COMPMID-556 - Fix examples

- Fixed data type issue in cl_sgemm
- Added support for NEON and OpenCL targets in graph examples. Before we
  could run only OpenCL target
- Add auto_init() in NEDepthwiseVectorToTensorKernel

Change-Id: I4410ce6f4992b2375b980634fe55f1083cf3c471
Reviewed-on: https://eu-gerrit-1.euhpc.arm.com/112850
Reviewed-by: Anthony Barbier <anthony.barbier@arm.com>
Tested-by: BSG Visual Compute Jenkins server to access repositories on http://mpd-gerrit.cambridge.arm.com <bsgcomp@arm.com>

1 files changed, 23 insertions, 20 deletions

diff --git a/examples/graph_vgg16.cpp b/examples/graph_vgg16.cpp
index 44dd1f63e4..cac38d30a7 100644
--- a/examples/graph_vgg16.cpp
+++ b/examples/graph_vgg16.cpp
@@ -35,7 +35,7 @@ using namespace arm_compute::graph_utils;
 /** Example demonstrating how to implement VGG16's network using the Compute Library's graph API
  *
  * @param[in] argc Number of arguments
- * @param[in] argv Arguments ( [optional] Path to the weights folder, [optional] image, [optional] labels )
+ * @param[in] argv Arguments ( [optional] Target (0 = NEON, 1 = OpenCL), [optional] Path to the weights folder, [optional] image, [optional] labels )
  */
 void main_graph_vgg16(int argc, const char **argv)
 {
@@ -47,43 +47,46 @@ void main_graph_vgg16(int argc, const char **argv)
     constexpr float mean_g = 116.779f; /* Mean value to subtract from green channel */
     constexpr float mean_b = 103.939f; /* Mean value to subtract from blue channel */
 
+    // Set target. 0 (NEON), 1 (OpenCL). By default it is NEON
+    TargetHint            target_hint      = set_target_hint(argc > 1 ? std::strtol(argv[1], nullptr, 10) : 0);
+    ConvolutionMethodHint convolution_hint = ConvolutionMethodHint::DIRECT;
+
     // Parse arguments
     if(argc < 2)
     {
         // Print help
-        std::cout << "Usage: " << argv[0] << " [path_to_data] [image] [labels]\n\n";
+        std::cout << "Usage: " << argv[0] << " [target] [path_to_data] [image] [labels]\n\n";
         std::cout << "No data folder provided: using random values\n\n";
     }
     else if(argc == 2)
     {
-        data_path = argv[1];
-        std::cout << "Usage: " << argv[0] << " " << argv[1] << " [image] [labels]\n\n";
-        std::cout << "No image provided: using random values\n\n";
+        std::cout << "Usage: " << argv[0] << " " << argv[1] << " [path_to_data] [image] [labels]\n\n";
+        std::cout << "No data folder provided: using random values\n\n";
     }
     else if(argc == 3)
     {
-        data_path = argv[1];
-        image     = argv[2];
-        std::cout << "Usage: " << argv[0] << " " << argv[1] << " " << argv[2] << " [labels]\n\n";
-        std::cout << "No text file with labels provided: skipping output accessor\n\n";
+        data_path = argv[2];
+        std::cout << "Usage: " << argv[0] << " " << argv[1] << " " << argv[2] << " [image] [labels]\n\n";
+        std::cout << "No image provided: using random values\n\n";
     }
-    else
+    else if(argc == 4)
     {
-        data_path = argv[1];
-        image     = argv[2];
-        label     = argv[3];
+        data_path = argv[2];
+        image     = argv[3];
+        std::cout << "Usage: " << argv[0] << " " << argv[1] << " " << argv[2] << " " << argv[3] << " [labels]\n\n";
+        std::cout << "No text file with labels provided: skipping output accessor\n\n";
     }
-
-    // Check if OpenCL is available and initialize the scheduler
-    TargetHint hint = TargetHint::NEON;
-    if(Graph::opencl_is_available())
+    else
     {
-        hint = TargetHint::OPENCL;
+        data_path = argv[2];
+        image     = argv[3];
+        label     = argv[4];
     }
 
     Graph graph;
 
-    graph << hint
+    graph << target_hint
+          << convolution_hint
           << Tensor(TensorInfo(TensorShape(224U, 224U, 3U, 1U), 1, DataType::F32),
                     get_input_accessor(image, mean_r, mean_g, mean_b))
           << ConvolutionMethodHint::DIRECT
@@ -211,7 +214,7 @@ void main_graph_vgg16(int argc, const char **argv)
 /** Main program for VGG16
  *
  * @param[in] argc Number of arguments
- * @param[in] argv Arguments ( [optional] Path to the weights folder, [optional] image, [optional] labels )
+ * @param[in] argv Arguments ( [optional] Target (0 = NEON, 1 = OpenCL), [optional] Path to the weights folder, [optional] image, [optional] labels )
  */
 int main(int argc, const char **argv)
 {