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/*
* Copyright (c) 2013 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 <assert.h>
#include "./vpx_config.h"
#include "vpx_scale/yv12config.h"
#include "vpx_mem/vpx_mem.h"
#include "vpx_scale/vpx_scale.h"
#if HAVE_DSPR2
static void extend_plane(uint8_t *const src, int src_stride,
int width, int height,
int extend_top, int extend_left,
int extend_bottom, int extend_right) {
int i, j;
uint8_t *left_src, *right_src;
uint8_t *left_dst_start, *right_dst_start;
uint8_t *left_dst, *right_dst;
uint8_t *top_src, *bot_src;
uint8_t *top_dst, *bot_dst;
uint32_t left_pix;
uint32_t right_pix;
uint32_t linesize;
/* copy the left and right most columns out */
left_src = src;
right_src = src + width - 1;
left_dst_start = src - extend_left;
right_dst_start = src + width;
for (i = height; i--; ) {
left_dst = left_dst_start;
right_dst = right_dst_start;
__asm__ __volatile__ (
"lb %[left_pix], 0(%[left_src]) \n\t"
"lb %[right_pix], 0(%[right_src]) \n\t"
"replv.qb %[left_pix], %[left_pix] \n\t"
"replv.qb %[right_pix], %[right_pix] \n\t"
: [left_pix] "=&r" (left_pix), [right_pix] "=&r" (right_pix)
: [left_src] "r" (left_src), [right_src] "r" (right_src)
);
for (j = extend_left/4; j--; ) {
__asm__ __volatile__ (
"sw %[left_pix], 0(%[left_dst]) \n\t"
"sw %[right_pix], 0(%[right_dst]) \n\t"
:
: [left_dst] "r" (left_dst), [left_pix] "r" (left_pix),
[right_dst] "r" (right_dst), [right_pix] "r" (right_pix)
);
left_dst += 4;
right_dst += 4;
}
for (j = extend_left%4; j--; ) {
__asm__ __volatile__ (
"sb %[left_pix], 0(%[left_dst]) \n\t"
"sb %[right_pix], 0(%[right_dst]) \n\t"
:
: [left_dst] "r" (left_dst), [left_pix] "r" (left_pix),
[right_dst] "r" (right_dst), [right_pix] "r" (right_pix)
);
left_dst += 1;
right_dst += 1;
}
left_src += src_stride;
right_src += src_stride;
left_dst_start += src_stride;
right_dst_start += src_stride;
}
/* Now copy the top and bottom lines into each line of the respective
* borders
*/
top_src = src - extend_left;
bot_src = src + src_stride * (height - 1) - extend_left;
top_dst = src + src_stride * (-extend_top) - extend_left;
bot_dst = src + src_stride * (height) - extend_left;
linesize = extend_left + extend_right + width;
for (i = 0; i < extend_top; i++) {
vpx_memcpy(top_dst, top_src, linesize);
top_dst += src_stride;
}
for (i = 0; i < extend_bottom; i++) {
vpx_memcpy(bot_dst, bot_src, linesize);
bot_dst += src_stride;
}
}
static void extend_frame(YV12_BUFFER_CONFIG *const ybf,
int subsampling_x, int subsampling_y,
int ext_size) {
const int c_w = ybf->uv_crop_width;
const int c_h = ybf->uv_crop_height;
const int c_ext_size = ext_size >> 1;
const int c_et = c_ext_size;
const int c_el = c_ext_size;
const int c_eb = c_ext_size + ybf->uv_height - ybf->uv_crop_height;
const int c_er = c_ext_size + ybf->uv_width - ybf->uv_crop_width;
assert(ybf->y_height - ybf->y_crop_height < 16);
assert(ybf->y_width - ybf->y_crop_width < 16);
assert(ybf->y_height - ybf->y_crop_height >= 0);
assert(ybf->y_width - ybf->y_crop_width >= 0);
extend_plane(ybf->y_buffer, ybf->y_stride,
ybf->y_crop_width, ybf->y_crop_height,
ext_size, ext_size,
ext_size + ybf->y_height - ybf->y_crop_height,
ext_size + ybf->y_width - ybf->y_crop_width);
extend_plane(ybf->u_buffer, ybf->uv_stride,
c_w, c_h, c_et, c_el, c_eb, c_er);
extend_plane(ybf->v_buffer, ybf->uv_stride,
c_w, c_h, c_et, c_el, c_eb, c_er);
}
void vp9_extend_frame_borders_dspr2(YV12_BUFFER_CONFIG *ybf,
int subsampling_x, int subsampling_y) {
extend_frame(ybf, subsampling_x, subsampling_y, ybf->border);
}
void vp9_extend_frame_inner_borders_dspr2(YV12_BUFFER_CONFIG *ybf,
int subsampling_x,
int subsampling_y) {
const int inner_bw = (ybf->border > VP9INNERBORDERINPIXELS) ?
VP9INNERBORDERINPIXELS : ybf->border;
extend_frame(ybf, subsampling_x, subsampling_y, inner_bw);
}
#endif
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