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/*
* Copyright © 2018, VideoLAN and dav1d authors
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "src/cpu.h"
#include "src/ipred.h"
decl_angular_ipred_fn(BF(dav1d_ipred_dc, neon));
decl_angular_ipred_fn(BF(dav1d_ipred_dc_128, neon));
decl_angular_ipred_fn(BF(dav1d_ipred_dc_top, neon));
decl_angular_ipred_fn(BF(dav1d_ipred_dc_left, neon));
decl_angular_ipred_fn(BF(dav1d_ipred_h, neon));
decl_angular_ipred_fn(BF(dav1d_ipred_v, neon));
decl_angular_ipred_fn(BF(dav1d_ipred_paeth, neon));
decl_angular_ipred_fn(BF(dav1d_ipred_smooth, neon));
decl_angular_ipred_fn(BF(dav1d_ipred_smooth_v, neon));
decl_angular_ipred_fn(BF(dav1d_ipred_smooth_h, neon));
decl_angular_ipred_fn(BF(dav1d_ipred_filter, neon));
decl_cfl_pred_fn(BF(dav1d_ipred_cfl, neon));
decl_cfl_pred_fn(BF(dav1d_ipred_cfl_128, neon));
decl_cfl_pred_fn(BF(dav1d_ipred_cfl_top, neon));
decl_cfl_pred_fn(BF(dav1d_ipred_cfl_left, neon));
decl_cfl_ac_fn(BF(dav1d_ipred_cfl_ac_420, neon));
decl_cfl_ac_fn(BF(dav1d_ipred_cfl_ac_422, neon));
decl_cfl_ac_fn(BF(dav1d_ipred_cfl_ac_444, neon));
decl_pal_pred_fn(BF(dav1d_pal_pred, neon));
#if ARCH_AARCH64
void BF(dav1d_ipred_z1_upsample_edge, neon)(pixel *out, const int hsz,
const pixel *const in,
const int end HIGHBD_DECL_SUFFIX);
void BF(dav1d_ipred_z1_filter_edge, neon)(pixel *out, const int sz,
const pixel *const in,
const int end, const int strength);
void BF(dav1d_ipred_pixel_set, neon)(pixel *out, const pixel px,
const int n);
void BF(dav1d_ipred_z1_fill1, neon)(pixel *dst, ptrdiff_t stride,
const pixel *const top, const int width,
const int height, const int dx,
const int max_base_x);
void BF(dav1d_ipred_z1_fill2, neon)(pixel *dst, ptrdiff_t stride,
const pixel *const top, const int width,
const int height, const int dx,
const int max_base_x);
static void ipred_z1_neon(pixel *dst, const ptrdiff_t stride,
const pixel *const topleft_in,
const int width, const int height, int angle,
const int max_width, const int max_height
HIGHBD_DECL_SUFFIX)
{
const int is_sm = (angle >> 9) & 0x1;
const int enable_intra_edge_filter = angle >> 10;
angle &= 511;
int dx = dav1d_dr_intra_derivative[angle >> 1];
pixel top_out[64 + 64 + (64+15)*2 + 16];
int max_base_x;
const int upsample_above = enable_intra_edge_filter ?
get_upsample(width + height, 90 - angle, is_sm) : 0;
if (upsample_above) {
BF(dav1d_ipred_z1_upsample_edge, neon)(top_out, width + height,
topleft_in,
width + imin(width, height)
HIGHBD_TAIL_SUFFIX);
max_base_x = 2 * (width + height) - 2;
dx <<= 1;
} else {
const int filter_strength = enable_intra_edge_filter ?
get_filter_strength(width + height, 90 - angle, is_sm) : 0;
if (filter_strength) {
BF(dav1d_ipred_z1_filter_edge, neon)(top_out, width + height,
topleft_in,
width + imin(width, height),
filter_strength);
max_base_x = width + height - 1;
} else {
max_base_x = width + imin(width, height) - 1;
memcpy(top_out, &topleft_in[1], (max_base_x + 1) * sizeof(pixel));
}
}
const int base_inc = 1 + upsample_above;
int pad_pixels = width + 15; // max(dx >> 6) == 15
BF(dav1d_ipred_pixel_set, neon)(&top_out[max_base_x + 1],
top_out[max_base_x], pad_pixels * base_inc);
if (upsample_above)
BF(dav1d_ipred_z1_fill2, neon)(dst, stride, top_out, width, height,
dx, max_base_x);
else
BF(dav1d_ipred_z1_fill1, neon)(dst, stride, top_out, width, height,
dx, max_base_x);
}
void BF(dav1d_ipred_z3_fill1, neon)(pixel *dst, ptrdiff_t stride,
const pixel *const left, const int width,
const int height, const int dy,
const int max_base_y);
void BF(dav1d_ipred_z3_fill2, neon)(pixel *dst, ptrdiff_t stride,
const pixel *const left, const int width,
const int height, const int dy,
const int max_base_y);
void BF(dav1d_ipred_reverse, neon)(pixel *dst, const pixel *const src,
const int n);
static void ipred_z3_neon(pixel *dst, const ptrdiff_t stride,
const pixel *const topleft_in,
const int width, const int height, int angle,
const int max_width, const int max_height
HIGHBD_DECL_SUFFIX)
{
const int is_sm = (angle >> 9) & 0x1;
const int enable_intra_edge_filter = angle >> 10;
angle &= 511;
assert(angle > 180);
int dy = dav1d_dr_intra_derivative[(270 - angle) >> 1];
pixel flipped[64 + 64 + 16];
pixel left_out[64 + 64 + (64+15)*2];
int max_base_y;
const int upsample_left = enable_intra_edge_filter ?
