present_vblank.c revision 5a7dfde8 
1/*
2 * Copyright © 2013 Keith Packard
3 *
4 * Permission to use, copy, modify, distribute, and sell this software and its
5 * documentation for any purpose is hereby granted without fee, provided that
6 * the above copyright notice appear in all copies and that both that copyright
7 * notice and this permission notice appear in supporting documentation, and
8 * that the name of the copyright holders not be used in advertising or
9 * publicity pertaining to distribution of the software without specific,
10 * written prior permission.  The copyright holders make no representations
11 * about the suitability of this software for any purpose.  It is provided "as
12 * is" without express or implied warranty.
13 *
14 * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
15 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
16 * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
17 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
18 * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
19 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
20 * OF THIS SOFTWARE.
21 */
22
23#ifdef HAVE_XORG_CONFIG_H
24#include <xorg-config.h>
25#endif
26
27#include "present_priv.h"
28
29void
30present_vblank_notify(present_vblank_ptr vblank, CARD8 kind, CARD8 mode, uint64_t ust, uint64_t crtc_msc)
31{
32    int n;
33
34    if (vblank->window)
35        present_send_complete_notify(vblank->window, kind, mode, vblank->serial, ust, crtc_msc - vblank->msc_offset);
36    for (n = 0; n < vblank->num_notifies; n++) {
37        WindowPtr   window = vblank->notifies[n].window;
38        CARD32      serial = vblank->notifies[n].serial;
39
40        if (window)
41            present_send_complete_notify(window, kind, mode, serial, ust, crtc_msc - vblank->msc_offset);
42    }
43}
44
45present_vblank_ptr
46present_vblank_create(WindowPtr window,
47                      PixmapPtr pixmap,
48                      CARD32 serial,
49                      RegionPtr valid,
50                      RegionPtr update,
51                      int16_t x_off,
52                      int16_t y_off,
53                      RRCrtcPtr target_crtc,
54                      SyncFence *wait_fence,
55                      SyncFence *idle_fence,
56                      uint32_t options,
57                      const uint32_t *capabilities,
58                      present_notify_ptr notifies,
59                      int num_notifies,
60                      uint64_t target_msc,
61                      uint64_t crtc_msc)
62{
63    ScreenPtr                   screen = window->drawable.pScreen;
64    present_window_priv_ptr     window_priv = present_get_window_priv(window, TRUE);
65    present_screen_priv_ptr     screen_priv = present_screen_priv(screen);
66    present_vblank_ptr          vblank;
67    PresentFlipReason           reason = PRESENT_FLIP_REASON_UNKNOWN;
68
69    vblank = calloc (1, sizeof (present_vblank_rec));
70    if (!vblank)
71        return NULL;
72
73    xorg_list_append(&vblank->window_list, &window_priv->vblank);
74    xorg_list_init(&vblank->event_queue);
75
76    vblank->screen = screen;
77    vblank->window = window;
78    vblank->pixmap = pixmap;
79
80    screen_priv->create_event_id(window_priv, vblank);
81
82    if (pixmap) {
83        vblank->kind = PresentCompleteKindPixmap;
84        pixmap->refcnt++;
85    } else
86        vblank->kind = PresentCompleteKindNotifyMSC;
87
88    vblank->serial = serial;
89
90    if (valid) {
91        vblank->valid = RegionDuplicate(valid);
92        if (!vblank->valid)
93            goto no_mem;
94    }
95    if (update) {
96        vblank->update = RegionDuplicate(update);
97        if (!vblank->update)
98            goto no_mem;
99    }
100
101    vblank->x_off = x_off;
