBool (output->options, OPTION_DISABLE, &disable) && disable)
{
xf86DrvMsg (output->scrn->scrnIndex, X_INFO,
"Output %s disabled by config file\n", output->name);
return FALSE;
}
/* otherwise, enable if it is not disconnected */
enable = output->status != XF86OutputStatusDisconnected;
xf86DrvMsg (output->scrn->scrnIndex, X_INFO,
"Output %s %sconnected\n", output->name, enable ? "" : "dis");
return enable;
}
static Bool
xf86OutputIgnored (xf86OutputPtr output)
{
return xf86ReturnOptValBool (output->options, OPTION_IGNORE, FALSE);
}
static char *direction[4] = {
"normal",
"left",
"inverted",
"right"
};
static Rotation
xf86OutputInitialRotation (xf86OutputPtr output)
{
char *rotate_name = xf86GetOptValString (output->options,
OPTION_ROTATE);
int i;
if (!rotate_name)
return RR_Rotate_0;
for (i = 0; i < 4; i++)
if (xf86nameCompare (direction[i], rotate_name) == 0)
return (1 << i);
return RR_Rotate_0;
}
_X_EXPORT xf86OutputPtr
xf86OutputCreate (ScrnInfoPtr scrn,
const xf86OutputFuncsRec *funcs,
const char *name)
{
xf86OutputPtr output, *outputs;
xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(scrn);
int len;
if (name)
len = strlen (name) + 1;
else
len = 0;
output = xcalloc (sizeof (xf86OutputRec) + len, 1);
if (!output)
return NULL;
output->scrn = scrn;
output->funcs = funcs;
if (name)
{
output->name = (char *) (output + 1);
strcpy (output->name, name);
}
output->subpixel_order = SubPixelUnknown;
/*
* Use the old per-screen monitor section for the first output
*/
output->use_screen_monitor = (xf86_config->num_output == 0);
#ifdef RANDR_12_INTERFACE
output->randr_output = NULL;
#endif
if (name)
{
xf86OutputSetMonitor (output);
if (xf86OutputIgnored (output))
{
xfree (output);
return FALSE;
}
}
if (xf86_config->output)
outputs = xrealloc (xf86_config->output,
(xf86_config->num_output + 1) * sizeof (xf86OutputPtr));
else
outputs = xalloc ((xf86_config->num_output + 1) * sizeof (xf86OutputPtr));
if (!outputs)
{
xfree (output);
return NULL;
}
xf86_config->output = outputs;
xf86_config->output[xf86_config->num_output++] = output;
return output;
}
_X_EXPORT Bool
xf86OutputRename (xf86OutputPtr output, const char *name)
{
int len = strlen(name) + 1;
char *newname = xalloc (len);
if (!newname)
return FALSE; /* so sorry... */
strcpy (newname, name);
if (output->name && output->name != (char *) (output + 1))
xfree (output->name);
output->name = newname;
xf86OutputSetMonitor (output);
if (xf86OutputIgnored (output))
return FALSE;
return TRUE;
}
_X_EXPORT void
xf86OutputUseScreenMonitor (xf86OutputPtr output, Bool use_screen_monitor)
{
if (use_screen_monitor != output->use_screen_monitor)
{
output->use_screen_monitor = use_screen_monitor;
xf86OutputSetMonitor (output);
}
}
_X_EXPORT void
xf86OutputDestroy (xf86OutputPtr output)
{
ScrnInfoPtr scrn = output->scrn;
xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(scrn);
int o;
(*output->funcs->destroy) (output);
while (output->probed_modes)
xf86DeleteMode (&output->probed_modes, output->probed_modes);
for (o = 0; o < xf86_config->num_output; o++)
if (xf86_config->output[o] == output)
{
memmove (&xf86_config->output[o],
&xf86_config->output[o+1],
((xf86_config->num_output - (o + 1)) * sizeof(void*)));
xf86_config->num_output--;
break;
}
if (output->name && output->name != (char *) (output + 1))
xfree (output->name);
xfree (output);
}
/*
* Called during CreateScreenResources to hook up RandR
*/
static Bool
xf86CrtcCreateScreenResources (ScreenPtr screen)
{
ScrnInfoPtr scrn = xf86Screens[screen->myNum];
xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(scrn);
screen->CreateScreenResources = config->CreateScreenResources;
if (!(*screen->CreateScreenResources)(screen))
return FALSE;
if (!xf86RandR12CreateScreenResources (screen))
return FALSE;
return TRUE;
}
/*
* Clean up config on server reset
*/
static Bool
xf86CrtcCloseScreen (int index, ScreenPtr screen)
{
ScrnInfoPtr scrn = xf86Screens[screen->myNum];
xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(scrn);
int o, c;
screen->CloseScreen = config->CloseScreen;
xf86RotateCloseScreen (screen);
for (o = 0; o < config->num_output; o++)
{
xf86OutputPtr output = config->output[o];
output->randr_output = NULL;
}
for (c = 0; c < config->num_crtc; c++)
{
xf86CrtcPtr crtc = config->crtc[c];
crtc->randr_crtc = NULL;
}
return screen->CloseScreen (index, screen);
}
/*
* Called at ScreenInit time to set up
*/
_X_EXPORT Bool
xf86CrtcScreenInit (ScreenPtr screen)
{
ScrnInfoPtr scrn = xf86Screens[screen->myNum];
xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(scrn);
int c;
/* Rotation */
xf86DrvMsg(scrn->scrnIndex, X_INFO, "RandR 1.2 enabled, ignore the following RandR disabled message.\n");
xf86DisableRandR(); /* Disable old RandR extension support */
xf86RandR12Init (screen);
/* support all rotations if every crtc has the shadow alloc funcs */
for (c = 0; c < config->num_crtc; c++)
{
xf86CrtcPtr crtc = config->crtc[c];
if (!crtc->funcs->shadow_allocate || !crtc->funcs->shadow_create)
break;
}
if (c == config->num_crtc)
xf86RandR12SetRotations (screen, RR_Rotate_0 | RR_Rotate_90 |
