6.6.3 - Alpha5 - images.save 方法使用 quality 参数时支持 png 格式的文件体积压缩 (issue #367)

libs/imagequant/CMakeLists.txt

@@ -0,0 +1,32 @@
+cmake_minimum_required(VERSION 3.22)
+project(pngquant_bridge LANGUAGES C CXX)
+
+set(CMAKE_C_STANDARD 99)
+
+# --- 1. zlib（NDK 自带） ---
+find_library(ZLIB_LIB z)          # libz.so
+
+# --- 2. libpng ---
+add_subdirectory(external/libpng) # 会生成 libpng_static.a
+# libpng 自己就会寻找 zlib
+
+# --- 3. libimagequant ---
+file(GLOB LIQ_SRC
+     "external/libimagequant/*.c")
+add_library(imagequant STATIC ${LIQ_SRC})
+target_include_directories(imagequant PUBLIC
+        external/libimagequant)
+
+# --- 4. 你的 JNI Bridge ---
+add_library(pngquant_bridge SHARED
+    PngQuantBridge.cpp)
+
+target_include_directories(pngquant_bridge PRIVATE
+    external/libimagequant
+    external/libpng)
+
+target_link_libraries(pngquant_bridge
+    imagequant          # libimagequant 静态库
+    png_static          # libpng 静态库
+    ${ZLIB_LIB}         # zlib.so
+    log)                # __android_log_print