Build libsquish and astc-encoder for android

android/Android.mk

@@ -93,6 +93,20 @@ include $(PREBUILT_STATIC_LIBRARY)
 include $(CLEAR_VARS)
 
 
+# libsquish
+LOCAL_MODULE       := libsquish
+LOCAL_SRC_FILES    := deps-$(TARGET_ARCH_ABI)/libsquish/libsquish.a
+include $(PREBUILT_STATIC_LIBRARY)
+include $(CLEAR_VARS)
+
+
+# astc-encoder
+LOCAL_MODULE       := libastcenc
+LOCAL_SRC_FILES    := deps-$(TARGET_ARCH_ABI)/astc-encoder/Source/libastcenc.a
+include $(PREBUILT_STATIC_LIBRARY)
+include $(CLEAR_VARS)
+
+
 # ifaddrs
 LOCAL_MODULE    := ifaddrs
 LOCAL_PATH      := .
@@ -168,15 +182,18 @@ LOCAL_PATH         := .
 LOCAL_CPP_FEATURES += rtti exceptions
 LOCAL_SRC_FILES    := $(wildcard ../lib/graphics_engine/src/*.c) \
                       $(wildcard ../lib/graphics_engine/src/*.cpp)
-LOCAL_CFLAGS       := -I../lib/graphics_engine/include \
+LOCAL_CFLAGS       := -DENABLE_LIBASTCENC              \
+                      -I../lib/graphics_engine/include \
                       -I../lib/graphics_utils          \
                       -I../lib/sdl2/include/           \
                       -I../lib/bullet/src/             \
-                      -I../lib/irrlicht/include/
+                      -I../lib/irrlicht/include/       \
+                      -I../lib/libsquish               \
+                      -Ideps-$(TARGET_ARCH_ABI)/astc-encoder/Source
 ifeq ($(TARGET_ARCH_ABI), armeabi-v7a)
 LOCAL_ARM_NEON     := false
 endif
-LOCAL_STATIC_LIBRARIES := shaderc
+LOCAL_STATIC_LIBRARIES := shaderc libsquish libastcenc
 include $(BUILD_STATIC_LIBRARY)
 $(call import-module, third_party/shaderc)
 include $(CLEAR_VARS)

