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xserver-multidpi
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present: Add Present extension 

Provides both a software implementation using timers and driver hooks
to base everything on vblank intervals.

Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
This commit is contained in:
Keith Packard 2013-07-11 16:11:57 -07:00
parent 5631382988
commit 5c5c1b7798
18 changed files with 2432 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
Makefile.am
View File

@ -21,6 +21,10 @@ if DRI3
DRI3_DIR=dri3
endif
if PRESENT
PRESENT_DIR=present
endif
SUBDIRS = \
doc \
man \
@ -42,6 +46,7 @@ SUBDIRS = \
damageext \
$(COMPOSITE_DIR) \
$(GLX_DIR) \
$(PRESENT_DIR) \
$(DRI3_DIR) \
exa \
config \

23
configure.ac
View File

@ -614,6 +614,7 @@ AC_ARG_ENABLE(glx, AS_HELP_STRING([--disable-glx], [Build GLX extensi
AC_ARG_ENABLE(dri, AS_HELP_STRING([--enable-dri], [Build DRI extension (default: auto)]), [DRI=$enableval])
AC_ARG_ENABLE(dri2, AS_HELP_STRING([--enable-dri2], [Build DRI2 extension (default: auto)]), [DRI2=$enableval], [DRI2=auto])
AC_ARG_ENABLE(dri3, AS_HELP_STRING([--enable-dri3], [Build DRI3 extension (default: auto)]), [DRI3=$enableval], [DRI3=auto])
AC_ARG_ENABLE(present, AS_HELP_STRING([--disable-present], [Build Present extension (default: enabled)]), [PRESENT=$enableval], [PRESENT=yes])
AC_ARG_ENABLE(xinerama, AS_HELP_STRING([--disable-xinerama], [Build Xinerama extension (default: enabled)]), [XINERAMA=$enableval], [XINERAMA=yes])
AC_ARG_ENABLE(xf86vidmode, AS_HELP_STRING([--disable-xf86vidmode], [Build XF86VidMode extension (default: auto)]), [XF86VIDMODE=$enableval], [XF86VIDMODE=auto])
AC_ARG_ENABLE(xace, AS_HELP_STRING([--disable-xace], [Build X-ACE extension (default: enabled)]), [XACE=$enableval], [XACE=yes])
@ -807,6 +808,7 @@ DAMAGEPROTO="damageproto >= 1.1"
XCMISCPROTO="xcmiscproto >= 1.2.0"
BIGREQSPROTO="bigreqsproto >= 1.1.0"
XTRANS="xtrans >= 1.2.2"
PRESENTPROTO="presentproto >= 1.0"
dnl List of libraries that require a specific version
LIBAPPLEWM="applewm >= 1.4"
@ -1160,6 +1162,14 @@ if test "x$DRI2" = xyes; then
fi
AM_CONDITIONAL(DRI2_AIGLX, test "x$DRI2_AIGLX" = xyes)
AM_CONDITIONAL(PRESENT, [test "x$PRESENT" = xyes])
if test "x$PRESENT" = xyes; then
AC_DEFINE(PRESENT, 1, [Support Present extension])
REQUIRED_MODULES="$REQUIRED_MODULES $PRESENTPROTO"
SDK_REQUIRED_MODULES="$SDK_REQUIRED_MODULES $PRESENTPROTO"
PRESENT_INC='-I$(top_srcdir)/present'
PRESENT_LIB='$(top_builddir)/present/libpresent.la'
fi
AM_CONDITIONAL(XINERAMA, [test "x$XINERAMA" = xyes])
if test "x$XINERAMA" = xyes; then
@ -1584,7 +1594,7 @@ AC_EGREP_CPP([I_AM_SVR4],[
AC_DEFINE([SVR4],1,[Define to 1 on systems derived from System V Release 4])
AC_MSG_RESULT([yes])], AC_MSG_RESULT([no]))
XSERVER_CFLAGS="$XSERVER_CFLAGS $CORE_INCS $XEXT_INC $COMPOSITE_INC $DAMAGE_INC $FIXES_INC $XI_INC $MI_INC $MIEXT_SYNC_INC $MIEXT_SHADOW_INC $MIEXT_LAYER_INC $MIEXT_DAMAGE_INC $RENDER_INC $RANDR_INC $FB_INC $DBE_INC"
XSERVER_CFLAGS="$XSERVER_CFLAGS $CORE_INCS $XEXT_INC $COMPOSITE_INC $DAMAGE_INC $FIXES_INC $XI_INC $MI_INC $MIEXT_SYNC_INC $MIEXT_SHADOW_INC $MIEXT_LAYER_INC $MIEXT_DAMAGE_INC $RENDER_INC $RANDR_INC $FB_INC $DBE_INC $PRESENT_INC"
dnl ---------------------------------------------------------------------------
dnl DDX section.
@ -1597,7 +1607,7 @@ AC_MSG_RESULT([$XVFB])
AM_CONDITIONAL(XVFB, [test "x$XVFB" = xyes])
if test "x$XVFB" = xyes; then
XVFB_LIBS="$FB_LIB $FIXES_LIB $XEXT_LIB $DBE_LIB $RECORD_LIB $GLX_LIBS $RANDR_LIB $RENDER_LIB $DAMAGE_LIB $DRI3_LIB $MIEXT_SYNC_LIB $MIEXT_DAMAGE_LIB $MIEXT_SHADOW_LIB $XI_LIB $XKB_LIB $XKB_STUB_LIB $COMPOSITE_LIB"
XVFB_LIBS="$FB_LIB $FIXES_LIB $XEXT_LIB $DBE_LIB $RECORD_LIB $GLX_LIBS $RANDR_LIB $RENDER_LIB $DAMAGE_LIB $DRI3_LIB $PRESENT_LIB $MIEXT_SYNC_LIB $MIEXT_DAMAGE_LIB $MIEXT_SHADOW_LIB $XI_LIB $XKB_LIB $XKB_STUB_LIB $COMPOSITE_LIB"
XVFB_SYS_LIBS="$XVFBMODULES_LIBS $GLX_SYS_LIBS"
AC_SUBST([XVFB_LIBS])
AC_SUBST([XVFB_SYS_LIBS])
@ -1618,7 +1628,7 @@ if test "x$XNEST" = xyes; then
if test "x$have_xnest" = xno; then
AC_MSG_ERROR([Xnest build explicitly requested, but required modules not found.])
fi
XNEST_LIBS="$FB_LIB $FIXES_LIB $MI_LIB $XEXT_LIB $DBE_LIB $RECORD_LIB $GLX_LIBS $RANDR_LIB $RENDER_LIB $DAMAGE_LIB $DRI3_LIB $MIEXT_SYNC_LIB $MIEXT_DAMAGE_LIB $MIEXT_SHADOW_LIB $XI_LIB $XKB_LIB $XKB_STUB_LIB $COMPOSITE_LIB $MAIN_LIB $DIX_LIB $OS_LIB"
XNEST_LIBS="$FB_LIB $FIXES_LIB $MI_LIB $XEXT_LIB $DBE_LIB $RECORD_LIB $GLX_LIBS $RANDR_LIB $RENDER_LIB $DAMAGE_LIB $DRI3_LIB $PRESENT_LIB $MIEXT_SYNC_LIB $MIEXT_DAMAGE_LIB $MIEXT_SHADOW_LIB $XI_LIB $XKB_LIB $XKB_STUB_LIB $COMPOSITE_LIB $MAIN_LIB $DIX_LIB $OS_LIB"
XNEST_SYS_LIBS="$XNESTMODULES_LIBS $GLX_SYS_LIBS"
AC_SUBST([XNEST_LIBS])
AC_SUBST([XNEST_SYS_LIBS])
@ -1643,7 +1653,7 @@ if test "x$XORG" = xyes; then
XORG_OSINCS='-I$(top_srcdir)/hw/xfree86/os-support -I$(top_srcdir)/hw/xfree86/os-support/bus -I$(top_srcdir)/os'
XORG_INCS="$XORG_DDXINCS $XORG_OSINCS"
XORG_CFLAGS="$XORGSERVER_CFLAGS -DHAVE_XORG_CONFIG_H"
XORG_LIBS="$COMPOSITE_LIB $FIXES_LIB $XEXT_LIB $DBE_LIB $RECORD_LIB $RANDR_LIB $RENDER_LIB $DAMAGE_LIB $DRI3_LIB $MIEXT_SYNC_LIB $MIEXT_DAMAGE_LIB $XI_LIB $XKB_LIB"
XORG_LIBS="$COMPOSITE_LIB $FIXES_LIB $XEXT_LIB $DBE_LIB $RECORD_LIB $RANDR_LIB $RENDER_LIB $DAMAGE_LIB $DRI3_LIB $PRESENT_LIB $MIEXT_SYNC_LIB $MIEXT_DAMAGE_LIB $XI_LIB $XKB_LIB"
dnl ==================================================================
dnl symbol visibility
@ -2056,7 +2066,7 @@ if test "x$DMX" = xyes; then
fi
DMX_INCLUDES="$XEXT_INC $RENDER_INC $RECORD_INC"
XDMX_CFLAGS="$DMXMODULES_CFLAGS"
XDMX_LIBS="$FB_LIB $MI_LIB $XEXT_LIB $RENDER_LIB $RECORD_LIB $XI_LIB $XKB_LIB $XKB_STUB_LIB $DRI3_LIB $MIEXT_SYNC_LIB $MIEXT_SHADOW_LIB $MIEXT_DAMAGE_LIB $COMPOSITE_LIB $DAMAGE_LIB $MAIN_LIB $DIX_LIB $CONFIG_LIB $OS_LIB $FIXES_LIB"
XDMX_LIBS="$FB_LIB $MI_LIB $XEXT_LIB $RENDER_LIB $RECORD_LIB $XI_LIB $XKB_LIB $XKB_STUB_LIB $DRI3_LIB $PRESENT_LIB $MIEXT_SYNC_LIB $MIEXT_SHADOW_LIB $MIEXT_DAMAGE_LIB $COMPOSITE_LIB $DAMAGE_LIB $MAIN_LIB $DIX_LIB $CONFIG_LIB $OS_LIB $FIXES_LIB"
XDMX_SYS_LIBS="$DMXMODULES_LIBS"
AC_SUBST([XDMX_CFLAGS])
AC_SUBST([XDMX_LIBS])
@ -2165,7 +2175,7 @@ if test "$KDRIVE" = yes; then
KDRIVE_CFLAGS="$XSERVER_CFLAGS -DHAVE_KDRIVE_CONFIG_H $TSLIB_CFLAGS"
KDRIVE_PURE_LIBS="$FB_LIB $MI_LIB $FIXES_LIB $XEXT_LIB $DBE_LIB $RECORD_LIB $GLX_LIBS $RANDR_LIB $RENDER_LIB $DAMAGE_LIB $DRI3_LIB $MIEXT_SYNC_LIB $MIEXT_DAMAGE_LIB $MIEXT_SHADOW_LIB $XI_LIB $XKB_LIB $XKB_STUB_LIB $COMPOSITE_LIB $OS_LIB"
KDRIVE_PURE_LIBS="$FB_LIB $MI_LIB $FIXES_LIB $XEXT_LIB $DBE_LIB $RECORD_LIB $GLX_LIBS $RANDR_LIB $RENDER_LIB $DAMAGE_LIB $DRI3_LIB $PRESENT_LIB $MIEXT_SYNC_LIB $MIEXT_DAMAGE_LIB $MIEXT_SHADOW_LIB $XI_LIB $XKB_LIB $XKB_STUB_LIB $COMPOSITE_LIB $OS_LIB"
KDRIVE_LIB='$(top_builddir)/hw/kdrive/src/libkdrive.la'
case $host_os in
*linux*)
@ -2288,6 +2298,7 @@ Xi/Makefile
xfixes/Makefile
exa/Makefile
dri3/Makefile
present/Makefile
hw/Makefile
hw/xfree86/Makefile
hw/xfree86/common/Makefile

