MeowOS
e6f0b665e3
- 14 模块 .c + meow_launcher_internal.h(642): util/font_theme/fb_compositor/settings_page/power_menu/notif_center/app_launcher/main_menu/audio/backlight/net/keys/about/statusbar; meow_launcherd.c 已删 - 按行逐字搬移(0-diff), 118函数提升非static+47组extern(内部头), #if0退役区不编入(源码留.pre_split.bak) - 关于本机小改: 作者 AskaEth/17 + info/item[13]防越界 + s_dd_modal 超高滚动(clamp/触摸滚动/音量键跟随/裁剪, 仅超高启用) - build_launcher.sh 编译列表→模块; 文档/注释引用 meow_launcherd.c→模块/目录 - 编译0warning/-Wall -Wextra告警集与原文一致(77条无新增)/qemu-mipsel冒烟一致(--scan/--sysdump); launcher=c0799357(505KB; md5因多文件重编译与原文异,非回归依据) - 备份 meow_launcherd.c.pre_split.bak/meow_launcherd.pre_split.bak; M2.69(0.7.64)已推卡并用户验证OK
53 lines
2.0 KiB
C
53 lines
2.0 KiB
C
/*
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* meow_ui_vol.c — SDK 状态栏音量换算纯函数 + settings.conf 读取（A-0 核心数源）。
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*
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* 单独成 TU 的目的：
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* 1. 纯函数（clamp / 键读取）不依赖 meow_ui 其它子系统，宿主 gcc 直接可测
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* （test_meow_ui_vol.c），无需链整库/stub。
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* 2. 把「音量从 settings 读数并 clamp 到 volume_max」这一语义钉死在单点，
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* 与 launcher 的 vol_clamp（audio.c）口径对齐，杜绝两端音量漂移。
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*
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* 数据源：/usr/data/meow/settings.conf 扁平 key=value。launcher meow_settings.c
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* 落盘为 "key = value"（带空格），本解析兼容无空格/多空格，与 launcher 读循环
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* 及 sdk meow_ui_theme.c 的 get_setting_str 同款解析。
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*/
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#include "meow_ui_vol.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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int meow_ui_vol_clamp(int vol, int vol_max)
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{
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if (vol < 0) vol = 0;
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if (vol > MEOW_UI_VOL_MAX) vol = MEOW_UI_VOL_MAX;
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if (vol_max < 0) vol_max = 0; /* 异常上限兜底：不进负值 */
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if (vol > vol_max) vol = vol_max;
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return vol;
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}
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int meow_ui_vol_read(const char *path, const char *key, int def)
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{
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if (!path || !key) return def;
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FILE *f = fopen(path, "r");
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if (!f) return def;
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int kl = (int)strlen(key);
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char line[160];
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char *found = NULL;
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while (fgets(line, sizeof line, f)) {
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char *eq = strchr(line, '=');
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if (!eq) continue; /* 非 key=value 行（注释/空行）跳过 */
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char *k = line;
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while (*k == ' ' || *k == '\t') k++; /* key 左去空白 */
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int n = (int)(eq - k);
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while (n > 0 && (k[n-1] == ' ' || k[n-1] == '\t')) n--; /* key 右去空白 */
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if (n != kl || strncmp(k, key, (size_t)kl) != 0) continue; /* key 不精确匹配 */
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found = eq + 1; /* 命中所求键 */
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break;
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}
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fclose(f);
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if (!found) return def;
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while (*found == ' ' || *found == '\t') found++; /* value 左去空白；atoi 天然停于非数字 */
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return atoi(found);
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}
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