fixed warnings under windows

modules/gpu/src/cascadeclassifier.cpp

@@ -623,7 +623,7 @@ private:
         }
 
         // copy data structures on gpu
-        stage_mat.upload(cv::Mat(1, stages.size() * sizeof(Stage), CV_8UC1, (uchar*)&(stages[0]) ));
+        stage_mat.upload(cv::Mat(1, (int) (stages.size() * sizeof(Stage)), CV_8UC1, (uchar*)&(stages[0]) ));
         trees_mat.upload(cv::Mat(cl_trees).reshape(1,1));
         nodes_mat.upload(cv::Mat(cl_nodes).reshape(1,1));
         leaves_mat.upload(cv::Mat(cl_leaves).reshape(1,1));

modules/gpu/src/element_operations.cpp

@@ -2086,7 +2086,7 @@ void cv::gpu::bitwise_not(const GpuMat& src, GpuMat& dst, const GpuMat& mask, St
 
     cudaStream_t stream = StreamAccessor::getStream(s);
 
-    const int bcols = src.cols * src.elemSize();
+    const int bcols = (int) (src.cols * src.elemSize());
 
     if ((bcols & 3) == 0)
     {
@@ -2139,7 +2139,7 @@ void cv::gpu::bitwise_and(const GpuMat& src1, const GpuMat& src2, GpuMat& dst, c
 
     cudaStream_t stream = StreamAccessor::getStream(s);
 
-    const int bcols = src1.cols * src1.elemSize();
+    const int bcols = (int) (src1.cols * src1.elemSize());
 
     if ((bcols & 3) == 0)
     {
@@ -2186,7 +2186,7 @@ void cv::gpu::bitwise_or(const GpuMat& src1, const GpuMat& src2, GpuMat& dst, co
 
     cudaStream_t stream = StreamAccessor::getStream(s);
 
-    const int bcols = src1.cols * src1.elemSize();
+    const int bcols = (int) (src1.cols * src1.elemSize());
 
     if ((bcols & 3) == 0)
     {
@@ -2233,7 +2233,7 @@ void cv::gpu::bitwise_xor(const GpuMat& src1, const GpuMat& src2, GpuMat& dst, c
 
     cudaStream_t stream = StreamAccessor::getStream(s);
 
-    const int bcols = src1.cols * src1.elemSize();
+    const int bcols = (int) (src1.cols * src1.elemSize());
 
     if ((bcols & 3) == 0)
     {

modules/gpu/src/fgd_bgfg.cpp

@@ -523,15 +523,15 @@ namespace
 
         size_t total = all_contours.size();
 
-        _contours.create(total, 1, 0, -1, true);
+        _contours.create((int) total, 1, 0, -1, true);
 
         cv::SeqIterator<CvSeq*> it = all_contours.begin();
         for (size_t i = 0; i < total; ++i, ++it)
         {
             CvSeq* c = *it;
             ((CvContour*)c)->color = (int)i;
-            _contours.create((int)c->total, 1, CV_32SC2, i, true);
-            cv::Mat ci = _contours.getMat(i);
+            _contours.create((int)c->total, 1, CV_32SC2, (int)i, true);
+            cv::Mat ci = _contours.getMat((int)i);
             CV_Assert( ci.isContinuous() );
             cvCvtSeqToArray(c, ci.data);
         }

modules/gpu/src/hough.cpp

@@ -579,7 +579,7 @@ namespace
         const func_t func = funcs[dx.depth()];
         CV_Assert(func != 0);
 
-        edgePointList.cols = edgePointList.step / sizeof(int);
+        edgePointList.cols = (int) (edgePointList.step / sizeof(int));
         ensureSizeIsEnough(2, edges.size().area(), CV_32SC1, edgePointList);
 
         edgePointList.cols = func(edges, dx, dy, edgePointList.ptr<unsigned int>(0), edgePointList.ptr<float>(1));

modules/gpu/src/softcascade.cpp

@@ -235,13 +235,13 @@ struct cv::gpu::SCascade::Fields
             ++octIndex;
         }
 
-        cv::Mat hoctaves(1, voctaves.size() * sizeof(Octave), CV_8UC1, (uchar*)&(voctaves[0]));
+        cv::Mat hoctaves(1, (int) (voctaves.size() * sizeof(Octave)), CV_8UC1, (uchar*)&(voctaves[0]));
         CV_Assert(!hoctaves.empty());
 
         cv::Mat hstages(cv::Mat(vstages).reshape(1,1));
         CV_Assert(!hstages.empty());
 
-        cv::Mat hnodes(1, vnodes.size() * sizeof(Node), CV_8UC1, (uchar*)&(vnodes[0]) );
+        cv::Mat hnodes(1, (int) (vnodes.size() * sizeof(Node)), CV_8UC1, (uchar*)&(vnodes[0]) );
         CV_Assert(!hnodes.empty());
 
         cv::Mat hleaves(cv::Mat(vleaves).reshape(1,1));
@@ -296,7 +296,7 @@ struct cv::gpu::SCascade::Fields
             scale = ::std::min(maxScale, ::expf(::log(scale) + logFactor));
         }
 
