Sindbad~EG File Manager
/*
* Copyright © 2018 Roman Gilg
*
* 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"
/*
* Window flip mode
*
* Provides per-window flips. Flips can be processed on windows that
* have the same size as their parents, which they share their pixmap with.
*
* A flip still requires a copy currently, since the original pixmap needs
* to be updated with the new pixmap content. Just a flip of all windows
* to the new pixmap is diffcult, because the original pixmap might not be
* controlled by the Xserver.
*
*/
static void
present_wnmd_execute(present_vblank_ptr vblank, uint64_t ust, uint64_t crtc_msc);
static void
present_wnmd_create_event_id(present_window_priv_ptr window_priv, present_vblank_ptr vblank)
{
vblank->event_id = ++window_priv->event_id;
}
static uint32_t
present_wnmd_query_capabilities(present_screen_priv_ptr screen_priv)
{
return screen_priv->wnmd_info->capabilities;
}
static RRCrtcPtr
present_wnmd_get_crtc(present_screen_priv_ptr screen_priv, WindowPtr window)
{
return (*screen_priv->wnmd_info->get_crtc)(window);
}
static int
present_wnmd_get_ust_msc(ScreenPtr screen, WindowPtr window, uint64_t *ust, uint64_t *msc)
{
present_screen_priv_ptr screen_priv = present_screen_priv(screen);
return (*screen_priv->wnmd_info->get_ust_msc)(window, ust, msc);
}
/*
* When the wait fence or previous flip is completed, it's time
* to re-try the request
*/
static void
present_wnmd_re_execute(present_vblank_ptr vblank)
{
uint64_t ust = 0, crtc_msc = 0;
(void) present_wnmd_get_ust_msc(vblank->screen, vblank->window, &ust, &crtc_msc);
present_wnmd_execute(vblank, ust, crtc_msc);
}
static void
present_wnmd_flip_try_ready(WindowPtr window)
{
present_window_priv_ptr window_priv = present_window_priv(window);
present_vblank_ptr vblank;
xorg_list_for_each_entry(vblank, &window_priv->flip_queue, event_queue) {
if (vblank->queued) {
present_wnmd_re_execute(vblank);
return;
}
}
}
static void
present_wnmd_free_idle_vblank(present_vblank_ptr vblank)
{
present_pixmap_idle(vblank->pixmap, vblank->window, vblank->serial, vblank->idle_fence);
present_vblank_destroy(vblank);
}
/*
* Free any left over idle vblanks
*/
static void
present_wnmd_free_idle_vblanks(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->idle_queue, event_queue) {
present_wnmd_free_idle_vblank(vblank);
}
if (window_priv->flip_active) {
present_wnmd_free_idle_vblank(window_priv->flip_active);
window_priv->flip_active = NULL;
}
}
static WindowPtr
present_wnmd_toplvl_pixmap_window(WindowPtr window)
{
ScreenPtr screen = window->drawable.pScreen;
PixmapPtr pixmap = (*screen->GetWindowPixmap)(window);
WindowPtr w = window;
WindowPtr next_w;
while(w->parent) {
next_w = w->parent;
if ( (*screen->GetWindowPixmap)(next_w) != pixmap) {
break;
}
w = next_w;
}
return w;
}
void
present_wnmd_set_abort_flip(WindowPtr window)
{
present_window_priv_ptr window_priv = present_window_priv(window);
if (!window_priv->flip_pending->abort_flip) {
window_priv->flip_pending->abort_flip = TRUE;
}
}
static void
present_wnmd_flips_stop(WindowPtr window)
{
present_window_priv_ptr window_priv = present_window_priv(window);
present_screen_priv_ptr screen_priv = present_screen_priv(window->drawable.pScreen);
assert (!window_priv->flip_pending);
