Get OpenCL to compile on OS X

However, the output of the OpenCL build is garbage....

.gitignore

@@ -64,3 +64,8 @@ training/wordlist2dawg
 *.cube.*
 *.tesseract_cube.*
 *.traineddata
+
+# OpenCL
+tesseract_opencl_profile_devices.dat
+kernel*.bin
+

api/Makefile.am

@@ -6,9 +6,9 @@ AM_CPPFLAGS += -DLOCALEDIR=\"$(localedir)\"\
     -I$(top_srcdir)/classify -I$(top_srcdir)/ccmain \
     -I$(top_srcdir)/wordrec -I$(top_srcdir)/cutil \
     -I$(top_srcdir)/opencl
-if USE_OPENCL
+
-AM_CPPFLAGS += -I$(OPENCL_HDR_PATH)
+AM_CPPFLAGS += $(OPENCL_CPPFLAGS)
-endif
+
 if VISIBILITY
 AM_CPPFLAGS += -fvisibility=hidden -fvisibility-inlines-hidden
 endif
@@ -78,9 +78,9 @@ endif
 
 tesseract_LDADD = libtesseract.la
 
-if USE_OPENCL
+
-tesseract_LDADD += $(OPENCL_LIB)
+tesseract_LDFLAGS = $(OPENCL_LDFLAGS)
-endif
+
 if OPENMP
 tesseract_LDADD += $(OPENMP_CFLAGS)
 endif

ccmain/Makefile.am

@@ -5,9 +5,9 @@ AM_CPPFLAGS += \
     -I$(top_srcdir)/classify  -I$(top_srcdir)/dict \
     -I$(top_srcdir)/wordrec -I$(top_srcdir)/cutil \
     -I$(top_srcdir)/textord -I$(top_srcdir)/opencl
-if USE_OPENCL
+
-AM_CPPFLAGS += -I$(OPENCL_HDR_PATH)
+AM_CPPFLAGS += $(OPENCL_CPPFLAGS)
-endif
+
 if VISIBILITY
 AM_CPPFLAGS += -DTESS_EXPORTS \
     -fvisibility=hidden -fvisibility-inlines-hidden

ccstruct/Makefile.am

@@ -2,9 +2,7 @@ AM_CPPFLAGS += \
     -I$(top_srcdir)/ccutil -I$(top_srcdir)/cutil \
     -I$(top_srcdir)/viewer \
     -I$(top_srcdir)/opencl
-if USE_OPENCL
+AM_CPPFLAGS += $(OPENCL_CPPFLAGS)
-AM_CPPFLAGS += -I$(OPENCL_HDR_PATH)
-endif
     
 if VISIBILITY
 AM_CPPFLAGS += -DTESS_EXPORTS \

configure.ac

@@ -99,7 +99,7 @@ case "${host_os}" in
         AM_CONDITIONAL(ADD_RT, true)
         ;;
     *darwin*)
-        OPENCL_LIBS="-framework OpenCL"
+        OPENCL_LIBS=""
         OPENCL_INC=""
         AM_CONDITIONAL(ADD_RT, false)
         ;;
@@ -212,6 +212,8 @@ m4_define([MY_CHECK_FRAMEWORK],
 )
 
 have_opencl_lib=false
+OPENCL_CPPFLAGS=''
+OPENCL_LDFLAGS=''
 case "${host_os}" in
   *darwin* | *-macos10*)
     echo "checking for OpenCL framework"
@@ -219,30 +221,32 @@ case "${host_os}" in
     if test $my_cv_framework_OpenCL = yes; then
        have_opencl_lib=true
     fi
-    AC_SUBST(OPENCL_OSX, [yes])
+    AC_SUBST([AM_CPPFLAGS], [-DUSE_OPENCL])
+    OPENCL_CPPFLAGS=""
+    OPENCL_LDFLAGS="-framework OpenCL"
     ;;
   *)
     # default
     AC_CHECK_LIB(OpenCL, clGetPlatformIDs, have_opencl_lib=true, have_opencl_lib=false)
-    AC_SUBST(OPENCL_OSX, [no])
+    if test "$enable_opencl" = "yes"; then
+        if !($have_opencl); then
+            AC_MSG_ERROR(Required OpenCL headers not found!)
+        fi
+        if !($have_opencl_lib); then
+            AC_MSG_ERROR(Required OpenCL library not found!)
+        fi
+        if !($have_tiff); then
+            AC_MSG_ERROR(Required TIFF headers not found! Try to install libtiff-dev?? package.)
+        fi
+        AC_SUBST([AM_CPPFLAGS], [-DUSE_OPENCL])
+        OPENCL_CPPFLAGS="-I${OPENCL_INC}"
+        OPENCL_LDFLAGS="-l${OPENCL_LIBS}"
+    fi
     ;;
 esac
-
-if test "$enable_opencl" = "yes"; then
-    if !($have_opencl); then
-        AC_MSG_ERROR(Required OpenCL headers not found!)
-    fi
-    if !($have_opencl_lib); then
-        AC_MSG_ERROR(Required OpenCL library not found!)
-    fi
-    if !($have_tiff); then
-        AC_MSG_ERROR(Required TIFF headers not found! Try to install libtiff-dev?? package.)
-    fi
-    AC_SUBST([AM_CPPFLAGS], [-DUSE_OPENCL])
-    AC_SUBST([OPENCL_HDR_PATH],[$OPENCL_INC])
-    AC_SUBST([OPENCL_LIB],[$OPENCL_LIBS])
-fi
 AM_CONDITIONAL([USE_OPENCL], [test "$enable_opencl" = "yes"])
+AC_SUBST(OPENCL_CPPFLAGS)
+AC_SUBST(OPENCL_LDFLAGS)
 
