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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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