Update opencl c++ header wrapper inclusion

WORKSPACE

@@ -5,71 +5,79 @@ workspace(name = "mace")
 # This statement defines the @com_google_protobuf repo.
 http_archive(
     name = "com_google_protobuf",
-    urls = ["http://v9.git.n.xiaomi.com/deep-computing/protobuf/repository/archive.zip?ref=c7457ef65a7a8584b1e3bd396c401ccf8e275ffa"],
-    strip_prefix = "protobuf-c7457ef65a7a8584b1e3bd396c401ccf8e275ffa-c7457ef65a7a8584b1e3bd396c401ccf8e275ffa",
     sha256 = "0a54cae83b77f4b54b7db4eaebadd81fbe91655e84a1ef3f6d29116d75f3a45f",
+    strip_prefix = "protobuf-c7457ef65a7a8584b1e3bd396c401ccf8e275ffa-c7457ef65a7a8584b1e3bd396c401ccf8e275ffa",
+    urls = ["http://v9.git.n.xiaomi.com/deep-computing/protobuf/repository/archive.zip?ref=c7457ef65a7a8584b1e3bd396c401ccf8e275ffa"],
 )
 
 # cc_proto_library rules implicitly depend on @com_google_protobuf_cc//:cc_toolchain,
 # which is the C++ proto runtime (base classes and common utilities).
 http_archive(
     name = "com_google_protobuf_cc",
-    urls = ["http://v9.git.n.xiaomi.com/deep-computing/protobuf/repository/archive.zip?ref=c7457ef65a7a8584b1e3bd396c401ccf8e275ffa"],
-    strip_prefix = "protobuf-c7457ef65a7a8584b1e3bd396c401ccf8e275ffa-c7457ef65a7a8584b1e3bd396c401ccf8e275ffa",
     sha256 = "0a54cae83b77f4b54b7db4eaebadd81fbe91655e84a1ef3f6d29116d75f3a45f",
+    strip_prefix = "protobuf-c7457ef65a7a8584b1e3bd396c401ccf8e275ffa-c7457ef65a7a8584b1e3bd396c401ccf8e275ffa",
+    urls = ["http://v9.git.n.xiaomi.com/deep-computing/protobuf/repository/archive.zip?ref=c7457ef65a7a8584b1e3bd396c401ccf8e275ffa"],
 )
 
 new_http_archive(
     name = "gtest",
-    url = "http://v9.git.n.xiaomi.com/deep-computing/googletest/repository/archive.zip?ref=release-1.8.0",
-    strip_prefix = "googletest-release-1.8.0-ec44c6c1675c25b9827aacd08c02433cccde7780",
-    sha256 = "a0b43a0a43cda0cc401a46d75519d961ef27f6674d4126366e47d9c946c4bbcd",
     build_file = "mace/third_party/gtest.BUILD",
+    sha256 = "a0b43a0a43cda0cc401a46d75519d961ef27f6674d4126366e47d9c946c4bbcd",
+    strip_prefix = "googletest-release-1.8.0-ec44c6c1675c25b9827aacd08c02433cccde7780",
+    url = "http://v9.git.n.xiaomi.com/deep-computing/googletest/repository/archive.zip?ref=release-1.8.0",
 )
 
 new_http_archive(
     name = "six_archive",
+    build_file = "mace/third_party/six.BUILD",
+    sha256 = "105f8d68616f8248e24bf0e9372ef04d3cc10104f1980f54d57b2ce73a5ad56a",
+    strip_prefix = "six-1.10.0",
     urls = [
         "http://mirror.bazel.build/pypi.python.org/packages/source/s/six/six-1.10.0.tar.gz",
         "https://pypi.python.org/packages/source/s/six/six-1.10.0.tar.gz",
     ],
-    sha256 = "105f8d68616f8248e24bf0e9372ef04d3cc10104f1980f54d57b2ce73a5ad56a",
-    strip_prefix = "six-1.10.0",
-    build_file = "mace/third_party/six.BUILD",
 )
+
 bind(
-      name = "six",
-      actual = "@six_archive//:six",
+    name = "six",
+    actual = "@six_archive//:six",
 )
 
 new_http_archive(
     name = "opencl_headers",
-    urls = ["http://v9.git.n.xiaomi.com/deep-computing/OpenCL-Headers/repository/archive.zip?ref=master"],
-    strip_prefix = "OpenCL-Headers-master-f039db6764d52388658ef15c30b2237bbda49803",
-    sha256 = "439dbdb4e7a02a218dd90d82170c9f7671487cd0e626a20e136690a91f173ad2",
     build_file = "mace/third_party/opencl-headers.BUILD",
+    sha256 = "439dbdb4e7a02a218dd90d82170c9f7671487cd0e626a20e136690a91f173ad2",
+    strip_prefix = "OpenCL-Headers-master-f039db6764d52388658ef15c30b2237bbda49803",
+    urls = ["http://v9.git.n.xiaomi.com/deep-computing/OpenCL-Headers/repository/archive.zip?ref=master"],
 )
 