RR_Rotate_180 | RR_Rotate_270 |
RR_Reflect_X | RR_Reflect_Y);
else
xf86RandR12SetRotations (screen, RR_Rotate_0);
/* Wrap CreateScreenResources so we can initialize the RandR code */
config->CreateScreenResources = screen->CreateScreenResources;
screen->CreateScreenResources = xf86CrtcCreateScreenResources;
config->CloseScreen = screen->CloseScreen;
screen->CloseScreen = xf86CrtcCloseScreen;
return TRUE;
}
static DisplayModePtr
xf86DefaultMode (xf86OutputPtr output, int width, int height)
{
DisplayModePtr target_mode = NULL;
DisplayModePtr mode;
int target_diff = 0;
int target_preferred = 0;
int mm_height;
mm_height = output->mm_height;
if (!mm_height)
mm_height = 203; /* 768 pixels at 96dpi */
/*
* Pick a mode closest to 96dpi
*/
for (mode = output->probed_modes; mode; mode = mode->next)
{
int dpi;
int preferred = (mode->type & M_T_PREFERRED) != 0;
int diff;
if (xf86ModeWidth (mode, output->initial_rotation) > width ||
xf86ModeHeight (mode, output->initial_rotation) > height)
continue;
/* yes, use VDisplay here, not xf86ModeHeight */
dpi = (mode->VDisplay * 254) / (mm_height * 10);
diff = dpi - 96;
diff = diff < 0 ? -diff : diff;
if (target_mode == NULL || (preferred > target_preferred) ||
(preferred == target_preferred && diff < target_diff))
{
target_mode = mode;
target_diff = diff;
target_preferred = preferred;
}
}
return target_mode;
}
static DisplayModePtr
xf86ClosestMode (xf86OutputPtr output,
DisplayModePtr match, Rotation match_rotation,
int width, int height)
{
DisplayModePtr target_mode = NULL;
DisplayModePtr mode;
int target_diff = 0;
/*
* Pick a mode closest to the specified mode
*/
for (mode = output->probed_modes; mode; mode = mode->next)
{
int dx, dy;
int diff;
if (xf86ModeWidth (mode, output->initial_rotation) > width ||
xf86ModeHeight (mode, output->initial_rotation) > height)
continue;
/* exact matches are preferred */
if (output->initial_rotation == match_rotation &&
xf86ModesEqual (mode, match))
return mode;
dx = xf86ModeWidth (match, match_rotation) - xf86ModeWidth (mode, output->initial_rotation);
dy = xf86ModeHeight (match, match_rotation) - xf86ModeHeight (mode, output->initial_rotation);
diff = dx * dx + dy * dy;
if (target_mode == NULL || diff < target_diff)
{
target_mode = mode;
target_diff = diff;
}
}
return target_mode;
}
static Bool
xf86OutputHasPreferredMode (xf86OutputPtr output, int width, int height)
{
DisplayModePtr mode;
for (mode = output->probed_modes; mode; mode = mode->next)
{
if (xf86ModeWidth (mode, output->initial_rotation) > width ||
xf86ModeHeight (mode, output->initial_rotation) > height)
continue;
if (mode->type & M_T_PREFERRED)
return TRUE;
}
return FALSE;
}
static int
xf86PickCrtcs (ScrnInfoPtr scrn,
xf86CrtcPtr *best_crtcs,
DisplayModePtr *modes,
int n,
int width,
int height)
{
xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(scrn);
int c, o;
xf86OutputPtr output;
xf86CrtcPtr crtc;
xf86CrtcPtr *crtcs;
xf86CrtcPtr best_crtc;
int best_score;
int score;
int my_score;
if (n == config->num_output)
return 0;
output = config->output[n];
/*
* Compute score with this output disabled
*/
best_crtcs[n] = NULL;
best_crtc = NULL;
best_score = xf86PickCrtcs (scrn, best_crtcs, modes, n+1, width, height);
if (modes[n] == NULL)
return best_score;
crtcs = xalloc (config->num_output * sizeof (xf86CrtcPtr));
if (!crtcs)
return best_score;
my_score = 1;
/* Score outputs that are known to be connected higher */
if (output->status == XF86OutputStatusConnected)
my_score++;
/* Score outputs with preferred modes higher */
if (xf86OutputHasPreferredMode (output, width, height))
my_score++;
/*
* Select a crtc for this output and
* then attempt to configure the remaining
* outputs
*/
for (c = 0; c < config->num_crtc; c++)
{
if ((output->possible_crtcs & (1 << c)) == 0)
continue;
crtc = config->crtc[c];
/*
* Check to see if some other output is
* using this crtc
*/
for (o = 0; o < n; o++)
if (best_crtcs[o] == crtc)
break;
if (o < n)
{
/*
* If the two outputs desire the same mode,
* see if they can be cloned
*/
if (xf86ModesEqual (modes[o], modes[n]) &&
config->output[0]->initial_rotation == config->output[n]->initial_rotation &&
config->output[o]->initial_x == config->output[n]->initial_x &&
config->output[o]->initial_y == config->output[n]->initial_y)
{
if ((output->possible_clones & (1 << o)) == 0)
continue; /* nope, try next CRTC */
}
else
continue; /* different modes, can't clone */
}
crtcs[n] = crtc;
memcpy (crtcs, best_crtcs, n * sizeof (xf86CrtcPtr));
score = my_score + xf86PickCrtcs (scrn, crtcs, modes, n+1, width, height);
if (score > best_score)
{
best_crtc = crtc;
best_score = score;
memcpy (best_crtcs, crtcs, config->num_output * sizeof (xf86CrtcPtr));
}
}
xfree (crtcs);
return best_score;
}
/*
* Compute the virtual size necessary to place all of the available
* crtcs in the specified configuration.
*
* canGrow indicates that the driver can make the screen larger than its initial
* configuration. If FALSE, this function will enlarge the screen to include
* the largest available mode.
