[PHI decoupling] migrate poly_util.h to phi (#48499)

* rm poly_util.h

* format code

* fix some problems

* format code

paddle/phi/kernels/funcs/detection/nms_util.h

@@ -17,9 +17,9 @@ limitations under the License. */
 #include <utility>
 #include <vector>
 
-#include "paddle/fluid/operators/detection/poly_util.h"
 #include "paddle/phi/core/dense_tensor.h"
 #include "paddle/phi/core/device_context.h"
+#include "paddle/phi/kernels/funcs/detection/poly_util.h"
 
 namespace phi {
 namespace funcs {
@@ -96,10 +96,10 @@ T PolyIoU(const T* box1,
           const T* box2,
           const size_t box_size,
           const bool normalized) {
-  T bbox1_area = paddle::operators::PolyArea<T>(box1, box_size, normalized);
-  T bbox2_area = paddle::operators::PolyArea<T>(box2, box_size, normalized);
+  T bbox1_area = phi::funcs::PolyArea<T>(box1, box_size, normalized);
+  T bbox2_area = phi::funcs::PolyArea<T>(box2, box_size, normalized);
   T inter_area =
-      paddle::operators::PolyOverlapArea<T>(box1, box2, box_size, normalized);
+      phi::funcs::PolyOverlapArea<T>(box1, box2, box_size, normalized);
   if (bbox1_area == 0 || bbox2_area == 0 || inter_area == 0) {
     // If coordinate values are invalid
     // if area size <= 0,  return 0.

paddle/fluid/operators/detection/poly_util.cc → paddle/phi/kernels/funcs/detection/poly_util.cc

@@ -14,12 +14,10 @@ limitations under the License. */
 #ifndef POLY_UTIL_CC_
 #define POLY_UTIL_CC_
 
-#include "paddle/fluid/operators/detection/poly_util.h"
+#include "paddle/phi/kernels/funcs/detection/poly_util.h"
 
-#include "paddle/fluid/framework/op_registry.h"
-
-namespace paddle {
-namespace operators {
+namespace phi {
+namespace funcs {
 
 using phi::funcs::gpc_free_polygon;
 using phi::funcs::gpc_polygon_clip;
@@ -134,7 +132,7 @@ T PolyOverlapArea(const T* box1,
   return inter_area;
 }
 
-}  // namespace operators
-}  // namespace paddle
+}  // namespace funcs
+}  // namespace phi
 
 #endif

paddle/fluid/operators/detection/poly_util.h → paddle/phi/kernels/funcs/detection/poly_util.h

@@ -15,11 +15,10 @@ limitations under the License. */
 
 #include <vector>
 
-#include "paddle/fluid/framework/op_registry.h"
 #include "paddle/phi/kernels/funcs/gpc.h"
 
-namespace paddle {
-namespace operators {
+namespace phi {
+namespace funcs {
 
 template <class T>
 class Point_ {
@@ -70,7 +69,7 @@ T PolyOverlapArea(const T* box1,
                   const T* box2,
                   const size_t box_size,
                   const bool normalized);
-}  // namespace operators
-}  // namespace paddle
+}  // namespace funcs
+}  // namespace phi
 
-#include "paddle/fluid/operators/detection/poly_util.cc"
+#include "paddle/phi/kernels/funcs/detection/poly_util.cc"