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xserver-multidpi/hw/kdrive/ephyr/ephyr.c
Eric Anholt fa2e787883 xephyr: Pass incoming XCB events to the Xlib event filter. 
This is the same thing that Qt ended up doing to get DRI2's event
mangling to happen despite using an XCB event loop.

Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
2014-03-05 13:10:15 -08:00

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/*
* Xephyr - A kdrive X server thats runs in a host X window.
* Authored by Matthew Allum <mallum@openedhand.com>
*
* Copyright © 2004 Nokia
*
* 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 Nokia not be used in
* advertising or publicity pertaining to distribution of the software without
* specific, written prior permission. Nokia makes no
* representations about the suitability of this software for any purpose. It
* is provided "as is" without express or implied warranty.
*
* NOKIA DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL NOKIA 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_CONFIG_H
#include <kdrive-config.h>
#endif
#include <xcb/xcb_keysyms.h>
#include <X11/keysym.h>
#include "ephyr.h"
#include "inputstr.h"
#include "scrnintstr.h"
#include "ephyrlog.h"
#ifdef XF86DRI
#include <xcb/xf86dri.h>
#include "ephyrdri.h"
#include "ephyrdriext.h"
#include "ephyrglxext.h"
#endif /* XF86DRI */
#ifdef GLAMOR
#include "glamor.h"
#endif
#include "ephyr_glamor_glx.h"
#include "xkbsrv.h"
extern int KdTsPhyScreen;
extern Bool ephyr_glamor;
KdKeyboardInfo *ephyrKbd;
KdPointerInfo *ephyrMouse;
EphyrKeySyms ephyrKeySyms;
Bool ephyrNoDRI = FALSE;
Bool ephyrNoXV = FALSE;
static int mouseState = 0;
static Rotation ephyrRandr = RR_Rotate_0;
typedef struct _EphyrInputPrivate {
Bool enabled;
} EphyrKbdPrivate, EphyrPointerPrivate;
Bool EphyrWantGrayScale = 0;
Bool EphyrWantResize = 0;
Bool
host_has_extension(xcb_extension_t *extension)
{
const xcb_query_extension_reply_t *rep;
rep = xcb_get_extension_data(hostx_get_xcbconn(), extension);
return rep && rep->present;
}
Bool
ephyrInitialize(KdCardInfo * card, EphyrPriv * priv)
{
OsSignal(SIGUSR1, hostx_handle_signal);
priv->base = 0;
priv->bytes_per_line = 0;
return TRUE;
}
Bool
ephyrCardInit(KdCardInfo * card)
{
EphyrPriv *priv;
priv = (EphyrPriv *) malloc(sizeof(EphyrPriv));
if (!priv)
return FALSE;
if (!ephyrInitialize(card, priv)) {
free(priv);
return FALSE;
}
card->driver = priv;
return TRUE;
}
Bool
ephyrScreenInitialize(KdScreenInfo *screen)
{
EphyrScrPriv *scrpriv = screen->driver;
int width = 640, height = 480;
CARD32 redMask, greenMask, blueMask;
if (hostx_want_screen_size(screen, &width, &height)
|| !screen->width || !screen->height) {
screen->width = width;
screen->height = height;
}
if (EphyrWantGrayScale)
screen->fb.depth = 8;
if (screen->fb.depth && screen->fb.depth != hostx_get_depth()) {
if (screen->fb.depth < hostx_get_depth()
&& (screen->fb.depth == 24 || screen->fb.depth == 16
|| screen->fb.depth == 8)) {
scrpriv->server_depth = screen->fb.depth;
}
else
ErrorF
("\nXephyr: requested screen depth not supported, setting to match hosts.\n");
}
screen->fb.depth = hostx_get_server_depth(screen);
screen->rate = 72;
if (screen->fb.depth <= 8) {
if (EphyrWantGrayScale)
screen->fb.visuals = ((1 << StaticGray) | (1 << GrayScale));
else
screen->fb.visuals = ((1 << StaticGray) |
(1 << GrayScale) |
(1 << StaticColor) |
(1 << PseudoColor) |
(1 << TrueColor) | (1 << DirectColor));
screen->fb.redMask = 0x00;
screen->fb.greenMask = 0x00;
screen->fb.blueMask = 0x00;
screen->fb.depth = 8;
screen->fb.bitsPerPixel = 8;
}
else {
screen->fb.visuals = (1 << TrueColor);
if (screen->fb.depth <= 15) {
screen->fb.depth = 15;
screen->fb.bitsPerPixel = 16;
}
else if (screen->fb.depth <= 16) {
screen->fb.depth = 16;
screen->fb.bitsPerPixel = 16;
}
else if (screen->fb.depth <= 24) {
screen->fb.depth = 24;
screen->fb.bitsPerPixel = 32;
}
else if (screen->fb.depth <= 30) {
screen->fb.depth = 30;
screen->fb.bitsPerPixel = 32;
}
else {
ErrorF("\nXephyr: Unsupported screen depth %d\n", screen->fb.depth);
return FALSE;
}
hostx_get_visual_masks(screen, &redMask, &greenMask, &blueMask);
screen->fb.redMask = (Pixel) redMask;
screen->fb.greenMask = (Pixel) greenMask;
screen->fb.blueMask = (Pixel) blueMask;
}
scrpriv->randr = screen->randr;
return ephyrMapFramebuffer(screen);
}
void *
ephyrWindowLinear(ScreenPtr pScreen,
CARD32 row,
CARD32 offset, int mode, CARD32 *size, void *closure)
{
KdScreenPriv(pScreen);
EphyrPriv *priv = pScreenPriv->card->driver;
if (!pScreenPriv->enabled)
return 0;
*size = priv->bytes_per_line;
return priv->base + row * priv->bytes_per_line + offset;
}
/**
* Figure out display buffer size. If fakexa is enabled, allocate a larger
* buffer so that fakexa has space to put offscreen pixmaps.