(*screen_priv->wnmd_info->flips_stop) (window);
present_wnmd_free_idle_vblanks(window_priv->window);
present_wnmd_flip_try_ready(window_priv->window);
}
static void
present_wnmd_flip_notify(present_vblank_ptr vblank, uint64_t ust, uint64_t crtc_msc)
{
WindowPtr window = vblank->window;
present_window_priv_ptr window_priv = present_window_priv(window);
DebugPresent(("\tn %" PRIu64 " %p %" PRIu64 ": %08" PRIx32 " -> %08" PRIx32 "\n",
vblank->event_id, vblank, vblank->target_msc,
vblank->pixmap ? vblank->pixmap->drawable.id : 0,
vblank->window ? vblank->window->drawable.id : 0));
assert (vblank == window_priv->flip_pending);
xorg_list_del(&vblank->event_queue);
if (window_priv->flip_active) {
if (window_priv->flip_active->flip_idler)
present_wnmd_free_idle_vblank(window_priv->flip_active);
else
/* Put the previous flip in the idle_queue and wait for further notice from DDX */
xorg_list_append(&window_priv->flip_active->event_queue, &window_priv->idle_queue);
}
window_priv->flip_active = vblank;
window_priv->flip_pending = NULL;
present_vblank_notify(vblank, PresentCompleteKindPixmap, PresentCompleteModeFlip, ust, crtc_msc);
if (vblank->abort_flip)
present_wnmd_flips_stop(window);
present_wnmd_flip_try_ready(window);
}
void
present_wnmd_event_notify(WindowPtr window, uint64_t event_id, uint64_t ust, uint64_t msc)
{
present_window_priv_ptr window_priv = present_window_priv(window);
present_vblank_ptr vblank;
if (!window_priv)
return;
if (!event_id)
return;
if (window_priv->flip_active && window_priv->flip_active->event_id == event_id) {
/* Notify for active flip, means it is allowed to become idle */
window_priv->flip_active->flip_idler = TRUE;
return;
}
DebugPresent(("\te %" PRIu64 " ust %" PRIu64 " msc %" PRIu64 "\n", event_id, ust, msc));
xorg_list_for_each_entry(vblank, &window_priv->exec_queue, event_queue) {
if (event_id == vblank->event_id) {
present_wnmd_execute(vblank, ust, msc);
return;
}
}
xorg_list_for_each_entry(vblank, &window_priv->flip_queue, event_queue) {
if (vblank->event_id == event_id) {
if (vblank->queued) {
present_wnmd_execute(vblank, ust, msc);
} else {
assert(vblank->window);
present_wnmd_flip_notify(vblank, ust, msc);
}
return;
}
}
xorg_list_for_each_entry(vblank, &window_priv->idle_queue, event_queue) {
if (vblank->event_id == event_id) {
present_wnmd_free_idle_vblank(vblank);
return;
}
}
}
static Bool
present_wnmd_check_flip(RRCrtcPtr crtc,
WindowPtr window,
PixmapPtr pixmap,
Bool sync_flip,
RegionPtr valid,
int16_t x_off,
int16_t y_off,
PresentFlipReason *reason)
{
ScreenPtr screen = window->drawable.pScreen;
present_screen_priv_ptr screen_priv = present_screen_priv(screen);
WindowPtr toplvl_window = present_wnmd_toplvl_pixmap_window(window);
if (reason)
*reason = PRESENT_FLIP_REASON_UNKNOWN;
if (!screen_priv)
return FALSE;
if (!screen_priv->wnmd_info)
return FALSE;
if (!crtc)
return FALSE;
/* Check to see if the driver supports flips at all */
if (!screen_priv->wnmd_info->flip)
return FALSE;
/* Can't flip redirected child windows */
if (screen->GetWindowPixmap(window) != screen->GetWindowPixmap(toplvl_window))
return FALSE;
/* Source pixmap must align with window exactly */
if (x_off || y_off)
return FALSE;
// TODO: Check for valid region?