3
hw/dmx/dmxextension.c
View File

@ -68,6 +68,9 @@
* _any_ header files. */
extern FontPtr defaultFont;
/* Hack to get Present to build (present requires RandR) */
RESTYPE RRCrtcType;
/** This routine provides information to the DMX protocol extension
* about a particular screen. */
Bool

3
include/dix-config.h.in
View File

@ -255,6 +255,9 @@
/* Internal define for Xinerama */
#undef PANORAMIX
/* Support Present extension */
#undef PRESENT
/* Overall prefix */
#undef PROJECTROOT

5
include/extinit.h
View File

@ -181,4 +181,9 @@ extern void XvMCExtensionInit(void);
extern void dri3_extension_init(void);
#endif
#if defined(PRESENT)
#include <X11/extensions/presentproto.h>
#include "presentext.h"
#endif
#endif

3
include/xorg-server.h.in
View File

@ -70,6 +70,9 @@
/* Internal define for Xinerama */
#undef PANORAMIX
/* Support Present extension */
#undef PRESENT
/* Support RANDR extension */
#undef RANDR

3
mi/miinitext.c
View File

@ -287,7 +287,10 @@ static ExtensionModule staticExtensions[] = {
#ifdef DPMSExtension
{DPMSExtensionInit, DPMSExtensionName, &noDPMSExtension},
#endif
{present_extension_init, PRESENT_NAME, NULL},
#ifdef DRI3
{dri3_extension_init, DRI3_NAME, NULL},
#endif
#ifdef RES
{ResExtensionInit, XRES_NAME, &noResExtension},
#endif

17
present/Makefile.am Normal file
View File

@ -0,0 +1,17 @@
noinst_LTLIBRARIES = libpresent.la
AM_CFLAGS = \
-DHAVE_XORG_CONFIG_H \
@DIX_CFLAGS@ @XORG_CFLAGS@
libpresent_la_SOURCES = \
present.h \
present.c \
present_event.c \
present_fake.c \
present_fence.c \
present_notify.c \
present_priv.h \
present_request.c \
present_screen.c
sdk_HEADERS = present.h presentext.h