*/
int
ephyrBufferHeight(KdScreenInfo * screen)
{
int buffer_height;
if (ephyrFuncs.initAccel == NULL)
buffer_height = screen->height;
else
buffer_height = 3 * screen->height;
return buffer_height;
}
Bool
ephyrMapFramebuffer(KdScreenInfo * screen)
{
EphyrScrPriv *scrpriv = screen->driver;
EphyrPriv *priv = screen->card->driver;
KdPointerMatrix m;
int buffer_height;
EPHYR_LOG("screen->width: %d, screen->height: %d index=%d",
screen->width, screen->height, screen->mynum);
/*
* Use the rotation last applied to ourselves (in the Xephyr case the fb
* coordinate system moves independently of the pointer coordiante system).
*/
KdComputePointerMatrix(&m, ephyrRandr, screen->width, screen->height);
KdSetPointerMatrix(&m);
buffer_height = ephyrBufferHeight(screen);
priv->base =
hostx_screen_init(screen, screen->width, screen->height, buffer_height,
&priv->bytes_per_line, &screen->fb.bitsPerPixel);
if ((scrpriv->randr & RR_Rotate_0) && !(scrpriv->randr & RR_Reflect_All)) {
scrpriv->shadow = FALSE;
screen->fb.byteStride = priv->bytes_per_line;
screen->fb.pixelStride = screen->width;
screen->fb.frameBuffer = (CARD8 *) (priv->base);
}
else {
/* Rotated/Reflected so we need to use shadow fb */
scrpriv->shadow = TRUE;
EPHYR_LOG("allocing shadow");
KdShadowFbAlloc(screen,
scrpriv->randr & (RR_Rotate_90 | RR_Rotate_270));
}
return TRUE;
}
void
ephyrSetScreenSizes(ScreenPtr pScreen)
{
KdScreenPriv(pScreen);
KdScreenInfo *screen = pScreenPriv->screen;
EphyrScrPriv *scrpriv = screen->driver;
if (scrpriv->randr & (RR_Rotate_0 | RR_Rotate_180)) {
pScreen->width = screen->width;
pScreen->height = screen->height;
pScreen->mmWidth = screen->width_mm;
pScreen->mmHeight = screen->height_mm;
}
else {
pScreen->width = screen->height;
pScreen->height = screen->width;
pScreen->mmWidth = screen->height_mm;
pScreen->mmHeight = screen->width_mm;
}
}
Bool
ephyrUnmapFramebuffer(KdScreenInfo * screen)
{
EphyrScrPriv *scrpriv = screen->driver;
if (scrpriv->shadow)
KdShadowFbFree(screen);
/* Note, priv->base will get freed when XImage recreated */
return TRUE;
}
void
ephyrShadowUpdate(ScreenPtr pScreen, shadowBufPtr pBuf)
{
KdScreenPriv(pScreen);
KdScreenInfo *screen = pScreenPriv->screen;
EPHYR_LOG("slow paint");
/* FIXME: Slow Rotated/Reflected updates could be much
* much faster efficiently updating via tranforming
* pBuf->pDamage regions
*/
shadowUpdateRotatePacked(pScreen, pBuf);
hostx_paint_rect(screen, 0, 0, 0, 0, screen->width, screen->height);
}
static void
ephyrInternalDamageRedisplay(ScreenPtr pScreen)
{
KdScreenPriv(pScreen);
KdScreenInfo *screen = pScreenPriv->screen;
EphyrScrPriv *scrpriv = screen->driver;
RegionPtr pRegion;
if (!scrpriv || !scrpriv->pDamage)
return;
pRegion = DamageRegion(scrpriv->pDamage);
if (RegionNotEmpty(pRegion)) {
int nbox;
BoxPtr pbox;
if (ephyr_glamor) {
ephyr_glamor_damage_redisplay(scrpriv->glamor, pRegion);
} else {
nbox = RegionNumRects(pRegion);
pbox = RegionRects(pRegion);
while (nbox--) {
hostx_paint_rect(screen,
pbox->x1, pbox->y1,
pbox->x1, pbox->y1,
pbox->x2 - pbox->x1, pbox->y2 - pbox->y1);
pbox++;
}
}
DamageEmpty(scrpriv->pDamage);
}
}
static void
ephyrInternalDamageBlockHandler(void *data, OSTimePtr pTimeout, void *pRead)
{
ScreenPtr pScreen = (ScreenPtr) data;
ephyrInternalDamageRedisplay(pScreen);
}
static void
ephyrInternalDamageWakeupHandler(void *data, int i, void *LastSelectMask)
{
/* FIXME: Not needed ? */
}
Bool
ephyrSetInternalDamage(ScreenPtr pScreen)
{
KdScreenPriv(pScreen);
KdScreenInfo *screen = pScreenPriv->screen;
EphyrScrPriv *scrpriv = screen->driver;
