michael@0: /*
michael@0:  *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
michael@0:  *
michael@0:  *  Use of this source code is governed by a BSD-style license
michael@0:  *  that can be found in the LICENSE file in the root of the source
michael@0:  *  tree. An additional intellectual property rights grant can be found
michael@0:  *  in the file PATENTS.  All contributing project authors may
michael@0:  *  be found in the AUTHORS file in the root of the source tree.
michael@0:  */
michael@0: 
michael@0: 
michael@0: #include <limits.h>
michael@0: #include <stdlib.h>
michael@0: #include "vpx_config.h"
michael@0: #include "vpx/vpx_integer.h"
michael@0: 
michael@0: static unsigned int sad_mx_n_c(const unsigned char *src_ptr, int src_stride,
michael@0:                                const unsigned char *ref_ptr, int ref_stride,
michael@0:                                unsigned int max_sad, int m, int n)
michael@0: {
michael@0:     int r, c;
michael@0:     unsigned int sad = 0;
michael@0: 
michael@0:     for (r = 0; r < n; r++)
michael@0:     {
michael@0:         for (c = 0; c < m; c++)
michael@0:         {
michael@0:             sad += abs(src_ptr[c] - ref_ptr[c]);
michael@0:         }
michael@0: 
michael@0:         if (sad > max_sad)
michael@0:           break;
michael@0: 
michael@0:         src_ptr += src_stride;
michael@0:         ref_ptr += ref_stride;
michael@0:     }
michael@0: 
michael@0:     return sad;
michael@0: }
michael@0: 
michael@0: /* max_sad is provided as an optional optimization point. Alternative
michael@0:  * implementations of these functions are not required to check it.
michael@0:  */
michael@0: 
michael@0: unsigned int vp8_sad16x16_c(const unsigned char *src_ptr, int src_stride,
michael@0:                             const unsigned char *ref_ptr, int ref_stride,
michael@0:                             unsigned int max_sad)
michael@0: {
michael@0:     return sad_mx_n_c(src_ptr, src_stride, ref_ptr, ref_stride, max_sad, 16, 16);
michael@0: }
michael@0: 
michael@0: unsigned int vp8_sad8x8_c(const unsigned char *src_ptr, int src_stride,
michael@0:                           const unsigned char *ref_ptr, int ref_stride,
michael@0:                           unsigned int max_sad)
michael@0: {
michael@0:     return sad_mx_n_c(src_ptr, src_stride, ref_ptr, ref_stride, max_sad, 8, 8);
michael@0: }
michael@0: 
michael@0: unsigned int vp8_sad16x8_c(const unsigned char *src_ptr, int src_stride,
michael@0:                            const unsigned char *ref_ptr, int ref_stride,
michael@0:                            unsigned int max_sad)
michael@0: {
michael@0:     return sad_mx_n_c(src_ptr, src_stride, ref_ptr, ref_stride, max_sad, 16, 8);
michael@0: 
michael@0: }
michael@0: 
michael@0: unsigned int vp8_sad8x16_c(const unsigned char *src_ptr, int src_stride,
michael@0:                            const unsigned char *ref_ptr, int ref_stride,
michael@0:                            unsigned int max_sad)
michael@0: {
