ref: c9427fd43a17d654402f49f8ce28c4991c7024da
dir: /src/itx_tmpl.c/
/*
* Copyright © 2018, VideoLAN and dav1d authors
* Copyright © 2018, Two Orioles, LLC
* 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 "config.h"
#include <assert.h>
#include <stddef.h>
#include <stdint.h>
#include <string.h>
#include "common/attributes.h"
#include "common/intops.h"
#include "src/itx.h"
#include "src/itx_1d.c"
typedef void (*itx_1d_fn)(const coef *in, ptrdiff_t in_s,
coef *out, ptrdiff_t out_s, const int range);
static void NOINLINE
inv_txfm_add_c(pixel *dst, const ptrdiff_t stride,
coef *const coeff, const int eob,
const int w, const int h, const int shift,
const itx_1d_fn first_1d_fn, const itx_1d_fn second_1d_fn,
const int has_dconly HIGHBD_DECL_SUFFIX)
{
int i, j;
assert((h >= 4 && h <= 64) && (w >= 4 && w <= 64));
const int is_rect2 = w * 2 == h || h * 2 == w;
const int bitdepth = bitdepth_from_max(bitdepth_max);
const int rnd = (1 << shift) >> 1;
if (has_dconly && eob == 0) {
int dc = coeff[0];
coeff[0] = 0;
if (is_rect2)
dc = (dc * 2896 + 2048) >> 12;
dc = (dc * 2896 + 2048) >> 12;
dc = (dc + rnd) >> shift;
dc = (dc * 2896 + 2048) >> 12;
dc = (dc + 8) >> 4;
for (j = 0; j < h; j++)
for (i = 0; i < w; i++)
dst[i + j * PXSTRIDE(stride)] =
iclip_pixel(dst[i + j * PXSTRIDE(stride)] + dc);
return;
}
assert(eob > 0 || (eob == 0 && !has_dconly));
const ptrdiff_t sh = imin(h, 32), sw = imin(w, 32);
// Maximum value for h and w is 64
coef tmp[4096 /* w * h */], out[64 /* h */], in_mem[64 /* w */];
const int row_clip_max = (1 << (bitdepth + 8 - 1)) - 1;
const int col_clip_max = (1 << (imax(bitdepth + 6, 16) - 1)) -1;
if (w != sw) memset(&in_mem[sw], 0, (w - sw) * sizeof(*in_mem));
for (i = 0; i < sh; i++) {
if (w != sw || is_rect2) {
for (j = 0; j < sw; j++) {
in_mem[j] = coeff[i + j * sh];
if (is_rect2)
in_mem[j] = (in_mem[j] * 2896 + 2048) >> 12;
}
first_1d_fn(in_mem, 1, &tmp[i * w], 1, row_clip_max);
} else {
first_1d_fn(&coeff[i], sh, &tmp[i * w], 1, row_clip_max);
}
for (j = 0; j < w; j++)
#if BITDEPTH == 8
tmp[i * w + j] = (tmp[i * w + j] + rnd) >> shift;
#else
tmp[i * w + j] = iclip((tmp[i * w + j] + rnd) >> shift,
-col_clip_max - 1, col_clip_max);
#endif
}
if (h != sh) memset(&tmp[sh * w], 0, w * (h - sh) * sizeof(*tmp));
for (i = 0; i < w; i++) {
second_1d_fn(&tmp[i], w, out, 1, col_clip_max);
for (j = 0; j < h; j++)
dst[i + j * PXSTRIDE(stride)] =
iclip_pixel(dst[i + j * PXSTRIDE(stride)] +
((out[j] + 8) >> 4));
}
memset(coeff, 0, sizeof(*coeff) * sh * sw);
}