get_upsample(width + height, angle - 180, is_sm) : 0;
if (upsample_left) {
flipped[0] = topleft_in[0];
BF(dav1d_ipred_reverse, neon)(&flipped[1], &topleft_in[0],
height + imax(width, height));
BF(dav1d_ipred_z1_upsample_edge, neon)(left_out, width + height,
flipped,
height + imin(width, height)
HIGHBD_TAIL_SUFFIX);
max_base_y = 2 * (width + height) - 2;
dy <<= 1;
} else {
const int filter_strength = enable_intra_edge_filter ?
get_filter_strength(width + height, angle - 180, is_sm) : 0;
if (filter_strength) {
flipped[0] = topleft_in[0];
BF(dav1d_ipred_reverse, neon)(&flipped[1], &topleft_in[0],
height + imax(width, height));
BF(dav1d_ipred_z1_filter_edge, neon)(left_out, width + height,
flipped,
height + imin(width, height),
filter_strength);
max_base_y = width + height - 1;
} else {
BF(dav1d_ipred_reverse, neon)(left_out, &topleft_in[0],
height + imin(width, height));
max_base_y = height + imin(width, height) - 1;
}
}
const int base_inc = 1 + upsample_left;
// The tbx based implementation needs left[] to have 64 bytes intitialized,
// the other implementation can read height + max(dy >> 6) past the end.
int pad_pixels = imax(64 - max_base_y - 1, height + 15);
BF(dav1d_ipred_pixel_set, neon)(&left_out[max_base_y + 1],
left_out[max_base_y], pad_pixels * base_inc);
if (upsample_left)
BF(dav1d_ipred_z3_fill2, neon)(dst, stride, left_out, width, height,
dy, max_base_y);
else
BF(dav1d_ipred_z3_fill1, neon)(dst, stride, left_out, width, height,
dy, max_base_y);
}
#endif
static ALWAYS_INLINE void intra_pred_dsp_init_arm(Dav1dIntraPredDSPContext *const c) {
const unsigned flags = dav1d_get_cpu_flags();
if (!(flags & DAV1D_ARM_CPU_FLAG_NEON)) return;
c->intra_pred[DC_PRED] = BF(dav1d_ipred_dc, neon);
c->intra_pred[DC_128_PRED] = BF(dav1d_ipred_dc_128, neon);
c->intra_pred[TOP_DC_PRED] = BF(dav1d_ipred_dc_top, neon);
c->intra_pred[LEFT_DC_PRED] = BF(dav1d_ipred_dc_left, neon);
c->intra_pred[HOR_PRED] = BF(dav1d_ipred_h, neon);
c->intra_pred[VERT_PRED] = BF(dav1d_ipred_v, neon);
c->intra_pred[PAETH_PRED] = BF(dav1d_ipred_paeth, neon);
c->intra_pred[SMOOTH_PRED] = BF(dav1d_ipred_smooth, neon);
c->intra_pred[SMOOTH_V_PRED] = BF(dav1d_ipred_smooth_v, neon);
c->intra_pred[SMOOTH_H_PRED] = BF(dav1d_ipred_smooth_h, neon);
#if ARCH_AARCH64
c->intra_pred[Z1_PRED] = ipred_z1_neon;
c->intra_pred[Z3_PRED] = ipred_z3_neon;
#endif
c->intra_pred[FILTER_PRED] = BF(dav1d_ipred_filter, neon);
c->cfl_pred[DC_PRED] = BF(dav1d_ipred_cfl, neon);
c->cfl_pred[DC_128_PRED] = BF(dav1d_ipred_cfl_128, neon);
c->cfl_pred[TOP_DC_PRED] = BF(dav1d_ipred_cfl_top, neon);
c->cfl_pred[LEFT_DC_PRED] = BF(dav1d_ipred_cfl_left, neon);
c->cfl_ac[DAV1D_PIXEL_LAYOUT_I420 - 1] = BF(dav1d_ipred_cfl_ac_420, neon);
c->cfl_ac[DAV1D_PIXEL_LAYOUT_I422 - 1] = BF(dav1d_ipred_cfl_ac_422, neon);
c->cfl_ac[DAV1D_PIXEL_LAYOUT_I444 - 1] = BF(dav1d_ipred_cfl_ac_444, neon);
c->pal_pred = BF(dav1d_pal_pred, neon);
}
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