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xserver/hw/xfree86/modes/xf86Crtc.c

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/*
* Copyright © 2006 Keith Packard
* Copyright © 2008 Red Hat, Inc.
*
* 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>
#endif
#include <stddef.h>
#include <string.h>
#include <stdio.h>
#include "xf86.h"
#include "xf86DDC.h"
#include "xf86Crtc.h"
#include "xf86Modes.h"
#include "xf86Priv.h"
#include "xf86RandR12.h"
#include "X11/extensions/render.h"
#include "X11/extensions/dpmsconst.h"
#include "X11/Xatom.h"
#include "picturestr.h"
#ifdef XV
#include "xf86xv.h"
#endif
#define NO_OUTPUT_DEFAULT_WIDTH 1024
#define NO_OUTPUT_DEFAULT_HEIGHT 768
/*
* Initialize xf86CrtcConfig structure
*/
int xf86CrtcConfigPrivateIndex = -1;
void
xf86CrtcConfigInit(ScrnInfoPtr scrn, const xf86CrtcConfigFuncsRec * funcs)
{
xf86CrtcConfigPtr config;
if (xf86CrtcConfigPrivateIndex == -1)
xf86CrtcConfigPrivateIndex = xf86AllocateScrnInfoPrivateIndex();
config = xnfcalloc(1, sizeof(xf86CrtcConfigRec));
config->funcs = funcs;
config->compat_output = -1;
scrn->privates[xf86CrtcConfigPrivateIndex].ptr = config;
}
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
*/
xf86CrtcPtr
xf86CrtcCreate(ScrnInfoPtr scrn, const xf86CrtcFuncsRec * funcs)
{
xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(scrn);
xf86CrtcPtr crtc, *crtcs;
crtc = calloc(sizeof(xf86CrtcRec), 1);
if (!crtc)
return NULL;
crtc->version = XF86_CRTC_VERSION;
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;
pixman_transform_init_identity(&crtc->crtc_to_framebuffer);
pixman_f_transform_init_identity(&crtc->f_crtc_to_framebuffer);
pixman_f_transform_init_identity(&crtc->f_framebuffer_to_crtc);
crtc->filter = NULL;
crtc->params = NULL;
crtc->nparams = 0;
crtc->filter_width = 0;
crtc->filter_height = 0;
crtc->transform_in_use = FALSE;
crtc->transformPresent = FALSE;
crtc->desiredTransformPresent = FALSE;
memset(&crtc->bounds, '\0', sizeof(crtc->bounds));
/* Preallocate gamma at a sensible size. */
crtc->gamma_size = 256;
crtc->gamma_red = xallocarray(crtc->gamma_size, 3 * sizeof(CARD16));
if (!crtc->gamma_red) {
free(crtc);
return NULL;
}
crtc->gamma_green = crtc->gamma_red + crtc->gamma_size;
crtc->gamma_blue = crtc->gamma_green + crtc->gamma_size;
if (xf86_config->crtc)
crtcs = reallocarray(xf86_config->crtc,
xf86_config->num_crtc + 1, sizeof(xf86CrtcPtr));
else
crtcs = xallocarray(xf86_config->num_crtc + 1, sizeof(xf86CrtcPtr));
if (!crtcs) {
free(crtc->gamma_red);
free(crtc);
return NULL;
}
xf86_config->crtc = crtcs;
xf86_config->crtc[xf86_config->num_crtc++] = crtc;
return crtc;
}
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;
}
free(crtc->params);
free(crtc->gamma_red);
free(crtc);
}
/**
* Return whether any outputs are connected to the specified pipe
*/
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;
}
/**
* Return whether the crtc is leased by a client
*/
static Bool
xf86CrtcIsLeased(xf86CrtcPtr crtc)
{
/* If the DIX structure hasn't been created, it can't have been leased */
if (!crtc->randr_crtc)
return FALSE;
return RRCrtcIsLeased(crtc->randr_crtc);
}
/**
* Return whether the output is leased by a client
*/
static Bool
xf86OutputIsLeased(xf86OutputPtr output)
{
/* If the DIX structure hasn't been created, it can't have been leased */
if (!output->randr_output)
return FALSE;
return RROutputIsLeased(output->randr_output);
}
void
xf86CrtcSetScreenSubpixelOrder(ScreenPtr pScreen)
{
int subpixel_order = SubPixelUnknown;
Bool has_none = FALSE;
ScrnInfoPtr scrn = xf86ScreenToScrn(pScreen);
xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(scrn);
int icrtc, o;
for (icrtc = 0; icrtc < xf86_config->num_crtc; icrtc++) {
xf86CrtcPtr crtc = xf86_config->crtc[icrtc];
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 sc;
for (rotate = 0; rotate < 4; rotate++)
if (crtc->rotation & (1 << rotate))
break;
for (sc = 0; sc < 4; sc++)
if (circle[sc] == subpixel_order)
break;
sc = (sc + rotate) & 0x3;
if ((crtc->rotation & RR_Reflect_X) && !(sc & 1))
sc ^= 2;
if ((crtc->rotation & RR_Reflect_Y) && (sc & 1))
sc ^= 2;
subpixel_order = circle[sc];
break;
}
}
if (subpixel_order == SubPixelUnknown && has_none)
subpixel_order = SubPixelNone;
PictureSetSubpixelOrder(pScreen, subpixel_order);
}
/**
* Sets the given video mode on the given crtc
*/
Bool
xf86CrtcSetModeTransform(xf86CrtcPtr crtc, DisplayModePtr mode,
Rotation rotation, RRTransformPtr transform, 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;
RRTransformRec saved_transform;
Bool saved_transform_present;
crtc->enabled = xf86CrtcInUse(crtc) && !xf86CrtcIsLeased(crtc);
/* We only hit this if someone explicitly sends a "disabled" modeset. */
if (!crtc->enabled) {
/* Check everything for stuff that should be off. */
xf86DisableUnusedFunctions(scrn);
return TRUE;
}
adjusted_mode = xf86DuplicateMode(mode);
saved_mode = crtc->mode;
saved_x = crtc->x;
saved_y = crtc->y;
saved_rotation = crtc->rotation;
if (crtc->transformPresent) {
RRTransformInit(&saved_transform);
RRTransformCopy(&saved_transform, &crtc->transform);
}
saved_transform_present = crtc->transformPresent;
/* 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;
if (transform) {
RRTransformCopy(&crtc->transform, transform);
crtc->transformPresent = TRUE;
}
else
crtc->transformPresent = FALSE;
if (crtc->funcs->set_mode_major) {
ret = crtc->funcs->set_mode_major(crtc, mode, rotation, x, y);
goto done;
}
didLock = crtc->funcs->lock(crtc);
/* 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))
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, crtc->x, crtc->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);
}
/* Only upload when needed, to avoid unneeded delays. */
if (!crtc->active && crtc->funcs->gamma_set)
crtc->funcs->gamma_set(crtc, crtc->gamma_red, crtc->gamma_green,
crtc->gamma_blue, crtc->gamma_size);
/* 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);
}
ret = TRUE;
done:
if (ret) {
crtc->active = TRUE;
if (scrn->pScreen)
xf86CrtcSetScreenSubpixelOrder(scrn->pScreen);
if (scrn->ModeSet)
scrn->ModeSet(scrn);
/* Make sure the HW cursor is hidden if it's supposed to be, in case
* it was hidden while the CRTC was disabled
*/
if (!xf86_config->cursor_on)
xf86_hide_cursors(scrn);
}
else {
crtc->x = saved_x;
crtc->y = saved_y;
crtc->rotation = saved_rotation;
crtc->mode = saved_mode;
if (saved_transform_present)
RRTransformCopy(&crtc->transform, &saved_transform);
crtc->transformPresent = saved_transform_present;
}
free((void *) adjusted_mode->name);
free(adjusted_mode);
if (didLock)
crtc->funcs->unlock(crtc);
return ret;
}
/**
* Sets the given video mode on the given crtc, but without providing
* a transform
*/
Bool
xf86CrtcSetMode(xf86CrtcPtr crtc, DisplayModePtr mode, Rotation rotation,
int x, int y)
{
return xf86CrtcSetModeTransform(crtc, mode, rotation, NULL, x, y);
}
/**
* Pans the screen, does not change the mode
*/
void
xf86CrtcSetOrigin(xf86CrtcPtr crtc, int x, int y)
{
ScrnInfoPtr scrn = crtc->scrn;
crtc->x = x;
crtc->y = y;
if (xf86CrtcIsLeased(crtc))
return;
if (crtc->funcs->set_origin) {
if (!xf86CrtcRotate(crtc))
return;
crtc->funcs->set_origin(crtc, x, y);
if (scrn->ModeSet)
scrn->ModeSet(scrn);
}
else
xf86CrtcSetMode(crtc, &crtc->mode, crtc->rotation, x, y);
}
/*
* Output functions
*/
extern XF86ConfigPtr xf86configptr;
typedef enum {
OPTION_PREFERRED_MODE,
OPTION_ZOOM_MODES,
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,
