feat: 开启 host LVGL 本地资源能力

Author: yuwei

config/host_macos/lv_conf.h

@@ -63,6 +63,21 @@
 #define LV_USE_STDIO 1
 #define LV_USE_STDLIB 1
 
+#define LV_USE_FS_STDIO 1
+#define LV_FS_STDIO_LETTER 'A'
+#define LV_FS_STDIO_PATH ""
+#define LV_FS_STDIO_CACHE_SIZE 0
+
+#define LV_USE_LODEPNG 1
+#define LV_USE_TJPGD 1
+#define LV_USE_BMP 1
+#define LV_USE_LIBPNG 0
+#define LV_USE_LIBJPEG_TURBO 0
+
+#define LV_USE_TINY_TTF 1
+#define LV_TINY_TTF_FILE_SUPPORT 1
+#define LV_USE_FREETYPE 0
+
 #define LV_USE_THEME_DEFAULT 1
 #define LV_USE_THEME_SIMPLE 1
 #define LV_USE_THEME_MONO 1

dist/lvgl/host_macos/include/lv_conf.h

@@ -63,6 +63,21 @@
 #define LV_USE_STDIO 1
 #define LV_USE_STDLIB 1
 
+#define LV_USE_FS_STDIO 1
+#define LV_FS_STDIO_LETTER 'A'
+#define LV_FS_STDIO_PATH ""
+#define LV_FS_STDIO_CACHE_SIZE 0
+
+#define LV_USE_LODEPNG 1
+#define LV_USE_TJPGD 1
+#define LV_USE_BMP 1
+#define LV_USE_LIBPNG 0
+#define LV_USE_LIBJPEG_TURBO 0
+
+#define LV_USE_TINY_TTF 1
+#define LV_TINY_TTF_FILE_SUPPORT 1
+#define LV_USE_FREETYPE 0
+
 #define LV_USE_THEME_DEFAULT 1
 #define LV_USE_THEME_SIMPLE 1
 #define LV_USE_THEME_MONO 1

dist/lvgl/host_macos/lib/liblvgl.a

@@ -10,6 +10,10 @@ sdl2.version=2.32.10
 sdl2.cflags=-I/opt/homebrew/include/SDL2 -D_THREAD_SAFE
 sdl2.libs=-L/opt/homebrew/lib -lSDL2
 demo_widgets=enabled
-lv_conf_hash=85cbf321b69fb36c00c6ce85b349efd265bc6dd4cbd364e278607d78a08fb9ba
-lib_hash=0ddf50562b7f63c94cdcba3ee400a7ae75ce628bbefd6633f34178b2f77f01e2
-demo_lib_hash=963c69b0735431f46a8169092695ccc64a754d0c0cf11d1a40b06991bc7aec3f
+local_assets=enabled
+filesystem=stdio:A
+image_decoders=lodepng,tjpgd,bmp
+font_loader=tiny_ttf_file
+lv_conf_hash=8a6b524f852e18018c63b06a5d0145e8385c3af28aa1b9815a1b764b1f6b6ba8
+lib_hash=ec1e8d63b237ae227e63dd0d0869e4cbd3ac4054da249c5a4f78defea634751c
+demo_lib_hash=b7af8d44224ddde951ffa6a5ac8dce32ed5b42ea8211724b57098a563c4d5da9

dist/lvgl/host_macos/lib/liblvgl_demos.a

@@ -80,6 +80,10 @@ sdl2.version=${sdl2_version}
 sdl2.cflags=${sdl2_cflags}
 sdl2.libs=${sdl2_libs}
 demo_widgets=enabled
+local_assets=enabled
+filesystem=stdio:A
+image_decoders=lodepng,tjpgd,bmp
+font_loader=tiny_ttf_file
 lv_conf_hash=${conf_hash}
 lib_hash=${lib_hash}
 demo_lib_hash=${demo_lib_hash}

dist/lvgl/host_macos/lvgl_package.txt

@@ -14,6 +14,9 @@ test -f "${dist_dir}/lvgl_package.txt"
 test -f "${dist_dir}/include/demos/lv_demos.h"
 test -f "${dist_dir}/include/demos/widgets/lv_demo_widgets.h"
 grep -q "demo_widgets=enabled" "${dist_dir}/lvgl_package.txt"
+grep -q "local_assets=enabled" "${dist_dir}/lvgl_package.txt"
+grep -q "image_decoders=lodepng,tjpgd,bmp" "${dist_dir}/lvgl_package.txt"
+grep -q "font_loader=tiny_ttf_file" "${dist_dir}/lvgl_package.txt"
 
 rm -rf "${tmp_dir}"
 mkdir -p "${tmp_dir}"
@@ -55,6 +58,38 @@ cc -std=c11 \
   "${dist_dir}/lib/liblvgl.a" \
   -o "${tmp_dir}/verify_widgets_demo"
 