102    vblank->y_off = y_off;
103    vblank->target_msc = target_msc;
104    vblank->exec_msc = target_msc;
105    vblank->crtc = target_crtc;
106    vblank->msc_offset = window_priv->msc_offset;
107    vblank->notifies = notifies;
108    vblank->num_notifies = num_notifies;
109    vblank->has_suboptimal = (options & PresentOptionSuboptimal);
110    vblank->flip_idler = FALSE;
111
112    if (pixmap != NULL &&
113        !(options & PresentOptionCopy) &&
114        capabilities) {
115        if (msc_is_after(target_msc, crtc_msc) &&
116            screen_priv->check_flip (target_crtc, window, pixmap, TRUE, valid, x_off, y_off, &reason))
117        {
118            vblank->flip = TRUE;
119            vblank->sync_flip = TRUE;
120        } else if ((*capabilities & PresentCapabilityAsync) &&
121            screen_priv->check_flip (target_crtc, window, pixmap, FALSE, valid, x_off, y_off, &reason))
122        {
123            vblank->flip = TRUE;
124        }
125    }
126    vblank->reason = reason;
127
128    if (wait_fence) {
129        vblank->wait_fence = present_fence_create(wait_fence);
130        if (!vblank->wait_fence)
131            goto no_mem;
132    }
133
134    if (idle_fence) {
135        vblank->idle_fence = present_fence_create(idle_fence);
136        if (!vblank->idle_fence)
137            goto no_mem;
138    }
139
140    if (pixmap)
141        DebugPresent(("q %" PRIu64 " %p %" PRIu64 ": %08" PRIx32 " -> %08" PRIx32 " (crtc %p) flip %d vsync %d serial %d\n",
142                      vblank->event_id, vblank, target_msc,
143                      vblank->pixmap->drawable.id, vblank->window->drawable.id,
144                      target_crtc, vblank->flip, vblank->sync_flip, vblank->serial));
145    return vblank;
146
147no_mem:
148    vblank->notifies = NULL;
149    present_vblank_destroy(vblank);
150    return NULL;
151}
152
153void
154present_vblank_scrap(present_vblank_ptr vblank)
155{
156    DebugPresent(("\tx %" PRIu64 " %p %" PRIu64 " %" PRIu64 ": %08" PRIx32 " -> %08" PRIx32 " (crtc %p)\n",
157                  vblank->event_id, vblank, vblank->exec_msc, vblank->target_msc,
158                  vblank->pixmap->drawable.id, vblank->window->drawable.id,
159                  vblank->crtc));
160
161    present_pixmap_idle(vblank->pixmap, vblank->window, vblank->serial, vblank->idle_fence);
162    present_fence_destroy(vblank->idle_fence);
163    dixDestroyPixmap(vblank->pixmap, vblank->pixmap->drawable.id);
164
165    vblank->pixmap = NULL;
166    vblank->idle_fence = NULL;
167    vblank->flip = FALSE;
168}
169
170void
171present_vblank_destroy(present_vblank_ptr vblank)
172{
173    /* Remove vblank from window and screen lists */
174    xorg_list_del(&vblank->window_list);
175    /* Also make sure vblank is removed from event queue (wnmd) */
176    xorg_list_del(&vblank->event_queue);
177
178    DebugPresent(("\td %" PRIu64 " %p %" PRIu64 " %" PRIu64 ": %08" PRIx32 " -> %08" PRIx32 "\n",
179                  vblank->event_id, vblank, vblank->exec_msc, vblank->target_msc,
180                  vblank->pixmap ? vblank->pixmap->drawable.id : 0,
181                  vblank->window ? vblank->window->drawable.id : 0));
182
183    /* Drop pixmap reference */
184    if (vblank->pixmap)
185        dixDestroyPixmap(vblank->pixmap, vblank->pixmap->drawable.id);
186
187    /* Free regions */
188    if (vblank->valid)
189        RegionDestroy(vblank->valid);
190    if (vblank->update)
191        RegionDestroy(vblank->update);
192
193    if (vblank->wait_fence)
194        present_fence_destroy(vblank->wait_fence);
195
196    if (vblank->idle_fence)
197        present_fence_destroy(vblank->idle_fence);
198
199    if (vblank->notifies)
200        present_destroy_notifies(vblank->notifies, vblank->num_notifies);
201
202    free(vblank);
203}
204