OPTION_PANNING,
OPTION_PRIMARY,
OPTION_DEFAULT_MODES,
} OutputOpts;
static OptionInfoRec xf86OutputOptions[] = {
{OPTION_PREFERRED_MODE, "PreferredMode", OPTV_STRING, {0}, FALSE},
{OPTION_ZOOM_MODES, "ZoomModes", 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},
{OPTION_PANNING, "Panning", OPTV_STRING, {0}, FALSE},
{OPTION_PRIMARY, "Primary", OPTV_BOOLEAN, {0}, FALSE},
{OPTION_DEFAULT_MODES, "DefaultModes", OPTV_BOOLEAN, {0}, FALSE},
{-1, NULL, OPTV_NONE, {0}, FALSE},
};
enum {
OPTION_MODEDEBUG,
OPTION_PREFER_CLONEMODE,
OPTION_NO_OUTPUT_INITIAL_SIZE,
};
static OptionInfoRec xf86DeviceOptions[] = {
{OPTION_MODEDEBUG, "ModeDebug", OPTV_BOOLEAN, {0}, FALSE},
{OPTION_PREFER_CLONEMODE, "PreferCloneMode", OPTV_BOOLEAN, {0}, FALSE},
{OPTION_NO_OUTPUT_INITIAL_SIZE, "NoOutputInitialSize", OPTV_STRING, {0}, FALSE},
{-1, NULL, OPTV_NONE, {0}, FALSE},
};
static void
xf86OutputSetMonitor(xf86OutputPtr output)
{
char *option_name;
const char *monitor;
if (!output->name)
return;
free(output->options);
output->options = xnfalloc(sizeof(xf86OutputOptions));
memcpy(output->options, xf86OutputOptions, sizeof(xf86OutputOptions));
XNFasprintf(&option_name, "monitor-%s", output->name);
monitor = xf86findOptionValue(output->scrn->options, option_name);
if (!monitor)
monitor = output->name;
else
xf86MarkOptionUsedByName(output->scrn->options, option_name);
free(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);
}
Bool
xf86OutputForceEnabled(xf86OutputPtr output)
{
Bool enable;
if (xf86GetOptValBool(output->options, OPTION_ENABLE, &enable) && enable)
return TRUE;
return FALSE;
}
static Bool
xf86OutputEnabled(xf86OutputPtr output, Bool strict)
{
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;
}
/* If not, try to only light up the ones we know are connected which are supposed to be on the desktop */
if (strict) {
enable = output->status == XF86OutputStatusConnected && !output->non_desktop;
}
/* But if that fails, try to light up even outputs we're unsure of */
else {
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 const char *direction[4] = {
"normal",
"left",
"inverted",
"right"
};
static Rotation
xf86OutputInitialRotation(xf86OutputPtr output)
{
const char *rotate_name = xf86GetOptValString(output->options,
OPTION_ROTATE);
int i;
if (!rotate_name) {
if (output->initial_rotation)
return output->initial_rotation;
return RR_Rotate_0;
}
for (i = 0; i < 4; i++)
if (xf86nameCompare(direction[i], rotate_name) == 0)
return 1 << i;
return RR_Rotate_0;
}
xf86OutputPtr
xf86OutputCreate(ScrnInfoPtr scrn,
const xf86OutputFuncsRec * funcs, const char *name)
{
xf86OutputPtr output, *outputs;
xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(scrn);
int len;
Bool primary;
if (name)
len = strlen(name) + 1;
else
len = 0;
output = calloc(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)) {
free(output);
return FALSE;
}
}
if (xf86_config->output)
outputs = reallocarray(xf86_config->output,
xf86_config->num_output + 1,
sizeof(xf86OutputPtr));
else
outputs = xallocarray(xf86_config->num_output + 1,
sizeof(xf86OutputPtr));
if (!outputs) {
free(output);
return NULL;
}
xf86_config->output = outputs;
if (xf86GetOptValBool(output->options, OPTION_PRIMARY, &primary) && primary) {
memmove(xf86_config->output + 1, xf86_config->output,
xf86_config->num_output * sizeof(xf86OutputPtr));
xf86_config->output[0] = output;
}
else {
xf86_config->output[xf86_config->num_output] = output;
}
xf86_config->num_output++;
return output;
}
Bool
xf86OutputRename(xf86OutputPtr output, const char *name)
{
char *newname = strdup(name);
if (!newname)
return FALSE; /* so sorry... */
if (output->name && output->name != (char *) (output + 1))
free(output->name);
output->name = newname;
xf86OutputSetMonitor(output);
if (xf86OutputIgnored(output))
return FALSE;
return TRUE;
}
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);
}
}
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))
free(output->name);
free(output);
}
/*
* Called during CreateScreenResources to hook up RandR
*/
static Bool
xf86CrtcCreateScreenResources(ScreenPtr screen)
{
ScrnInfoPtr scrn = xf86ScreenToScrn(screen);
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(ScreenPtr screen)
{
ScrnInfoPtr scrn = xf86ScreenToScrn(screen);
xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(scrn);
int o, c;
/* The randr_output and randr_crtc pointers are already invalid as
* the DIX resources were freed when the associated resources were
* freed. Clear them now; referencing through them during the rest
* of the CloseScreen sequence will not end well.
*/
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;
}
screen->CloseScreen = config->CloseScreen;
xf86RotateCloseScreen(screen);
xf86RandR12CloseScreen(screen);
screen->CloseScreen(screen);
/* detach any providers */
if (config->randr_provider) {
RRProviderDestroy(config->randr_provider);
config->randr_provider = NULL;
}
return TRUE;
}
/*
* Called at ScreenInit time to set up
*/
#ifdef RANDR_13_INTERFACE
int
#else
Bool
#endif
xf86CrtcScreenInit(ScreenPtr screen)
{
ScrnInfoPtr scrn = xf86ScreenToScrn(screen);
xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(scrn);
int c;
/* Rotation */
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);
xf86RandR12SetTransformSupport(screen, TRUE);
}
else {
xf86RandR12SetRotations(screen, RR_Rotate_0);
xf86RandR12SetTransformSupport(screen, FALSE);
}
/* Wrap CreateScreenResources so we can initialize the RandR code */
config->CreateScreenResources = screen->CreateScreenResources;
screen->CreateScreenResources = xf86CrtcCreateScreenResources;
config->CloseScreen = screen->CloseScreen;
screen->CloseScreen = xf86CrtcCloseScreen;
/* This might still be marked wrapped from a previous generation */
config->BlockHandler = NULL;
#ifdef XFreeXDGA
_xf86_di_dga_init_internal(screen);
#endif
#ifdef RANDR_13_INTERFACE
return RANDR_INTERFACE_VERSION;
#else
return TRUE;
#endif
}
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 = (768 * 25.4) / DEFAULT_DPI;
/*
* Pick a mode closest to DEFAULT_DPI
*/
for (mode = output->probed_modes; mode; mode = mode->next) {
int dpi;
int preferred = (((mode->type & M_T_PREFERRED) != 0) +
((mode->type & M_T_USERPREF) != 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 - DEFAULT_DPI;
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 DisplayModePtr
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 mode;
}
return NULL;
}
static DisplayModePtr
xf86OutputHasUserPreferredMode(xf86OutputPtr output)
{
DisplayModePtr mode, first = output->probed_modes;
for (mode = first; mode && mode->next != first; mode = mode->next)
if (mode->type & M_T_USERPREF)
return mode;
return NULL;
}
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;
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_score = xf86PickCrtcs(scrn, best_crtcs, modes, n + 1, width, height);
if (modes[n] == NULL)
return best_score;
crtcs = xallocarray(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[o]->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_score = score;
memcpy(best_crtcs, crtcs, config->num_output * sizeof(xf86CrtcPtr));
}
}
free(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->desiredX + xf86ModeWidth(&crtc->desiredMode,
crtc->desiredRotation);
crtc_height =
crtc->desiredY + 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
/*
* check if the user configured any outputs at all
* with either a position or a relative setting or a mode.