PixmapPtr pPixmap = NULL;
scrpriv->pDamage = DamageCreate((DamageReportFunc) 0,
(DamageDestroyFunc) 0,
DamageReportNone, TRUE, pScreen, pScreen);
if (!RegisterBlockAndWakeupHandlers(ephyrInternalDamageBlockHandler,
ephyrInternalDamageWakeupHandler,
(void *) pScreen))
return FALSE;
pPixmap = (*pScreen->GetScreenPixmap) (pScreen);
DamageRegister(&pPixmap->drawable, scrpriv->pDamage);
return TRUE;
}
void
ephyrUnsetInternalDamage(ScreenPtr pScreen)
{
KdScreenPriv(pScreen);
KdScreenInfo *screen = pScreenPriv->screen;
EphyrScrPriv *scrpriv = screen->driver;
DamageDestroy(scrpriv->pDamage);
RemoveBlockAndWakeupHandlers(ephyrInternalDamageBlockHandler,
ephyrInternalDamageWakeupHandler,
(void *) pScreen);
}
#ifdef RANDR
Bool
ephyrRandRGetInfo(ScreenPtr pScreen, Rotation * rotations)
{
KdScreenPriv(pScreen);
KdScreenInfo *screen = pScreenPriv->screen;
EphyrScrPriv *scrpriv = screen->driver;
RRScreenSizePtr pSize;
Rotation randr;
int n = 0;
struct {
int width, height;
} sizes[] = {
{1600, 1200},
{1400, 1050},
{1280, 960},
{1280, 1024},
{1152, 864},
{1024, 768},
{832, 624},
{800, 600},
{720, 400},
{480, 640},
{640, 480},
{640, 400},
{320, 240},
{240, 320},
{160, 160},
{0, 0}
};
EPHYR_LOG("mark");
*rotations = RR_Rotate_All | RR_Reflect_All;
if (!hostx_want_preexisting_window(screen)
&& !hostx_want_fullscreen()) { /* only if no -parent switch */
while (sizes[n].width != 0 && sizes[n].height != 0) {
RRRegisterSize(pScreen,
sizes[n].width,
sizes[n].height,
(sizes[n].width * screen->width_mm) / screen->width,
(sizes[n].height * screen->height_mm) /
screen->height);
n++;
}
}
pSize = RRRegisterSize(pScreen,
screen->width,
screen->height, screen->width_mm, screen->height_mm);
randr = KdSubRotation(scrpriv->randr, screen->randr);
RRSetCurrentConfig(pScreen, randr, 0, pSize);
return TRUE;
}
Bool
ephyrRandRSetConfig(ScreenPtr pScreen,
Rotation randr, int rate, RRScreenSizePtr pSize)
{
KdScreenPriv(pScreen);
KdScreenInfo *screen = pScreenPriv->screen;
EphyrScrPriv *scrpriv = screen->driver;
Bool wasEnabled = pScreenPriv->enabled;
EphyrScrPriv oldscr;
int oldwidth, oldheight, oldmmwidth, oldmmheight;
Bool oldshadow;
int newwidth, newheight;
if (screen->randr & (RR_Rotate_0 | RR_Rotate_180)) {
newwidth = pSize->width;
newheight = pSize->height;
}
else {
newwidth = pSize->height;
newheight = pSize->width;
}
if (wasEnabled)
KdDisableScreen(pScreen);
oldscr = *scrpriv;
oldwidth = screen->width;
oldheight = screen->height;
oldmmwidth = pScreen->mmWidth;
oldmmheight = pScreen->mmHeight;
oldshadow = scrpriv->shadow;
/*
* Set new configuration
*/
/*
* We need to store the rotation value for pointer coords transformation;
* though initially the pointer and fb rotation are identical, when we map
* the fb, the screen will be reinitialized and return into an unrotated
* state (presumably the HW is taking care of the rotation of the fb), but the
* pointer still needs to be transformed.
*/
ephyrRandr = KdAddRotation(screen->randr, randr);
scrpriv->randr = ephyrRandr;
ephyrUnmapFramebuffer(screen);
screen->width = newwidth;
screen->height = newheight;
if (!ephyrMapFramebuffer(screen))
goto bail4;
/* FIXME below should go in own call */
if (oldshadow)
KdShadowUnset(screen->pScreen);
else
ephyrUnsetInternalDamage(screen->pScreen);
if (scrpriv->shadow) {
if (!KdShadowSet(screen->pScreen,
scrpriv->randr, ephyrShadowUpdate, ephyrWindowLinear))
goto bail4;
}
else {
/* Without shadow fb ( non rotated ) we need
* to use damage to efficiently update display
* via signal regions what to copy from 'fb'.