775
present/present.c Normal file
View File

@ -0,0 +1,775 @@
/*
* Copyright © 2013 Keith Packard
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that copyright
* notice and this permission notice appear in supporting documentation, and
* that the name of the copyright holders not be used in advertising or
* publicity pertaining to distribution of the software without specific,
* written prior permission. The copyright holders make no representations
* about the suitability of this software for any purpose. It is provided "as
* is" without express or implied warranty.
*
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
* OF THIS SOFTWARE.
*/
#ifdef HAVE_XORG_CONFIG_H
#include <xorg-config.h>
#endif
#include "present_priv.h"
#include <gcstruct.h>
#include <misync.h>
#include <misyncstr.h>
#ifdef MONOTONIC_CLOCK
#include <time.h>
#endif
static uint64_t present_event_id;
static struct xorg_list present_exec_queue;
static struct xorg_list present_flip_queue;
#if 0
#define DebugPresent(x) ErrorF x
#else
#define DebugPresent(x)
#endif
/*
* Copies the update region from a pixmap to the target drawable
*/
static void
present_copy_region(DrawablePtr drawable,
PixmapPtr pixmap,
RegionPtr update,
int16_t x_off,
int16_t y_off)
{
ScreenPtr screen = drawable->pScreen;
GCPtr gc;
gc = GetScratchGC(drawable->depth, screen);
if (update) {
ChangeGCVal changes[2];
changes[0].val = x_off;
changes[1].val = y_off;
ChangeGC(serverClient, gc,
GCClipXOrigin|GCClipYOrigin,
changes);
(*gc->funcs->ChangeClip)(gc, CT_REGION, update, 0);
}
ValidateGC(drawable, gc);
(*gc->ops->CopyArea)(&pixmap->drawable,
drawable,
gc,
0, 0,
pixmap->drawable.width, pixmap->drawable.height,
x_off, y_off);
if (update)
(*gc->funcs->ChangeClip)(gc, CT_NONE, NULL, 0);
FreeScratchGC(gc);
}
static Bool
present_check_flip(RRCrtcPtr crtc,
WindowPtr window,
PixmapPtr pixmap,
Bool sync_flip,
RegionPtr valid,
int16_t x_off,
int16_t y_off)
{
ScreenPtr screen = window->drawable.pScreen;
WindowPtr root = screen->root;
present_screen_priv_ptr screen_priv = present_screen_priv(screen);
if (!screen_priv)
return FALSE;
if (!screen_priv->info)
return FALSE;
if (!crtc)
return FALSE;
/* Check to see if the driver supports flips at all */
if (!screen_priv->info->flip)
return FALSE;
/* Can't pend a flip while unflipping */
if (screen_priv->unflip_event_id) {
return FALSE;
}
/* Can't have two pending flips at the same time */
if (screen_priv->flip_pending) {
return FALSE;
}
/* Make sure the window hasn't been redirected with Composite */
if (screen->GetWindowPixmap(window) != screen->GetScreenPixmap(screen))
return FALSE;
/* Check for full-screen window */
if (!RegionEqual(&window->clipList, &root->winSize)) {
return FALSE;
}
/* Source pixmap must align with window exactly */
if (x_off || y_off) {
return FALSE;
}
/* Make sure the area marked as valid fills the screen */
if (valid && !RegionEqual(valid, &root->winSize)) {
return FALSE;
}
/* Does the window match the pixmap exactly? */
if (window->drawable.x != 0 || window->drawable.y != 0 ||
#ifdef COMPOSITE
window->drawable.x != pixmap->screen_x || window->drawable.y != pixmap->screen_y ||
#endif
window->drawable.width != pixmap->drawable.width ||
window->drawable.height != pixmap->drawable.height) {
return FALSE;
}
/* Ask the driver for permission */
if (screen_priv->info->check_flip) {
if (!(*screen_priv->info->check_flip) (crtc, window, pixmap, sync_flip)) {
return FALSE;
}
}
return TRUE;
}
static Bool
present_flip(RRCrtcPtr crtc,
uint64_t event_id,
uint64_t target_msc,
PixmapPtr pixmap,
Bool sync_flip)
{
ScreenPtr screen = crtc->pScreen;
present_screen_priv_ptr screen_priv = present_screen_priv(screen);
return (*screen_priv->info->flip) (crtc, event_id, target_msc, pixmap, sync_flip);
}
static void
present_vblank_notify(present_vblank_ptr vblank, CARD8 kind, CARD8 mode, uint64_t ust, uint64_t crtc_msc)
{
int n;
present_send_complete_notify(vblank->window, kind, mode, vblank->serial, ust, crtc_msc - vblank->msc_offset);
for (n = 0; n < vblank->num_notifies; n++) {
WindowPtr window = vblank->notifies[n].window;
CARD32 serial = vblank->notifies[n].serial;
if (window)
present_send_complete_notify(window, kind, mode, serial, ust, crtc_msc - vblank->msc_offset);
}
}
static void
present_pixmap_idle(PixmapPtr pixmap, WindowPtr window, CARD32 serial, struct present_fence *present_fence)
{
present_fence_set_triggered(present_fence);
present_send_idle_notify(window, serial, pixmap, present_fence);
}
RRCrtcPtr
present_get_crtc(WindowPtr window)
{
ScreenPtr screen = window->drawable.pScreen;
present_screen_priv_ptr screen_priv = present_screen_priv(screen);
if (!screen_priv)
return NULL;
if (!screen_priv->info)
return NULL;
return (*screen_priv->info->get_crtc)(window);
}
uint32_t
present_query_capabilities(RRCrtcPtr crtc)
{
present_screen_priv_ptr screen_priv;
if (!crtc)
return 0;
screen_priv = present_screen_priv(crtc->pScreen);
if (!screen_priv)
return 0;
if (!screen_priv->info)
return 0;
return screen_priv->info->capabilities;
}
static int
present_get_ust_msc(WindowPtr window, RRCrtcPtr crtc, uint64_t *ust, uint64_t *msc)
{
ScreenPtr screen = window->drawable.pScreen;
present_screen_priv_ptr screen_priv = present_screen_priv(screen);
if (crtc == NULL)
return present_fake_get_ust_msc(screen, ust, msc);
else
return (*screen_priv->info->get_ust_msc)(crtc, ust, msc);
}
static void
present_flush(WindowPtr window)
{
ScreenPtr screen = window->drawable.pScreen;
present_screen_priv_ptr screen_priv = present_screen_priv(screen);
if (!screen_priv)
return;
if (!screen_priv->info)
return;
(*screen_priv->info->flush) (window);
}
static int
present_queue_vblank(ScreenPtr screen,
RRCrtcPtr crtc,
uint64_t event_id,
uint64_t msc)
{
Bool ret;
if (crtc == NULL)
ret = present_fake_queue_vblank(screen, event_id, msc);
else
{
present_screen_priv_ptr screen_priv = present_screen_priv(screen);
ret = (*screen_priv->info->queue_vblank) (crtc, event_id, msc);
}
return ret;
}
static uint64_t
present_window_to_crtc_msc(WindowPtr window, RRCrtcPtr crtc, uint64_t window_msc, uint64_t new_msc)
{
present_window_priv_ptr window_priv = present_get_window_priv(window, TRUE);
if (crtc != window_priv->crtc) {
uint64_t old_ust, old_msc;
/* The old CRTC may have been turned off, in which case
* we'll just use whatever previous MSC we'd seen from this CRTC
*/
if (present_get_ust_msc(window, window_priv->crtc, &old_ust, &old_msc) != Success)
old_msc = window_priv->msc;
window_priv->msc_offset += new_msc - old_msc;
window_priv->crtc = crtc;
}
return window_msc + window_priv->msc_offset;
}
static void
present_flip_idle(ScreenPtr screen)
{
present_screen_priv_ptr screen_priv = present_screen_priv(screen);
if (screen_priv->flip_pixmap) {
present_pixmap_idle(screen_priv->flip_pixmap, screen_priv->flip_window,
screen_priv->flip_serial, screen_priv->flip_idle_fence);
present_fence_destroy(screen_priv->flip_idle_fence);
dixDestroyPixmap(screen_priv->flip_pixmap, screen_priv->flip_pixmap->drawable.id);
screen_priv->flip_crtc = NULL;
screen_priv->flip_window = NULL;
screen_priv->flip_serial = 0;
screen_priv->flip_pixmap = NULL;
screen_priv->flip_idle_fence = NULL;
}
}
static void
present_unflip(ScreenPtr screen)
{
present_screen_priv_ptr screen_priv = present_screen_priv(screen);
assert (!screen_priv->unflip_event_id);
assert (!screen_priv->flip_pending);
/* Update the screen pixmap with the current flip pixmap contents
*/
if (screen_priv->flip_pixmap) {
present_copy_region(&screen->GetScreenPixmap(screen)->drawable,
screen_priv->flip_pixmap,
NULL, 0, 0);
}
screen_priv->unflip_event_id = ++present_event_id;
DebugPresent(("u %lld\n", screen_priv->unflip_event_id));
(*screen_priv->info->unflip) (screen, screen_priv->unflip_event_id);
}
static void
present_execute(present_vblank_ptr vblank, uint64_t ust, uint64_t crtc_msc);
static void
present_flip_notify(present_vblank_ptr vblank, uint64_t ust, uint64_t crtc_msc)
{
WindowPtr window = vblank->window;
ScreenPtr screen = window->drawable.pScreen;
present_screen_priv_ptr screen_priv = present_screen_priv(screen);
DebugPresent(("\tn %p %8lld: %08lx -> %08lx\n", vblank, vblank->target_msc,
vblank->pixmap ? vblank->pixmap->drawable.id : 0,
vblank->window->drawable.id));
assert (vblank == screen_priv->flip_pending);
present_flip_idle(screen);
/* Transfer reference for pixmap and fence from vblank to screen_priv */
screen_priv->flip_crtc = vblank->crtc;
screen_priv->flip_window = vblank->window;
screen_priv->flip_serial = vblank->serial;
screen_priv->flip_pixmap = vblank->pixmap;
screen_priv->flip_idle_fence = vblank->idle_fence;
vblank->pixmap = NULL;
vblank->idle_fence = NULL;
screen_priv->flip_pending = NULL;
if (vblank->abort_flip)
present_unflip(screen);
if (!vblank->window_destroyed)
present_vblank_notify(vblank, PresentCompleteKindPixmap, PresentCompleteModeFlip, ust, crtc_msc);
present_vblank_destroy(vblank);
}
void
present_event_notify(uint64_t event_id, uint64_t ust, uint64_t msc)
{
present_vblank_ptr vblank, tmp;
int s;
xorg_list_for_each_entry_safe(vblank, tmp, &present_exec_queue, event_queue) {
if (vblank->event_id == event_id) {
xorg_list_del(&vblank->event_queue);
present_execute(vblank, ust, msc);
return;
}
}
xorg_list_for_each_entry_safe(vblank, tmp, &present_flip_queue, event_queue) {
if (vblank->event_id == event_id) {
xorg_list_del(&vblank->event_queue);
present_flip_notify(vblank, ust, msc);
return;
}
}
for (s = 0; s < screenInfo.numScreens; s++) {
ScreenPtr screen = screenInfo.screens[s];
present_screen_priv_ptr screen_priv = present_screen_priv(screen);
if (event_id == screen_priv->unflip_event_id) {
DebugPresent(("\tun %lld\n", event_id));
screen_priv->unflip_event_id = 0;
present_flip_idle(screen);
}
}
}
/*
* 'window' is being reconfigured. Check to see if it is involved
* in flipping and clean up as necessary
*/
void
present_check_flip_window (WindowPtr window)
{
ScreenPtr screen = window->drawable.pScreen;
present_screen_priv_ptr screen_priv = present_screen_priv(screen);
present_window_priv_ptr window_priv = present_window_priv(window);
present_vblank_ptr flip_pending = screen_priv->flip_pending;
present_vblank_ptr vblank;
/* If this window hasn't ever been used with Present, it can't be
* flipping
*/
if (!window_priv)
return;
if (screen_priv->unflip_event_id)
return;
if (flip_pending) {
/*
* Check pending flip
*/
if (flip_pending->window == window) {
if (!present_check_flip(flip_pending->crtc, window, flip_pending->pixmap,
flip_pending->sync_flip, NULL, 0, 0))
flip_pending->abort_flip = TRUE;
}
} else {
/*
* Check current flip
*/
if (window == screen_priv->flip_window) {
if (!present_check_flip(screen_priv->flip_crtc, window, screen_priv->flip_pixmap, FALSE, NULL, 0, 0))
present_unflip(screen);
}
}
/* Now check any queued vblanks */
xorg_list_for_each_entry(vblank, &window_priv->vblank, window_list) {
if (vblank->flip && !present_check_flip(vblank->crtc, window, vblank->pixmap, FALSE, NULL, 0, 0))
vblank->flip = FALSE;
}
}
/*
* Once the required MSC has been reached, execute the pending request.
*
* For requests to actually present something, either blt contents to
* the screen or queue a frame buffer swap.
*
* For requests to just get the current MSC/UST combo, skip that part and
* go straight to event delivery
*/
static void
present_execute(present_vblank_ptr vblank, uint64_t ust, uint64_t crtc_msc)
{
WindowPtr window = vblank->window;
present_screen_priv_ptr screen_priv = present_screen_priv(window->drawable.pScreen);
if (vblank->wait_fence) {
/* XXX check fence, queue if not ready */
}
xorg_list_del(&vblank->event_queue);
if (vblank->pixmap) {
if (vblank->flip && screen_priv->flip_pending == NULL && !screen_priv->unflip_event_id) {
DebugPresent(("\tf %p %8lld: %08lx -> %08lx\n", vblank, crtc_msc, vblank->pixmap->drawable.id, vblank->window->drawable.id));
/* Prepare to flip by removing from the window/screen lists
* and sticking it into the flip_pending field
*/
screen_priv->flip_pending = vblank;
xorg_list_del(&vblank->window_list);
xorg_list_add(&vblank->event_queue, &present_flip_queue);
/* Try to flip
*/
if (present_flip(vblank->crtc, vblank->event_id, vblank->target_msc, vblank->pixmap, vblank->sync_flip))
return;
xorg_list_del(&vblank->event_queue);
/* Oops, flip failed. Clear the flip_pending field
*/
screen_priv->flip_pending = NULL;
vblank->flip = FALSE;
}
DebugPresent(("\tc %p %8lld: %08lx -> %08lx\n", vblank, crtc_msc, vblank->pixmap->drawable.id, vblank->window->drawable.id));
if (screen_priv->flip_pending) {
/* Check pending flip
*/
if (window == screen_priv->flip_pending->window)
screen_priv->flip_pending->abort_flip = TRUE;
} else if (!screen_priv->unflip_event_id) {
/* Check current flip
*/
if (window == screen_priv->flip_window)
present_unflip(window->drawable.pScreen);
}
present_copy_region(&window->drawable, vblank->pixmap, vblank->update, vblank->x_off, vblank->y_off);
/* present_copy_region sticks the region into a scratch GC,
* which is then freed, freeing the region
*/
vblank->update = NULL;
present_flush(window);
present_pixmap_idle(vblank->pixmap, vblank->window, vblank->serial, vblank->idle_fence);
}
present_vblank_notify(vblank, vblank->kind, PresentCompleteModeCopy, ust, crtc_msc);
present_vblank_destroy(vblank);
}
int
present_pixmap(WindowPtr window,
PixmapPtr pixmap,
CARD32 serial,
RegionPtr valid,
RegionPtr update,
int16_t x_off,
int16_t y_off,
RRCrtcPtr target_crtc,
SyncFence *wait_fence,
SyncFence *idle_fence,
uint32_t options,
uint64_t window_msc,
uint64_t divisor,
uint64_t remainder,
present_notify_ptr notifies,
int num_notifies)
{
uint64_t ust;
uint64_t target_msc;
uint64_t crtc_msc;
int ret;
present_vblank_ptr vblank;
ScreenPtr screen = window->drawable.pScreen;
present_window_priv_ptr window_priv = present_get_window_priv(window, TRUE);
present_screen_priv_ptr screen_priv = present_screen_priv(screen);
if (!window_priv)
return BadAlloc;
if (!target_crtc) {
/* Update the CRTC if we have a pixmap or we don't have a CRTC
*/
if (!pixmap)
target_crtc = window_priv->crtc;
if (!target_crtc)
target_crtc = present_get_crtc(window);
}
present_get_ust_msc(window, target_crtc, &ust, &crtc_msc);
target_msc = present_window_to_crtc_msc(window, target_crtc, window_msc, crtc_msc);
/* Stash the current MSC away in case we need it later
*/
window_priv->msc = crtc_msc;
/* Adjust target_msc to match modulus
*/
if (crtc_msc >= target_msc) {
if (divisor != 0) {
target_msc = crtc_msc - (crtc_msc % divisor) + remainder;
if (target_msc <= crtc_msc)
target_msc += divisor;
} else
target_msc = crtc_msc;
}
/*
* Look for a matching presentation already on the list and
* don't bother doing the previous one if this one will overwrite it
* in the same frame
*/
if (!update) {
xorg_list_for_each_entry(vblank, &window_priv->vblank, window_list) {
if (!vblank->pixmap)
continue;
if (vblank->crtc != target_crtc || vblank->target_msc != target_msc)
continue;
present_pixmap_idle(vblank->pixmap, vblank->window, vblank->serial, vblank->idle_fence);
present_fence_destroy(vblank->idle_fence);
dixDestroyPixmap(vblank->pixmap, vblank->pixmap->drawable.id);
vblank->pixmap = NULL;
vblank->idle_fence = NULL;
}
}
vblank = calloc (1, sizeof (present_vblank_rec));
if (!vblank)
return BadAlloc;
xorg_list_append(&vblank->window_list, &window_priv->vblank);
xorg_list_init(&vblank->event_queue);
vblank->screen = screen;
vblank->window = window;
vblank->pixmap = pixmap;
vblank->event_id = ++present_event_id;
if (pixmap) {
vblank->kind = PresentCompleteKindPixmap;
pixmap->refcnt++;
} else
vblank->kind = PresentCompleteKindNotifyMSC;
vblank->serial = serial;
if (valid) {
vblank->valid = RegionDuplicate(valid);
if (!vblank->valid)
goto no_mem;
}
if (update) {
vblank->update = RegionDuplicate(update);
if (!vblank->update)
goto no_mem;
}
vblank->x_off = x_off;
vblank->y_off = y_off;
vblank->target_msc = target_msc;
vblank->crtc = target_crtc;
vblank->msc_offset = window_priv->msc_offset;
vblank->notifies = notifies;
vblank->num_notifies = num_notifies;
if (!screen_priv->info || !(screen_priv->info->capabilities & PresentCapabilityAsync))
vblank->sync_flip = TRUE;
if (pixmap && present_check_flip (target_crtc, window, pixmap, vblank->sync_flip, valid, x_off, y_off)) {
vblank->flip = TRUE;
if (vblank->sync_flip)
target_msc--;
}
if (idle_fence) {
vblank->idle_fence = present_fence_create(idle_fence);
if (!vblank->idle_fence)
goto no_mem;
}
if (pixmap)
DebugPresent(("q %p %8lld: %08lx -> %08lx (crtc %d)\n",
vblank, target_msc, vblank->pixmap->drawable.id, vblank->window->drawable.id, target_crtc ? 1 : 0));
xorg_list_add(&vblank->event_queue, &present_exec_queue);
if (target_msc >= crtc_msc) {
ret = present_queue_vblank(screen, target_crtc, vblank->event_id, target_msc);
if (ret != Success) {
xorg_list_del(&vblank->event_queue);
goto failure;
}
} else
present_execute(vblank, ust, crtc_msc);
return Success;
no_mem:
ret = BadAlloc;
failure:
vblank->notifies = NULL;
present_vblank_destroy(vblank);
return ret;
}
void
present_abort_vblank(ScreenPtr screen, RRCrtcPtr crtc, uint64_t event_id, uint64_t msc)
{
present_vblank_ptr vblank, tmp;
if (crtc == NULL)
present_fake_abort_vblank(screen, event_id, msc);
else
{
present_screen_priv_ptr screen_priv = present_screen_priv(screen);
(*screen_priv->info->abort_vblank) (crtc, event_id, msc);
}
xorg_list_for_each_entry_safe(vblank, tmp, &present_exec_queue, event_queue) {
if (vblank->event_id == event_id) {
xorg_list_del(&vblank->event_queue);
return;
}
}
xorg_list_for_each_entry_safe(vblank, tmp, &present_flip_queue, event_queue) {
if (vblank->event_id == event_id) {
xorg_list_del(&vblank->event_queue);
return;
}
}
}
int
present_notify_msc(WindowPtr window,
CARD32 serial,
uint64_t target_msc,
uint64_t divisor,
uint64_t remainder)
{
return present_pixmap(window,
NULL,
serial,
NULL, NULL,
0, 0,
NULL,
NULL, NULL,
0,
target_msc, divisor, remainder, NULL, 0);
}
void
present_flip_destroy(ScreenPtr screen)
{
present_screen_priv_ptr screen_priv = present_screen_priv(screen);
/* XXX this needs to be synchronous for server reset */
/* Do the actual cleanup once the flip has been performed by the hardware */
if (screen_priv->flip_pending)
screen_priv->flip_pending->abort_flip = TRUE;
}
void
present_vblank_destroy(present_vblank_ptr vblank)
{
/* Remove vblank from window and screen lists */
xorg_list_del(&vblank->window_list);
DebugPresent(("\td %p %8lld: %08lx -> %08lx\n", vblank, vblank->target_msc,
vblank->pixmap ? vblank->pixmap->drawable.id : 0,
vblank->window->drawable.id));
/* Drop pixmap reference */
if (vblank->pixmap)
dixDestroyPixmap(vblank->pixmap, vblank->pixmap->drawable.id);
/* Free regions */
if (vblank->valid)
RegionDestroy(vblank->valid);
if (vblank->update)
RegionDestroy(vblank->update);
if (vblank->idle_fence)
present_fence_destroy(vblank->idle_fence);
if (vblank->notifies)
present_destroy_notifies(vblank->notifies, vblank->num_notifies);
free(vblank);
}
Bool
present_init(void)
{
xorg_list_init(&present_exec_queue);
xorg_list_init(&present_flip_queue);
present_fake_queue_init();
return TRUE;
}