*/
static Bool
xf86UserConfiguredOutputs(ScrnInfoPtr scrn, DisplayModePtr * modes)
{
xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(scrn);
int o;
Bool user_conf = FALSE;
for (o = 0; o < config->num_output; o++) {
xf86OutputPtr output = config->output[o];
const char *position;
const char *relative_name;
OutputOpts relation;
int r;
static const OutputOpts relations[] = {
OPTION_BELOW, OPTION_RIGHT_OF, OPTION_ABOVE, OPTION_LEFT_OF
};
position = xf86GetOptValString(output->options, OPTION_POSITION);
if (position)
user_conf = TRUE;
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)
user_conf = TRUE;
modes[o] = xf86OutputHasUserPreferredMode(output);
if (modes[o])
user_conf = TRUE;
}
return user_conf;
}
static Bool
xf86InitialOutputPositions(ScrnInfoPtr scrn, DisplayModePtr * modes)
{
xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(scrn);
int o;
int min_x, min_y;
/* check for initial right-of heuristic */
for (o = 0; o < config->num_output; o++)
{
xf86OutputPtr output = config->output[o];
if (output->initial_x || output->initial_y)
return TRUE;
}
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;
const char *relative_name;
const 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 (!modes[or]) {
xf86DrvMsg(scrn->scrnIndex, X_ERROR,
"Cannot position output %s relative to output %s without modes\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:
if (modes[o])
output->initial_y -=
xf86ModeHeight(modes[o], output->initial_rotation);
break;
case OPTION_LEFT_OF:
if (modes[o])
output->initial_x -=
xf86ModeWidth(modes[o], output->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;
}
static void
xf86InitialPanning(ScrnInfoPtr scrn)
{
xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(scrn);
int o;
for (o = 0; o < config->num_output; o++) {
xf86OutputPtr output = config->output[o];
const char *panning = xf86GetOptValString(output->options, OPTION_PANNING);
int width, height, left, top;
int track_width, track_height, track_left, track_top;
int brdr[4];
memset(&output->initialTotalArea, 0, sizeof(BoxRec));
memset(&output->initialTrackingArea, 0, sizeof(BoxRec));
memset(output->initialBorder, 0, 4 * sizeof(INT16));
if (!panning)
continue;
switch (sscanf(panning, "%dx%d+%d+%d/%dx%d+%d+%d/%d/%d/%d/%d",
&width, &height, &left, &top,
&track_width, &track_height, &track_left, &track_top,
&brdr[0], &brdr[1], &brdr[2], &brdr[3])) {
case 12:
output->initialBorder[0] = brdr[0];
output->initialBorder[1] = brdr[1];
output->initialBorder[2] = brdr[2];
output->initialBorder[3] = brdr[3];
/* fall through */
case 8:
output->initialTrackingArea.x1 = track_left;
output->initialTrackingArea.y1 = track_top;
output->initialTrackingArea.x2 = track_left + track_width;
output->initialTrackingArea.y2 = track_top + track_height;
/* fall through */
case 4:
output->initialTotalArea.x1 = left;
output->initialTotalArea.y1 = top;
/* fall through */
case 2:
output->initialTotalArea.x2 = output->initialTotalArea.x1 + width;
output->initialTotalArea.y2 = output->initialTotalArea.y1 + height;
break;
default:
xf86DrvMsg(scrn->scrnIndex, X_ERROR,
"Broken panning specification '%s' for output %s in config file\n",
panning, output->name);
}
}
}
/** 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;
free((void *) n->name);
free(n);
n = o;
}
}
/* hook up backward links */
prev = NULL;
for (o = output; o; o = o->next) {
o->prev = prev;
prev = o;
}
return output;
}
static const char *
preferredMode(ScrnInfoPtr pScrn, xf86OutputPtr output)
{
const char *preferred_mode = NULL;
/* Check for a configured preference for a particular mode */
preferred_mode = xf86GetOptValString(output->options,
OPTION_PREFERRED_MODE);
if (preferred_mode)
return preferred_mode;
if (pScrn->display->modes && *pScrn->display->modes)
preferred_mode = *pScrn->display->modes;
return preferred_mode;
}
/** identify a token
* args
* *src a string with zero or more tokens, e.g. "tok0 tok1",
* **token stores a pointer to the first token character,
* *len stores the token length.
* return
* a pointer into src[] at the token terminating character, or
* NULL if no token is found.
*/
static const char *
gettoken(const char *src, const char **token, int *len)
{
const char *delim = " \t";
int skip;
if (!src)
return NULL;
skip = strspn(src, delim);
*token = &src[skip];
*len = strcspn(*token, delim);
/* Support for backslash escaped delimiters could be implemented
* here.
*/
/* (*token)[0] != '\0' <==> *len > 0 */
if (*len > 0)
return &(*token)[*len];
else
return NULL;
}
/** Check for a user configured zoom mode list, Option "ZoomModes":
*
* Section "Monitor"
* Identifier "a21inch"
* Option "ZoomModes" "1600x1200 1280x1024 1280x1024 640x480"
* EndSection
*
* Each user mode name is searched for independently so the list
* specification order is free. An output mode is matched at most
* once, a mode with an already set M_T_USERDEF type bit is skipped.
* Thus a repeat mode name specification matches the next output mode
* with the same name.
*
* Ctrl+Alt+Keypad-{Plus,Minus} zooms {in,out} by selecting the
* {next,previous} M_T_USERDEF mode in the screen modes list, itself
* sorted toward lower dot area or lower dot clock frequency, see
* modes/xf86Crtc.c: xf86SortModes() xf86SetScrnInfoModes(), and
* common/xf86Cursor.c: xf86ZoomViewport().