*/
static void
xf86DefaultScreenLimits (ScrnInfoPtr scrn, int *widthp, int *heightp,
Bool canGrow)
{
xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(scrn);
int width = 0, height = 0;
int o;
int c;
int s;
for (c = 0; c < config->num_crtc; c++)
{
int crtc_width = 0, crtc_height = 0;
xf86CrtcPtr crtc = config->crtc[c];
if (crtc->enabled)
{
crtc_width = crtc->x + xf86ModeWidth (&crtc->desiredMode, crtc->desiredRotation);
crtc_height = crtc->y + xf86ModeHeight (&crtc->desiredMode, crtc->desiredRotation);
}
if (!canGrow) {
for (o = 0; o < config->num_output; o++)
{
xf86OutputPtr output = config->output[o];
for (s = 0; s < config->num_crtc; s++)
if (output->possible_crtcs & (1 << s))
{
DisplayModePtr mode;
for (mode = output->probed_modes; mode; mode = mode->next)
{
if (mode->HDisplay > crtc_width)
crtc_width = mode->HDisplay;
if (mode->VDisplay > crtc_width)
crtc_width = mode->VDisplay;
if (mode->VDisplay > crtc_height)
crtc_height = mode->VDisplay;
if (mode->HDisplay > crtc_height)
crtc_height = mode->HDisplay;
}
}
}
}
if (crtc_width > width)
width = crtc_width;
if (crtc_height > height)
height = crtc_height;
}
if (config->maxWidth && width > config->maxWidth) width = config->maxWidth;
if (config->maxHeight && height > config->maxHeight) height = config->maxHeight;
if (config->minWidth && width < config->minWidth) width = config->minWidth;
if (config->minHeight && height < config->minHeight) height = config->minHeight;
*widthp = width;
*heightp = height;
}
#define POSITION_UNSET -100000
static Bool
xf86InitialOutputPositions (ScrnInfoPtr scrn, DisplayModePtr *modes)
{
xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(scrn);
int o;
int min_x, min_y;
for (o = 0; o < config->num_output; o++)
{
xf86OutputPtr output = config->output[o];
output->initial_x = output->initial_y = POSITION_UNSET;
}
/*
* Loop until all outputs are set
*/
for (;;)
{
Bool any_set = FALSE;
Bool keep_going = FALSE;
for (o = 0; o < config->num_output; o++)
{
static const OutputOpts relations[] = {
OPTION_BELOW, OPTION_RIGHT_OF, OPTION_ABOVE, OPTION_LEFT_OF
};
xf86OutputPtr output = config->output[o];
xf86OutputPtr relative;
char *relative_name;
char *position;
OutputOpts relation;
int r;
if (output->initial_x != POSITION_UNSET)
continue;
position = xf86GetOptValString (output->options,
OPTION_POSITION);
/*
* Absolute position wins
*/
if (position)
{
int x, y;
if (sscanf (position, "%d %d", &x, &y) == 2)
{
output->initial_x = x;
output->initial_y = y;
}
else
{
xf86DrvMsg (scrn->scrnIndex, X_ERROR,
"Output %s position not of form \"x y\"\n",
output->name);
output->initial_x = output->initial_y = 0;
}
any_set = TRUE;
continue;
}
/*
* Next comes relative positions
*/
relation = 0;
relative_name = NULL;
for (r = 0; r < 4; r++)
{
relation = relations[r];
relative_name = xf86GetOptValString (output->options,
relation);
if (relative_name)
break;
}
if (relative_name)
{
int or;
relative = NULL;
for (or = 0; or < config->num_output; or++)
{
xf86OutputPtr out_rel = config->output[or];
XF86ConfMonitorPtr rel_mon = out_rel->conf_monitor;
if (rel_mon)
{
if (xf86nameCompare (rel_mon->mon_identifier,
relative_name) == 0)
{
relative = config->output[or];
break;
}
}
if (strcmp (out_rel->name, relative_name) == 0)
{
relative = config->output[or];
break;
}
}
if (!relative)
{
xf86DrvMsg (scrn->scrnIndex, X_ERROR,
"Cannot position output %s relative to unknown output %s\n",
output->name, relative_name);
output->initial_x = 0;
output->initial_y = 0;
any_set = TRUE;
continue;
}
if (relative->initial_x == POSITION_UNSET)
{
keep_going = TRUE;
continue;
}
output->initial_x = relative->initial_x;
output->initial_y = relative->initial_y;
switch (relation) {
case OPTION_BELOW:
output->initial_y += xf86ModeHeight (modes[or], relative->initial_rotation);
break;
case OPTION_RIGHT_OF:
output->initial_x += xf86ModeWidth (modes[or], relative->initial_rotation);
break;
case OPTION_ABOVE:
output->initial_y -= xf86ModeHeight (modes[or], relative->initial_rotation);
break;
case OPTION_LEFT_OF:
output->initial_x -= xf86ModeWidth (modes[or], relative->initial_rotation);
break;
default:
break;
}
any_set = TRUE;
continue;
}
/* Nothing set, just stick them at 0,0 */
output->initial_x = 0;
output->initial_y = 0;
any_set = TRUE;
}
if (!keep_going)
break;
if (!any_set)
{
for (o = 0; o < config->num_output; o++)
{
xf86OutputPtr output = config->output[o];
if (output->initial_x == POSITION_UNSET)
{
xf86DrvMsg (scrn->scrnIndex, X_ERROR,
"Output position loop. Moving %s to 0,0\n",
output->name);
output->initial_x = output->initial_y = 0;
break;
}
}
}
}
/*
* normalize positions
*/
min_x = 1000000;
min_y = 1000000;
for (o = 0; o < config->num_output; o++)
{
xf86OutputPtr output = config->output[o];
if (output->initial_x < min_x)
min_x = output->initial_x;
if (output->initial_y < min_y)
min_y = output->initial_y;
}
for (o = 0; o < config->num_output; o++)
{
xf86OutputPtr output = config->output[o];
output->initial_x -= min_x;
output->initial_y -= min_y;
}
return TRUE;
}
/*
* XXX walk the monitor mode list and prune out duplicates that
* are inserted by xf86DDCMonitorSet. In an ideal world, that
* function would do this work by itself.
