chore: import upstream snapshot with attribution

2026-07-13 12:47:05 +08:00
commit 4f3b7da785
7394 changed files with 2005594 additions and 0 deletions
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+/* ******************************************************************************
+ *
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Apache License, Version 2.0 which is available at
+ * https://www.apache.org/licenses/LICENSE-2.0.
+ *
+ *  See the NOTICE file distributed with this work for additional
+ *  information regarding copyright ownership.
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ ******************************************************************************/
+
+//
+// @author Yurii Shyrma (iuriish@yahoo.com), created on 05.02.2018
+//
+
+#include <system/op_boilerplate.h>
+#if NOT_EXCLUDED(OP_meshgrid)
+
+#include <ops/declarable/CustomOperations.h>
+#include <ops/declarable/helpers/meshgrid.h>
+
+#include <numeric>
+
+namespace sd {
+namespace ops {
+
+CUSTOM_OP_IMPL(meshgrid, -1, -1, false, 0, 0) {
+  int rank = block.width();
+
+  if (rank == 1) {
+    OUTPUT_VARIABLE(0)->assign(INPUT_VARIABLE(0));
+    return Status::OK;
+  }
+
+  bool swapFirst2Dims = block.getIArguments()->size() > 0 ? (bool)INT_ARG(0) : true;
+
+  std::vector<NDArray*> inArrs(rank);
+  std::vector<NDArray*> outArrs(rank);
+
+  for (int i = 0; i < rank; ++i) {
+    inArrs[i] = INPUT_VARIABLE(i);
+    outArrs[i] = OUTPUT_VARIABLE(i);
+  }
+
+  helpers::meshgrid(block.launchContext(), inArrs, outArrs, swapFirst2Dims);
+
+  return Status::OK;
+}
+
+DECLARE_TYPES(meshgrid) {
+  getOpDescriptor()->setAllowedInputTypes(ANY)->setAllowedOutputTypes(INHERIT)->setSameMode(true);
+}
+
+DECLARE_SHAPE_FN(meshgrid) {
+  bool swapFirst2Dims = block.getIArguments()->size() > 0 ? (bool)INT_ARG(0) : true;
+
+  int rank = block.width();
+  LongType* outShapeInfo = nullptr;
+  ALLOCATE(outShapeInfo, block.getWorkspace(), shape::shapeInfoLength(rank), sd::LongType);
+  outShapeInfo[0] = rank;
+  for (int i = 1; i <= rank; ++i) outShapeInfo[i] = (LongType)shape::length(inputShape->at(i - 1));
+
+  if (swapFirst2Dims && rank > 1) math::sd_swap<LongType>(outShapeInfo[1], outShapeInfo[2]);
+
+  auto in = inputShape->at(0);
+  ShapeUtils::updateStridesAndType(outShapeInfo, in, shape::order(in));
+
+  auto shapes = SHAPELIST();
+  auto resultShape = CONSTANT(outShapeInfo);
+  shapes->push_back(resultShape);
+
+  for (int i = 2; i <= rank; ++i) {
+    shapes->push_back(resultShape);
+  }
+
+  return shapes;
+}
+
+}  // namespace ops
+}  // namespace sd
+
+#endif