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/*
* Copyright © 2013 Keith Packard
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that copyright
* notice and this permission notice appear in supporting documentation, and
* that the name of the copyright holders not be used in advertising or
* publicity pertaining to distribution of the software without specific,
* written prior permission. The copyright holders make no representations
* about the suitability of this software for any purpose. It is provided "as
* is" without express or implied warranty.
*
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
* OF THIS SOFTWARE.
*/
#ifndef _PRESENT_H_
#define _PRESENT_H_
#include <X11/extensions/presentproto.h>
#include "randrstr.h"
#include "presentext.h"
typedef struct present_vblank present_vblank_rec, *present_vblank_ptr;
/* Return the current CRTC for 'window'.
*/
typedef RRCrtcPtr (*present_get_crtc_ptr) (WindowPtr window);
/* Return the current ust/msc for 'crtc'
*/
typedef int (*present_get_ust_msc_ptr) (RRCrtcPtr crtc, uint64_t *ust, uint64_t *msc);
/* Queue callback on 'crtc' for time 'msc'. Call present_event_notify with 'event_id'
* at or after 'msc'. Return false if it didn't happen (which might occur if 'crtc'
* is not currently generating vblanks).
*/
typedef Bool (*present_queue_vblank_ptr) (RRCrtcPtr crtc,
uint64_t event_id,
uint64_t msc);
/* Abort pending vblank. The extension is no longer interested in
* 'event_id' which was to be notified at 'msc'. If possible, the
* driver is free to de-queue the notification.
*/
typedef void (*present_abort_vblank_ptr) (RRCrtcPtr crtc, uint64_t event_id, uint64_t msc);
/* Flush pending drawing on 'window' to the hardware.
*/
typedef void (*present_flush_ptr) (WindowPtr window);
/* Check if 'pixmap' is suitable for flipping to 'window'.
*/
typedef Bool (*present_check_flip_ptr) (RRCrtcPtr crtc, WindowPtr window, PixmapPtr pixmap, Bool sync_flip);
/* Flip pixmap, return false if it didn't happen.
*
* 'crtc' is to be used for any necessary synchronization.
*
* 'sync_flip' requests that the flip be performed at the next
* vertical blank interval to avoid tearing artifacts. If false, the
* flip should be performed as soon as possible.
*
* present_event_notify should be called with 'event_id' when the flip
* occurs
*/
typedef Bool (*present_flip_ptr) (RRCrtcPtr crtc,
uint64_t event_id,
uint64_t target_msc,
PixmapPtr pixmap,
Bool sync_flip);
/* "unflip" back to the regular screen scanout buffer
*
* present_event_notify should be called with 'event_id' when the unflip occurs.
*/
typedef void (*present_unflip_ptr) (ScreenPtr screen,
uint64_t event_id);
#define PRESENT_SCREEN_INFO_VERSION 0
typedef struct present_screen_info {
uint32_t version;
present_get_crtc_ptr get_crtc;
present_get_ust_msc_ptr get_ust_msc;
present_queue_vblank_ptr queue_vblank;
present_abort_vblank_ptr abort_vblank;
present_flush_ptr flush;
uint32_t capabilities;
present_check_flip_ptr check_flip;
present_flip_ptr flip;
present_unflip_ptr unflip;
} present_screen_info_rec, *present_screen_info_ptr;
/*
* Called when 'event_id' occurs. 'ust' and 'msc' indicate when the
* event actually happened
*/
extern _X_EXPORT void
present_event_notify(uint64_t event_id, uint64_t ust, uint64_t msc);
/* 'crtc' has been turned off, so any pending events will never occur.
*/
extern _X_EXPORT void
present_event_abandon(RRCrtcPtr crtc);
extern _X_EXPORT Bool
present_screen_init(ScreenPtr screen, present_screen_info_ptr info);
#endif /* _PRESENT_H_ */

