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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>
/*
* Returns:
* TRUE if the first MSC value is equal to or after the second one
* FALSE if the first MSC value is before the second one
*/
static Bool
msc_is_equal_or_after(uint64_t test, uint64_t reference)
{
return (int64_t)(test - reference) >= 0;
}
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;
return screen_priv->query_capabilities(screen_priv);
}
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;
return screen_priv->get_crtc(screen_priv, window);
}
/*
* Copies the update region from a pixmap to the target drawable
*/
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);
}
void
present_pixmap_idle(PixmapPtr pixmap, WindowPtr window, CARD32 serial, struct present_fence *present_fence)
{
if (present_fence)
present_fence_set_triggered(present_fence);
if (window) {
DebugPresent(("\ti %08" PRIx32 "\n", pixmap ? pixmap->drawable.id : 0));
present_send_idle_notify(window, serial, pixmap, present_fence);
}
}
struct pixmap_visit {
PixmapPtr old;
PixmapPtr new;
};
static int
present_set_tree_pixmap_visit(WindowPtr window, void *data)
{
struct pixmap_visit *visit = data;
ScreenPtr screen = window->drawable.pScreen;
if ((*screen->GetWindowPixmap)(window) != visit->old)
return WT_DONTWALKCHILDREN;
(*screen->SetWindowPixmap)(window, visit->new);
return WT_WALKCHILDREN;
}
void
present_set_tree_pixmap(WindowPtr window,
PixmapPtr expected,
PixmapPtr pixmap)
{
struct pixmap_visit visit;
ScreenPtr screen = window->drawable.pScreen;
visit.old = (*screen->GetWindowPixmap)(window);
if (expected && visit.old != expected)
return;
visit.new = pixmap;
if (visit.old == visit.new)
return;
TraverseTree(window, present_set_tree_pixmap_visit, &visit);
}
Bool
present_can_window_flip(WindowPtr window)
{
ScreenPtr screen = window->drawable.pScreen;
present_screen_priv_ptr screen_priv = present_screen_priv(screen);
return screen_priv->can_window_flip(window);
}
void
present_adjust_timings(uint32_t options,
uint64_t *crtc_msc,
uint64_t *target_msc,
uint64_t divisor,
uint64_t remainder)
{
/* Adjust target_msc to match modulus
*/
if (msc_is_equal_or_after(*crtc_msc, *target_msc)) {
if (divisor != 0) {
*target_msc = *crtc_msc - (*crtc_msc % divisor) + remainder;
if (options & PresentOptionAsync) {
if (msc_is_after(*crtc_msc, *target_msc))
*target_msc += divisor;
} else {
if (msc_is_equal_or_after(*crtc_msc, *target_msc))
*target_msc += divisor;
}
} else {
*target_msc = *crtc_msc;
if (!(options & PresentOptionAsync))
(*target_msc)++;
}
}
}
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)
{
ScreenPtr screen = window->drawable.pScreen;
present_screen_priv_ptr screen_priv = present_screen_priv(screen);
return screen_priv->present_pixmap(window,
pixmap,
serial,
valid,
update,
x_off,
y_off,
target_crtc,
wait_fence,
idle_fence,
options,
window_msc,
divisor,
remainder,
notifies,
num_notifies);
}
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,
divisor == 0 ? PresentOptionAsync : 0,
target_msc, divisor, remainder, NULL, 0);
}
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