*/
if (!ephyrSetInternalDamage(screen->pScreen))
goto bail4;
}
ephyrSetScreenSizes(screen->pScreen);
/*
* Set frame buffer mapping
*/
(*pScreen->ModifyPixmapHeader) (fbGetScreenPixmap(pScreen),
pScreen->width,
pScreen->height,
screen->fb.depth,
screen->fb.bitsPerPixel,
screen->fb.byteStride,
screen->fb.frameBuffer);
/* set the subpixel order */
KdSetSubpixelOrder(pScreen, scrpriv->randr);
if (wasEnabled)
KdEnableScreen(pScreen);
RRScreenSizeNotify(pScreen);
return TRUE;
bail4:
EPHYR_LOG("bailed");
ephyrUnmapFramebuffer(screen);
*scrpriv = oldscr;
(void) ephyrMapFramebuffer(screen);
pScreen->width = oldwidth;
pScreen->height = oldheight;
pScreen->mmWidth = oldmmwidth;
pScreen->mmHeight = oldmmheight;
if (wasEnabled)
KdEnableScreen(pScreen);
return FALSE;
}
Bool
ephyrRandRInit(ScreenPtr pScreen)
{
rrScrPrivPtr pScrPriv;
if (!RRScreenInit(pScreen))
return FALSE;
pScrPriv = rrGetScrPriv(pScreen);
pScrPriv->rrGetInfo = ephyrRandRGetInfo;
pScrPriv->rrSetConfig = ephyrRandRSetConfig;
return TRUE;
}
static Bool
ephyrResizeScreen (ScreenPtr pScreen,
int newwidth,
int newheight)
{
KdScreenPriv(pScreen);
KdScreenInfo *screen = pScreenPriv->screen;
RRScreenSize size = {0};
Bool ret;
int t;
if (screen->randr & (RR_Rotate_90|RR_Rotate_270)) {
t = newwidth;
newwidth = newheight;
newheight = t;
}
if (newwidth == screen->width && newheight == screen->height) {
return FALSE;
}
size.width = newwidth;
size.height = newheight;
ret = ephyrRandRSetConfig (pScreen, screen->randr, 0, &size);
if (ret) {
RROutputPtr output;
output = RRFirstOutput(pScreen);
if (!output)
return FALSE;
RROutputSetModes(output, NULL, 0, 0);
}
return ret;
}
#endif
Bool
ephyrCreateColormap(ColormapPtr pmap)
{
return fbInitializeColormap(pmap);
}
Bool
ephyrInitScreen(ScreenPtr pScreen)
{
KdScreenPriv(pScreen);
KdScreenInfo *screen = pScreenPriv->screen;
EPHYR_LOG("pScreen->myNum:%d\n", pScreen->myNum);
hostx_set_screen_number(screen, pScreen->myNum);
hostx_set_win_title(screen, "(ctrl+shift grabs mouse and keyboard)");
pScreen->CreateColormap = ephyrCreateColormap;
#ifdef XV
if (!ephyrNoXV) {
if (!ephyrInitVideo(pScreen)) {
EPHYR_LOG_ERROR("failed to initialize xvideo\n");
}
else {
EPHYR_LOG("initialized xvideo okay\n");
}
}
#endif /*XV*/
#ifdef XF86DRI
if (!ephyrNoDRI && !host_has_extension(&xcb_xf86dri_id)) {
EPHYR_LOG("host x does not support DRI. Disabling DRI forwarding\n");
ephyrNoDRI = TRUE;
}
if (!ephyrNoDRI) {
ephyrDRIExtensionInit(pScreen);
ephyrHijackGLXExtension();
}
#endif
return TRUE;
}
Bool
ephyrFinishInitScreen(ScreenPtr pScreen)
{
/* FIXME: Calling this even if not using shadow.
* Seems harmless enough. But may be safer elsewhere.
*/
if (!shadowSetup(pScreen))
return FALSE;
#ifdef RANDR
if (!ephyrRandRInit(pScreen))
return FALSE;
#endif
return TRUE;
}
/**
* Called by kdrive after calling down the
* pScreen->CreateScreenResources() chain, this gives us a chance to
* make any pixmaps after the screen and all extensions have been
* initialized.
*/
Bool
ephyrCreateResources(ScreenPtr pScreen)
{
KdScreenPriv(pScreen);
KdScreenInfo *screen = pScreenPriv->screen;
EphyrScrPriv *scrpriv = screen->driver;
EPHYR_LOG("mark pScreen=%p mynum=%d shadow=%d",
pScreen, pScreen->myNum, scrpriv->shadow);
if (scrpriv->shadow)
return KdShadowSet(pScreen,
scrpriv->randr,
ephyrShadowUpdate, ephyrWindowLinear);
else {
#ifdef GLAMOR
if (ephyr_glamor)
ephyr_glamor_create_screen_resources(pScreen);
#endif
return ephyrSetInternalDamage(pScreen);
}
}
void
ephyrPreserve(KdCardInfo * card)
{
}
Bool
ephyrEnable(ScreenPtr pScreen)
{
return TRUE;
}
Bool
ephyrDPMS(ScreenPtr pScreen, int mode)
{
return TRUE;
}
void
ephyrDisable(ScreenPtr pScreen)
{
}
void
ephyrRestore(KdCardInfo * card)
{
}
void
ephyrScreenFini(KdScreenInfo * screen)
{
EphyrScrPriv *scrpriv = screen->driver;
if (scrpriv->shadow) {
KdShadowFbFree(screen);
}
}
/*
* Port of Mark McLoughlin's Xnest fix for focus in + modifier bug.