*/
static void
xf86PruneDuplicateMonitorModes (MonPtr Monitor)
{
DisplayModePtr master, clone, next;
for (master = Monitor->Modes;
master && master != Monitor->Last;
master = master->next)
{
for (clone = master->next; clone && clone != Monitor->Modes; clone = next)
{
next = clone->next;
if (xf86ModesEqual (master, clone))
{
if (Monitor->Last == clone)
Monitor->Last = clone->prev;
xf86DeleteMode (&Monitor->Modes, clone);
}
}
}
}
/** Return - 0 + if a should be earlier, same or later than b in list
*/
static int
xf86ModeCompare (DisplayModePtr a, DisplayModePtr b)
{
int diff;
diff = ((b->type & M_T_PREFERRED) != 0) - ((a->type & M_T_PREFERRED) != 0);
if (diff)
return diff;
diff = b->HDisplay * b->VDisplay - a->HDisplay * a->VDisplay;
if (diff)
return diff;
diff = b->Clock - a->Clock;
return diff;
}
/**
* Insertion sort input in-place and return the resulting head
*/
static DisplayModePtr
xf86SortModes (DisplayModePtr input)
{
DisplayModePtr output = NULL, i, o, n, *op, prev;
/* sort by preferred status and pixel area */
while (input)
{
i = input;
input = input->next;
for (op = &output; (o = *op); op = &o->next)
if (xf86ModeCompare (o, i) > 0)
break;
i->next = *op;
*op = i;
}
/* prune identical modes */
for (o = output; o && (n = o->next); o = n)
{
if (!strcmp (o->name, n->name) && xf86ModesEqual (o, n))
{
o->next = n->next;
xfree (n->name);
xfree (n);
n = o;
}
}
/* hook up backward links */
prev = NULL;
for (o = output; o; o = o->next)
{
o->prev = prev;
prev = o;
}
return output;
}
_X_EXPORT void
xf86ProbeOutputModes (ScrnInfoPtr scrn, int maxX, int maxY)
{
xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(scrn);
int o;
/* When canGrow was TRUE in the initial configuration we have to
* compare against the maximum values so that we don't drop modes.
* When canGrow was FALSE, the maximum values would have been clamped
* anyway.
*/
if (maxX == 0 || maxY == 0) {
maxX = config->maxWidth;
maxY = config->maxHeight;
}
/* Elide duplicate modes before defaulting code uses them */
xf86PruneDuplicateMonitorModes (scrn->monitor);
/* Probe the list of modes for each output. */
for (o = 0; o < config->num_output; o++)
{
xf86OutputPtr output = config->output[o];
DisplayModePtr mode;
DisplayModePtr config_modes = NULL, output_modes, default_modes;
char *preferred_mode;
xf86MonPtr edid_monitor;
XF86ConfMonitorPtr conf_monitor;
MonRec mon_rec;
int min_clock = 0;
int max_clock = 0;
double clock;
enum { sync_config, sync_edid, sync_default } sync_source = sync_default;
while (output->probed_modes != NULL)
xf86DeleteMode(&output->probed_modes, output->probed_modes);
/*
* Check connection status
*/
output->status = (*output->funcs->detect)(output);
if (output->status == XF86OutputStatusDisconnected)
{
xf86OutputSetEDID (output, NULL);
continue;
}
memset (&mon_rec, '\0', sizeof (mon_rec));
conf_monitor = output->conf_monitor;
if (conf_monitor)
{
int i;
for (i = 0; i < conf_monitor->mon_n_hsync; i++)
{
mon_rec.hsync[mon_rec.nHsync].lo = conf_monitor->mon_hsync[i].lo;
mon_rec.hsync[mon_rec.nHsync].hi = conf_monitor->mon_hsync[i].hi;
mon_rec.nHsync++;
sync_source = sync_config;
}
for (i = 0; i < conf_monitor->mon_n_vrefresh; i++)
{
mon_rec.vrefresh[mon_rec.nVrefresh].lo = conf_monitor->mon_vrefresh[i].lo;
mon_rec.vrefresh[mon_rec.nVrefresh].hi = conf_monitor->mon_vrefresh[i].hi;
mon_rec.nVrefresh++;
sync_source = sync_config;
}
config_modes = xf86GetMonitorModes (scrn, conf_monitor);
}
output_modes = (*output->funcs->get_modes) (output);
edid_monitor = output->MonInfo;
if (edid_monitor)
{
int i;
Bool set_hsync = mon_rec.nHsync == 0;
Bool set_vrefresh = mon_rec.nVrefresh == 0;
for (i = 0; i < sizeof (edid_monitor->det_mon) / sizeof (edid_monitor->det_mon[0]); i++)
{
if (edid_monitor->det_mon[i].type == DS_RANGES)
{
struct monitor_ranges *ranges = &edid_monitor->det_mon[i].section.ranges;
if (set_hsync && ranges->max_h)
{
mon_rec.hsync[mon_rec.nHsync].lo = ranges->min_h;
mon_rec.hsync[mon_rec.nHsync].hi = ranges->max_h;
mon_rec.nHsync++;
if (sync_source == sync_default)
sync_source = sync_edid;
}
if (set_vrefresh && ranges->max_v)
{
mon_rec.vrefresh[mon_rec.nVrefresh].lo = ranges->min_v;
mon_rec.vrefresh[mon_rec.nVrefresh].hi = ranges->max_v;
mon_rec.nVrefresh++;
if (sync_source == sync_default)
sync_source = sync_edid;
}
if (ranges->max_clock > max_clock)
max_clock = ranges->max_clock;
}
}
}
if (xf86GetOptValFreq (output->options, OPTION_MIN_CLOCK,
OPTUNITS_KHZ, &clock))
min_clock = (int) clock;
if (xf86GetOptValFreq (output->options, OPTION_MAX_CLOCK,
OPTUNITS_KHZ, &clock))
max_clock = (int) clock;
/*
* These limits will end up setting a 1024x768@60Hz mode by default,
* which seems like a fairly good mode to use when nothing else is
