diff options
Diffstat (limited to 'slideshow')
| -rw-r--r-- | slideshow/Android.mk | 16 | ||||
| -rw-r--r-- | slideshow/slideshow.cpp | 154 |
2 files changed, 170 insertions, 0 deletions
diff --git a/slideshow/Android.mk b/slideshow/Android.mk new file mode 100644 index 00000000..8c782c30 --- /dev/null +++ b/slideshow/Android.mk @@ -0,0 +1,16 @@ +# Copyright 2015 The Android Open Source Project + +LOCAL_PATH := $(call my-dir) + +include $(CLEAR_VARS) +LOCAL_SRC_FILES := slideshow.cpp +LOCAL_MODULE := slideshow +LOCAL_MODULE_TAGS := optional +LOCAL_FORCE_STATIC_EXECUTABLE := true +LOCAL_MODULE_PATH := $(TARGET_ROOT_OUT_SBIN) +LOCAL_UNSTRIPPED_PATH := $(TARGET_ROOT_OUT_SBIN_UNSTRIPPED) + +LOCAL_CFLAGS := -D__STDC_LIMIT_MACROS -Werror +LOCAL_C_INCLUDES := bootable/recovery +LOCAL_STATIC_LIBRARIES := libminui libpng libz libutils libstdc++ libcutils liblog libm libc +include $(BUILD_EXECUTABLE) diff --git a/slideshow/slideshow.cpp b/slideshow/slideshow.cpp new file mode 100644 index 00000000..25a22062 --- /dev/null +++ b/slideshow/slideshow.cpp @@ -0,0 +1,154 @@ +/* + * Copyright (C) 2015 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include <unistd.h> +#include <stdlib.h> +#include <limits.h> +#include <time.h> +#include <linux/input.h> +#include <cutils/klog.h> +#include "minui/minui.h" + +#define NEXT_TIMEOUT_MS 5000 +#define LAST_TIMEOUT_S 30 + +#define LOGE(x...) do { KLOG_ERROR("slideshow", x); } while (0) + +static int input_cb(int fd, unsigned int epevents, void *data) +{ + struct input_event ev; + int *key_code = (int *)data; + + *key_code = -1; + + if (ev_get_input(fd, epevents, &ev)) { + return -1; + } + + if (ev.type == EV_KEY) { + *key_code = ev.code; + } + + return 0; +} + +static void clear() +{ + gr_color(0, 0, 0, 0); + gr_clear(); + gr_flip(); +} + +static void draw(const char *resname) +{ + gr_surface surface; + int w, h, x, y; + + if (res_create_display_surface(resname, &surface) < 0) { + LOGE("failed to create surface for %s\n", resname); + return; + } + + w = gr_get_width(surface); + h = gr_get_height(surface); + x = (gr_fb_width() - w) / 2; + y = (gr_fb_height() - h) / 2; + + gr_blit(surface, 0, 0, w, h, x, y); + gr_flip(); + + res_free_surface(surface); +} + +int usage() +{ + LOGE("usage: slideshow [-t timeout] image.png [image2.png ...] last.png\n"); + return EXIT_FAILURE; +} + +int main(int argc, char **argv) +{ + int key_code = -1; + int input = false; + int opt; + long int timeout = NEXT_TIMEOUT_MS; + time_t start; + + while ((opt = getopt(argc, argv, "t")) != -1) { + switch (opt) { + case 't': + timeout = strtol(optarg, NULL, 0); + + if (timeout < 0 || timeout >= LONG_MAX) { + timeout = NEXT_TIMEOUT_MS; + LOGE("invalid timeout %s, defaulting to %u\n", optarg, + timeout); + } + break; + default: + return usage(); + } + } + + if (optind >= argc) { + return usage(); + } + + if (gr_init() == -1 || ev_init(input_cb, &key_code) == -1) { + LOGE("failed to initialize minui\n"); + return EXIT_FAILURE; + } + + /* display all images except the last one, switch to next image after + * timeout or user input */ + + while (optind < argc - 1) { + draw(argv[optind++]); + + if (ev_wait(timeout) == 0) { + ev_dispatch(); + + if (key_code != -1) { + input = true; + } + } + }; + + /* if there was user input while showing the images, display the last + * image and wait until the power button is pressed or LAST_TIMEOUT_S + * has elapsed */ + + if (input) { + start = time(NULL); + draw(argv[optind]); + + do { + if (ev_wait(timeout) == 0) { + ev_dispatch(); + } + + if (time(NULL) - start >= LAST_TIMEOUT_S) { + break; + } + } while (key_code != KEY_POWER); + } + + clear(); + gr_exit(); + ev_exit(); + + return EXIT_SUCCESS; +} |