e6790e30c5
A small gain (0.1 - 0.2%) with this experiment on derflr/hevcmr. The DST2 can be implemened very efficiently using sign flipping of odd indexed inputs, followed by DCT, followed by reversal of the output. This is how it is implemented in this patch. SIMD optimization is pending. Change-Id: Ic2fc211ce0e6b7c6702974d76d6573f55cc4da0e
5189 lines
178 KiB
C
5189 lines
178 KiB
C
/*
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* Copyright (c) 2010 The WebM project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include <math.h>
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#include "./vp9_rtcd.h"
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#include "vp9/common/vp9_systemdependent.h"
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#include "vp9/common/vp9_blockd.h"
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#include "vp9/common/vp9_idct.h"
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#if CONFIG_EXT_TX
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#define FLIPUD_PTR(dest, stride, size) do { \
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(dest) = (dest) + ((size) - 1) * (stride); \
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(stride) = - (stride); \
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} while (0)
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static void maybe_flip_strides(uint8_t **dst, int *dstride,
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tran_low_t **src, int *sstride,
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int tx_type, int size) {
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// Note that the transpose of src will be added to dst. In order to LR
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// flip the addends (in dst coordinates), we UD flip the src. To UD flip
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// the addends, we UD flip the dst.
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switch (tx_type) {
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case DCT_DCT:
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case ADST_DCT:
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case DCT_ADST:
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case ADST_ADST:
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break;
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case FLIPADST_DCT:
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case FLIPADST_ADST:
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// flip UD
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FLIPUD_PTR(*dst, *dstride, size);
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break;
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case DCT_FLIPADST:
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case ADST_FLIPADST:
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// flip LR
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FLIPUD_PTR(*src, *sstride, size);
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break;
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case FLIPADST_FLIPADST:
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// flip UD
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FLIPUD_PTR(*dst, *dstride, size);
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// flip LR
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FLIPUD_PTR(*src, *sstride, size);
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break;
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case DST_DST:
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case DCT_DST:
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case DST_DCT:
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case DST_ADST:
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case ADST_DST:
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break;
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case DST_FLIPADST:
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// flip LR
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FLIPUD_PTR(*src, *sstride, size);
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break;
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case FLIPADST_DST:
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// flip UD
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FLIPUD_PTR(*dst, *dstride, size);
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break;
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default:
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assert(0);
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break;
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}
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}
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#if CONFIG_VP9_HIGHBITDEPTH
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static void maybe_flip_strides16(uint16_t **dst, int *dstride,
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tran_low_t **src, int *sstride,
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int tx_type, int size) {
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// Note that the transpose of src will be added to dst. In order to LR
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// flip the addends (in dst coordinates), we UD flip the src. To UD flip
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// the addends, we UD flip the dst.
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switch (tx_type) {
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case DCT_DCT:
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case ADST_DCT:
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case DCT_ADST:
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case ADST_ADST:
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break;
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case FLIPADST_DCT:
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case FLIPADST_ADST:
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// flip UD
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FLIPUD_PTR(*dst, *dstride, size);
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break;
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case DCT_FLIPADST:
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case ADST_FLIPADST:
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// flip LR
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FLIPUD_PTR(*src, *sstride, size);
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break;
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case FLIPADST_FLIPADST:
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// flip UD
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FLIPUD_PTR(*dst, *dstride, size);
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// flip LR
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FLIPUD_PTR(*src, *sstride, size);
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break;
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case DST_DST:
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case DCT_DST:
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case DST_DCT:
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case DST_ADST:
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case ADST_DST:
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break;
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case DST_FLIPADST:
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// flip LR
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FLIPUD_PTR(*src, *sstride, size);
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break;
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case FLIPADST_DST:
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// flip UD
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FLIPUD_PTR(*dst, *dstride, size);
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break;
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default:
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assert(0);
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break;
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}
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}
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#endif // CONFIG_VP9_HIGHBITDEPTH
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#endif // CONFIG_EXT_TX
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void vp9_iwht4x4_16_add_c(const tran_low_t *input, uint8_t *dest, int stride) {
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/* 4-point reversible, orthonormal inverse Walsh-Hadamard in 3.5 adds,
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0.5 shifts per pixel. */
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int i;
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tran_low_t output[16];
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tran_high_t a1, b1, c1, d1, e1;
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const tran_low_t *ip = input;
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tran_low_t *op = output;
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for (i = 0; i < 4; i++) {
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a1 = ip[0] >> UNIT_QUANT_SHIFT;
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c1 = ip[1] >> UNIT_QUANT_SHIFT;
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d1 = ip[2] >> UNIT_QUANT_SHIFT;
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b1 = ip[3] >> UNIT_QUANT_SHIFT;
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a1 += c1;
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d1 -= b1;
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e1 = (a1 - d1) >> 1;
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b1 = e1 - b1;
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c1 = e1 - c1;
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a1 -= b1;
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d1 += c1;
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op[0] = WRAPLOW(a1, 8);
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op[1] = WRAPLOW(b1, 8);
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op[2] = WRAPLOW(c1, 8);
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op[3] = WRAPLOW(d1, 8);
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ip += 4;
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op += 4;
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}
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ip = output;
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for (i = 0; i < 4; i++) {
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a1 = ip[4 * 0];
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c1 = ip[4 * 1];
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d1 = ip[4 * 2];
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b1 = ip[4 * 3];
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a1 += c1;
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d1 -= b1;
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e1 = (a1 - d1) >> 1;
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b1 = e1 - b1;
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c1 = e1 - c1;
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a1 -= b1;
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d1 += c1;
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dest[stride * 0] = clip_pixel_add(dest[stride * 0], a1);
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dest[stride * 1] = clip_pixel_add(dest[stride * 1], b1);
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dest[stride * 2] = clip_pixel_add(dest[stride * 2], c1);
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dest[stride * 3] = clip_pixel_add(dest[stride * 3], d1);
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ip++;
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dest++;
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}
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}
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void vp9_iwht4x4_1_add_c(const tran_low_t *in, uint8_t *dest, int dest_stride) {
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int i;
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tran_high_t a1, e1;
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tran_low_t tmp[4];
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const tran_low_t *ip = in;
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tran_low_t *op = tmp;
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a1 = ip[0] >> UNIT_QUANT_SHIFT;
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e1 = a1 >> 1;
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a1 -= e1;
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op[0] = WRAPLOW(a1, 8);
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op[1] = op[2] = op[3] = WRAPLOW(e1, 8);
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ip = tmp;
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for (i = 0; i < 4; i++) {
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e1 = ip[0] >> 1;
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a1 = ip[0] - e1;
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dest[dest_stride * 0] = clip_pixel_add(dest[dest_stride * 0], a1);
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dest[dest_stride * 1] = clip_pixel_add(dest[dest_stride * 1], e1);
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dest[dest_stride * 2] = clip_pixel_add(dest[dest_stride * 2], e1);
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dest[dest_stride * 3] = clip_pixel_add(dest[dest_stride * 3], e1);
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ip++;
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dest++;
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}
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}
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static void idct4(const tran_low_t *input, tran_low_t *output) {
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tran_low_t step[4];
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tran_high_t temp1, temp2;
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// stage 1
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temp1 = (input[0] + input[2]) * cospi_16_64;
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temp2 = (input[0] - input[2]) * cospi_16_64;
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step[0] = WRAPLOW(dct_const_round_shift(temp1), 8);
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step[1] = WRAPLOW(dct_const_round_shift(temp2), 8);
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temp1 = input[1] * cospi_24_64 - input[3] * cospi_8_64;
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temp2 = input[1] * cospi_8_64 + input[3] * cospi_24_64;
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step[2] = WRAPLOW(dct_const_round_shift(temp1), 8);
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step[3] = WRAPLOW(dct_const_round_shift(temp2), 8);
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// stage 2
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output[0] = WRAPLOW(step[0] + step[3], 8);
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output[1] = WRAPLOW(step[1] + step[2], 8);
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output[2] = WRAPLOW(step[1] - step[2], 8);
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output[3] = WRAPLOW(step[0] - step[3], 8);
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}
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void vp9_idct4x4_16_add_c(const tran_low_t *input, uint8_t *dest, int stride) {
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tran_low_t out[4 * 4];
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tran_low_t *outptr = out;
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int i, j;
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tran_low_t temp_in[4], temp_out[4];
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// Rows
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for (i = 0; i < 4; ++i) {
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idct4(input, outptr);
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input += 4;
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outptr += 4;
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}
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// Columns
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for (i = 0; i < 4; ++i) {
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for (j = 0; j < 4; ++j)
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temp_in[j] = out[j * 4 + i];
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idct4(temp_in, temp_out);
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for (j = 0; j < 4; ++j) {
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dest[j * stride + i] = clip_pixel_add(dest[j * stride + i],
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ROUND_POWER_OF_TWO(temp_out[j], 4));
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}
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}
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}
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void vp9_idct4x4_1_add_c(const tran_low_t *input, uint8_t *dest,
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int dest_stride) {
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int i;
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tran_high_t a1;
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tran_low_t out = WRAPLOW(dct_const_round_shift(input[0] * cospi_16_64), 8);
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out = WRAPLOW(dct_const_round_shift(out * cospi_16_64), 8);
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a1 = ROUND_POWER_OF_TWO(out, 4);
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for (i = 0; i < 4; i++) {
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dest[0] = clip_pixel_add(dest[0], a1);
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dest[1] = clip_pixel_add(dest[1], a1);
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dest[2] = clip_pixel_add(dest[2], a1);
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dest[3] = clip_pixel_add(dest[3], a1);
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dest += dest_stride;
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}
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}
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static void idct8(const tran_low_t *input, tran_low_t *output) {
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tran_low_t step1[8], step2[8];
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tran_high_t temp1, temp2;
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// stage 1
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step1[0] = input[0];
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step1[2] = input[4];
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step1[1] = input[2];
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step1[3] = input[6];
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temp1 = input[1] * cospi_28_64 - input[7] * cospi_4_64;
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temp2 = input[1] * cospi_4_64 + input[7] * cospi_28_64;
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step1[4] = WRAPLOW(dct_const_round_shift(temp1), 8);
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step1[7] = WRAPLOW(dct_const_round_shift(temp2), 8);
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temp1 = input[5] * cospi_12_64 - input[3] * cospi_20_64;
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temp2 = input[5] * cospi_20_64 + input[3] * cospi_12_64;
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step1[5] = WRAPLOW(dct_const_round_shift(temp1), 8);
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step1[6] = WRAPLOW(dct_const_round_shift(temp2), 8);
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// stage 2 & stage 3 - even half
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idct4(step1, step1);
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// stage 2 - odd half
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step2[4] = WRAPLOW(step1[4] + step1[5], 8);
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step2[5] = WRAPLOW(step1[4] - step1[5], 8);
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step2[6] = WRAPLOW(-step1[6] + step1[7], 8);
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step2[7] = WRAPLOW(step1[6] + step1[7], 8);
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// stage 3 -odd half
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step1[4] = step2[4];
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temp1 = (step2[6] - step2[5]) * cospi_16_64;
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temp2 = (step2[5] + step2[6]) * cospi_16_64;
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step1[5] = WRAPLOW(dct_const_round_shift(temp1), 8);
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step1[6] = WRAPLOW(dct_const_round_shift(temp2), 8);
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step1[7] = step2[7];
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// stage 4
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output[0] = WRAPLOW(step1[0] + step1[7], 8);
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output[1] = WRAPLOW(step1[1] + step1[6], 8);
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output[2] = WRAPLOW(step1[2] + step1[5], 8);
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output[3] = WRAPLOW(step1[3] + step1[4], 8);
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output[4] = WRAPLOW(step1[3] - step1[4], 8);
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output[5] = WRAPLOW(step1[2] - step1[5], 8);
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output[6] = WRAPLOW(step1[1] - step1[6], 8);
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output[7] = WRAPLOW(step1[0] - step1[7], 8);
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}
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void vp9_idct8x8_64_add_c(const tran_low_t *input, uint8_t *dest, int stride) {
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tran_low_t out[8 * 8];
