477 static WEBP_INLINE void do_filter2(uint8_t* p, int step) {  in do_filter2()  argument
478   const int p1 = p[-2*step], p0 = p[-step], q0 = p[0], q1 = p[step];  in do_filter2()
482   p[-step] = VP8kclip1[p0 + a2];  in do_filter2()
487 static WEBP_INLINE void do_filter4(uint8_t* p, int step) {  in do_filter4()  argument
488   const int p1 = p[-2*step], p0 = p[-step], q0 = p[0], q1 = p[step];  in do_filter4()
493   p[-2*step] = VP8kclip1[p1 + a3];  in do_filter4()
494   p[-  step] = VP8kclip1[p0 + a2];  in do_filter4()
496   p[   step] = VP8kclip1[q1 - a3];  in do_filter4()
500 static WEBP_INLINE void do_filter6(uint8_t* p, int step) {  in do_filter6()  argument
501   const int p2 = p[-3*step], p1 = p[-2*step], p0 = p[-step];  in do_filter6()
502   const int q0 = p[0], q1 = p[step], q2 = p[2*step];  in do_filter6()
508   p[-3*step] = VP8kclip1[p2 + a3];  in do_filter6()
509   p[-2*step] = VP8kclip1[p1 + a2];  in do_filter6()
510   p[-  step] = VP8kclip1[p0 + a1];  in do_filter6()
512   p[   step] = VP8kclip1[q1 - a2];  in do_filter6()
513   p[ 2*step] = VP8kclip1[q2 - a3];  in do_filter6()
516 static WEBP_INLINE int hev(const uint8_t* p, int step, int thresh) {  in hev()  argument
517   const int p1 = p[-2*step], p0 = p[-step], q0 = p[0], q1 = p[step];  in hev()
521 static WEBP_INLINE int needs_filter(const uint8_t* p, int step, int t) {  in needs_filter()  argument
522   const int p1 = p[-2 * step], p0 = p[-step], q0 = p[0], q1 = p[step];  in needs_filter()
527                                      int step, int t, int it) {  in needs_filter2()  argument
528   const int p3 = p[-4 * step], p2 = p[-3 * step], p1 = p[-2 * step];  in needs_filter2()
529   const int p0 = p[-step], q0 = p[0];  in needs_filter2()
530   const int q1 = p[step], q2 = p[2 * step], q3 = p[3 * step];  in needs_filter2()