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 
29 void
present_vblank_notify(present_vblank_ptr vblank,CARD8 kind,CARD8 mode,uint64_t ust,uint64_t crtc_msc)30 present_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 
45 present_vblank_ptr
present_vblank_create(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,const uint32_t * capabilities,present_notify_ptr notifies,int num_notifies,uint64_t target_msc,uint64_t crtc_msc)46 present_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     if (target_crtc) {
70         screen_priv = present_screen_priv(target_crtc->pScreen);
71     }
72 
73     vblank = calloc (1, sizeof (present_vblank_rec));
74     if (!vblank)
75         return NULL;
76 
77     xorg_list_append(&vblank->window_list, &window_priv->vblank);
78     xorg_list_init(&vblank->event_queue);
79 
80     vblank->screen = screen;
81     vblank->window = window;
82     vblank->pixmap = pixmap;
83 
84     screen_priv->create_event_id(window_priv, vblank);
85 
86     if (pixmap) {
87         vblank->kind = PresentCompleteKindPixmap;
88         pixmap->refcnt++;
89     } else
90         vblank->kind = PresentCompleteKindNotifyMSC;
91 
92     vblank->serial = serial;
93 
94     if (valid) {
95         vblank->valid = RegionDuplicate(valid);
96         if (!vblank->valid)
97             goto no_mem;
98     }
99     if (update) {
100         vblank->update = RegionDuplicate(update);
101         if (!vblank->update)
102             goto no_mem;
103     }
104 
105     vblank->x_off = x_off;
106     vblank->y_off = y_off;
107     vblank->target_msc = target_msc;
108     vblank->exec_msc = target_msc;
109     vblank->crtc = target_crtc;
110     vblank->msc_offset = window_priv->msc_offset;
111     vblank->notifies = notifies;
112     vblank->num_notifies = num_notifies;
113     vblank->has_suboptimal = (options & PresentOptionSuboptimal);
114     vblank->flip_idler = FALSE;
115 
116     if (pixmap != NULL &&
117         !(options & PresentOptionCopy) &&
118         capabilities) {
119         if (msc_is_after(target_msc, crtc_msc) &&
120             screen_priv->check_flip (target_crtc, window, pixmap, TRUE, valid, x_off, y_off, &reason))
121         {
122             vblank->flip = TRUE;
123             vblank->sync_flip = TRUE;
124         } else if ((*capabilities & PresentCapabilityAsync) &&
125             screen_priv->check_flip (target_crtc, window, pixmap, FALSE, valid, x_off, y_off, &reason))
126         {
127             vblank->flip = TRUE;
128         }
129     }
130     vblank->reason = reason;
131 
132     if (wait_fence) {
133         vblank->wait_fence = present_fence_create(wait_fence);
134         if (!vblank->wait_fence)
135             goto no_mem;
136     }
137 
138     if (idle_fence) {
139         vblank->idle_fence = present_fence_create(idle_fence);
140         if (!vblank->idle_fence)
141             goto no_mem;
142     }
143 
144     if (pixmap)
145         DebugPresent(("q %" PRIu64 " %p %" PRIu64 ": %08" PRIx32 " -> %08" PRIx32 " (crtc %p) flip %d vsync %d serial %d\n",
146                       vblank->event_id, vblank, target_msc,
147                       vblank->pixmap->drawable.id, vblank->window->drawable.id,
148                       target_crtc, vblank->flip, vblank->sync_flip, vblank->serial));
149     return vblank;
150 
151 no_mem:
152     vblank->notifies = NULL;
153     present_vblank_destroy(vblank);
154     return NULL;
155 }
156 
157 void
present_vblank_scrap(present_vblank_ptr vblank)158 present_vblank_scrap(present_vblank_ptr vblank)
159 {
160     DebugPresent(("\tx %" PRIu64 " %p %" PRIu64 " %" PRIu64 ": %08" PRIx32 " -> %08" PRIx32 " (crtc %p)\n",
161                   vblank->event_id, vblank, vblank->exec_msc, vblank->target_msc,
162                   vblank->pixmap->drawable.id, vblank->window->drawable.id,
163                   vblank->crtc));
164 
165     present_pixmap_idle(vblank->pixmap, vblank->window, vblank->serial, vblank->idle_fence);
166     present_fence_destroy(vblank->idle_fence);
167     dixDestroyPixmap(vblank->pixmap, vblank->pixmap->drawable.id);
168 
169     vblank->pixmap = NULL;
170     vblank->idle_fence = NULL;
171     vblank->flip = FALSE;
172 }
173 
174 void
present_vblank_destroy(present_vblank_ptr vblank)175 present_vblank_destroy(present_vblank_ptr vblank)
176 {
177     /* Remove vblank from window and screen lists */
178     xorg_list_del(&vblank->window_list);
179     /* Also make sure vblank is removed from event queue (wnmd) */
180     xorg_list_del(&vblank->event_queue);
181 
182     DebugPresent(("\td %" PRIu64 " %p %" PRIu64 " %" PRIu64 ": %08" PRIx32 " -> %08" PRIx32 "\n",
183                   vblank->event_id, vblank, vblank->exec_msc, vblank->target_msc,
184                   vblank->pixmap ? vblank->pixmap->drawable.id : 0,
185                   vblank->window ? vblank->window->drawable.id : 0));
186 
187     /* Drop pixmap reference */
188     if (vblank->pixmap)
189         dixDestroyPixmap(vblank->pixmap, vblank->pixmap->drawable.id);
190 
191     /* Free regions */
192     if (vblank->valid)
193         RegionDestroy(vblank->valid);
194     if (vblank->update)
195         RegionDestroy(vblank->update);
196 
197     if (vblank->wait_fence)
198         present_fence_destroy(vblank->wait_fence);
199 
200     if (vblank->idle_fence)
201         present_fence_destroy(vblank->idle_fence);
202 
203     if (vblank->notifies)
204         present_destroy_notifies(vblank->notifies, vblank->num_notifies);
205 
206     free(vblank);
207 }
208