179     int prevIndex = polygonSize - 1;  in SkIsConvexPolygon()  local
183     SkVector v0 = polygonVerts[currIndex] - polygonVerts[prevIndex];  in SkIsConvexPolygon()
211         prevIndex = currIndex;  in SkIsConvexPolygon()
1141                              uint16_t prevIndex, uint16_t currIndex, uint16_t nextIndex) {  in is_reflex_vertex()  argument
1142     int side = compute_side(inputPolygonVerts[prevIndex],  in is_reflex_vertex()
1143                             inputPolygonVerts[currIndex] - inputPolygonVerts[prevIndex],  in is_reflex_vertex()
1191     for (int currIndex = 0, prevIndex = inputPolygonSize - 1;  in SkOffsetSimplePolygon()  local
1193          prevIndex = currIndex, ++currIndex) {  in SkOffsetSimplePolygon()
1205                                  prevIndex, currIndex, nextIndex)) {  in SkOffsetSimplePolygon()
1208                 if (!SkComputeRadialSteps(normals[prevIndex], normals[currIndex], offset,  in SkOffsetSimplePolygon()
1238     for (int currIndex = 0, prevIndex = inputPolygonSize - 1;  in SkOffsetSimplePolygon()  local
1240          prevIndex = currIndex, ++currIndex) {  in SkOffsetSimplePolygon()
1244                              prevIndex, currIndex, nextIndex)) {  in SkOffsetSimplePolygon()
1247             SkVector prevNormal = normals[prevIndex];  in SkOffsetSimplePolygon()
1611     int prevIndex = polygonSize - 1;  in SkTriangulateSimplePolygon()  local
1612     SkVector v0 = polygonVerts[0] - polygonVerts[prevIndex];  in SkTriangulateSimplePolygon()
1619         triangulationVertices[currIndex].fPrevIndex = prevIndex;  in SkTriangulateSimplePolygon()
1628         prevIndex = currIndex;  in SkTriangulateSimplePolygon()
1639     prevIndex = polygonSize - 1;  in SkTriangulateSimplePolygon()
1640     for (int currIndex = 0; currIndex < polygonSize; prevIndex = currIndex, ++currIndex) {  in SkTriangulateSimplePolygon()
1644             TriangulationVertex::VertexType prevType = triangulationVertices[prevIndex].fVertexType;  in SkTriangulateSimplePolygon()