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tran_low_t *outptr = out;
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int i, j;
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tran_low_t temp_in[8], temp_out[8];
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// First transform rows
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for (i = 0; i < 8; ++i) {
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idct8(input, outptr);
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input += 8;
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outptr += 8;
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}
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// Then transform columns
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for (i = 0; i < 8; ++i) {
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for (j = 0; j < 8; ++j)
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temp_in[j] = out[j * 8 + i];
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idct8(temp_in, temp_out);
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for (j = 0; j < 8; ++j) {
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dest[j * stride + i] = clip_pixel_add(dest[j * stride + i],
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ROUND_POWER_OF_TWO(temp_out[j], 5));
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}
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}
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}
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void vp9_idct8x8_1_add_c(const tran_low_t *input, uint8_t *dest, int stride) {
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int i, j;
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tran_high_t a1;
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tran_low_t out = WRAPLOW(dct_const_round_shift(input[0] * cospi_16_64), 8);
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out = WRAPLOW(dct_const_round_shift(out * cospi_16_64), 8);
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a1 = ROUND_POWER_OF_TWO(out, 5);
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for (j = 0; j < 8; ++j) {
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for (i = 0; i < 8; ++i)
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dest[i] = clip_pixel_add(dest[i], a1);
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dest += stride;
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}
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}
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static void iadst4(const tran_low_t *input, tran_low_t *output) {
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tran_high_t s0, s1, s2, s3, s4, s5, s6, s7;
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tran_low_t x0 = input[0];
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tran_low_t x1 = input[1];
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tran_low_t x2 = input[2];
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tran_low_t x3 = input[3];
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if (!(x0 | x1 | x2 | x3)) {
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output[0] = output[1] = output[2] = output[3] = 0;
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return;
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}
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s0 = sinpi_1_9 * x0;
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s1 = sinpi_2_9 * x0;
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s2 = sinpi_3_9 * x1;
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s3 = sinpi_4_9 * x2;
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s4 = sinpi_1_9 * x2;
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s5 = sinpi_2_9 * x3;
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s6 = sinpi_4_9 * x3;
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s7 = x0 - x2 + x3;
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s0 = s0 + s3 + s5;
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s1 = s1 - s4 - s6;
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s3 = s2;
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s2 = sinpi_3_9 * s7;
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// 1-D transform scaling factor is sqrt(2).
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// The overall dynamic range is 14b (input) + 14b (multiplication scaling)
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// + 1b (addition) = 29b.
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// Hence the output bit depth is 15b.
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output[0] = WRAPLOW(dct_const_round_shift(s0 + s3), 8);
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output[1] = WRAPLOW(dct_const_round_shift(s1 + s3), 8);
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output[2] = WRAPLOW(dct_const_round_shift(s2), 8);
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output[3] = WRAPLOW(dct_const_round_shift(s0 + s1 - s3), 8);
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}
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#if CONFIG_EXT_TX
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void idst4(const tran_low_t *input, tran_low_t *output) {
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#if USE_DST2
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// vp9_igentx4(input, output, Tx4);
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tran_low_t step[4];
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tran_high_t temp1, temp2;
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// stage 1
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temp1 = (input[3] + input[1]) * cospi_16_64;
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temp2 = (input[3] - input[1]) * cospi_16_64;
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step[0] = WRAPLOW(dct_const_round_shift(temp1), 8);
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step[1] = WRAPLOW(dct_const_round_shift(temp2), 8);
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temp1 = input[2] * cospi_24_64 - input[0] * cospi_8_64;
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temp2 = input[2] * cospi_8_64 + input[0] * cospi_24_64;
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step[2] = WRAPLOW(dct_const_round_shift(temp1), 8);
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step[3] = WRAPLOW(dct_const_round_shift(temp2), 8);
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// stage 2
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output[0] = WRAPLOW(step[0] + step[3], 8);
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output[1] = WRAPLOW(-step[1] - step[2], 8);
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output[2] = WRAPLOW(step[1] - step[2], 8);
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output[3] = WRAPLOW(step[3] - step[0], 8);
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#else
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// {sin(pi/5), sin(pi*2/5)} * sqrt(2/5) * sqrt(2)
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static const int32_t sinvalue_lookup[] = {
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141124871, 228344838,
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};
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int64_t sum;
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int64_t s03 = (input[0] + input[3]);
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int64_t d03 = (input[0] - input[3]);
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int64_t s12 = (input[1] + input[2]);
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int64_t d12 = (input[1] - input[2]);
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sum = s03 * sinvalue_lookup[0] + s12 * sinvalue_lookup[1];
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output[0] = WRAPLOW(ROUND_POWER_OF_TWO(sum, (2 * DCT_CONST_BITS)), 8);
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sum = d03 * sinvalue_lookup[1] + d12 * sinvalue_lookup[0];
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output[1] = WRAPLOW(ROUND_POWER_OF_TWO(sum, (2 * DCT_CONST_BITS)), 8);
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sum = s03 * sinvalue_lookup[1] - s12 * sinvalue_lookup[0];
|
|
output[2] = WRAPLOW(ROUND_POWER_OF_TWO(sum, (2 * DCT_CONST_BITS)), 8);
|
|
sum = d03 * sinvalue_lookup[0] - d12 * sinvalue_lookup[1];
|
|
output[3] = WRAPLOW(ROUND_POWER_OF_TWO(sum, (2 * DCT_CONST_BITS)), 8);
|
|
#endif
|
|
}
|
|
|
|
#if CONFIG_VP9_HIGHBITDEPTH
|
|
void highbd_idst4(const tran_low_t *input, tran_low_t *output, int bd) {
|
|
#if USE_DST2
|
|
// vp9_highbd_igentx4(input, output, bd, Tx4);
|
|
tran_low_t step[4];
|
|
tran_high_t temp1, temp2;
|
|
(void) bd;
|
|
// stage 1
|
|
temp1 = (input[3] + input[1]) * cospi_16_64;
|
|
temp2 = (input[3] - input[1]) * cospi_16_64;
|
|
step[0] = WRAPLOW(dct_const_round_shift(temp1), bd);
|
|
step[1] = WRAPLOW(dct_const_round_shift(temp2), bd);
|
|
temp1 = input[2] * cospi_24_64 - input[0] * cospi_8_64;
|
|
temp2 = input[2] * cospi_8_64 + input[0] * cospi_24_64;
|
|
step[2] = WRAPLOW(dct_const_round_shift(temp1), bd);
|
|
step[3] = WRAPLOW(dct_const_round_shift(temp2), bd);
|
|
|
|
// stage 2
|
|
output[0] = WRAPLOW(step[0] + step[3], bd);
|
|
output[1] = WRAPLOW(-step[1] - step[2], bd);
|
|
output[2] = WRAPLOW(step[1] - step[2], bd);
|
|
output[3] = WRAPLOW(step[3] - step[0], bd);
|
|
#else
|
|
// {sin(pi/5), sin(pi*2/5)} * sqrt(2/5) * sqrt(2)
|
|
static const int32_t sinvalue_lookup[] = {
|
|
141124871, 228344838,
|
|
};
|
|
int64_t sum;
|
|
int64_t s03 = (input[0] + input[3]);
|
|
int64_t d03 = (input[0] - input[3]);
|
|
int64_t s12 = (input[1] + input[2]);
|
|
int64_t d12 = (input[1] - input[2]);
|
|
(void) bd;
|
|
|
|
sum = s03 * sinvalue_lookup[0] + s12 * sinvalue_lookup[1];
|
|
output[0] = WRAPLOW(ROUND_POWER_OF_TWO(sum, (2 * DCT_CONST_BITS)), bd);
|
|
sum = d03 * sinvalue_lookup[1] + d12 * sinvalue_lookup[0];
|
|
output[1] = WRAPLOW(ROUND_POWER_OF_TWO(sum, (2 * DCT_CONST_BITS)), bd);
|
|
sum = s03 * sinvalue_lookup[1] - s12 * sinvalue_lookup[0];
|
|
output[2] = WRAPLOW(ROUND_POWER_OF_TWO(sum, (2 * DCT_CONST_BITS)), bd);
|
|
sum = d03 * sinvalue_lookup[0] - d12 * sinvalue_lookup[1];
|
|
output[3] = WRAPLOW(ROUND_POWER_OF_TWO(sum, (2 * DCT_CONST_BITS)), bd);
|
|
#endif
|
|
}
|
|
#endif // CONFIG_VP9_HIGHBITDEPTH
|
|
#endif // CONFIG_EXT_TX
|
|
|
|
void vp9_iht4x4_16_add_c(const tran_low_t *input, uint8_t *dest, int stride,
|
|
int tx_type) {
|
|
const transform_2d IHT_4[] = {
|
|
{ idct4, idct4 }, // DCT_DCT = 0
|
|
{ iadst4, idct4 }, // ADST_DCT = 1
|
|
{ idct4, iadst4 }, // DCT_ADST = 2
|
|
{ iadst4, iadst4 }, // ADST_ADST = 3
|
|
#if CONFIG_EXT_TX
|
|
{ iadst4, idct4 }, // FLIPADST_DCT = 4
|
|
{ idct4, iadst4 }, // DCT_FLIPADST = 5
|
|
{ iadst4, iadst4 }, // FLIPADST_FLIPADST = 6
|
|
{ iadst4, iadst4 }, // ADST_FLIPADST = 7
|
|
{ iadst4, iadst4 }, // FLIPADST_ADST = 8
|
|
{ idst4, idst4 }, // DST_DST = 9
|
|
{ idst4, idct4 }, // DST_DCT = 10
|
|
{ idct4, idst4 }, // DCT_DST = 11
|
|
{ idst4, iadst4 }, // DST_ADST = 12
|
|
{ iadst4, idst4 }, // ADST_DST = 13
|
|
{ idst4, iadst4 }, // DST_FLIPADST = 14
|
|
{ iadst4, idst4 }, // FLIPADST_DST = 15
|
|
#endif // CONFIG_EXT_TX
|
|
};
|
|
|
|
int i, j;
|
|
tran_low_t tmp;
|
|
tran_low_t out[4][4];
|
|
tran_low_t *outp = &out[0][0];
|
|
int outstride = 4;
|
|
|
|
// inverse transform row vectors
|
|
for (i = 0; i < 4; ++i) {
|
|
IHT_4[tx_type].rows(input, out[i]);
|
|
input += 4;
|
|
}
|
|
|
|
// transpose
|
|
for (i = 1 ; i < 4; i++) {
|
|
for (j = 0; j < i; j++) {
|
|
tmp = out[i][j];
|
|
out[i][j] = out[j][i];
|
|
out[j][i] = tmp;
|
|
}
|
|
}
|
|
|
|
// inverse transform column vectors
|
|
for (i = 0; i < 4; ++i) {
|
|
IHT_4[tx_type].cols(out[i], out[i]);
|
|
}
|
|
|
|
#if CONFIG_EXT_TX
|
|
maybe_flip_strides(&dest, &stride, &outp, &outstride, tx_type, 4);
|
|
#endif
|
|
|
|
// Sum with the destination
|
|
for (i = 0; i < 4; ++i) {
|
|
for (j = 0; j < 4; ++j) {
|
|
int d = i * stride + j;
|
|
int s = j * outstride + i;
|
|
dest[d] = clip_pixel_add(dest[d], ROUND_POWER_OF_TWO(outp[s], 4));
|
|
}
|
|
}
|
|
}
|
|
|
|
static void iadst8(const tran_low_t *input, tran_low_t *output) {
|
|
int s0, s1, s2, s3, s4, s5, s6, s7;
|
|
|
|
tran_high_t x0 = input[7];
|
|
tran_high_t x1 = input[0];
|
|
tran_high_t x2 = input[5];
|
|
tran_high_t x3 = input[2];
|
|
tran_high_t x4 = input[3];
|
|
tran_high_t x5 = input[4];
|
|
tran_high_t x6 = input[1];
|
|
tran_high_t x7 = input[6];
|
|
|
|
if (!(x0 | x1 | x2 | x3 | x4 | x5 | x6 | x7)) {
|
|
output[0] = output[1] = output[2] = output[3] = output[4]
|
|
= output[5] = output[6] = output[7] = 0;
|
|
return;
|
|
}
|
|
|
|
// stage 1
|
|
s0 = cospi_2_64 * x0 + cospi_30_64 * x1;
|
|
s1 = cospi_30_64 * x0 - cospi_2_64 * x1;
|
|
s2 = cospi_10_64 * x2 + cospi_22_64 * x3;
|
|
s3 = cospi_22_64 * x2 - cospi_10_64 * x3;
|
|
s4 = cospi_18_64 * x4 + cospi_14_64 * x5;
|
|
s5 = cospi_14_64 * x4 - cospi_18_64 * x5;
|
|
s6 = cospi_26_64 * x6 + cospi_6_64 * x7;
|
|
s7 = cospi_6_64 * x6 - cospi_26_64 * x7;
|
|
|
|
x0 = WRAPLOW(dct_const_round_shift(s0 + s4), 8);
|
|
x1 = WRAPLOW(dct_const_round_shift(s1 + s5), 8);
|
|
x2 = WRAPLOW(dct_const_round_shift(s2 + s6), 8);
|
|
x3 = WRAPLOW(dct_const_round_shift(s3 + s7), 8);
|
|
x4 = WRAPLOW(dct_const_round_shift(s0 - s4), 8);
|
|
x5 = WRAPLOW(dct_const_round_shift(s1 - s5), 8);
|
|
x6 = WRAPLOW(dct_const_round_shift(s2 - s6), 8);
|
|
x7 = WRAPLOW(dct_const_round_shift(s3 - s7), 8);
|
|
|
|
// stage 2
|
|
s0 = x0;
|
|
s1 = x1;
|
|
s2 = x2;
|
|
s3 = x3;
|
|
s4 = cospi_8_64 * x4 + cospi_24_64 * x5;
|
|
s5 = cospi_24_64 * x4 - cospi_8_64 * x5;
|
|
s6 = -cospi_24_64 * x6 + cospi_8_64 * x7;
|
|
s7 = cospi_8_64 * x6 + cospi_24_64 * x7;
|
|
|
|
x0 = WRAPLOW(s0 + s2, 8);
|
|
x1 = WRAPLOW(s1 + s3, 8);
|
|
x2 = WRAPLOW(s0 - s2, 8);
|
|
x3 = WRAPLOW(s1 - s3, 8);
|
|
x4 = WRAPLOW(dct_const_round_shift(s4 + s6), 8);
|
|
x5 = WRAPLOW(dct_const_round_shift(s5 + s7), 8);
|
|
x6 = WRAPLOW(dct_const_round_shift(s4 - s6), 8);
|
|
x7 = WRAPLOW(dct_const_round_shift(s5 - s7), 8);
|
|
|
|
// stage 3
|
|
s2 = cospi_16_64 * (x2 + x3);
|
|
s3 = cospi_16_64 * (x2 - x3);
|
|
s6 = cospi_16_64 * (x6 + x7);
|
|
s7 = cospi_16_64 * (x6 - x7);
|
|
|
|
x2 = WRAPLOW(dct_const_round_shift(s2), 8);
|
|
x3 = WRAPLOW(dct_const_round_shift(s3), 8);
|
|
x6 = WRAPLOW(dct_const_round_shift(s6), 8);
|
|
x7 = WRAPLOW(dct_const_round_shift(s7), 8);
|
|
|
|
output[0] = WRAPLOW(x0, 8);
|
|
output[1] = WRAPLOW(-x4, 8);
|
|
output[2] = WRAPLOW(x6, 8);
|
|
output[3] = WRAPLOW(-x2, 8);
|
|
output[4] = WRAPLOW(x3, 8);
|
|
output[5] = WRAPLOW(-x7, 8);
|
|
output[6] = WRAPLOW(x5, 8);
|
|
output[7] = WRAPLOW(-x1, 8);
|
|
}
|
|
|
|
#if CONFIG_EXT_TX
|
|
void idst8(const tran_low_t *input, tran_low_t *output) {
|
|
#if USE_DST2
|
|
// vp9_igentx8(input, output, Tx8);
|
|
tran_low_t step1[8], step2[8];
|
|
tran_high_t temp1, temp2;
|
|
// stage 1
|
|
step1[0] = input[7];
|
|
step1[2] = input[3];
|
|
step1[1] = input[5];
|
|
step1[3] = input[1];
|
|
temp1 = input[6] * cospi_28_64 - input[0] * cospi_4_64;
|
|
temp2 = input[6] * cospi_4_64 + input[0] * cospi_28_64;
|
|
step1[4] = WRAPLOW(dct_const_round_shift(temp1), 8);
|
|
step1[7] = WRAPLOW(dct_const_round_shift(temp2), 8);
|
|
temp1 = input[2] * cospi_12_64 - input[4] * cospi_20_64;
|
|
temp2 = input[2] * cospi_20_64 + input[4] * cospi_12_64;
|
|
step1[5] = WRAPLOW(dct_const_round_shift(temp1), 8);
|
|
step1[6] = WRAPLOW(dct_const_round_shift(temp2), 8);
|
|
|
|
// stage 2 & stage 3 - even half
|
|
idct4(step1, step1);
|
|
|
|
// stage 2 - odd half
|
|
step2[4] = WRAPLOW(step1[4] + step1[5], 8);
|
|
step2[5] = WRAPLOW(step1[4] - step1[5], 8);
|
|
step2[6] = WRAPLOW(-step1[6] + step1[7], 8);
|
|
step2[7] = WRAPLOW(step1[6] + step1[7], 8);
|
|
|
|
// stage 3 -odd half
|
|
step1[4] = step2[4];
|
|
temp1 = (step2[6] - step2[5]) * cospi_16_64;
|
|
temp2 = (step2[5] + step2[6]) * cospi_16_64;
|
|
step1[5] = WRAPLOW(dct_const_round_shift(temp1), 8);
|
|
step1[6] = WRAPLOW(dct_const_round_shift(temp2), 8);
|
|
step1[7] = step2[7];
|
|
|
|
// stage 4
|
|
output[0] = WRAPLOW(step1[0] + step1[7], 8);
|
|
output[1] = WRAPLOW(-step1[1] - step1[6], 8);
|
|
output[2] = WRAPLOW(step1[2] + step1[5], 8);
|
|
output[3] = WRAPLOW(-step1[3] - step1[4], 8);
|
|
output[4] = WRAPLOW(step1[3] - step1[4], 8);
|
|
output[5] = WRAPLOW(-step1[2] + step1[5], 8);
|
|
output[6] = WRAPLOW(step1[1] - step1[6], 8);
|
|
output[7] = WRAPLOW(-step1[0] + step1[7], 8);
|
|
#else
|
|
// {sin(pi/9), sin(pi*2/9), ..., sin(pi*4/9)} * sqrt(2/9) * 2
|
|
static const int32_t sinvalue_lookup[] = {
|
|
86559612, 162678858, 219176632, 249238470
|
|
};
|
|
int64_t sum;
|
|
int64_t s07 = (input[0] + input[7]);
|
|
int64_t d07 = (input[0] - input[7]);
|
|
int64_t s16 = (input[1] + input[6]);
|
|
int64_t d16 = (input[1] - input[6]);
|
|
int64_t s25 = (input[2] + input[5]);
|
|
int64_t d25 = (input[2] - input[5]);
|
|
int64_t s34 = (input[3] + input[4]);
|
|
int64_t d34 = (input[3] - input[4]);
|
|
sum = s07 * sinvalue_lookup[0] + s16 * sinvalue_lookup[1] +
|
|
s25 * sinvalue_lookup[2] + s34 * sinvalue_lookup[3];
|
|
output[0] = WRAPLOW(ROUND_POWER_OF_TWO(sum, (2 * DCT_CONST_BITS)), 8);
|
|
sum = d07 * sinvalue_lookup[1] + d16 * sinvalue_lookup[3] +
|
|
d25 * sinvalue_lookup[2] + d34 * sinvalue_lookup[0];
|
|
output[1] = WRAPLOW(ROUND_POWER_OF_TWO(sum, (2 * DCT_CONST_BITS)), 8);
|
|
sum = (s07 + s16 - s34)* sinvalue_lookup[2];
|
|
output[2] = WRAPLOW(ROUND_POWER_OF_TWO(sum, (2 * DCT_CONST_BITS)), 8);
|
|
sum = d07 * sinvalue_lookup[3] + d16 * sinvalue_lookup[0] -
|
|
d25 * sinvalue_lookup[2] - d34 * sinvalue_lookup[1];
|
|
output[3] = WRAPLOW(ROUND_POWER_OF_TWO(sum, (2 * DCT_CONST_BITS)), 8);
|
|
sum = s07 * sinvalue_lookup[3] - s16 * sinvalue_lookup[0] -
|
|
s25 * sinvalue_lookup[2] + s34 * sinvalue_lookup[1];
|
|
output[4] = WRAPLOW(ROUND_POWER_OF_TWO(sum, (2 * DCT_CONST_BITS)), 8);
|
|
sum = (d07 - d16 + d34)* sinvalue_lookup[2];
|
|
output[5] = WRAPLOW(ROUND_POWER_OF_TWO(sum, (2 * DCT_CONST_BITS)), 8);
|
|
sum = s07 * sinvalue_lookup[1] - s16 * sinvalue_lookup[3] +
|
|
s25 * sinvalue_lookup[2] - s34 * sinvalue_lookup[0];
|
|
output[6] = WRAPLOW(ROUND_POWER_OF_TWO(sum, (2 * DCT_CONST_BITS)), 8);
|
|
sum = d07 * sinvalue_lookup[0] - d16 * sinvalue_lookup[1] +
|
|
d25 * sinvalue_lookup[2] - d34 * sinvalue_lookup[3];
|
|
output[7] = WRAPLOW(ROUND_POWER_OF_TWO(sum, (2 * DCT_CONST_BITS)), 8);
|
|
#endif
|
|
}
|
|
|
|
#if CONFIG_VP9_HIGHBITDEPTH
|
|
void highbd_idst8(const tran_low_t *input, tran_low_t *output, int bd) {
|
|
#if USE_DST2
|
|
// vp9_highbd_igentx8(input, output, bd, Tx8);
|
|
tran_low_t step1[8], step2[8];
|
|
tran_high_t temp1, temp2;
|
|
(void) bd;
|
|
// stage 1
|
|
step1[0] = input[7];
|
|
step1[2] = input[3];
|
|
step1[1] = input[5];
|
|
step1[3] = input[1];
|
|
temp1 = input[6] * cospi_28_64 - input[0] * cospi_4_64;
|
|
temp2 = input[6] * cospi_4_64 + input[0] * cospi_28_64;
|
|
step1[4] = WRAPLOW(dct_const_round_shift(temp1), bd);
|
|
step1[7] = WRAPLOW(dct_const_round_shift(temp2), bd);
|
|
temp1 = input[2] * cospi_12_64 - input[4] * cospi_20_64;
|
|
temp2 = input[2] * cospi_20_64 + input[4] * cospi_12_64;
|
|
step1[5] = WRAPLOW(dct_const_round_shift(temp1), bd);
|
|
step1[6] = WRAPLOW(dct_const_round_shift(temp2), bd);
|
|
|
|
// stage 2 & stage 3 - even half
|
|
idct4(step1, step1);
|
|
|
|
// stage 2 - odd half
|
|
step2[4] = WRAPLOW(step1[4] + step1[5], bd);
|
|
step2[5] = WRAPLOW(step1[4] - step1[5], bd);
|
|
step2[6] = WRAPLOW(-step1[6] + step1[7], bd);
|
|
step2[7] = WRAPLOW(step1[6] + step1[7], bd);
|
|
|
|
// stage 3 -odd half
|
|
step1[4] = step2[4];
|
|
temp1 = (step2[6] - step2[5]) * cospi_16_64;
|
|
temp2 = (step2[5] + step2[6]) * cospi_16_64;
|
|
step1[5] = WRAPLOW(dct_const_round_shift(temp1), bd);
|
|
step1[6] = WRAPLOW(dct_const_round_shift(temp2), bd);
|
|
step1[7] = step2[7];
|
|
|
|
// stage 4
|
|
output[0] = WRAPLOW(step1[0] + step1[7], bd);
|
|
output[1] = WRAPLOW(-step1[1] - step1[6], bd);
|
|
output[2] = WRAPLOW(step1[2] + step1[5], bd);
|
|
output[3] = WRAPLOW(-step1[3] - step1[4], bd);
|
|
output[4] = WRAPLOW(step1[3] - step1[4], bd);
|
|
output[5] = WRAPLOW(-step1[2] + step1[5], bd);
|
|
output[6] = WRAPLOW(step1[1] - step1[6], bd);
|
|
output[7] = WRAPLOW(-step1[0] + step1[7], bd);
|
|
#else
|
|
// {sin(pi/9), sin(pi*2/9), ..., sin(pi*4/9)} * sqrt(2/9) * 2
|
|
static const int32_t sinvalue_lookup[] = {
|
|
86559612, 162678858, 219176632, 249238470
|
|
};
|
|
int64_t sum;
|
|
int64_t s07 = (input[0] + input[7]);
|
|
int64_t d07 = (input[0] - input[7]);
|
|
int64_t s16 = (input[1] + input[6]);
|
|
int64_t d16 = (input[1] - input[6]);
|
|
int64_t s25 = (input[2] + input[5]);
|
|
int64_t d25 = (input[2] - input[5]);
|
|
int64_t s34 = (input[3] + input[4]);
|
|
int64_t d34 = (input[3] - input[4]);
|
|
(void) bd;
|
|
|
|
sum = s07 * sinvalue_lookup[0] + s16 * sinvalue_lookup[1] +
|
|
s25 * sinvalue_lookup[2] + s34 * sinvalue_lookup[3];
|
|
output[0] = WRAPLOW(ROUND_POWER_OF_TWO(sum, (2 * DCT_CONST_BITS)), bd);
|
|
sum = d07 * sinvalue_lookup[1] + d16 * sinvalue_lookup[3] +
|
|
d25 * sinvalue_lookup[2] + d34 * sinvalue_lookup[0];
|
|
output[1] = WRAPLOW(ROUND_POWER_OF_TWO(sum, (2 * DCT_CONST_BITS)), bd);
|
|
sum = (s07 + s16 - s34)* sinvalue_lookup[2];
|
|
output[2] = WRAPLOW(ROUND_POWER_OF_TWO(sum, (2 * DCT_CONST_BITS)), bd);
|
|
sum = d07 * sinvalue_lookup[3] + d16 * sinvalue_lookup[0] -
|
|
d25 * sinvalue_lookup[2] - d34 * sinvalue_lookup[1];
|
|
output[3] = WRAPLOW(ROUND_POWER_OF_TWO(sum, (2 * DCT_CONST_BITS)), bd);
|
|
sum = s07 * sinvalue_lookup[3] - s16 * sinvalue_lookup[0] -
|
|
s25 * sinvalue_lookup[2] + s34 * sinvalue_lookup[1];
|
|
output[4] = WRAPLOW(ROUND_POWER_OF_TWO(sum, (2 * DCT_CONST_BITS)), bd);
|
|
sum = (d07 - d16 + d34)* sinvalue_lookup[2];
|
|
output[5] = WRAPLOW(ROUND_POWER_OF_TWO(sum, (2 * DCT_CONST_BITS)), bd);
|
|
sum = s07 * sinvalue_lookup[1] - s16 * sinvalue_lookup[3] +
|
|
s25 * sinvalue_lookup[2] - s34 * sinvalue_lookup[0];
|
|
output[6] = WRAPLOW(ROUND_POWER_OF_TWO(sum, (2 * DCT_CONST_BITS)), bd);
|
|
sum = d07 * sinvalue_lookup[0] - d16 * sinvalue_lookup[1] +
|
|
d25 * sinvalue_lookup[2] - d34 * sinvalue_lookup[3];
|
|
output[7] = WRAPLOW(ROUND_POWER_OF_TWO(sum, (2 * DCT_CONST_BITS)), bd);
|
|
#endif
|
|
}
|
|
#endif // CONFIG_VP9_HIGHBITDEPTH
|
|
#endif // CONFIG_EXT_TX