+cat > "${tmp_dir}/verify_local_assets.c" <<'EOF'
+#include "lvgl.h"
+#include "src/libs/lodepng/lv_lodepng.h"
+#include "src/libs/tjpgd/lv_tjpgd.h"
+#include "src/libs/bmp/lv_bmp.h"
+#include "src/libs/tiny_ttf/lv_tiny_ttf.h"
+
+int main(void)
+{
+    lv_init();
+    lv_lodepng_init();
+    lv_tjpgd_init();
+    lv_bmp_init();
+    lv_tiny_ttf_init();
+
+    (void)lv_tiny_ttf_create_file("A:/tmp/font.ttf", 16);
+
+    lv_tiny_ttf_deinit();
+    lv_bmp_deinit();
+    lv_tjpgd_deinit();
+    lv_lodepng_deinit();
+    lv_deinit();
+    return 0;
+}
+EOF
+
+cc -std=c11 \
+  -I"${dist_dir}/include" \
+  "${tmp_dir}/verify_local_assets.c" \
+  "${dist_dir}/lib/liblvgl.a" \
+  -o "${tmp_dir}/verify_local_assets"
+
 sdl2_cflags="$(sdl2-config --cflags)"
 sdl2_libs="$(sdl2-config --libs)"
 sdl2_include_dir="$(sdl2-config --prefix)/include"

scripts/build_host_macos.sh

@@ -19,6 +19,23 @@ def test_lv_conf_enables_sdl2_without_sdl_draw_backend():
     assert "#define LV_USE_DEMO_WIDGETS 1" in lv_conf
 
 
+def test_lv_conf_enables_local_file_image_and_font_assets():
+    lv_conf = (REPO_ROOT / "config/host_macos/lv_conf.h").read_text(encoding="utf-8")
+
+    assert "#define LV_USE_FS_STDIO 1" in lv_conf
+    assert "#define LV_FS_STDIO_LETTER 'A'" in lv_conf
+    assert '#define LV_FS_STDIO_PATH ""' in lv_conf
+    assert "#define LV_FS_STDIO_CACHE_SIZE 0" in lv_conf
+    assert "#define LV_USE_LODEPNG 1" in lv_conf
+    assert "#define LV_USE_TJPGD 1" in lv_conf
+    assert "#define LV_USE_BMP 1" in lv_conf
+    assert "#define LV_USE_TINY_TTF 1" in lv_conf
+    assert "#define LV_TINY_TTF_FILE_SUPPORT 1" in lv_conf
+    assert "#define LV_USE_LIBPNG 0" in lv_conf
+    assert "#define LV_USE_LIBJPEG_TURBO 0" in lv_conf
+    assert "#define LV_USE_FREETYPE 0" in lv_conf
+
+
 def test_cmake_wires_sdl2_config_into_lvgl_target():
     cmake = (REPO_ROOT / "CMakeLists.txt").read_text(encoding="utf-8")
 
@@ -49,6 +66,9 @@ def test_build_script_requires_sdl2_and_writes_manifest_metadata():
     assert "cmake --build \"${build_dir}\" --target lvgl lvgl_demos" in script
     assert "cp \"${build_dir}/lib/liblvgl_demos.a\" \"${dist_dir}/lib/liblvgl_demos.a\"" in script
     assert "demo_widgets=enabled" in script
+    assert "local_assets=enabled" in script
+    assert "image_decoders=lodepng,tjpgd,bmp" in script
+    assert "font_loader=tiny_ttf_file" in script
     assert "demo_lib_hash=${demo_lib_hash}" in script
 
 
@@ -62,9 +82,12 @@ def test_package_exports_widgets_demo_library_headers_and_manifest():
     assert 'find "${source_dir}/demos" -type f -name' in script
     assert 'cp "${header}" "${dist_dir}/include/${relative_path}"' in script
     assert 'grep -q "demo_widgets=enabled" "${dist_dir}/lvgl_package.txt"' in verify
+    assert 'grep -q "local_assets=enabled" "${dist_dir}/lvgl_package.txt"' in verify
+    assert 'grep -q "image_decoders=lodepng,tjpgd,bmp" "${dist_dir}/lvgl_package.txt"' in verify
+    assert 'grep -q "font_loader=tiny_ttf_file" "${dist_dir}/lvgl_package.txt"' in verify
 
 
-def test_verify_script_compiles_sdl2_demo_and_runs_only_when_requested():
+def test_verify_script_compiles_resource_decoder_font_and_sdl2_demos():
     script = (REPO_ROOT / "scripts/verify_package.sh").read_text(encoding="utf-8")
 
     assert "examples/host_macos_sdl2_demo.c" in script
@@ -78,6 +101,16 @@ def test_verify_script_compiles_sdl2_demo_and_runs_only_when_requested():
     assert '#include "demos/widgets/lv_demo_widgets.h"' in script
     assert "(void)lv_demo_widgets;" in script
     assert '"${dist_dir}/lib/liblvgl_demos.a"' in script
+    assert "verify_local_assets.c" in script
+    assert '#include "src/libs/lodepng/lv_lodepng.h"' in script
+    assert '#include "src/libs/tjpgd/lv_tjpgd.h"' in script
+    assert '#include "src/libs/bmp/lv_bmp.h"' in script
+    assert '#include "src/libs/tiny_ttf/lv_tiny_ttf.h"' in script
+    assert "lv_lodepng_init();" in script
+    assert "lv_tjpgd_init();" in script
+    assert "lv_bmp_init();" in script
+    assert "lv_tiny_ttf_init();" in script
+    assert '(void)lv_tiny_ttf_create_file("A:/tmp/font.ttf", 16);' in script
 
 
 def test_sdl2_demo_uses_lvgl_sdl_window_input_and_label():