michael@0:     return sad_mx_n_c(src_ptr, src_stride, ref_ptr, ref_stride, max_sad, 8, 16);
michael@0: }
michael@0: 
michael@0: unsigned int vp8_sad4x4_c(const unsigned char *src_ptr, int src_stride,
michael@0:                           const unsigned char *ref_ptr, int ref_stride,
michael@0:                           unsigned int max_sad)
michael@0: {
michael@0:     return sad_mx_n_c(src_ptr, src_stride, ref_ptr, ref_stride, max_sad, 4, 4);
michael@0: }
michael@0: 
michael@0: void vp8_sad16x16x3_c(const unsigned char *src_ptr, int src_stride,
michael@0:                       const unsigned char *ref_ptr, int ref_stride,
michael@0:                       unsigned int *sad_array)
michael@0: {
michael@0:     sad_array[0] = vp8_sad16x16_c(src_ptr, src_stride, ref_ptr + 0, ref_stride, UINT_MAX);
michael@0:     sad_array[1] = vp8_sad16x16_c(src_ptr, src_stride, ref_ptr + 1, ref_stride, UINT_MAX);
michael@0:     sad_array[2] = vp8_sad16x16_c(src_ptr, src_stride, ref_ptr + 2, ref_stride, UINT_MAX);
michael@0: }
michael@0: 
michael@0: void vp8_sad16x16x8_c(const unsigned char *src_ptr, int src_stride,
michael@0:                       const unsigned char *ref_ptr, int ref_stride,
michael@0:                       unsigned short *sad_array)
michael@0: {
michael@0:     sad_array[0] = (unsigned short)vp8_sad16x16_c(src_ptr, src_stride, ref_ptr + 0, ref_stride, UINT_MAX);
michael@0:     sad_array[1] = (unsigned short)vp8_sad16x16_c(src_ptr, src_stride, ref_ptr + 1, ref_stride, UINT_MAX);
michael@0:     sad_array[2] = (unsigned short)vp8_sad16x16_c(src_ptr, src_stride, ref_ptr + 2, ref_stride, UINT_MAX);
michael@0:     sad_array[3] = (unsigned short)vp8_sad16x16_c(src_ptr, src_stride, ref_ptr + 3, ref_stride, UINT_MAX);
michael@0:     sad_array[4] = (unsigned short)vp8_sad16x16_c(src_ptr, src_stride, ref_ptr + 4, ref_stride, UINT_MAX);
michael@0:     sad_array[5] = (unsigned short)vp8_sad16x16_c(src_ptr, src_stride, ref_ptr + 5, ref_stride, UINT_MAX);
michael@0:     sad_array[6] = (unsigned short)vp8_sad16x16_c(src_ptr, src_stride, ref_ptr + 6, ref_stride, UINT_MAX);
michael@0:     sad_array[7] = (unsigned short)vp8_sad16x16_c(src_ptr, src_stride, ref_ptr + 7, ref_stride, UINT_MAX);
michael@0: }
michael@0: 
michael@0: void vp8_sad16x8x3_c(const unsigned char *src_ptr, int src_stride,
michael@0:                      const unsigned char *ref_ptr, int ref_stride,
michael@0:                      unsigned int *sad_array)
michael@0: {
michael@0:     sad_array[0] = vp8_sad16x8_c(src_ptr, src_stride, ref_ptr + 0, ref_stride, UINT_MAX);
michael@0:     sad_array[1] = vp8_sad16x8_c(src_ptr, src_stride, ref_ptr + 1, ref_stride, UINT_MAX);
michael@0:     sad_array[2] = vp8_sad16x8_c(src_ptr, src_stride, ref_ptr + 2, ref_stride, UINT_MAX);
michael@0: }
michael@0: 
michael@0: void vp8_sad16x8x8_c(const unsigned char *src_ptr, int src_stride,
michael@0:                      const unsigned char *ref_ptr, int ref_stride,
michael@0:                      unsigned short *sad_array)
michael@0: {