-# Set up Android NDK
-android_ndk_repository(
-    name = "androidndk",
-    # Android 5.0
-    api_level = 21
+new_git_repository(
+    name = "opencl_clhpp",
+    build_file = "mace/third_party/opencl-clhpp.BUILD",
+    commit = "4c6f7d56271727e37fb19a9b47649dd175df2b12",
+    remote = "https://github.com/KhronosGroup/OpenCL-CLHPP.git",
 )
 
 git_repository(
-    name   = "com_github_gflags_gflags",
+    name = "com_github_gflags_gflags",
     #tag    = "v2.2.0",
-    commit = "30dbc81fb5ffdc98ea9b14b1918bfe4e8779b26e", # v2.2.0 + fix of include path
-    remote = "https://github.com/gflags/gflags.git"
+    commit = "30dbc81fb5ffdc98ea9b14b1918bfe4e8779b26e",  # v2.2.0 + fix of include path
+    remote = "https://github.com/gflags/gflags.git",
 )
 
 bind(
-    name   = "gflags",
+    name = "gflags",
     actual = "@com_github_gflags_gflags//:gflags",
 )
 
 bind(
-    name   = "gflags_nothreads",
+    name = "gflags_nothreads",
     actual = "@com_github_gflags_gflags//:gflags_nothreads",
 )
+
+# Set up Android NDK
+android_ndk_repository(
+    name = "androidndk",
+    # Android 5.0
+    api_level = 21,
+)

mace/core/BUILD

@@ -37,7 +37,6 @@ cc_library(
     ]),
     hdrs = glob([
         "*.h",
-        "runtime/opencl/cl2.hpp",
         "runtime/opencl/*.h",
         "runtime/hexagon/*.h",
     ]),
@@ -61,10 +60,10 @@ cc_library(
 cc_library(
     name = "opencl_headers",
     hdrs = glob([
-        "runtime/opencl/cl2.hpp",
         "runtime/opencl/*.h",
     ]),
     deps = [
+        "@opencl_clhpp//:opencl_clhpp",
         "@opencl_headers//:opencl20_headers",
     ],
 )

mace/core/runtime/opencl/cl2_header.h

@@ -9,6 +9,6 @@
 
 #define CL_HPP_TARGET_OPENCL_VERSION 200
 
-#include "mace/core/runtime/opencl/cl2.hpp"
+#include "include/CL/cl2.hpp"
 
 #endif  // MACE_CORE_RUNTIME_OPENCL_CL2_HEADER_H_

mace/core/runtime/opencl/opencl_allocator.cc

@@ -40,7 +40,7 @@ void *OpenCLAllocator::New(size_t nbytes) const {
   cl::Buffer *buffer = new cl::Buffer(OpenCLRuntime::Global()->context(),
                                       CL_MEM_READ_WRITE | CL_MEM_ALLOC_HOST_PTR,
                                       nbytes, nullptr, &error);
-  MACE_CHECK(error == CL_SUCCESS);
+  MACE_CHECK(error == CL_SUCCESS) << "error code: " << error;
   MACE_CHECK_NOTNULL(buffer);
   return static_cast<void *>(buffer);
 }

mace/third_party/opencl-clhpp.BUILD

+genrule(
+    name = "gen_opencl_clhpp",
+    srcs = glob([
+      "*",
+      "**/*",
+    ]),
+    outs = ["include/CL/cl.hpp", "include/CL/cl2.hpp"],
+    cmd = "workdir=$$(mktemp -d -t opencl-clhpp-build.XXXXXXXXXX); cp -aL $$(dirname $(location CMakeLists.txt))/* $$workdir; pushd $$workdir; mkdir build; pushd build; cmake ../ -DBUILD_DOCS=OFF -DBUILD_EXAMPLES=OFF -DBUILD_TESTS=OFF; make generate_clhpp generate_cl2hpp; popd; popd; cp -a $$workdir/build/* $(@D); rm -rf $$workdir; echo installing to  $(@D)",
+)
+
+cc_library(
+    name = "opencl_clhpp",
+    srcs = ["include/CL/cl.hpp", "include/CL/cl2.hpp"],
+    visibility = ["//visibility:public"],
+)