*/
static int
processZoomModes(xf86OutputPtr output)
{
const char *zoom_modes;
int count = 0;
zoom_modes = xf86GetOptValString(output->options, OPTION_ZOOM_MODES);
if (zoom_modes) {
const char *token, *next;
int len;
next = gettoken(zoom_modes, &token, &len);
while (next) {
DisplayModePtr mode;
for (mode = output->probed_modes; mode; mode = mode->next)
if (!strncmp(token, mode->name, len) /* prefix match */
&& mode->name[len] == '\0' /* equal length */
&& !(mode->type & M_T_USERDEF)) { /* no rematch */
mode->type |= M_T_USERDEF;
break;
}
count++;
next = gettoken(next, &token, &len);
}
}
return count;
}
static void
GuessRangeFromModes(MonPtr mon, DisplayModePtr mode)
{
if (!mon || !mode)
return;
mon->nHsync = 1;
mon->hsync[0].lo = 1024.0;
mon->hsync[0].hi = 0.0;
mon->nVrefresh = 1;
mon->vrefresh[0].lo = 1024.0;
mon->vrefresh[0].hi = 0.0;
while (mode) {
if (!mode->HSync)
mode->HSync = ((float) mode->Clock) / ((float) mode->HTotal);
if (!mode->VRefresh)
mode->VRefresh = (1000.0 * ((float) mode->Clock)) /
((float) (mode->HTotal * mode->VTotal));
if (mode->HSync < mon->hsync[0].lo)
mon->hsync[0].lo = mode->HSync;
if (mode->HSync > mon->hsync[0].hi)
mon->hsync[0].hi = mode->HSync;
if (mode->VRefresh < mon->vrefresh[0].lo)
mon->vrefresh[0].lo = mode->VRefresh;
if (mode->VRefresh > mon->vrefresh[0].hi)
mon->vrefresh[0].hi = mode->VRefresh;
mode = mode->next;
}
/* stretch out the bottom to fit 640x480@60 */
if (mon->hsync[0].lo > 31.0)
mon->hsync[0].lo = 31.0;
if (mon->vrefresh[0].lo > 58.0)
mon->vrefresh[0].lo = 58.0;
}
enum det_monrec_source {
sync_config, sync_edid, sync_default
};
struct det_monrec_parameter {
MonRec *mon_rec;
int *max_clock;
Bool set_hsync;
Bool set_vrefresh;
enum det_monrec_source *sync_source;
};
static void
handle_detailed_monrec(struct detailed_monitor_section *det_mon, void *data)
{
struct det_monrec_parameter *p;
p = (struct det_monrec_parameter *) data;
if (det_mon->type == DS_RANGES) {
struct monitor_ranges *ranges = &det_mon->section.ranges;
if (p->set_hsync && ranges->max_h) {
p->mon_rec->hsync[p->mon_rec->nHsync].lo = ranges->min_h;
p->mon_rec->hsync[p->mon_rec->nHsync].hi = ranges->max_h;
p->mon_rec->nHsync++;
if (*p->sync_source == sync_default)
*p->sync_source = sync_edid;
}
if (p->set_vrefresh && ranges->max_v) {
p->mon_rec->vrefresh[p->mon_rec->nVrefresh].lo = ranges->min_v;
p->mon_rec->vrefresh[p->mon_rec->nVrefresh].hi = ranges->max_v;
p->mon_rec->nVrefresh++;
if (*p->sync_source == sync_default)
*p->sync_source = sync_edid;
}
if (ranges->max_clock * 1000 > *p->max_clock)
*p->max_clock = ranges->max_clock * 1000;
}
}
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;
}
/* 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 = NULL;
const char *preferred_mode;
xf86MonPtr edid_monitor;
XF86ConfMonitorPtr conf_monitor;
MonRec mon_rec;
int min_clock = 0;
int max_clock = 0;
double clock;
Bool add_default_modes;
Bool debug_modes = config->debug_modes || xf86Initialising;
enum det_monrec_source 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 &&
!xf86ReturnOptValBool(output->options, OPTION_ENABLE, FALSE)) {
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);
/*
* If the user has a preference, respect it.
* Otherwise, don't second-guess the driver.
*/
if (!xf86GetOptValBool(output->options, OPTION_DEFAULT_MODES,
&add_default_modes))
add_default_modes = (output_modes == NULL);
edid_monitor = output->MonInfo;
if (edid_monitor) {
struct det_monrec_parameter p;
struct cea_data_block *hdmi_db;
/* if display is not continuous-frequency, don't add default modes */
if (!gtf_supported(edid_monitor))
add_default_modes = FALSE;
p.mon_rec = &mon_rec;
p.max_clock = &max_clock;
p.set_hsync = mon_rec.nHsync == 0;
p.set_vrefresh = mon_rec.nVrefresh == 0;
p.sync_source = &sync_source;
xf86ForEachDetailedBlock(edid_monitor, handle_detailed_monrec, &p);
/* Look at the CEA HDMI vendor block for the max TMDS freq */
hdmi_db = xf86MonitorFindHDMIBlock(edid_monitor);
if (hdmi_db && hdmi_db->len >= 7) {
int tmds_freq = hdmi_db->u.vendor.hdmi.max_tmds_clock * 5000;
xf86DrvMsg(scrn->scrnIndex, X_PROBED,
"HDMI max TMDS frequency %dKHz\n", tmds_freq);
if (tmds_freq > max_clock)
max_clock = tmds_freq;
}
}
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;
/* If we still don't have a sync range, guess wildly */
if (!mon_rec.nHsync || !mon_rec.nVrefresh)
GuessRangeFromModes(&mon_rec, output_modes);
/*
* 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;
}
if (add_default_modes)
default_modes = xf86GetDefaultModes();
/*
* If this is not an RB monitor, remove RB modes from the default
* pool. RB modes from the config or the monitor itself are fine.
*/
if (!mon_rec.reducedblanking)
xf86ValidateModesReducedBlanking(scrn, default_modes);
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);
xf86ValidateModesClocks(scrn, output_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, interlace, and doublescan
*/
if (maxX && maxY)
xf86ValidateModesSize(scrn, output->probed_modes, maxX, maxY, 0);
{
int flags = (output->interlaceAllowed ? V_INTERLACE : 0) |
(output->doubleScanAllowed ? V_DBLSCAN : 0);
xf86ValidateModesFlags(scrn, output->probed_modes, flags);
}
/*
* 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, debug_modes);
output->probed_modes = xf86SortModes(output->probed_modes);
/* Check for a configured preference for a particular mode */
preferred_mode = preferredMode(scrn, output);
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 | M_T_USERPREF);
break;
}
}
}
/* Ctrl+Alt+Keypad-{Plus,Minus} zoom mode: M_T_USERDEF mode type */
processZoomModes(output);
output->initial_rotation = xf86OutputInitialRotation(output);
if (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 (debug_modes)
xf86PrintModeline(scrn->scrnIndex, mode);
}
}
}
/**
* Copy one of the output mode lists to the ScrnInfo record
*/
static DisplayModePtr
biggestMode(DisplayModePtr a, DisplayModePtr b)
{
int A, B;
if (!a)
return b;
if (!b)
return a;
A = a->HDisplay * a->VDisplay;
B = b->HDisplay * b->VDisplay;
if (A > B)
return a;
return b;
}
static xf86OutputPtr
SetCompatOutput(xf86CrtcConfigPtr config)
{
xf86OutputPtr output = NULL, test = NULL;
DisplayModePtr maxmode = NULL, testmode, mode;
int o, compat = -1, count, mincount = 0;
if (config->num_output == 0)
return NULL;
/* Look for one that's definitely connected */
for (o = 0; o < config->num_output; o++) {
test = config->output[o];
if (!test->crtc)
continue;
if (test->status != XF86OutputStatusConnected)
continue;
if (!test->probed_modes)
continue;
testmode = mode = test->probed_modes;
for (count = 0; mode; mode = mode->next, count++)
testmode = biggestMode(testmode, mode);
if (!output) {
output = test;
compat = o;
maxmode = testmode;
mincount = count;
}
else if (maxmode == biggestMode(maxmode, testmode)) {
output = test;
compat = o;
maxmode = testmode;
mincount = count;
}
else if ((maxmode->HDisplay == testmode->HDisplay) &&
(maxmode->VDisplay == testmode->VDisplay) &&
count <= mincount) {
output = test;
compat = o;
maxmode = testmode;
mincount = count;
}
}
/* If we didn't find one, take anything we can get */
if (!output) {
for (o = 0; o < config->num_output; o++) {
test = config->output[o];
if (!test->crtc)
continue;
if (!test->probed_modes)
continue;
if (!output) {
output = test;
compat = o;
}
else if (test->probed_modes->HDisplay <
output->probed_modes->HDisplay) {
output = test;
compat = o;
}
}
}
if (compat >= 0) {
config->compat_output = compat;
}
else if (config->compat_output >= 0 && config->compat_output < config->num_output) {
/* Don't change the compat output when no valid outputs found */
output = config->output[config->compat_output];
}
/* All outputs are disconnected, select one to fake */
if (!output && config->num_output) {
config->compat_output = 0;
output = config->output[config->compat_output];
}
return output;
}
void
xf86SetScrnInfoModes(ScrnInfoPtr scrn)
{
xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(scrn);
xf86OutputPtr output;
xf86CrtcPtr crtc;
DisplayModePtr last, mode = NULL;
output = SetCompatOutput(config);
if (!output)
return; /* punt */
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);
if (crtc) {
for (mode = scrn->modes; mode; mode = mode->next)
if (xf86ModesEqual(mode, &crtc->desiredMode))
break;
}
if (!scrn->modes) {
scrn->modes = xf86ModesAdd(scrn->modes,
xf86CVTMode(scrn->display->virtualX,
scrn->display->virtualY,
60, 0, 0));
}
/* 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;
#ifdef XFreeXDGA
if (scrn->pScreen)
_xf86_di_dga_reinit_internal(scrn->pScreen);
#endif
}
static Bool
xf86CollectEnabledOutputs(ScrnInfoPtr scrn, xf86CrtcConfigPtr config,
Bool *enabled)
{
Bool any_enabled = FALSE;
int o;
/*
* Don't bother enabling outputs on GPU screens: a client needs to attach
* it to a source provider before setting a mode that scans out a shared
* pixmap.
