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: #ifndef VP9_ENCODER_VP9_VARIANCE_H_
michael@0: #define VP9_ENCODER_VP9_VARIANCE_H_
michael@0: 
michael@0: #include "vpx/vpx_integer.h"
michael@0: // #include "./vpx_config.h"
michael@0: 
michael@0: void variance(const uint8_t *src_ptr,
michael@0:               int  source_stride,
michael@0:               const uint8_t *ref_ptr,
michael@0:               int  recon_stride,
michael@0:               int  w,
michael@0:               int  h,
michael@0:               unsigned int *sse,
michael@0:               int *sum);
michael@0: 
michael@0: typedef unsigned int(*vp9_sad_fn_t)(const uint8_t *src_ptr,
michael@0:                                     int source_stride,
michael@0:                                     const uint8_t *ref_ptr,
michael@0:                                     int ref_stride,
michael@0:                                     unsigned int max_sad);
michael@0: 
michael@0: typedef unsigned int(*vp9_sad_avg_fn_t)(const uint8_t *src_ptr,
michael@0:                                         int source_stride,
michael@0:                                         const uint8_t *ref_ptr,
michael@0:                                         int ref_stride,
michael@0:                                         const uint8_t *second_pred,
michael@0:                                         unsigned int max_sad);
michael@0: 
michael@0: typedef void (*vp9_sad_multi_fn_t)(const uint8_t *src_ptr,
michael@0:                                    int source_stride,
michael@0:                                    const uint8_t *ref_ptr,
michael@0:                                    int  ref_stride,
michael@0:                                    unsigned int *sad_array);
michael@0: 
michael@0: typedef void (*vp9_sad_multi1_fn_t)(const uint8_t *src_ptr,
michael@0:                                     int source_stride,
michael@0:                                     const uint8_t *ref_ptr,
michael@0:                                     int  ref_stride,
michael@0:                                     unsigned int *sad_array);
michael@0: 
michael@0: typedef void (*vp9_sad_multi_d_fn_t)(const uint8_t *src_ptr,
michael@0:                                      int source_stride,
michael@0:                                      const uint8_t* const ref_ptr[],
michael@0:                                      int  ref_stride, unsigned int *sad_array);
michael@0: 
michael@0: typedef unsigned int (*vp9_variance_fn_t)(const uint8_t *src_ptr,
michael@0:                                           int source_stride,
michael@0:                                           const uint8_t *ref_ptr,
michael@0:                                           int ref_stride,
michael@0:                                           unsigned int *sse);
michael@0: 
michael@0: typedef unsigned int (*vp9_subpixvariance_fn_t)(const uint8_t *src_ptr,
michael@0:                                                 int source_stride,
michael@0:                                                 int xoffset,
michael@0:                                                 int yoffset,
michael@0:                                                 const uint8_t *ref_ptr,
michael@0:                                                 int Refstride,
michael@0:                                                 unsigned int *sse);
michael@0: 
michael@0: typedef unsigned int (*vp9_subp_avg_variance_fn_t)(const uint8_t *src_ptr,
michael@0:                                                    int source_stride,
michael@0:                                                    int xoffset,
michael@0:                                                    int yoffset,
michael@0:                                                    const uint8_t *ref_ptr,
michael@0:                                                    int Refstride,
michael@0:                                                    unsigned int *sse,
michael@0:                                                    const uint8_t *second_pred);
michael@0: 
michael@0: typedef unsigned int (*vp9_getmbss_fn_t)(const short *);
michael@0: 
michael@0: typedef unsigned int (*vp9_get16x16prederror_fn_t)(const uint8_t *src_ptr,
michael@0:                                                    int source_stride,
michael@0:                                                    const uint8_t *ref_ptr,
michael@0:                                                    int  ref_stride);
michael@0: 
michael@0: typedef struct vp9_variance_vtable {
michael@0:   vp9_sad_fn_t               sdf;
michael@0:   vp9_sad_avg_fn_t           sdaf;
michael@0:   vp9_variance_fn_t          vf;
michael@0:   vp9_subpixvariance_fn_t    svf;
michael@0:   vp9_subp_avg_variance_fn_t svaf;
michael@0:   vp9_variance_fn_t          svf_halfpix_h;
michael@0:   vp9_variance_fn_t          svf_halfpix_v;
michael@0:   vp9_variance_fn_t          svf_halfpix_hv;
michael@0:   vp9_sad_multi_fn_t         sdx3f;
michael@0:   vp9_sad_multi1_fn_t        sdx8f;
michael@0:   vp9_sad_multi_d_fn_t       sdx4df;
michael@0: } vp9_variance_fn_ptr_t;
michael@0: 
michael@0: static void comp_avg_pred(uint8_t *comp_pred, const uint8_t *pred, int width,
michael@0:                           int height, const uint8_t *ref, int ref_stride) {
michael@0:   int i, j;
michael@0: 
michael@0:   for (i = 0; i < height; i++) {
michael@0:     for (j = 0; j < width; j++) {
michael@0:       int tmp;
michael@0:       tmp = pred[j] + ref[j];
michael@0:       comp_pred[j] = (tmp + 1) >> 1;
michael@0:     }
michael@0:     comp_pred += width;
michael@0:     pred += width;
michael@0:     ref += ref_stride;
michael@0:   }
michael@0: }
michael@0: #endif  // VP9_ENCODER_VP9_VARIANCE_H_