michael@0:     sad_array[0] = (unsigned short)vp8_sad16x8_c(src_ptr, src_stride, ref_ptr + 0, ref_stride, UINT_MAX);
michael@0:     sad_array[1] = (unsigned short)vp8_sad16x8_c(src_ptr, src_stride, ref_ptr + 1, ref_stride, UINT_MAX);
michael@0:     sad_array[2] = (unsigned short)vp8_sad16x8_c(src_ptr, src_stride, ref_ptr + 2, ref_stride, UINT_MAX);
michael@0:     sad_array[3] = (unsigned short)vp8_sad16x8_c(src_ptr, src_stride, ref_ptr + 3, ref_stride, UINT_MAX);
michael@0:     sad_array[4] = (unsigned short)vp8_sad16x8_c(src_ptr, src_stride, ref_ptr + 4, ref_stride, UINT_MAX);
michael@0:     sad_array[5] = (unsigned short)vp8_sad16x8_c(src_ptr, src_stride, ref_ptr + 5, ref_stride, UINT_MAX);
michael@0:     sad_array[6] = (unsigned short)vp8_sad16x8_c(src_ptr, src_stride, ref_ptr + 6, ref_stride, UINT_MAX);
michael@0:     sad_array[7] = (unsigned short)vp8_sad16x8_c(src_ptr, src_stride, ref_ptr + 7, ref_stride, UINT_MAX);
michael@0: }
michael@0: 
michael@0: void vp8_sad8x8x3_c(const unsigned char *src_ptr, int src_stride,
michael@0:                     const unsigned char *ref_ptr, int ref_stride,
michael@0:                     unsigned int *sad_array)
michael@0: {
michael@0:     sad_array[0] = vp8_sad8x8_c(src_ptr, src_stride, ref_ptr + 0, ref_stride, UINT_MAX);
michael@0:     sad_array[1] = vp8_sad8x8_c(src_ptr, src_stride, ref_ptr + 1, ref_stride, UINT_MAX);
michael@0:     sad_array[2] = vp8_sad8x8_c(src_ptr, src_stride, ref_ptr + 2, ref_stride, UINT_MAX);
michael@0: }
michael@0: 
michael@0: void vp8_sad8x8x8_c(const unsigned char *src_ptr, int src_stride,
michael@0:                     const unsigned char *ref_ptr, int ref_stride,
michael@0:                     unsigned short *sad_array)
michael@0: {
michael@0:     sad_array[0] = (unsigned short)vp8_sad8x8_c(src_ptr, src_stride, ref_ptr + 0, ref_stride, UINT_MAX);
michael@0:     sad_array[1] = (unsigned short)vp8_sad8x8_c(src_ptr, src_stride, ref_ptr + 1, ref_stride, UINT_MAX);
michael@0:     sad_array[2] = (unsigned short)vp8_sad8x8_c(src_ptr, src_stride, ref_ptr + 2, ref_stride, UINT_MAX);
michael@0:     sad_array[3] = (unsigned short)vp8_sad8x8_c(src_ptr, src_stride, ref_ptr + 3, ref_stride, UINT_MAX);
michael@0:     sad_array[4] = (unsigned short)vp8_sad8x8_c(src_ptr, src_stride, ref_ptr + 4, ref_stride, UINT_MAX);
michael@0:     sad_array[5] = (unsigned short)vp8_sad8x8_c(src_ptr, src_stride, ref_ptr + 5, ref_stride, UINT_MAX);
michael@0:     sad_array[6] = (unsigned short)vp8_sad8x8_c(src_ptr, src_stride, ref_ptr + 6, ref_stride, UINT_MAX);
michael@0:     sad_array[7] = (unsigned short)vp8_sad8x8_c(src_ptr, src_stride, ref_ptr + 7, ref_stride, UINT_MAX);
michael@0: }
michael@0: 
michael@0: void vp8_sad8x16x3_c(const unsigned char *src_ptr, int src_stride,
michael@0:                      const unsigned char *ref_ptr, int ref_stride,
michael@0:                      unsigned int *sad_array)
michael@0: {
michael@0:     sad_array[0] = vp8_sad8x16_c(src_ptr, src_stride, ref_ptr + 0, ref_stride, UINT_MAX);