*/
if (scrn->is_gpu)
return FALSE;
for (o = 0; o < config->num_output; o++)
any_enabled |= enabled[o] = xf86OutputEnabled(config->output[o], TRUE);
if (!any_enabled) {
xf86DrvMsg(scrn->scrnIndex, X_WARNING,
"No outputs definitely connected, trying again...\n");
for (o = 0; o < config->num_output; o++)
any_enabled |= enabled[o] =
xf86OutputEnabled(config->output[o], FALSE);
}
return any_enabled;
}
static Bool
nextEnabledOutput(xf86CrtcConfigPtr config, Bool *enabled, int *index)
{
int o = *index;
for (o++; o < config->num_output; o++) {
if (enabled[o]) {
*index = o;
return TRUE;
}
}
return FALSE;
}
static Bool
aspectMatch(float a, float b)
{
return fabs(1 - (a / b)) < 0.05;
}
static DisplayModePtr
nextAspectMode(xf86OutputPtr o, DisplayModePtr last, float aspect)
{
DisplayModePtr m = NULL;
if (!o)
return NULL;
if (!last)
m = o->probed_modes;
else
m = last->next;
for (; m; m = m->next)
if (aspectMatch(aspect, (float) m->HDisplay / (float) m->VDisplay))
return m;
return NULL;
}
static DisplayModePtr
bestModeForAspect(xf86CrtcConfigPtr config, Bool *enabled, float aspect)
{
int o = -1, p;
DisplayModePtr mode = NULL, test = NULL, match = NULL;
if (!nextEnabledOutput(config, enabled, &o))
return NULL;
while ((mode = nextAspectMode(config->output[o], mode, aspect))) {
test = mode;
for (p = o; nextEnabledOutput(config, enabled, &p);) {
test = xf86OutputFindClosestMode(config->output[p], mode);
if (!test)
break;
if (test->HDisplay != mode->HDisplay ||
test->VDisplay != mode->VDisplay) {
test = NULL;
break;
}
}
/* if we didn't match it on all outputs, try the next one */
if (!test)
continue;
/* if it's bigger than the last one, save it */
if (!match || (test->HDisplay > match->HDisplay))
match = test;
}
/* return the biggest one found */
return match;
}
static int
numEnabledOutputs(xf86CrtcConfigPtr config, Bool *enabled)
{
int i = 0, p;
for (i = 0, p = -1; nextEnabledOutput(config, enabled, &p); i++) ;
return i;
}
static Bool
xf86TargetRightOf(ScrnInfoPtr scrn, xf86CrtcConfigPtr config,
DisplayModePtr *modes, Bool *enabled,
int width, int height)
{
int o;
int w = 0;
Bool has_tile = FALSE;
uint32_t configured_outputs;
xf86GetOptValBool(config->options, OPTION_PREFER_CLONEMODE,
&scrn->preferClone);
if (scrn->preferClone)
return FALSE;
if (numEnabledOutputs(config, enabled) < 2)
return FALSE;
for (o = -1; nextEnabledOutput(config, enabled, &o); ) {
DisplayModePtr mode =
xf86OutputHasPreferredMode(config->output[o], width, height);
if (!mode)
return FALSE;
w += mode->HDisplay;
}
if (w > width)
return FALSE;
w = 0;
configured_outputs = 0;
for (o = -1; nextEnabledOutput(config, enabled, &o); ) {
DisplayModePtr mode =
xf86OutputHasPreferredMode(config->output[o], width, height);
if (configured_outputs & (1 << o))
continue;
if (config->output[o]->tile_info.group_id) {
has_tile = TRUE;
continue;
}
config->output[o]->initial_x = w;
w += mode->HDisplay;
configured_outputs |= (1 << o);
modes[o] = mode;
}
if (has_tile) {
for (o = -1; nextEnabledOutput(config, enabled, &o); ) {
int ht, vt, ot;
int add_x, cur_x = w;
struct xf86CrtcTileInfo *tile_info = &config->output[o]->tile_info, *this_tile;
if (configured_outputs & (1 << o))
continue;
if (!tile_info->group_id)
continue;
if (tile_info->tile_h_loc != 0 && tile_info->tile_v_loc != 0)
continue;
for (ht = 0; ht < tile_info->num_h_tile; ht++) {
int cur_y = 0;
add_x = 0;
for (vt = 0; vt < tile_info->num_v_tile; vt++) {
for (ot = -1; nextEnabledOutput(config, enabled, &ot); ) {
DisplayModePtr mode =
xf86OutputHasPreferredMode(config->output[ot], width, height);
if (!config->output[ot]->tile_info.group_id)
continue;
this_tile = &config->output[ot]->tile_info;
if (this_tile->group_id != tile_info->group_id)
continue;
if (this_tile->tile_h_loc != ht ||
this_tile->tile_v_loc != vt)
continue;
config->output[ot]->initial_x = cur_x;
config->output[ot]->initial_y = cur_y;
if (vt == 0)
add_x = this_tile->tile_h_size;
cur_y += this_tile->tile_v_size;
configured_outputs |= (1 << ot);
modes[ot] = mode;
}
}
cur_x += add_x;
}
w = cur_x;
}
}
return TRUE;
}
static Bool
xf86TargetPreferred(ScrnInfoPtr scrn, xf86CrtcConfigPtr config,
DisplayModePtr * modes, Bool *enabled,
int width, int height)
{
int o, p;
int max_pref_width = 0, max_pref_height = 0;
DisplayModePtr *preferred, *preferred_match;
Bool ret = FALSE;
preferred = xnfcalloc(config->num_output, sizeof(DisplayModePtr));
preferred_match = xnfcalloc(config->num_output, sizeof(DisplayModePtr));
/* Check if the preferred mode is available on all outputs */
for (p = -1; nextEnabledOutput(config, enabled, &p);) {
Rotation r = config->output[p]->initial_rotation;
DisplayModePtr mode;
if ((preferred[p] = xf86OutputHasPreferredMode(config->output[p],
width, height))) {
int pref_width = xf86ModeWidth(preferred[p], r);
int pref_height = xf86ModeHeight(preferred[p], r);
Bool all_match = TRUE;
for (o = -1; nextEnabledOutput(config, enabled, &o);) {
Bool match = FALSE;
xf86OutputPtr output = config->output[o];
if (o == p)
continue;
/*
* First see if the preferred mode matches on the next
* output as well. This catches the common case of identical
* monitors and makes sure they all have the same timings
* and refresh. If that fails, we fall back to trying to
* match just width & height.
*/
mode = xf86OutputHasPreferredMode(output, pref_width,
pref_height);
if (mode && xf86ModesEqual(mode, preferred[p])) {
preferred[o] = mode;
match = TRUE;
}
else {
for (mode = output->probed_modes; mode; mode = mode->next) {
Rotation ir = output->initial_rotation;
if (xf86ModeWidth(mode, ir) == pref_width &&
xf86ModeHeight(mode, ir) == pref_height) {
preferred[o] = mode;
match = TRUE;
}
}
}
all_match &= match;
}
if (all_match &&
(pref_width * pref_height > max_pref_width * max_pref_height)) {
for (o = -1; nextEnabledOutput(config, enabled, &o);)
preferred_match[o] = preferred[o];
max_pref_width = pref_width;
max_pref_height = pref_height;
ret = TRUE;
}
}
}
/*
* If there's no preferred mode, but only one monitor, pick the
* biggest mode for its aspect ratio or 4:3, assuming one exists.
