dnn(test): fix failures of 32-bit builders

modules/dnn/test/test_onnx_importer.cpp

@@ -210,7 +210,11 @@ TEST_P(Test_ONNX_nets, RCNN_ILSVRC13)
     testONNXModels("rcnn_ilsvrc13", pb);
 }
 
+#ifdef OPENCV_32BIT_CONFIGURATION
+TEST_P(Test_ONNX_nets, DISABLED_VGG16)  // memory usage >2Gb
+#else
 TEST_P(Test_ONNX_nets, VGG16)
+#endif
 {
     double l1 = default_l1;
     double lInf = default_lInf;
@@ -225,7 +229,11 @@ TEST_P(Test_ONNX_nets, VGG16)
     testONNXModels("vgg16", pb, l1, lInf);
 }
 
+#ifdef OPENCV_32BIT_CONFIGURATION
+TEST_P(Test_ONNX_nets, DISABLED_VGG16_bn)  // memory usage >2Gb
+#else
 TEST_P(Test_ONNX_nets, VGG16_bn)
+#endif
 {
     double l1 = default_l1;
     double lInf = default_lInf;
@@ -288,7 +296,7 @@ TEST_P(Test_ONNX_nets, CNN_MNIST)
 {
     // output range: [-1952; 6574]
     const double l1 = (target == DNN_TARGET_OPENCL_FP16 || target == DNN_TARGET_MYRIAD) ? 3.82 : 4.3e-4;
-    const double lInf = (target == DNN_TARGET_OPENCL_FP16 || target == DNN_TARGET_MYRIAD) ? 13.5 : 1e-3;
+    const double lInf = (target == DNN_TARGET_OPENCL_FP16 || target == DNN_TARGET_MYRIAD) ? 13.5 : 2e-3;
 
     testONNXModels("cnn_mnist", pb, l1, lInf);
 }

modules/ts/include/opencv2/ts.hpp

@@ -37,6 +37,18 @@
 #include <algorithm>
 
 
+#ifndef OPENCV_32BIT_CONFIGURATION
+# if defined(INTPTR_MAX) && defined(INT32_MAX) && INTPTR_MAX == INT32_MAX
+#   define OPENCV_32BIT_CONFIGURATION 1
+# elif defined(_WIN32) && !defined(_WIN64)
+#   define OPENCV_32BIT_CONFIGURATION 1
+# endif
+#else
+# if OPENCV_32BIT_CONFIGURATION == 0
+#   undef OPENCV_32BIT_CONFIGURATION
+# endif
+#endif
+
 #ifdef WINRT
     #pragma warning(disable:4447) // Disable warning 'main' signature found without threading model
 #endif