AskaEth
54750a63c5
问题：SDK 位图字库（meow_font）只有离散字号档位，全字形 atlas 稳态 17.3MiB （27MB 整机装不下）→ 大字库/大字号必出豆腐。阅读器 R1/R2 的 FreeType 管线已真机验证 （MiSans OTF），本 commit 将其上收 SDK，让任意 App 用上无级字号 + CJK 全字形。 设计（追加式，与位图字库并存）： - meow_ui_ft.c（独立 .o）：meow_ft_load/unload/loaded/text/width/line_height/ ascender/descender/cache_set_slots/cache_slots/cache_used。底层按 READER_ENGINE_NOTES §5： FT_New_Face(path) 按需读文件（零整载 anon）；灰阶 FT_LOAD_RENDER|NO_HINTING|TARGET_LIGHT； glyph LRU key=(px<<32)|cp，默认 512（~0.46MB），可配 256/1024；测宽不栅格化。 - meow_ui_gfx.c 只加两个薄封装 meow_gfx_ft_blend_px/dirty（写 back_buf + 标脏）， 使 meow_ui_ft.o 不引入新依赖——「不调 meow_ft_* 的 App 零增量」（freetype 不拉入，已验证）。 - 降级：加载失败/无卡 → meow_ft_loaded()==0 → meow_ft_text 自动改走 meow_ui_text（位图字库， 5x7 兜底），绝不豆腐不崩；meow_ft_width/line_height 降级位图字库度量。 - FreeType 2.14.3 vendor 进 patch_v2/sdk/vendor/（gitignore）+ build_sdk.sh 可复现拉取+裁剪 构建（-DFT_DISABLE_ZLIB/BZIP2/PNG/HARFBUZZ/BROTLI=TRUE，静态 musl），freetype .o 编入 meow_ui.a，App 链接命令不变（meow_ui.a libz.a -lpthread）。 验证： - 宿主 test_meow_ui_ft 5 项全 PASS（加载/渲染像素非空/宽度测量/LRU 淘汰/降级回退）。 - 全量 SDK 回归：widgets/sdk_fixes/dispatch/notif_gesture/overlay_suppress/listvirt/box/anim/ scroll/ime_fix/pinyin/notif_open/sb_collapse/theme/notify_ipc/audio_host/vol/str/config/ sdk_input_keys 全 PASS。 - 交叉 -Wall -Wextra 全 SDK TU 0 warning；qemu-mipsel 冒烟 PASS（mipsel FreeType 真光栅化）。 - meow_ui.a 新 md5 6ff5be9455f9e197b35fa120be012041（未重链不部署 App，四 App 免重链）。 MEOW_APP_SDK.md 补 §10.1 矢量字一节 + 公共头索引/§9 构建约定更新；.gitignore 忽略 patch_v2/sdk/vendor/ 与 test_meow_ui_ft 二进制。
100 lines
4.5 KiB
C
100 lines
4.5 KiB
C
/* test_meow_ui_ft.c — SDK 矢量字（meow_ft_*，§10.1）宿主单测。
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* 覆盖任务要求的五项：加载 / 渲染像素非空 / 宽度测量 / LRU 淘汰 / 降级回退。
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*
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* 编译（宿主 gcc，链真实 gfx/sys/theme/vol/log/notify_ipc + 打桩 font/global + meow_ui_ft + 宿主 freetype）：
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* gcc -o test_meow_ui_ft test_meow_ui_ft.c test_host_stub.c \
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* meow_ui_gfx.c meow_ui_sys.c meow_ui_theme.c meow_ui_vol.c meow_ui_log.c meow_notify_ipc.c \
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* meow_ui_ft.c \
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* -I. -Iinclude -I../meow_launcherd -DMEOW_UI_HOST_TEST -pthread vendor/freetype-build-host/libfreetype.a
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* 用法：./test_meow_ui_ft [font.otf] （缺省用仓库 font/src/MiSans-Regular.otf）
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*/
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#include "meow_ui.h"
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#include "meow_ui_internal.h" /* meow_ft_glyph（LRU 淘汰测试直接用底层光栅化） */
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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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static int fails = 0;
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#define CHECK(c, m) do { if (c) printf(" ok %s\n", m); else { printf("FAIL %s\n", m); fails++; } } while (0)
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/* 统计 back_buf 中 != bg 的像素数（RGB565 host 16bpp）。 */
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static int count_changed(unsigned char *fb, int pitch, int bg565)
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{
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int n = 0;
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for (int y = 0; y < 720; y++) {
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uint16_t *row = (uint16_t *)(fb + (size_t)y * (size_t)pitch);
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for (int x = 0; x < 480; x++) if (row[x] != (uint16_t)bg565) n++;
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}
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return n;
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}
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int main(int argc, char **argv)
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{
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const char *font = (argc > 1) ? argv[1] : "/home/Aska/Project/R3ProII/font/src/MiSans-Regular.otf";
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meow_ui_opts o = { 480, 720 };
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CHECK(meow_ui_init(&o) == 0, "meow_ui_init(480x720)");
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int pitch = meow_ui_back_buf_pitch();
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CHECK(pitch == 480 * 2, "back_buf pitch=960");
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CHECK(meow_ui_back_buf_bpp() == 16, "bpp=16");
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unsigned char *fb = meow_ui_back_buf();
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CHECK(fb != NULL, "back_buf non-null");
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/* ---- 1) 加载 ---- */
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CHECK(!meow_ft_loaded(), "no font loaded initially");
