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- /*
- * DRM based mode setting test program
- * Copyright (C) 2013 Red Hat
- * Author: Rob Clark <robdclark@gmail.com>
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
- * IN THE SOFTWARE.
- */
- #include <assert.h>
- #include <errno.h>
- #include <stdio.h>
- #include <stdlib.h>
- #include <stdint.h>
- #include <string.h>
- #include <signal.h>
- #include <sys/time.h>
- #include <pthread.h>
- #include <unistd.h>
- #include "xf86drm.h"
- #include "xf86drmMode.h"
- #include "util/common.h"
- #include "buffers.h"
- #include "cursor.h"
- struct cursor {
- int fd;
- uint32_t bo_handle;
- uint32_t crtc_id;
- uint32_t crtc_w, crtc_h;
- uint32_t w, h;
- /* current state */
- uint32_t enabled, x, y;
- int32_t dx, dy;
- };
- #define MAX_CURSORS 8
- static struct cursor cursors[MAX_CURSORS];
- static int ncursors;
- static pthread_t cursor_thread;
- static int cursor_running;
- /*
- * Timer driven program loops through these steps to move/enable/disable
- * the cursor
- */
- struct cursor_step {
- void (*run)(struct cursor *cursor, const struct cursor_step *step);
- uint32_t msec;
- uint32_t repeat;
- int arg;
- };
- static uint32_t indx, count;
- static void set_cursor(struct cursor *cursor, const struct cursor_step *step)
- {
- int enabled = (step->arg ^ count) & 0x1;
- uint32_t handle = 0;
- if (enabled)
- handle = cursor->bo_handle;
- cursor->enabled = enabled;
- drmModeSetCursor(cursor->fd, cursor->crtc_id, handle, cursor->w, cursor->h);
- }
- static void move_cursor(struct cursor *cursor, const struct cursor_step *step)
- {
- int x = cursor->x;
- int y = cursor->y;
- if (!cursor->enabled)
- drmModeSetCursor(cursor->fd, cursor->crtc_id,
- cursor->bo_handle, cursor->w, cursor->h);
- /* calculate new cursor position: */
- x += cursor->dx * step->arg;
- y += cursor->dy * step->arg;
- if (x < 0) {
- x = 0;
- cursor->dx = 1;
- } else if (x > (int)cursor->crtc_w) {
- x = cursor->crtc_w - 1;
- cursor->dx = -1;
- }
- if (y < 0) {
- y = 0;
- cursor->dy = 1;
- } else if (y > (int)cursor->crtc_h) {
- y = cursor->crtc_h - 1;
- cursor->dy = -1;
- }
- cursor->x = x;
- cursor->y = y;
- drmModeMoveCursor(cursor->fd, cursor->crtc_id, x, y);
- }
- static const struct cursor_step steps[] = {
- { set_cursor, 10, 0, 1 }, /* enable */
- { move_cursor, 1, 100, 1 },
- { move_cursor, 1, 10, 10 },
- { set_cursor, 1, 100, 0 }, /* disable/enable loop */
- { move_cursor, 1, 10, 10 },
- { move_cursor, 9, 100, 1 },
- { move_cursor, 11, 100, 5 },
- { set_cursor, 17, 10, 0 }, /* disable/enable loop */
- { move_cursor, 9, 100, 1 },
- { set_cursor, 13, 10, 0 }, /* disable/enable loop */
- { move_cursor, 9, 100, 1 },
- { set_cursor, 13, 10, 0 }, /* disable/enable loop */
- { set_cursor, 10, 0, 0 }, /* disable */
- };
- static void *cursor_thread_func(void *data)
- {
- while (cursor_running) {
- const struct cursor_step *step = &steps[indx % ARRAY_SIZE(steps)];
- int i;
- for (i = 0; i < ncursors; i++) {
- struct cursor *cursor = &cursors[i];
- step->run(cursor, step);
- }
- /* iterate to next count/step: */
- if (count < step->repeat) {
- count++;
- } else {
- count = 0;
- indx++;
- }
- usleep(1000 * step->msec);
- }
- return NULL;
- }
- int 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)
- {
- struct cursor *cursor = &cursors[ncursors];
- assert(ncursors < MAX_CURSORS);
- cursor->fd = fd;
- cursor->bo_handle = bo_handle;
- cursor->crtc_id = crtc_id;
- cursor->crtc_w = crtc_w;
- cursor->crtc_h = crtc_h;
- cursor->w = w;
- cursor->h = h;
- cursor->enabled = 0;
- cursor->x = w/2;
- cursor->y = h/2;
- cursor->dx = 1;
- cursor->dy = 1;
- ncursors++;
- return 0;
- }
- int cursor_start(void)
- {
- cursor_running = 1;
- pthread_create(&cursor_thread, NULL, cursor_thread_func, NULL);
- printf("starting cursor\n");
- return 0;
- }
- int cursor_stop(void)
- {
- cursor_running = 0;
- pthread_join(cursor_thread, NULL);
- printf("cursor stopped\n");
- return 0;
- }
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