Merge pull request #555 from richmattes/opencv_cpp_api

Reviewed-by: Benn Snyder <benn.snyder@gmail.com>

Author: piedar

src/usb_libusb10.c

@@ -465,6 +465,7 @@ FN_INTERNAL int fnusb_open_subdevices(freenect_device *dev, int index)
 }
 
 if (res < 0 || camera == NULL) {
+res = -1;
 goto failure;
 }
 

wrappers/c_sync/libfreenect_sync.c

@@ -249,7 +249,7 @@ static int change_depth_format(sync_kinect_t *kinect, freenect_resolution res, f
 static sync_kinect_t *alloc_kinect(int index)
 {
 sync_kinect_t *kinect = (sync_kinect_t*)malloc(sizeof(sync_kinect_t));
-if (freenect_open_device(ctx, &kinect->dev, index)) {
+if (freenect_open_device(ctx, &kinect->dev, index) < 0) {
 free(kinect);
 return NULL;
 }

wrappers/opencv/CMakeLists.txt

@@ -2,7 +2,7 @@
 # OpenCV Interface
 ######################################################################################
 find_package(OpenCV REQUIRED)
-add_library (freenect_cv SHARED libfreenect_cv.c)
+add_library (freenect_cv SHARED libfreenect_cv.cpp)
 set_target_properties (freenect_cv PROPERTIES
  VERSION ${PROJECT_VER}
  SOVERSION ${PROJECT_APIVER})
@@ -16,7 +16,7 @@ install (TARGETS freenect_cv
 install (FILES "libfreenect_cv.h"
  DESTINATION ${PROJECT_INCLUDE_INSTALL_DIR})
 
-add_executable(freenect-cvdemo cvdemo.c)
+add_executable(freenect-cvdemo cvdemo.cpp)
 target_link_libraries(freenect-cvdemo freenect freenect_sync freenect_cv ${OpenCV_LIBS})
 install (TARGETS freenect-cvdemo
  DESTINATION bin)

wrappers/opencv/cvdemo.c renamed to wrappers/opencv/cvdemo.cpp

@@ -1,11 +1,11 @@
 #pragma once
 
+#include <opencv/cv.h>
+
 #ifdef __cplusplus
 extern "C" {
 #endif
 
-#include <opencv/cv.h>
-
 IplImage *freenect_sync_get_depth_cv(int index);
 IplImage *freenect_sync_get_rgb_cv(int index);