michael@0:     sad_array[1] = vp8_sad8x16_c(src_ptr, src_stride, ref_ptr + 1, ref_stride, UINT_MAX);
michael@0:     sad_array[2] = vp8_sad8x16_c(src_ptr, src_stride, ref_ptr + 2, ref_stride, UINT_MAX);
michael@0: }
michael@0: 
michael@0: void vp8_sad8x16x8_c(const unsigned char *src_ptr, int src_stride,
michael@0:                      const unsigned char *ref_ptr, int ref_stride,
michael@0:                      unsigned short *sad_array)
michael@0: {
michael@0:     sad_array[0] = (unsigned short)vp8_sad8x16_c(src_ptr, src_stride, ref_ptr + 0, ref_stride, UINT_MAX);
michael@0:     sad_array[1] = (unsigned short)vp8_sad8x16_c(src_ptr, src_stride, ref_ptr + 1, ref_stride, UINT_MAX);
michael@0:     sad_array[2] = (unsigned short)vp8_sad8x16_c(src_ptr, src_stride, ref_ptr + 2, ref_stride, UINT_MAX);
michael@0:     sad_array[3] = (unsigned short)vp8_sad8x16_c(src_ptr, src_stride, ref_ptr + 3, ref_stride, UINT_MAX);
michael@0:     sad_array[4] = (unsigned short)vp8_sad8x16_c(src_ptr, src_stride, ref_ptr + 4, ref_stride, UINT_MAX);
michael@0:     sad_array[5] = (unsigned short)vp8_sad8x16_c(src_ptr, src_stride, ref_ptr + 5, ref_stride, UINT_MAX);
michael@0:     sad_array[6] = (unsigned short)vp8_sad8x16_c(src_ptr, src_stride, ref_ptr + 6, ref_stride, UINT_MAX);
michael@0:     sad_array[7] = (unsigned short)vp8_sad8x16_c(src_ptr, src_stride, ref_ptr + 7, ref_stride, UINT_MAX);
michael@0: }
michael@0: 
michael@0: void vp8_sad4x4x3_c(const unsigned char *src_ptr, int src_stride,
michael@0:                     const unsigned char *ref_ptr, int ref_stride,
michael@0:                     unsigned int *sad_array)
michael@0: {
michael@0:     sad_array[0] = vp8_sad4x4_c(src_ptr, src_stride, ref_ptr + 0, ref_stride, UINT_MAX);
michael@0:     sad_array[1] = vp8_sad4x4_c(src_ptr, src_stride, ref_ptr + 1, ref_stride, UINT_MAX);
michael@0:     sad_array[2] = vp8_sad4x4_c(src_ptr, src_stride, ref_ptr + 2, ref_stride, UINT_MAX);
michael@0: }
michael@0: 
michael@0: void vp8_sad4x4x8_c(const unsigned char *src_ptr, int src_stride,
michael@0:                     const unsigned char *ref_ptr, int ref_stride,
michael@0:                     unsigned short *sad_array)
michael@0: {
michael@0:     sad_array[0] = (unsigned short)vp8_sad4x4_c(src_ptr, src_stride, ref_ptr + 0, ref_stride, UINT_MAX);
michael@0:     sad_array[1] = (unsigned short)vp8_sad4x4_c(src_ptr, src_stride, ref_ptr + 1, ref_stride, UINT_MAX);
michael@0:     sad_array[2] = (unsigned short)vp8_sad4x4_c(src_ptr, src_stride, ref_ptr + 2, ref_stride, UINT_MAX);
michael@0:     sad_array[3] = (unsigned short)vp8_sad4x4_c(src_ptr, src_stride, ref_ptr + 3, ref_stride, UINT_MAX);
michael@0:     sad_array[4] = (unsigned short)vp8_sad4x4_c(src_ptr, src_stride, ref_ptr + 4, ref_stride, UINT_MAX);
michael@0:     sad_array[5] = (unsigned short)vp8_sad4x4_c(src_ptr, src_stride, ref_ptr + 5, ref_stride, UINT_MAX);
michael@0:     sad_array[6] = (unsigned short)vp8_sad4x4_c(src_ptr, src_stride, ref_ptr + 6, ref_stride, UINT_MAX);