|
|
|
|
static const transform_2d IHT_8[] = {
|
|
{ idct8, idct8 }, // DCT_DCT = 0
|
|
{ iadst8, idct8 }, // ADST_DCT = 1
|
|
{ idct8, iadst8 }, // DCT_ADST = 2
|
|
{ iadst8, iadst8 }, // ADST_ADST = 3
|
|
#if CONFIG_EXT_TX
|
|
{ iadst8, idct8 }, // FLIPADST_DCT = 4
|
|
{ idct8, iadst8 }, // DCT_FLIPADST = 5
|
|
{ iadst8, iadst8 }, // FLIPADST_FLIPADST = 6
|
|
{ iadst8, iadst8 }, // ADST_FLIPADST = 7
|
|
{ iadst8, iadst8 }, // FLIPADST_ADST = 8
|
|
{ idst8, idst8 }, // DST_DST = 9
|
|
{ idst8, idct8 }, // DST_DCT = 10
|
|
{ idct8, idst8 }, // DCT_DST = 11
|
|
{ idst8, iadst8 }, // DST_ADST = 12
|
|
{ iadst8, idst8 }, // ADST_DST = 13
|
|
{ idst8, iadst8 }, // DST_FLIPADST = 14
|
|
{ iadst8, idst8 }, // FLIPADST_DST = 15
|
|
#endif // CONFIG_EXT_TX
|
|
};
|
|
|
|
void vp9_iht8x8_64_add_c(const tran_low_t *input, uint8_t *dest, int stride,
|
|
int tx_type) {
|
|
int i, j;
|
|
tran_low_t tmp;
|
|
tran_low_t out[8][8];
|
|
tran_low_t *outp = &out[0][0];
|
|
int outstride = 8;
|
|
|
|
// inverse transform row vectors
|
|
for (i = 0; i < 8; ++i) {
|
|
IHT_8[tx_type].rows(input, out[i]);
|
|
input += 8;
|
|
}
|
|
|
|
// transpose
|
|
for (i = 1 ; i < 8; i++) {
|
|
for (j = 0; j < i; j++) {
|
|
tmp = out[i][j];
|
|
out[i][j] = out[j][i];
|
|
out[j][i] = tmp;
|
|
}
|
|
}
|
|
|
|
// inverse transform column vectors
|
|
for (i = 0; i < 8; ++i) {
|
|
IHT_8[tx_type].cols(out[i], out[i]);
|
|
}
|
|
|
|
#if CONFIG_EXT_TX
|
|
maybe_flip_strides(&dest, &stride, &outp, &outstride, tx_type, 8);
|
|
#endif
|
|
|
|
// Sum with the destination
|
|
for (i = 0; i < 8; ++i) {
|
|
for (j = 0; j < 8; ++j) {
|
|
int d = i * stride + j;
|
|
int s = j * outstride + i;
|
|
dest[d] = clip_pixel_add(dest[d], ROUND_POWER_OF_TWO(outp[s], 5));
|
|
}
|
|
}
|
|
}
|
|
|
|
void vp9_idct8x8_12_add_c(const tran_low_t *input, uint8_t *dest, int stride) {
|
|
tran_low_t out[8 * 8] = { 0 };
|
|
tran_low_t *outptr = out;
|
|
int i, j;
|
|
tran_low_t temp_in[8], temp_out[8];
|
|
|
|
// First transform rows
|
|
// only first 4 row has non-zero coefs
|
|
for (i = 0; i < 4; ++i) {
|
|
idct8(input, outptr);
|
|
input += 8;
|
|
outptr += 8;
|
|
}
|
|
|
|
// Then transform columns
|
|
for (i = 0; i < 8; ++i) {
|
|
for (j = 0; j < 8; ++j)
|
|
temp_in[j] = out[j * 8 + i];
|
|
idct8(temp_in, temp_out);
|
|
for (j = 0; j < 8; ++j) {
|
|
dest[j * stride + i] = clip_pixel_add(dest[j * stride + i],
|
|
ROUND_POWER_OF_TWO(temp_out[j], 5));
|
|
}
|
|
}
|
|
}
|
|
|
|
static void idct16(const tran_low_t *input, tran_low_t *output) {
|
|
tran_low_t step1[16], step2[16];
|
|
tran_high_t temp1, temp2;
|
|
|
|
// stage 1
|
|
step1[0] = input[0/2];
|
|
step1[1] = input[16/2];
|
|
step1[2] = input[8/2];
|
|
step1[3] = input[24/2];
|
|
step1[4] = input[4/2];
|
|
step1[5] = input[20/2];
|
|
step1[6] = input[12/2];
|
|
step1[7] = input[28/2];
|
|
step1[8] = input[2/2];
|
|
step1[9] = input[18/2];
|
|
step1[10] = input[10/2];
|
|
step1[11] = input[26/2];
|
|
step1[12] = input[6/2];
|
|
step1[13] = input[22/2];
|
|
step1[14] = input[14/2];
|
|
step1[15] = input[30/2];
|
|
|
|
// stage 2
|
|
step2[0] = step1[0];
|
|
step2[1] = step1[1];
|
|
step2[2] = step1[2];
|
|
step2[3] = step1[3];
|
|
step2[4] = step1[4];
|
|
step2[5] = step1[5];
|
|
step2[6] = step1[6];
|
|
step2[7] = step1[7];
|
|
|
|
temp1 = step1[8] * cospi_30_64 - step1[15] * cospi_2_64;
|
|
temp2 = step1[8] * cospi_2_64 + step1[15] * cospi_30_64;
|
|
step2[8] = WRAPLOW(dct_const_round_shift(temp1), 8);
|
|
step2[15] = WRAPLOW(dct_const_round_shift(temp2), 8);
|
|
|
|
temp1 = step1[9] * cospi_14_64 - step1[14] * cospi_18_64;
|
|
temp2 = step1[9] * cospi_18_64 + step1[14] * cospi_14_64;
|
|
step2[9] = WRAPLOW(dct_const_round_shift(temp1), 8);
|
|
step2[14] = WRAPLOW(dct_const_round_shift(temp2), 8);
|
|
|
|
temp1 = step1[10] * cospi_22_64 - step1[13] * cospi_10_64;
|
|
temp2 = step1[10] * cospi_10_64 + step1[13] * cospi_22_64;
|
|
step2[10] = WRAPLOW(dct_const_round_shift(temp1), 8);
|
|
step2[13] = WRAPLOW(dct_const_round_shift(temp2), 8);
|
|
|
|
temp1 = step1[11] * cospi_6_64 - step1[12] * cospi_26_64;
|
|
temp2 = step1[11] * cospi_26_64 + step1[12] * cospi_6_64;
|
|
step2[11] = WRAPLOW(dct_const_round_shift(temp1), 8);
|
|
step2[12] = WRAPLOW(dct_const_round_shift(temp2), 8);
|
|
|
|
// stage 3
|
|
step1[0] = step2[0];
|
|
step1[1] = step2[1];
|
|
step1[2] = step2[2];
|
|
step1[3] = step2[3];
|
|
|
|
temp1 = step2[4] * cospi_28_64 - step2[7] * cospi_4_64;
|
|
temp2 = step2[4] * cospi_4_64 + step2[7] * cospi_28_64;
|
|
step1[4] = WRAPLOW(dct_const_round_shift(temp1), 8);
|
|
step1[7] = WRAPLOW(dct_const_round_shift(temp2), 8);
|
|
temp1 = step2[5] * cospi_12_64 - step2[6] * cospi_20_64;
|
|
temp2 = step2[5] * cospi_20_64 + step2[6] * cospi_12_64;
|
|
step1[5] = WRAPLOW(dct_const_round_shift(temp1), 8);
|
|
step1[6] = WRAPLOW(dct_const_round_shift(temp2), 8);
|
|
|
|
step1[8] = WRAPLOW(step2[8] + step2[9], 8);
|
|
step1[9] = WRAPLOW(step2[8] - step2[9], 8);
|
|
step1[10] = WRAPLOW(-step2[10] + step2[11], 8);
|
|
step1[11] = WRAPLOW(step2[10] + step2[11], 8);
|
|
step1[12] = WRAPLOW(step2[12] + step2[13], 8);
|
|
step1[13] = WRAPLOW(step2[12] - step2[13], 8);
|
|
step1[14] = WRAPLOW(-step2[14] + step2[15], 8);
|
|
step1[15] = WRAPLOW(step2[14] + step2[15], 8);
|
|
|
|
// stage 4
|
|
temp1 = (step1[0] + step1[1]) * cospi_16_64;
|
|
temp2 = (step1[0] - step1[1]) * cospi_16_64;
|
|
step2[0] = WRAPLOW(dct_const_round_shift(temp1), 8);
|
|
step2[1] = WRAPLOW(dct_const_round_shift(temp2), 8);
|
|
temp1 = step1[2] * cospi_24_64 - step1[3] * cospi_8_64;
|
|
temp2 = step1[2] * cospi_8_64 + step1[3] * cospi_24_64;
|
|
step2[2] = WRAPLOW(dct_const_round_shift(temp1), 8);
|
|
step2[3] = WRAPLOW(dct_const_round_shift(temp2), 8);
|
|
step2[4] = WRAPLOW(step1[4] + step1[5], 8);
|
|
step2[5] = WRAPLOW(step1[4] - step1[5], 8);
|
|
step2[6] = WRAPLOW(-step1[6] + step1[7], 8);
|
|
step2[7] = WRAPLOW(step1[6] + step1[7], 8);
|
|
|
|
step2[8] = step1[8];
|
|
step2[15] = step1[15];
|
|
temp1 = -step1[9] * cospi_8_64 + step1[14] * cospi_24_64;
|
|
temp2 = step1[9] * cospi_24_64 + step1[14] * cospi_8_64;
|
|
step2[9] = WRAPLOW(dct_const_round_shift(temp1), 8);
|
|
step2[14] = WRAPLOW(dct_const_round_shift(temp2), 8);
|
|
temp1 = -step1[10] * cospi_24_64 - step1[13] * cospi_8_64;
|
|
temp2 = -step1[10] * cospi_8_64 + step1[13] * cospi_24_64;
|
|
step2[10] = WRAPLOW(dct_const_round_shift(temp1), 8);
|
|
step2[13] = WRAPLOW(dct_const_round_shift(temp2), 8);
|
|
step2[11] = step1[11];
|
|
step2[12] = step1[12];
|
|
|
|
// stage 5
|
|
step1[0] = WRAPLOW(step2[0] + step2[3], 8);
|
|
step1[1] = WRAPLOW(step2[1] + step2[2], 8);
|
|
step1[2] = WRAPLOW(step2[1] - step2[2], 8);
|
|
step1[3] = WRAPLOW(step2[0] - step2[3], 8);
|
|
step1[4] = step2[4];
|
|
temp1 = (step2[6] - step2[5]) * cospi_16_64;
|
|
temp2 = (step2[5] + step2[6]) * cospi_16_64;
|
|
step1[5] = WRAPLOW(dct_const_round_shift(temp1), 8);
|
|
step1[6] = WRAPLOW(dct_const_round_shift(temp2), 8);
|
|
step1[7] = step2[7];
|
|
|
|
step1[8] = WRAPLOW(step2[8] + step2[11], 8);
|
|
step1[9] = WRAPLOW(step2[9] + step2[10], 8);
|
|
step1[10] = WRAPLOW(step2[9] - step2[10], 8);
|
|
step1[11] = WRAPLOW(step2[8] - step2[11], 8);
|
|
step1[12] = WRAPLOW(-step2[12] + step2[15], 8);
|
|
step1[13] = WRAPLOW(-step2[13] + step2[14], 8);
|
|
step1[14] = WRAPLOW(step2[13] + step2[14], 8);
|
|
step1[15] = WRAPLOW(step2[12] + step2[15], 8);
|
|
|
|
// stage 6
|
|
step2[0] = WRAPLOW(step1[0] + step1[7], 8);
|
|
step2[1] = WRAPLOW(step1[1] + step1[6], 8);
|
|
step2[2] = WRAPLOW(step1[2] + step1[5], 8);
|
|
step2[3] = WRAPLOW(step1[3] + step1[4], 8);
|
|
step2[4] = WRAPLOW(step1[3] - step1[4], 8);
|
|
step2[5] = WRAPLOW(step1[2] - step1[5], 8);
|
|
step2[6] = WRAPLOW(step1[1] - step1[6], 8);
|
|
step2[7] = WRAPLOW(step1[0] - step1[7], 8);
|
|
step2[8] = step1[8];
|
|
step2[9] = step1[9];
|
|
temp1 = (-step1[10] + step1[13]) * cospi_16_64;
|
|
temp2 = (step1[10] + step1[13]) * cospi_16_64;
|
|
step2[10] = WRAPLOW(dct_const_round_shift(temp1), 8);
|
|
step2[13] = WRAPLOW(dct_const_round_shift(temp2), 8);
|
|
temp1 = (-step1[11] + step1[12]) * cospi_16_64;
|
|
temp2 = (step1[11] + step1[12]) * cospi_16_64;
|
|
step2[11] = WRAPLOW(dct_const_round_shift(temp1), 8);
|
|
step2[12] = WRAPLOW(dct_const_round_shift(temp2), 8);
|
|
step2[14] = step1[14];
|
|
step2[15] = step1[15];
|
|
|
|
// stage 7
|
|
output[0] = WRAPLOW(step2[0] + step2[15], 8);
|
|
output[1] = WRAPLOW(step2[1] + step2[14], 8);
|
|
output[2] = WRAPLOW(step2[2] + step2[13], 8);
|
|
output[3] = WRAPLOW(step2[3] + step2[12], 8);
|
|
output[4] = WRAPLOW(step2[4] + step2[11], 8);
|
|
output[5] = WRAPLOW(step2[5] + step2[10], 8);
|
|
output[6] = WRAPLOW(step2[6] + step2[9], 8);
|
|
output[7] = WRAPLOW(step2[7] + step2[8], 8);
|
|
output[8] = WRAPLOW(step2[7] - step2[8], 8);
|
|
output[9] = WRAPLOW(step2[6] - step2[9], 8);
|
|
output[10] = WRAPLOW(step2[5] - step2[10], 8);
|
|
output[11] = WRAPLOW(step2[4] - step2[11], 8);
|
|
output[12] = WRAPLOW(step2[3] - step2[12], 8);
|
|
output[13] = WRAPLOW(step2[2] - step2[13], 8);
|
|
output[14] = WRAPLOW(step2[1] - step2[14], 8);
|
|
output[15] = WRAPLOW(step2[0] - step2[15], 8);
|
|
}
|
|
|
|
void vp9_idct16x16_256_add_c(const tran_low_t *input, uint8_t *dest,
|
|
int stride) {
|
|
tran_low_t out[16 * 16];
|
|
tran_low_t *outptr = out;
|
|
int i, j;
|
|
tran_low_t temp_in[16], temp_out[16];
|
|
|
|
// First transform rows
|
|
for (i = 0; i < 16; ++i) {
|
|
idct16(input, outptr);
|
|
input += 16;
|
|
outptr += 16;
|
|
}
|
|
|
|
// Then transform columns
|
|
for (i = 0; i < 16; ++i) {
|
|
for (j = 0; j < 16; ++j)
|
|
temp_in[j] = out[j * 16 + i];
|
|
idct16(temp_in, temp_out);
|
|
for (j = 0; j < 16; ++j) {
|
|
dest[j * stride + i] = clip_pixel_add(dest[j * stride + i],
|
|
ROUND_POWER_OF_TWO(temp_out[j], 6));
|
|
}
|
|
}
|
|
}
|
|
|
|
#if CONFIG_WAVELETS
|
|
void vp9_idct16x16_noscale_c(const tran_low_t *input, int16_t *dest,
|
|
int stride) {
|
|
tran_low_t out[16 * 16];
|
|
tran_low_t *outptr = out;
|
|
int i, j;
|
|
tran_low_t temp_in[16], temp_out[16];
|
|
|
|
// First transform rows
|
|
for (i = 0; i < 16; ++i) {
|
|
idct16(input, outptr);
|
|
input += 16;
|
|
outptr += 16;
|
|
}
|
|
|
|
// Then transform columns
|
|
for (i = 0; i < 16; ++i) {
|
|
for (j = 0; j < 16; ++j)
|
|
temp_in[j] = out[j * 16 + i];
|
|
idct16(temp_in, temp_out);
|
|
for (j = 0; j < 16; ++j) {
|
|
dest[j * stride + i] = ROUND_POWER_OF_TWO(temp_out[j], 3);
|
|
}
|
|
}
|
|
}
|
|
#endif // CONFIG_WAVELETS
|
|
|
|
static void iadst16(const tran_low_t *input, tran_low_t *output) {
|
|
tran_high_t s0, s1, s2, s3, s4, s5, s6, s7, s8;
|
|
tran_high_t s9, s10, s11, s12, s13, s14, s15;
|
|
|
|
tran_high_t x0 = input[15];
|
|
tran_high_t x1 = input[0];
|
|
tran_high_t x2 = input[13];
|
|
tran_high_t x3 = input[2];
|
|
tran_high_t x4 = input[11];
|
|
tran_high_t x5 = input[4];
|
|
tran_high_t x6 = input[9];
|
|
tran_high_t x7 = input[6];
|
|
tran_high_t x8 = input[7];
|
|
tran_high_t x9 = input[8];
|
|
tran_high_t x10 = input[5];
|
|
tran_high_t x11 = input[10];
|
|
tran_high_t x12 = input[3];
|
|
tran_high_t x13 = input[12];
|
|
tran_high_t x14 = input[1];
|
|
tran_high_t x15 = input[14];
|
|
|
|
if (!(x0 | x1 | x2 | x3 | x4 | x5 | x6 | x7 | x8
|
|
| x9 | x10 | x11 | x12 | x13 | x14 | x15)) {
|
|
output[0] = output[1] = output[2] = output[3] = output[4]
|
|
= output[5] = output[6] = output[7] = output[8]
|
|
= output[9] = output[10] = output[11] = output[12]
|
|
= output[13] = output[14] = output[15] = 0;
|
|
return;
|
|
}
|
|
|
|
// stage 1
|
|
s0 = x0 * cospi_1_64 + x1 * cospi_31_64;
|
|
s1 = x0 * cospi_31_64 - x1 * cospi_1_64;
|
|
s2 = x2 * cospi_5_64 + x3 * cospi_27_64;
|
|
s3 = x2 * cospi_27_64 - x3 * cospi_5_64;
|
|
s4 = x4 * cospi_9_64 + x5 * cospi_23_64;
|
|
s5 = x4 * cospi_23_64 - x5 * cospi_9_64;
|
|
s6 = x6 * cospi_13_64 + x7 * cospi_19_64;
|
|
s7 = x6 * cospi_19_64 - x7 * cospi_13_64;
|
|
s8 = x8 * cospi_17_64 + x9 * cospi_15_64;
|
|
s9 = x8 * cospi_15_64 - x9 * cospi_17_64;
|
|
s10 = x10 * cospi_21_64 + x11 * cospi_11_64;
|
|
s11 = x10 * cospi_11_64 - x11 * cospi_21_64;
|
|
s12 = x12 * cospi_25_64 + x13 * cospi_7_64;
|
|
s13 = x12 * cospi_7_64 - x13 * cospi_25_64;
|
|
s14 = x14 * cospi_29_64 + x15 * cospi_3_64;
|
|
s15 = x14 * cospi_3_64 - x15 * cospi_29_64;
|
|
|
|
x0 = WRAPLOW(dct_const_round_shift(s0 + s8), 8);
|
|
x1 = WRAPLOW(dct_const_round_shift(s1 + s9), 8);
|
|
x2 = WRAPLOW(dct_const_round_shift(s2 + s10), 8);
|
|
x3 = WRAPLOW(dct_const_round_shift(s3 + s11), 8);
|
|
x4 = WRAPLOW(dct_const_round_shift(s4 + s12), 8);
|
|
x5 = WRAPLOW(dct_const_round_shift(s5 + s13), 8);
|
|
x6 = WRAPLOW(dct_const_round_shift(s6 + s14), 8);
|
|
x7 = WRAPLOW(dct_const_round_shift(s7 + s15), 8);
|
|
x8 = WRAPLOW(dct_const_round_shift(s0 - s8), 8);
|
|
x9 = WRAPLOW(dct_const_round_shift(s1 - s9), 8);
|
|
x10 = WRAPLOW(dct_const_round_shift(s2 - s10), 8);
|
|
x11 = WRAPLOW(dct_const_round_shift(s3 - s11), 8);
|
|
x12 = WRAPLOW(dct_const_round_shift(s4 - s12), 8);
|
|
x13 = WRAPLOW(dct_const_round_shift(s5 - s13), 8);
|
|
x14 = WRAPLOW(dct_const_round_shift(s6 - s14), 8);
|
|
x15 = WRAPLOW(dct_const_round_shift(s7 - s15), 8);
|
|
|
|
// stage 2
|
|
s0 = x0;
|
|
s1 = x1;
|
|
s2 = x2;
|
|
s3 = x3;
|
|
s4 = x4;
|
|
s5 = x5;
|
|
s6 = x6;
|
|
s7 = x7;
|
|
s8 = x8 * cospi_4_64 + x9 * cospi_28_64;
|
|
s9 = x8 * cospi_28_64 - x9 * cospi_4_64;
|
|
s10 = x10 * cospi_20_64 + x11 * cospi_12_64;
|
|
s11 = x10 * cospi_12_64 - x11 * cospi_20_64;
|
|
s12 = - x12 * cospi_28_64 + x13 * cospi_4_64;
|
|
s13 = x12 * cospi_4_64 + x13 * cospi_28_64;
|
|
s14 = - x14 * cospi_12_64 + x15 * cospi_20_64;
|
|
s15 = x14 * cospi_20_64 + x15 * cospi_12_64;
|
|
|
|
x0 = WRAPLOW(s0 + s4, 8);
|
|
x1 = WRAPLOW(s1 + s5, 8);
|
|
x2 = WRAPLOW(s2 + s6, 8);
|
|
x3 = WRAPLOW(s3 + s7, 8);
|
|
x4 = WRAPLOW(s0 - s4, 8);
|
|
x5 = WRAPLOW(s1 - s5, 8);
|
|
x6 = WRAPLOW(s2 - s6, 8);
|
|
x7 = WRAPLOW(s3 - s7, 8);
|
|
x8 = WRAPLOW(dct_const_round_shift(s8 + s12), 8);
|
|
x9 = WRAPLOW(dct_const_round_shift(s9 + s13), 8);
|
|
x10 = WRAPLOW(dct_const_round_shift(s10 + s14), 8);
|
|
x11 = WRAPLOW(dct_const_round_shift(s11 + s15), 8);
|
|
x12 = WRAPLOW(dct_const_round_shift(s8 - s12), 8);
|
|
x13 = WRAPLOW(dct_const_round_shift(s9 - s13), 8);
|
|
x14 = WRAPLOW(dct_const_round_shift(s10 - s14), 8);
|
|
x15 = WRAPLOW(dct_const_round_shift(s11 - s15), 8);
|
|
|
|
// stage 3
|
|
s0 = x0;
|
|
s1 = x1;
|
|
s2 = x2;
|
|
s3 = x3;
|
|
s4 = x4 * cospi_8_64 + x5 * cospi_24_64;
|
|
s5 = x4 * cospi_24_64 - x5 * cospi_8_64;
|
|
s6 = - x6 * cospi_24_64 + x7 * cospi_8_64;
|
|
s7 = x6 * cospi_8_64 + x7 * cospi_24_64;
|
|
s8 = x8;
|
|
s9 = x9;
|
|
s10 = x10;
|
|
s11 = x11;
|
|
s12 = x12 * cospi_8_64 + x13 * cospi_24_64;
|
|
s13 = x12 * cospi_24_64 - x13 * cospi_8_64;
|
|
s14 = - x14 * cospi_24_64 + x15 * cospi_8_64;
|
|
s15 = x14 * cospi_8_64 + x15 * cospi_24_64;
|
|
|
|
x0 = WRAPLOW(check_range(s0 + s2), 8);
|
|
x1 = WRAPLOW(check_range(s1 + s3), 8);
|
|
x2 = WRAPLOW(check_range(s0 - s2), 8);
|
|
x3 = WRAPLOW(check_range(s1 - s3), 8);
|
|
x4 = WRAPLOW(dct_const_round_shift(s4 + s6), 8);
|
|
x5 = WRAPLOW(dct_const_round_shift(s5 + s7), 8);
|
|
x6 = WRAPLOW(dct_const_round_shift(s4 - s6), 8);
|
|
x7 = WRAPLOW(dct_const_round_shift(s5 - s7), 8);
|
|
x8 = WRAPLOW(check_range(s8 + s10), 8);
|
|
x9 = WRAPLOW(check_range(s9 + s11), 8);
|
|
x10 = WRAPLOW(check_range(s8 - s10), 8);
|
|
x11 = WRAPLOW(check_range(s9 - s11), 8);
|
|
x12 = WRAPLOW(dct_const_round_shift(s12 + s14), 8);
|
|
x13 = WRAPLOW(dct_const_round_shift(s13 + s15), 8);
|
|
x14 = WRAPLOW(dct_const_round_shift(s12 - s14), 8);
|
|
x15 = WRAPLOW(dct_const_round_shift(s13 - s15), 8);
|
|
|
|
// stage 4
|
|
s2 = (- cospi_16_64) * (x2 + x3);
|
|
s3 = cospi_16_64 * (x2 - x3);
|
|
s6 = cospi_16_64 * (x6 + x7);
|
|
s7 = cospi_16_64 * (- x6 + x7);
|
|
s10 = cospi_16_64 * (x10 + x11);
|
|
s11 = cospi_16_64 * (- x10 + x11);
|
|
s14 = (- cospi_16_64) * (x14 + x15);
|
|
s15 = cospi_16_64 * (x14 - x15);
|
|
|
|
x2 = WRAPLOW(dct_const_round_shift(s2), 8);
|
|
x3 = WRAPLOW(dct_const_round_shift(s3), 8);
|
|
x6 = WRAPLOW(dct_const_round_shift(s6), 8);
|
|
x7 = WRAPLOW(dct_const_round_shift(s7), 8);
|
|
x10 = WRAPLOW(dct_const_round_shift(s10), 8);
|
|
x11 = WRAPLOW(dct_const_round_shift(s11), 8);
|
|
x14 = WRAPLOW(dct_const_round_shift(s14), 8);
|
|
x15 = WRAPLOW(dct_const_round_shift(s15), 8);
|
|
|
|
output[0] = WRAPLOW(x0, 8);
|
|
output[1] = WRAPLOW(-x8, 8);
|
|
output[2] = WRAPLOW(x12, 8);
|
|
output[3] = WRAPLOW(-x4, 8);
|
|
output[4] = WRAPLOW(x6, 8);
|
|
output[5] = WRAPLOW(x14, 8);
|
|
output[6] = WRAPLOW(x10, 8);
|
|
output[7] = WRAPLOW(x2, 8);
|
|
output[8] = WRAPLOW(x3, 8);
|
|
output[9] = WRAPLOW(x11, 8);
|
|
output[10] = WRAPLOW(x15, 8);
|
|
output[11] = WRAPLOW(x7, 8);
|
|
output[12] = WRAPLOW(x5, 8);
|
|
output[13] = WRAPLOW(-x13, 8);
|
|
output[14] = WRAPLOW(x9, 8);
|
|
output[15] = WRAPLOW(-x1, 8);
|
|
}
|
|
|
|
#if CONFIG_EXT_TX
|
|
void idst16(const tran_low_t *input, tran_low_t *output) {
|
|
#if USE_DST2
|
|
// vp9_igentx16(input, output, Tx16);
|
|
tran_low_t step1[16], step2[16];
|
|
tran_high_t temp1, temp2;
|
|
|
|
// stage 1
|
|
step1[0] = input[15];
|
|
step1[1] = input[7];
|
|
step1[2] = input[11];
|
|
step1[3] = input[3];
|
|
step1[4] = input[13];
|
|
step1[5] = input[5];
|
|
step1[6] = input[9];
|
|
step1[7] = input[1];
|
|
step1[8] = input[14];
|
|
step1[9] = input[6];
|
|
step1[10] = input[10];
|
|
step1[11] = input[2];
|
|
step1[12] = input[12];
|
|
step1[13] = input[4];
|
|
step1[14] = input[8];
|
|
step1[15] = input[0];
|
|
|
|
// stage 2
|
|
step2[0] = step1[0];
|
|
step2[1] = step1[1];
|
|
step2[2] = step1[2];
|
|
step2[3] = step1[3];
|
|
step2[4] = step1[4];
|
|
step2[5] = step1[5];
|
|
step2[6] = step1[6];
|
|
step2[7] = step1[7];
|
|
|
|
temp1 = step1[8] * cospi_30_64 - step1[15] * cospi_2_64;
|
|
temp2 = step1[8] * cospi_2_64 + step1[15] * cospi_30_64;
|
|
step2[8] = WRAPLOW(dct_const_round_shift(temp1), 8);
|
|
step2[15] = WRAPLOW(dct_const_round_shift(temp2), 8);
|
|
|
|
temp1 = step1[9] * cospi_14_64 - step1[14] * cospi_18_64;
|
|
temp2 = step1[9] * cospi_18_64 + step1[14] * cospi_14_64;
|
|
step2[9] = WRAPLOW(dct_const_round_shift(temp1), 8);
|
|
step2[14] = WRAPLOW(dct_const_round_shift(temp2), 8);
|
|
|
|
temp1 = step1[10] * cospi_22_64 - step1[13] * cospi_10_64;
|
|
temp2 = step1[10] * cospi_10_64 + step1[13] * cospi_22_64;
|
|
step2[10] = WRAPLOW(dct_const_round_shift(temp1), 8);
|
|
step2[13] = WRAPLOW(dct_const_round_shift(temp2), 8);
|
|
|
|
temp1 = step1[11] * cospi_6_64 - step1[12] * cospi_26_64;
|
|
temp2 = step1[11] * cospi_26_64 + step1[12] * cospi_6_64;
|
|
step2[11] = WRAPLOW(dct_const_round_shift(temp1), 8);
|
|
step2[12] = WRAPLOW(dct_const_round_shift(temp2), 8);
|
|
|
|
// stage 3
|
|
step1[0] = step2[0];
|
|
step1[1] = step2[1];
|
|
step1[2] = step2[2];
|
|
step1[3] = step2[3];
|
|
|
|
temp1 = step2[4] * cospi_28_64 - step2[7] * cospi_4_64;
|
|
temp2 = step2[4] * cospi_4_64 + step2[7] * cospi_28_64;
|
|
step1[4] = WRAPLOW(dct_const_round_shift(temp1), 8);
|
|
step1[7] = WRAPLOW(dct_const_round_shift(temp2), 8);
|
|
temp1 = step2[5] * cospi_12_64 - step2[6] * cospi_20_64;
|
|
temp2 = step2[5] * cospi_20_64 + step2[6] * cospi_12_64;
|
|
step1[5] = WRAPLOW(dct_const_round_shift(temp1), 8);
|
|
step1[6] = WRAPLOW(dct_const_round_shift(temp2), 8);
|
|
|
|
step1[8] = WRAPLOW(step2[8] + step2[9], 8);
|
|
step1[9] = WRAPLOW(step2[8] - step2[9], 8);
|
|
step1[10] = WRAPLOW(-step2[10] + step2[11], 8);
|
|
step1[11] = WRAPLOW(step2[10] + step2[11], 8);
|
|
step1[12] = WRAPLOW(step2[12] + step2[13], 8);
|
|
step1[13] = WRAPLOW(step2[12] - step2[13], 8);
|
|
step1[14] = WRAPLOW(-step2[14] + step2[15], 8);
|
|
step1[15] = WRAPLOW(step2[14] + step2[15], 8);
|
|
|
|
// stage 4
|
|
temp1 = (step1[0] + step1[1]) * cospi_16_64;
|
|
temp2 = (step1[0] - step1[1]) * cospi_16_64;
|
|
step2[0] = WRAPLOW(dct_const_round_shift(temp1), 8);
|
|
step2[1] = WRAPLOW(dct_const_round_shift(temp2), 8);
|
|
temp1 = step1[2] * cospi_24_64 - step1[3] * cospi_8_64;
|
|
temp2 = step1[2] * cospi_8_64 + step1[3] * cospi_24_64;
|
|
step2[2] = WRAPLOW(dct_const_round_shift(temp1), 8);
|
|
step2[3] = WRAPLOW(dct_const_round_shift(temp2), 8);
|
|
step2[4] = WRAPLOW(step1[4] + step1[5], 8);
|
|
step2[5] = WRAPLOW(step1[4] - step1[5], 8);
|
|
step2[6] = WRAPLOW(-step1[6] + step1[7], 8);
|
|
step2[7] = WRAPLOW(step1[6] + step1[7], 8);
|
|
|
|
step2[8] = step1[8];
|
|
step2[15] = step1[15];
|
|
temp1 = -step1[9] * cospi_8_64 + step1[14] * cospi_24_64;
|
|
temp2 = step1[9] * cospi_24_64 + step1[14] * cospi_8_64;
|
|
step2[9] = WRAPLOW(dct_const_round_shift(temp1), 8);
|
|
step2[14] = WRAPLOW(dct_const_round_shift(temp2), 8);
|
|
temp1 = -step1[10] * cospi_24_64 - step1[13] * cospi_8_64;
|
|
temp2 = -step1[10] * cospi_8_64 + step1[13] * cospi_24_64;
|
|
step2[10] = WRAPLOW(dct_const_round_shift(temp1), 8);
|
|
step2[13] = WRAPLOW(dct_const_round_shift(temp2), 8);
|
|
step2[11] = step1[11];
|
|
step2[12] = step1[12];
|
|
|
|
// stage 5
|
|
step1[0] = WRAPLOW(step2[0] + step2[3], 8);
|
|
step1[1] = WRAPLOW(step2[1] + step2[2], 8);
|
|
step1[2] = WRAPLOW(step2[1] - step2[2], 8);
|
|
step1[3] = WRAPLOW(step2[0] - step2[3], 8);
|
|
step1[4] = step2[4];
|
|
temp1 = (step2[6] - step2[5]) * cospi_16_64;
|
|
temp2 = (step2[5] + step2[6]) * cospi_16_64;
|
|
step1[5] = WRAPLOW(dct_const_round_shift(temp1), 8);
|
|
step1[6] = WRAPLOW(dct_const_round_shift(temp2), 8);
|
|
step1[7] = step2[7];
|
|
|
|
step1[8] = WRAPLOW(step2[8] + step2[11], 8);
|
|
step1[9] = WRAPLOW(step2[9] + step2[10], 8);
|
|
step1[10] = WRAPLOW(step2[9] - step2[10], 8);
|
|
step1[11] = WRAPLOW(step2[8] - step2[11], 8);
|
|
step1[12] = WRAPLOW(-step2[12] + step2[15], 8);
|
|
step1[13] = WRAPLOW(-step2[13] + step2[14], 8);
|
|
step1[14] = WRAPLOW(step2[13] + step2[14], 8);
|
|
step1[15] = WRAPLOW(step2[12] + step2[15], 8);
|
|
|
|
// stage 6
|
|
step2[0] = WRAPLOW(step1[0] + step1[7], 8);
|
|
step2[1] = WRAPLOW(step1[1] + step1[6], 8);
|
|
step2[2] = WRAPLOW(step1[2] + step1[5], 8);
|
|
step2[3] = WRAPLOW(step1[3] + step1[4], 8);
|
|
step2[4] = WRAPLOW(step1[3] - step1[4], 8);
|
|
step2[5] = WRAPLOW(step1[2] - step1[5], 8);
|
|
step2[6] = WRAPLOW(step1[1] - step1[6], 8);
|
|
step2[7] = WRAPLOW(step1[0] - step1[7], 8);
|
|
step2[8] = step1[8];
|
|
step2[9] = step1[9];
|
|
temp1 = (-step1[10] + step1[13]) * cospi_16_64;
|
|
temp2 = (step1[10] + step1[13]) * cospi_16_64;
|
|
