reader R1: os.meow.reader 书架+TXT 垂直链路骨架

- core: 编码检测(BOM→UTF-8严格→GB18030/Big5统计, Big5与GB重叠按GB18030兜底, §3.5风险注明) + GB18030双字节码表(uint16[126][190]=47880B, tools/gen_gb18030_table.py 生成, 生成物入仓) + 流式排版器(贪心断行+Kinsoku避头尾+分页+重排锚定, rd_meas_fn 测量回调替 FreeType, 宿主可测) + TXT 流式加载器(按段读, 不整文件入内存, \n 恒独立换行可安全分段) - engine: FreeType 封装(FT_New_Face 按需读文件, NO_HINTING/LIGHT 灰阶, LRU 512 key=码点+字号, blend565, rdft_advance 只测宽不栅格化) - app: 书架(扫 Books/ 识别 5 后缀, 最近读置顶, 空态提示) + 阅读页(W_CUSTOM 画布 3 栏翻页 +中央菜单占位(字号±/行距±/返回) +顶栏进度%/章节名) + 书桥(段表+flat 页索引, 渲染, 重排回锚) + 进度持久化(MeowData/os.meow.reader/progress/, path hash→seg/ch/fs/ls/ts) - 取舍: 正文字体 FreeType 直读 TF MeowOS/fonts/ TTF/OTF; 无字体回退 SDK 位图字库(meow_ui_text, 未打包字体(许可/体积), 全 glyph 兜底 R2); 页位图缓存当前+前后各1页(3×691KB), 翻页动画默认无 - 内存实测(宿主 --wrap malloc, 73页书): 书结构 130KB + 当前段刮擦~1.6MB(行/页容量按 n 偏高,R2 收紧) + 字形缓存~650KB + 3页位图 2.07MB ≈ 4.45MB 动态, 在 ≤8MB 阅读态预算内 - 测试: 宿主 core 58/58(enc/gb18030金标准/kinsoku/page/reflow/txt); qemu-mipsel ft_smoke PASS + book_smoke(12页/渲染有墨/翻页/重排回锚) PASS; reader 交叉 -Wall -Wextra 0 warning - 产物: reader(mipsel 静态1.2MB)+build_reader.sh(vendor FreeType 可复现); vendor/二进制 gitignore
2026-09-01 23:26:42 +08:00
1 parent 33d3059038
commit 553a7d5d9e
@@ -0,0 +1,102 @@
+/* app/progress.c — 进度持久化（实现见 app/progress.h）。 */
+#include "progress.h"
+#include "meow_ui.h"        /* meow_config_dir() */
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+
+/* 从 MEOW_DATA_DIR（<TF>/MeowData/<pkg>/data）剥掉尾 "/data"，得到 <TF>/MeowData/<pkg>。 */
+static void strip_data_suffix(const char *d, char *out, int outsz)
+{
+    if (!d || !d[0]) { strncpy(out, "/tmp", (size_t)outsz - 1); out[outsz - 1] = 0; return; }
+    size_t n = strlen(d);
+    const char *suffix = "/data";
+    size_t sl = strlen(suffix);
+    size_t keep;
+    if (n >= sl && strcmp(d + n - sl, suffix) == 0) keep = n - sl;
+    else keep = n;
+    if (keep >= (size_t)outsz) keep = (size_t)outsz - 1;
+    memcpy(out, d, keep);
+    out[keep] = 0;
+}
+
+int rdprog_dir(char *out, int outsz)
+{
+    if (!out || outsz <= 0) return -1;
+    const char *data = meow_config_dir();
+    char base[360];
+    strip_data_suffix(data ? data : "", base, sizeof base);
+    if (snprintf(out, (size_t)outsz, "%s/progress", base) >= outsz) return -2;
+    /* mkdir -p */
+    char tmp[400];
+    strncpy(tmp, out, sizeof tmp - 1); tmp[sizeof tmp - 1] = 0;
+    for (char *p = tmp + 1; *p; p++) {
+        if (*p == '/') { *p = 0; mkdir(tmp, 0755); *p = '/'; }
+    }
+    mkdir(tmp, 0755);
+    return 0;
+}
+
+void rdprog_hash(const char *book_path, char *out, int outsz)
+{
+    uint32_t h = 2166136261u;
+    for (const unsigned char *p = (const unsigned char *)book_path; *p; p++) {
+        h ^= *p; h *= 16777619u;
+    }
+    snprintf(out, (size_t)outsz, "%08x.prog", h);
+}
+
+static int rdprog_path(const char *book_path, char *out, int outsz,
+                       int *created_dir)
+{
+    char dir[400];
+    if (rdprog_dir(dir, sizeof dir) != 0) return -1;
+    char name[24];
+    rdprog_hash(book_path, name, sizeof name);
+    if (snprintf(out, (size_t)outsz, "%s/%s", dir, name) >= outsz) return -2;
+    if (created_dir) *created_dir = 1;
+    return 0;
+}
+
+int rdprog_load(const char *book_path, rdprog *p)
+{
+    if (!book_path || !p) return -1;
+    char path[440];
+    if (rdprog_path(book_path, path, sizeof path, NULL) != 0) return -1;
+    FILE *f = fopen(path, "rb");
+    if (!f) return 0;
+    char line[256];
+    int seg = 0, fs = 0, ls = 0; int32_t ch = 0; uint64_t ts = 0; int v = 0, found = 0;
+    while (fgets(line, sizeof line, f)) {
+        if (sscanf(line, "v=%d", &v) == 1) { if (v == 1) found = 1; }
+        else if (sscanf(line, "seg=%d", &seg) == 1) { /* no-op */ }
+        else if (sscanf(line, "ch=%d", &ch) == 1) { /* no-op */ }
+        else if (sscanf(line, "fs=%d", &fs) == 1) { /* no-op */ }
+        else if (sscanf(line, "ls=%d", &ls) == 1) { /* no-op */ }
+        else if (sscanf(line, "ts=%llu", (unsigned long long *)&ts) == 1) { /* no-op */ }
+    }
+    fclose(f);
+    if (!found) return 0;
+    p->valid = 1; p->seg = seg; p->ch = ch; p->fs = fs; p->ls = ls; p->ts = ts;
+    return 1;
+}
+
+int rdprog_save(const char *book_path, const rdprog *p)
+{
+    if (!book_path || !p) return -1;
+    char path[440];
+    if (rdprog_path(book_path, path, sizeof path, NULL) != 0) return -1;
+    FILE *f = fopen(path, "wb");
+    if (!f) return -1;
+    /* 先写临时再改原子（exFAT 无 rename+replace 语义保证，直接写亦可接受） */
+    fprintf(f, "v=1\n");
+    fprintf(f, "seg=%d\n", p->seg);
+    fprintf(f, "ch=%d\n", (int)p->ch);
+    fprintf(f, "fs=%d\n", p->fs);
+    fprintf(f, "ls=%d\n", p->ls);
+    fprintf(f, "ts=%llu\n", (unsigned long long)p->ts);
+    fclose(f);
+    return 0;
+}