michael@0:     sad_array[7] = (unsigned short)vp8_sad4x4_c(src_ptr, src_stride, ref_ptr + 7, ref_stride, UINT_MAX);
michael@0: }
michael@0: 
michael@0: void vp8_sad16x16x4d_c(const unsigned char *src_ptr, int src_stride,
michael@0:                        const unsigned char * const ref_ptr[], int ref_stride,
michael@0:                        unsigned int *sad_array)
michael@0: {
michael@0:     sad_array[0] = vp8_sad16x16_c(src_ptr, src_stride, ref_ptr[0], ref_stride, UINT_MAX);
michael@0:     sad_array[1] = vp8_sad16x16_c(src_ptr, src_stride, ref_ptr[1], ref_stride, UINT_MAX);
michael@0:     sad_array[2] = vp8_sad16x16_c(src_ptr, src_stride, ref_ptr[2], ref_stride, UINT_MAX);
michael@0:     sad_array[3] = vp8_sad16x16_c(src_ptr, src_stride, ref_ptr[3], ref_stride, UINT_MAX);
michael@0: }
michael@0: 
michael@0: void vp8_sad16x8x4d_c(const unsigned char *src_ptr, int src_stride,
michael@0:                       const unsigned char * const ref_ptr[], int ref_stride,
michael@0:                       unsigned int *sad_array)
michael@0: {
michael@0:     sad_array[0] = vp8_sad16x8_c(src_ptr, src_stride, ref_ptr[0], ref_stride, UINT_MAX);
michael@0:     sad_array[1] = vp8_sad16x8_c(src_ptr, src_stride, ref_ptr[1], ref_stride, UINT_MAX);
michael@0:     sad_array[2] = vp8_sad16x8_c(src_ptr, src_stride, ref_ptr[2], ref_stride, UINT_MAX);
michael@0:     sad_array[3] = vp8_sad16x8_c(src_ptr, src_stride, ref_ptr[3], ref_stride, UINT_MAX);
michael@0: }
michael@0: 
michael@0: void vp8_sad8x8x4d_c(const unsigned char *src_ptr, int src_stride,
michael@0:                      const unsigned char * const ref_ptr[], int ref_stride,
michael@0:                      unsigned int *sad_array)
michael@0: {
michael@0:     sad_array[0] = vp8_sad8x8_c(src_ptr, src_stride, ref_ptr[0], ref_stride, UINT_MAX);
michael@0:     sad_array[1] = vp8_sad8x8_c(src_ptr, src_stride, ref_ptr[1], ref_stride, UINT_MAX);
michael@0:     sad_array[2] = vp8_sad8x8_c(src_ptr, src_stride, ref_ptr[2], ref_stride, UINT_MAX);
michael@0:     sad_array[3] = vp8_sad8x8_c(src_ptr, src_stride, ref_ptr[3], ref_stride, UINT_MAX);
michael@0: }
michael@0: 
michael@0: void vp8_sad8x16x4d_c(const unsigned char *src_ptr, int src_stride,
michael@0:                       const unsigned char * const ref_ptr[], int ref_stride,
michael@0:                       unsigned int *sad_array)
michael@0: {
michael@0:     sad_array[0] = vp8_sad8x16_c(src_ptr, src_stride, ref_ptr[0], ref_stride, UINT_MAX);
michael@0:     sad_array[1] = vp8_sad8x16_c(src_ptr, src_stride, ref_ptr[1], ref_stride, UINT_MAX);
michael@0:     sad_array[2] = vp8_sad8x16_c(src_ptr, src_stride, ref_ptr[2], ref_stride, UINT_MAX);
michael@0:     sad_array[3] = vp8_sad8x16_c(src_ptr, src_stride, ref_ptr[3], ref_stride, UINT_MAX);
michael@0: }
michael@0: 
michael@0: void vp8_sad4x4x4d_c(const unsigned char *src_ptr, int src_stride,
michael@0:                      const unsigned char * const ref_ptr[], int  ref_stride,
michael@0:                      unsigned int *sad_array)