step2[10] = WRAPLOW(dct_const_round_shift(temp1), 8);
|
|
step2[13] = WRAPLOW(dct_const_round_shift(temp2), 8);
|
|
temp1 = (-step1[11] + step1[12]) * cospi_16_64;
|
|
temp2 = (step1[11] + step1[12]) * cospi_16_64;
|
|
step2[11] = WRAPLOW(dct_const_round_shift(temp1), 8);
|
|
step2[12] = WRAPLOW(dct_const_round_shift(temp2), 8);
|
|
step2[14] = step1[14];
|
|
step2[15] = step1[15];
|
|
|
|
// stage 7
|
|
output[0] = WRAPLOW(step2[0] + step2[15], 8);
|
|
output[1] = WRAPLOW(-step2[1] - step2[14], 8);
|
|
output[2] = WRAPLOW(step2[2] + step2[13], 8);
|
|
output[3] = WRAPLOW(-step2[3] - step2[12], 8);
|
|
output[4] = WRAPLOW(step2[4] + step2[11], 8);
|
|
output[5] = WRAPLOW(-step2[5] - step2[10], 8);
|
|
output[6] = WRAPLOW(step2[6] + step2[9], 8);
|
|
output[7] = WRAPLOW(-step2[7] - step2[8], 8);
|
|
output[8] = WRAPLOW(step2[7] - step2[8], 8);
|
|
output[9] = WRAPLOW(-step2[6] + step2[9], 8);
|
|
output[10] = WRAPLOW(step2[5] - step2[10], 8);
|
|
output[11] = WRAPLOW(-step2[4] + step2[11], 8);
|
|
output[12] = WRAPLOW(step2[3] - step2[12], 8);
|
|
output[13] = WRAPLOW(-step2[2] + step2[13], 8);
|
|
output[14] = WRAPLOW(step2[1] - step2[14], 8);
|
|
output[15] = WRAPLOW(-step2[0] + step2[15], 8);
|
|
#else
|
|
// {sin(pi/17), sin(pi*2/17, ..., sin(pi*8/17)} * sqrt(2/17) * 2 * sqrt(2)
|
|
static const int32_t sinvalue_lookup[] = {
|
|
47852167, 94074787, 137093803, 175444254,
|
|
207820161, 233119001, 250479254, 259309736
|
|
};
|
|
int64_t sum;
|
|
int64_t s015 = (input[0] + input[15]);
|
|
int64_t d015 = (input[0] - input[15]);
|
|
int64_t s114 = (input[1] + input[14]);
|
|
int64_t d114 = (input[1] - input[14]);
|
|
int64_t s213 = (input[2] + input[13]);
|
|
int64_t d213 = (input[2] - input[13]);
|
|
int64_t s312 = (input[3] + input[12]);
|
|
int64_t d312 = (input[3] - input[12]);
|
|
int64_t s411 = (input[4] + input[11]);
|
|
int64_t d411 = (input[4] - input[11]);
|
|
int64_t s510 = (input[5] + input[10]);
|
|
int64_t d510 = (input[5] - input[10]);
|
|
int64_t s69 = (input[6] + input[9]);
|
|
int64_t d69 = (input[6] - input[9]);
|
|
int64_t s78 = (input[7] + input[8]);
|
|
int64_t d78 = (input[7] - input[8]);
|
|
sum = s015 * sinvalue_lookup[0] + s114 * sinvalue_lookup[1] +
|
|
s213 * sinvalue_lookup[2] + s312 * sinvalue_lookup[3] +
|
|
s411 * sinvalue_lookup[4] + s510 * sinvalue_lookup[5] +
|
|
s69 * sinvalue_lookup[6] + s78 * sinvalue_lookup[7];
|
|
output[0] = WRAPLOW(ROUND_POWER_OF_TWO(sum, (2 * DCT_CONST_BITS)), 8);
|
|
sum = d015 * sinvalue_lookup[1] + d114 * sinvalue_lookup[3] +
|
|
d213 * sinvalue_lookup[5] + d312 * sinvalue_lookup[7] +
|
|
d411 * sinvalue_lookup[6] + d510 * sinvalue_lookup[4] +
|
|
d69 * sinvalue_lookup[2] + d78 * sinvalue_lookup[0];
|
|
output[1] = WRAPLOW(ROUND_POWER_OF_TWO(sum, (2 * DCT_CONST_BITS)), 8);
|
|
sum = s015 * sinvalue_lookup[2] + s114 * sinvalue_lookup[5] +
|
|
s213 * sinvalue_lookup[7] + s312 * sinvalue_lookup[4] +
|
|
s411 * sinvalue_lookup[1] - s510 * sinvalue_lookup[0] -
|
|
s69 * sinvalue_lookup[3] - s78 * sinvalue_lookup[6];
|
|
output[2] = WRAPLOW(ROUND_POWER_OF_TWO(sum, (2 * DCT_CONST_BITS)), 8);
|
|
sum = d015 * sinvalue_lookup[3] + d114 * sinvalue_lookup[7] +
|
|
d213 * sinvalue_lookup[4] + d312 * sinvalue_lookup[0] -
|
|
d411 * sinvalue_lookup[2] - d510 * sinvalue_lookup[6] -
|
|
d69 * sinvalue_lookup[5] - d78 * sinvalue_lookup[1];
|
|
output[3] = WRAPLOW(ROUND_POWER_OF_TWO(sum, (2 * DCT_CONST_BITS)), 8);
|
|
sum = s015 * sinvalue_lookup[4] + s114 * sinvalue_lookup[6] +
|
|
s213 * sinvalue_lookup[1] - s312 * sinvalue_lookup[2] -
|
|
s411 * sinvalue_lookup[7] - s510 * sinvalue_lookup[3] +
|
|
s69 * sinvalue_lookup[0] + s78 * sinvalue_lookup[5];
|
|
output[4] = WRAPLOW(ROUND_POWER_OF_TWO(sum, (2 * DCT_CONST_BITS)), 8);
|
|
sum = d015 * sinvalue_lookup[5] + d114 * sinvalue_lookup[4] -
|
|
d213 * sinvalue_lookup[0] - d312 * sinvalue_lookup[6] -
|
|
d411 * sinvalue_lookup[3] + d510 * sinvalue_lookup[1] +
|
|
d69 * sinvalue_lookup[7] + d78 * sinvalue_lookup[2];
|
|
output[5] = WRAPLOW(ROUND_POWER_OF_TWO(sum, (2 * DCT_CONST_BITS)), 8);
|
|
sum = s015 * sinvalue_lookup[6] + s114 * sinvalue_lookup[2] -
|
|
s213 * sinvalue_lookup[3] - s312 * sinvalue_lookup[5] +
|
|
s411 * sinvalue_lookup[0] + s510 * sinvalue_lookup[7] +
|
|
s69 * sinvalue_lookup[1] - s78 * sinvalue_lookup[4];
|
|
output[6] = WRAPLOW(ROUND_POWER_OF_TWO(sum, (2 * DCT_CONST_BITS)), 8);
|
|
sum = d015 * sinvalue_lookup[7] + d114 * sinvalue_lookup[0] -
|
|
d213 * sinvalue_lookup[6] - d312 * sinvalue_lookup[1] +
|
|
d411 * sinvalue_lookup[5] + d510 * sinvalue_lookup[2] -
|
|
d69 * sinvalue_lookup[4] - d78 * sinvalue_lookup[3];
|
|
output[7] = WRAPLOW(ROUND_POWER_OF_TWO(sum, (2 * DCT_CONST_BITS)), 8);
|
|
sum = s015 * sinvalue_lookup[7] - s114 * sinvalue_lookup[0] -
|
|
s213 * sinvalue_lookup[6] + s312 * sinvalue_lookup[1] +
|
|
s411 * sinvalue_lookup[5] - s510 * sinvalue_lookup[2] -
|
|
s69 * sinvalue_lookup[4] + s78 * sinvalue_lookup[3];
|
|
output[8] = WRAPLOW(ROUND_POWER_OF_TWO(sum, (2 * DCT_CONST_BITS)), 8);
|
|
sum = d015 * sinvalue_lookup[6] - d114 * sinvalue_lookup[2] -
|
|
d213 * sinvalue_lookup[3] + d312 * sinvalue_lookup[5] +
|
|
d411 * sinvalue_lookup[0] - d510 * sinvalue_lookup[7] +
|
|
d69 * sinvalue_lookup[1] + d78 * sinvalue_lookup[4];
|
|
output[9] = WRAPLOW(ROUND_POWER_OF_TWO(sum, (2 * DCT_CONST_BITS)), 8);
|
|
sum = s015 * sinvalue_lookup[5] - s114 * sinvalue_lookup[4] -
|
|
s213 * sinvalue_lookup[0] + s312 * sinvalue_lookup[6] -
|
|
s411 * sinvalue_lookup[3] - s510 * sinvalue_lookup[1] +
|
|
s69 * sinvalue_lookup[7] - s78 * sinvalue_lookup[2];
|
|
output[10] = WRAPLOW(ROUND_POWER_OF_TWO(sum, (2 * DCT_CONST_BITS)), 8);
|
|
sum = d015 * sinvalue_lookup[4] - d114 * sinvalue_lookup[6] +
|
|
d213 * sinvalue_lookup[1] + d312 * sinvalue_lookup[2] -
|
|
d411 * sinvalue_lookup[7] + d510 * sinvalue_lookup[3] +
|
|
d69 * sinvalue_lookup[0] - d78 * sinvalue_lookup[5];
|
|
output[11] = WRAPLOW(ROUND_POWER_OF_TWO(sum, (2 * DCT_CONST_BITS)), 8);
|
|
sum = s015 * sinvalue_lookup[3] - s114 * sinvalue_lookup[7] +
|
|
s213 * sinvalue_lookup[4] - s312 * sinvalue_lookup[0] -
|
|
s411 * sinvalue_lookup[2] + s510 * sinvalue_lookup[6] -
|
|
s69 * sinvalue_lookup[5] + s78 * sinvalue_lookup[1];
|
|
output[12] = WRAPLOW(ROUND_POWER_OF_TWO(sum, (2 * DCT_CONST_BITS)), 8);
|
|
sum = d015 * sinvalue_lookup[2] - d114 * sinvalue_lookup[5] +
|
|
d213 * sinvalue_lookup[7] - d312 * sinvalue_lookup[4] +
|
|
d411 * sinvalue_lookup[1] + d510 * sinvalue_lookup[0] -
|
|
d69 * sinvalue_lookup[3] + d78 * sinvalue_lookup[6];
|
|
output[13] = WRAPLOW(ROUND_POWER_OF_TWO(sum, (2 * DCT_CONST_BITS)), 8);
|
|
sum = s015 * sinvalue_lookup[1] - s114 * sinvalue_lookup[3] +
|
|
s213 * sinvalue_lookup[5] - s312 * sinvalue_lookup[7] +
|
|
r411 * sinvalue_lookup[6] - s510 * sinvalue_lookup[4] +
|
|
s69 * sinvalue_lookup[2] - s78 * sinvalue_lookup[0];
|
|
output[14] = WRAPLOW(ROUND_POWER_OF_TWO(sum, (2 * DCT_CONST_BITS)), 8);
|
|
sum = d015 * sinvalue_lookup[0] - d114 * sinvalue_lookup[1] +
|
|
d213 * sinvalue_lookup[2] - d312 * sinvalue_lookup[3] +
|
|
d411 * sinvalue_lookup[4] - d510 * sinvalue_lookup[5] +
|
|
d69 * sinvalue_lookup[6] - d78 * sinvalue_lookup[7];
|
|
output[15] = WRAPLOW(ROUND_POWER_OF_TWO(sum, (2 * DCT_CONST_BITS)), 8);
|
|
#endif
|
|
}
|
|
|
|
#if CONFIG_VP9_HIGHBITDEPTH
|
|
void highbd_idst16(const tran_low_t *input, tran_low_t *output, int bd) {
|
|
#if USE_DST2
|
|
// vp9_highbd_igentx16(input, output, bd, Tx16);
|
|
tran_low_t step1[16], step2[16];
|
|
tran_high_t temp1, temp2;
|
|
(void) bd;
|
|
|
|
// stage 1
|
|
step1[0] = input[15];
|
|
step1[1] = input[7];
|
|
step1[2] = input[11];
|
|
step1[3] = input[3];
|
|
step1[4] = input[13];
|
|
step1[5] = input[5];
|
|
step1[6] = input[9];
|
|
step1[7] = input[1];
|
|
step1[8] = input[14];
|
|
step1[9] = input[6];
|
|
step1[10] = input[10];
|
|
step1[11] = input[2];
|
|
step1[12] = input[12];
|
|
step1[13] = input[4];
|
|
step1[14] = input[8];
|
|
step1[15] = input[0];
|
|
|
|
// stage 2
|
|
step2[0] = step1[0];
|
|
step2[1] = step1[1];
|
|
step2[2] = step1[2];
|
|
step2[3] = step1[3];
|
|
step2[4] = step1[4];
|
|
step2[5] = step1[5];
|
|
step2[6] = step1[6];
|
|
step2[7] = step1[7];
|
|
|
|
temp1 = step1[8] * cospi_30_64 - step1[15] * cospi_2_64;
|
|
temp2 = step1[8] * cospi_2_64 + step1[15] * cospi_30_64;
|
|
step2[8] = WRAPLOW(dct_const_round_shift(temp1), bd);
|
|
step2[15] = WRAPLOW(dct_const_round_shift(temp2), bd);
|
|
|
|
temp1 = step1[9] * cospi_14_64 - step1[14] * cospi_18_64;
|
|
temp2 = step1[9] * cospi_18_64 + step1[14] * cospi_14_64;
|
|
step2[9] = WRAPLOW(dct_const_round_shift(temp1), bd);
|
|
step2[14] = WRAPLOW(dct_const_round_shift(temp2), bd);
|
|
|
|
temp1 = step1[10] * cospi_22_64 - step1[13] * cospi_10_64;
|
|
temp2 = step1[10] * cospi_10_64 + step1[13] * cospi_22_64;
|
|
step2[10] = WRAPLOW(dct_const_round_shift(temp1), bd);
|
|
step2[13] = WRAPLOW(dct_const_round_shift(temp2), bd);
|
|
|
|
temp1 = step1[11] * cospi_6_64 - step1[12] * cospi_26_64;
|
|
temp2 = step1[11] * cospi_26_64 + step1[12] * cospi_6_64;
|
|
step2[11] = WRAPLOW(dct_const_round_shift(temp1), bd);
|
|
step2[12] = WRAPLOW(dct_const_round_shift(temp2), bd);
|
|
|
|
// stage 3
|
|
step1[0] = step2[0];
|
|
step1[1] = step2[1];
|
|
step1[2] = step2[2];
|
|
step1[3] = step2[3];
|
|
|
|
temp1 = step2[4] * cospi_28_64 - step2[7] * cospi_4_64;
|
|
temp2 = step2[4] * cospi_4_64 + step2[7] * cospi_28_64;
|
|
step1[4] = WRAPLOW(dct_const_round_shift(temp1), bd);
|
|
step1[7] = WRAPLOW(dct_const_round_shift(temp2), bd);
|
|
temp1 = step2[5] * cospi_12_64 - step2[6] * cospi_20_64;
|
|
temp2 = step2[5] * cospi_20_64 + step2[6] * cospi_12_64;
|
|
step1[5] = WRAPLOW(dct_const_round_shift(temp1), bd);
|
|
step1[6] = WRAPLOW(dct_const_round_shift(temp2), bd);
|
|
|
|
step1[8] = WRAPLOW(step2[8] + step2[9], bd);
|
|
step1[9] = WRAPLOW(step2[8] - step2[9], bd);
|
|
step1[10] = WRAPLOW(-step2[10] + step2[11], bd);
|
|
step1[11] = WRAPLOW(step2[10] + step2[11], bd);
|
|
step1[12] = WRAPLOW(step2[12] + step2[13], bd);
|
|
step1[13] = WRAPLOW(step2[12] - step2[13], bd);
|
|
step1[14] = WRAPLOW(-step2[14] + step2[15], bd);
|
|
step1[15] = WRAPLOW(step2[14] + step2[15], bd);
|
|
|
|
// stage 4
|
|
temp1 = (step1[0] + step1[1]) * cospi_16_64;
|
|
temp2 = (step1[0] - step1[1]) * cospi_16_64;
|
|
step2[0] = WRAPLOW(dct_const_round_shift(temp1), bd);
|
|
step2[1] = WRAPLOW(dct_const_round_shift(temp2), bd);
|
|
temp1 = step1[2] * cospi_24_64 - step1[3] * cospi_8_64;
|
|
temp2 = step1[2] * cospi_8_64 + step1[3] * cospi_24_64;
|
|
step2[2] = WRAPLOW(dct_const_round_shift(temp1), bd);
|
|
step2[3] = WRAPLOW(dct_const_round_shift(temp2), bd);
|
|
step2[4] = WRAPLOW(step1[4] + step1[5], bd);
|
|
step2[5] = WRAPLOW(step1[4] - step1[5], bd);
|
|
step2[6] = WRAPLOW(-step1[6] + step1[7], bd);
|
|
step2[7] = WRAPLOW(step1[6] + step1[7], bd);
|
|
|
|
step2[8] = step1[8];
|
|
step2[15] = step1[15];
|
|
temp1 = -step1[9] * cospi_8_64 + step1[14] * cospi_24_64;
|
|
temp2 = step1[9] * cospi_24_64 + step1[14] * cospi_8_64;
|
|
step2[9] = WRAPLOW(dct_const_round_shift(temp1), bd);
|
|
step2[14] = WRAPLOW(dct_const_round_shift(temp2), bd);
|
|
temp1 = -step1[10] * cospi_24_64 - step1[13] * cospi_8_64;
|
|
temp2 = -step1[10] * cospi_8_64 + step1[13] * cospi_24_64;
|
|
step2[10] = WRAPLOW(dct_const_round_shift(temp1), bd);
|
|
step2[13] = WRAPLOW(dct_const_round_shift(temp2), bd);
|
|
step2[11] = step1[11];
|
|
step2[12] = step1[12];
|
|
|
|
// stage 5
|
|
step1[0] = WRAPLOW(step2[0] + step2[3], bd);
|
|
step1[1] = WRAPLOW(step2[1] + step2[2], bd);
|
|
step1[2] = WRAPLOW(step2[1] - step2[2], bd);
|
|
step1[3] = WRAPLOW(step2[0] - step2[3], bd);
|
|
step1[4] = step2[4];
|
|
temp1 = (step2[6] - step2[5]) * cospi_16_64;
|
|
temp2 = (step2[5] + step2[6]) * cospi_16_64;
|
|
step1[5] = WRAPLOW(dct_const_round_shift(temp1), bd);
|
|
step1[6] = WRAPLOW(dct_const_round_shift(temp2), bd);
|
|
step1[7] = step2[7];
|
|
|
|
step1[8] = WRAPLOW(step2[8] + step2[11], bd);
|
|
step1[9] = WRAPLOW(step2[9] + step2[10], bd);
|
|
step1[10] = WRAPLOW(step2[9] - step2[10], bd);
|
|
step1[11] = WRAPLOW(step2[8] - step2[11], bd);
|
|
step1[12] = WRAPLOW(-step2[12] + step2[15], bd);
|
|
step1[13] = WRAPLOW(-step2[13] + step2[14], bd);
|
|
step1[14] = WRAPLOW(step2[13] + step2[14], bd);
|
|
step1[15] = WRAPLOW(step2[12] + step2[15], bd);
|
|
|
|
// stage 6
|
|
step2[0] = WRAPLOW(step1[0] + step1[7], bd);
|
|
step2[1] = WRAPLOW(step1[1] + step1[6], bd);
|
|
step2[2] = WRAPLOW(step1[2] + step1[5], bd);
|
|
step2[3] = WRAPLOW(step1[3] + step1[4], bd);
|
|
step2[4] = WRAPLOW(step1[3] - step1[4], bd);
|
|
step2[5] = WRAPLOW(step1[2] - step1[5], bd);
|
|
step2[6] = WRAPLOW(step1[1] - step1[6], bd);
|
|
step2[7] = WRAPLOW(step1[0] - step1[7], bd);
|
|
step2[8] = step1[8];
|
|
step2[9] = step1[9];
|
|
temp1 = (-step1[10] + step1[13]) * cospi_16_64;
|
|
temp2 = (step1[10] + step1[13]) * cospi_16_64;
|
|
step2[10] = WRAPLOW(dct_const_round_shift(temp1), bd);
|
|
step2[13] = WRAPLOW(dct_const_round_shift(temp2), bd);
|
|
temp1 = (-step1[11] + step1[12]) * cospi_16_64;
|
|
temp2 = (step1[11] + step1[12]) * cospi_16_64;
|
|
step2[11] = WRAPLOW(dct_const_round_shift(temp1), bd);
|
|
step2[12] = WRAPLOW(dct_const_round_shift(temp2), bd);
|
|
step2[14] = step1[14];
|
|
step2[15] = step1[15];
|
|
|
|
// stage 7
|
|
output[0] = WRAPLOW(step2[0] + step2[15], bd);
|
|
output[1] = WRAPLOW(-step2[1] - step2[14], bd);
|
|
output[2] = WRAPLOW(step2[2] + step2[13], bd);
|
|
output[3] = WRAPLOW(-step2[3] - step2[12], bd);
|
|
output[4] = WRAPLOW(step2[4] + step2[11], bd);
|
|
output[5] = WRAPLOW(-step2[5] - step2[10], bd);
|
|
output[6] = WRAPLOW(step2[6] + step2[9], bd);
|
|
output[7] = WRAPLOW(-step2[7] - step2[8], bd);
|
|
output[8] = WRAPLOW(step2[7] - step2[8], bd);
|
|
output[9] = WRAPLOW(-step2[6] + step2[9], bd);
|
|
output[10] = WRAPLOW(step2[5] - step2[10], bd);
|
|
output[11] = WRAPLOW(-step2[4] + step2[11], bd);
|
|
output[12] = WRAPLOW(step2[3] - step2[12], bd);
|
|
output[13] = WRAPLOW(-step2[2] + step2[13], bd);
|
|
output[14] = WRAPLOW(step2[1] - step2[14], bd);
|
|
output[15] = WRAPLOW(-step2[0] + step2[15], bd);
|
|
#else
|
|
// {sin(pi/17), sin(pi*2/17, ..., sin(pi*8/17)} * sqrt(2/17) * 2 * sqrt(2)
|
|
static const int32_t sinvalue_lookup[] = {
|
|
47852167, 94074787, 137093803, 175444254,
|
|
207820161, 233119001, 250479254, 259309736
|
|
};
|
|
int64_t sum;
|
|
int64_t s015 = (input[0] + input[15]);
|
|
int64_t d015 = (input[0] - input[15]);
|
|
int64_t s114 = (input[1] + input[14]);
|
|
int64_t d114 = (input[1] - input[14]);
|
|
int64_t s213 = (input[2] + input[13]);
|
|
int64_t d213 = (input[2] - input[13]);
|
|
int64_t s312 = (input[3] + input[12]);
|
|
int64_t d312 = (input[3] - input[12]);
|
|
int64_t s411 = (input[4] + input[11]);
|
|
int64_t d411 = (input[4] - input[11]);
|
|
int64_t s510 = (input[5] + input[10]);
|
|
int64_t d510 = (input[5] - input[10]);
|
|
int64_t s69 = (input[6] + input[9]);
|
|
int64_t d69 = (input[6] - input[9]);
|
|
int64_t s78 = (input[7] + input[8]);
|
|
int64_t d78 = (input[7] - input[8]);
|
|
(void) bd;
|
|
|
|
sum = s015 * sinvalue_lookup[0] + s114 * sinvalue_lookup[1] +
|
|
s213 * sinvalue_lookup[2] + s312 * sinvalue_lookup[3] +
|
|
s411 * sinvalue_lookup[4] + s510 * sinvalue_lookup[5] +
|
|
s69 * sinvalue_lookup[6] + s78 * sinvalue_lookup[7];
|
|
output[0] = WRAPLOW(ROUND_POWER_OF_TWO(sum, (2 * DCT_CONST_BITS)), bd);
|
|
sum = d015 * sinvalue_lookup[1] + d114 * sinvalue_lookup[3] +
|
|
d213 * sinvalue_lookup[5] + d312 * sinvalue_lookup[7] +
|
|
d411 * sinvalue_lookup[6] + d510 * sinvalue_lookup[4] +
|
|
d69 * sinvalue_lookup[2] + d78 * sinvalue_lookup[0];
|
|
output[1] = WRAPLOW(ROUND_POWER_OF_TWO(sum, (2 * DCT_CONST_BITS)), bd);
|
|
sum = s015 * sinvalue_lookup[2] + s114 * sinvalue_lookup[5] +
|
|
s213 * sinvalue_lookup[7] + s312 * sinvalue_lookup[4] +
|
|
s411 * sinvalue_lookup[1] - s510 * sinvalue_lookup[0] -
|
|
s69 * sinvalue_lookup[3] - s78 * sinvalue_lookup[6];
|
|
output[2] = WRAPLOW(ROUND_POWER_OF_TWO(sum, (2 * DCT_CONST_BITS)), bd);
|
|
sum = d015 * sinvalue_lookup[3] + d114 * sinvalue_lookup[7] +
|
|
d213 * sinvalue_lookup[4] + d312 * sinvalue_lookup[0] -
|
|
d411 * sinvalue_lookup[2] - d510 * sinvalue_lookup[6] -
|
|
d69 * sinvalue_lookup[5] - d78 * sinvalue_lookup[1];
|
|
output[3] = WRAPLOW(ROUND_POWER_OF_TWO(sum, (2 * DCT_CONST_BITS)), bd);
|
|
sum = s015 * sinvalue_lookup[4] + s114 * sinvalue_lookup[6] +
|
|
s213 * sinvalue_lookup[1] - s312 * sinvalue_lookup[2] -
|
|
s411 * sinvalue_lookup[7] - s510 * sinvalue_lookup[3] +
|
|
s69 * sinvalue_lookup[0] + s78 * sinvalue_lookup[5];
|
|
output[4] = WRAPLOW(ROUND_POWER_OF_TWO(sum, (2 * DCT_CONST_BITS)), bd);
|
|
sum = d015 * sinvalue_lookup[5] + d114 * sinvalue_lookup[4] -
|
|
d213 * sinvalue_lookup[0] - d312 * sinvalue_lookup[6] -
|
|
d411 * sinvalue_lookup[3] + d510 * sinvalue_lookup[1] +
|
|
d69 * sinvalue_lookup[7] + d78 * sinvalue_lookup[2];
|
|
output[5] = WRAPLOW(ROUND_POWER_OF_TWO(sum, (2 * DCT_CONST_BITS)), bd);
|
|
sum = s015 * sinvalue_lookup[6] + s114 * sinvalue_lookup[2] -
|
|
s213 * sinvalue_lookup[3] - s312 * sinvalue_lookup[5] +
|
|
s411 * sinvalue_lookup[0] + s510 * sinvalue_lookup[7] +
|
|
s69 * sinvalue_lookup[1] - s78 * sinvalue_lookup[4];
|
|
output[6] = WRAPLOW(ROUND_POWER_OF_TWO(sum, (2 * DCT_CONST_BITS)), bd);
|
|
sum = d015 * sinvalue_lookup[7] + d114 * sinvalue_lookup[0] -
|
|
d213 * sinvalue_lookup[6] - d312 * sinvalue_lookup[1] +
|
|
d411 * sinvalue_lookup[5] + d510 * sinvalue_lookup[2] -
|
|
d69 * sinvalue_lookup[4] - d78 * sinvalue_lookup[3];
|
|
output[7] = WRAPLOW(ROUND_POWER_OF_TWO(sum, (2 * DCT_CONST_BITS)), bd);
|
|
sum = s015 * sinvalue_lookup[7] - s114 * sinvalue_lookup[0] -
|
|
s213 * sinvalue_lookup[6] + s312 * sinvalue_lookup[1] +
|
|
s411 * sinvalue_lookup[5] - s510 * sinvalue_lookup[2] -
|
|
s69 * sinvalue_lookup[4] + s78 * sinvalue_lookup[3];
|
|
output[8] = WRAPLOW(ROUND_POWER_OF_TWO(sum, (2 * DCT_CONST_BITS)), bd);
|
|
sum = d015 * sinvalue_lookup[6] - d114 * sinvalue_lookup[2] -
|
|
d213 * sinvalue_lookup[3] + d312 * sinvalue_lookup[5] +
|
|
d411 * sinvalue_lookup[0] - d510 * sinvalue_lookup[7] +
|
|
d69 * sinvalue_lookup[1] + d78 * sinvalue_lookup[4];
|
|
output[9] = WRAPLOW(ROUND_POWER_OF_TWO(sum, (2 * DCT_CONST_BITS)), bd);
|
|
sum = s015 * sinvalue_lookup[5] - s114 * sinvalue_lookup[4] -
|
|
s213 * sinvalue_lookup[0] + s312 * sinvalue_lookup[6] -
|
|
s411 * sinvalue_lookup[3] - s510 * sinvalue_lookup[1] +
|
|
s69 * sinvalue_lookup[7] - s78 * sinvalue_lookup[2];
|
|
output[10] = WRAPLOW(ROUND_POWER_OF_TWO(sum, (2 * DCT_CONST_BITS)), bd);
|
|
sum = d015 * sinvalue_lookup[4] - d114 * sinvalue_lookup[6] +
|
|
d213 * sinvalue_lookup[1] + d312 * sinvalue_lookup[2] -
|
|
d411 * sinvalue_lookup[7] + d510 * sinvalue_lookup[3] +
|
|
d69 * sinvalue_lookup[0] - d78 * sinvalue_lookup[5];
|
|
output[11] = WRAPLOW(ROUND_POWER_OF_TWO(sum, (2 * DCT_CONST_BITS)), bd);
|
|
sum = s015 * sinvalue_lookup[3] - s114 * sinvalue_lookup[7] +
|
|
s213 * sinvalue_lookup[4] - s312 * sinvalue_lookup[0] -
|
|
s411 * sinvalue_lookup[2] + s510 * sinvalue_lookup[6] -
|
|
s69 * sinvalue_lookup[5] + s78 * sinvalue_lookup[1];
|
|
output[12] = WRAPLOW(ROUND_POWER_OF_TWO(sum, (2 * DCT_CONST_BITS)), bd);
|
|
sum = d015 * sinvalue_lookup[2] - d114 * sinvalue_lookup[5] +
|
|
d213 * sinvalue_lookup[7] - d312 * sinvalue_lookup[4] +
|
|
d411 * sinvalue_lookup[1] + d510 * sinvalue_lookup[0] -
|
|
d69 * sinvalue_lookup[3] + d78 * sinvalue_lookup[6];
|
|
output[13] = WRAPLOW(ROUND_POWER_OF_TWO(sum, (2 * DCT_CONST_BITS)), bd);
|
|
sum = s015 * sinvalue_lookup[1] - s114 * sinvalue_lookup[3] +
|
|
s213 * sinvalue_lookup[5] - s312 * sinvalue_lookup[7] +
|
|
s411 * sinvalue_lookup[6] - s510 * sinvalue_lookup[4] +
|
|
s69 * sinvalue_lookup[2] - s78 * sinvalue_lookup[0];
|
|
output[14] = WRAPLOW(ROUND_POWER_OF_TWO(sum, (2 * DCT_CONST_BITS)), bd);
|
|
sum = d015 * sinvalue_lookup[0] - d114 * sinvalue_lookup[1] +
|
|
d213 * sinvalue_lookup[2] - d312 * sinvalue_lookup[3] +
|
|
d411 * sinvalue_lookup[4] - d510 * sinvalue_lookup[5] +
|
|
d69 * sinvalue_lookup[6] - d78 * sinvalue_lookup[7];
|
|
output[15] = WRAPLOW(ROUND_POWER_OF_TWO(sum, (2 * DCT_CONST_BITS)), bd);
|
|
#endif
|
|
}
|
|
#endif // CONFIG_VP9_HIGHBITDEPTH
|
|
#endif // CONFIG_EXT_TX
|
|
|
|
static const transform_2d IHT_16[] = {
|
|
{ idct16, idct16 }, // DCT_DCT = 0
|
|
{ iadst16, idct16 }, // ADST_DCT = 1
|
|
{ idct16, iadst16 }, // DCT_ADST = 2
|
|
{ iadst16, iadst16 }, // ADST_ADST = 3
|
|
#if CONFIG_EXT_TX
|
|
{ iadst16, idct16 }, // FLIPADST_DCT = 4
|
|
{ idct16, iadst16 }, // DCT_FLIPADST = 5
|
|
{ iadst16, iadst16 }, // FLIPADST_FLIPADST = 6
|
|
{ iadst16, iadst16 }, // ADST_FLIPADST = 7
|
|
{ iadst16, iadst16 }, // FLIPADST_ADST = 8
|
|
{ idst16, idst16 }, // DST_DST = 9
|
|
{ idst16, idct16 }, // DST_DCT = 10
|
|
{ idct16, idst16 }, // DCT_DST = 11
|
|
{ idst16, iadst16 }, // DST_ADST = 12
|
|
{ iadst16, idst16 }, // ADST_DST = 13
|
|
{ idst16, iadst16 }, // DST_FLIPADST = 14
|
|
{ iadst16, idst16 }, // FLIPADST_DST = 15
|
|
#endif // CONFIG_EXT_TX
|
|
};
|
|
|
|
void vp9_iht16x16_256_add_c(const tran_low_t *input, uint8_t *dest, int stride,
|
|
int tx_type) {
|
|
int i, j;
|
|
tran_low_t tmp;
|
|
tran_low_t out[16][16];
|
|
tran_low_t *outp = &out[0][0];
|
|
int outstride = 16;
|
|
|
|
// inverse transform row vectors
|
|
for (i = 0; i < 16; ++i) {
|
|
IHT_16[tx_type].rows(input, out[i]);
|
|
input += 16;
|
|
}
|
|
|
|
// transpose
|
|
for (i = 1 ; i < 16; i++) {
|
|
for (j = 0; j < i; j++) {
|
|
tmp = out[i][j];
|
|
out[i][j] = out[j][i];
|
|
out[j][i] = tmp;
|
|
}
|
|
}
|
|
|
|
// inverse transform column vectors
|
|
for (i = 0; i < 16; ++i) {
|
|
IHT_16[tx_type].cols(out[i], out[i]);
|
|
}
|
|
|
|
#if CONFIG_EXT_TX
|
|
maybe_flip_strides(&dest, &stride, &outp, &outstride, tx_type, 16);
|
|
#endif
|
|
|
|
// Sum with the destination
|
|
for (i = 0; i < 16; ++i) {
|
|
for (j = 0; j < 16; ++j) {
|
|
int d = i * stride + j;
|
|
int s = j * outstride + i;
|
|
dest[d] = clip_pixel_add(dest[d], ROUND_POWER_OF_TWO(outp[s], 6));
|
|
}
|
|
}
|
|
}
|
|
|
|
void vp9_idct16x16_10_add_c(const tran_low_t *input, uint8_t *dest,
|
|
int stride) {
|
|
tran_low_t out[16 * 16] = { 0 };
|
|
tran_low_t *outptr = out;
|
|
int i, j;
|
|
tran_low_t temp_in[16], temp_out[16];
|
|
|
|
// First transform rows. Since all non-zero dct coefficients are in
|
|
// upper-left 4x4 area, we only need to calculate first 4 rows here.