* specified
*/
if (mon_rec.nHsync == 0)
{
mon_rec.hsync[0].lo = 31.0;
mon_rec.hsync[0].hi = 55.0;
mon_rec.nHsync = 1;
}
if (mon_rec.nVrefresh == 0)
{
mon_rec.vrefresh[0].lo = 58.0;
mon_rec.vrefresh[0].hi = 62.0;
mon_rec.nVrefresh = 1;
}
default_modes = xf86GetDefaultModes (output->interlaceAllowed,
output->doubleScanAllowed);
if (sync_source == sync_config)
{
/*
* Check output and config modes against sync range from config file
*/
xf86ValidateModesSync (scrn, output_modes, &mon_rec);
xf86ValidateModesSync (scrn, config_modes, &mon_rec);
}
/*
* Check default modes against sync range
*/
xf86ValidateModesSync (scrn, default_modes, &mon_rec);
/*
* Check default modes against monitor max clock
*/
if (max_clock)
xf86ValidateModesClocks(scrn, default_modes,
&min_clock, &max_clock, 1);
output->probed_modes = NULL;
output->probed_modes = xf86ModesAdd (output->probed_modes, config_modes);
output->probed_modes = xf86ModesAdd (output->probed_modes, output_modes);
output->probed_modes = xf86ModesAdd (output->probed_modes, default_modes);
/*
* Check all modes against max size
*/
if (maxX && maxY)
xf86ValidateModesSize (scrn, output->probed_modes,
maxX, maxY, 0);
/*
* Check all modes against output
*/
for (mode = output->probed_modes; mode != NULL; mode = mode->next)
if (mode->status == MODE_OK)
mode->status = (*output->funcs->mode_valid)(output, mode);
xf86PruneInvalidModes(scrn, &output->probed_modes,
config->debug_modes);
output->probed_modes = xf86SortModes (output->probed_modes);
/* Check for a configured preference for a particular mode */
preferred_mode = xf86GetOptValString (output->options,
OPTION_PREFERRED_MODE);
if (preferred_mode)
{
for (mode = output->probed_modes; mode; mode = mode->next)
{
if (!strcmp (preferred_mode, mode->name))
{
if (mode != output->probed_modes)
{
if (mode->prev)
mode->prev->next = mode->next;
if (mode->next)
mode->next->prev = mode->prev;
mode->next = output->probed_modes;
output->probed_modes->prev = mode;
mode->prev = NULL;
output->probed_modes = mode;
}
mode->type |= M_T_PREFERRED;
}
else
mode->type &= ~M_T_PREFERRED;
}
}
output->initial_rotation = xf86OutputInitialRotation (output);
if (config->debug_modes) {
if (output->probed_modes != NULL) {
xf86DrvMsg(scrn->scrnIndex, X_INFO,
"Printing probed modes for output %s\n",
output->name);
} else {
xf86DrvMsg(scrn->scrnIndex, X_INFO,
"No remaining probed modes for output %s\n",
output->name);
}
}
for (mode = output->probed_modes; mode != NULL; mode = mode->next)
{
/* The code to choose the best mode per pipe later on will require
* VRefresh to be set.
*/
mode->VRefresh = xf86ModeVRefresh(mode);
xf86SetModeCrtc(mode, INTERLACE_HALVE_V);
if (config->debug_modes)
xf86PrintModeline(scrn->scrnIndex, mode);
}
}
}
/**
* Copy one of the output mode lists to the ScrnInfo record
*/
/* XXX where does this function belong? Here? */
_X_EXPORT void
xf86RandR12GetOriginalVirtualSize(ScrnInfoPtr scrn, int *x, int *y);
_X_EXPORT void
xf86SetScrnInfoModes (ScrnInfoPtr scrn)
{
xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(scrn);
xf86OutputPtr output;
xf86CrtcPtr crtc;
DisplayModePtr last, mode;
output = config->output[config->compat_output];
if (!output->crtc)
{
int o;
output = NULL;
for (o = 0; o < config->num_output; o++)
if (config->output[o]->crtc)
{
config->compat_output = o;
output = config->output[o];
break;
}
/* no outputs are active, punt and leave things as they are */
if (!output)
return;
}
crtc = output->crtc;
/* Clear any existing modes from scrn->modes */
while (scrn->modes != NULL)
xf86DeleteMode(&scrn->modes, scrn->modes);
/* Set scrn->modes to the mode list for the 'compat' output */
scrn->modes = xf86DuplicateModes(scrn, output->probed_modes);
for (mode = scrn->modes; mode; mode = mode->next)
if (xf86ModesEqual (mode, &crtc->desiredMode))
break;
if (scrn->modes != NULL) {
/* For some reason, scrn->modes is circular, unlike the other mode
* lists. How great is that?
*/
for (last = scrn->modes; last && last->next; last = last->next)
;
last->next = scrn->modes;
scrn->modes->prev = last;
if (mode) {
while (scrn->modes != mode)
scrn->modes = scrn->modes->next;
}
}
scrn->currentMode = scrn->modes;
}
/**
* Construct default screen configuration
*
* Given auto-detected (and, eventually, configured) values,
* construct a usable configuration for the system
*
* canGrow indicates that the driver can resize the screen to larger than its
* initially configured size via the config->funcs->resize hook. If TRUE, this
* function will set virtualX and virtualY to match the initial configuration
* and leave config->max{Width,Height} alone. If FALSE, it will bloat
* virtual[XY] to include the largest modes and set config->max{Width,Height}
* accordingly.
