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/*
* Copyright (c) 2012 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_rtcd.h"
#include "vpx/vpx_integer.h"
#if HAVE_DSPR2
inline void prefetch_load_int(unsigned char *src) {
__asm__ __volatile__("pref 0, 0(%[src]) \n\t" : : [src] "r"(src));
}
__inline void vp8_copy_mem16x16_dspr2(unsigned char *RESTRICT src,
int src_stride,
unsigned char *RESTRICT dst,
int dst_stride) {
int r;
unsigned int a0, a1, a2, a3;
for (r = 16; r--;) {
/* load src data in cache memory */
prefetch_load_int(src + src_stride);
/* use unaligned memory load and store */
__asm__ __volatile__(
"ulw %[a0], 0(%[src]) \n\t"
"ulw %[a1], 4(%[src]) \n\t"
"ulw %[a2], 8(%[src]) \n\t"
"ulw %[a3], 12(%[src]) \n\t"
"sw %[a0], 0(%[dst]) \n\t"
"sw %[a1], 4(%[dst]) \n\t"
"sw %[a2], 8(%[dst]) \n\t"
"sw %[a3], 12(%[dst]) \n\t"
: [a0] "=&r"(a0), [a1] "=&r"(a1), [a2] "=&r"(a2), [a3] "=&r"(a3)
: [src] "r"(src), [dst] "r"(dst));
src += src_stride;
dst += dst_stride;
}
}
__inline void vp8_copy_mem8x8_dspr2(unsigned char *RESTRICT src, int src_stride,
unsigned char *RESTRICT dst,
int dst_stride) {
int r;
unsigned int a0, a1;
/* load src data in cache memory */
prefetch_load_int(src + src_stride);
for (r = 8; r--;) {
/* use unaligned memory load and store */
__asm__ __volatile__(
"ulw %[a0], 0(%[src]) \n\t"
"ulw %[a1], 4(%[src]) \n\t"
"sw %[a0], 0(%[dst]) \n\t"
"sw %[a1], 4(%[dst]) \n\t"
: [a0] "=&r"(a0), [a1] "=&r"(a1)
: [src] "r"(src), [dst] "r"(dst));
src += src_stride;
dst += dst_stride;
}
}
__inline void vp8_copy_mem8x4_dspr2(unsigned char *RESTRICT src, int src_stride,
unsigned char *RESTRICT dst,
int dst_stride) {
int r;
unsigned int a0, a1;
/* load src data in cache memory */
prefetch_load_int(src + src_stride);
for (r = 4; r--;) {
/* use unaligned memory load and store */
__asm__ __volatile__(
"ulw %[a0], 0(%[src]) \n\t"
"ulw %[a1], 4(%[src]) \n\t"
"sw %[a0], 0(%[dst]) \n\t"
"sw %[a1], 4(%[dst]) \n\t"
: [a0] "=&r"(a0), [a1] "=&r"(a1)
: [src] "r"(src), [dst] "r"(dst));
src += src_stride;
dst += dst_stride;
}
}
#endif
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