dnn: avoid conflicts with original caffe.proto

rename caffe.proto => opencv-caffe.proto

cmake/OpenCVFindLibProtobuf.cmake

@@ -7,7 +7,7 @@ OCV_OPTION(BUILD_PROTOBUF "Force to build libprotobuf from sources" ON)
 OCV_OPTION(PROTOBUF_UPDATE_FILES "Force to rebuild .proto files" OFF)
 
 if(PROTOBUF_UPDATE_FILES)
-  if(NOT DEFINED Protobuf_PROTOC_EXECUTABLE)
+  if(NOT COMMAND PROTOBUF_GENERATE_CPP)
     find_package(Protobuf QUIET)
   endif()
   if(DEFINED Protobuf_PROTOC_EXECUTABLE AND EXISTS ${Protobuf_PROTOC_EXECUTABLE})
@@ -21,7 +21,7 @@ if(NOT BUILD_PROTOBUF AND NOT (DEFINED Protobuf_INCLUDE_DIRS AND DEFINED Protobu
   find_package(Protobuf QUIET)
 endif()
 
-if(Protobuf_FOUND)
+if(Protobuf_FOUND AND NOT BUILD_PROTOBUF)
   # nothing
 else()
   set(Protobuf_LIBRARIES libprotobuf)

modules/dnn/CMakeLists.txt

@@ -56,14 +56,15 @@ ocv_warnings_disable(CMAKE_CXX_FLAGS
 )
 
 if(PROTOBUF_UPDATE_FILES)
-  file(GLOB proto_files src/tensorflow/*.proto)
-  list(APPEND proto_files src/caffe/caffe.proto)
+  file(GLOB proto_files ${CMAKE_CURRENT_SOURCE_DIR}/src/tensorflow/*.proto)
+  list(APPEND proto_files ${CMAKE_CURRENT_SOURCE_DIR}/src/caffe/opencv-caffe.proto)
+  set(PROTOBUF_GENERATE_CPP_APPEND_PATH ON) # required for tensorflow
   PROTOBUF_GENERATE_CPP(Protobuf_HDRS Protobuf_SRCS ${proto_files})
 else()
   file(GLOB fw_srcs ${CMAKE_CURRENT_SOURCE_DIR}/misc/tensorflow/*.cc)
   file(GLOB fw_hdrs ${CMAKE_CURRENT_SOURCE_DIR}/misc/tensorflow/*.h)
-  list(APPEND fw_srcs ${CMAKE_CURRENT_SOURCE_DIR}/misc/caffe/caffe.pb.cc)
-  list(APPEND fw_hdrs ${CMAKE_CURRENT_SOURCE_DIR}/misc/caffe/caffe.pb.h)
+  list(APPEND fw_srcs ${CMAKE_CURRENT_SOURCE_DIR}/misc/caffe/opencv-caffe.pb.cc)
+  list(APPEND fw_hdrs ${CMAKE_CURRENT_SOURCE_DIR}/misc/caffe/opencv-caffe.pb.h)
   list(APPEND Protobuf_SRCS ${fw_srcs})
   list(APPEND Protobuf_HDRS ${fw_hdrs})
   list(APPEND Protobuf_INCLUDE_DIRS ${CMAKE_CURRENT_SOURCE_DIR}/misc/caffe)

modules/dnn/src/caffe/caffe_importer.cpp

@@ -42,8 +42,6 @@
 #include "../precomp.hpp"
 
 #ifdef HAVE_PROTOBUF
-#include "caffe.pb.h"
-
 #include <iostream>
 #include <fstream>
 #include <sstream>

modules/dnn/src/caffe/caffe_io.cpp

@@ -99,7 +99,6 @@
 #include <fstream>
 #include <vector>
 
-#include "caffe.pb.h"
 #include "caffe_io.hpp"
 #include "glog_emulator.hpp"
 

modules/dnn/src/caffe/caffe_io.hpp

@@ -91,7 +91,7 @@
 #define __OPENCV_DNN_CAFFE_IO_HPP__
 #ifdef HAVE_PROTOBUF
 
-#include "caffe.pb.h"
+#include "opencv-caffe.pb.h"
 
 namespace cv {
 namespace dnn {