*/
if (!ret)
do {
float aspect = 0.0;
DisplayModePtr a = NULL, b = NULL;
if (numEnabledOutputs(config, enabled) != 1)
break;
p = -1;
nextEnabledOutput(config, enabled, &p);
if (config->output[p]->mm_height)
aspect = (float) config->output[p]->mm_width /
(float) config->output[p]->mm_height;
a = bestModeForAspect(config, enabled, 4.0/3.0);
if (aspect)
b = bestModeForAspect(config, enabled, aspect);
preferred_match[p] = biggestMode(a, b);
if (preferred_match[p])
ret = TRUE;
} while (0);
if (ret) {
/* oh good, there is a match. stash the selected modes and return. */
memcpy(modes, preferred_match,
config->num_output * sizeof(DisplayModePtr));
}
free(preferred);
free(preferred_match);
return ret;
}
static Bool
xf86TargetAspect(ScrnInfoPtr scrn, xf86CrtcConfigPtr config,
DisplayModePtr * modes, Bool *enabled, int width, int height)
{
int o;
float aspect = 0.0, *aspects;
xf86OutputPtr output;
Bool ret = FALSE;
DisplayModePtr guess = NULL, aspect_guess = NULL, base_guess = NULL;
aspects = xnfcalloc(config->num_output, sizeof(float));
/* collect the aspect ratios */
for (o = -1; nextEnabledOutput(config, enabled, &o);) {
output = config->output[o];
if (output->mm_height)
aspects[o] = (float) output->mm_width / (float) output->mm_height;
else
aspects[o] = 4.0 / 3.0;
}
/* check that they're all the same */
for (o = -1; nextEnabledOutput(config, enabled, &o);) {
output = config->output[o];
if (!aspect) {
aspect = aspects[o];
}
else if (!aspectMatch(aspect, aspects[o])) {
goto no_aspect_match;
}
}
/* if they're all 4:3, just skip ahead and save effort */
if (!aspectMatch(aspect, 4.0 / 3.0))
aspect_guess = bestModeForAspect(config, enabled, aspect);
no_aspect_match:
base_guess = bestModeForAspect(config, enabled, 4.0 / 3.0);
guess = biggestMode(base_guess, aspect_guess);
if (!guess)
goto out;
/* found a mode that works everywhere, now apply it */
for (o = -1; nextEnabledOutput(config, enabled, &o);) {
modes[o] = xf86OutputFindClosestMode(config->output[o], guess);
}
ret = TRUE;
out:
free(aspects);
return ret;
}
static Bool
xf86TargetFallback(ScrnInfoPtr scrn, xf86CrtcConfigPtr config,
DisplayModePtr * modes, Bool *enabled, int width, int height)
{
DisplayModePtr target_mode = NULL;
Rotation target_rotation = RR_Rotate_0;
DisplayModePtr default_mode;
int default_preferred, target_preferred = 0, o;
/* User preferred > preferred > other modes */
for (o = -1; nextEnabledOutput(config, enabled, &o);) {
default_mode = xf86DefaultMode(config->output[o], width, height);
if (!default_mode)
continue;
default_preferred = (((default_mode->type & M_T_PREFERRED) != 0) +
((default_mode->type & M_T_USERPREF) != 0));
if (default_preferred > target_preferred || !target_mode) {
target_mode = default_mode;
target_preferred = default_preferred;
target_rotation = config->output[o]->initial_rotation;
config->compat_output = o;
}
}
if (target_mode)
modes[config->compat_output] = target_mode;
/* Fill in other output modes */
for (o = -1; nextEnabledOutput(config, enabled, &o);) {
if (!modes[o])
modes[o] = xf86ClosestMode(config->output[o], target_mode,
target_rotation, width, height);
}
return target_mode != NULL;
}
static Bool
xf86TargetUserpref(ScrnInfoPtr scrn, xf86CrtcConfigPtr config,
DisplayModePtr * modes, Bool *enabled, int width, int height)
{
int o;
if (xf86UserConfiguredOutputs(scrn, modes))
return xf86TargetFallback(scrn, config, modes, enabled, width, height);
for (o = -1; nextEnabledOutput(config, enabled, &o);)
if (xf86OutputHasUserPreferredMode(config->output[o]))
return
xf86TargetFallback(scrn, config, modes, enabled, width, height);
return FALSE;
}
void
xf86AssignNoOutputInitialSize(ScrnInfoPtr scrn, const OptionInfoRec *options,
int *no_output_width, int *no_output_height)
{
int width = 0, height = 0;
const char *no_output_size =
xf86GetOptValString(options, OPTION_NO_OUTPUT_INITIAL_SIZE);
*no_output_width = NO_OUTPUT_DEFAULT_WIDTH;
*no_output_height = NO_OUTPUT_DEFAULT_HEIGHT;
if (no_output_size == NULL) {
return;
}
if (sscanf(no_output_size, "%d %d", &width, &height) != 2) {
xf86DrvMsg(scrn->scrnIndex, X_ERROR,
"\"NoOutputInitialSize\" string \"%s\" not of form "
"\"width height\"\n", no_output_size);
return;
}
*no_output_width = width;
*no_output_height = height;
}
/**
* 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.
*/
Bool
xf86InitialConfiguration(ScrnInfoPtr scrn, Bool canGrow)
{
xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(scrn);
int o, c;
xf86CrtcPtr *crtcs;
DisplayModePtr *modes;
Bool *enabled;
int width, height;
int no_output_width, no_output_height;
int i = scrn->scrnIndex;
Bool have_outputs = TRUE;
Bool ret;
Bool success = FALSE;
/* 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 && !scrn->is_gpu)
width = scrn->display->virtualX;
else
width = config->maxWidth;
if (scrn->display->virtualY && !scrn->is_gpu)
height = scrn->display->virtualY;
else
height = config->maxHeight;
xf86AssignNoOutputInitialSize(scrn, config->options,
&no_output_width, &no_output_height);
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));
ret = xf86CollectEnabledOutputs(scrn, config, enabled);
if (ret == FALSE && canGrow) {
if (!scrn->is_gpu)
xf86DrvMsg(i, X_WARNING,
"Unable to find connected outputs - setting %dx%d "
"initial framebuffer\n",
no_output_width, no_output_height);
have_outputs = FALSE;
}
else {
if (xf86TargetUserpref(scrn, config, modes, enabled, width, height))
xf86DrvMsg(i, X_INFO, "Using user preference for initial modes\n");
else if (xf86TargetRightOf(scrn, config, modes, enabled, width, height))
xf86DrvMsg(i, X_INFO, "Using spanning desktop for initial modes\n");
else if (xf86TargetPreferred
(scrn, config, modes, enabled, width, height))
xf86DrvMsg(i, X_INFO, "Using exact sizes for initial modes\n");
else if (xf86TargetAspect(scrn, config, modes, enabled, width, height))
xf86DrvMsg(i, X_INFO,
"Using fuzzy aspect match for initial modes\n");
else if (xf86TargetFallback
(scrn, config, modes, enabled, width, height))
xf86DrvMsg(i, X_INFO, "Using sloppy heuristic for initial modes\n");
else
xf86DrvMsg(i, X_WARNING, "Unable to find initial modes\n");
}
for (o = -1; nextEnabledOutput(config, enabled, &o);) {
if (!modes[o])
xf86DrvMsg(scrn->scrnIndex, X_ERROR,
"Output %s enabled but has no modes\n",
config->output[o]->name);
else
xf86DrvMsg (scrn->scrnIndex, X_INFO,
"Output %s using initial mode %s +%d+%d\n",
config->output[o]->name, modes[o]->name,
config->output[o]->initial_x,
config->output[o]->initial_y);
}
/*
* Set the position of each output
*/
if (!xf86InitialOutputPositions(scrn, modes))
goto bailout;
/*
* Set initial panning of each output
*/
xf86InitialPanning(scrn);
/*
* Assign CRTCs to fit output configuration
*/
if (have_outputs && !xf86PickCrtcs(scrn, crtcs, modes, 0, width, height))
goto bailout;
/* XXX override xf86 common frame computation code */
if (!scrn->is_gpu) {
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) {
xf86SaveModeContents(&crtc->desiredMode, mode);
crtc->desiredRotation = output->initial_rotation;
crtc->desiredX = output->initial_x;
crtc->desiredY = output->initial_y;
crtc->desiredTransformPresent = FALSE;
crtc->enabled = TRUE;
memcpy(&crtc->panningTotalArea, &output->initialTotalArea,
sizeof(BoxRec));
memcpy(&crtc->panningTrackingArea, &output->initialTrackingArea,
sizeof(BoxRec));
memcpy(crtc->panningBorder, output->initialBorder,
4 * sizeof(INT16));
output->crtc = crtc;
}
else {
output->crtc = NULL;
}
}
if (scrn->display->virtualX == 0 || scrn->is_gpu) {
/*
* 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);
if (have_outputs == FALSE) {
if (width < no_output_width &&
height < no_output_height) {
width = no_output_width;
height = no_output_height;
}
}
if (!scrn->is_gpu) {
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)
goto bailout;
/*
* 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);
}
xf86SetScrnInfoModes(scrn);
success = TRUE;
bailout:
free(crtcs);
free(modes);
free(enabled);
return success;
}
/* Turn a CRTC off, using the DPMS function and disabling the cursor */
static void
xf86DisableCrtc(xf86CrtcPtr crtc)
{
if (xf86CrtcIsLeased(crtc))
return;
crtc->funcs->dpms(crtc, DPMSModeOff);
xf86_crtc_hide_cursor(crtc);
}
/*
* Check the CRTC we're going to map each output to vs. its current
* CRTC. If they don't match, we have to disable the output and the CRTC
* since the driver will have to re-route things.
