93c32a55c2
Moving the eob structure allows for a non-struct based function to handle decoding an entire mb of idct/dequant/recon data. This allows for SIMD functions to idct/dequant/recon multiple blocks at once. SSE2 implementation gives 3% gain on Atom. Change-Id: I8a8f3efd546ea4e0535f517d94f347cfb737c9c2
117 lines
2.8 KiB
C
117 lines
2.8 KiB
C
/*
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* Copyright (c) 2010 The VP8 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_ports/config.h"
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#include "idct.h"
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#include "dequantize.h"
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void vp8_dequant_dc_idct_add_y_block_c
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(short *q, short *dq, unsigned char *pre,
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unsigned char *dst, int stride, char *eobs, short *dc)
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{
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int i, j;
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for (i = 0; i < 4; i++)
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{
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for (j = 0; j < 4; j++)
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{
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if (*eobs++ > 1)
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vp8_dequant_dc_idct_add_c (q, dq, pre, dst, 16, stride, dc[0]);
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else
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vp8_dc_only_idct_add_c (dc[0], pre, dst, 16, stride);
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q += 16;
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pre += 4;
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dst += 4;
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dc ++;
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}
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pre += 64 - 16;
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dst += 4*stride - 16;
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}
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}
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void vp8_dequant_idct_add_y_block_c
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(short *q, short *dq, unsigned char *pre,
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unsigned char *dst, int stride, char *eobs)
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{
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int i, j;
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for (i = 0; i < 4; i++)
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{
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for (j = 0; j < 4; j++)
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{
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if (*eobs++ > 1)
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vp8_dequant_idct_add_c (q, dq, pre, dst, 16, stride);
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else
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{
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vp8_dc_only_idct_add_c (q[0]*dq[0], pre, dst, 16, stride);
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((int *)q)[0] = 0;
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}
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q += 16;
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pre += 4;
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dst += 4;
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}
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pre += 64 - 16;
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dst += 4*stride - 16;
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}
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}
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void vp8_dequant_idct_add_uv_block_c
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(short *q, short *dq, unsigned char *pre,
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unsigned char *dstu, unsigned char *dstv, int stride, char *eobs)
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{
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int i, j;
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for (i = 0; i < 2; i++)
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{
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for (j = 0; j < 2; j++)
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{
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if (*eobs++ > 1)
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vp8_dequant_idct_add_c (q, dq, pre, dstu, 8, stride);
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else
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{
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vp8_dc_only_idct_add_c (q[0]*dq[0], pre, dstu, 8, stride);
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((int *)q)[0] = 0;
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}
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q += 16;
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pre += 4;
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dstu += 4;
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}
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pre += 32 - 8;
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dstu += 4*stride - 8;
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}
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for (i = 0; i < 2; i++)
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{
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for (j = 0; j < 2; j++)
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{
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if (*eobs++ > 1)
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vp8_dequant_idct_add_c (q, dq, pre, dstv, 8, stride);
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else
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{
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vp8_dc_only_idct_add_c (q[0]*dq[0], pre, dstv, 8, stride);
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((int *)q)[0] = 0;
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}
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q += 16;
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pre += 4;
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dstv += 4;
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}
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pre += 32 - 8;
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dstv += 4*stride - 8;
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}
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}
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