1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
|
/*
Copyright 2020 David Robillard <http://drobilla.net>
Permission to use, copy, modify, and/or distribute this software for any
purpose with or without fee is hereby granted, provided that the above
copyright notice and this permission notice appear in all copies.
THIS SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
ANY SPECIAL, DIRECT, 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.
*/
/*
Tests that redisplays posted in the event handler are dispatched at the end
of the same event loop iteration.
*/
#undef NDEBUG
#include "test_utils.h"
#include "pugl/pugl.h"
#include "pugl/pugl_stub.h"
#include <assert.h>
#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>
typedef enum {
START,
EXPOSED,
SHOULD_REDISPLAY,
POSTED_REDISPLAY,
REDISPLAYED,
} State;
typedef struct
{
PuglTestOptions opts;
PuglWorld* world;
PuglView* view;
State state;
} PuglTest;
static const PuglRect redisplayRect = {1, 2, 3, 4};
static const uintptr_t postRedisplayId = 42;
static PuglStatus
onEvent(PuglView* view, const PuglEvent* event)
{
PuglTest* test = (PuglTest*)puglGetHandle(view);
if (test->opts.verbose) {
printEvent(event, "Event: ", true);
}
switch (event->type) {
case PUGL_EXPOSE:
if (test->state == START) {
test->state = EXPOSED;
} else if (test->state == POSTED_REDISPLAY &&
event->expose.x == redisplayRect.x &&
event->expose.y == redisplayRect.y &&
event->expose.width == redisplayRect.width &&
event->expose.height == redisplayRect.height) {
test->state = REDISPLAYED;
}
break;
case PUGL_CLIENT:
if (event->client.data1 == postRedisplayId) {
puglPostRedisplayRect(view, redisplayRect);
test->state = POSTED_REDISPLAY;
}
break;
default: break;
}
return PUGL_SUCCESS;
}
static void
tick(PuglWorld* world)
{
assert(!puglPollEvents(world, -1));
assert(!puglDispatchEvents(world));
}
int
main(int argc, char** argv)
{
PuglTest app = {puglParseTestOptions(&argc, &argv),
puglNewWorld(),
NULL,
START};
// Set up view
app.view = puglNewView(app.world);
puglSetClassName(app.world, "Pugl Test");
puglSetBackend(app.view, puglStubBackend());
puglSetHandle(app.view, &app);
puglSetEventFunc(app.view, onEvent);
// Create and show window
assert(!puglCreateWindow(app.view, "Pugl Test"));
assert(!puglShowWindow(app.view));
while (app.state != EXPOSED) {
tick(app.world);
}
// Send a custom event to trigger a redisplay in the event loop
const PuglEventClient client = { PUGL_CLIENT, 0, postRedisplayId, 0 };
assert(!puglSendEvent(app.view, (const PuglEvent*)&client));
// Loop until an expose happens in the same iteration as the redisplay
app.state = SHOULD_REDISPLAY;
while (app.state != REDISPLAYED) {
tick(app.world);
assert(app.state != POSTED_REDISPLAY);
}
// Tear down
puglFreeView(app.view);
puglFreeWorld(app.world);
return 0;
}
|