michael@0: {
michael@0:     sad_array[0] = vp8_sad4x4_c(src_ptr, src_stride, ref_ptr[0], ref_stride, UINT_MAX);
michael@0:     sad_array[1] = vp8_sad4x4_c(src_ptr, src_stride, ref_ptr[1], ref_stride, UINT_MAX);
michael@0:     sad_array[2] = vp8_sad4x4_c(src_ptr, src_stride, ref_ptr[2], ref_stride, UINT_MAX);
michael@0:     sad_array[3] = vp8_sad4x4_c(src_ptr, src_stride, ref_ptr[3], ref_stride, UINT_MAX);
michael@0: }
michael@0: 
michael@0: /* Copy 2 macroblocks to a buffer */
michael@0: void vp8_copy32xn_c(unsigned char *src_ptr, int src_stride,
michael@0:                     unsigned char *dst_ptr, int dst_stride,
michael@0:                     int height)
michael@0: {
michael@0:     int r;
michael@0: 
michael@0:     for (r = 0; r < height; r++)
michael@0:     {
michael@0: #if !(CONFIG_FAST_UNALIGNED)
michael@0:         dst_ptr[0] = src_ptr[0];
michael@0:         dst_ptr[1] = src_ptr[1];
michael@0:         dst_ptr[2] = src_ptr[2];
michael@0:         dst_ptr[3] = src_ptr[3];
michael@0:         dst_ptr[4] = src_ptr[4];
michael@0:         dst_ptr[5] = src_ptr[5];
michael@0:         dst_ptr[6] = src_ptr[6];
michael@0:         dst_ptr[7] = src_ptr[7];
michael@0:         dst_ptr[8] = src_ptr[8];
michael@0:         dst_ptr[9] = src_ptr[9];
michael@0:         dst_ptr[10] = src_ptr[10];
michael@0:         dst_ptr[11] = src_ptr[11];
michael@0:         dst_ptr[12] = src_ptr[12];
michael@0:         dst_ptr[13] = src_ptr[13];
michael@0:         dst_ptr[14] = src_ptr[14];
michael@0:         dst_ptr[15] = src_ptr[15];
michael@0:         dst_ptr[16] = src_ptr[16];
michael@0:         dst_ptr[17] = src_ptr[17];
michael@0:         dst_ptr[18] = src_ptr[18];
michael@0:         dst_ptr[19] = src_ptr[19];
michael@0:         dst_ptr[20] = src_ptr[20];
michael@0:         dst_ptr[21] = src_ptr[21];
michael@0:         dst_ptr[22] = src_ptr[22];
michael@0:         dst_ptr[23] = src_ptr[23];
michael@0:         dst_ptr[24] = src_ptr[24];
michael@0:         dst_ptr[25] = src_ptr[25];
michael@0:         dst_ptr[26] = src_ptr[26];
michael@0:         dst_ptr[27] = src_ptr[27];
michael@0:         dst_ptr[28] = src_ptr[28];
michael@0:         dst_ptr[29] = src_ptr[29];
michael@0:         dst_ptr[30] = src_ptr[30];
michael@0:         dst_ptr[31] = src_ptr[31];
michael@0: #else
michael@0:         ((uint32_t *)dst_ptr)[0] = ((uint32_t *)src_ptr)[0] ;
michael@0:         ((uint32_t *)dst_ptr)[1] = ((uint32_t *)src_ptr)[1] ;
michael@0:         ((uint32_t *)dst_ptr)[2] = ((uint32_t *)src_ptr)[2] ;
michael@0:         ((uint32_t *)dst_ptr)[3] = ((uint32_t *)src_ptr)[3] ;
michael@0:         ((uint32_t *)dst_ptr)[4] = ((uint32_t *)src_ptr)[4] ;
michael@0:         ((uint32_t *)dst_ptr)[5] = ((uint32_t *)src_ptr)[5] ;
michael@0:         ((uint32_t *)dst_ptr)[6] = ((uint32_t *)src_ptr)[6] ;
michael@0:         ((uint32_t *)dst_ptr)[7] = ((uint32_t *)src_ptr)[7] ;
michael@0: #endif
michael@0:         src_ptr += src_stride;
michael@0:         dst_ptr += dst_stride;
michael@0: 
michael@0:     }
michael@0: }