Sami Tolvanen | a0f13e0 | 2015-02-19 10:44:12 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2015 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | #include <unistd.h> |
| 18 | #include <stdlib.h> |
| 19 | #include <limits.h> |
| 20 | #include <time.h> |
| 21 | #include <linux/input.h> |
| 22 | #include <cutils/klog.h> |
| 23 | #include "minui/minui.h" |
| 24 | |
| 25 | #define NEXT_TIMEOUT_MS 5000 |
| 26 | #define LAST_TIMEOUT_S 30 |
| 27 | |
| 28 | #define LOGE(x...) do { KLOG_ERROR("slideshow", x); } while (0) |
| 29 | |
| 30 | static int input_cb(int fd, unsigned int epevents, void *data) |
| 31 | { |
| 32 | struct input_event ev; |
| 33 | int *key_code = (int *)data; |
| 34 | |
| 35 | *key_code = -1; |
| 36 | |
| 37 | if (ev_get_input(fd, epevents, &ev)) { |
| 38 | return -1; |
| 39 | } |
| 40 | |
| 41 | if (ev.type == EV_KEY) { |
| 42 | *key_code = ev.code; |
| 43 | } |
| 44 | |
| 45 | return 0; |
| 46 | } |
| 47 | |
| 48 | static void clear() |
| 49 | { |
| 50 | gr_color(0, 0, 0, 0); |
| 51 | gr_clear(); |
| 52 | gr_flip(); |
| 53 | } |
| 54 | |
| 55 | static void draw(const char *resname) |
| 56 | { |
Elliott Hughes | 99e2aca | 2015-04-15 10:23:15 -0700 | [diff] [blame] | 57 | GRSurface* surface; |
Sami Tolvanen | a0f13e0 | 2015-02-19 10:44:12 +0000 | [diff] [blame] | 58 | int w, h, x, y; |
| 59 | |
| 60 | if (res_create_display_surface(resname, &surface) < 0) { |
| 61 | LOGE("failed to create surface for %s\n", resname); |
| 62 | return; |
| 63 | } |
| 64 | |
| 65 | w = gr_get_width(surface); |
| 66 | h = gr_get_height(surface); |
| 67 | x = (gr_fb_width() - w) / 2; |
| 68 | y = (gr_fb_height() - h) / 2; |
| 69 | |
| 70 | gr_blit(surface, 0, 0, w, h, x, y); |
| 71 | gr_flip(); |
| 72 | |
| 73 | res_free_surface(surface); |
| 74 | } |
| 75 | |
| 76 | int usage() |
| 77 | { |
| 78 | LOGE("usage: slideshow [-t timeout] image.png [image2.png ...] last.png\n"); |
| 79 | return EXIT_FAILURE; |
| 80 | } |
| 81 | |
| 82 | int main(int argc, char **argv) |
| 83 | { |
| 84 | int key_code = -1; |
| 85 | int input = false; |
| 86 | int opt; |
| 87 | long int timeout = NEXT_TIMEOUT_MS; |
| 88 | time_t start; |
| 89 | |
| 90 | while ((opt = getopt(argc, argv, "t")) != -1) { |
| 91 | switch (opt) { |
| 92 | case 't': |
| 93 | timeout = strtol(optarg, NULL, 0); |
| 94 | |
| 95 | if (timeout < 0 || timeout >= LONG_MAX) { |
| 96 | timeout = NEXT_TIMEOUT_MS; |
Sami Tolvanen | 5b97aa6 | 2015-04-01 17:53:41 +0100 | [diff] [blame] | 97 | LOGE("invalid timeout %s, defaulting to %ld\n", optarg, |
Sami Tolvanen | a0f13e0 | 2015-02-19 10:44:12 +0000 | [diff] [blame] | 98 | timeout); |
| 99 | } |
| 100 | break; |
| 101 | default: |
| 102 | return usage(); |
| 103 | } |
| 104 | } |
| 105 | |
| 106 | if (optind >= argc) { |
| 107 | return usage(); |
| 108 | } |
| 109 | |
| 110 | if (gr_init() == -1 || ev_init(input_cb, &key_code) == -1) { |
| 111 | LOGE("failed to initialize minui\n"); |
| 112 | return EXIT_FAILURE; |
| 113 | } |
| 114 | |
| 115 | /* display all images except the last one, switch to next image after |
| 116 | * timeout or user input */ |
| 117 | |
| 118 | while (optind < argc - 1) { |
| 119 | draw(argv[optind++]); |
| 120 | |
| 121 | if (ev_wait(timeout) == 0) { |
| 122 | ev_dispatch(); |
| 123 | |
| 124 | if (key_code != -1) { |
| 125 | input = true; |
| 126 | } |
| 127 | } |
| 128 | }; |
| 129 | |
| 130 | /* if there was user input while showing the images, display the last |
| 131 | * image and wait until the power button is pressed or LAST_TIMEOUT_S |
| 132 | * has elapsed */ |
| 133 | |
| 134 | if (input) { |
| 135 | start = time(NULL); |
| 136 | draw(argv[optind]); |
| 137 | |
| 138 | do { |
| 139 | if (ev_wait(timeout) == 0) { |
| 140 | ev_dispatch(); |
| 141 | } |
| 142 | |
| 143 | if (time(NULL) - start >= LAST_TIMEOUT_S) { |
| 144 | break; |
| 145 | } |
| 146 | } while (key_code != KEY_POWER); |
| 147 | } |
| 148 | |
| 149 | clear(); |
| 150 | gr_exit(); |
| 151 | ev_exit(); |
| 152 | |
| 153 | return EXIT_SUCCESS; |
| 154 | } |