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/*
* Copyright © 2013 Keith Packard
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that copyright
* notice and this permission notice appear in supporting documentation, and
* that the name of the copyright holders not be used in advertising or
* publicity pertaining to distribution of the software without specific,
* written prior permission. The copyright holders make no representations
* about the suitability of this software for any purpose. It is provided "as
* is" without express or implied warranty.
*
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
* OF THIS SOFTWARE.
*/
#ifdef HAVE_XORG_CONFIG_H
#include <xorg-config.h>
#endif
#include "present_priv.h"
#include "present_priv.h"
RESTYPE present_event_type;
static int
present_free_event(pointer data, XID id)
{
present_event_ptr present_event = (present_event_ptr) data;
present_window_priv_ptr window_priv = present_window_priv(present_event->window);
present_event_ptr *previous, current;
for (previous = &window_priv->events; (current = *previous); previous = &current->next) {
if (current == present_event) {
*previous = present_event->next;
break;
}
}
free((pointer) present_event);
return 1;
}
void
present_free_events(WindowPtr window)
{
present_window_priv_ptr window_priv = present_window_priv(window);
present_event_ptr event;
if (!window_priv)
return;
while ((event = window_priv->events))
FreeResource(event->id, RT_NONE);
}
static void
present_event_swap(xGenericEvent *from, xGenericEvent *to)
{
*to = *from;
swaps(&to->sequenceNumber);
swapl(&to->length);
swaps(&to->evtype);
switch (from->evtype) {
case PresentConfigureNotify: {
xPresentConfigureNotify *c = (xPresentConfigureNotify *) to;
swapl(&c->eid);
swapl(&c->window);
swaps(&c->x);
swaps(&c->y);
swaps(&c->width);
swaps(&c->height);
swaps(&c->off_x);
swaps(&c->off_y);
swaps(&c->pixmap_width);
swaps(&c->pixmap_height);
swapl(&c->pixmap_flags);
break;
}
case PresentCompleteNotify:
{
xPresentCompleteNotify *c = (xPresentCompleteNotify *) to;
swapl(&c->eid);
swapl(&c->window);
swapl(&c->serial);
swapll(&c->ust);
swapll(&c->msc);
}
case PresentIdleNotify:
{
xPresentIdleNotify *c = (xPresentIdleNotify *) to;
swapl(&c->eid);
swapl(&c->window);
swapl(&c->serial);
swapl(&c->idle_fence);
}
}
}
void
present_send_config_notify(WindowPtr window, int x, int y, int w, int h, int bw, WindowPtr sibling)
{
present_window_priv_ptr window_priv = present_window_priv(window);
if (window_priv) {
xPresentConfigureNotify cn = {
.type = GenericEvent,
.extension = present_request,
.length = (sizeof(xPresentConfigureNotify) - 32) >> 2,
.evtype = PresentConfigureNotify,
.eid = 0,
.window = window->drawable.id,
.x = x,
.y = y,
.width = w,
.height = h,
.off_x = 0,
.off_y = 0,
.pixmap_width = w,
.pixmap_height = h,
.pixmap_flags = 0
};
present_event_ptr event;
for (event = window_priv->events; event; event = event->next) {
if (event->mask & (1 << PresentConfigureNotify)) {
cn.eid = event->id;
WriteEventsToClient(event->client, 1, (xEvent *) &cn);
}
}
}
}
void
present_send_complete_notify(WindowPtr window, CARD8 kind, CARD8 mode, CARD32 serial, uint64_t ust, uint64_t msc)
{
present_window_priv_ptr window_priv = present_window_priv(window);
if (window_priv) {
xPresentCompleteNotify cn = {
.type = GenericEvent,
.extension = present_request,
.length = (sizeof(xPresentCompleteNotify) - 32) >> 2,
.evtype = PresentCompleteNotify,
.kind = kind,
.mode = mode,
.eid = 0,
.window = window->drawable.id,
.serial = serial,
.ust = ust,
.msc = msc,
};
present_event_ptr event;
for (event = window_priv->events; event; event = event->next) {
if (event->mask & PresentCompleteNotifyMask) {
cn.eid = event->id;
WriteEventsToClient(event->client, 1, (xEvent *) &cn);
}
}
}
}
void
present_send_idle_notify(WindowPtr window, CARD32 serial, PixmapPtr pixmap, struct present_fence *idle_fence)
{
present_window_priv_ptr window_priv = present_window_priv(window);
if (window_priv) {
xPresentIdleNotify in = {
.type = GenericEvent,
.extension = present_request,
.length = (sizeof(xPresentIdleNotify) - 32) >> 2,
.evtype = PresentIdleNotify,
.eid = 0,
.window = window->drawable.id,
.serial = serial,
.pixmap = pixmap->drawable.id,
.idle_fence = present_fence_id(idle_fence)
};
present_event_ptr event;
for (event = window_priv->events; event; event = event->next) {
if (event->mask & PresentIdleNotifyMask) {
in.eid = event->id;
WriteEventsToClient(event->client, 1, (xEvent *) &in);
}
}
}
}
int
present_select_input(ClientPtr client, XID eid, WindowPtr window, CARD32 mask)
{
present_window_priv_ptr window_priv = present_get_window_priv(window, mask != 0);
present_event_ptr event;
if (!window_priv) {
if (mask)
return BadAlloc;
return Success;
}
event = calloc (1, sizeof (present_event_rec));
if (!event)
return BadAlloc;
event->client = client;
event->window = window;
event->id = eid;
event->mask = mask;
event->next = window_priv->events;
window_priv->events = event;
if (!AddResource(event->id, present_event_type, (pointer) event))
return BadAlloc;
return Success;
}
Bool
present_event_init(void)
{
present_event_type = CreateNewResourceType(present_free_event, "PresentEvent");
if (!present_event_type)
return FALSE;
GERegisterExtension(present_request, present_event_swap);
return TRUE;
}

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/*
* Copyright © 2013 Keith Packard
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that copyright
* notice and this permission notice appear in supporting documentation, and
* that the name of the copyright holders not be used in advertising or
* publicity pertaining to distribution of the software without specific,
* written prior permission. The copyright holders make no representations
* about the suitability of this software for any purpose. It is provided "as
* is" without express or implied warranty.
*
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
* OF THIS SOFTWARE.
*/
#ifdef HAVE_XORG_CONFIG_H
#include <xorg-config.h>
#endif
#include "present_priv.h"
#include "list.h"
static struct xorg_list fake_vblank_queue;
typedef struct present_fake_vblank {
struct xorg_list list;
uint64_t event_id;
OsTimerPtr timer;
ScreenPtr screen;
} present_fake_vblank_rec, *present_fake_vblank_ptr;
int
present_fake_get_ust_msc(ScreenPtr screen, uint64_t *ust, uint64_t *msc)
{
present_screen_priv_ptr screen_priv = present_screen_priv(screen);
*ust = GetTimeInMicros();
*msc = *ust / screen_priv->fake_interval;
return Success;
}
static void
present_fake_notify(ScreenPtr screen, uint64_t event_id)
{
uint64_t ust, msc;
present_fake_get_ust_msc(screen, &ust, &msc);
present_event_notify(event_id, ust, msc);
}
static CARD32
present_fake_do_timer(OsTimerPtr timer,
CARD32 time,
pointer arg)
{
present_fake_vblank_ptr fake_vblank = arg;
present_fake_notify(fake_vblank->screen, fake_vblank->event_id);
xorg_list_del(&fake_vblank->list);
free(fake_vblank);
return 0;
}
void
present_fake_abort_vblank(ScreenPtr screen, uint64_t event_id, uint64_t msc)
{
present_fake_vblank_ptr fake_vblank, tmp;
xorg_list_for_each_entry_safe(fake_vblank, tmp, &fake_vblank_queue, list) {
if (fake_vblank->event_id == event_id) {
TimerCancel(fake_vblank->timer);
xorg_list_del(&fake_vblank->list);
free (fake_vblank);
break;
}
}
}
int
present_fake_queue_vblank(ScreenPtr screen,
uint64_t event_id,
uint64_t msc)
{
present_screen_priv_ptr screen_priv = present_screen_priv(screen);
uint64_t ust = msc * screen_priv->fake_interval;
uint64_t now = GetTimeInMicros();
INT32 delay = ((int64_t) (ust - now)) / 1000;
present_fake_vblank_ptr fake_vblank;
if (delay <= 0) {
present_fake_notify(screen, event_id);
return Success;
}
fake_vblank = calloc (1, sizeof (present_fake_vblank_rec));
if (!fake_vblank)
return BadAlloc;
fake_vblank->screen = screen;
fake_vblank->event_id = event_id;
fake_vblank->timer = TimerSet(NULL, 0, delay, present_fake_do_timer, fake_vblank);
if (!fake_vblank->timer) {
free(fake_vblank);
return BadAlloc;
}
xorg_list_add(&fake_vblank->list, &fake_vblank_queue);
return Success;
}
void
present_fake_screen_init(ScreenPtr screen)
{
present_screen_priv_ptr screen_priv = present_screen_priv(screen);
/* For screens with hardware vblank support, the fake code
* will be used for off-screen windows and while screens are blanked,
* in which case we want a slow interval here
*
* Otherwise, pretend that the screen runs at 60Hz
*/
if (screen_priv->info && screen_priv->info->get_crtc)
screen_priv->fake_interval = 1000000;
else
screen_priv->fake_interval = 16667;
}
void
present_fake_queue_init(void)
{
xorg_list_init(&fake_vblank_queue);
}

