improve pooling speed in gaze model. (#3881)

* improve pooling speed in gaze. test=develoop

* fix format test=develop

lite/backends/arm/math/pooling.h

@@ -76,7 +76,7 @@ void pooling1x1s2p0_max(const float* din,
                         int pad_bottom,
                         int pad_right);
 
-void pooling2x2s2_max(const float* din,
+void pooling2x2s2p0_max(const float* din,
                         float* dout,
                         int num,
                         int chout,
@@ -88,7 +88,32 @@ void pooling2x2s2_max(const float* din,
                         int pad_bottom,
                         int pad_right);
 
-void pooling2x2s2_avg(const float* din,
+void pooling2x2s2p0_avg(const float* din,
+                        float* dout,
+                        int num,
+                        int chout,
+                        int hout,
+                        int wout,
+                        int chin,
+                        int hin,
+                        int win,
+                        bool exclusive,
+                        int pad_bottom,
+                        int pad_right);
+
+void pooling2x2s2p1_max(const float* din,
+                        float* dout,
+                        int num,
+                        int chout,
+                        int hout,
+                        int wout,
+                        int chin,
+                        int hin,
+                        int win,
+                        int pad_bottom,
+                        int pad_right);
+
+void pooling2x2s2p1_avg(const float* din,
                         float* dout,
                         int num,
                         int chout,

lite/kernels/arm/pool_compute.cc

@@ -58,6 +58,7 @@ void PoolCompute::Run() {
   bool global_pooling = (paddings[0] == 0) && (ksize[0] == in_dims[2]) &&
                         (ksize[1] == in_dims[3]) && kps_equal && pads_equal;
   global_pooling = param.global_pooling || global_pooling;
+
   if (global_pooling) {
     for (size_t i = 0; i < ksize.size(); ++i) {
       paddings[2 * i] = 0;
@@ -107,7 +108,7 @@ void PoolCompute::Run() {
     } else if (ksize[0] == 2 && strides[0] == 2 && paddings[0] == 0 &&
                kps_equal) {
       if (pooling_type == "max") {
-        lite::arm::math::pooling2x2s2_max(din,
+        lite::arm::math::pooling2x2s2p0_max(din,
                                             dout,
                                             out_dims[0],
                                             out_dims[1],
@@ -120,7 +121,7 @@ void PoolCompute::Run() {
                                             paddings[3]);
         return;
       } else if (pooling_type == "avg") {
-        lite::arm::math::pooling2x2s2_avg(din,
+        lite::arm::math::pooling2x2s2p0_avg(din,
                                             dout,
                                             out_dims[0],
                                             out_dims[1],
@@ -134,8 +135,38 @@ void PoolCompute::Run() {
                                             paddings[3]);
         return;
       }
-    } else if (ksize[0] == 3 && strides[0] == 1 && paddings[0] == 1 &&
+    } else if (ksize[0] == 2 && strides[0] == 2 && paddings[0] == 1 &&
                kps_equal) {
+      if (pooling_type == "max") {
+        lite::arm::math::pooling2x2s2p1_max(din,
+                                            dout,
+                                            out_dims[0],
+                                            out_dims[1],
+                                            out_dims[2],
+                                            out_dims[3],
+                                            in_dims[1],
+                                            in_dims[2],
+                                            in_dims[3],
+                                            paddings[1],
+                                            paddings[3]);
+        return;
+      } else if (pooling_type == "avg") {
+        lite::arm::math::pooling2x2s2p1_avg(din,
+                                            dout,
+                                            out_dims[0],
+                                            out_dims[1],
+                                            out_dims[2],
+                                            out_dims[3],
+                                            in_dims[1],
+                                            in_dims[2],
+                                            in_dims[3],
+                                            exclusive,
+                                            paddings[1],
+                                            paddings[3]);
+        return;
+      }
+    } else if (ksize[0] == 3 && strides[0] == 1 && paddings[0] == 1 &&
+               pads_equal && kps_equal) {
       if (pooling_type == "max") {
         lite::arm::math::pooling3x3s1p1_max(din,
                                             dout,
@@ -165,7 +196,7 @@ void PoolCompute::Run() {
         return;
       }
     } else if (ksize[0] == 3 && strides[0] == 1 && paddings[0] == 0 &&
-               kps_equal) {
+               pads_equal && kps_equal) {
       if (pooling_type == "max") {
         lite::arm::math::pooling3x3s1p0_max(din,
                                             dout,
@@ -195,7 +226,7 @@ void PoolCompute::Run() {
         return;
       }
     } else if (ksize[0] == 3 && strides[0] == 2 && paddings[0] == 0 &&
-               kps_equal) {
+               pads_equal && kps_equal) {
       if (pooling_type == "max") {
         lite::arm::math::pooling3x3s2p0_max(din,
                                             dout,
@@ -225,7 +256,7 @@ void PoolCompute::Run() {
         return;
       }
     } else if (ksize[0] == 3 && strides[0] == 2 && paddings[0] == 1 &&
-               kps_equal) {
+               pads_equal && kps_equal) {
       if (pooling_type == "max") {
         lite::arm::math::pooling3x3s2p1_max(din,
                                             dout,
@@ -276,7 +307,6 @@ void PoolCompute::Run() {
                                  use_quantizer,
                                  pooling_type);
 }
-
 }  // namespace arm
 }  // namespace kernels
 }  // namespace lite