|
|
for (i = 0; i < 4; ++i) {
|
|
idct16(input, outptr);
|
|
input += 16;
|
|
outptr += 16;
|
|
}
|
|
|
|
// Then transform columns
|
|
for (i = 0; i < 16; ++i) {
|
|
for (j = 0; j < 16; ++j)
|
|
temp_in[j] = out[j*16 + i];
|
|
idct16(temp_in, temp_out);
|
|
for (j = 0; j < 16; ++j) {
|
|
dest[j * stride + i] = clip_pixel_add(dest[j * stride + i],
|
|
ROUND_POWER_OF_TWO(temp_out[j], 6));
|
|
}
|
|
}
|
|
}
|
|
|
|
void vp9_idct16x16_1_add_c(const tran_low_t *input, uint8_t *dest, int stride) {
|
|
int i, j;
|
|
tran_high_t a1;
|
|
tran_low_t out = WRAPLOW(dct_const_round_shift(input[0] * cospi_16_64), 8);
|
|
out = WRAPLOW(dct_const_round_shift(out * cospi_16_64), 8);
|
|
a1 = ROUND_POWER_OF_TWO(out, 6);
|
|
for (j = 0; j < 16; ++j) {
|
|
for (i = 0; i < 16; ++i)
|
|
dest[i] = clip_pixel_add(dest[i], a1);
|
|
dest += stride;
|
|
}
|
|
}
|
|
|
|
static void idct32(const tran_low_t *input, tran_low_t *output) {
|
|
tran_low_t step1[32], step2[32];
|
|
tran_high_t temp1, temp2;
|
|
|
|
// stage 1
|
|
step1[0] = input[0];
|
|
step1[1] = input[16];
|
|
step1[2] = input[8];
|
|
step1[3] = input[24];
|
|
step1[4] = input[4];
|
|
step1[5] = input[20];
|
|
step1[6] = input[12];
|
|
step1[7] = input[28];
|
|
step1[8] = input[2];
|
|
step1[9] = input[18];
|
|
step1[10] = input[10];
|
|
step1[11] = input[26];
|
|
step1[12] = input[6];
|
|
step1[13] = input[22];
|
|
step1[14] = input[14];
|
|
step1[15] = input[30];
|
|
|
|
temp1 = input[1] * cospi_31_64 - input[31] * cospi_1_64;
|
|
temp2 = input[1] * cospi_1_64 + input[31] * cospi_31_64;
|
|
step1[16] = WRAPLOW(dct_const_round_shift(temp1), 8);
|
|
step1[31] = WRAPLOW(dct_const_round_shift(temp2), 8);
|
|
|
|
temp1 = input[17] * cospi_15_64 - input[15] * cospi_17_64;
|
|
temp2 = input[17] * cospi_17_64 + input[15] * cospi_15_64;
|
|
step1[17] = WRAPLOW(dct_const_round_shift(temp1), 8);
|
|
step1[30] = WRAPLOW(dct_const_round_shift(temp2), 8);
|
|
|
|
temp1 = input[9] * cospi_23_64 - input[23] * cospi_9_64;
|
|
temp2 = input[9] * cospi_9_64 + input[23] * cospi_23_64;
|
|
step1[18] = WRAPLOW(dct_const_round_shift(temp1), 8);
|
|
step1[29] = WRAPLOW(dct_const_round_shift(temp2), 8);
|
|
|
|
temp1 = input[25] * cospi_7_64 - input[7] * cospi_25_64;
|
|
temp2 = input[25] * cospi_25_64 + input[7] * cospi_7_64;
|
|
step1[19] = WRAPLOW(dct_const_round_shift(temp1), 8);
|
|
step1[28] = WRAPLOW(dct_const_round_shift(temp2), 8);
|
|
|
|
temp1 = input[5] * cospi_27_64 - input[27] * cospi_5_64;
|
|
temp2 = input[5] * cospi_5_64 + input[27] * cospi_27_64;
|
|
step1[20] = WRAPLOW(dct_const_round_shift(temp1), 8);
|
|
step1[27] = WRAPLOW(dct_const_round_shift(temp2), 8);
|
|
|
|
temp1 = input[21] * cospi_11_64 - input[11] * cospi_21_64;
|
|
temp2 = input[21] * cospi_21_64 + input[11] * cospi_11_64;
|
|
step1[21] = WRAPLOW(dct_const_round_shift(temp1), 8);
|
|
step1[26] = WRAPLOW(dct_const_round_shift(temp2), 8);
|
|
|
|
temp1 = input[13] * cospi_19_64 - input[19] * cospi_13_64;
|
|
temp2 = input[13] * cospi_13_64 + input[19] * cospi_19_64;
|
|
step1[22] = WRAPLOW(dct_const_round_shift(temp1), 8);
|
|
step1[25] = WRAPLOW(dct_const_round_shift(temp2), 8);
|
|
|
|
temp1 = input[29] * cospi_3_64 - input[3] * cospi_29_64;
|
|
temp2 = input[29] * cospi_29_64 + input[3] * cospi_3_64;
|
|
step1[23] = WRAPLOW(dct_const_round_shift(temp1), 8);
|
|
step1[24] = WRAPLOW(dct_const_round_shift(temp2), 8);
|
|
|
|
// stage 2
|
|
step2[0] = step1[0];
|
|
step2[1] = step1[1];
|
|
step2[2] = step1[2];
|
|
step2[3] = step1[3];
|
|
step2[4] = step1[4];
|
|
step2[5] = step1[5];
|
|
step2[6] = step1[6];
|
|
step2[7] = step1[7];
|
|
|
|
temp1 = step1[8] * cospi_30_64 - step1[15] * cospi_2_64;
|
|
temp2 = step1[8] * cospi_2_64 + step1[15] * cospi_30_64;
|
|
step2[8] = WRAPLOW(dct_const_round_shift(temp1), 8);
|
|
step2[15] = WRAPLOW(dct_const_round_shift(temp2), 8);
|
|
|
|
temp1 = step1[9] * cospi_14_64 - step1[14] * cospi_18_64;
|
|
temp2 = step1[9] * cospi_18_64 + step1[14] * cospi_14_64;
|
|
step2[9] = WRAPLOW(dct_const_round_shift(temp1), 8);
|
|
step2[14] = WRAPLOW(dct_const_round_shift(temp2), 8);
|
|
|
|
temp1 = step1[10] * cospi_22_64 - step1[13] * cospi_10_64;
|
|
temp2 = step1[10] * cospi_10_64 + step1[13] * cospi_22_64;
|
|
step2[10] = WRAPLOW(dct_const_round_shift(temp1), 8);
|
|
step2[13] = WRAPLOW(dct_const_round_shift(temp2), 8);
|
|
|
|
temp1 = step1[11] * cospi_6_64 - step1[12] * cospi_26_64;
|
|
temp2 = step1[11] * cospi_26_64 + step1[12] * cospi_6_64;
|
|
step2[11] = WRAPLOW(dct_const_round_shift(temp1), 8);
|
|
step2[12] = WRAPLOW(dct_const_round_shift(temp2), 8);
|
|
|
|
step2[16] = WRAPLOW(step1[16] + step1[17], 8);
|
|
step2[17] = WRAPLOW(step1[16] - step1[17], 8);
|
|
step2[18] = WRAPLOW(-step1[18] + step1[19], 8);
|
|
step2[19] = WRAPLOW(step1[18] + step1[19], 8);
|
|
step2[20] = WRAPLOW(step1[20] + step1[21], 8);
|
|
step2[21] = WRAPLOW(step1[20] - step1[21], 8);
|
|
step2[22] = WRAPLOW(-step1[22] + step1[23], 8);
|
|
step2[23] = WRAPLOW(step1[22] + step1[23], 8);
|
|
step2[24] = WRAPLOW(step1[24] + step1[25], 8);
|
|
step2[25] = WRAPLOW(step1[24] - step1[25], 8);
|
|
step2[26] = WRAPLOW(-step1[26] + step1[27], 8);
|
|
step2[27] = WRAPLOW(step1[26] + step1[27], 8);
|
|
step2[28] = WRAPLOW(step1[28] + step1[29], 8);
|
|
step2[29] = WRAPLOW(step1[28] - step1[29], 8);
|
|
step2[30] = WRAPLOW(-step1[30] + step1[31], 8);
|
|
step2[31] = WRAPLOW(step1[30] + step1[31], 8);
|
|
|
|
// stage 3
|
|
step1[0] = step2[0];
|
|
step1[1] = step2[1];
|
|
step1[2] = step2[2];
|
|
step1[3] = step2[3];
|
|
|
|
temp1 = step2[4] * cospi_28_64 - step2[7] * cospi_4_64;
|
|
temp2 = step2[4] * cospi_4_64 + step2[7] * cospi_28_64;
|
|
step1[4] = WRAPLOW(dct_const_round_shift(temp1), 8);
|
|
step1[7] = WRAPLOW(dct_const_round_shift(temp2), 8);
|
|
temp1 = step2[5] * cospi_12_64 - step2[6] * cospi_20_64;
|
|
temp2 = step2[5] * cospi_20_64 + step2[6] * cospi_12_64;
|
|
step1[5] = WRAPLOW(dct_const_round_shift(temp1), 8);
|
|
step1[6] = WRAPLOW(dct_const_round_shift(temp2), 8);
|
|
|
|
step1[8] = WRAPLOW(step2[8] + step2[9], 8);
|
|
step1[9] = WRAPLOW(step2[8] - step2[9], 8);
|
|
step1[10] = WRAPLOW(-step2[10] + step2[11], 8);
|
|
step1[11] = WRAPLOW(step2[10] + step2[11], 8);
|
|
step1[12] = WRAPLOW(step2[12] + step2[13], 8);
|
|
step1[13] = WRAPLOW(step2[12] - step2[13], 8);
|
|
step1[14] = WRAPLOW(-step2[14] + step2[15], 8);
|
|
step1[15] = WRAPLOW(step2[14] + step2[15], 8);
|
|
|
|
step1[16] = step2[16];
|
|
step1[31] = step2[31];
|
|
temp1 = -step2[17] * cospi_4_64 + step2[30] * cospi_28_64;
|
|
temp2 = step2[17] * cospi_28_64 + step2[30] * cospi_4_64;
|
|
step1[17] = WRAPLOW(dct_const_round_shift(temp1), 8);
|
|
step1[30] = WRAPLOW(dct_const_round_shift(temp2), 8);
|
|
temp1 = -step2[18] * cospi_28_64 - step2[29] * cospi_4_64;
|
|
temp2 = -step2[18] * cospi_4_64 + step2[29] * cospi_28_64;
|
|
step1[18] = WRAPLOW(dct_const_round_shift(temp1), 8);
|
|
step1[29] = WRAPLOW(dct_const_round_shift(temp2), 8);
|
|
step1[19] = step2[19];
|
|
step1[20] = step2[20];
|
|
temp1 = -step2[21] * cospi_20_64 + step2[26] * cospi_12_64;
|
|
temp2 = step2[21] * cospi_12_64 + step2[26] * cospi_20_64;
|
|
step1[21] = WRAPLOW(dct_const_round_shift(temp1), 8);
|
|
step1[26] = WRAPLOW(dct_const_round_shift(temp2), 8);
|
|
temp1 = -step2[22] * cospi_12_64 - step2[25] * cospi_20_64;
|
|
temp2 = -step2[22] * cospi_20_64 + step2[25] * cospi_12_64;
|
|
step1[22] = WRAPLOW(dct_const_round_shift(temp1), 8);
|
|
step1[25] = WRAPLOW(dct_const_round_shift(temp2), 8);
|
|
step1[23] = step2[23];
|
|
step1[24] = step2[24];
|
|
step1[27] = step2[27];
|
|
step1[28] = step2[28];
|
|
|
|
// stage 4
|
|
temp1 = (step1[0] + step1[1]) * cospi_16_64;
|
|
temp2 = (step1[0] - step1[1]) * cospi_16_64;
|
|
step2[0] = WRAPLOW(dct_const_round_shift(temp1), 8);
|
|
step2[1] = WRAPLOW(dct_const_round_shift(temp2), 8);
|
|
temp1 = step1[2] * cospi_24_64 - step1[3] * cospi_8_64;
|
|
temp2 = step1[2] * cospi_8_64 + step1[3] * cospi_24_64;
|
|
step2[2] = WRAPLOW(dct_const_round_shift(temp1), 8);
|
|
step2[3] = WRAPLOW(dct_const_round_shift(temp2), 8);
|
|
step2[4] = WRAPLOW(step1[4] + step1[5], 8);
|
|
step2[5] = WRAPLOW(step1[4] - step1[5], 8);
|
|
step2[6] = WRAPLOW(-step1[6] + step1[7], 8);
|
|
step2[7] = WRAPLOW(step1[6] + step1[7], 8);
|
|
|
|
step2[8] = step1[8];
|
|
step2[15] = step1[15];
|
|
temp1 = -step1[9] * cospi_8_64 + step1[14] * cospi_24_64;
|
|
temp2 = step1[9] * cospi_24_64 + step1[14] * cospi_8_64;
|
|
step2[9] = WRAPLOW(dct_const_round_shift(temp1), 8);
|
|
step2[14] = WRAPLOW(dct_const_round_shift(temp2), 8);
|
|
temp1 = -step1[10] * cospi_24_64 - step1[13] * cospi_8_64;
|
|
temp2 = -step1[10] * cospi_8_64 + step1[13] * cospi_24_64;
|
|
step2[10] = WRAPLOW(dct_const_round_shift(temp1), 8);
|
|
step2[13] = WRAPLOW(dct_const_round_shift(temp2), 8);
|
|
step2[11] = step1[11];
|
|
step2[12] = step1[12];
|
|
|
|
step2[16] = WRAPLOW(step1[16] + step1[19], 8);
|
|
step2[17] = WRAPLOW(step1[17] + step1[18], 8);
|
|
step2[18] = WRAPLOW(step1[17] - step1[18], 8);
|
|
step2[19] = WRAPLOW(step1[16] - step1[19], 8);
|
|
step2[20] = WRAPLOW(-step1[20] + step1[23], 8);
|
|
step2[21] = WRAPLOW(-step1[21] + step1[22], 8);
|
|
step2[22] = WRAPLOW(step1[21] + step1[22], 8);
|
|
step2[23] = WRAPLOW(step1[20] + step1[23], 8);
|
|
|
|
step2[24] = WRAPLOW(step1[24] + step1[27], 8);
|
|
step2[25] = WRAPLOW(step1[25] + step1[26], 8);
|
|
step2[26] = WRAPLOW(step1[25] - step1[26], 8);
|
|
step2[27] = WRAPLOW(step1[24] - step1[27], 8);
|
|
step2[28] = WRAPLOW(-step1[28] + step1[31], 8);
|
|
step2[29] = WRAPLOW(-step1[29] + step1[30], 8);
|
|
step2[30] = WRAPLOW(step1[29] + step1[30], 8);
|
|
step2[31] = WRAPLOW(step1[28] + step1[31], 8);
|
|
|
|
// stage 5
|
|
step1[0] = WRAPLOW(step2[0] + step2[3], 8);
|
|
step1[1] = WRAPLOW(step2[1] + step2[2], 8);
|
|
step1[2] = WRAPLOW(step2[1] - step2[2], 8);
|
|
step1[3] = WRAPLOW(step2[0] - step2[3], 8);
|
|
step1[4] = step2[4];
|
|
temp1 = (step2[6] - step2[5]) * cospi_16_64;
|
|
temp2 = (step2[5] + step2[6]) * cospi_16_64;
|
|
step1[5] = WRAPLOW(dct_const_round_shift(temp1), 8);
|
|
step1[6] = WRAPLOW(dct_const_round_shift(temp2), 8);
|
|
step1[7] = step2[7];
|
|
|
|
step1[8] = WRAPLOW(step2[8] + step2[11], 8);
|
|
step1[9] = WRAPLOW(step2[9] + step2[10], 8);
|
|
step1[10] = WRAPLOW(step2[9] - step2[10], 8);
|
|
step1[11] = WRAPLOW(step2[8] - step2[11], 8);
|
|
step1[12] = WRAPLOW(-step2[12] + step2[15], 8);
|
|
step1[13] = WRAPLOW(-step2[13] + step2[14], 8);
|
|
step1[14] = WRAPLOW(step2[13] + step2[14], 8);
|
|
step1[15] = WRAPLOW(step2[12] + step2[15], 8);
|
|
|
|
step1[16] = step2[16];
|
|
step1[17] = step2[17];
|
|
temp1 = -step2[18] * cospi_8_64 + step2[29] * cospi_24_64;
|
|
temp2 = step2[18] * cospi_24_64 + step2[29] * cospi_8_64;
|
|
step1[18] = WRAPLOW(dct_const_round_shift(temp1), 8);
|
|
step1[29] = WRAPLOW(dct_const_round_shift(temp2), 8);
|
|
temp1 = -step2[19] * cospi_8_64 + step2[28] * cospi_24_64;
|
|
temp2 = step2[19] * cospi_24_64 + step2[28] * cospi_8_64;
|
|
step1[19] = WRAPLOW(dct_const_round_shift(temp1), 8);
|
|
step1[28] = WRAPLOW(dct_const_round_shift(temp2), 8);
|
|
temp1 = -step2[20] * cospi_24_64 - step2[27] * cospi_8_64;
|
|
temp2 = -step2[20] * cospi_8_64 + step2[27] * cospi_24_64;
|
|
step1[20] = WRAPLOW(dct_const_round_shift(temp1), 8);
|
|
step1[27] = WRAPLOW(dct_const_round_shift(temp2), 8);
|
|
temp1 = -step2[21] * cospi_24_64 - step2[26] * cospi_8_64;
|
|
temp2 = -step2[21] * cospi_8_64 + step2[26] * cospi_24_64;
|
|
step1[21] = WRAPLOW(dct_const_round_shift(temp1), 8);
|
|
step1[26] = WRAPLOW(dct_const_round_shift(temp2), 8);
|
|
step1[22] = step2[22];
|
|
step1[23] = step2[23];
|
|
step1[24] = step2[24];
|
|
step1[25] = step2[25];
|
|
step1[30] = step2[30];
|
|
step1[31] = step2[31];
|
|
|
|
// stage 6
|
|
step2[0] = WRAPLOW(step1[0] + step1[7], 8);
|
|
step2[1] = WRAPLOW(step1[1] + step1[6], 8);
|
|
step2[2] = WRAPLOW(step1[2] + step1[5], 8);
|
|
step2[3] = WRAPLOW(step1[3] + step1[4], 8);
|
|
step2[4] = WRAPLOW(step1[3] - step1[4], 8);
|
|
step2[5] = WRAPLOW(step1[2] - step1[5], 8);
|
|
step2[6] = WRAPLOW(step1[1] - step1[6], 8);
|
|
step2[7] = WRAPLOW(step1[0] - step1[7], 8);
|
|
step2[8] = step1[8];
|
|
step2[9] = step1[9];
|
|
temp1 = (-step1[10] + step1[13]) * cospi_16_64;
|
|
temp2 = (step1[10] + step1[13]) * cospi_16_64;
|
|
step2[10] = WRAPLOW(dct_const_round_shift(temp1), 8);
|
|
step2[13] = WRAPLOW(dct_const_round_shift(temp2), 8);
|
|
temp1 = (-step1[11] + step1[12]) * cospi_16_64;
|
|
temp2 = (step1[11] + step1[12]) * cospi_16_64;
|
|
step2[11] = WRAPLOW(dct_const_round_shift(temp1), 8);
|
|
step2[12] = WRAPLOW(dct_const_round_shift(temp2), 8);
|
|
step2[14] = step1[14];
|
|
step2[15] = step1[15];
|
|
|
|
step2[16] = WRAPLOW(step1[16] + step1[23], 8);
|
|
step2[17] = WRAPLOW(step1[17] + step1[22], 8);
|
|
step2[18] = WRAPLOW(step1[18] + step1[21], 8);
|
|
step2[19] = WRAPLOW(step1[19] + step1[20], 8);
|
|
step2[20] = WRAPLOW(step1[19] - step1[20], 8);
|
|
step2[21] = WRAPLOW(step1[18] - step1[21], 8);
|
|
step2[22] = WRAPLOW(step1[17] - step1[22], 8);
|
|
step2[23] = WRAPLOW(step1[16] - step1[23], 8);
|
|
|
|
step2[24] = WRAPLOW(-step1[24] + step1[31], 8);
|
|
step2[25] = WRAPLOW(-step1[25] + step1[30], 8);
|
|
step2[26] = WRAPLOW(-step1[26] + step1[29], 8);
|
|
step2[27] = WRAPLOW(-step1[27] + step1[28], 8);
|
|
step2[28] = WRAPLOW(step1[27] + step1[28], 8);
|
|
step2[29] = WRAPLOW(step1[26] + step1[29], 8);
|
|
step2[30] = WRAPLOW(step1[25] + step1[30], 8);
|
|
step2[31] = WRAPLOW(step1[24] + step1[31], 8);
|
|
|
|
// stage 7
|
|
step1[0] = WRAPLOW(step2[0] + step2[15], 8);
|
|
step1[1] = WRAPLOW(step2[1] + step2[14], 8);
|
|
step1[2] = WRAPLOW(step2[2] + step2[13], 8);
|
|
step1[3] = WRAPLOW(step2[3] + step2[12], 8);
|
|
step1[4] = WRAPLOW(step2[4] + step2[11], 8);
|
|
step1[5] = WRAPLOW(step2[5] + step2[10], 8);
|
|
step1[6] = WRAPLOW(step2[6] + step2[9], 8);
|
|
step1[7] = WRAPLOW(step2[7] + step2[8], 8);
|
|
step1[8] = WRAPLOW(step2[7] - step2[8], 8);
|
|
step1[9] = WRAPLOW(step2[6] - step2[9], 8);
|
|
step1[10] = WRAPLOW(step2[5] - step2[10], 8);
|
|
step1[11] = WRAPLOW(step2[4] - step2[11], 8);
|
|
step1[12] = WRAPLOW(step2[3] - step2[12], 8);
|
|
step1[13] = WRAPLOW(step2[2] - step2[13], 8);
|
|
step1[14] = WRAPLOW(step2[1] - step2[14], 8);
|
|
step1[15] = WRAPLOW(step2[0] - step2[15], 8);
|
|
|
|
step1[16] = step2[16];
|
|
step1[17] = step2[17];
|
|
step1[18] = step2[18];
|
|
step1[19] = step2[19];
|
|
temp1 = (-step2[20] + step2[27]) * cospi_16_64;
|
|
temp2 = (step2[20] + step2[27]) * cospi_16_64;
|
|
step1[20] = WRAPLOW(dct_const_round_shift(temp1), 8);
|
|
step1[27] = WRAPLOW(dct_const_round_shift(temp2), 8);
|
|
temp1 = (-step2[21] + step2[26]) * cospi_16_64;
|
|
temp2 = (step2[21] + step2[26]) * cospi_16_64;
|
|
step1[21] = WRAPLOW(dct_const_round_shift(temp1), 8);
|
|
step1[26] = WRAPLOW(dct_const_round_shift(temp2), 8);
|
|
temp1 = (-step2[22] + step2[25]) * cospi_16_64;
|
|
temp2 = (step2[22] + step2[25]) * cospi_16_64;
|
|
step1[22] = WRAPLOW(dct_const_round_shift(temp1), 8);
|
|
step1[25] = WRAPLOW(dct_const_round_shift(temp2), 8);
|
|
temp1 = (-step2[23] + step2[24]) * cospi_16_64;
|
|
temp2 = (step2[23] + step2[24]) * cospi_16_64;
|
|
step1[23] = WRAPLOW(dct_const_round_shift(temp1), 8);
|
|
step1[24] = WRAPLOW(dct_const_round_shift(temp2), 8);
|
|
step1[28] = step2[28];
|
|
step1[29] = step2[29];
|
|
step1[30] = step2[30];
|
|
step1[31] = step2[31];
|
|
|
|
// final stage
|
|
output[0] = WRAPLOW(step1[0] + step1[31], 8);
|
|
output[1] = WRAPLOW(step1[1] + step1[30], 8);
|
|
output[2] = WRAPLOW(step1[2] + step1[29], 8);
|
|
output[3] = WRAPLOW(step1[3] + step1[28], 8);
|
|
output[4] = WRAPLOW(step1[4] + step1[27], 8);
|
|
output[5] = WRAPLOW(step1[5] + step1[26], 8);
|
|
output[6] = WRAPLOW(step1[6] + step1[25], 8);
|
|
output[7] = WRAPLOW(step1[7] + step1[24], 8);
|
|
output[8] = WRAPLOW(step1[8] + step1[23], 8);
|
|
output[9] = WRAPLOW(step1[9] + step1[22], 8);
|
|
output[10] = WRAPLOW(step1[10] + step1[21], 8);
|
|
output[11] = WRAPLOW(step1[11] + step1[20], 8);
|
|
output[12] = WRAPLOW(step1[12] + step1[19], 8);
|
|
output[13] = WRAPLOW(step1[13] + step1[18], 8);
|
|
output[14] = WRAPLOW(step1[14] + step1[17], 8);
|
|
output[15] = WRAPLOW(step1[15] + step1[16], 8);
|
|
output[16] = WRAPLOW(step1[15] - step1[16], 8);
|
|
output[17] = WRAPLOW(step1[14] - step1[17], 8);
|
|
output[18] = WRAPLOW(step1[13] - step1[18], 8);
|
|
output[19] = WRAPLOW(step1[12] - step1[19], 8);
|
|
output[20] = WRAPLOW(step1[11] - step1[20], 8);
|
|
output[21] = WRAPLOW(step1[10] - step1[21], 8);
|
|
output[22] = WRAPLOW(step1[9] - step1[22], 8);
|
|
output[23] = WRAPLOW(step1[8] - step1[23], 8);
|
|
output[24] = WRAPLOW(step1[7] - step1[24], 8);
|
|
output[25] = WRAPLOW(step1[6] - step1[25], 8);
|
|
output[26] = WRAPLOW(step1[5] - step1[26], 8);
|
|
output[27] = WRAPLOW(step1[4] - step1[27], 8);
|
|
output[28] = WRAPLOW(step1[3] - step1[28], 8);
|
|
output[29] = WRAPLOW(step1[2] - step1[29], 8);
|
|
output[30] = WRAPLOW(step1[1] - step1[30], 8);
|
|
output[31] = WRAPLOW(step1[0] - step1[31], 8);
|
|
}
|
|
|
|
void vp9_idct32x32_1024_add_c(const tran_low_t *input, uint8_t *dest,
|
|
int stride) {
|
|
tran_low_t out[32 * 32];
|
|
tran_low_t *outptr = out;
|
|
int i, j;
|
|
tran_low_t temp_in[32], temp_out[32];
|
|
|
|
// Rows
|
|
for (i = 0; i < 32; ++i) {
|
|
int16_t zero_coeff[16];
|
|
for (j = 0; j < 16; ++j)
|
|
zero_coeff[j] = input[2 * j] | input[2 * j + 1];
|
|
for (j = 0; j < 8; ++j)
|
|
zero_coeff[j] = zero_coeff[2 * j] | zero_coeff[2 * j + 1];
|
|
for (j = 0; j < 4; ++j)
|
|
zero_coeff[j] = zero_coeff[2 * j] | zero_coeff[2 * j + 1];
|
|
for (j = 0; j < 2; ++j)
|
|
zero_coeff[j] = zero_coeff[2 * j] | zero_coeff[2 * j + 1];
|
|
|
|
if (zero_coeff[0] | zero_coeff[1])
|
|
idct32(input, outptr);
|
|
else
|
|
vpx_memset(outptr, 0, sizeof(tran_low_t) * 32);
|
|
input += 32;
|
|
outptr += 32;
|
|
}
|
|
|
|
// Columns
|
|
for (i = 0; i < 32; ++i) {
|
|
for (j = 0; j < 32; ++j)
|
|
temp_in[j] = out[j * 32 + i];
|
|
idct32(temp_in, temp_out);
|
|
for (j = 0; j < 32; ++j) {
|
|
dest[j * stride + i] = clip_pixel_add(dest[j * stride + i],
|
|
ROUND_POWER_OF_TWO(temp_out[j], 6));
|
|
}
|
|
}
|
|
}
|
|
|
|
#if CONFIG_WAVELETS
|
|
void vp9_idct32x32_noscale_c(const tran_low_t *input, int16_t *dest,
|
|
int stride) {
|
|
tran_low_t out[32 * 32];
|
|
tran_low_t *outptr = out;
|
|
int i, j;
|
|
tran_low_t temp_in[32], temp_out[32];
|
|
|
|
// Rows
|
|
for (i = 0; i < 32; ++i) {
|
|
int16_t zero_coeff[16];
|
|
for (j = 0; j < 16; ++j)
|
|
zero_coeff[j] = input[2 * j] | input[2 * j + 1];
|
|
for (j = 0; j < 8; ++j)
|
|
zero_coeff[j] = zero_coeff[2 * j] | zero_coeff[2 * j + 1];
|
|
for (j = 0; j < 4; ++j)
|
|
zero_coeff[j] = zero_coeff[2 * j] | zero_coeff[2 * j + 1];
|
|
for (j = 0; j < 2; ++j)
|
|
zero_coeff[j] = zero_coeff[2 * j] | zero_coeff[2 * j + 1];
|
|
|
|
if (zero_coeff[0] | zero_coeff[1])
|
|
idct32(input, outptr);
|
|
else
|
|
vpx_memset(outptr, 0, sizeof(tran_low_t) * 32);
|
|
input += 32;
|
|
outptr += 32;
|
|
}
|
|
|
|
// Columns
|
|
for (i = 0; i < 32; ++i) {
|
|
for (j = 0; j < 32; ++j)
|
|
temp_in[j] = out[j * 32 + i];
|
|
idct32(temp_in, temp_out);
|
|
for (j = 0; j < 32; ++j) {
|
|
dest[j * stride + i] = ROUND_POWER_OF_TWO(temp_out[j], 4);
|
|
}
|
|
}
|
|
}
|
|
#endif // CONFIG_WAVELETS
|
|
|
|
void vp9_idct32x32_34_add_c(const tran_low_t *input, uint8_t *dest,
|
|
int stride) {
|
|
tran_low_t out[32 * 32] = {0};
|
|
tran_low_t *outptr = out;
|
|
int i, j;
|
|
tran_low_t temp_in[32], temp_out[32];
|
|
|
|
// Rows
|
|
// only upper-left 8x8 has non-zero coeff
|
|
for (i = 0; i < 8; ++i) {
|
|
idct32(input, outptr);
|
|
input += 32;
|
|
outptr += 32;
|
|
}
|
|
|
|
// Columns
|
|
for (i = 0; i < 32; ++i) {
|
|
for (j = 0; j < 32; ++j)
|
|
temp_in[j] = out[j * 32 + i];
|
|
idct32(temp_in, temp_out);
|
|
for (j = 0; j < 32; ++j) {
|
|
dest[j * stride + i] = clip_pixel_add(dest[j * stride + i],
|
|
ROUND_POWER_OF_TWO(temp_out[j], 6));
|
|
}
|
|
}
|
|
}
|
|
|
|
void vp9_idct32x32_1_add_c(const tran_low_t *input, uint8_t *dest, int stride) {
|
|
int i, j;
|
|
tran_high_t a1;
|
|
|
|
tran_low_t out = WRAPLOW(dct_const_round_shift(input[0] * cospi_16_64), 8);
|
|
out = WRAPLOW(dct_const_round_shift(out * cospi_16_64), 8);
|
|
a1 = ROUND_POWER_OF_TWO(out, 6);
|
|
|
|
for (j = 0; j < 32; ++j) {
|
|
for (i = 0; i < 32; ++i)
|
|
dest[i] = clip_pixel_add(dest[i], a1);
|
|
dest += stride;
|
|
}
|
|
}
|
|
|
|
// idct
|
|
void vp9_idct4x4_add(const tran_low_t *input, uint8_t *dest, int stride,
|
|
int eob) {
|
|
if (eob > 1)
|
|
vp9_idct4x4_16_add(input, dest, stride);
|
|
else
|
|
vp9_idct4x4_1_add(input, dest, stride);
|
|
}
|
|
|
|
|
|
void vp9_iwht4x4_add(const tran_low_t *input, uint8_t *dest, int stride,
|
|
int eob) {
|
|
if (eob > 1)
|
|
vp9_iwht4x4_16_add(input, dest, stride);
|
|
else
|
|
vp9_iwht4x4_1_add(input, dest, stride);
|
|
}
|
|
|
|
void vp9_idct8x8_add(const tran_low_t *input, uint8_t *dest, int stride,
|
|
int eob) {
|
|
// If dc is 1, then input[0] is the reconstructed value, do not need
|
|
// dequantization. Also, when dc is 1, dc is counted in eobs, namely eobs >=1.