* See https://bugs.freedesktop.org/show_bug.cgi?id=3030
*/
void
ephyrUpdateModifierState(unsigned int state)
{
DeviceIntPtr pDev = inputInfo.keyboard;
KeyClassPtr keyc = pDev->key;
int i;
CARD8 mask;
int xkb_state;
if (!pDev)
return;
xkb_state = XkbStateFieldFromRec(&pDev->key->xkbInfo->state);
state = state & 0xff;
if (xkb_state == state)
return;
for (i = 0, mask = 1; i < 8; i++, mask <<= 1) {
int key;
/* Modifier is down, but shouldn't be
*/
if ((xkb_state & mask) && !(state & mask)) {
int count = keyc->modifierKeyCount[i];
for (key = 0; key < MAP_LENGTH; key++)
if (keyc->xkbInfo->desc->map->modmap[key] & mask) {
if (key_is_down(pDev, key, KEY_PROCESSED))
KdEnqueueKeyboardEvent(ephyrKbd, key, TRUE);
if (--count == 0)
break;
}
}
/* Modifier shoud be down, but isn't
*/
if (!(xkb_state & mask) && (state & mask))
for (key = 0; key < MAP_LENGTH; key++)
if (keyc->xkbInfo->desc->map->modmap[key] & mask) {
KdEnqueueKeyboardEvent(ephyrKbd, key, FALSE);
break;
}
}
}
static Bool
ephyrCursorOffScreen(ScreenPtr *ppScreen, int *x, int *y)
{
return FALSE;
}
static void
ephyrCrossScreen(ScreenPtr pScreen, Bool entering)
{
}
ScreenPtr ephyrCursorScreen; /* screen containing the cursor */
static void
ephyrWarpCursor(DeviceIntPtr pDev, ScreenPtr pScreen, int x, int y)
{
OsBlockSIGIO();
ephyrCursorScreen = pScreen;
miPointerWarpCursor(inputInfo.pointer, pScreen, x, y);
OsReleaseSIGIO();
}
miPointerScreenFuncRec ephyrPointerScreenFuncs = {
ephyrCursorOffScreen,
ephyrCrossScreen,
ephyrWarpCursor,
};
#ifdef XF86DRI
/**
* find if the remote window denoted by a_remote
* is paired with an internal Window within the Xephyr server.
* If the remove window is paired with an internal window, send an
* expose event to the client insterested in the internal window expose event.
*
* Pairing happens when a drawable inside Xephyr is associated with
* a GL surface in a DRI environment.
* Look at the function ProcXF86DRICreateDrawable in ephyrdriext.c to
* know a paired window is created.
*
* This is useful to make GL drawables (only windows for now) handle
* expose events and send those events to clients.
*/
static void
ephyrExposePairedWindow(int a_remote)
{
EphyrWindowPair *pair = NULL;
RegionRec reg;
ScreenPtr screen;
if (!findWindowPairFromRemote(a_remote, &pair)) {
EPHYR_LOG("did not find a pair for this window\n");
return;
}
screen = pair->local->drawable.pScreen;
RegionNull(&reg);
RegionCopy(&reg, &pair->local->clipList);
screen->WindowExposures(pair->local, &reg, NullRegion);
RegionUninit(&reg);
}
#endif /* XF86DRI */
static KdScreenInfo *
screen_from_window(Window w)
{
int i = 0;
for (i = 0; i < screenInfo.numScreens; i++) {
ScreenPtr pScreen = screenInfo.screens[i];
KdPrivScreenPtr kdscrpriv = KdGetScreenPriv(pScreen);
KdScreenInfo *screen = kdscrpriv->screen;
EphyrScrPriv *scrpriv = screen->driver;
if (scrpriv->win == w
|| scrpriv->peer_win == w
|| scrpriv->win_pre_existing == w) {
return screen;
}
}
return NULL;
}
static void
ephyrProcessErrorEvent(xcb_generic_event_t *xev)
{
xcb_generic_error_t *e = (xcb_generic_error_t *)xev;
FatalError("X11 error\n"
"Error code: %hhu\n"
"Sequence number: %hu\n"
"Major code: %hhu\tMinor code: %hu\n"
"Error value: %u\n",
e->error_code,
e->sequence,
e->major_code, e->minor_code,
e->resource_id);
}
static void
ephyrProcessExpose(xcb_generic_event_t *xev)
{
xcb_expose_event_t *expose = (xcb_expose_event_t *)xev;
KdScreenInfo *screen = screen_from_window(expose->window);
EphyrScrPriv *scrpriv = screen->driver;
/* Wait for the last expose event in a series of cliprects
* to actually paint our screen.
