gecko/media/libvpx/vp8/common/recon.c
2010-11-08 09:47:17 +02:00

182 lines
4.1 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_ports/config.h"
#include "recon.h"
#include "blockd.h"
void vp8_recon_b_c
(
unsigned char *pred_ptr,
short *diff_ptr,
unsigned char *dst_ptr,
int stride
)
{
int r, c;
for (r = 0; r < 4; r++)
{
for (c = 0; c < 4; c++)
{
int a = diff_ptr[c] + pred_ptr[c] ;
if (a < 0)
a = 0;
if (a > 255)
a = 255;
dst_ptr[c] = (unsigned char) a ;
}
dst_ptr += stride;
diff_ptr += 16;
pred_ptr += 16;
}
}
void vp8_recon4b_c
(
unsigned char *pred_ptr,
short *diff_ptr,
unsigned char *dst_ptr,
int stride
)
{
int r, c;
for (r = 0; r < 4; r++)
{
for (c = 0; c < 16; c++)
{
int a = diff_ptr[c] + pred_ptr[c] ;
if (a < 0)
a = 0;
if (a > 255)
a = 255;
dst_ptr[c] = (unsigned char) a ;
}
dst_ptr += stride;
diff_ptr += 16;
pred_ptr += 16;
}
}
void vp8_recon2b_c
(
unsigned char *pred_ptr,
short *diff_ptr,
unsigned char *dst_ptr,
int stride
)
{
int r, c;
for (r = 0; r < 4; r++)
{
for (c = 0; c < 8; c++)
{
int a = diff_ptr[c] + pred_ptr[c] ;
if (a < 0)
a = 0;
if (a > 255)
a = 255;
dst_ptr[c] = (unsigned char) a ;
}
dst_ptr += stride;
diff_ptr += 8;
pred_ptr += 8;
}
}
void vp8_recon_mby_c(const vp8_recon_rtcd_vtable_t *rtcd, MACROBLOCKD *x)
{
#if ARCH_ARM
BLOCKD *b = &x->block[0];
RECON_INVOKE(rtcd, recon4)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
/*b = &x->block[4];*/
b += 4;
RECON_INVOKE(rtcd, recon4)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
/*b = &x->block[8];*/
b += 4;
RECON_INVOKE(rtcd, recon4)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
/*b = &x->block[12];*/
b += 4;
RECON_INVOKE(rtcd, recon4)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
#else
int i;
for (i = 0; i < 16; i += 4)
{
BLOCKD *b = &x->block[i];
RECON_INVOKE(rtcd, recon4)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
}
#endif
}
void vp8_recon_mb_c(const vp8_recon_rtcd_vtable_t *rtcd, MACROBLOCKD *x)
{
#if ARCH_ARM
BLOCKD *b = &x->block[0];
RECON_INVOKE(rtcd, recon4)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
b += 4;
RECON_INVOKE(rtcd, recon4)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
b += 4;
RECON_INVOKE(rtcd, recon4)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
b += 4;
RECON_INVOKE(rtcd, recon4)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
b += 4;
/*b = &x->block[16];*/
RECON_INVOKE(rtcd, recon2)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
b++;
b++;
RECON_INVOKE(rtcd, recon2)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
b++;
b++;
RECON_INVOKE(rtcd, recon2)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
b++;
b++;
RECON_INVOKE(rtcd, recon2)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
#else
int i;
for (i = 0; i < 16; i += 4)
{
BLOCKD *b = &x->block[i];
RECON_INVOKE(rtcd, recon4)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
}
for (i = 16; i < 24; i += 2)
{
BLOCKD *b = &x->block[i];
RECON_INVOKE(rtcd, recon2)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
}
#endif
}