|
|
|
|
// The calculation can be simplified if there are not many non-zero dct
|
|
// coefficients. Use eobs to decide what to do.
|
|
// TODO(yunqingwang): "eobs = 1" case is also handled in vp9_short_idct8x8_c.
|
|
// Combine that with code here.
|
|
if (eob == 1)
|
|
// DC only DCT coefficient
|
|
vp9_idct8x8_1_add(input, dest, stride);
|
|
else if (eob <= 12)
|
|
vp9_idct8x8_12_add(input, dest, stride);
|
|
else
|
|
vp9_idct8x8_64_add(input, dest, stride);
|
|
}
|
|
|
|
void vp9_idct16x16_add(const tran_low_t *input, uint8_t *dest, int stride,
|
|
int eob) {
|
|
/* The calculation can be simplified if there are not many non-zero dct
|
|
* coefficients. Use eobs to separate different cases. */
|
|
if (eob == 1)
|
|
/* DC only DCT coefficient. */
|
|
vp9_idct16x16_1_add(input, dest, stride);
|
|
else if (eob <= 10)
|
|
vp9_idct16x16_10_add(input, dest, stride);
|
|
else
|
|
vp9_idct16x16_256_add(input, dest, stride);
|
|
}
|
|
|
|
void vp9_idct32x32_add(const tran_low_t *input, uint8_t *dest, int stride,
|
|
int eob) {
|
|
if (eob == 1)
|
|
vp9_idct32x32_1_add(input, dest, stride);
|
|
else if (eob <= 34)
|
|
// non-zero coeff only in upper-left 8x8
|
|
vp9_idct32x32_34_add(input, dest, stride);
|
|
else
|
|
vp9_idct32x32_1024_add(input, dest, stride);
|
|
}
|
|
|
|
// iht
|
|
void vp9_iht4x4_add(TX_TYPE tx_type, const tran_low_t *input, uint8_t *dest,
|
|
int stride, int eob) {
|
|
if (tx_type == DCT_DCT) {
|
|
vp9_idct4x4_add(input, dest, stride, eob);
|
|
#if CONFIG_EXT_TX
|
|
} else if (is_dst_used(tx_type)) {
|
|
vp9_iht4x4_16_add_c(input, dest, stride, tx_type);
|
|
#endif // CONFIG_EXT_TX
|
|
} else {
|
|
vp9_iht4x4_16_add(input, dest, stride, tx_type);
|
|
}
|
|
}
|
|
|
|
void vp9_iht8x8_add(TX_TYPE tx_type, const tran_low_t *input, uint8_t *dest,
|
|
int stride, int eob) {
|
|
if (tx_type == DCT_DCT) {
|
|
vp9_idct8x8_add(input, dest, stride, eob);
|
|
#if CONFIG_EXT_TX
|
|
} else if (is_dst_used(tx_type)) {
|
|
vp9_iht8x8_64_add_c(input, dest, stride, tx_type);
|
|
#endif // CONFIG_EXT_TX
|
|
} else {
|
|
vp9_iht8x8_64_add(input, dest, stride, tx_type);
|
|
}
|
|
}
|
|
|
|
void vp9_iht16x16_add(TX_TYPE tx_type, const tran_low_t *input, uint8_t *dest,
|
|
int stride, int eob) {
|
|
if (tx_type == DCT_DCT) {
|
|
vp9_idct16x16_add(input, dest, stride, eob);
|
|
#if CONFIG_EXT_TX
|
|
} else if (is_dst_used(tx_type)) {
|
|
vp9_iht16x16_256_add_c(input, dest, stride, tx_type);
|
|
#endif // CONFIG_EXT_TX
|
|
} else {
|
|
vp9_iht16x16_256_add(input, dest, stride, tx_type);
|
|
}
|
|
}
|
|
|
|
#if CONFIG_TX_SKIP
|
|
void vp9_tx_identity_add_rect(const tran_low_t *input, uint8_t *dest,
|
|
int row, int col,
|
|
int stride_in, int stride_out, int shift) {
|
|
int r, c, temp;
|
|
for (r = 0; r < row; r++)
|
|
for (c = 0; c < col; c++) {
|
|
temp = dest[r * stride_out + c] + (input[r * stride_in + c] >> shift);
|
|
dest[r * stride_out + c] = clip_pixel(temp);
|
|
}
|
|
}
|
|
|
|
void vp9_tx_identity_add(const tran_low_t *input, uint8_t *dest,
|
|
int stride, int bs, int shift) {
|
|
vp9_tx_identity_add_rect(input, dest, bs, bs, bs, stride, shift);
|
|
}
|
|
|
|
#if CONFIG_VP9_HIGHBITDEPTH
|
|
void vp9_highbd_tx_identity_add_rect(const tran_low_t *input, uint8_t *dest8,
|
|
int row, int col, int stride_in,
|
|
int stride_out, int shift, int bd) {
|
|
int r, c;
|
|
uint16_t *dest = CONVERT_TO_SHORTPTR(dest8);
|
|
for (r = 0; r < row; r++)
|
|
for (c = 0; c < col; c++) {
|
|
dest[r * stride_out + c] =
|
|
highbd_clip_pixel_add(dest[r * stride_out + c],
|
|
input[r * stride_in + c] >> shift, bd);
|
|
}
|
|
}
|
|
|
|
void vp9_highbd_tx_identity_add(const tran_low_t *input, uint8_t *dest8,
|
|
int stride, int bs, int shift, int bd) {
|
|
vp9_highbd_tx_identity_add_rect(input, dest8, bs, bs, bs, stride, shift, bd);
|
|
}
|
|
#endif // CONFIG_VP9_HIGHBITDEPTH
|
|
#endif // CONFIG_TX_SKIP
|
|
|
|
#if CONFIG_TX64X64
|
|
#define DownshiftMultiplyBy2(x) x * 2
|
|
#define DownshiftMultiply(x) x
|
|
|
|
static void idct16f(double *input, double *output, int stride) {
|
|
static const double C1 = 0.995184726672197;
|
|
static const double C2 = 0.98078528040323;
|
|
static const double C3 = 0.956940335732209;
|
|
static const double C4 = 0.923879532511287;
|
|
static const double C5 = 0.881921264348355;
|
|
static const double C6 = 0.831469612302545;
|
|
static const double C7 = 0.773010453362737;
|
|
static const double C8 = 0.707106781186548;
|
|
static const double C9 = 0.634393284163646;
|
|
static const double C10 = 0.555570233019602;
|
|
static const double C11 = 0.471396736825998;
|
|
static const double C12 = 0.38268343236509;
|
|
static const double C13 = 0.290284677254462;
|
|
static const double C14 = 0.195090322016128;
|
|
static const double C15 = 0.098017140329561;
|
|
|
|
double step[16];
|
|
double intermediate[16];
|
|
double temp1, temp2;
|
|
|
|
// step 1 and 2
|
|
step[ 0] = input[stride*0] + input[stride*8];
|
|
step[ 1] = input[stride*0] - input[stride*8];
|
|
|
|
temp1 = input[stride*4]*C12;
|
|
temp2 = input[stride*12]*C4;
|
|
|
|
temp1 -= temp2;
|
|
temp1 = DownshiftMultiply(temp1);
|
|
temp1 *= C8;
|
|
|
|
step[ 2] = DownshiftMultiplyBy2(temp1);
|
|
|
|
temp1 = input[stride*4]*C4;
|
|
temp2 = input[stride*12]*C12;
|
|
temp1 += temp2;
|
|
temp1 = DownshiftMultiply(temp1);
|
|
temp1 *= C8;
|
|
step[ 3] = DownshiftMultiplyBy2(temp1);
|
|
|
|
temp1 = input[stride*2]*C8;
|
|
temp1 = DownshiftMultiplyBy2(temp1);
|
|
temp2 = input[stride*6] + input[stride*10];
|
|
|
|
step[ 4] = temp1 + temp2;
|
|
step[ 5] = temp1 - temp2;
|
|
|
|
temp1 = input[stride*14]*C8;
|
|
temp1 = DownshiftMultiplyBy2(temp1);
|
|
temp2 = input[stride*6] - input[stride*10];
|
|
|
|
step[ 6] = temp2 - temp1;
|
|
step[ 7] = temp2 + temp1;
|
|
|
|
// for odd input
|
|
temp1 = input[stride*3]*C12;
|
|
temp2 = input[stride*13]*C4;
|
|
temp1 += temp2;
|
|
temp1 = DownshiftMultiply(temp1);
|
|
temp1 *= C8;
|
|
intermediate[ 8] = DownshiftMultiplyBy2(temp1);
|
|
|
|
temp1 = input[stride*3]*C4;
|
|
temp2 = input[stride*13]*C12;
|
|
temp2 -= temp1;
|
|
temp2 = DownshiftMultiply(temp2);
|
|
temp2 *= C8;
|
|
intermediate[ 9] = DownshiftMultiplyBy2(temp2);
|
|
|
|
intermediate[10] = DownshiftMultiplyBy2(input[stride*9]*C8);
|
|
intermediate[11] = input[stride*15] - input[stride*1];
|
|
intermediate[12] = input[stride*15] + input[stride*1];
|
|
intermediate[13] = DownshiftMultiplyBy2((input[stride*7]*C8));
|
|
|
|
temp1 = input[stride*11]*C12;
|
|
temp2 = input[stride*5]*C4;
|
|
temp2 -= temp1;
|
|
temp2 = DownshiftMultiply(temp2);
|
|
temp2 *= C8;
|
|
intermediate[14] = DownshiftMultiplyBy2(temp2);
|
|
|
|
temp1 = input[stride*11]*C4;
|
|
temp2 = input[stride*5]*C12;
|
|
temp1 += temp2;
|
|
temp1 = DownshiftMultiply(temp1);
|
|
temp1 *= C8;
|
|
intermediate[15] = DownshiftMultiplyBy2(temp1);
|
|
|
|
step[ 8] = intermediate[ 8] + intermediate[14];
|
|
step[ 9] = intermediate[ 9] + intermediate[15];
|
|
step[10] = intermediate[10] + intermediate[11];
|
|
step[11] = intermediate[10] - intermediate[11];
|
|
step[12] = intermediate[12] + intermediate[13];
|
|
step[13] = intermediate[12] - intermediate[13];
|
|
step[14] = intermediate[ 8] - intermediate[14];
|
|
step[15] = intermediate[ 9] - intermediate[15];
|
|
|
|
// step 3
|
|
output[stride*0] = step[ 0] + step[ 3];
|
|
output[stride*1] = step[ 1] + step[ 2];
|
|
output[stride*2] = step[ 1] - step[ 2];
|
|
output[stride*3] = step[ 0] - step[ 3];
|
|
|
|
temp1 = step[ 4]*C14;
|
|
temp2 = step[ 7]*C2;
|
|
temp1 -= temp2;
|
|
output[stride*4] = DownshiftMultiply(temp1);
|
|
|
|
temp1 = step[ 4]*C2;
|
|
temp2 = step[ 7]*C14;
|
|
temp1 += temp2;
|
|
output[stride*7] = DownshiftMultiply(temp1);
|
|
|
|
temp1 = step[ 5]*C10;
|
|
temp2 = step[ 6]*C6;
|
|
temp1 -= temp2;
|
|
output[stride*5] = DownshiftMultiply(temp1);
|
|
|
|
temp1 = step[ 5]*C6;
|
|
temp2 = step[ 6]*C10;
|
|
temp1 += temp2;
|
|
output[stride*6] = DownshiftMultiply(temp1);
|
|
|
|
output[stride*8] = step[ 8] + step[11];
|
|
output[stride*9] = step[ 9] + step[10];
|
|
output[stride*10] = step[ 9] - step[10];
|
|
output[stride*11] = step[ 8] - step[11];
|
|
output[stride*12] = step[12] + step[15];
|
|
output[stride*13] = step[13] + step[14];
|
|
output[stride*14] = step[13] - step[14];
|
|
output[stride*15] = step[12] - step[15];
|
|
|
|
// output 4
|
|
step[ 0] = output[stride*0] + output[stride*7];
|
|
step[ 1] = output[stride*1] + output[stride*6];
|
|
step[ 2] = output[stride*2] + output[stride*5];
|
|
step[ 3] = output[stride*3] + output[stride*4];
|
|
step[ 4] = output[stride*3] - output[stride*4];
|
|
step[ 5] = output[stride*2] - output[stride*5];
|
|
step[ 6] = output[stride*1] - output[stride*6];
|
|
step[ 7] = output[stride*0] - output[stride*7];
|
|
|
|
temp1 = output[stride*8]*C7;
|
|
temp2 = output[stride*15]*C9;
|
|
temp1 -= temp2;
|
|
step[ 8] = DownshiftMultiply(temp1);
|
|
|
|
temp1 = output[stride*9]*C11;
|
|
temp2 = output[stride*14]*C5;
|
|
temp1 += temp2;
|
|
step[ 9] = DownshiftMultiply(temp1);
|
|
|
|
temp1 = output[stride*10]*C3;
|
|
temp2 = output[stride*13]*C13;
|
|
temp1 -= temp2;
|
|
step[10] = DownshiftMultiply(temp1);
|
|
|
|
temp1 = output[stride*11]*C15;
|
|
temp2 = output[stride*12]*C1;
|
|
temp1 += temp2;
|
|
step[11] = DownshiftMultiply(temp1);
|
|
|
|
temp1 = output[stride*11]*C1;
|
|
temp2 = output[stride*12]*C15;
|
|
temp2 -= temp1;
|
|
step[12] = DownshiftMultiply(temp2);
|
|
|
|
temp1 = output[stride*10]*C13;
|
|
temp2 = output[stride*13]*C3;
|
|
temp1 += temp2;
|
|
step[13] = DownshiftMultiply(temp1);
|
|
|
|
temp1 = output[stride*9]*C5;
|
|
temp2 = output[stride*14]*C11;
|
|
temp2 -= temp1;
|
|
step[14] = DownshiftMultiply(temp2);
|
|
|
|
temp1 = output[stride*8]*C9;
|
|
temp2 = output[stride*15]*C7;
|
|
temp1 += temp2;
|
|
step[15] = DownshiftMultiply(temp1);
|
|
|
|
// step 5
|
|
output[stride*0] = step[0] + step[15];
|
|
output[stride*1] = step[1] + step[14];
|
|
output[stride*2] = step[2] + step[13];
|
|
output[stride*3] = step[3] + step[12];
|
|
output[stride*4] = step[4] + step[11];
|
|
output[stride*5] = step[5] + step[10];
|
|
output[stride*6] = step[6] + step[ 9];
|
|
output[stride*7] = step[7] + step[ 8];
|
|
|
|
output[stride*15] = step[0] - step[15];
|
|
output[stride*14] = step[1] - step[14];
|
|
output[stride*13] = step[2] - step[13];
|
|
output[stride*12] = step[3] - step[12];
|
|
output[stride*11] = step[4] - step[11];
|
|
output[stride*10] = step[5] - step[10];
|
|
output[stride*9] = step[6] - step[ 9];
|
|
output[stride*8] = step[7] - step[ 8];
|
|
}
|
|
|
|
static void butterfly_32_idct_1d(double *input, double *output, int stride) {
|
|
static const double C1 = 0.998795456205; // cos(pi * 1 / 64)
|
|
static const double C3 = 0.989176509965; // cos(pi * 3 / 64)
|
|
static const double C5 = 0.970031253195; // cos(pi * 5 / 64)
|
|
static const double C7 = 0.941544065183; // cos(pi * 7 / 64)
|
|
static const double C9 = 0.903989293123; // cos(pi * 9 / 64)
|
|
static const double C11 = 0.857728610000; // cos(pi * 11 / 64)
|
|
static const double C13 = 0.803207531481; // cos(pi * 13 / 64)
|
|
static const double C15 = 0.740951125355; // cos(pi * 15 / 64)
|
|
static const double C16 = 0.707106781187; // cos(pi * 16 / 64)
|
|
static const double C17 = 0.671558954847; // cos(pi * 17 / 64)
|
|
static const double C19 = 0.595699304492; // cos(pi * 19 / 64)
|
|
static const double C21 = 0.514102744193; // cos(pi * 21 / 64)
|
|
static const double C23 = 0.427555093430; // cos(pi * 23 / 64)
|
|
static const double C25 = 0.336889853392; // cos(pi * 25 / 64)
|
|
static const double C27 = 0.242980179903; // cos(pi * 27 / 64)
|
|
static const double C29 = 0.146730474455; // cos(pi * 29 / 64)
|
|
static const double C31 = 0.049067674327; // cos(pi * 31 / 64)
|
|
|
|
double step1[32];
|
|
double step2[32];
|
|
|
|
step1[ 0] = input[stride*0];
|
|
step1[ 1] = input[stride*2];
|
|
step1[ 2] = input[stride*4];
|
|
step1[ 3] = input[stride*6];
|
|
step1[ 4] = input[stride*8];
|
|
step1[ 5] = input[stride*10];
|
|
step1[ 6] = input[stride*12];
|
|
step1[ 7] = input[stride*14];
|
|
step1[ 8] = input[stride*16];
|
|
step1[ 9] = input[stride*18];
|
|
step1[10] = input[stride*20];
|
|
step1[11] = input[stride*22];
|
|
step1[12] = input[stride*24];
|
|
step1[13] = input[stride*26];
|
|
step1[14] = input[stride*28];
|
|
step1[15] = input[stride*30];
|
|
|
|
step1[16] = DownshiftMultiplyBy2(input[stride*1]*C16);
|
|
step1[17] = (input[stride*3] + input[stride*1]);
|
|
step1[18] = (input[stride*5] + input[stride*3]);
|
|
step1[19] = (input[stride*7] + input[stride*5]);
|
|
step1[20] = (input[stride*9] + input[stride*7]);
|
|
step1[21] = (input[stride*11] + input[stride*9]);
|
|
step1[22] = (input[stride*13] + input[stride*11]);
|
|
step1[23] = (input[stride*15] + input[stride*13]);
|
|
step1[24] = (input[stride*17] + input[stride*15]);
|
|
step1[25] = (input[stride*19] + input[stride*17]);
|
|
step1[26] = (input[stride*21] + input[stride*19]);
|
|
step1[27] = (input[stride*23] + input[stride*21]);
|
|
step1[28] = (input[stride*25] + input[stride*23]);
|
|
step1[29] = (input[stride*27] + input[stride*25]);
|
|
step1[30] = (input[stride*29] + input[stride*27]);
|
|
step1[31] = (input[stride*31] + input[stride*29]);
|
|
|
|
idct16f(step1, step2, 1);
|
|
idct16f(step1 + 16, step2 + 16, 1);
|
|
|
|
step2[16] = DownshiftMultiply(step2[16] / (2*C1));
|
|
step2[17] = DownshiftMultiply(step2[17] / (2*C3));
|
|
step2[18] = DownshiftMultiply(step2[18] / (2*C5));
|
|
step2[19] = DownshiftMultiply(step2[19] / (2*C7));
|
|
step2[20] = DownshiftMultiply(step2[20] / (2*C9));
|
|
step2[21] = DownshiftMultiply(step2[21] / (2*C11));
|
|
step2[22] = DownshiftMultiply(step2[22] / (2*C13));
|
|
step2[23] = DownshiftMultiply(step2[23] / (2*C15));
|
|
step2[24] = DownshiftMultiply(step2[24] / (2*C17));
|
|
step2[25] = DownshiftMultiply(step2[25] / (2*C19));
|
|
step2[26] = DownshiftMultiply(step2[26] / (2*C21));
|
|
step2[27] = DownshiftMultiply(step2[27] / (2*C23));
|
|
step2[28] = DownshiftMultiply(step2[28] / (2*C25));
|
|
step2[29] = DownshiftMultiply(step2[29] / (2*C27));
|
|
step2[30] = DownshiftMultiply(step2[30] / (2*C29));
|
|
step2[31] = DownshiftMultiply(step2[31] / (2*C31));
|
|
|
|
output[stride* 0] = step2[ 0] + step2[16];
|
|
output[stride* 1] = step2[ 1] + step2[17];
|
|
output[stride* 2] = step2[ 2] + step2[18];
|
|
output[stride* 3] = step2[ 3] + step2[19];
|
|
output[stride* 4] = step2[ 4] + step2[20];
|
|
output[stride* 5] = step2[ 5] + step2[21];
|
|
output[stride* 6] = step2[ 6] + step2[22];
|
|
output[stride* 7] = step2[ 7] + step2[23];
|
|
output[stride* 8] = step2[ 8] + step2[24];
|
|
output[stride* 9] = step2[ 9] + step2[25];
|
|
output[stride*10] = step2[10] + step2[26];
|
|
output[stride*11] = step2[11] + step2[27];
|
|
output[stride*12] = step2[12] + step2[28];