*/
_X_EXPORT Bool
xf86InitialConfiguration (ScrnInfoPtr scrn, Bool canGrow)
{
xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(scrn);
int o, c;
DisplayModePtr target_mode = NULL;
Rotation target_rotation = RR_Rotate_0;
xf86CrtcPtr *crtcs;
DisplayModePtr *modes;
Bool *enabled;
int width;
int height;
/* Set up the device options */
config->options = xnfalloc (sizeof (xf86DeviceOptions));
memcpy (config->options, xf86DeviceOptions, sizeof (xf86DeviceOptions));
xf86ProcessOptions (scrn->scrnIndex,
scrn->options,
config->options);
config->debug_modes = xf86ReturnOptValBool (config->options,
OPTION_MODEDEBUG, FALSE);
if (scrn->display->virtualX)
width = scrn->display->virtualX;
else
width = config->maxWidth;
if (scrn->display->virtualY)
height = scrn->display->virtualY;
else
height = config->maxHeight;
xf86ProbeOutputModes (scrn, width, height);
crtcs = xnfcalloc (config->num_output, sizeof (xf86CrtcPtr));
modes = xnfcalloc (config->num_output, sizeof (DisplayModePtr));
enabled = xnfcalloc (config->num_output, sizeof (Bool));
for (o = 0; o < config->num_output; o++)
{
xf86OutputPtr output = config->output[o];
modes[o] = NULL;
enabled[o] = xf86OutputEnabled (output);
}
/*
* Let outputs with preferred modes drive screen size
*/
for (o = 0; o < config->num_output; o++)
{
xf86OutputPtr output = config->output[o];
if (enabled[o] &&
xf86OutputHasPreferredMode (output, width, height))
{
target_mode = xf86DefaultMode (output, width, height);
target_rotation = output->initial_rotation;
if (target_mode)
{
modes[o] = target_mode;
config->compat_output = o;
break;
}
}
}
if (!target_mode)
{
for (o = 0; o < config->num_output; o++)
{
xf86OutputPtr output = config->output[o];
if (enabled[o])
{
target_mode = xf86DefaultMode (output, width, height);
target_rotation = output->initial_rotation;
if (target_mode)
{
modes[o] = target_mode;
config->compat_output = o;
break;
}
}
}
}
for (o = 0; o < config->num_output; o++)
{
xf86OutputPtr output = config->output[o];
if (enabled[o])
{
if (!modes[o])
modes[o] = xf86ClosestMode (output, target_mode,
target_rotation, width, height);
if (!modes[o])
xf86DrvMsg (scrn->scrnIndex, X_ERROR,
"Output %s enabled but has no modes\n",
output->name);
else
xf86DrvMsg (scrn->scrnIndex, X_INFO,
"Output %s using initial mode %s\n",
output->name, modes[o]->name);
}
}
/*
* Set the position of each output
*/
if (!xf86InitialOutputPositions (scrn, modes))
{
xfree (crtcs);
xfree (modes);
return FALSE;
}
/*
* Assign CRTCs to fit output configuration
*/
if (!xf86PickCrtcs (scrn, crtcs, modes, 0, width, height))
{
xfree (crtcs);
xfree (modes);
return FALSE;
}
/* XXX override xf86 common frame computation code */
scrn->display->frameX0 = 0;
scrn->display->frameY0 = 0;
for (c = 0; c < config->num_crtc; c++)
{
xf86CrtcPtr crtc = config->crtc[c];
crtc->enabled = FALSE;
memset (&crtc->desiredMode, '\0', sizeof (crtc->desiredMode));
}
/*
* Set initial configuration
*/
for (o = 0; o < config->num_output; o++)
{
xf86OutputPtr output = config->output[o];
DisplayModePtr mode = modes[o];
xf86CrtcPtr crtc = crtcs[o];
if (mode && crtc)
{
crtc->desiredMode = *mode;
crtc->desiredRotation = output->initial_rotation;
crtc->desiredX = output->initial_x;
crtc->desiredY = output->initial_y;
crtc->enabled = TRUE;
crtc->x = output->initial_x;
crtc->y = output->initial_y;
output->crtc = crtc;
}
}
if (scrn->display->virtualX == 0)
{
/*
* Expand virtual size to cover the current config and potential mode
* switches, if the driver can't enlarge the screen later.
*/
xf86DefaultScreenLimits (scrn, &width, &height, canGrow);
scrn->display->virtualX = width;
scrn->display->virtualY = height;
}
if (width > scrn->virtualX)
scrn->virtualX = width;
if (height > scrn->virtualY)
scrn->virtualY = height;
/*
* Make sure the configuration isn't too small.
*/
if (width < config->minWidth || height < config->minHeight)
return FALSE;
/*
* Limit the crtc config to virtual[XY] if the driver can't grow the
* desktop.
*/
if (!canGrow)
{
xf86CrtcSetSizeRange (scrn, config->minWidth, config->minHeight,
width, height);
}
/* Mirror output modes to scrn mode list */
xf86SetScrnInfoModes (scrn);
xfree (crtcs);
xfree (modes);
return TRUE;
}
/*
* Using the desired mode information in each crtc, set
* modes (used in EnterVT functions, or at server startup)
*/
_X_EXPORT Bool
xf86SetDesiredModes (ScrnInfoPtr scrn)
{
xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(scrn);
int c, o;
/*
* Turn off everything so mode setting is done
* with hardware in a consistent state
*/
for (o = 0; o < config->num_output; o++)
{
xf86OutputPtr output = config->output[o];
(*output->funcs->dpms)(output, DPMSModeOff);
}
for (c = 0; c < config->num_crtc; c++)
{
xf86CrtcPtr crtc = config->crtc[c];
crtc->funcs->dpms(crtc, DPMSModeOff);
memset(&crtc->mode, 0, sizeof(crtc->mode));
}
for (c = 0; c < config->num_crtc; c++)
{
xf86CrtcPtr crtc = config->crtc[c];
xf86OutputPtr output = NULL;
int o;
if (config->output[config->compat_output]->crtc == crtc)
output = config->output[config->compat_output];
else
{
for (o = 0; o < config->num_output; o++)
if (config->output[o]->crtc == crtc)
{
output = config->output[o];
break;
}
}
/*
* Skip disabled crtcs
*/
if (!output)
continue;
/* Mark that we'll need to re-set the mode for sure */
memset(&crtc->mode, 0, sizeof(crtc->mode));
if (!crtc->desiredMode.CrtcHDisplay)
{
DisplayModePtr mode = xf86OutputFindClosestMode (output, scrn->currentMode);
if (!mode)
return FALSE;
crtc->desiredMode = *mode;
crtc->desiredRotation = RR_Rotate_0;
crtc->desiredX = 0;
crtc->desiredY = 0;
}
if (!xf86CrtcSetMode (crtc, &crtc->desiredMode, crtc->desiredRotation,
crtc->desiredX, crtc->desiredY))
return FALSE;
}
xf86DisableUnusedFunctions(scrn);
return TRUE;
}
/**
* In the current world order, there are lists of modes per output, which may
* or may not include the mode that was asked to be set by XFree86's mode
* selection. Find the closest one, in the following preference order:
*
* - Equality
* - Closer in size to the requested mode, but no larger
* - Closer in refresh rate to the requested mode.
*/
_X_EXPORT DisplayModePtr
xf86OutputFindClosestMode (xf86OutputPtr output, DisplayModePtr desired)
{
DisplayModePtr best = NULL, scan = NULL;
for (scan = output->probed_modes; scan != NULL; scan = scan->next)
{
/* If there's an exact match, we're done. */
if (xf86ModesEqual(scan, desired)) {
best = desired;
break;
}
/* Reject if it's larger than the desired mode. */
if (scan->HDisplay > desired->HDisplay ||
scan->VDisplay > desired->VDisplay)
{
continue;
}
/*
* If we haven't picked a best mode yet, use the first
* one in the size range
*/
if (best == NULL)
{
best = scan;
continue;
}
/* Find if it's closer to the right size than the current best
* option.
