ed9c66f584
Instead of using the predict buffer, the decoder now writes
the predictor into the recon buffer. For blocks with eob=0,
unnecessary idcts can be eliminated. This gave a performance
boost of ~1.8% for the HD clips used.
Tero: Added needed changes to ARM side and scheduled some
assembly code to prevent interlocks.
Patch Set 6: Merged (I1bcdca7a95aacc3a181b9faa6b10e3a71ee24df3)
into this commit because of similarities in the idct
functions.
Patch Set 7: EC bug fix.
Change-Id: Ie31d90b5d3522e1108163f2ac491e455e3f955e6
153 lines
4.4 KiB
C
153 lines
4.4 KiB
C
/*
|
|
* Copyright (c) 2010 The WebM project authors. All Rights Reserved.
|
|
*
|
|
* Use of this source code is governed by a BSD-style license
|
|
* that can be found in the LICENSE file in the root of the source
|
|
* tree. An additional intellectual property rights grant can be found
|
|
* in the file PATENTS. All contributing project authors may
|
|
* be found in the AUTHORS file in the root of the source tree.
|
|
*/
|
|
|
|
#include "vpx_config.h"
|
|
#include "vp8/common/idct.h"
|
|
#include "vp8/decoder/dequantize.h"
|
|
|
|
void vp8_dequant_dc_idct_add_y_block_mmx
|
|
(short *q, short *dq,
|
|
unsigned char *dst, int stride, char *eobs, short *dc)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < 4; i++)
|
|
{
|
|
if (eobs[0] > 1)
|
|
vp8_dequant_dc_idct_add_mmx (q, dq, dst, stride, dc[0]);
|
|
else if (eobs[0] == 1)
|
|
vp8_dc_only_idct_add_mmx (dc[0], dst, stride, dst, stride);
|
|
|
|
if (eobs[1] > 1)
|
|
vp8_dequant_dc_idct_add_mmx (q+16, dq, dst+4, stride, dc[1]);
|
|
else if (eobs[1] == 1)
|
|
vp8_dc_only_idct_add_mmx (dc[1], dst+4, stride, dst+4, stride);
|
|
|
|
if (eobs[2] > 1)
|
|
vp8_dequant_dc_idct_add_mmx (q+32, dq, dst+8, stride, dc[2]);
|
|
else if (eobs[2] == 1)
|
|
vp8_dc_only_idct_add_mmx (dc[2], dst+8, stride, dst+8, stride);
|
|
|
|
if (eobs[3] > 1)
|
|
vp8_dequant_dc_idct_add_mmx (q+48, dq, dst+12, stride, dc[3]);
|
|
else if (eobs[3] == 1)
|
|
vp8_dc_only_idct_add_mmx (dc[3], dst+12, stride, dst+12, stride);
|
|
|
|
q += 64;
|
|
dc += 4;
|
|
dst += 4*stride;
|
|
eobs += 4;
|
|
}
|
|
}
|
|
|
|
void vp8_dequant_idct_add_y_block_mmx
|
|
(short *q, short *dq,
|
|
unsigned char *dst, int stride, char *eobs)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < 4; i++)
|
|
{
|
|
if (eobs[0] > 1)
|
|
vp8_dequant_idct_add_mmx (q, dq, dst, stride);
|
|
else if (eobs[0] == 1)
|
|
{
|
|
vp8_dc_only_idct_add_mmx (q[0]*dq[0], dst, stride, dst, stride);
|
|
((int *)q)[0] = 0;
|
|
}
|
|
|
|
if (eobs[1] > 1)
|
|
vp8_dequant_idct_add_mmx (q+16, dq, dst+4, stride);
|
|
else if (eobs[1] == 1)
|
|
{
|
|
vp8_dc_only_idct_add_mmx (q[16]*dq[0], dst+4, stride,
|
|
dst+4, stride);
|
|
((int *)(q+16))[0] = 0;
|
|
}
|
|
|
|
if (eobs[2] > 1)
|
|
vp8_dequant_idct_add_mmx (q+32, dq, dst+8, stride);
|
|
else if (eobs[2] == 1)
|
|
{
|
|
vp8_dc_only_idct_add_mmx (q[32]*dq[0], dst+8, stride,
|
|
dst+8, stride);
|
|
((int *)(q+32))[0] = 0;
|
|
}
|
|
|
|
if (eobs[3] > 1)
|
|
vp8_dequant_idct_add_mmx (q+48, dq, dst+12, stride);
|
|
else if (eobs[3] == 1)
|
|
{
|
|
vp8_dc_only_idct_add_mmx (q[48]*dq[0], dst+12, stride,
|
|
dst+12, stride);
|
|
((int *)(q+48))[0] = 0;
|
|
}
|
|
|
|
q += 64;
|
|
dst += 4*stride;
|
|
eobs += 4;
|
|
}
|
|
}
|
|
|
|
void vp8_dequant_idct_add_uv_block_mmx
|
|
(short *q, short *dq,
|
|
unsigned char *dstu, unsigned char *dstv, int stride, char *eobs)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < 2; i++)
|
|
{
|
|
if (eobs[0] > 1)
|
|
vp8_dequant_idct_add_mmx (q, dq, dstu, stride);
|
|
else if (eobs[0] == 1)
|
|
{
|
|
vp8_dc_only_idct_add_mmx (q[0]*dq[0], dstu, stride, dstu, stride);
|
|
((int *)q)[0] = 0;
|
|
}
|
|
|
|
if (eobs[1] > 1)
|
|
vp8_dequant_idct_add_mmx (q+16, dq, dstu+4, stride);
|
|
else if (eobs[1] == 1)
|
|
{
|
|
vp8_dc_only_idct_add_mmx (q[16]*dq[0], dstu+4, stride,
|
|
dstu+4, stride);
|
|
((int *)(q+16))[0] = 0;
|
|
}
|
|
|
|
q += 32;
|
|
dstu += 4*stride;
|
|
eobs += 2;
|
|
}
|
|
|
|
for (i = 0; i < 2; i++)
|
|
{
|
|
if (eobs[0] > 1)
|
|
vp8_dequant_idct_add_mmx (q, dq, dstv, stride);
|
|
else if (eobs[0] == 1)
|
|
{
|
|
vp8_dc_only_idct_add_mmx (q[0]*dq[0], dstv, stride, dstv, stride);
|
|
((int *)q)[0] = 0;
|
|
}
|
|
|
|
if (eobs[1] > 1)
|
|
vp8_dequant_idct_add_mmx (q+16, dq, dstv+4, stride);
|
|
else if (eobs[1] == 1)
|
|
{
|
|
vp8_dc_only_idct_add_mmx (q[16]*dq[0], dstv+4, stride,
|
|
dstv+4, stride);
|
|
((int *)(q+16))[0] = 0;
|
|
}
|
|
|
|
q += 32;
|
|
dstv += 4*stride;
|
|
eobs += 2;
|
|
}
|
|
}
|