|
|
output[stride*13] = step2[13] + step2[29];
|
|
output[stride*14] = step2[14] + step2[30];
|
|
output[stride*15] = step2[15] + step2[31];
|
|
output[stride*16] = step2[15] - step2[(31 - 0)];
|
|
output[stride*17] = step2[14] - step2[(31 - 1)];
|
|
output[stride*18] = step2[13] - step2[(31 - 2)];
|
|
output[stride*19] = step2[12] - step2[(31 - 3)];
|
|
output[stride*20] = step2[11] - step2[(31 - 4)];
|
|
output[stride*21] = step2[10] - step2[(31 - 5)];
|
|
output[stride*22] = step2[ 9] - step2[(31 - 6)];
|
|
output[stride*23] = step2[ 8] - step2[(31 - 7)];
|
|
output[stride*24] = step2[ 7] - step2[(31 - 8)];
|
|
output[stride*25] = step2[ 6] - step2[(31 - 9)];
|
|
output[stride*26] = step2[ 5] - step2[(31 - 10)];
|
|
output[stride*27] = step2[ 4] - step2[(31 - 11)];
|
|
output[stride*28] = step2[ 3] - step2[(31 - 12)];
|
|
output[stride*29] = step2[ 2] - step2[(31 - 13)];
|
|
output[stride*30] = step2[ 1] - step2[(31 - 14)];
|
|
output[stride*31] = step2[ 0] - step2[(31 - 15)];
|
|
}
|
|
|
|
static void butterfly_64_idct_1d(double *input, double *output, int stride) {
|
|
double step1[64], step2[64];
|
|
int i;
|
|
static const double C[64] = {
|
|
1.00000000000000000000, // cos(0 * pi / 128)
|
|
0.99969881869620424997, // cos(1 * pi / 128)
|
|
0.99879545620517240501, // cos(2 * pi / 128)
|
|
0.99729045667869020697, // cos(3 * pi / 128)
|
|
0.99518472667219692873, // cos(4 * pi / 128)
|
|
0.99247953459870996706, // cos(5 * pi / 128)
|
|
0.98917650996478101444, // cos(6 * pi / 128)
|
|
0.98527764238894122162, // cos(7 * pi / 128)
|
|
0.98078528040323043058, // cos(8 * pi / 128)
|
|
0.97570213003852857003, // cos(9 * pi / 128)
|
|
0.97003125319454397424, // cos(10 * pi / 128)
|
|
0.96377606579543984022, // cos(11 * pi / 128)
|
|
0.95694033573220882438, // cos(12 * pi / 128)
|
|
0.94952818059303667475, // cos(13 * pi / 128)
|
|
0.94154406518302080631, // cos(14 * pi / 128)
|
|
0.93299279883473895669, // cos(15 * pi / 128)
|
|
0.92387953251128673848, // cos(16 * pi / 128)
|
|
0.91420975570353069095, // cos(17 * pi / 128)
|
|
0.90398929312344333820, // cos(18 * pi / 128)
|
|
0.89322430119551532446, // cos(19 * pi / 128)
|
|
0.88192126434835504956, // cos(20 * pi / 128)
|
|
0.87008699110871146054, // cos(21 * pi / 128)
|
|
0.85772861000027211809, // cos(22 * pi / 128)
|
|
0.84485356524970711689, // cos(23 * pi / 128)
|
|
0.83146961230254523567, // cos(24 * pi / 128)
|
|
0.81758481315158371139, // cos(25 * pi / 128)
|
|
0.80320753148064494287, // cos(26 * pi / 128)
|
|
0.78834642762660633863, // cos(27 * pi / 128)
|
|
0.77301045336273699338, // cos(28 * pi / 128)
|
|
0.75720884650648456748, // cos(29 * pi / 128)
|
|
0.74095112535495921691, // cos(30 * pi / 128)
|
|
0.72424708295146700276, // cos(31 * pi / 128)
|
|
0.70710678118654757274, // cos(32 * pi / 128)
|
|
0.68954054473706694051, // cos(33 * pi / 128)
|
|
0.67155895484701844111, // cos(34 * pi / 128)
|
|
0.65317284295377686654, // cos(35 * pi / 128)
|
|
0.63439328416364559882, // cos(36 * pi / 128)
|
|
0.61523159058062693028, // cos(37 * pi / 128)
|
|
0.59569930449243346793, // cos(38 * pi / 128)
|
|
0.57580819141784544968, // cos(39 * pi / 128)
|
|
0.55557023301960228867, // cos(40 * pi / 128)
|
|
0.53499761988709737537, // cos(41 * pi / 128)
|
|
0.51410274419322177231, // cos(42 * pi / 128)
|
|
0.49289819222978414892, // cos(43 * pi / 128)
|
|
0.47139673682599780857, // cos(44 * pi / 128)
|
|
0.44961132965460659516, // cos(45 * pi / 128)
|
|
0.42755509343028219593, // cos(46 * pi / 128)
|
|
0.40524131400498980549, // cos(47 * pi / 128)
|
|
0.38268343236508983729, // cos(48 * pi / 128)
|
|
0.35989503653498827740, // cos(49 * pi / 128)
|
|
0.33688985339222005111, // cos(50 * pi / 128)
|
|
0.31368174039889151761, // cos(51 * pi / 128)
|
|
0.29028467725446227554, // cos(52 * pi / 128)
|
|
0.26671275747489842090, // cos(53 * pi / 128)
|
|
0.24298017990326398197, // cos(54 * pi / 128)
|
|
0.21910124015686976984, // cos(55 * pi / 128)
|
|
0.19509032201612830359, // cos(56 * pi / 128)
|
|
0.17096188876030135595, // cos(57 * pi / 128)
|
|
0.14673047445536174793, // cos(58 * pi / 128)
|
|
0.12241067519921627893, // cos(59 * pi / 128)
|
|
0.09801714032956077016, // cos(60 * pi / 128)
|
|
0.07356456359966745406, // cos(61 * pi / 128)
|
|
0.04906767432741813290, // cos(62 * pi / 128)
|
|
0.02454122852291226731, // cos(63 * pi / 128)
|
|
};
|
|
|
|
for (i = 0; i < 64; i += 2) {
|
|
step1[i / 2] = input[stride * i];
|
|
}
|
|
step1[32] = DownshiftMultiplyBy2(input[stride*1] * C[32]);
|
|
for (i = 3; i < 64; i+=2) {
|
|
step1[32 + i/2] = (input[stride * i] + input[stride * (i - 2)]);
|
|
}
|
|
|
|
butterfly_32_idct_1d(step1, step2, 1);
|
|
butterfly_32_idct_1d(step1 + 32, step2 + 32, 1);
|
|
|
|
for (i = 32; i < 64; ++i) {
|
|
step2[i] = DownshiftMultiply(step2[i] / (2 * C[(i - 32) * 2 + 1]));
|
|
}
|
|
|
|
for (i = 0; i < 32; ++i) {
|
|
output[stride * i] = step2[i] + step2[32 + i];
|
|
}
|
|
|
|
for (i = 0; i < 32; ++i) {
|
|
output[stride * (i + 32)] = step2[31 - i] - step2[63 - i];
|
|
}
|
|
}
|
|
|
|
void vp9_idct64x64_4096_add_c(const tran_low_t *input, uint8_t *dest,
|
|
int stride) {
|
|
// vp9_clear_system_state(); // Make it simd safe : __asm emms;
|
|
{
|
|
double out[64 * 64], out2[64 * 64];
|
|
int i, j;
|
|
// First transform rows
|
|
for (i = 0; i < 64; ++i) {
|
|
double temp_in[64], temp_out[64];
|
|
for (j = 0; j < 64; ++j)
|
|
temp_in[j] = input[j + i * 64];
|
|
butterfly_64_idct_1d(temp_in, temp_out, 1);
|
|
for (j = 0; j < 64; ++j)
|
|
out[j + i * 64] = temp_out[j];
|
|
}
|
|
// Then transform columns
|
|
for (i = 0; i < 64; ++i) {
|
|
double temp_in[64], temp_out[64];
|
|
for (j = 0; j < 64; ++j)
|
|
temp_in[j] = out[j * 64 + i];
|
|
butterfly_64_idct_1d(temp_in, temp_out, 1);
|
|
for (j = 0; j < 64; ++j)
|
|
out2[j * 64 + i] = temp_out[j];
|
|
}
|
|
|
|
for (j = 0; j < 64; ++j) {
|
|
for (i = 0; i < 64; ++i)
|
|
dest[i] = clip_pixel_add(dest[i], round(out2[j * 64 + i] / 128));
|
|
dest += stride;
|
|
}
|
|
}
|
|
// vp9_clear_system_state(); // Make it simd safe : __asm emms;
|
|
}
|
|
|
|
void vp9_idct64x64_add(const tran_low_t *input, uint8_t *dest,
|
|
int stride, int eob) {
|
|
(void) eob;
|
|
vp9_idct64x64_4096_add_c(input, dest, stride);
|
|
}
|
|
#endif
|
|
|
|
#if CONFIG_VP9_HIGHBITDEPTH
|
|
void vp9_highbd_iwht4x4_16_add_c(const tran_low_t *input, uint8_t *dest8,
|
|
int stride, int bd) {
|
|
/* 4-point reversible, orthonormal inverse Walsh-Hadamard in 3.5 adds,
|
|
0.5 shifts per pixel. */
|
|
int i;
|
|
tran_low_t output[16];
|
|
tran_high_t a1, b1, c1, d1, e1;
|
|
const tran_low_t *ip = input;
|
|
tran_low_t *op = output;
|
|
uint16_t *dest = CONVERT_TO_SHORTPTR(dest8);
|
|
|
|
for (i = 0; i < 4; i++) {
|
|
a1 = ip[0] >> UNIT_QUANT_SHIFT;
|
|
c1 = ip[1] >> UNIT_QUANT_SHIFT;
|
|
d1 = ip[2] >> UNIT_QUANT_SHIFT;
|
|
b1 = ip[3] >> UNIT_QUANT_SHIFT;
|
|
a1 += c1;
|
|
d1 -= b1;
|
|
e1 = (a1 - d1) >> 1;
|
|
b1 = e1 - b1;
|
|
c1 = e1 - c1;
|
|
a1 -= b1;
|
|
d1 += c1;
|
|
op[0] = WRAPLOW(a1, bd);
|
|
op[1] = WRAPLOW(b1, bd);
|
|
op[2] = WRAPLOW(c1, bd);
|
|
op[3] = WRAPLOW(d1, bd);
|
|
ip += 4;
|
|
op += 4;
|
|
}
|
|
|
|
ip = output;
|
|
for (i = 0; i < 4; i++) {
|
|
a1 = ip[4 * 0];
|
|
c1 = ip[4 * 1];
|
|
d1 = ip[4 * 2];
|
|
b1 = ip[4 * 3];
|
|
a1 += c1;
|
|
d1 -= b1;
|
|
e1 = (a1 - d1) >> 1;
|
|
b1 = e1 - b1;
|
|
c1 = e1 - c1;
|
|
a1 -= b1;
|
|
d1 += c1;
|
|
dest[stride * 0] = highbd_clip_pixel_add(dest[stride * 0], a1, bd);
|
|
dest[stride * 1] = highbd_clip_pixel_add(dest[stride * 1], b1, bd);
|
|
dest[stride * 2] = highbd_clip_pixel_add(dest[stride * 2], c1, bd);
|
|
dest[stride * 3] = highbd_clip_pixel_add(dest[stride * 3], d1, bd);
|
|
|
|
ip++;
|
|
dest++;
|
|
}
|
|
}
|
|
|
|
void vp9_highbd_iwht4x4_1_add_c(const tran_low_t *in, uint8_t *dest8,
|
|
int dest_stride, int bd) {
|
|
int i;
|
|
tran_high_t a1, e1;
|
|
tran_low_t tmp[4];
|
|
const tran_low_t *ip = in;
|
|
tran_low_t *op = tmp;
|
|
uint16_t *dest = CONVERT_TO_SHORTPTR(dest8);
|
|
(void) bd;
|
|
|
|
a1 = ip[0] >> UNIT_QUANT_SHIFT;
|
|
e1 = a1 >> 1;
|
|
a1 -= e1;
|
|
op[0] = WRAPLOW(a1, bd);
|
|
op[1] = op[2] = op[3] = WRAPLOW(e1, bd);
|
|
|
|
ip = tmp;
|
|
for (i = 0; i < 4; i++) {
|
|
e1 = ip[0] >> 1;
|
|
a1 = ip[0] - e1;
|
|
dest[dest_stride * 0] = highbd_clip_pixel_add(
|
|
dest[dest_stride * 0], a1, bd);
|
|
dest[dest_stride * 1] = highbd_clip_pixel_add(
|
|
dest[dest_stride * 1], e1, bd);
|
|
dest[dest_stride * 2] = highbd_clip_pixel_add(
|
|
dest[dest_stride * 2], e1, bd);
|
|
dest[dest_stride * 3] = highbd_clip_pixel_add(
|
|
dest[dest_stride * 3], e1, bd);
|
|
ip++;
|
|
dest++;
|
|
}
|
|
}
|
|
|
|
void vp9_highbd_idct4(const tran_low_t *input, tran_low_t *output, int bd) {
|
|
tran_low_t step[4];
|
|
tran_high_t temp1, temp2;
|
|
(void) bd;
|
|
// stage 1
|
|
temp1 = (input[0] + input[2]) * cospi_16_64;
|
|
temp2 = (input[0] - input[2]) * cospi_16_64;
|
|
step[0] = WRAPLOW(dct_const_round_shift(temp1), bd);
|
|
step[1] = WRAPLOW(dct_const_round_shift(temp2), bd);
|
|
temp1 = input[1] * cospi_24_64 - input[3] * cospi_8_64;
|
|
temp2 = input[1] * cospi_8_64 + input[3] * cospi_24_64;
|
|
step[2] = WRAPLOW(dct_const_round_shift(temp1), bd);
|
|
step[3] = WRAPLOW(dct_const_round_shift(temp2), bd);
|
|
|
|
// stage 2
|
|
output[0] = WRAPLOW(step[0] + step[3], bd);
|
|
output[1] = WRAPLOW(step[1] + step[2], bd);
|
|
output[2] = WRAPLOW(step[1] - step[2], bd);
|
|
output[3] = WRAPLOW(step[0] - step[3], bd);
|
|
}
|
|
|
|
void vp9_highbd_idct4x4_16_add_c(const tran_low_t *input, uint8_t *dest8,
|
|
int stride, int bd) {
|
|
tran_low_t out[4 * 4];
|
|
tran_low_t *outptr = out;
|
|
int i, j;
|
|
tran_low_t temp_in[4], temp_out[4];
|
|
uint16_t *dest = CONVERT_TO_SHORTPTR(dest8);
|
|
|
|
// Rows
|
|
for (i = 0; i < 4; ++i) {
|
|
vp9_highbd_idct4(input, outptr, bd);
|
|
input += 4;
|
|
outptr += 4;
|
|
}
|
|
|
|
// Columns
|
|
for (i = 0; i < 4; ++i) {
|
|
for (j = 0; j < 4; ++j)
|
|
temp_in[j] = out[j * 4 + i];
|
|
vp9_highbd_idct4(temp_in, temp_out, bd);
|
|
for (j = 0; j < 4; ++j) {
|
|
dest[j * stride + i] = highbd_clip_pixel_add(
|
|
dest[j * stride + i], ROUND_POWER_OF_TWO(temp_out[j], 4), bd);
|
|
}
|
|
}
|
|
}
|
|
|
|
void vp9_highbd_idct4x4_1_add_c(const tran_low_t *input, uint8_t *dest8,
|
|
int dest_stride, int bd) {
|
|
int i;
|
|
tran_high_t a1;
|
|
tran_low_t out = WRAPLOW(dct_const_round_shift(input[0] * cospi_16_64), bd);
|
|
uint16_t *dest = CONVERT_TO_SHORTPTR(dest8);
|
|
|
|
out = WRAPLOW(dct_const_round_shift(out * cospi_16_64), bd);
|
|
a1 = ROUND_POWER_OF_TWO(out, 4);
|
|
|
|
for (i = 0; i < 4; i++) {
|
|
dest[0] = highbd_clip_pixel_add(dest[0], a1, bd);
|
|
dest[1] = highbd_clip_pixel_add(dest[1], a1, bd);
|
|
dest[2] = highbd_clip_pixel_add(dest[2], a1, bd);
|
|
dest[3] = highbd_clip_pixel_add(dest[3], a1, bd);
|
|
dest += dest_stride;
|
|
}
|
|
}
|
|
|
|
void vp9_highbd_idct8(const tran_low_t *input, tran_low_t *output, int bd) {
|
|
tran_low_t step1[8], step2[8];
|
|
tran_high_t temp1, temp2;
|
|
// stage 1
|
|
step1[0] = input[0];
|
|
step1[2] = input[4];
|
|
step1[1] = input[2];
|
|
step1[3] = input[6];
|
|
temp1 = input[1] * cospi_28_64 - input[7] * cospi_4_64;
|
|
temp2 = input[1] * cospi_4_64 + input[7] * cospi_28_64;
|
|
step1[4] = WRAPLOW(dct_const_round_shift(temp1), bd);
|
|
step1[7] = WRAPLOW(dct_const_round_shift(temp2), bd);
|
|
temp1 = input[5] * cospi_12_64 - input[3] * cospi_20_64;
|
|
temp2 = input[5] * cospi_20_64 + input[3] * cospi_12_64;
|
|
step1[5] = WRAPLOW(dct_const_round_shift(temp1), bd);
|
|
step1[6] = WRAPLOW(dct_const_round_shift(temp2), bd);
|
|
|
|
// stage 2 & stage 3 - even half
|
|
vp9_highbd_idct4(step1, step1, bd);
|
|
|
|
// stage 2 - odd half
|
|
step2[4] = WRAPLOW(step1[4] + step1[5], bd);
|
|
step2[5] = WRAPLOW(step1[4] - step1[5], bd);
|
|
step2[6] = WRAPLOW(-step1[6] + step1[7], bd);
|
|
step2[7] = WRAPLOW(step1[6] + step1[7], bd);
|
|
|
|
// stage 3 - odd half
|
|
step1[4] = step2[4];
|
|
temp1 = (step2[6] - step2[5]) * cospi_16_64;
|
|
temp2 = (step2[5] + step2[6]) * cospi_16_64;
|
|
step1[5] = WRAPLOW(dct_const_round_shift(temp1), bd);
|
|
step1[6] = WRAPLOW(dct_const_round_shift(temp2), bd);
|
|
step1[7] = step2[7];
|
|
|
|
// stage 4
|
|
output[0] = WRAPLOW(step1[0] + step1[7], bd);
|
|
output[1] = WRAPLOW(step1[1] + step1[6], bd);
|
|
output[2] = WRAPLOW(step1[2] + step1[5], bd);
|
|
output[3] = WRAPLOW(step1[3] + step1[4], bd);
|
|
output[4] = WRAPLOW(step1[3] - step1[4], bd);
|
|
output[5] = WRAPLOW(step1[2] - step1[5], bd);
|
|
output[6] = WRAPLOW(step1[1] - step1[6], bd);
|
|
output[7] = WRAPLOW(step1[0] - step1[7], bd);
|
|
}
|
|
|
|
void vp9_highbd_idct8x8_64_add_c(const tran_low_t *input, uint8_t *dest8,
|
|
int stride, int bd) {
|
|
tran_low_t out[8 * 8];
|
|
tran_low_t *outptr = out;
|
|
int i, j;
|
|
tran_low_t temp_in[8], temp_out[8];
|
|
uint16_t *dest = CONVERT_TO_SHORTPTR(dest8);
|
|
|
|
// First transform rows.
|
|
for (i = 0; i < 8; ++i) {
|
|
vp9_highbd_idct8(input, outptr, bd);
|
|
input += 8;
|
|
outptr += 8;
|
|
}
|
|
|
|
// Then transform columns.
|
|
for (i = 0; i < 8; ++i) {
|
|
for (j = 0; j < 8; ++j)
|
|
temp_in[j] = out[j * 8 + i];
|
|
vp9_highbd_idct8(temp_in, temp_out, bd);
|
|
for (j = 0; j < 8; ++j) {
|
|
dest[j * stride + i] = highbd_clip_pixel_add(
|
|
dest[j * stride + i], ROUND_POWER_OF_TWO(temp_out[j], 5), bd);
|
|
}
|
|
}
|
|
}
|
|
|
|
void vp9_highbd_idct8x8_1_add_c(const tran_low_t *input, uint8_t *dest8,
|
|
int stride, int bd) {
|
|
int i, j;
|
|
tran_high_t a1;
|
|
tran_low_t out = WRAPLOW(dct_const_round_shift(input[0] * cospi_16_64), bd);
|
|
uint16_t *dest = CONVERT_TO_SHORTPTR(dest8);
|
|
out = WRAPLOW(dct_const_round_shift(out * cospi_16_64), bd);
|
|
a1 = ROUND_POWER_OF_TWO(out, 5);
|
|
for (j = 0; j < 8; ++j) {
|
|
for (i = 0; i < 8; ++i)
|
|
dest[i] = highbd_clip_pixel_add(dest[i], a1, bd);
|
|
dest += stride;
|
|
}
|
|
}
|
|
|
|
static void highbd_iadst4(const tran_low_t *input, tran_low_t *output, int bd) {
|
|
tran_high_t s0, s1, s2, s3, s4, s5, s6, s7;
|
|
|
|
tran_low_t x0 = input[0];
|
|
tran_low_t x1 = input[1];
|
|
tran_low_t x2 = input[2];
|
|
tran_low_t x3 = input[3];
|
|
(void) bd;
|
|
|
|
if (!(x0 | x1 | x2 | x3)) {
|
|
vpx_memset(output, 0, 4 * sizeof(*output));
|
|
return;
|
|
}
|
|
|
|
s0 = sinpi_1_9 * x0;
|
|
s1 = sinpi_2_9 * x0;
|
|
s2 = sinpi_3_9 * x1;
|
|
s3 = sinpi_4_9 * x2;
|
|
s4 = sinpi_1_9 * x2;
|
|
s5 = sinpi_2_9 * x3;
|
|
s6 = sinpi_4_9 * x3;
|
|
s7 = (tran_high_t)(x0 - x2 + x3);
|
|
|
|
s0 = s0 + s3 + s5;
|
|
s1 = s1 - s4 - s6;
|
|
s3 = s2;
|
|
s2 = sinpi_3_9 * s7;
|
|
|
|
// 1-D transform scaling factor is sqrt(2).
|
|
// The overall dynamic range is 14b (input) + 14b (multiplication scaling)
|
|
// + 1b (addition) = 29b.
|
|
// Hence the output bit depth is 15b.