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/*
* Copyright © 2013 Keith Packard
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that copyright
* notice and this permission notice appear in supporting documentation, and
* that the name of the copyright holders not be used in advertising or
* publicity pertaining to distribution of the software without specific,
* written prior permission. The copyright holders make no representations
* about the suitability of this software for any purpose. It is provided "as
* is" without express or implied warranty.
*
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
* OF THIS SOFTWARE.
*/
#ifdef HAVE_XORG_CONFIG_H
#include <xorg-config.h>
#endif
#include "present_priv.h"
#include <gcstruct.h>
#include <misync.h>
#include <misyncstr.h>
/*
* Wraps SyncFence objects so we can add a SyncTrigger to find out
* when the SyncFence gets destroyed and clean up appropriately
*/
struct present_fence {
SyncTrigger trigger;
SyncFence *fence;
};
/*
* SyncTrigger callbacks
*/
static Bool
present_fence_sync_check_trigger(SyncTrigger *trigger, XSyncValue oldval)
{
return FALSE;
}
static void
present_fence_sync_trigger_fired(SyncTrigger *trigger)
{
}
static void
present_fence_sync_counter_destroyed(SyncTrigger *trigger)
{
struct present_fence *present_fence = container_of(trigger, struct present_fence, trigger);
present_fence->fence = NULL;
}
struct present_fence *
present_fence_create(SyncFence *fence)
{
struct present_fence *present_fence;
present_fence = calloc (1, sizeof (struct present_fence));
if (!present_fence)
return NULL;
present_fence->fence = fence;
present_fence->trigger.pSync = (SyncObject *) fence;
present_fence->trigger.CheckTrigger = present_fence_sync_check_trigger;
present_fence->trigger.TriggerFired = present_fence_sync_trigger_fired;
present_fence->trigger.CounterDestroyed = present_fence_sync_counter_destroyed;
if (SyncAddTriggerToSyncObject(&present_fence->trigger) != Success) {
free (present_fence);
return NULL;
}
return present_fence;
}
void
present_fence_destroy(struct present_fence *present_fence)
{
if (present_fence) {
if (present_fence->fence)
SyncDeleteTriggerFromSyncObject(&present_fence->trigger);
free(present_fence);
}
}
void
present_fence_set_triggered(struct present_fence *present_fence)
{
if (present_fence)
if (present_fence->fence)
(*present_fence->fence->funcs.SetTriggered) (present_fence->fence);
}
XID
present_fence_id(struct present_fence *present_fence)
{
if (!present_fence)
return None;
if (!present_fence->fence)
return None;
return present_fence->fence->sync.id;
}

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/*
* Copyright © 2013 Keith Packard
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that copyright
* notice and this permission notice appear in supporting documentation, and
* that the name of the copyright holders not be used in advertising or
* publicity pertaining to distribution of the software without specific,
* written prior permission. The copyright holders make no representations
* about the suitability of this software for any purpose. It is provided "as
* is" without express or implied warranty.
*
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
* OF THIS SOFTWARE.
*/
#ifdef HAVE_XORG_CONFIG_H
#include <xorg-config.h>
#endif
#include "present_priv.h"
/*
* Mark all pending notifies for 'window' as invalid when
* the window is destroyed
*/
void
present_clear_window_notifies(WindowPtr window)
{
present_notify_ptr notify;
present_window_priv_ptr window_priv = present_window_priv(window);
if (!window_priv)
return;
xorg_list_for_each_entry(notify, &window_priv->notifies, window_list) {
notify->window = NULL;
}
}
/*
* 'notify' is being freed; remove it from the window's notify list
*/
void
present_free_window_notify(present_notify_ptr notify)
{
xorg_list_del(&notify->window_list);
}
/*
* 'notify' is new; add it to the specified window
*/
int
present_add_window_notify(present_notify_ptr notify)
{
WindowPtr window = notify->window;
present_window_priv_ptr window_priv = present_get_window_priv(window, TRUE);
if (!window_priv)
return BadAlloc;
xorg_list_add(&notify->window_list, &window_priv->notifies);
return Success;
}
int
present_create_notifies(ClientPtr client, int num_notifies, xPresentNotify *x_notifies, present_notify_ptr *p_notifies)
{
present_notify_ptr notifies;
int i;
int added = 0;
int status;
notifies = calloc (num_notifies, sizeof (present_notify_rec));
if (!notifies)
return BadAlloc;
for (i = 0; i < num_notifies; i++) {
status = dixLookupWindow(&notifies[i].window, x_notifies[i].window, client, DixGetAttrAccess);
if (status != Success)
goto bail;
notifies[i].serial = x_notifies[i].serial;
status = present_add_window_notify(&notifies[i]);
if (status != Success)
goto bail;
added = i;
}
return Success;
bail:
present_destroy_notifies(notifies, added);
return status;
}
void
present_destroy_notifies(present_notify_ptr notifies, int num_notifies)
{
int i;
for (i = 0; i < num_notifies; i++)
present_free_window_notify(&notifies[i]);
free(notifies);
}

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/*
* Copyright © 2013 Keith Packard
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that copyright
* notice and this permission notice appear in supporting documentation, and
* that the name of the copyright holders not be used in advertising or
* publicity pertaining to distribution of the software without specific,
* written prior permission. The copyright holders make no representations
* about the suitability of this software for any purpose. It is provided "as
* is" without express or implied warranty.
*
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
* OF THIS SOFTWARE.
*/
#ifndef _PRESENT_PRIV_H_
#define _PRESENT_PRIV_H_
#include <X11/X.h>
#include "scrnintstr.h"
#include "misc.h"
#include "list.h"
#include "windowstr.h"
#include "dixstruct.h"
#include "present.h"
#include <syncsdk.h>
#include <syncsrv.h>
#include <xfixes.h>
#include <randrstr.h>
extern int present_request;
extern DevPrivateKeyRec present_screen_private_key;
typedef struct present_fence *present_fence_ptr;
typedef struct present_notify present_notify_rec, *present_notify_ptr;
struct present_notify {
struct xorg_list window_list;
WindowPtr window;
CARD32 serial;
};
struct present_vblank {
struct xorg_list window_list;
struct xorg_list event_queue;
ScreenPtr screen;
WindowPtr window;
PixmapPtr pixmap;
RegionPtr valid;
RegionPtr update;
RRCrtcPtr crtc;
uint32_t serial;
int16_t x_off;
int16_t y_off;
CARD16 kind;
uint64_t event_id;
uint64_t target_msc;
uint64_t msc_offset;
present_fence_ptr idle_fence;
present_fence_ptr wait_fence;
present_notify_ptr notifies;
int num_notifies;
Bool flip;
Bool sync_flip;
Bool abort_flip;
Bool window_destroyed;
};
typedef struct present_screen_priv {
CloseScreenProcPtr CloseScreen;
ConfigNotifyProcPtr ConfigNotify;
DestroyWindowProcPtr DestroyWindow;
ClipNotifyProcPtr ClipNotify;
present_vblank_ptr flip_pending;
uint64_t unflip_event_id;
uint32_t fake_interval;
/* Currently active flipped pixmap and fence */
RRCrtcPtr flip_crtc;
WindowPtr flip_window;
uint32_t flip_serial;
PixmapPtr flip_pixmap;
present_fence_ptr flip_idle_fence;
present_screen_info_ptr info;
} present_screen_priv_rec, *present_screen_priv_ptr;
#define wrap(priv,real,mem,func) {\
priv->mem = real->mem; \
real->mem = func; \
}
#define unwrap(priv,real,mem) {\
real->mem = priv->mem; \
}
static inline present_screen_priv_ptr
present_screen_priv(ScreenPtr screen)
{
return (present_screen_priv_ptr)dixLookupPrivate(&(screen)->devPrivates, &present_screen_private_key);
}
/*
* Each window has a list of clients and event masks
*/
typedef struct present_event *present_event_ptr;
typedef struct present_event {
present_event_ptr next;
ClientPtr client;
WindowPtr window;
XID id;
int mask;
} present_event_rec;
typedef struct present_window_priv {
present_event_ptr events;
RRCrtcPtr crtc; /* Last reported CRTC from get_ust_msc */
uint64_t msc_offset;
uint64_t msc; /* Last reported MSC from the current crtc */
struct xorg_list vblank;
struct xorg_list notifies;
} present_window_priv_rec, *present_window_priv_ptr;
extern DevPrivateKeyRec present_window_private_key;
static inline present_window_priv_ptr
present_window_priv(WindowPtr window)
{
return (present_window_priv_ptr)dixGetPrivate(&(window)->devPrivates, &present_window_private_key);
}
present_window_priv_ptr
present_get_window_priv(WindowPtr window, Bool create);
extern RESTYPE present_event_type;
/*
* present.c
*/
int
present_pixmap(WindowPtr window,
PixmapPtr pixmap,
CARD32 serial,
RegionPtr valid,
RegionPtr update,
int16_t x_off,
int16_t y_off,
RRCrtcPtr target_crtc,
SyncFence *wait_fence,
SyncFence *idle_fence,
uint32_t options,
uint64_t target_msc,
uint64_t divisor,
uint64_t remainder,
present_notify_ptr notifies,
int num_notifies);
int
present_notify_msc(WindowPtr window,
CARD32 serial,
uint64_t target_msc,
uint64_t divisor,
uint64_t remainder);
void
present_abort_vblank(ScreenPtr screen, RRCrtcPtr crtc, uint64_t event_id, uint64_t msc);
void
present_vblank_destroy(present_vblank_ptr vblank);
void
present_flip_destroy(ScreenPtr screen);
void
present_check_flip_window(WindowPtr window);
RRCrtcPtr
present_get_crtc(WindowPtr window);
uint32_t
present_query_capabilities(RRCrtcPtr crtc);
Bool
present_init(void);
/*
* present_event.c
*/
void
present_free_events(WindowPtr window);
void
present_send_config_notify(WindowPtr window, int x, int y, int w, int h, int bw, WindowPtr sibling);
void
present_send_complete_notify(WindowPtr window, CARD8 kind, CARD8 mode, CARD32 serial, uint64_t ust, uint64_t msc);
void
present_send_idle_notify(WindowPtr window, CARD32 serial, PixmapPtr pixmap, present_fence_ptr idle_fence);
int
present_select_input(ClientPtr client,
CARD32 eid,
WindowPtr window,
CARD32 event_mask);
Bool
present_event_init(void);
/*
* present_fake.c
*/
int
present_fake_get_ust_msc(ScreenPtr screen, uint64_t *ust, uint64_t *msc);
int
present_fake_queue_vblank(ScreenPtr screen, uint64_t event_id, uint64_t msc);
void
present_fake_abort_vblank(ScreenPtr screen, uint64_t event_id, uint64_t msc);
void
present_fake_screen_init(ScreenPtr screen);
void
present_fake_queue_init(void);
/*
* present_fence.c
*/
struct present_fence *
present_fence_create(SyncFence *sync_fence);
void
present_fence_destroy(struct present_fence *present_fence);
void
present_fence_set_triggered(struct present_fence *present_fence);
XID
present_fence_id(struct present_fence *present_fence);
/*
* present_notify.c
*/
void
present_clear_window_notifies(WindowPtr window);
void
present_free_window_notify(present_notify_ptr notify);
int
present_add_window_notify(present_notify_ptr notify);
int
present_create_notifies(ClientPtr client, int num_notifies, xPresentNotify *x_notifies, present_notify_ptr *p_notifies);
void
present_destroy_notifies(present_notify_ptr notifies, int num_notifies);
/*
* present_request.c
*/
int
proc_present_dispatch(ClientPtr client);
int
sproc_present_dispatch(ClientPtr client);
/*
* present_screen.c
*/
#endif /* _PRESENT_PRIV_H_ */