*/
if (expose->count != 0)
return;
if (scrpriv) {
hostx_paint_rect(scrpriv->screen, 0, 0, 0, 0,
scrpriv->win_width,
scrpriv->win_height);
} else {
EPHYR_LOG_ERROR("failed to get host screen\n");
#ifdef XF86DRI
/*
* We only receive expose events when the expose event
* have be generated for a drawable that is a host X
* window managed by Xephyr. Host X windows managed by
* Xephyr exists for instance when Xephyr is asked to
* create a GL drawable in a DRI environment.
*/
ephyrExposePairedWindow(expose->window);
#endif /* XF86DRI */
}
}
static void
ephyrProcessMouseMotion(xcb_generic_event_t *xev)
{
xcb_motion_notify_event_t *motion = (xcb_motion_notify_event_t *)xev;
KdScreenInfo *screen = screen_from_window(motion->event);
if (!ephyrMouse ||
!((EphyrPointerPrivate *) ephyrMouse->driverPrivate)->enabled) {
EPHYR_LOG("skipping mouse motion:%d\n", screen->pScreen->myNum);
return;
}
if (ephyrCursorScreen != screen->pScreen) {
EPHYR_LOG("warping mouse cursor. "
"cur_screen%d, motion_screen:%d\n",
ephyrCursorScreen, screen->pScreen->myNum);
ephyrWarpCursor(inputInfo.pointer, screen->pScreen,
motion->event_x, motion->event_y);
}
else {
int x = 0, y = 0;
#ifdef XF86DRI
EphyrWindowPair *pair = NULL;
#endif
EPHYR_LOG("enqueuing mouse motion:%d\n", screen->pScreen->myNum);
x = motion->event_x;
y = motion->event_y;
EPHYR_LOG("initial (x,y):(%d,%d)\n", x, y);
#ifdef XF86DRI
EPHYR_LOG("is this window peered by a gl drawable ?\n");
if (findWindowPairFromRemote(motion->event, &pair)) {
EPHYR_LOG("yes, it is peered\n");
x += pair->local->drawable.x;
y += pair->local->drawable.y;
}
else {
EPHYR_LOG("no, it is not peered\n");
}
EPHYR_LOG("final (x,y):(%d,%d)\n", x, y);
#endif
/* convert coords into desktop-wide coordinates.
* fill_pointer_events will convert that back to
* per-screen coordinates where needed */
x += screen->pScreen->x;
y += screen->pScreen->y;
KdEnqueuePointerEvent(ephyrMouse, mouseState | KD_POINTER_DESKTOP, x, y, 0);
}
}
static void
ephyrProcessButtonPress(xcb_generic_event_t *xev)
{
xcb_button_press_event_t *button = (xcb_button_press_event_t *)xev;
if (!ephyrMouse ||
!((EphyrPointerPrivate *) ephyrMouse->driverPrivate)->enabled) {
EPHYR_LOG("skipping mouse press:%d\n", screen_from_window(button->event)->pScreen->myNum);
return;
}
ephyrUpdateModifierState(button->state);
/* This is a bit hacky. will break for button 5 ( defined as 0x10 )
* Check KD_BUTTON defines in kdrive.h
*/
mouseState |= 1 << (button->detail - 1);
EPHYR_LOG("enqueuing mouse press:%d\n", screen_from_window(button->event)->pScreen->myNum);
KdEnqueuePointerEvent(ephyrMouse, mouseState | KD_MOUSE_DELTA, 0, 0, 0);
}
static void
ephyrProcessButtonRelease(xcb_generic_event_t *xev)
{
xcb_button_press_event_t *button = (xcb_button_press_event_t *)xev;
if (!ephyrMouse ||
!((EphyrPointerPrivate *) ephyrMouse->driverPrivate)->enabled) {
return;
}
ephyrUpdateModifierState(button->state);
mouseState &= ~(1 << (button->detail - 1));
EPHYR_LOG("enqueuing mouse release:%d\n", screen_from_window(button->event)->pScreen->myNum);
KdEnqueuePointerEvent(ephyrMouse, mouseState | KD_MOUSE_DELTA, 0, 0, 0);
}
/* Xephyr wants ctrl+shift to grab the window, but that conflicts with
ctrl+alt+shift key combos. Remember the modifier state on key presses and
releases, if mod1 is pressed, we need ctrl, shift and mod1 released
before we allow a shift-ctrl grab activation.
note: a key event contains the mask _before_ the current key takes
effect, so mod1_was_down will be reset on the first key press after all
three were released, not on the last release. That'd require some more
effort.