/* Flip pixmap must have same dimensions as window */
if (window->drawable.width != pixmap->drawable.width ||
window->drawable.height != pixmap->drawable.height)
return FALSE;
/* Window must be same region as toplevel window */
if ( !RegionEqual(&window->winSize, &toplvl_window->winSize) )
return FALSE;
/* Ask the driver for permission */
if (screen_priv->wnmd_info->check_flip2) {
if (!(*screen_priv->wnmd_info->check_flip2) (crtc, window, pixmap, sync_flip, reason)) {
DebugPresent(("\td %08" PRIx32 " -> %08" PRIx32 "\n",
window->drawable.id, pixmap ? pixmap->drawable.id : 0));
return FALSE;
}
}
return TRUE;
}
/*
* 'window' is being reconfigured. Check to see if it is involved
* in flipping and clean up as necessary.
*/
static void
present_wnmd_check_flip_window (WindowPtr window)
{
present_window_priv_ptr window_priv = present_window_priv(window);
present_vblank_ptr flip_pending;
present_vblank_ptr flip_active;
present_vblank_ptr vblank;
PresentFlipReason reason;
/* If this window hasn't ever been used with Present, it can't be
* flipping
*/
if (!window_priv)
return;
flip_pending = window_priv->flip_pending;
flip_active = window_priv->flip_active;
if (flip_pending) {
if (!present_wnmd_check_flip(flip_pending->crtc, flip_pending->window, flip_pending->pixmap,
flip_pending->sync_flip, NULL, 0, 0, NULL))
present_wnmd_set_abort_flip(window);
} else if (flip_active) {
if (!present_wnmd_check_flip(flip_active->crtc, flip_active->window, flip_active->pixmap,
flip_active->sync_flip, NULL, 0, 0, NULL))
present_wnmd_flips_stop(window);
}
/* Now check any queued vblanks */
xorg_list_for_each_entry(vblank, &window_priv->vblank, window_list) {
if (vblank->queued && vblank->flip &&
!present_wnmd_check_flip(vblank->crtc, window, vblank->pixmap,
vblank->sync_flip, NULL, 0, 0, &reason)) {
vblank->flip = FALSE;
vblank->reason = reason;
if (vblank->sync_flip)
vblank->requeue = TRUE;
}
}
}
static Bool
present_wnmd_flip(WindowPtr window,
RRCrtcPtr crtc,
uint64_t event_id,
uint64_t target_msc,
PixmapPtr pixmap,
Bool sync_flip,
RegionPtr damage)
{
ScreenPtr screen = window->drawable.pScreen;
present_screen_priv_ptr screen_priv = present_screen_priv(screen);
return (*screen_priv->wnmd_info->flip) (window,
crtc,
event_id,
target_msc,
pixmap,
sync_flip,
damage);
}
static void
present_wnmd_cancel_flip(WindowPtr window)
{
present_window_priv_ptr window_priv = present_window_priv(window);
if (window_priv->flip_pending)
present_wnmd_set_abort_flip(window);
else if (window_priv->flip_active)
present_wnmd_flips_stop(window);
}
static Bool
present_wnmd_can_window_flip(WindowPtr window)
{
ScreenPtr screen = window->drawable.pScreen;
present_screen_priv_ptr screen_priv = present_screen_priv(screen);
WindowPtr toplvl_window = present_wnmd_toplvl_pixmap_window(window);
if (!screen_priv)
return FALSE;
if (!screen_priv->wnmd_info)
return FALSE;
/* Check to see if the driver supports flips at all */
if (!screen_priv->wnmd_info->flip)
return FALSE;
/* Don't flip redirected windows */
if (window->redirectDraw != RedirectDrawNone)
return FALSE;
/* Window must be same region as toplevel window */
if ( !RegionEqual(&window->winSize, &toplvl_window->winSize) )
return FALSE;
return TRUE;
}
/*
* Once the required MSC has been reached, execute the pending request.
*
* For requests to actually present something, either blt contents to
* the window pixmap or queue a window buffer swap on the backend.
*
* For requests to just get the current MSC/UST combo, skip that part and
* go straight to event delivery.