*/
if ((scan->HDisplay > best->HDisplay &&
scan->VDisplay >= best->VDisplay) ||
(scan->HDisplay >= best->HDisplay &&
scan->VDisplay > best->VDisplay))
{
best = scan;
continue;
}
/* Find if it's still closer to the right refresh than the current
* best resolution.
*/
if (scan->HDisplay == best->HDisplay &&
scan->VDisplay == best->VDisplay &&
(fabs(scan->VRefresh - desired->VRefresh) <
fabs(best->VRefresh - desired->VRefresh))) {
best = scan;
}
}
return best;
}
/**
* When setting a mode through XFree86-VidModeExtension or XFree86-DGA,
* take the specified mode and apply it to the crtc connected to the compat
* output. Then, find similar modes for the other outputs, as with the
* InitialConfiguration code above. The goal is to clone the desired
* mode across all outputs that are currently active.
*/
_X_EXPORT Bool
xf86SetSingleMode (ScrnInfoPtr pScrn, DisplayModePtr desired, Rotation rotation)
{
xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(pScrn);
Bool ok = TRUE;
xf86OutputPtr compat_output = config->output[config->compat_output];
DisplayModePtr compat_mode;
int c;
/*
* Let the compat output drive the final mode selection
*/
compat_mode = xf86OutputFindClosestMode (compat_output, desired);
if (compat_mode)
desired = compat_mode;
for (c = 0; c < config->num_crtc; c++)
{
xf86CrtcPtr crtc = config->crtc[c];
DisplayModePtr crtc_mode = NULL;
int o;
if (!crtc->enabled)
continue;
for (o = 0; o < config->num_output; o++)
{
xf86OutputPtr output = config->output[o];
DisplayModePtr output_mode;
/* skip outputs not on this crtc */
if (output->crtc != crtc)
continue;
if (crtc_mode)
{
output_mode = xf86OutputFindClosestMode (output, crtc_mode);
if (output_mode != crtc_mode)
output->crtc = NULL;
}
else
crtc_mode = xf86OutputFindClosestMode (output, desired);
}
if (!crtc_mode)
{
crtc->enabled = FALSE;
continue;
}
if (!xf86CrtcSetMode (crtc, crtc_mode, rotation, 0, 0))
ok = FALSE;
else
{
crtc->desiredMode = *crtc_mode;
crtc->desiredRotation = rotation;
crtc->desiredX = 0;
crtc->desiredY = 0;
}
}
xf86DisableUnusedFunctions(pScrn);
#if RANDR_12_INTERFACE
xf86RandR12TellChanged (pScrn->pScreen);
#endif
return ok;
}
/**
* Set the DPMS power mode of all outputs and CRTCs.
*
* If the new mode is off, it will turn off outputs and then CRTCs.
* Otherwise, it will affect CRTCs before outputs.
*/
_X_EXPORT void
xf86DPMSSet(ScrnInfoPtr scrn, int mode, int flags)
{
xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(scrn);
int i;
if (!scrn->vtSema)
return;
if (mode == DPMSModeOff) {
for (i = 0; i < config->num_output; i++) {
xf86OutputPtr output = config->output[i];
if (output->crtc != NULL)
(*output->funcs->dpms) (output, mode);
}
}
for (i = 0; i < config->num_crtc; i++) {
xf86CrtcPtr crtc = config->crtc[i];
if (crtc->enabled)
(*crtc->funcs->dpms) (crtc, mode);
}
if (mode != DPMSModeOff) {
for (i = 0; i < config->num_output; i++) {
xf86OutputPtr output = config->output[i];
if (output->crtc != NULL)
(*output->funcs->dpms) (output, mode);
}
}
}
/**
* Implement the screensaver by just calling down into the driver DPMS hooks.
*
* Even for monitors with no DPMS support, by the definition of our DPMS hooks,
* the outputs will still get disabled (blanked).
*/
_X_EXPORT Bool
xf86SaveScreen(ScreenPtr pScreen, int mode)
{
ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
if (xf86IsUnblank(mode))
xf86DPMSSet(pScrn, DPMSModeOn, 0);
else
xf86DPMSSet(pScrn, DPMSModeOff, 0);
return TRUE;
}
/**
* Disable all inactive crtcs and outputs
*/
_X_EXPORT void
xf86DisableUnusedFunctions(ScrnInfoPtr pScrn)
{
xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(pScrn);
int o, c;
for (o = 0; o < xf86_config->num_output; o++)
{
xf86OutputPtr output = xf86_config->output[o];
if (!output->crtc)
(*output->funcs->dpms)(output, DPMSModeOff);
}
for (c = 0; c < xf86_config->num_crtc; c++)
{
xf86CrtcPtr crtc = xf86_config->crtc[c];
if (!crtc->enabled)
{
crtc->funcs->dpms(crtc, DPMSModeOff);
memset(&crtc->mode, 0, sizeof(crtc->mode));
}
}
}
#ifdef RANDR_12_INTERFACE
#define EDID_ATOM_NAME "EDID_DATA"
/**
* Set the RandR EDID property
*/
static void
xf86OutputSetEDIDProperty (xf86OutputPtr output, void *data, int data_len)
{
Atom edid_atom = MakeAtom(EDID_ATOM_NAME, sizeof(EDID_ATOM_NAME) - 1, TRUE);
/* This may get called before the RandR resources have been created */
if (output->randr_output == NULL)
return;
if (data_len != 0) {
RRChangeOutputProperty(output->randr_output, edid_atom, XA_INTEGER, 8,
PropModeReplace, data_len, data, FALSE, TRUE);
} else {
RRDeleteOutputProperty(output->randr_output, edid_atom);
}
}
#endif
/**
* Set the EDID information for the specified output
*/
_X_EXPORT void
xf86OutputSetEDID (xf86OutputPtr output, xf86MonPtr edid_mon)
{
ScrnInfoPtr scrn = output->scrn;
xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(scrn);