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CHECK(meow_ft_load("nonexistent-font.otf") != 0, "load(bad path) fails");
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CHECK(!meow_ft_loaded(), "bad load leaves unloaded");
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CHECK(meow_ft_load(font) == 0, "meow_ft_load(MiSans)");
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CHECK(meow_ft_loaded(), "meow_ft_loaded after load");
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CHECK(meow_ft_cache_slots() == 512, "default LRU slots=512");
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/* ---- 2) 渲染像素非空（矢量） ---- */
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meow_ui_clear(0xFFFFFF); /* 白底 */
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int r = meow_ft_text(10, 50, "你好A", 20, 0x000000);
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CHECK(r == 0, "meow_ft_text(vec) returns 0");
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int vec_dark = count_changed(fb, pitch, 0xFFFF);
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printf(" vec dark=%d\n", vec_dark);
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CHECK(vec_dark > 50, "vector render produced non-empty pixels");
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/* ---- 3) 宽度测量 ---- */
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int w20 = meow_ft_width("你好A", 20);
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int w10 = meow_ft_width("你好A", 10);
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printf(" width(你好A,20)=%d width(...,10)=%d\n", w20, w10);
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CHECK(w20 > 0, "vec width(20)>0");
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CHECK(w20 > w10, "larger px -> larger width");
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CHECK(meow_ft_width("", 20) == 0, "empty string width=0");
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CHECK(meow_ft_width("你", 20) > 0, "CJK width>0");
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/* 单 CJK 字 width ≈ 字号（MiSans CJK 满宽 advance） */
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CHECK(meow_ft_width("你", 20) >= 17 && meow_ft_width("你", 20) <= 23, "CJK adv ~20");
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/* ---- 4) LRU 淘汰 ---- */
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int got = meow_ft_cache_set_slots(256);
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CHECK(got == 256, "set LRU slots=256");
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CHECK(meow_ft_cache_slots() == 256, "LRU slots now 256");
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for (int i = 0; i < 300; i++) {
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int adv = 0, bw = 0, bh = 0, left = 0, top = 0;
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const uint8_t *bmp = NULL;
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meow_ft_glyph(20, 0x4E00u + (uint32_t)i, &adv, &bmp, &bw, &bh, &left, &top);
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}
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int used = meow_ft_cache_used();
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printf(" lru used=%d slots=256\n", used);
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CHECK(used <= 256, "lru used <= 256 after 300 requests");
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CHECK(used >= 1, "lru used >= 1");
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meow_ft_cache_set_slots(512); /* 还原默认，供后续 */
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/* ---- 5) 降级回退（无矢量字体 → 位图字库/5x7，不出豆腐） ---- */
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meow_ft_unload();
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CHECK(!meow_ft_loaded(), "after unload not loaded");
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meow_ui_clear(0xFFFFFF);
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r = meow_ft_text(10, 50, "X", 20, 0x000000);
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CHECK(r == -1, "meow_ft_text degrades (returns -1)");
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int deg_dark = count_changed(fb, pitch, 0xFFFF);
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printf(" degrade dark=%d\n", deg_dark);
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CHECK(deg_dark > 0, "degrade still draws (5x7/bitmap, no tofu crash)");
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/* 降级宽度 = 位图字库宽度（宿主无位图库 → 5x7 兜底：len*6*scale(20=2)） */
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CHECK(meow_ft_width("X", 20) == 12, "degrade width via bitmap (5x7) = 12");
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meow_ui_shutdown();
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printf("test_meow_ui_ft: %s\n", fails ? "FAIL" : "PASS");
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return fails ? 1 : 0;
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}
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