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: #include "vpx_config.h"
michael@0: #include "vp8_rtcd.h"
michael@0: #include "vpx_mem/vpx_mem.h"
michael@0: 
michael@0: void vp8_dequant_idct_add_c(short *input, short *dq,
michael@0:                             unsigned char *dest, int stride);
michael@0: void vp8_dc_only_idct_add_c(short input_dc, unsigned char * pred,
michael@0:                             int pred_stride, unsigned char *dst_ptr,
michael@0:                             int dst_stride);
michael@0: 
michael@0: void vp8_dequant_idct_add_y_block_c
michael@0:             (short *q, short *dq,
michael@0:              unsigned char *dst, int stride, char *eobs)
michael@0: {
michael@0:     int i, j;
michael@0: 
michael@0:     for (i = 0; i < 4; i++)
michael@0:     {
michael@0:         for (j = 0; j < 4; j++)
michael@0:         {
michael@0:             if (*eobs++ > 1)
michael@0:                 vp8_dequant_idct_add_c (q, dq, dst, stride);
michael@0:             else
michael@0:             {
michael@0:                 vp8_dc_only_idct_add_c (q[0]*dq[0], dst, stride, dst, stride);
michael@0:                 vpx_memset(q, 0, 2 * sizeof(q[0]));
michael@0:             }
michael@0: 
michael@0:             q   += 16;
michael@0:             dst += 4;
michael@0:         }
michael@0: 
michael@0:         dst += 4*stride - 16;
michael@0:     }
michael@0: }
michael@0: 
michael@0: void vp8_dequant_idct_add_uv_block_c
michael@0:             (short *q, short *dq,
michael@0:              unsigned char *dstu, unsigned char *dstv, int stride, char *eobs)
michael@0: {
michael@0:     int i, j;
michael@0: 
michael@0:     for (i = 0; i < 2; i++)
michael@0:     {
michael@0:         for (j = 0; j < 2; j++)
michael@0:         {
michael@0:             if (*eobs++ > 1)
michael@0:                 vp8_dequant_idct_add_c (q, dq, dstu, stride);
michael@0:             else
michael@0:             {
michael@0:                 vp8_dc_only_idct_add_c (q[0]*dq[0], dstu, stride, dstu, stride);
michael@0:                 vpx_memset(q, 0, 2 * sizeof(q[0]));
michael@0:             }
michael@0: 
michael@0:             q    += 16;
michael@0:             dstu += 4;
michael@0:         }
michael@0: 
michael@0:         dstu += 4*stride - 8;
michael@0:     }
michael@0: 
michael@0:     for (i = 0; i < 2; i++)
michael@0:     {
michael@0:         for (j = 0; j < 2; j++)
michael@0:         {
michael@0:             if (*eobs++ > 1)
michael@0:                 vp8_dequant_idct_add_c (q, dq, dstv, stride);
michael@0:             else
michael@0:             {
michael@0:                 vp8_dc_only_idct_add_c (q[0]*dq[0], dstv, stride, dstv, stride);
michael@0:                 vpx_memset(q, 0, 2 * sizeof(q[0]));
michael@0:             }
michael@0: 
michael@0:             q    += 16;
michael@0:             dstv += 4;
michael@0:         }
michael@0: 
michael@0:         dstv += 4*stride - 8;
michael@0:     }
michael@0: }