*/
static int
ephyrUpdateGrabModifierState(int state)
{
static int mod1_was_down = 0;
if ((state & (XCB_MOD_MASK_CONTROL|XCB_MOD_MASK_SHIFT|XCB_MOD_MASK_1)) == 0)
mod1_was_down = 0;
else if (state & XCB_MOD_MASK_1)
mod1_was_down = 1;
return mod1_was_down;
}
static void
ephyrProcessKeyPress(xcb_generic_event_t *xev)
{
xcb_key_press_event_t *key = (xcb_key_press_event_t *)xev;
if (!ephyrKbd ||
!((EphyrKbdPrivate *) ephyrKbd->driverPrivate)->enabled) {
return;
}
ephyrUpdateGrabModifierState(key->state);
ephyrUpdateModifierState(key->state);
KdEnqueueKeyboardEvent(ephyrKbd, key->detail, FALSE);
}
static void
ephyrProcessKeyRelease(xcb_generic_event_t *xev)
{
xcb_connection_t *conn = hostx_get_xcbconn();
xcb_key_release_event_t *key = (xcb_key_release_event_t *)xev;
static xcb_key_symbols_t *keysyms;
static int grabbed_screen = -1;
int mod1_down = ephyrUpdateGrabModifierState(key->state);
if (!keysyms)
keysyms = xcb_key_symbols_alloc(conn);
if (((xcb_key_symbols_get_keysym(keysyms, key->detail, 0) == XK_Shift_L
|| xcb_key_symbols_get_keysym(keysyms, key->detail, 0) == XK_Shift_R)
&& (key->state & XCB_MOD_MASK_CONTROL)) ||
((xcb_key_symbols_get_keysym(keysyms, key->detail, 0) == XK_Control_L
|| xcb_key_symbols_get_keysym(keysyms, key->detail, 0) == XK_Control_R)
&& (key->state & XCB_MOD_MASK_SHIFT))) {
KdScreenInfo *screen = screen_from_window(key->event);
EphyrScrPriv *scrpriv = screen->driver;
if (grabbed_screen != -1) {
xcb_ungrab_keyboard(conn, XCB_TIME_CURRENT_TIME);
xcb_ungrab_pointer(conn, XCB_TIME_CURRENT_TIME);
grabbed_screen = -1;
hostx_set_win_title(screen,
"(ctrl+shift grabs mouse and keyboard)");
}
else if (!mod1_down) {
/* Attempt grab */
xcb_grab_keyboard_cookie_t kbgrabc =
xcb_grab_keyboard(conn,
TRUE,
scrpriv->win,
XCB_TIME_CURRENT_TIME,
XCB_GRAB_MODE_ASYNC,
XCB_GRAB_MODE_ASYNC);
xcb_grab_keyboard_reply_t *kbgrabr;
xcb_grab_pointer_cookie_t pgrabc =
xcb_grab_pointer(conn,
TRUE,
scrpriv->win,
0,
XCB_GRAB_MODE_ASYNC,
XCB_GRAB_MODE_ASYNC,
scrpriv->win,
XCB_NONE,
XCB_TIME_CURRENT_TIME);
xcb_grab_pointer_reply_t *pgrabr;
kbgrabr = xcb_grab_keyboard_reply(conn, kbgrabc, NULL);
if (!kbgrabr || kbgrabr->status != XCB_GRAB_STATUS_SUCCESS) {
xcb_discard_reply(conn, pgrabc.sequence);
xcb_ungrab_pointer(conn, XCB_TIME_CURRENT_TIME);
} else {
pgrabr = xcb_grab_pointer_reply(conn, pgrabc, NULL);
if (!pgrabr || pgrabr->status != XCB_GRAB_STATUS_SUCCESS)
{
xcb_ungrab_keyboard(conn,
XCB_TIME_CURRENT_TIME);
} else {
grabbed_screen = scrpriv->mynum;
hostx_set_win_title
(screen,
"(ctrl+shift releases mouse and keyboard)");
}
}
}
}
if (!ephyrKbd ||
!((EphyrKbdPrivate *) ephyrKbd->driverPrivate)->enabled) {
return;
}
/* Still send the release event even if above has happened server
* will get confused with just an up event. Maybe it would be
* better to just block shift+ctrls getting to kdrive all
* together.
*/
ephyrUpdateModifierState(key->state);
KdEnqueueKeyboardEvent(ephyrKbd, key->detail, TRUE);
}
static void
ephyrProcessConfigureNotify(xcb_generic_event_t *xev)
{
xcb_configure_notify_event_t *configure =
(xcb_configure_notify_event_t *)xev;
KdScreenInfo *screen = screen_from_window(configure->window);
EphyrScrPriv *scrpriv = screen->driver;
if (!scrpriv ||
(scrpriv->win_pre_existing == None && !EphyrWantResize)) {
return;
}
#ifdef RANDR
ephyrResizeScreen(screen->pScreen, configure->width, configure->height);
#endif /* RANDR */
}
void
ephyrPoll(void)
{
xcb_connection_t *conn = hostx_get_xcbconn();
while (TRUE) {
xcb_generic_event_t *xev = xcb_poll_for_event(conn);
if (!xev) {
/* If our XCB connection has died (for example, our window was
* closed), exit now.