 # check whether to build tesseract with -fvisibility=hidden -fvisibility-inlines-hidden
 # http://gcc.gnu.org/wiki/Visibility

opencl/Makefile.am

@@ -1,11 +1,4 @@
-AM_CPPFLAGS += -I$(top_srcdir)/ccutil -I$(top_srcdir)/ccstruct -I$(top_srcdir)/ccmain 
+AM_CPPFLAGS += -I$(top_srcdir)/ccutil -I$(top_srcdir)/ccstruct -I$(top_srcdir)/ccmain $(OPENCL_CFLAGS)
-if USE_OPENCL
-	if OPENCL_OSX
-		AM_CFLAGS += -framework OpenCL
-	else
-		AM_CPPFLAGS += -I$(OPENCL_HDR_PATH)
-	endif
-endif
 noinst_HEADERS = \
     openclwrapper.h oclkernels.h opencl_device_selection.h 
 
@@ -13,17 +6,10 @@ if !USING_MULTIPLELIBS
 noinst_LTLIBRARIES = libtesseract_opencl.la
 else
 lib_LTLIBRARIES = libtesseract_opencl.la
-libtesseract_opencl_la_LDFLAGS = -version-info $(GENERIC_LIBRARY_VERSION)
+libtesseract_opencl_la_LDFLAGS = -version-info $(GENERIC_LIBRARY_VERSION) $(OPENCL_LDFLAGS)
 libtesseract_opencl_la_LIBADD = \
     ../ccutil/libtesseract_ccutil.la \
     ../viewer/libtesseract_viewer.la
-if USE_OPENCL
-	if OPENCL_OSX
-		libtesseract_opencl_la_LDFLAGS += -framework OpenCL
-	else
-		libtesseract_opencl_la_LDFLAGS += $(OPENCL_LIB)
-	endif
-endif
 endif
 
 libtesseract_opencl_la_SOURCES = \

textord/Makefile.am

@@ -5,9 +5,8 @@ AM_CPPFLAGS += \
     -I$(top_srcdir)/ccmain -I$(top_srcdir)/wordrec -I$(top_srcdir)/api \
     -I$(top_srcdir)/cutil -I$(top_srcdir)/classify -I$(top_srcdir)/dict \
     -I$(top_srcdir)/opencl
-if USE_OPENCL
+
-AM_CPPFLAGS += -I$(OPENCL_HDR_PATH)
+AM_CPPFLAGS += $(OPENCL_CPPFLAGS)
-endif
         
 if VISIBILITY
 AM_CPPFLAGS += -DTESS_EXPORTS \

training/Makefile.am

@@ -298,16 +298,14 @@ noinst_HEADERS += ../vs2010/port/strcasestr.h
 libtesseract_training_la_SOURCES += ../vs2010/port/strcasestr.cpp
 endif
 
-if USE_OPENCL
+ambiguous_words_LDFLAGS = $(OPENCL_LDFLAGS)
-ambiguous_words_LDADD += $(OPENCL_LIB)
+classifier_tester_LDFLAGS = $(OPENCL_LDFLAGS)
-classifier_tester_LDADD += $(OPENCL_LIB)
+cntraining_LDFLAGS = $(OPENCL_LDFLAGS)
-cntraining_LDADD += $(OPENCL_LIB)
+combine_tessdata_LDFLAGS = $(OPENCL_LDFLAGS)
-combine_tessdata_LDADD += $(OPENCL_LIB)
+dawg2wordlist_LDFLAGS = $(OPENCL_LDFLAGS)
-dawg2wordlist_LDADD += $(OPENCL_LIB)
+mftraining_LDFLAGS = $(OPENCL_LDFLAGS)
-mftraining_LDADD += $(OPENCL_LIB)
+set_unicharset_properties_LDFLAGS = $(OPENCL_LDFLAGS)
-set_unicharset_properties_LDADD += $(OPENCL_LIB)
+shapeclustering_LDFLAGS = $(OPENCL_LDFLAGS)
-shapeclustering_LDADD += $(OPENCL_LIB)
+text2image_LDFLAGS = $(OPENCL_LDFLAGS)
-text2image_LDADD += $(OPENCL_LIB)
+unicharset_extractor_LDFLAGS = $(OPENCL_LDFLAGS)
-unicharset_extractor_LDADD += $(OPENCL_LIB)
+wordlist2dawg_LDFLAGS = $(OPENCL_LDFLAGS)
-wordlist2dawg_LDADD += $(OPENCL_LIB)
-endif