-        cv::Mat hlevels = cv::Mat(1, vlevels.size() * sizeof(Level), CV_8UC1, (uchar*)&(vlevels[0]) );
+        cv::Mat hlevels = cv::Mat(1, (int) (vlevels.size() * sizeof(Level)), CV_8UC1, (uchar*)&(vlevels[0]) );
         CV_Assert(!hlevels.empty());
         levels.upload(hlevels);
         downscales = dcs;

modules/gpu/test/test_hough.cpp

@@ -89,7 +89,7 @@ TEST_P(HoughLines, Accuracy)
         const bool useRoi = GET_PARAM(2);
 
         const float rho = 1.0f;
-        const float theta = 1.5f * CV_PI / 180.0f;
+        const float theta = (float) (1.5 * CV_PI / 180.0);
         const int threshold = 100;
 
         cv::Mat src(size, CV_8UC1);

modules/gpu/test/test_labeling.cpp

@@ -82,7 +82,7 @@ namespace {
             int cc = -1;
 
             int* dist_labels = (int*)labels.data;
-            int pitch = labels.step1();
+            int pitch = (int) labels.step1();
 
             unsigned char* source = (unsigned char*)image.data;
             int width = image.cols;

modules/gpu/test/test_video.cpp

@@ -606,8 +606,8 @@ static void FastOpticalFlowBM_gold(const cv::Mat_<uchar>& I0, const cv::Mat_<uch
                 }
             }
 
-            velx(y, x) = bestDx;
-            vely(y, x) = bestDy;
+            velx(y, x) = (float) bestDx;
+            vely(y, x) = (float) bestDy;
         }
     }
 }

samples/gpu/houghlines.cpp

@@ -38,7 +38,7 @@ int main(int argc, const char* argv[])
 
     vector<Vec4i> lines_cpu;
     {
-        const double start = getTickCount();
+        const int64 start = getTickCount();
 
         HoughLinesP(mask, lines_cpu, 1, CV_PI / 180, 50, 60, 5);
 
@@ -57,9 +57,9 @@ int main(int argc, const char* argv[])
     GpuMat d_lines;
     HoughLinesBuf d_buf;
     {
-        const double start = getTickCount();
+        const int64 start = getTickCount();
 
-        gpu::HoughLinesP(d_src, d_lines, d_buf, 1, CV_PI / 180, 50, 5);
+        gpu::HoughLinesP(d_src, d_lines, d_buf, 1.0f, (float) (CV_PI / 180.0f), 50, 5);
 
         const double timeSec = (getTickCount() - start) / getTickFrequency();
         cout << "GPU Time : " << timeSec * 1000 << " ms" << endl;

samples/gpu/optical_flow.cpp

@@ -57,7 +57,7 @@ static Vec3b computeColor(float fx, float fy)
     }
 
     const float rad = sqrt(fx * fx + fy * fy);
-    const float a = atan2(-fy, -fx) / CV_PI;
+    const float a = atan2(-fy, -fx) / (float) CV_PI;
 
     const float fk = (a + 1.0f) / 2.0f * (NCOLS - 1);
     const int k0 = static_cast<int>(fk);
@@ -68,8 +68,8 @@ static Vec3b computeColor(float fx, float fy)
 
     for (int b = 0; b < 3; b++)
     {
-        const float col0 = colorWheel[k0][b] / 255.0;
-        const float col1 = colorWheel[k1][b] / 255.0;
+        const float col0 = colorWheel[k0][b] / 255.0f;
+        const float col1 = colorWheel[k1][b] / 255.0f;
 
         float col = (1 - f) * col0 + f * col1;
 
@@ -78,7 +78,7 @@ static Vec3b computeColor(float fx, float fy)
         else
             col *= .75; // out of range
 
-        pix[2 - b] = static_cast<int>(255.0 * col);
+        pix[2 - b] = static_cast<uchar>(255.0 * col);
     }
 
     return pix;
@@ -166,7 +166,7 @@ int main(int argc, const char* argv[])
     GpuMat d_flowx(frame0.size(), CV_32FC1);
     GpuMat d_flowy(frame0.size(), CV_32FC1);
 
-    BroxOpticalFlow brox(0.197, 50.0, 0.8, 10, 77, 10);
+    BroxOpticalFlow brox(0.197f, 50.0f, 0.8f, 10, 77, 10);
     PyrLKOpticalFlow lk; lk.winSize = Size(7, 7);
     FarnebackOpticalFlow farn;
     OpticalFlowDual_TVL1_GPU tvl1;
@@ -179,7 +179,7 @@ int main(int argc, const char* argv[])
         d_frame0.convertTo(d_frame0f, CV_32F, 1.0 / 255.0);
         d_frame1.convertTo(d_frame1f, CV_32F, 1.0 / 255.0);
 
-        const double start = getTickCount();
+        const int64 start = getTickCount();
 
         brox(d_frame0f, d_frame1f, d_flowx, d_flowy);
 
@@ -190,7 +190,7 @@ int main(int argc, const char* argv[])
     }
 
     {
-        const double start = getTickCount();
+        const int64 start = getTickCount();
 
         lk.dense(d_frame0, d_frame1, d_flowx, d_flowy);
 
@@ -201,7 +201,7 @@ int main(int argc, const char* argv[])
     }
 
     {
-        const double start = getTickCount();
+        const int64 start = getTickCount();
 
         farn(d_frame0, d_frame1, d_flowx, d_flowy);
 
@@ -212,7 +212,7 @@ int main(int argc, const char* argv[])
     }
 
     {
-        const double start = getTickCount();
+        const int64 start = getTickCount();
 
         tvl1(d_frame0, d_frame1, d_flowx, d_flowy);
 
@@ -223,7 +223,7 @@ int main(int argc, const char* argv[])
     }
 
     {
-        const double start = getTickCount();
+        const int64 start = getTickCount();
 
         GpuMat buf;
         calcOpticalFlowBM(d_frame0, d_frame1, Size(7, 7), Size(1, 1), Size(21, 21), false, d_flowx, d_flowy, buf);
@@ -235,7 +235,7 @@ int main(int argc, const char* argv[])
     }
 
     {
-        const double start = getTickCount();
+        const int64 start = getTickCount();
 
         fastBM(d_frame0, d_frame1, d_flowx, d_flowy);