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62 lines
1.6 KiB
C
62 lines
1.6 KiB
C
/*
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* Copyright (c) 2010 The WebM project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include "vpx_config.h"
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#include "vp8_rtcd.h"
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#include "vp8/common/blockd.h"
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#include "vpx_mem/vpx_mem.h"
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#if HAVE_ALTIVEC
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extern void short_idct4x4llm_ppc(short *input, unsigned char *pred_ptr,
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int pred_stride, unsigned char *dst_ptr,
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int dst_stride);
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extern void vp8_short_idct4x4llm_1_c(short *input, unsigned char *pred_ptr,
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int pred_stride, unsigned char *dst_ptr,
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int dst_stride);
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#endif
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void vp8_dequantize_b_c(BLOCKD *d, short *DQC)
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{
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int i;
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short *DQ = d->dqcoeff;
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short *Q = d->qcoeff;
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for (i = 0; i < 16; i++)
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{
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DQ[i] = Q[i] * DQC[i];
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}
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}
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void vp8_dequant_idct_add_c(short *input, short *dq,
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unsigned char *dest, int stride)
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{
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int i;
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#if HAVE_ALTIVEC
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short output[16];
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#endif
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for (i = 0; i < 16; i++)
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{
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input[i] = dq[i] * input[i];
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}
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#if HAVE_ALTIVEC
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// memset(output, 0, 16); // future-proof
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short_idct4x4llm_ppc(input, output, 8, output, 8);
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vp8_short_idct4x4llm_1_c(output, dest, stride, dest, stride);
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#else
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vp8_short_idct4x4llm_c(input, dest, stride, dest, stride);
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#endif
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memset(input, 0, 32);
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}
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