*/
static void
present_wnmd_execute(present_vblank_ptr vblank, uint64_t ust, uint64_t crtc_msc)
{
WindowPtr window = vblank->window;
present_window_priv_ptr window_priv = present_window_priv(window);
if (present_execute_wait(vblank, crtc_msc))
return;
if (vblank->flip && vblank->pixmap && vblank->window) {
if (window_priv->flip_pending) {
DebugPresent(("\tr %" PRIu64 " %p (pending %p)\n",
vblank->event_id, vblank,
window_priv->flip_pending));
xorg_list_del(&vblank->event_queue);
xorg_list_append(&vblank->event_queue, &window_priv->flip_queue);
vblank->flip_ready = TRUE;
return;
}
}
xorg_list_del(&vblank->event_queue);
xorg_list_del(&vblank->window_list);
vblank->queued = FALSE;
if (vblank->pixmap && vblank->window) {
if (vblank->flip) {
RegionPtr damage;
DebugPresent(("\tf %" PRIu64 " %p %" PRIu64 ": %08" PRIx32 " -> %08" PRIx32 "\n",
vblank->event_id, vblank, crtc_msc,
vblank->pixmap->drawable.id, vblank->window->drawable.id));
/* Prepare to flip by placing it in the flip queue
*/
xorg_list_add(&vblank->event_queue, &window_priv->flip_queue);
/* Set update region as damaged */
if (vblank->update) {
damage = vblank->update;
RegionIntersect(damage, damage, &window->clipList);
} else
damage = &window->clipList;
/* Try to flip - the vblank is now pending
*/
window_priv->flip_pending = vblank;
// ask the driver
if (present_wnmd_flip(vblank->window, vblank->crtc, vblank->event_id,
vblank->target_msc, vblank->pixmap, vblank->sync_flip, damage)) {
ScreenPtr screen = window->drawable.pScreen;
WindowPtr toplvl_window = present_wnmd_toplvl_pixmap_window(vblank->window);
PixmapPtr old_pixmap = screen->GetWindowPixmap(window);
/* Replace window pixmap with flip pixmap */
#ifdef COMPOSITE
vblank->pixmap->screen_x = old_pixmap->screen_x;
vblank->pixmap->screen_y = old_pixmap->screen_y;
#endif
present_set_tree_pixmap(toplvl_window, old_pixmap, vblank->pixmap);
vblank->pixmap->refcnt++;
dixDestroyPixmap(old_pixmap, old_pixmap->drawable.id);
/* Report damage */
DamageDamageRegion(&vblank->window->drawable, damage);
return;
}
xorg_list_del(&vblank->event_queue);
/* Flip failed. Clear the flip_pending field
*/
window_priv->flip_pending = NULL;
vblank->flip = FALSE;
}
DebugPresent(("\tc %p %" PRIu64 ": %08" PRIx32 " -> %08" PRIx32 "\n",
vblank, crtc_msc, vblank->pixmap->drawable.id, vblank->window->drawable.id));
present_wnmd_cancel_flip(window);
present_execute_copy(vblank, crtc_msc);
if (vblank->queued) {
xorg_list_add(&vblank->event_queue, &window_priv->exec_queue);
xorg_list_append(&vblank->window_list, &window_priv->vblank);
return;
}
}
present_execute_post(vblank, ust, crtc_msc);
}
static int
present_wnmd_queue_vblank(ScreenPtr screen,
WindowPtr window,
RRCrtcPtr crtc,
uint64_t event_id,
uint64_t msc)
{
present_screen_priv_ptr screen_priv = present_screen_priv(screen);
return (*screen_priv->wnmd_info->queue_vblank) (window, crtc, event_id, msc);
}
static uint64_t
present_wnmd_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) {
if (window_priv->crtc == PresentCrtcNeverSet) {
window_priv->msc_offset = 0;
} else {
/* The old CRTC may have been turned off, in which case
* we'll just use whatever previous MSC we'd seen from this CRTC
*/
window_priv->msc_offset += new_msc - window_priv->msc;
}
window_priv->crtc = crtc;
}
return window_msc + window_priv->msc_offset;
}
static int
present_wnmd_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 = 0;
uint64_t target_msc;
uint64_t crtc_msc = 0;
int ret;
present_vblank_ptr vblank, tmp;
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;
target_crtc = present_wnmd_get_crtc(screen_priv, window);
ret = present_wnmd_get_ust_msc(screen, window, &ust, &crtc_msc);
target_msc = present_wnmd_window_to_crtc_msc(window, target_crtc, window_msc, crtc_msc);
if (ret == Success) {
/* Stash the current MSC away in case we need it later
*/
window_priv->msc = crtc_msc;
}
present_adjust_timings(options,
&crtc_msc,
&target_msc,
divisor,
remainder);
/*
* Look for a matching presentation already on the list...
