NDK编译FreeImage

2024-03-31 08:45:36

参考了以下2篇文章并作了一小点修改

http://recursify.com/blog/2013/05/25/building-freeimage-for-android

http://blog.sina.com.cn/s/blog_4119bd830100w7ov.html

1. 从官网下载FreeImage 3.15.4 的源码 http://freeimage.sourceforge.net/download.html

2. 新建安卓工程 Add Native Support

把FreeImage目录下的Source目录和 Makefile.srcs复制到jni根目录下

3. 修改Android.mk为

LOCAL_PATH := $(call my-dir)
include $(LOCAL_PATH)/Makefile.srcs
include $(CLEAR_VARS)
LOCAL_MODULE := FreeImage
LOCAL_C_INCLUDES := $(LOCAL_PATH)/Source \
$(LOCAL_PATH)/Source/Metadata \
$(LOCAL_PATH)/Source/FreeImageToolkit \
$(LOCAL_PATH)/Source/LibJPEG \
$(LOCAL_PATH)/Source/LibPNG \
$(LOCAL_PATH)/Source/LibTIFF4 \
$(LOCAL_PATH)/Source/ZLib \
$(LOCAL_PATH)/Source/LibOpenJPEG \
$(LOCAL_PATH)/Source/OpenEXR \
$(LOCAL_PATH)/Source/OpenEXR/Half \
$(LOCAL_PATH)/Source/OpenEXR/Iex \
$(LOCAL_PATH)/Source/OpenEXR/IlmImf \
$(LOCAL_PATH)/Source/OpenEXR/IlmThread \
$(LOCAL_PATH)/Source/OpenEXR/Imath \
$(LOCAL_PATH)/Source/LibRawLite \
$(LOCAL_PATH)/Source/LibRawLite/dcraw \
$(LOCAL_PATH)/Source/LibRawLite/internal \
$(LOCAL_PATH)/Source/LibRawLite/libraw \
$(LOCAL_PATH)/Source/LibRawLite/src
LOCAL_SRC_FILES := $(SRCS)
LOCAL_CPP_FEATURES := rtti exceptions
#LOCAL_CFLAGS := -O3 -fPIC
include $(BUILD_SHARED_LIBRARY)

4. 修改Application.mk为全平台编译

APP_STL := gnustl_static
APP_ABI := all
APP_OPTIM := release

或者只是ARM的

NDK_TOOLCHAIN_VERSION:=4.8
APP_STL := gnustl_static
APP_CPPFLAGS := -std=c++11
APP_ABI := armeabi

5. 找到LibTIFF4/tif_config.h 注释掉

//#define HAVE_SEARCH_H 1

6. 由于编译会找不到LibRawLite\internal\dcraw_common.cpp最上面添加swab函数

#include <stdint.h>
#include <asm/byteorder.h>
static void swab(const void *from, void *to, ssize_t n)
{
ssize_t i;
if (n < 0)
{
return;
}
for (i = 0; i < (n / 2) * 2; i += 2)
{
*((uint16_t*)to + i) = __arch__swab16(*((uint16_t*)from + i));
}
}

OpenEXR有点兼容性的小BUG

解决办法是找到ImfHuf.cpp 修改下头文件包含的顺序

#include <string.h>
#include <cstring>
#include <algorithm>
#include <ImfHuf.h>
#include <ImfInt64.h>
#include <ImfAutoArray.h>
#include "Iex.h"
#include <assert.h>

8. 编译

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