android/make_deps.sh

@@ -283,6 +283,64 @@ build_deps()
         check_error
         touch "$DIRNAME/deps-$ARCH_OPTION/libvorbis.stamp"
     fi
+
+    # Libsquish
+    if [ ! -f "$DIRNAME/deps-$ARCH_OPTION/libsquish.stamp" ]; then
+        echo "Compiling $ARCH_OPTION libsquish"
+        mkdir -p "$DIRNAME/deps-$ARCH_OPTION/libsquish"
+        cp -a -f "$DIRNAME/../lib/libsquish/"* "$DIRNAME/deps-$ARCH_OPTION/libsquish"
+    
+        cd "$DIRNAME/deps-$ARCH_OPTION/libsquish"
+        if [[ "$ARCH_OPTION" = "x86" || "$ARCH_OPTION" = "x86_64" ]]; then
+            cmake . -DCMAKE_TOOLCHAIN_FILE=../../../cmake/Toolchain-android.cmake \
+                    -DHOST=$HOST -DARCH=$ARCH                                     \
+                    -DCMAKE_C_FLAGS="-fpic -O3 -g -DSQUISH_USE_SSE=2 -msse2"      \
+                    -DCMAKE_CXX_FLAGS="-fpic -O3 -g -DSQUISH_USE_SSE=2 -msse2"
+        else
+            cmake . -DCMAKE_TOOLCHAIN_FILE=../../../cmake/Toolchain-android.cmake \
+                    -DHOST=$HOST -DARCH=$ARCH -DCMAKE_C_FLAGS="-fpic -O3 -g"      \
+                    -DCMAKE_CXX_FLAGS="-fpic -O3 -g"
+        fi
+        make -j $(($(nproc) + 1)) VERBOSE=1
+        check_error
+        touch "$DIRNAME/deps-$ARCH_OPTION/libsquish.stamp"
+    fi
+
+    # ASTC-encoder
+    if [ ! -f "$DIRNAME/deps-$ARCH_OPTION/astc-encoder.stamp" ]; then
+        echo "Compiling $ARCH_OPTION astc-encoder"
+        mkdir -p "$DIRNAME/deps-$ARCH_OPTION/astc-encoder"
+        cp -a -f "$DIRNAME/../lib/astc-encoder/"* "$DIRNAME/deps-$ARCH_OPTION/astc-encoder"
+
+        cd "$DIRNAME/deps-$ARCH_OPTION/astc-encoder"
+        sed -i '/-Werror/d' Source/cmake_core.cmake
+        sed -i 's|${ASTC_TARGET}-static|astcenc|g' Source/cmake_core.cmake
+        if [ "$ARCH_OPTION" = "armeabi-v7a" ]; then
+            cmake . -DCMAKE_TOOLCHAIN_FILE=../../../cmake/Toolchain-android.cmake \
+                    -DHOST=$HOST -DARCH=$ARCH -DSTK_ARM_NEON=ON                   \
+                    -DCMAKE_C_FLAGS="-fpic -O3 -g -mfpu=neon"                     \
+                    -DCMAKE_CXX_FLAGS="-fpic -O3 -g -mfpu=neon"                   \
+                    -DNO_INVARIANCE=ON -DCLI=OFF
+        elif [ "$ARCH_OPTION" = "arm64-v8a" ]; then
+            cmake . -DCMAKE_TOOLCHAIN_FILE=../../../cmake/Toolchain-android.cmake \
+                    -DHOST=$HOST -DARCH=$ARCH -DCMAKE_C_FLAGS="-fpic -O3 -g"      \
+                    -DCMAKE_CXX_FLAGS="-fpic -O3 -g"                              \
+                    -DISA_NEON=ON -DNO_INVARIANCE=ON -DCLI=OFF
+        elif [ "$ARCH_OPTION" = "x86" ]; then
+            cmake . -DCMAKE_TOOLCHAIN_FILE=../../../cmake/Toolchain-android.cmake \
+                    -DHOST=$HOST -DARCH=$ARCH -DCMAKE_C_FLAGS="-fpic -O3 -g"      \
+                    -DCMAKE_CXX_FLAGS="-fpic -O3 -g"                              \
+                    -DISA_SSE2=ON -DNO_INVARIANCE=ON -DCLI=OFF
+        else
+            cmake . -DCMAKE_TOOLCHAIN_FILE=../../../cmake/Toolchain-android.cmake \
+                    -DHOST=$HOST -DARCH=$ARCH -DCMAKE_C_FLAGS="-fpic -O3 -g"      \
+                    -DCMAKE_CXX_FLAGS="-fpic -O3 -g"                              \
+                    -DISA_SSE41=ON -DNO_INVARIANCE=ON -DCLI=OFF
+        fi
+        make -j $(($(nproc) + 1))
+        check_error
+        touch "$DIRNAME/deps-$ARCH_OPTION/astc-encoder.stamp"
+    fi
 }
 
 if [ -z "$COMPILE_ARCH" ] || [ "$COMPILE_ARCH" = "all" ]; then

cmake/Toolchain-android.cmake

@@ -16,7 +16,7 @@ set(CMAKE_SYSTEM_PROCESSOR ${ARCH})
 
 # Starting NDK21 it enables NEON by default on 32-bit ARM target
 # Disable it to support more devices
-if("${ARCH}" STREQUAL "arm")
+if("${ARCH}" STREQUAL "arm" AND NOT STK_ARM_NEON)
     set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -mfpu=vfpv3-d16")
     set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -mfpu=vfpv3-d16")
 endif()