*/
if (!update && pixmap) {
xorg_list_for_each_entry_safe(vblank, tmp, &window_priv->vblank, window_list) {
if (!vblank->pixmap)
continue;
if (!vblank->queued)
continue;
if (vblank->target_msc != target_msc)
continue;
present_vblank_scrap(vblank);
if (vblank->flip_ready)
present_wnmd_re_execute(vblank);
}
}
vblank = present_vblank_create(window,
pixmap,
serial,
valid,
update,
x_off,
y_off,
target_crtc,
wait_fence,
idle_fence,
options,
&screen_priv->wnmd_info->capabilities,
notifies,
num_notifies,
&target_msc,
crtc_msc);
if (!vblank)
return BadAlloc;
xorg_list_append(&vblank->event_queue, &window_priv->exec_queue);
vblank->queued = TRUE;
if (crtc_msc < target_msc) {
if (present_wnmd_queue_vblank(screen, window, target_crtc, vblank->event_id, target_msc) == Success) {
return Success;
}
DebugPresent(("present_queue_vblank failed\n"));
}
present_wnmd_execute(vblank, ust, crtc_msc);
return Success;
}
static void
present_wnmd_abort_vblank(ScreenPtr screen, WindowPtr window, RRCrtcPtr crtc, uint64_t event_id, uint64_t msc)
{
present_screen_priv_ptr screen_priv = present_screen_priv(screen);
present_window_priv_ptr window_priv = present_window_priv(window);
present_vblank_ptr vblank;
(*screen_priv->wnmd_info->abort_vblank) (window, crtc, event_id, msc);
xorg_list_for_each_entry(vblank, &window_priv->exec_queue, event_queue) {
if (vblank->event_id == event_id) {
xorg_list_del(&vblank->event_queue);
vblank->queued = FALSE;
return;
}
}
xorg_list_for_each_entry(vblank, &window_priv->flip_queue, event_queue) {
if (vblank->event_id == event_id) {
xorg_list_del(&vblank->event_queue);
vblank->queued = FALSE;
return;
}
}
}
static void
present_wnmd_flip_destroy(ScreenPtr screen)
{
/* Cleanup done on window destruction */
}
static void
present_wnmd_flush(WindowPtr window)
{
ScreenPtr screen = window->drawable.pScreen;
present_screen_priv_ptr screen_priv = present_screen_priv(screen);
(*screen_priv->wnmd_info->flush) (window);
}
void
present_wnmd_init_mode_hooks(present_screen_priv_ptr screen_priv)
{
screen_priv->query_capabilities = &present_wnmd_query_capabilities;
screen_priv->get_crtc = &present_wnmd_get_crtc;
screen_priv->check_flip = &present_wnmd_check_flip;
screen_priv->check_flip_window = &present_wnmd_check_flip_window;
screen_priv->can_window_flip = &present_wnmd_can_window_flip;
screen_priv->present_pixmap = &present_wnmd_pixmap;
screen_priv->create_event_id = &present_wnmd_create_event_id;
screen_priv->queue_vblank = &present_wnmd_queue_vblank;
screen_priv->flush = &present_wnmd_flush;
screen_priv->re_execute = &present_wnmd_re_execute;
screen_priv->abort_vblank = &present_wnmd_abort_vblank;
screen_priv->flip_destroy = &present_wnmd_flip_destroy;
}
Sindbad File Manager Version 1.0, Coded By Sindbad EG ~ The Terrorists