int i;
#ifdef RANDR_12_INTERFACE
int size;
#endif
if (output->MonInfo != NULL)
xfree(output->MonInfo);
output->MonInfo = edid_mon;
if (config->debug_modes) {
xf86DrvMsg(scrn->scrnIndex, X_INFO, "EDID for output %s\n",
output->name);
xf86PrintEDID(edid_mon);
}
/* Set the DDC properties for the 'compat' output */
if (output == config->output[config->compat_output])
xf86SetDDCproperties(scrn, edid_mon);
#ifdef RANDR_12_INTERFACE
/* Set the RandR output properties */
size = 0;
if (edid_mon)
{
if (edid_mon->ver.version == 1)
size = 128;
else if (edid_mon->ver.version == 2)
size = 256;
}
xf86OutputSetEDIDProperty (output, edid_mon ? edid_mon->rawData : NULL, size);
#endif
if (edid_mon)
{
/* Pull out a phyiscal size from a detailed timing if available. */
for (i = 0; i < 4; i++) {
if (edid_mon->det_mon[i].type == DT &&
edid_mon->det_mon[i].section.d_timings.h_size != 0 &&
edid_mon->det_mon[i].section.d_timings.v_size != 0)
{
output->mm_width = edid_mon->det_mon[i].section.d_timings.h_size;
output->mm_height = edid_mon->det_mon[i].section.d_timings.v_size;
break;
}
}
/* if no mm size is available from a detailed timing, check the max size field */
if ((!output->mm_width || !output->mm_height) &&
(edid_mon->features.hsize && edid_mon->features.vsize))
{
output->mm_width = edid_mon->features.hsize * 10;
output->mm_height = edid_mon->features.vsize * 10;
}
}
}
/**
* Return the list of modes supported by the EDID information
* stored in 'output'
*/
_X_EXPORT DisplayModePtr
xf86OutputGetEDIDModes (xf86OutputPtr output)
{
ScrnInfoPtr scrn = output->scrn;
xf86MonPtr edid_mon = output->MonInfo;
if (!edid_mon)
return NULL;
return xf86DDCGetModes(scrn->scrnIndex, edid_mon);
}
_X_EXPORT xf86MonPtr
xf86OutputGetEDID (xf86OutputPtr output, I2CBusPtr pDDCBus)
{
ScrnInfoPtr scrn = output->scrn;
return xf86DoEDID_DDC2 (scrn->scrnIndex, pDDCBus);
}
static char *_xf86ConnectorNames[] = { "None", "VGA", "DVI-I", "DVI-D",
"DVI-A", "Composite", "S-Video",
"Component", "LFP", "Proprietary" };
_X_EXPORT char *
xf86ConnectorGetName(xf86ConnectorType connector)
{
return _xf86ConnectorNames[connector];
}
static void
x86_crtc_box_intersect(BoxPtr dest, BoxPtr a, BoxPtr b)
{
dest->x1 = a->x1 > b->x1 ? a->x1 : b->x1;
dest->x2 = a->x2 < b->x2 ? a->x2 : b->x2;
dest->y1 = a->y1 > b->y1 ? a->y1 : b->y1;
dest->y2 = a->y2 < b->y2 ? a->y2 : b->y2;
if (dest->x1 >= dest->x2 || dest->y1 >= dest->y2)
dest->x1 = dest->x2 = dest->y1 = dest->y2 = 0;
}
static void
x86_crtc_box(xf86CrtcPtr crtc, BoxPtr crtc_box)
{
if (crtc->enabled) {
crtc_box->x1 = crtc->x;
crtc_box->x2 = crtc->x + xf86ModeWidth(&crtc->mode, crtc->rotation);
crtc_box->y1 = crtc->y;
crtc_box->y2 = crtc->y + xf86ModeHeight(&crtc->mode, crtc->rotation);
} else
crtc_box->x1 = crtc_box->x2 = crtc_box->y1 = crtc_box->y2 = 0;
}
static int
xf86_crtc_box_area(BoxPtr box)
{
return (int) (box->x2 - box->x1) * (int) (box->y2 - box->y1);
}
/*
* Return the crtc covering 'box'. If two crtcs cover a portion of
* 'box', then prefer 'desired'. If 'desired' is NULL, then prefer the crtc
* with greater coverage
*/
static xf86CrtcPtr
xf86_covering_crtc(ScrnInfoPtr pScrn,
BoxPtr box,
xf86CrtcPtr desired,
BoxPtr crtc_box_ret)
{
xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(pScrn);
xf86CrtcPtr crtc, best_crtc;
int coverage, best_coverage;
int c;
BoxRec crtc_box, cover_box;
best_crtc = NULL;
best_coverage = 0;
crtc_box_ret->x1 = 0;
crtc_box_ret->x2 = 0;
crtc_box_ret->y1 = 0;
crtc_box_ret->y2 = 0;
for (c = 0; c < xf86_config->num_crtc; c++) {
crtc = xf86_config->crtc[c];
x86_crtc_box(crtc, &crtc_box);
x86_crtc_box_intersect(&cover_box, &crtc_box, box);
coverage = xf86_crtc_box_area(&cover_box);
if (coverage && crtc == desired) {
*crtc_box_ret = crtc_box;
return crtc;
} else if (coverage > best_coverage) {
*crtc_box_ret = crtc_box;
best_crtc = crtc;
best_coverage = coverage;
}
}
return best_crtc;
}
/*
* For overlay video, compute the relevant CRTC and
* clip video to that
*/
_X_EXPORT Bool
xf86_crtc_clip_video_helper(ScrnInfoPtr pScrn,
xf86CrtcPtr *crtc_ret,
xf86CrtcPtr desired_crtc,
BoxPtr dst,
INT32 *xa,
INT32 *xb,
INT32 *ya,
INT32 *yb,
RegionPtr reg,
INT32 width,
INT32 height)
{
Bool ret;
RegionRec crtc_region_local;
RegionPtr crtc_region = reg;
if (crtc_ret) {
BoxRec crtc_box;
xf86CrtcPtr crtc = xf86_covering_crtc(pScrn, dst,
desired_crtc,
&crtc_box);
if (crtc) {
REGION_INIT (pScreen, &crtc_region_local, &crtc_box, 1);
crtc_region = &crtc_region_local;
REGION_INTERSECT (pScreen, crtc_region, crtc_region, reg);
}
*crtc_ret = crtc;
}
ret = xf86XVClipVideoHelper(dst, xa, xb, ya, yb,
crtc_region, width, height);
if (crtc_region != reg)
REGION_UNINIT (pScreen, &crtc_region_local);
return ret;
}
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