#define inv_txfm_fn(type1, type2, w, h, shift, has_dconly) \
static void \
inv_txfm_add_##type1##_##type2##_##w##x##h##_c(pixel *dst, \
const ptrdiff_t stride, \
coef *const coeff, \
const int eob \
HIGHBD_DECL_SUFFIX) \
{ \
inv_txfm_add_c(dst, stride, coeff, eob, w, h, shift, \
inv_##type1##w##_1d, inv_##type2##h##_1d, has_dconly \
HIGHBD_TAIL_SUFFIX); \
}
#define inv_txfm_fn64(w, h, shift) \
inv_txfm_fn(dct, dct, w, h, shift, 1)
#define inv_txfm_fn32(w, h, shift) \
inv_txfm_fn64(w, h, shift) \
inv_txfm_fn(identity, identity, w, h, shift, 0)
#define inv_txfm_fn16(w, h, shift) \
inv_txfm_fn32(w, h, shift) \
inv_txfm_fn(adst, dct, w, h, shift, 0) \
inv_txfm_fn(dct, adst, w, h, shift, 0) \
inv_txfm_fn(adst, adst, w, h, shift, 0) \
inv_txfm_fn(dct, flipadst, w, h, shift, 0) \
inv_txfm_fn(flipadst, dct, w, h, shift, 0) \
inv_txfm_fn(adst, flipadst, w, h, shift, 0) \
inv_txfm_fn(flipadst, adst, w, h, shift, 0) \
inv_txfm_fn(flipadst, flipadst, w, h, shift, 0) \
inv_txfm_fn(identity, dct, w, h, shift, 0) \
inv_txfm_fn(dct, identity, w, h, shift, 0) \
#define inv_txfm_fn84(w, h, shift) \
inv_txfm_fn16(w, h, shift) \
inv_txfm_fn(identity, flipadst, w, h, shift, 0) \
inv_txfm_fn(flipadst, identity, w, h, shift, 0) \
inv_txfm_fn(identity, adst, w, h, shift, 0) \
inv_txfm_fn(adst, identity, w, h, shift, 0) \
inv_txfm_fn84( 4, 4, 0)
inv_txfm_fn84( 4, 8, 0)
inv_txfm_fn84( 4, 16, 1)
inv_txfm_fn84( 8, 4, 0)
inv_txfm_fn84( 8, 8, 1)
inv_txfm_fn84( 8, 16, 1)
inv_txfm_fn32( 8, 32, 2)
inv_txfm_fn84(16, 4, 1)
inv_txfm_fn84(16, 8, 1)
inv_txfm_fn16(16, 16, 2)
inv_txfm_fn32(16, 32, 1)
inv_txfm_fn64(16, 64, 2)
inv_txfm_fn32(32, 8, 2)
inv_txfm_fn32(32, 16, 1)
inv_txfm_fn32(32, 32, 2)
inv_txfm_fn64(32, 64, 1)
inv_txfm_fn64(64, 16, 2)
inv_txfm_fn64(64, 32, 1)
inv_txfm_fn64(64, 64, 2)
static void inv_txfm_add_wht_wht_4x4_c(pixel *dst, const ptrdiff_t stride,
coef *const coeff, const int eob
HIGHBD_DECL_SUFFIX)
{
const int bitdepth = bitdepth_from_max(bitdepth_max);
const int col_clip_max = (1 << (imax(bitdepth + 6, 16) - 1)) -1;
const int col_clip_min = -col_clip_max - 1;
coef tmp[4 * 4], out[4];
for (int i = 0; i < 4; i++)
inv_wht4_1d(&coeff[i], 4, &tmp[i * 4], 1, 0);
for (int k = 0; k < 4 * 4; k++)
tmp[k] = iclip(tmp[k], col_clip_min, col_clip_max);
for (int i = 0; i < 4; i++) {
inv_wht4_1d(&tmp[i], 4, out, 1, 1);
for (int j = 0; j < 4; j++)
dst[i + j * PXSTRIDE(stride)] =
iclip_pixel(dst[i + j * PXSTRIDE(stride)] + out[j]);
}
memset(coeff, 0, sizeof(*coeff) * 4 * 4);
}
COLD void bitfn(dav1d_itx_dsp_init)(Dav1dInvTxfmDSPContext *const c) {
