[Lcms-user] Using lcms in Android NDK

[Devon Y. <9to...@gm...>]

Hi guys.. I have been trying to use just a several lines of codes from lcms
in Android NDK but still haven't completed it..

Here's what I did:

1. copy whole library folder under jni folder in java project.
(ex. {project-dir}/jni/lcms2-2.2 )

2. add compile/build info in android.mk

LCMS_SRC_PATH := lcms2-2.2/
LOCAL_C_INCLUDES  :=  \
${LCMS_SRC_PATH}include/ \
LOCAL_SRC_FILES += ${LCMS_SRC_PATH}src/cmscam02.c
LOCAL_SRC_FILES += ${LCMS_SRC_PATH}src/cmserr.c
LOCAL_SRC_FILES += ${LCMS_SRC_PATH}src/cmstypes.c
LOCAL_SRC_FILES += ${LCMS_SRC_PATH}src/cmsmd5.c
LOCAL_SRC_FILES += ${LCMS_SRC_PATH}src/cmswtpnt.c
LOCAL_SRC_FILES += ${LCMS_SRC_PATH}src/cmsgmt.c
LOCAL_SRC_FILES += ${LCMS_SRC_PATH}src/cmspcs.c
LOCAL_SRC_FILES += ${LCMS_SRC_PATH}src/cmsopt.c
LOCAL_SRC_FILES += ${LCMS_SRC_PATH}src/cmscnvrt.c
LOCAL_SRC_FILES += ${LCMS_SRC_PATH}src/cmsps2.c
LOCAL_SRC_FILES += ${LCMS_SRC_PATH}src/cmssamp.c
LOCAL_SRC_FILES += ${LCMS_SRC_PATH}src/cmsplugin.c
LOCAL_SRC_FILES += ${LCMS_SRC_PATH}src/cmsmtrx.c
LOCAL_SRC_FILES += ${LCMS_SRC_PATH}src/cmspack.c
LOCAL_SRC_FILES += ${LCMS_SRC_PATH}src/cmsio0.c
LOCAL_SRC_FILES += ${LCMS_SRC_PATH}src/cmsgamma.c
LOCAL_SRC_FILES += ${LCMS_SRC_PATH}src/cmscgats.c
LOCAL_SRC_FILES += ${LCMS_SRC_PATH}src/cmsxform.c
LOCAL_SRC_FILES += ${LCMS_SRC_PATH}src/cmsnamed.c
LOCAL_SRC_FILES += ${LCMS_SRC_PATH}src/cmssm.c
LOCAL_SRC_FILES += ${LCMS_SRC_PATH}src/cmsio1.c
LOCAL_SRC_FILES += ${LCMS_SRC_PATH}src/cmsintrp.c
LOCAL_SRC_FILES += ${LCMS_SRC_PATH}src/cmslut.c
LOCAL_SRC_FILES += ${LCMS_SRC_PATH}src/cmsvirt.c

LOCAL_LDLIBS +=  -llog -ldl -L../lib -lGLESv1_CM

include $(BUILD_SHARED_LIBRARY)

3. in a cpp file, I added lcms source code
#include "lcms2.h"

        string icc1 = RESOURCE_DIRECTORY +
"/storage/emulated/extSdCard/ICC/CP01.icc";
string icc2 = RESOURCE_DIRECTORY +
"/storage/emulated/extSdCard/ICC/sRGB.icm";
int width = dst->size[1];
int height = dst->size[0];
if(!cmsLoaded)
{
hInProfile = cmsOpenProfileFromFile(icc1.c_str(), "r");
hOutProfile = cmsOpenProfileFromFile(icc2.c_str(), "r");
cmsLoaded = true;
}
hTransform = cmsCreateTransform(hInProfile,
TYPE_BGR_8,
hOutProfile,
TYPE_BGR_8,
INTENT_PERCEPTUAL, 0);
if(hInProfile && hOutProfile)
{
cmsDoTransform(hTransform, dst->data,
dst->data,
width*height);
}


The problem is hInProfile  and  hOutProfile are getting null all the time.
Can any1 tell me what the problem is? Or can you give me a link of a nice
tutorial of using lcms in Android NDK?