*/
if (xcb_connection_has_error(conn)) {
CloseWellKnownConnections();
OsCleanup(1);
exit(1);
}
break;
}
switch (xev->response_type & 0x7f) {
case 0:
ephyrProcessErrorEvent(xev);
break;
case XCB_EXPOSE:
ephyrProcessExpose(xev);
break;
case XCB_MOTION_NOTIFY:
ephyrProcessMouseMotion(xev);
break;
case XCB_KEY_PRESS:
ephyrProcessKeyPress(xev);
break;
case XCB_KEY_RELEASE:
ephyrProcessKeyRelease(xev);
break;
case XCB_BUTTON_PRESS:
ephyrProcessButtonPress(xev);
break;
case XCB_BUTTON_RELEASE:
ephyrProcessButtonRelease(xev);
break;
case XCB_CONFIGURE_NOTIFY:
ephyrProcessConfigureNotify(xev);
break;
}
if (ephyr_glamor)
ephyr_glamor_process_event(xev);
free(xev);
}
}
void
ephyrCardFini(KdCardInfo * card)
{
EphyrPriv *priv = card->driver;
free(priv);
}
void
ephyrGetColors(ScreenPtr pScreen, int n, xColorItem * pdefs)
{
/* XXX Not sure if this is right */
EPHYR_LOG("mark");
while (n--) {
pdefs->red = 0;
pdefs->green = 0;
pdefs->blue = 0;
pdefs++;
}
}
void
ephyrPutColors(ScreenPtr pScreen, int n, xColorItem * pdefs)
{
KdScreenPriv(pScreen);
KdScreenInfo *screen = pScreenPriv->screen;
EphyrScrPriv *scrpriv = screen->driver;
int min, max, p;
/* XXX Not sure if this is right */
min = 256;
max = 0;
while (n--) {
p = pdefs->pixel;
if (p < min)
min = p;
if (p > max)
max = p;
hostx_set_cmap_entry(p,
pdefs->red >> 8,
pdefs->green >> 8, pdefs->blue >> 8);
pdefs++;
}
if (scrpriv->pDamage) {
BoxRec box;
RegionRec region;
box.x1 = 0;
box.y1 = 0;
box.x2 = pScreen->width;
box.y2 = pScreen->height;
RegionInit(&region, &box, 1);
DamageReportDamage(scrpriv->pDamage, &region);
RegionUninit(&region);
}
}
/* Mouse calls */
static Status
MouseInit(KdPointerInfo * pi)
{
pi->driverPrivate = (EphyrPointerPrivate *)
calloc(sizeof(EphyrPointerPrivate), 1);
((EphyrPointerPrivate *) pi->driverPrivate)->enabled = FALSE;
pi->nAxes = 3;
pi->nButtons = 32;
free(pi->name);
pi->name = strdup("Xephyr virtual mouse");
/*
* Must transform pointer coords since the pointer position
* relative to the Xephyr window is controlled by the host server and
* remains constant regardless of any rotation applied to the Xephyr screen.
*/
pi->transformCoordinates = TRUE;
ephyrMouse = pi;
return Success;
}
static Status
MouseEnable(KdPointerInfo * pi)
{
((EphyrPointerPrivate *) pi->driverPrivate)->enabled = TRUE;
return Success;
}
static void
MouseDisable(KdPointerInfo * pi)
{
((EphyrPointerPrivate *) pi->driverPrivate)->enabled = FALSE;
return;
}
static void
MouseFini(KdPointerInfo * pi)
{
ephyrMouse = NULL;
return;
}
KdPointerDriver EphyrMouseDriver = {
"ephyr",
MouseInit,
MouseEnable,
MouseDisable,
MouseFini,
NULL,
};
/* Keyboard */
static Status
EphyrKeyboardInit(KdKeyboardInfo * ki)
{
ki->driverPrivate = (EphyrKbdPrivate *)
calloc(sizeof(EphyrKbdPrivate), 1);
hostx_load_keymap();
if (!ephyrKeySyms.minKeyCode) {
ErrorF("Couldn't load keymap from host\n");
return BadAlloc;
}
ki->minScanCode = ephyrKeySyms.minKeyCode;
ki->maxScanCode = ephyrKeySyms.maxKeyCode;
free(ki->name);
ki->name = strdup("Xephyr virtual keyboard");
ephyrKbd = ki;
return Success;
}
static Status
EphyrKeyboardEnable(KdKeyboardInfo * ki)
{
((EphyrKbdPrivate *) ki->driverPrivate)->enabled = TRUE;
return Success;
}
static void
EphyrKeyboardDisable(KdKeyboardInfo * ki)
{
((EphyrKbdPrivate *) ki->driverPrivate)->enabled = FALSE;
}
static void
EphyrKeyboardFini(KdKeyboardInfo * ki)
{
ephyrKbd = NULL;
return;
}
static void
EphyrKeyboardLeds(KdKeyboardInfo * ki, int leds)
{
}
static void
EphyrKeyboardBell(KdKeyboardInfo * ki, int volume, int frequency, int duration)
{
}
KdKeyboardDriver EphyrKeyboardDriver = {
"ephyr",
EphyrKeyboardInit,
EphyrKeyboardEnable,
EphyrKeyboardLeds,
EphyrKeyboardBell,
EphyrKeyboardDisable,
EphyrKeyboardFini,
NULL,
};
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