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/*
* Copyright © 2013 Keith Packard
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that copyright
* notice and this permission notice appear in supporting documentation, and
* that the name of the copyright holders not be used in advertising or
* publicity pertaining to distribution of the software without specific,
* written prior permission. The copyright holders make no representations
* about the suitability of this software for any purpose. It is provided "as
* is" without express or implied warranty.
*
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
* OF THIS SOFTWARE.
*/
#ifdef HAVE_XORG_CONFIG_H
#include <xorg-config.h>
#endif
#include "present_priv.h"
#include "randrstr.h"
static int
proc_present_query_version(ClientPtr client)
{
REQUEST(xPresentQueryVersionReq);
xPresentQueryVersionReply rep = {
.type = X_Reply,
.sequenceNumber = client->sequence,
.length = 0,
.majorVersion = PRESENT_MAJOR,
.minorVersion = PRESENT_MINOR
};
REQUEST_SIZE_MATCH(xPresentQueryVersionReq);
(void) stuff;
if (client->swapped) {
swaps(&rep.sequenceNumber);
swapl(&rep.length);
swapl(&rep.majorVersion);
swapl(&rep.minorVersion);
}
WriteToClient(client, sizeof(rep), &rep);
return Success;
}
#define VERIFY_FENCE_OR_NONE(fence_ptr, fence_id, client, access) do { \
if ((fence_id) == None) \
(fence_ptr) = NULL; \
else { \
int __rc__ = SyncVerifyFence(&fence_ptr, fence_id, client, access); \
if (__rc__ != Success) \
return __rc__; \
} \
} while (0)
#define VERIFY_CRTC_OR_NONE(crtc_ptr, crtc_id, client, access) do { \
if ((crtc_id) == None) \
(crtc_ptr) = NULL; \
else { \
VERIFY_RR_CRTC(crtc_id, crtc_ptr, access); \
} \
} while (0)
static int
proc_present_pixmap(ClientPtr client)
{
REQUEST(xPresentPixmapReq);
WindowPtr window;
PixmapPtr pixmap;
RegionPtr valid = NULL;
RegionPtr update = NULL;
SyncFence *wait_fence;
SyncFence *idle_fence;
RRCrtcPtr target_crtc;
int ret;
int nnotifies;
present_notify_ptr notifies = NULL;
REQUEST_AT_LEAST_SIZE(xPresentPixmapReq);
ret = dixLookupWindow(&window, stuff->window, client, DixWriteAccess);
if (ret != Success)
return ret;
ret = dixLookupResourceByType((pointer *) &pixmap, stuff->pixmap, RT_PIXMAP, client, DixReadAccess);
if (ret != Success)
return ret;
if (window->drawable.depth != pixmap->drawable.depth)
return BadMatch;
VERIFY_REGION_OR_NONE(valid, stuff->valid, client, DixReadAccess);
VERIFY_REGION_OR_NONE(update, stuff->update, client, DixReadAccess);
VERIFY_CRTC_OR_NONE(target_crtc, stuff->target_crtc, client, DixReadAccess);
VERIFY_FENCE_OR_NONE(wait_fence, stuff->wait_fence, client, DixReadAccess);
VERIFY_FENCE_OR_NONE(idle_fence, stuff->idle_fence, client, DixWriteAccess);
if (stuff->options & ~(PresentAllOptions)) {
client->errorValue = stuff->options;
return BadValue;
}
/*
* Check to see if remainder is sane
*/
if (stuff->divisor == 0) {
if (stuff->remainder != 0) {
client->errorValue = (CARD32) stuff->remainder;
return BadValue;
}
} else {
if (stuff->remainder >= stuff->divisor) {
client->errorValue = (CARD32) stuff->remainder;
return BadValue;
}
}
nnotifies = (client->req_len << 2) - sizeof (xPresentPixmapReq);
if (nnotifies % sizeof (xPresentNotify))
return BadLength;
nnotifies /= sizeof (xPresentNotify);
if (nnotifies) {
ret = present_create_notifies(client, nnotifies, (xPresentNotify *) (stuff + 1), &notifies);
if (ret != Success)
return ret;
}
ret = present_pixmap(window, pixmap, stuff->serial, valid, update,
stuff->x_off, stuff->y_off, target_crtc,
wait_fence, idle_fence, stuff->options,
stuff->target_msc, stuff->divisor, stuff->remainder, notifies, nnotifies);
if (ret != Success)
present_destroy_notifies(notifies, nnotifies);
return ret;
}
static int
proc_present_notify_msc(ClientPtr client)
{
REQUEST(xPresentNotifyMSCReq);
WindowPtr window;
int rc;
REQUEST_SIZE_MATCH(xPresentNotifyMSCReq);
rc = dixLookupWindow(&window, stuff->window, client, DixReadAccess);
if (rc != Success)
return rc;
/*
* Check to see if remainder is sane
*/
if (stuff->divisor == 0) {
if (stuff->remainder != 0) {
client->errorValue = (CARD32) stuff->remainder;
return BadValue;
}
} else {
if (stuff->remainder >= stuff->divisor) {
client->errorValue = (CARD32) stuff->remainder;
return BadValue;
}
}
return present_notify_msc(window, stuff->serial,
stuff->target_msc, stuff->divisor, stuff->remainder);
}
static int
proc_present_select_input (ClientPtr client)
{
REQUEST(xPresentSelectInputReq);
WindowPtr window;
int rc;
REQUEST_SIZE_MATCH(xPresentSelectInputReq);
LEGAL_NEW_RESOURCE(stuff->eid, client);
rc = dixLookupWindow(&window, stuff->window, client, DixGetAttrAccess);
if (rc != Success)
return rc;
if (stuff->eventMask & ~PresentAllEvents) {
client->errorValue = stuff->eventMask;
return BadValue;
}
return present_select_input(client, stuff->eid, window, stuff->eventMask);
}
static int
proc_present_query_capabilities (ClientPtr client)
{
REQUEST(xPresentQueryCapabilitiesReq);
xPresentQueryCapabilitiesReply rep = {
.type = X_Reply,
.sequenceNumber = client->sequence,
.length = 0,
};
WindowPtr window;
RRCrtcPtr crtc = NULL;
int r;
r = dixLookupWindow(&window, stuff->target, client, DixGetAttrAccess);
switch (r) {
case Success:
crtc = present_get_crtc(window);
break;
case BadWindow:
VERIFY_RR_CRTC(stuff->target, crtc, DixGetAttrAccess);
break;
default:
return r;
}
rep.capabilities = present_query_capabilities(crtc);
if (client->swapped) {
swaps(&rep.sequenceNumber);
swapl(&rep.length);
swapl(&rep.capabilities);
}
WriteToClient(client, sizeof(rep), &rep);
return Success;
}
int (*proc_present_vector[PresentNumberRequests]) (ClientPtr) = {
proc_present_query_version, /* 0 */
proc_present_pixmap, /* 1 */
proc_present_notify_msc, /* 2 */
proc_present_select_input, /* 3 */
proc_present_query_capabilities, /* 4 */
};
int
proc_present_dispatch(ClientPtr client)
{
REQUEST(xReq);
if (stuff->data >= PresentNumberRequests || !proc_present_vector[stuff->data])
return BadRequest;
return (*proc_present_vector[stuff->data]) (client);
}
static int
sproc_present_query_version(ClientPtr client)
{
REQUEST(xPresentQueryVersionReq);
swaps(&stuff->length);
swapl(&stuff->majorVersion);
swapl(&stuff->minorVersion);
return (*proc_present_vector[stuff->presentReqType]) (client);
}
static int
sproc_present_pixmap(ClientPtr client)
{
REQUEST(xPresentPixmapReq);
swaps(&stuff->length);
swapl(&stuff->window);
swapl(&stuff->pixmap);
swapl(&stuff->valid);
swapl(&stuff->update);
swaps(&stuff->x_off);
swaps(&stuff->y_off);
swapll(&stuff->target_msc);
swapll(&stuff->divisor);
swapll(&stuff->remainder);
swapl(&stuff->idle_fence);
return (*proc_present_vector[stuff->presentReqType]) (client);
}
static int
sproc_present_notify_msc(ClientPtr client)
{
REQUEST(xPresentNotifyMSCReq);
swaps(&stuff->length);
swapl(&stuff->window);
swapll(&stuff->target_msc);
swapll(&stuff->divisor);
swapll(&stuff->remainder);
return (*proc_present_vector[stuff->presentReqType]) (client);
}
static int
sproc_present_select_input (ClientPtr client)
{
REQUEST(xPresentSelectInputReq);
swaps(&stuff->length);
swapl(&stuff->window);
swapl(&stuff->eventMask);
return (*proc_present_vector[stuff->presentReqType]) (client);
}
static int
sproc_present_query_capabilities (ClientPtr client)
{
REQUEST(xPresentQueryCapabilitiesReq);
swaps(&stuff->length);
swapl(&stuff->target);
return (*proc_present_vector[stuff->presentReqType]) (client);
}
int (*sproc_present_vector[PresentNumberRequests]) (ClientPtr) = {
sproc_present_query_version, /* 0 */
sproc_present_pixmap, /* 1 */
sproc_present_notify_msc, /* 2 */
sproc_present_select_input, /* 3 */
sproc_present_query_capabilities, /* 4 */
};
int
sproc_present_dispatch(ClientPtr client)
{
REQUEST(xReq);
if (stuff->data >= PresentNumberRequests || !sproc_present_vector[stuff->data])
return BadRequest;
return (*sproc_present_vector[stuff->data]) (client);
}