*/
static void
xf86PrepareOutputs(ScrnInfoPtr scrn)
{
xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(scrn);
int o;
for (o = 0; o < config->num_output; o++) {
xf86OutputPtr output = config->output[o];
if (xf86OutputIsLeased(output))
continue;
#if RANDR_GET_CRTC_INTERFACE
/* Disable outputs that are unused or will be re-routed */
if (!output->funcs->get_crtc ||
output->crtc != (*output->funcs->get_crtc) (output) ||
output->crtc == NULL)
#endif
(*output->funcs->dpms) (output, DPMSModeOff);
}
}
static void
xf86PrepareCrtcs(ScrnInfoPtr scrn)
{
xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(scrn);
int c;
for (c = 0; c < config->num_crtc; c++) {
xf86CrtcPtr crtc = config->crtc[c];
#if RANDR_GET_CRTC_INTERFACE
xf86OutputPtr output = NULL;
uint32_t desired_outputs = 0, current_outputs = 0;
int o;
if (xf86CrtcIsLeased(crtc))
continue;
for (o = 0; o < config->num_output; o++) {
output = config->output[o];
if (output->crtc == crtc)
desired_outputs |= (1 << o);
/* If we can't tell where it's mapped, force it off */
if (!output->funcs->get_crtc) {
desired_outputs = 0;
break;
}
if ((*output->funcs->get_crtc) (output) == crtc)
current_outputs |= (1 << o);
}
/*
* If mappings are different or the CRTC is unused,
* we need to disable it
*/
if (desired_outputs != current_outputs || !desired_outputs)
xf86DisableCrtc(crtc);
#else
if (xf86CrtcIsLeased(crtc))
continue;
xf86DisableCrtc(crtc);
#endif
}
}
/*
* Using the desired mode information in each crtc, set
* modes (used in EnterVT functions, or at server startup)
*/
Bool
xf86SetDesiredModes(ScrnInfoPtr scrn)
{
xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(scrn);
xf86CrtcPtr crtc = config->crtc[0];
int enabled = 0, failed = 0;
int c;
/* A driver with this hook will take care of this */
if (!crtc->funcs->set_mode_major) {
xf86PrepareOutputs(scrn);
xf86PrepareCrtcs(scrn);
}
for (c = 0; c < config->num_crtc; c++) {
xf86OutputPtr output = NULL;
int o;
RRTransformPtr transform;
crtc = config->crtc[c];
/* Skip disabled CRTCs */
if (!crtc->enabled)
continue;
if (xf86CompatOutput(scrn) && xf86CompatCrtc(scrn) == crtc)
output = xf86CompatOutput(scrn);
else {
for (o = 0; o < config->num_output; o++)
if (config->output[o]->crtc == crtc) {
output = config->output[o];
break;
}
}
/* paranoia */
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;
xf86SaveModeContents(&crtc->desiredMode, mode);
crtc->desiredRotation = RR_Rotate_0;
crtc->desiredTransformPresent = FALSE;
crtc->desiredX = 0;
crtc->desiredY = 0;
}
if (crtc->desiredTransformPresent)
transform = &crtc->desiredTransform;
else
transform = NULL;
if (xf86CrtcSetModeTransform
(crtc, &crtc->desiredMode, crtc->desiredRotation, transform,
crtc->desiredX, crtc->desiredY)) {
++enabled;
} else {
for (o = 0; o < config->num_output; o++)
if (config->output[o]->crtc == crtc)
config->output[o]->crtc = NULL;
crtc->enabled = FALSE;
++failed;
}
}
xf86DisableUnusedFunctions(scrn);
return enabled != 0 || failed == 0;
}
/**
* 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.
*/
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.
*/
Bool
xf86SetSingleMode(ScrnInfoPtr pScrn, DisplayModePtr desired, Rotation rotation)
{
xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(pScrn);
Bool ok = TRUE;
xf86OutputPtr compat_output;
DisplayModePtr compat_mode = NULL;
int c;
/*
* Let the compat output drive the final mode selection
*/
compat_output = xf86CompatOutput(pScrn);
if (compat_output)
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 (!xf86CrtcSetModeTransform(crtc, crtc_mode, rotation, NULL, 0, 0))
ok = FALSE;
else {
xf86SaveModeContents(&crtc->desiredMode, crtc_mode);
crtc->desiredRotation = rotation;
crtc->desiredTransformPresent = FALSE;
crtc->desiredX = 0;
crtc->desiredY = 0;
}
}
xf86DisableUnusedFunctions(pScrn);
#ifdef 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.
*/
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 (!xf86OutputIsLeased(output) && 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 (!xf86OutputIsLeased(output) && 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).
*/
Bool
xf86SaveScreen(ScreenPtr pScreen, int mode)
{
ScrnInfoPtr pScrn = xf86ScreenToScrn(pScreen);
if (xf86IsUnblank(mode))
xf86DPMSSet(pScrn, DPMSModeOn, 0);
else
xf86DPMSSet(pScrn, DPMSModeOff, 0);
return TRUE;
}
/**
* Disable all inactive crtcs and outputs
*/
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) {
xf86DisableCrtc(crtc);
memset(&crtc->mode, 0, sizeof(crtc->mode));
xf86RotateDestroy(crtc);
crtc->active = FALSE;
}
}
if (pScrn->pScreen)
xf86_crtc_notify(pScrn->pScreen);
if (pScrn->ModeSet)
pScrn->ModeSet(pScrn);
if (pScrn->pScreen) {
if (pScrn->pScreen->isGPU)
xf86CursorResetCursor(pScrn->pScreen->current_primary);
else
xf86CursorResetCursor(pScrn->pScreen);
}
}
#ifdef RANDR_12_INTERFACE
#define EDID_ATOM_NAME "EDID"
/**
* 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);
}
}
#define TILE_ATOM_NAME "TILE"
/* changing this in the future could be tricky as people may hardcode 8 */
#define TILE_PROP_NUM_ITEMS 8
static void
xf86OutputSetTileProperty(xf86OutputPtr output)
{
Atom tile_atom = MakeAtom(TILE_ATOM_NAME, sizeof(TILE_ATOM_NAME) - 1, TRUE);
/* This may get called before the RandR resources have been created */
if (output->randr_output == NULL)
return;
if (output->tile_info.group_id != 0) {
RRChangeOutputProperty(output->randr_output, tile_atom, XA_INTEGER, 32,
PropModeReplace, TILE_PROP_NUM_ITEMS, (uint32_t *)&output->tile_info, FALSE, TRUE);
}
else {
RRDeleteOutputProperty(output->randr_output, tile_atom);
}
}
#endif
/* Pull out a physical size from a detailed timing if available. */
struct det_phySize_parameter {
xf86OutputPtr output;
ddc_quirk_t quirks;
Bool ret;
};
static void
handle_detailed_physical_size(struct detailed_monitor_section
*det_mon, void *data)
{
struct det_phySize_parameter *p;
p = (struct det_phySize_parameter *) data;
if (p->ret == TRUE)
return;
xf86DetTimingApplyQuirks(det_mon, p->quirks,
p->output->MonInfo->features.hsize,
p->output->MonInfo->features.vsize);
if (det_mon->type == DT &&
det_mon->section.d_timings.h_size != 0 &&
det_mon->section.d_timings.v_size != 0) {
/* some sanity checking for aspect ratio:
assume any h / v (or v / h) > 2.4 to be bogus.
