ref: 05239f0c41780ee22ba7273f03edf6e7210ed58b
dir: /vpx_scale/arm/nds/yv12extend.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.
*/
/****************************************************************************
*
* Module Title : yv12extend.c
*
* Description :
*
***************************************************************************/
/****************************************************************************
* Header Files
****************************************************************************/
#include "vpx_scale/yv12config.h"
#include "vpx_mem/vpx_mem.h"
#include <nitro.h>
#include <nitro/mi.h>
#include <nitro/itcm_begin.h>
//---- DMA Number
#define DMA_NO 3
/****************************************************************************
* Exports
****************************************************************************/
/****************************************************************************
*
****************************************************************************/
void
vp8_yv12_extend_frame_borders(YV12_BUFFER_CONFIG *ybf)
{
int i;
unsigned char *src_ptr1, *src_ptr2;
unsigned char *dest_ptr1, *dest_ptr2;
unsigned int Border;
int plane_stride;
int plane_height;
int plane_width;
/***********/
/* Y Plane */
/***********/
Border = ybf->border;
plane_stride = ybf->y_stride;
plane_height = ybf->y_height;
plane_width = ybf->y_width;
// copy the left and right most columns out
src_ptr1 = ybf->y_buffer;
src_ptr2 = src_ptr1 + plane_width - 1;
dest_ptr1 = src_ptr1 - Border;
dest_ptr2 = src_ptr2 + 1;
for (i = 0; i < plane_height; i++)
{
mi_cpu_fill8(dest_ptr1, src_ptr1[0], Border);
mi_cpu_fill8(dest_ptr2, src_ptr2[0], Border);
src_ptr1 += plane_stride;
src_ptr2 += plane_stride;
dest_ptr1 += plane_stride;
dest_ptr2 += plane_stride;
}
// Now copy the top and bottom source lines into each line of the respective borders
src_ptr1 = ybf->y_buffer - Border;
src_ptr2 = src_ptr1 + (plane_height * plane_stride) - plane_stride;
dest_ptr1 = src_ptr1 - (Border * plane_stride);
dest_ptr2 = src_ptr2 + plane_stride;
for (i = 0; i < (int)Border; i++)
{
mi_cpu_copy_fast(src_ptr1, dest_ptr1, plane_stride);
mi_cpu_copy_fast(src_ptr2, dest_ptr2, plane_stride);
dest_ptr1 += plane_stride;
dest_ptr2 += plane_stride;
}
plane_stride /= 2;
plane_height /= 2;
plane_width /= 2;
Border /= 2;
/***********/
/* U Plane */
/***********/
// copy the left and right most columns out
src_ptr1 = ybf->u_buffer;
src_ptr2 = src_ptr1 + plane_width - 1;
dest_ptr1 = src_ptr1 - Border;
dest_ptr2 = src_ptr2 + 1;
for (i = 0; i < plane_height; i++)
{
mi_cpu_fill8(dest_ptr1, src_ptr1[0], Border);
mi_cpu_fill8(dest_ptr2, src_ptr2[0], Border);
src_ptr1 += plane_stride;
src_ptr2 += plane_stride;
dest_ptr1 += plane_stride;
dest_ptr2 += plane_stride;
}
// Now copy the top and bottom source lines into each line of the respective borders
src_ptr1 = ybf->u_buffer - Border;
src_ptr2 = src_ptr1 + (plane_height * plane_stride) - plane_stride;
dest_ptr1 = src_ptr1 - (Border * plane_stride);
dest_ptr2 = src_ptr2 + plane_stride;
for (i = 0; i < (int)(Border); i++)
{
mi_cpu_copy_fast(src_ptr1, dest_ptr1, plane_stride);
mi_cpu_copy_fast(src_ptr2, dest_ptr2, plane_stride);
dest_ptr1 += plane_stride;
dest_ptr2 += plane_stride;
}
/***********/
/* V Plane */
/***********/
// copy the left and right most columns out
src_ptr1 = ybf->v_buffer;
src_ptr2 = src_ptr1 + plane_width - 1;
dest_ptr1 = src_ptr1 - Border;
dest_ptr2 = src_ptr2 + 1;
for (i = 0; i < plane_height; i++)
{
mi_cpu_fill8(dest_ptr1, src_ptr1[0], Border);
mi_cpu_fill8(dest_ptr2, src_ptr2[0], Border);
src_ptr1 += plane_stride;
src_ptr2 += plane_stride;
dest_ptr1 += plane_stride;
dest_ptr2 += plane_stride;
}
// Now copy the top and bottom source lines into each line of the respective borders
src_ptr1 = ybf->v_buffer - Border;
src_ptr2 = src_ptr1 + (plane_height * plane_stride) - plane_stride;
dest_ptr1 = src_ptr1 - (Border * plane_stride);
dest_ptr2 = src_ptr2 + plane_stride;
for (i = 0; i < (int)(Border); i++)
{
mi_cpu_copy_fast(src_ptr1, dest_ptr1, plane_stride);
mi_cpu_copy_fast(src_ptr2, dest_ptr2, plane_stride);
dest_ptr1 += plane_stride;
dest_ptr2 += plane_stride;
}
}
/****************************************************************************
*
* ROUTINE : vp8_yv12_copy_frame
*
* INPUTS :
*
* OUTPUTS : None.
*
* RETURNS : void
*
* FUNCTION : Copies the source image into the destination image and
* updates the destination's UMV borders.
*
* SPECIAL NOTES : The frames are assumed to be identical in size.
*
****************************************************************************/
void
vp8_yv12_copy_frame(YV12_BUFFER_CONFIG *src_ybc, YV12_BUFFER_CONFIG *dst_ybc)
{
int yplane_size = (src_ybc->y_height + 2 * src_ybc->border) * (src_ybc->y_stride);
int mem_size = (yplane_size * 3 / 2) + (src_ybc->y_stride * 2);
mi_cpu_copy_fast(src_ybc->buffer_alloc, dst_ybc->buffer_alloc, mem_size);
/* unsigned char *src_y, *dst_y;
unsigned char *src_u, *dst_u;
unsigned char *src_v, *dst_v;
int yheight, uv_height;
int ystride, uv_stride;
int border;
int yoffset, uvoffset;
border = src_ybc->border;
yheight = src_ybc->y_height;
uv_height = src_ybc->uv_height;
ystride = src_ybc->y_stride;
uv_stride = src_ybc->uv_stride;
yoffset = border * (ystride + 1);
uvoffset = border/2 * (uv_stride + 1);
src_y = src_ybc->y_buffer - yoffset;
dst_y = dst_ybc->y_buffer - yoffset;
src_u = src_ybc->u_buffer - uvoffset;
dst_u = dst_ybc->u_buffer - uvoffset;
src_v = src_ybc->v_buffer - uvoffset;
dst_v = dst_ybc->v_buffer - uvoffset;
mi_cpu_copy_fast (src_y, dst_y, ystride * (yheight + 2 * border));
mi_cpu_copy_fast (src_u, dst_u, uv_stride * (uv_height + border));
mi_cpu_copy_fast (src_v, dst_v, uv_stride * (uv_height + border));
*/
}
#include <nitro/itcm_end.h>