1 /*
2 * DRM based mode setting test program
3 * Copyright (C) 2013 Red Hat
4 * Author: Rob Clark <robdclark@gmail.com>
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
21 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
22 * IN THE SOFTWARE.
23 */
24
25 #include <assert.h>
26 #include <errno.h>
27 #include <stdio.h>
28 #include <stdlib.h>
29 #include <stdint.h>
30 #include <string.h>
31 #include <signal.h>
32 #include <sys/time.h>
33 #include <pthread.h>
34 #include <unistd.h>
35
36 #include "xf86drm.h"
37 #include "xf86drmMode.h"
38
39 #include "util/common.h"
40
41 #include "buffers.h"
42 #include "cursor.h"
43
44 struct cursor {
45 int fd;
46 uint32_t bo_handle;
47 uint32_t crtc_id;
48 uint32_t crtc_w, crtc_h;
49 uint32_t w, h;
50
51 /* current state */
52 uint32_t enabled, x, y;
53 int32_t dx, dy;
54 };
55
56 #define MAX_CURSORS 8
57 static struct cursor cursors[MAX_CURSORS];
58 static int ncursors;
59
60 static pthread_t cursor_thread;
61 static int cursor_running;
62
63 /*
64 * Timer driven program loops through these steps to move/enable/disable
65 * the cursor
66 */
67
68 struct cursor_step {
69 void (*run)(struct cursor *cursor, const struct cursor_step *step);
70 uint32_t msec;
71 uint32_t repeat;
72 int arg;
73 };
74
75 static uint32_t indx, count;
76
set_cursor(struct cursor * cursor,const struct cursor_step * step)77 static void set_cursor(struct cursor *cursor, const struct cursor_step *step)
78 {
79 int enabled = (step->arg ^ count) & 0x1;
80 uint32_t handle = 0;
81
82 if (enabled)
83 handle = cursor->bo_handle;
84
85 cursor->enabled = enabled;
86
87 drmModeSetCursor(cursor->fd, cursor->crtc_id, handle, cursor->w, cursor->h);
88 }
89
move_cursor(struct cursor * cursor,const struct cursor_step * step)90 static void move_cursor(struct cursor *cursor, const struct cursor_step *step)
91 {
92 int x = cursor->x;
93 int y = cursor->y;
94
95 if (!cursor->enabled)
96 drmModeSetCursor(cursor->fd, cursor->crtc_id,
97 cursor->bo_handle, cursor->w, cursor->h);
98
99 /* calculate new cursor position: */
100 x += cursor->dx * step->arg;
101 y += cursor->dy * step->arg;
102
103 if (x < 0) {
104 x = 0;
105 cursor->dx = 1;
106 } else if (x > (int)cursor->crtc_w) {
107 x = cursor->crtc_w - 1;
108 cursor->dx = -1;
109 }
110
111 if (y < 0) {
112 y = 0;
113 cursor->dy = 1;
114 } else if (y > (int)cursor->crtc_h) {
115 y = cursor->crtc_h - 1;
116 cursor->dy = -1;
117 }
118
119 cursor->x = x;
120 cursor->y = y;
121
122 drmModeMoveCursor(cursor->fd, cursor->crtc_id, x, y);
123 }
124
125 static const struct cursor_step steps[] = {
126 { set_cursor, 10, 0, 1 }, /* enable */
127 { move_cursor, 1, 100, 1 },
128 { move_cursor, 1, 10, 10 },
129 { set_cursor, 1, 100, 0 }, /* disable/enable loop */
130 { move_cursor, 1, 10, 10 },
131 { move_cursor, 9, 100, 1 },
132 { move_cursor, 11, 100, 5 },
133 { set_cursor, 17, 10, 0 }, /* disable/enable loop */
134 { move_cursor, 9, 100, 1 },
135 { set_cursor, 13, 10, 0 }, /* disable/enable loop */
136 { move_cursor, 9, 100, 1 },
137 { set_cursor, 13, 10, 0 }, /* disable/enable loop */
138 { set_cursor, 10, 0, 0 }, /* disable */
139 };
140
cursor_thread_func(void * data)141 static void *cursor_thread_func(void *data)
142 {
143 while (cursor_running) {
144 const struct cursor_step *step = &steps[indx % ARRAY_SIZE(steps)];
145 int i;
146
147 for (i = 0; i < ncursors; i++) {
148 struct cursor *cursor = &cursors[i];
149 step->run(cursor, step);
150 }
151
152 /* iterate to next count/step: */
153 if (count < step->repeat) {
154 count++;
155 } else {
156 count = 0;
157 indx++;
158 }
159
160 usleep(1000 * step->msec);
161 }
162
163 return NULL;
164 }
165
cursor_init(int fd,uint32_t bo_handle,uint32_t crtc_id,uint32_t crtc_w,uint32_t crtc_h,uint32_t w,uint32_t h)166 int cursor_init(int fd, uint32_t bo_handle, uint32_t crtc_id,
167 uint32_t crtc_w, uint32_t crtc_h, uint32_t w, uint32_t h)
168 {
169 struct cursor *cursor = &cursors[ncursors];
170
171 assert(ncursors < MAX_CURSORS);
172
173 cursor->fd = fd;
174 cursor->bo_handle = bo_handle;
175 cursor->crtc_id = crtc_id;
176 cursor->crtc_w = crtc_w;
177 cursor->crtc_h = crtc_h;
178 cursor->w = w;
179 cursor->h = h;
180
181 cursor->enabled = 0;
182 cursor->x = w/2;
183 cursor->y = h/2;
184 cursor->dx = 1;
185 cursor->dy = 1;
186
187 ncursors++;
188
189 return 0;
190 }
191
cursor_start(void)192 int cursor_start(void)
193 {
194 cursor_running = 1;
195 pthread_create(&cursor_thread, NULL, cursor_thread_func, NULL);
196 printf("starting cursor\n");
197 return 0;
198 }
199
cursor_stop(void)200 int cursor_stop(void)
201 {
202 cursor_running = 0;
203 pthread_join(cursor_thread, NULL);
204 printf("cursor stopped\n");
205 return 0;
206 }
207