#define assign_itx_all_fn64(w, h, pfx) \
c->itxfm_add[pfx##TX_##w##X##h][DCT_DCT ] = \
inv_txfm_add_dct_dct_##w##x##h##_c
#define assign_itx_all_fn32(w, h, pfx) \
assign_itx_all_fn64(w, h, pfx); \
c->itxfm_add[pfx##TX_##w##X##h][IDTX] = \
inv_txfm_add_identity_identity_##w##x##h##_c
#define assign_itx_all_fn16(w, h, pfx) \
assign_itx_all_fn32(w, h, pfx); \
c->itxfm_add[pfx##TX_##w##X##h][DCT_ADST ] = \
inv_txfm_add_adst_dct_##w##x##h##_c; \
c->itxfm_add[pfx##TX_##w##X##h][ADST_DCT ] = \
inv_txfm_add_dct_adst_##w##x##h##_c; \
c->itxfm_add[pfx##TX_##w##X##h][ADST_ADST] = \
inv_txfm_add_adst_adst_##w##x##h##_c; \
c->itxfm_add[pfx##TX_##w##X##h][ADST_FLIPADST] = \
inv_txfm_add_flipadst_adst_##w##x##h##_c; \
c->itxfm_add[pfx##TX_##w##X##h][FLIPADST_ADST] = \
inv_txfm_add_adst_flipadst_##w##x##h##_c; \
c->itxfm_add[pfx##TX_##w##X##h][DCT_FLIPADST] = \
inv_txfm_add_flipadst_dct_##w##x##h##_c; \
c->itxfm_add[pfx##TX_##w##X##h][FLIPADST_DCT] = \
inv_txfm_add_dct_flipadst_##w##x##h##_c; \
c->itxfm_add[pfx##TX_##w##X##h][FLIPADST_FLIPADST] = \
inv_txfm_add_flipadst_flipadst_##w##x##h##_c; \
c->itxfm_add[pfx##TX_##w##X##h][H_DCT] = \
inv_txfm_add_dct_identity_##w##x##h##_c; \
c->itxfm_add[pfx##TX_##w##X##h][V_DCT] = \
inv_txfm_add_identity_dct_##w##x##h##_c
#define assign_itx_all_fn84(w, h, pfx) \
assign_itx_all_fn16(w, h, pfx); \
c->itxfm_add[pfx##TX_##w##X##h][H_FLIPADST] = \
inv_txfm_add_flipadst_identity_##w##x##h##_c; \
c->itxfm_add[pfx##TX_##w##X##h][V_FLIPADST] = \
inv_txfm_add_identity_flipadst_##w##x##h##_c; \
c->itxfm_add[pfx##TX_##w##X##h][H_ADST] = \
inv_txfm_add_adst_identity_##w##x##h##_c; \
c->itxfm_add[pfx##TX_##w##X##h][V_ADST] = \
inv_txfm_add_identity_adst_##w##x##h##_c; \
memset(c, 0, sizeof(*c)); /* Zero unused function pointer elements. */
c->itxfm_add[TX_4X4][WHT_WHT] = inv_txfm_add_wht_wht_4x4_c;
assign_itx_all_fn84( 4, 4, );
assign_itx_all_fn84( 4, 8, R);
assign_itx_all_fn84( 4, 16, R);
assign_itx_all_fn84( 8, 4, R);
assign_itx_all_fn84( 8, 8, );
assign_itx_all_fn84( 8, 16, R);
assign_itx_all_fn32( 8, 32, R);
assign_itx_all_fn84(16, 4, R);
assign_itx_all_fn84(16, 8, R);
assign_itx_all_fn16(16, 16, );
assign_itx_all_fn32(16, 32, R);
assign_itx_all_fn64(16, 64, R);
assign_itx_all_fn32(32, 8, R);
assign_itx_all_fn32(32, 16, R);
assign_itx_all_fn32(32, 32, );
assign_itx_all_fn64(32, 64, R);
assign_itx_all_fn64(64, 16, R);
assign_itx_all_fn64(64, 32, R);
assign_itx_all_fn64(64, 64, );
#if HAVE_ASM && ARCH_X86
bitfn(dav1d_itx_dsp_init_x86)(c);
#endif
}