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/*
* Copyright © 2013 Keith Packard
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that copyright
* notice and this permission notice appear in supporting documentation, and
* that the name of the copyright holders not be used in advertising or
* publicity pertaining to distribution of the software without specific,
* written prior permission. The copyright holders make no representations
* about the suitability of this software for any purpose. It is provided "as
* is" without express or implied warranty.
*
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
* OF THIS SOFTWARE.
*/
#ifdef HAVE_XORG_CONFIG_H
#include <xorg-config.h>
#endif
#include "present_priv.h"
int present_request;
DevPrivateKeyRec present_screen_private_key;
DevPrivateKeyRec present_window_private_key;
/*
* Get a pointer to a present window private, creating if necessary
*/
present_window_priv_ptr
present_get_window_priv(WindowPtr window, Bool create)
{
present_window_priv_ptr window_priv = present_window_priv(window);
if (!create || window_priv != NULL)
return window_priv;
window_priv = calloc (1, sizeof (present_window_priv_rec));
if (!window_priv)
return NULL;
xorg_list_init(&window_priv->vblank);
xorg_list_init(&window_priv->notifies);
dixSetPrivate(&window->devPrivates, &present_window_private_key, window_priv);
return window_priv;
}
/*
* Hook the close screen function to clean up our screen private
*/
static Bool
present_close_screen(ScreenPtr screen)
{
present_screen_priv_ptr screen_priv = present_screen_priv(screen);
present_flip_destroy(screen);
unwrap(screen_priv, screen, CloseScreen);
(*screen->CloseScreen) (screen);
free(screen_priv);
return TRUE;
}
/*
* Free any queued presentations for this window
*/
static void
present_free_window_vblank(WindowPtr window)
{
present_window_priv_ptr window_priv = present_window_priv(window);
present_vblank_ptr vblank, tmp;
xorg_list_for_each_entry_safe(vblank, tmp, &window_priv->vblank, window_list) {
present_abort_vblank(window->drawable.pScreen, vblank->crtc, vblank->event_id, vblank->target_msc);
present_vblank_destroy(vblank);
}
}
/*
* Clean up any pending or current flips for this window
*/
static void
present_clear_window_flip(WindowPtr window)
{
ScreenPtr screen = window->drawable.pScreen;
present_screen_priv_ptr screen_priv = present_screen_priv(screen);
present_vblank_ptr flip_pending = screen_priv->flip_pending;
if (flip_pending && flip_pending->window == window) {
assert (flip_pending->abort_flip);
flip_pending->window_destroyed = TRUE;
}
if (screen_priv->flip_window == window)
screen_priv->flip_window = NULL;
}
/*
* Hook the close window function to clean up our window private
*/
static Bool
present_destroy_window(WindowPtr window)
{
Bool ret;
ScreenPtr screen = window->drawable.pScreen;
present_screen_priv_ptr screen_priv = present_screen_priv(screen);
present_window_priv_ptr window_priv = present_window_priv(window);
if (window_priv) {
present_clear_window_notifies(window);
present_free_events(window);
present_free_window_vblank(window);
present_clear_window_flip(window);
free(window_priv);
}
unwrap(screen_priv, screen, DestroyWindow);
if (screen->DestroyWindow)
ret = screen->DestroyWindow (window);
else
ret = TRUE;
wrap(screen_priv, screen, DestroyWindow, present_destroy_window);
return ret;
}
/*
* Hook the config notify screen function to deliver present config notify events
*/
static int
present_config_notify(WindowPtr window,
int x, int y, int w, int h, int bw,
WindowPtr sibling)
{
int ret;
ScreenPtr screen = window->drawable.pScreen;
present_screen_priv_ptr screen_priv = present_screen_priv(screen);
present_send_config_notify(window, x, y, w, h, bw, sibling);
unwrap(screen_priv, screen, ConfigNotify);
if (screen->ConfigNotify)
ret = screen->ConfigNotify (window, x, y, w, h, bw, sibling);
else
ret = 0;
wrap(screen_priv, screen, ConfigNotify, present_config_notify);
return ret;
}
/*
* Hook the clip notify screen function to un-flip as necessary
*/
static void
present_clip_notify(WindowPtr window, int dx, int dy)
{
ScreenPtr screen = window->drawable.pScreen;
present_screen_priv_ptr screen_priv = present_screen_priv(screen);
present_check_flip_window(window);
unwrap(screen_priv, screen, ClipNotify)
if (screen->ClipNotify)
screen->ClipNotify (window, dx, dy);
wrap(screen_priv, screen, ClipNotify, present_clip_notify);
}
/*
* Initialize a screen for use with present
*/
int
present_screen_init(ScreenPtr screen, present_screen_info_ptr info)
{
if (!dixRegisterPrivateKey(&present_screen_private_key, PRIVATE_SCREEN, 0))
return FALSE;
if (!dixRegisterPrivateKey(&present_window_private_key, PRIVATE_WINDOW, 0))
return FALSE;
if (!present_screen_priv(screen)) {
present_screen_priv_ptr screen_priv = calloc(1, sizeof (present_screen_priv_rec));
if (!screen_priv)
return FALSE;
wrap(screen_priv, screen, CloseScreen, present_close_screen);
wrap(screen_priv, screen, DestroyWindow, present_destroy_window);
wrap(screen_priv, screen, ConfigNotify, present_config_notify);
wrap(screen_priv, screen, ClipNotify, present_clip_notify);
screen_priv->info = info;
dixSetPrivate(&screen->devPrivates, &present_screen_private_key, screen_priv);
present_fake_screen_init(screen);
}
return TRUE;
}
/*
* Initialize the present extension
*/
void
present_extension_init(void)
{
ExtensionEntry *extension;
int i;
extension = AddExtension(PRESENT_NAME, PresentNumberEvents, PresentNumberErrors,
proc_present_dispatch, sproc_present_dispatch,
NULL, StandardMinorOpcode);
if (!extension)
goto bail;
present_request = extension->base;
if (!present_init())
goto bail;
if (!present_event_init())
goto bail;
for (i = 0; i < screenInfo.numScreens; i++) {
if (!present_screen_init(screenInfo.screens[i], NULL))
goto bail;
}
return;
bail:
FatalError("Cannot initialize Present extension");
}

29
present/presentext.h Normal file
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@ -0,0 +1,29 @@
/*
* Copyright © 2013 Keith Packard
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that copyright
* notice and this permission notice appear in supporting documentation, and
* that the name of the copyright holders not be used in advertising or
* publicity pertaining to distribution of the software without specific,
* written prior permission. The copyright holders make no representations
* about the suitability of this software for any purpose. It is provided "as
* is" without express or implied warranty.
*
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
* OF THIS SOFTWARE.
*/
#ifndef _PRESENTEXT_H_
#define _PRESENTEXT_H_
extern _X_EXPORT void
present_extension_init(void);
#endif /* _PRESENTEXT_H_ */