This would even include cinemascope */
if (((det_mon->section.d_timings.h_size * 5) <
(det_mon->section.d_timings.v_size * 12)) &&
((det_mon->section.d_timings.v_size * 5) <
(det_mon->section.d_timings.h_size * 12))) {
p->output->mm_width = det_mon->section.d_timings.h_size;
p->output->mm_height = det_mon->section.d_timings.v_size;
p->ret = TRUE;
} else
xf86DrvMsg(p->output->scrn->scrnIndex, X_WARNING,
"Output %s: Strange aspect ratio (%i/%i), "
"consider adding a quirk\n", p->output->name,
det_mon->section.d_timings.h_size,
det_mon->section.d_timings.v_size);
}
}
Bool
xf86OutputParseKMSTile(const char *tile_data, int tile_length,
struct xf86CrtcTileInfo *tile_info)
{
int ret;
ret = sscanf(tile_data, "%d:%d:%d:%d:%d:%d:%d:%d",
&tile_info->group_id,
&tile_info->flags,
&tile_info->num_h_tile,
&tile_info->num_v_tile,
&tile_info->tile_h_loc,
&tile_info->tile_v_loc,
&tile_info->tile_h_size,
&tile_info->tile_v_size);
if (ret != 8)
return FALSE;
return TRUE;
}
void
xf86OutputSetTile(xf86OutputPtr output, struct xf86CrtcTileInfo *tile_info)
{
if (tile_info)
output->tile_info = *tile_info;
else
memset(&output->tile_info, 0, sizeof(output->tile_info));
#ifdef RANDR_12_INTERFACE
xf86OutputSetTileProperty(output);
#endif
}
/**
* Set the EDID information for the specified output
*/
void
xf86OutputSetEDID(xf86OutputPtr output, xf86MonPtr edid_mon)
{
ScrnInfoPtr scrn = output->scrn;
xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(scrn);
Bool debug_modes = config->debug_modes || xf86Initialising;
#ifdef RANDR_12_INTERFACE
int size;
#endif
free(output->MonInfo);
output->MonInfo = edid_mon;
output->mm_width = 0;
output->mm_height = 0;
if (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 */
/* GPU screens don't have a root window */
if (output == xf86CompatOutput(scrn) && !scrn->is_gpu)
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;
if (edid_mon->flags & EDID_COMPLETE_RAWDATA)
size += edid_mon->no_sections * 128;
}
else if (edid_mon->ver.version == 2)
size = 256;
}
xf86OutputSetEDIDProperty(output, edid_mon ? edid_mon->rawData : NULL,
size);
#endif
if (edid_mon) {
struct det_phySize_parameter p;
p.output = output;
p.quirks = xf86DDCDetectQuirks(scrn->scrnIndex, edid_mon, FALSE);
p.ret = FALSE;
xf86ForEachDetailedBlock(edid_mon, handle_detailed_physical_size, &p);
/* 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'
*/
DisplayModePtr
xf86OutputGetEDIDModes(xf86OutputPtr output)
{
ScrnInfoPtr scrn = output->scrn;
xf86MonPtr edid_mon = output->MonInfo;
if (!edid_mon)
return NULL;
return xf86DDCGetModes(scrn->scrnIndex, edid_mon);
}
/* maybe we should care about DDC1? meh. */
xf86MonPtr
xf86OutputGetEDID(xf86OutputPtr output, I2CBusPtr pDDCBus)
{
ScrnInfoPtr scrn = output->scrn;
xf86MonPtr mon;
mon = xf86DoEEDID(scrn, pDDCBus, TRUE);
if (mon)
xf86DDCApplyQuirks(scrn->scrnIndex, mon);
return mon;
}
static const char *_xf86ConnectorNames[] = {
"None", "VGA", "DVI-I", "DVI-D",
"DVI-A", "Composite", "S-Video",
"Component", "LFP", "Proprietary",
"HDMI", "DisplayPort",
};
const char *
xf86ConnectorGetName(xf86ConnectorType connector)
{
return _xf86ConnectorNames[connector];
}
#ifdef XV
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.
*
* returning FALSE means there was a memory failure of some kind,
* not that the video shouldn't be displayed
*/
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) {
RegionInit(&crtc_region_local, &crtc_box, 1);
crtc_region = &crtc_region_local;
RegionIntersect(crtc_region, crtc_region, reg);
}
*crtc_ret = crtc;
}
ret = xf86XVClipVideoHelper(dst, xa, xb, ya, yb,
crtc_region, width, height);
if (crtc_region != reg)
RegionUninit(&crtc_region_local);
return ret;
}
#endif
xf86_crtc_notify_proc_ptr
xf86_wrap_crtc_notify(ScreenPtr screen, xf86_crtc_notify_proc_ptr new)
{
if (xf86CrtcConfigPrivateIndex != -1) {
ScrnInfoPtr scrn = xf86ScreenToScrn(screen);
xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(scrn);
xf86_crtc_notify_proc_ptr old;
old = config->xf86_crtc_notify;
config->xf86_crtc_notify = new;
return old;
}
return NULL;
}
void
xf86_unwrap_crtc_notify(ScreenPtr screen, xf86_crtc_notify_proc_ptr old)
{
if (xf86CrtcConfigPrivateIndex != -1) {
ScrnInfoPtr scrn = xf86ScreenToScrn(screen);
xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(scrn);
config->xf86_crtc_notify = old;
}
}
void
xf86_crtc_notify(ScreenPtr screen)
{
ScrnInfoPtr scrn = xf86ScreenToScrn(screen);
xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(scrn);
if (config->xf86_crtc_notify)
config->xf86_crtc_notify(screen);
}
Bool
xf86_crtc_supports_gamma(ScrnInfoPtr pScrn)
{
if (xf86CrtcConfigPrivateIndex != -1) {
xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(pScrn);
xf86CrtcPtr crtc;
/* for multiple drivers loaded we need this */
if (!xf86_config)
return FALSE;
if (xf86_config->num_crtc == 0)
return FALSE;
crtc = xf86_config->crtc[0];
return crtc->funcs->gamma_set != NULL;
}
return FALSE;
}
void
xf86ProviderSetup(ScrnInfoPtr scrn,
const xf86ProviderFuncsRec *funcs, const char *name)
{
xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(scrn);
assert(!xf86_config->name);
assert(name);
xf86_config->name = strdup(name);
xf86_config->provider_funcs = funcs;
#ifdef RANDR_12_INTERFACE
xf86_config->randr_provider = NULL;
#endif
}
void
xf86DetachAllCrtc(ScrnInfoPtr scrn)
{
xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(scrn);
int i;
for (i = 0; i < xf86_config->num_crtc; i++) {
xf86CrtcPtr crtc = xf86_config->crtc[i];
if (crtc->randr_crtc)
RRCrtcDetachScanoutPixmap(crtc->randr_crtc);
/* dpms off */
xf86DisableCrtc(crtc);
/* force a reset the next time its used */
crtc->randr_crtc->mode = NULL;
crtc->mode.HDisplay = 0;
crtc->x = crtc->y = 0;
}
}
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