Upload zbuff.cpp

lib/zbuff.cpp

@@ -0,0 +1,28 @@
+#include <iostream>
+#include <cstdint>
+
+extern "C" {
+    void zbuff_check(int32_t * src_x, int32_t * src_y, float* depth, int data_size, bool* valid_mask, float * buffs, float * zbuffs, int height, int width) {
+
+        // std::cout<<width<<std::endl;
+        for (int i = 0; i < data_size; i++) {
+            if (0 == valid_mask[i] ) {
+                continue;
+            }
+            int x = src_x[i];
+            int y = src_y[i];
+            float z = depth[i];
+            if (-1 == buffs[y*width+x] ) {
+                buffs[y*width+x] = i;
+                zbuffs[y*width+x] = z;
+            }
+            else{
+
+                if (zbuffs[y*width+x] > z){
+                    buffs[y*width+x] = i;
+                    zbuffs[y*width+x] = z;
+                }
+            }
+        }
+    }
+}