|
|
output[0] = WRAPLOW(dct_const_round_shift(s0 + s3), bd);
|
|
output[1] = WRAPLOW(dct_const_round_shift(s1 + s3), bd);
|
|
output[2] = WRAPLOW(dct_const_round_shift(s2), bd);
|
|
output[3] = WRAPLOW(dct_const_round_shift(s0 + s1 - s3), bd);
|
|
}
|
|
|
|
void vp9_highbd_iht4x4_16_add_c(const tran_low_t *input, uint8_t *dest8,
|
|
int stride, int tx_type, int bd) {
|
|
const highbd_transform_2d HIGH_IHT_4[] = {
|
|
{ vp9_highbd_idct4, vp9_highbd_idct4 }, // DCT_DCT = 0
|
|
{ highbd_iadst4, vp9_highbd_idct4 }, // ADST_DCT = 1
|
|
{ vp9_highbd_idct4, highbd_iadst4 }, // DCT_ADST = 2
|
|
{ highbd_iadst4, highbd_iadst4 }, // ADST_ADST = 3
|
|
#if CONFIG_EXT_TX
|
|
{ highbd_iadst4, vp9_highbd_idct4 }, // FLIPADST_DCT = 4
|
|
{ vp9_highbd_idct4, highbd_iadst4 }, // DCT_FLIPADST = 5
|
|
{ highbd_iadst4, highbd_iadst4 }, // FLIPADST_FLIPADST = 6
|
|
{ highbd_iadst4, highbd_iadst4 }, // ADST_FLIPADST = 7
|
|
{ highbd_iadst4, highbd_iadst4 }, // FLIPADST_ADST = 8
|
|
{ highbd_idst4, highbd_idst4 }, // DST_DST = 9
|
|
{ highbd_idst4, vp9_highbd_idct4 }, // DST_DCT = 10
|
|
{ vp9_highbd_idct4, highbd_idst4 }, // DCT_DST = 11
|
|
{ highbd_idst4, highbd_iadst4 }, // DST_ADST = 12
|
|
{ highbd_iadst4, highbd_idst4 }, // ADST_DST = 13
|
|
{ highbd_idst4, highbd_iadst4 }, // DST_FLIPADST = 14
|
|
{ highbd_iadst4, highbd_idst4 }, // FLIPADST_DST = 15
|
|
#endif // CONFIG_EXT_TX
|
|
};
|
|
uint16_t *dest = CONVERT_TO_SHORTPTR(dest8);
|
|
|
|
int i, j;
|
|
tran_low_t tmp;
|
|
tran_low_t out[4][4];
|
|
tran_low_t *outp = &out[0][0];
|
|
int outstride = 4;
|
|
|
|
// inverse transform row vectors
|
|
for (i = 0; i < 4; ++i) {
|
|
HIGH_IHT_4[tx_type].rows(input, out[i], bd);
|
|
input += 4;
|
|
}
|
|
|
|
// transpose
|
|
for (i = 1 ; i < 4; i++) {
|
|
for (j = 0; j < i; j++) {
|
|
tmp = out[i][j];
|
|
out[i][j] = out[j][i];
|
|
out[j][i] = tmp;
|
|
}
|
|
}
|
|
|
|
// inverse transform column vectors
|
|
for (i = 0; i < 4; ++i) {
|
|
HIGH_IHT_4[tx_type].cols(out[i], out[i], bd);
|
|
}
|
|
|
|
#if CONFIG_EXT_TX
|
|
maybe_flip_strides16(&dest, &stride, &outp, &outstride, tx_type, 4);
|
|
#endif
|
|
|
|
// Sum with the destination
|
|
for (i = 0; i < 4; ++i) {
|
|
for (j = 0; j < 4; ++j) {
|
|
int d = i * stride + j;
|
|
int s = j * outstride + i;
|
|
dest[d] = highbd_clip_pixel_add(dest[d],
|
|
ROUND_POWER_OF_TWO(outp[s], 4), bd);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void highbd_iadst8(const tran_low_t *input, tran_low_t *output, int bd) {
|
|
tran_high_t s0, s1, s2, s3, s4, s5, s6, s7;
|
|
|
|
tran_low_t x0 = input[7];
|
|
tran_low_t x1 = input[0];
|
|
tran_low_t x2 = input[5];
|
|
tran_low_t x3 = input[2];
|
|
tran_low_t x4 = input[3];
|
|
tran_low_t x5 = input[4];
|
|
tran_low_t x6 = input[1];
|
|
tran_low_t x7 = input[6];
|
|
(void) bd;
|
|
|
|
if (!(x0 | x1 | x2 | x3 | x4 | x5 | x6 | x7)) {
|
|
vpx_memset(output, 0, 8 * sizeof(*output));
|
|
return;
|
|
}
|
|
|
|
// stage 1
|
|
s0 = cospi_2_64 * x0 + cospi_30_64 * x1;
|
|
s1 = cospi_30_64 * x0 - cospi_2_64 * x1;
|
|
s2 = cospi_10_64 * x2 + cospi_22_64 * x3;
|
|
s3 = cospi_22_64 * x2 - cospi_10_64 * x3;
|
|
s4 = cospi_18_64 * x4 + cospi_14_64 * x5;
|
|
s5 = cospi_14_64 * x4 - cospi_18_64 * x5;
|
|
s6 = cospi_26_64 * x6 + cospi_6_64 * x7;
|
|
s7 = cospi_6_64 * x6 - cospi_26_64 * x7;
|
|
|
|
x0 = WRAPLOW(dct_const_round_shift(s0 + s4), bd);
|
|
x1 = WRAPLOW(dct_const_round_shift(s1 + s5), bd);
|
|
x2 = WRAPLOW(dct_const_round_shift(s2 + s6), bd);
|
|
x3 = WRAPLOW(dct_const_round_shift(s3 + s7), bd);
|
|
x4 = WRAPLOW(dct_const_round_shift(s0 - s4), bd);
|
|
x5 = WRAPLOW(dct_const_round_shift(s1 - s5), bd);
|
|
x6 = WRAPLOW(dct_const_round_shift(s2 - s6), bd);
|
|
x7 = WRAPLOW(dct_const_round_shift(s3 - s7), bd);
|
|
|
|
// stage 2
|
|
s0 = x0;
|
|
s1 = x1;
|
|
s2 = x2;
|
|
s3 = x3;
|
|
s4 = cospi_8_64 * x4 + cospi_24_64 * x5;
|
|
s5 = cospi_24_64 * x4 - cospi_8_64 * x5;
|
|
s6 = -cospi_24_64 * x6 + cospi_8_64 * x7;
|
|
s7 = cospi_8_64 * x6 + cospi_24_64 * x7;
|
|
|
|
x0 = WRAPLOW(s0 + s2, bd);
|
|
x1 = WRAPLOW(s1 + s3, bd);
|
|
x2 = WRAPLOW(s0 - s2, bd);
|
|
x3 = WRAPLOW(s1 - s3, bd);
|
|
x4 = WRAPLOW(dct_const_round_shift(s4 + s6), bd);
|
|
x5 = WRAPLOW(dct_const_round_shift(s5 + s7), bd);
|
|
x6 = WRAPLOW(dct_const_round_shift(s4 - s6), bd);
|
|
x7 = WRAPLOW(dct_const_round_shift(s5 - s7), bd);
|
|
|
|
// stage 3
|
|
s2 = cospi_16_64 * (x2 + x3);
|
|
s3 = cospi_16_64 * (x2 - x3);
|
|
s6 = cospi_16_64 * (x6 + x7);
|
|
s7 = cospi_16_64 * (x6 - x7);
|
|
|
|
x2 = WRAPLOW(dct_const_round_shift(s2), bd);
|
|
x3 = WRAPLOW(dct_const_round_shift(s3), bd);
|
|
x6 = WRAPLOW(dct_const_round_shift(s6), bd);
|
|
x7 = WRAPLOW(dct_const_round_shift(s7), bd);
|
|
|
|
output[0] = WRAPLOW(x0, bd);
|
|
output[1] = WRAPLOW(-x4, bd);
|
|
output[2] = WRAPLOW(x6, bd);
|
|
output[3] = WRAPLOW(-x2, bd);
|
|
output[4] = WRAPLOW(x3, bd);
|
|
output[5] = WRAPLOW(-x7, bd);
|
|
output[6] = WRAPLOW(x5, bd);
|
|
output[7] = WRAPLOW(-x1, bd);
|
|
}
|
|
|
|
static const highbd_transform_2d HIGH_IHT_8[] = {
|
|
{ vp9_highbd_idct8, vp9_highbd_idct8 }, // DCT_DCT = 0
|
|
{ highbd_iadst8, vp9_highbd_idct8 }, // ADST_DCT = 1
|
|
{ vp9_highbd_idct8, highbd_iadst8 }, // DCT_ADST = 2
|
|
{ highbd_iadst8, highbd_iadst8 }, // ADST_ADST = 3
|
|
#if CONFIG_EXT_TX
|
|
{ highbd_iadst8, vp9_highbd_idct8 }, // FLIPADST_DCT = 4
|
|
{ vp9_highbd_idct8, highbd_iadst8 }, // DCT_FLIPADST = 5
|
|
{ highbd_iadst8, highbd_iadst8 }, // FLIPADST_FLIPADST = 6
|
|
{ highbd_iadst8, highbd_iadst8 }, // ADST_FLIPADST = 7
|
|
{ highbd_iadst8, highbd_iadst8 }, // FLIPADST_ADST = 8
|
|
{ highbd_idst8, highbd_idst8 }, // DST_DST = 9
|
|
{ highbd_idst8, vp9_highbd_idct8 }, // DST_DCT = 10
|
|
{ vp9_highbd_idct8, highbd_idst8 }, // DCT_DST = 11
|
|
{ highbd_idst8, highbd_iadst8 }, // DST_ADST = 12
|
|
{ highbd_iadst8, highbd_idst8 }, // ADST_DST = 13
|
|
{ highbd_idst8, highbd_iadst8 }, // DST_FLIPADST = 14
|
|
{ highbd_iadst8, highbd_idst8 }, // FLIPADST_DST = 15
|
|
#endif // CONFIG_EXT_TX
|
|
};
|
|
|
|
void vp9_highbd_iht8x8_64_add_c(const tran_low_t *input, uint8_t *dest8,
|
|
int stride, int tx_type, int bd) {
|
|
uint16_t *dest = CONVERT_TO_SHORTPTR(dest8);
|
|
|
|
int i, j;
|
|
tran_low_t tmp;
|
|
tran_low_t out[8][8];
|
|
tran_low_t *outp = &out[0][0];
|
|
int outstride = 8;
|
|
|
|
// inverse transform row vectors
|
|
for (i = 0; i < 8; ++i) {
|
|
HIGH_IHT_8[tx_type].rows(input, out[i], bd);
|
|
input += 8;
|
|
}
|
|
|
|
// transpose
|
|
for (i = 1 ; i < 8; i++) {
|
|
for (j = 0; j < i; j++) {
|
|
tmp = out[i][j];
|
|
out[i][j] = out[j][i];
|
|
out[j][i] = tmp;
|
|
}
|
|
}
|
|
|
|
// inverse transform column vectors
|
|
for (i = 0; i < 8; ++i) {
|
|
HIGH_IHT_8[tx_type].cols(out[i], out[i], bd);
|
|
}
|
|
|
|
#if CONFIG_EXT_TX
|
|
maybe_flip_strides16(&dest, &stride, &outp, &outstride, tx_type, 8);
|
|
#endif
|
|
|
|
// Sum with the destination
|
|
for (i = 0; i < 8; ++i) {
|
|
for (j = 0; j < 8; ++j) {
|
|
int d = i * stride + j;
|
|
int s = j * outstride + i;
|
|
dest[d] = highbd_clip_pixel_add(dest[d],
|
|
ROUND_POWER_OF_TWO(outp[s], 5), bd);
|
|
}
|
|
}
|
|
}
|
|
|
|
void vp9_highbd_idct8x8_10_add_c(const tran_low_t *input, uint8_t *dest8,
|
|
int stride, int bd) {
|
|
tran_low_t out[8 * 8] = { 0 };
|
|
tran_low_t *outptr = out;
|
|
int i, j;
|
|
tran_low_t temp_in[8], temp_out[8];
|
|
uint16_t *dest = CONVERT_TO_SHORTPTR(dest8);
|
|
|
|
// First transform rows.
|
|
// Only first 4 row has non-zero coefs.
|
|
for (i = 0; i < 4; ++i) {
|
|
vp9_highbd_idct8(input, outptr, bd);
|
|
input += 8;
|
|
outptr += 8;
|
|
}
|
|
// Then transform columns.
|
|
for (i = 0; i < 8; ++i) {
|
|
for (j = 0; j < 8; ++j)
|
|
temp_in[j] = out[j * 8 + i];
|
|
vp9_highbd_idct8(temp_in, temp_out, bd);
|
|
for (j = 0; j < 8; ++j) {
|
|
dest[j * stride + i] = highbd_clip_pixel_add(
|
|
dest[j * stride + i], ROUND_POWER_OF_TWO(temp_out[j], 5), bd);
|
|
}
|
|
}
|
|
}
|
|
|
|
void vp9_highbd_idct16(const tran_low_t *input, tran_low_t *output, int bd) {
|
|
tran_low_t step1[16], step2[16];
|
|
tran_high_t temp1, temp2;
|
|
(void) bd;
|
|
|
|
// stage 1
|
|
step1[0] = input[0/2];
|
|
step1[1] = input[16/2];
|
|
step1[2] = input[8/2];
|
|
step1[3] = input[24/2];
|
|
step1[4] = input[4/2];
|
|
step1[5] = input[20/2];
|
|
step1[6] = input[12/2];
|
|
step1[7] = input[28/2];
|
|
step1[8] = input[2/2];
|
|
step1[9] = input[18/2];
|
|
step1[10] = input[10/2];
|
|
step1[11] = input[26/2];
|
|
step1[12] = input[6/2];
|
|
step1[13] = input[22/2];
|
|
step1[14] = input[14/2];
|
|
step1[15] = input[30/2];
|
|
|
|
// stage 2
|
|
step2[0] = step1[0];
|
|
step2[1] = step1[1];
|
|
step2[2] = step1[2];
|
|
step2[3] = step1[3];
|
|
step2[4] = step1[4];
|
|
step2[5] = step1[5];
|
|
step2[6] = step1[6];
|
|
step2[7] = step1[7];
|
|
|
|
temp1 = step1[8] * cospi_30_64 - step1[15] * cospi_2_64;
|
|
temp2 = step1[8] * cospi_2_64 + step1[15] * cospi_30_64;
|
|
step2[8] = WRAPLOW(dct_const_round_shift(temp1), bd);
|
|
step2[15] = WRAPLOW(dct_const_round_shift(temp2), bd);
|
|
|
|
temp1 = step1[9] * cospi_14_64 - step1[14] * cospi_18_64;
|
|
temp2 = step1[9] * cospi_18_64 + step1[14] * cospi_14_64;
|
|
step2[9] = WRAPLOW(dct_const_round_shift(temp1), bd);
|
|
step2[14] = WRAPLOW(dct_const_round_shift(temp2), bd);
|
|
|
|
temp1 = step1[10] * cospi_22_64 - step1[13] * cospi_10_64;
|
|
temp2 = step1[10] * cospi_10_64 + step1[13] * cospi_22_64;
|
|
step2[10] = WRAPLOW(dct_const_round_shift(temp1), bd);
|
|
step2[13] = WRAPLOW(dct_const_round_shift(temp2), bd);
|
|
|
|
temp1 = step1[11] * cospi_6_64 - step1[12] * cospi_26_64;
|
|
temp2 = step1[11] * cospi_26_64 + step1[12] * cospi_6_64;
|
|
step2[11] = WRAPLOW(dct_const_round_shift(temp1), bd);
|
|
step2[12] = WRAPLOW(dct_const_round_shift(temp2), bd);
|
|
|
|
// stage 3
|
|
step1[0] = step2[0];
|
|
step1[1] = step2[1];
|
|
step1[2] = step2[2];
|
|
step1[3] = step2[3];
|
|
|
|
temp1 = step2[4] * cospi_28_64 - step2[7] * cospi_4_64;
|
|
temp2 = step2[4] * cospi_4_64 + step2[7] * cospi_28_64;
|
|
step1[4] = WRAPLOW(dct_const_round_shift(temp1), bd);
|
|
step1[7] = WRAPLOW(dct_const_round_shift(temp2), bd);
|
|
temp1 = step2[5] * cospi_12_64 - step2[6] * cospi_20_64;
|
|
temp2 = step2[5] * cospi_20_64 + step2[6] * cospi_12_64;
|
|
step1[5] = WRAPLOW(dct_const_round_shift(temp1), bd);
|
|
step1[6] = WRAPLOW(dct_const_round_shift(temp2), bd);
|
|
|
|
step1[8] = WRAPLOW(step2[8] + step2[9], bd);
|
|
step1[9] = WRAPLOW(step2[8] - step2[9], bd);
|
|
step1[10] = WRAPLOW(-step2[10] + step2[11], bd);
|
|
step1[11] = WRAPLOW(step2[10] + step2[11], bd);
|
|
step1[12] = WRAPLOW(step2[12] + step2[13], bd);
|
|
step1[13] = WRAPLOW(step2[12] - step2[13], bd);
|
|
step1[14] = WRAPLOW(-step2[14] + step2[15], bd);
|
|
step1[15] = WRAPLOW(step2[14] + step2[15], bd);
|
|
|
|
// stage 4
|
|
temp1 = (step1[0] + step1[1]) * cospi_16_64;
|
|
temp2 = (step1[0] - step1[1]) * cospi_16_64;
|
|
step2[0] = WRAPLOW(dct_const_round_shift(temp1), bd);
|
|
step2[1] = WRAPLOW(dct_const_round_shift(temp2), bd);
|
|
temp1 = step1[2] * cospi_24_64 - step1[3] * cospi_8_64;
|
|
temp2 = step1[2] * cospi_8_64 + step1[3] * cospi_24_64;
|
|
step2[2] = WRAPLOW(dct_const_round_shift(temp1), bd);
|
|
step2[3] = WRAPLOW(dct_const_round_shift(temp2), bd);
|
|
step2[4] = WRAPLOW(step1[4] + step1[5], bd);
|
|
step2[5] = WRAPLOW(step1[4] - step1[5], bd);
|
|
step2[6] = WRAPLOW(-step1[6] + step1[7], bd);
|
|
step2[7] = WRAPLOW(step1[6] + step1[7], bd);
|
|
|
|
step2[8] = step1[8];
|
|
step2[15] = step1[15];
|
|
temp1 = -step1[9] * cospi_8_64 + step1[14] * cospi_24_64;
|
|
temp2 = step1[9] * cospi_24_64 + step1[14] * cospi_8_64;
|
|
step2[9] = WRAPLOW(dct_const_round_shift(temp1), bd);
|
|
step2[14] = WRAPLOW(dct_const_round_shift(temp2), bd);
|
|
temp1 = -step1[10] * cospi_24_64 - step1[13] * cospi_8_64;
|
|
temp2 = -step1[10] * cospi_8_64 + step1[13] * cospi_24_64;
|
|
step2[10] = WRAPLOW(dct_const_round_shift(temp1), bd);
|
|
step2[13] = WRAPLOW(dct_const_round_shift(temp2), bd);
|
|
step2[11] = step1[11];
|
|
step2[12] = step1[12];
|
|
|
|
// stage 5
|
|
step1[0] = WRAPLOW(step2[0] + step2[3], bd);
|
|
step1[1] = WRAPLOW(step2[1] + step2[2], bd);
|
|
step1[2] = WRAPLOW(step2[1] - step2[2], bd);
|
|
step1[3] = WRAPLOW(step2[0] - step2[3], bd);
|
|
step1[4] = step2[4];
|
|
temp1 = (step2[6] - step2[5]) * cospi_16_64;
|
|
temp2 = (step2[5] + step2[6]) * cospi_16_64;
|
|
step1[5] = WRAPLOW(dct_const_round_shift(temp1), bd);
|
|
step1[6] = WRAPLOW(dct_const_round_shift(temp2), bd);
|
|
step1[7] = step2[7];
|
|
|
|
step1[8] = WRAPLOW(step2[8] + step2[11], bd);
|
|
step1[9] = WRAPLOW(step2[9] + step2[10], bd);
|
|
step1[10] = WRAPLOW(step2[9] - step2[10], bd);
|
|
step1[11] = WRAPLOW(step2[8] - step2[11], bd);
|
|
step1[12] = WRAPLOW(-step2[12] + step2[15], bd);
|
|
step1[13] = WRAPLOW(-step2[13] + step2[14], bd);
|
|
step1[14] = WRAPLOW(step2[13] + step2[14], bd);
|
|
step1[15] = WRAPLOW(step2[12] + step2[15], bd);
|
|
|
|
// stage 6
|
|
step2[0] = WRAPLOW(step1[0] + step1[7], bd);
|
|
step2[1] = WRAPLOW(step1[1] + step1[6], bd);
|
|
step2[2] = WRAPLOW(step1[2] + step1[5], bd);
|
|
step2[3] = WRAPLOW(step1[3] + step1[4], bd);
|
|
step2[4] = WRAPLOW(step1[3] - step1[4], bd);
|
|
step2[5] = WRAPLOW(step1[2] - step1[5], bd);
|
|
step2[6] = WRAPLOW(step1[1] - step1[6], bd);
|
|
step2[7] = WRAPLOW(step1[0] - step1[7], bd);
|
|
step2[8] = step1[8];
|
|
step2[9] = step1[9];
|
|
temp1 = (-step1[10] + step1[13]) * cospi_16_64;
|
|
temp2 = (step1[10] + step1[13]) * cospi_16_64;
|
|
step2[10] = WRAPLOW(dct_const_round_shift(temp1), bd);
|
|
step2[13] = WRAPLOW(dct_const_round_shift(temp2), bd);
|
|
temp1 = (-step1[11] + step1[12]) * cospi_16_64;
|
|
temp2 = (step1[11] + step1[12]) * cospi_16_64;
|
|
step2[11] = WRAPLOW(dct_const_round_shift(temp1), bd);
|
|
step2[12] = WRAPLOW(dct_const_round_shift(temp2), bd);
|
|
step2[14] = step1[14];
|
|
step2[15] = step1[15];
|
|
|
|
// stage 7
|
|
output[0] = WRAPLOW(step2[0] + step2[15], bd);
|
|
output[1] = WRAPLOW(step2[1] + step2[14], bd);
|
|
output[2] = WRAPLOW(step2[2] + step2[13], bd);
|
|
output[3] = WRAPLOW(step2[3] + step2[12], bd);
|
|
output[4] = WRAPLOW(step2[4] + step2[11], bd);
|
|
output[5] = WRAPLOW(step2[5] + step2[10], bd);
|
|
output[6] = WRAPLOW(step2[6] + step2[9], bd);
|
|
output[7] = WRAPLOW(step2[7] + step2[8], bd);
|
|
output[8] = WRAPLOW(step2[7] - step2[8], bd);
|
|
output[9] = WRAPLOW(step2[6] - step2[9], bd);
|
|
output[10] = WRAPLOW(step2[5] - step2[10], bd);
|
|
output[11] = WRAPLOW(step2[4] - step2[11], bd);
|
|
output[12] = WRAPLOW(step2[3] - step2[12], bd);
|
|
output[13] = WRAPLOW(step2[2] - step2[13], bd);
|
|
output[14] = WRAPLOW(step2[1] - step2[14], bd);
|
|
output[15] = WRAPLOW(step2[0] - step2[15], bd);
|
|
}
|
|
|
|
void vp9_highbd_idct16x16_256_add_c(const tran_low_t *input, uint8_t *dest8,
|
|
int stride, int bd) {
|
|
tran_low_t out[16 * 16];
|
|
tran_low_t *outptr = out;
|
|
int i, j;
|
|
tran_low_t temp_in[16], temp_out[16];
|
|
uint16_t *dest = CONVERT_TO_SHORTPTR(dest8);
|
|
|
|
// First transform rows.
|
|
for (i = 0; i < 16; ++i) {
|
|
vp9_highbd_idct16(input, outptr, bd);
|
|
input += 16;
|
|
outptr += 16;
|
|
}
|
|
|
|
// Then transform columns.
|
|
for (i = 0; i < 16; ++i) {
|
|
for (j = 0; j < 16; ++j)
|
|
temp_in[j] = out[j * 16 + i];
|
|
vp9_highbd_idct16(temp_in, temp_out, bd);
|
|
for (j = 0; j < 16; ++j) {
|
|
dest[j * stride + i] = highbd_clip_pixel_add(
|
|
dest[j * stride + i], ROUND_POWER_OF_TWO(temp_out[j], 6), bd);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void highbd_iadst16(const tran_low_t *input, tran_low_t *output,
|
|
int bd) {
|
|
tran_high_t s0, s1, s2, s3, s4, s5, s6, s7, s8;
|
|
tran_high_t s9, s10, s11, s12, s13, s14, s15;
|
|
|
|
tran_low_t x0 = input[15];
|
|
tran_low_t x1 = input[0];
|
|
tran_low_t x2 = input[13];
|
|
tran_low_t x3 = input[2];
|
|
tran_low_t x4 = input[11];
|
|
tran_low_t x5 = input[4];
|
|
tran_low_t x6 = input[9];
|
|
tran_low_t x7 = input[6];
|
|
tran_low_t x8 = input[7];
|
|
tran_low_t x9 = input[8];
|
|
tran_low_t x10 = input[5];
|
|
tran_low_t x11 = input[10];
|
|
tran_low_t x12 = input[3];
|
|
tran_low_t x13 = input[12];
|
|
tran_low_t x14 = input[1];
|
|
tran_low_t x15 = input[14];
|
|
(void) bd;
|
|
|
|
if (!(x0 | x1 | x2 | x3 | x4 | x5 | x6 | x7 | x8
|
|
| x9 | x10 | x11 | x12 | x13 | x14 | x15)) {
|
|
vpx_memset(output, 0, 16 * sizeof(*output));
|
|
return;
|
|
}
|
|
|
|
// stage 1
|
|
s0 = x0 * cospi_1_64 + x1 * cospi_31_64;
|
|
s1 = x0 * cospi_31_64 - x1 * cospi_1_64;
|
|
s2 = x2 * cospi_5_64 + x3 * cospi_27_64;
|
|
s3 = x2 * cospi_27_64 - x3 * cospi_5_64;
|
|
s4 = x4 * cospi_9_64 + x5 * cospi_23_64;
|
|
s5 = x4 * cospi_23_64 - x5 * cospi_9_64;
|
|
s6 = x6 * cospi_13_64 + x7 * cospi_19_64;
|
|
s7 = x6 * cospi_19_64 - x7 * cospi_13_64;
|
|
s8 = x8 * cospi_17_64 + x9 * cospi_15_64;
|
|
s9 = x8 * cospi_15_64 - x9 * cospi_17_64;
|
|
s10 = x10 * cospi_21_64 + x11 * cospi_11_64;
|
|
s11 = x10 * cospi_11_64 - x11 * cospi_21_64;
|
|
s12 = x12 * cospi_25_64 + x13 * cospi_7_64;
|
|
s13 = x12 * cospi_7_64 - x13 * cospi_25_64;
|
|
s14 = x14 * cospi_29_64 + x15 * cospi_3_64;
|
|
s15 = x14 * cospi_3_64 - x15 * cospi_29_64;
|
|
|
|
x0 = WRAPLOW(dct_const_round_shift(s0 + s8), bd);
|
|
x1 = WRAPLOW(dct_const_round_shift(s1 + s9), bd);
|
|
x2 = WRAPLOW(dct_const_round_shift(s2 + s10), bd);
|
|
x3 = WRAPLOW(dct_const_round_shift(s3 + s11), bd);
|
|
x4 = WRAPLOW(dct_const_round_shift(s4 + s12), bd);
|
|
x5 = WRAPLOW(dct_const_round_shift(s5 + s13), bd);
|
|
x6 = WRAPLOW(dct_const_round_shift(s6 + s14), bd);
|
|
x7 = WRAPLOW(dct_const_round_shift(s7 + s15), bd);
|
|
x8 = WRAPLOW(dct_const_round_shift(s0 - s8), bd);
|
|
x9 = WRAPLOW(dct_const_round_shift(s1 - s9), bd);
|
|
x10 = WRAPLOW(dct_const_round_shift(s2 - s10), bd);
|
|
x11 = WRAPLOW(dct_const_round_shift(s3 - s11), bd);
|
|
x12 = WRAPLOW(dct_const_round_shift(s4 - s12), bd);
|
|
x13 = WRAPLOW(dct_const_round_shift(s5 - s13), bd);
|
|
x14 = WRAPLOW(dct_const_round_shift(s6 - s14), bd);
|
|
x15 = WRAPLOW(dct_const_round_shift(s7 - s15), bd);
|
|
|
|
// stage 2
|
|
s0 = x0;
|
|
s1 = x1;
|
|
s2 = x2;
|
|
s3 = x3;
|
|
s4 = x4;
|
|
s5 = x5;
|
|
s6 = x6;
|
|
s7 = x7;
|
|
s8 = x8 * cospi_4_64 + x9 * cospi_28_64;
|
|
s9 = x8 * cospi_28_64 - x9 * cospi_4_64;
|
|
s10 = x10 * cospi_20_64 + x11 * cospi_12_64;
|
|
s11 = x10 * cospi_12_64 - x11 * cospi_20_64;
|
|
s12 = -x12 * cospi_28_64 + x13 * cospi_4_64;
|
|
s13 = x12 * cospi_4_64 + x13 * cospi_28_64;
|
|
s14 = -x14 * cospi_12_64 + x15 * cospi_20_64;
|
|
s15 = x14 * cospi_20_64 + x15 * cospi_12_64;
|
|
|
|
x0 = WRAPLOW(s0 + s4, bd);
|
|
x1 = WRAPLOW(s1 + s5, bd);
|
|
x2 = WRAPLOW(s2 + s6, bd);
|
|
x3 = WRAPLOW(s3 + s7, bd);
|
|
x4 = WRAPLOW(s0 - s4, bd);
|
|
x5 = WRAPLOW(s1 - s5, bd);
|
|
x6 = WRAPLOW(s2 - s6, bd);
|
|
x7 = WRAPLOW(s3 - s7, bd);
|
|
x8 = WRAPLOW(dct_const_round_shift(s8 + s12), bd);
|
|
x9 = WRAPLOW(dct_const_round_shift(s9 + s13), bd);
|
|
x10 = WRAPLOW(dct_const_round_shift(s10 + s14), bd);
|
|
x11 = WRAPLOW(dct_const_round_shift(s11 + s15), bd);
|
|
x12 = WRAPLOW(dct_const_round_shift(s8 - s12), bd);
|
|
x13 = WRAPLOW(dct_const_round_shift(s9 - s13), bd);
|
|
x14 = WRAPLOW(dct_const_round_shift(s10 - s14), bd);
|
|
x15 = WRAPLOW(dct_const_round_shift(s11 - s15), bd);
|
|
|
|
// stage 3
|
|
s0 = x0;
|
|
s1 = x1;
|
|
s2 = x2;
|
|
s3 = x3;
|
|
s4 = x4 * cospi_8_64 + x5 * cospi_24_64;
|
|
s5 = x4 * cospi_24_64 - x5 * cospi_8_64;
|
|
s6 = -x6 * cospi_24_64 + x7 * cospi_8_64;
|
|
s7 = x6 * cospi_8_64 + x7 * cospi_24_64;
|
|
s8 = x8;
|
|
s9 = x9;
|
|
s10 = x10;
|
|
s11 = x11;
|
|
s12 = x12 * cospi_8_64 + x13 * cospi_24_64;
|
|
s13 = x12 * cospi_24_64 - x13 * cospi_8_64;
|
|
s14 = -x14 * cospi_24_64 + x15 * cospi_8_64;
|
|
s15 = x14 * cospi_8_64 + x15 * cospi_24_64;
|
|
|
|
x0 = WRAPLOW(s0 + s2, bd);
|
|
x1 = WRAPLOW(s1 + s3, bd);
|
|
x2 = WRAPLOW(s0 - s2, bd);
|
|
x3 = WRAPLOW(s1 - s3, bd);
|
|
x4 = WRAPLOW(dct_const_round_shift(s4 + s6), bd);
|
|
x5 = WRAPLOW(dct_const_round_shift(s5 + s7), bd);
|
|
x6 = WRAPLOW(dct_const_round_shift(s4 - s6), bd);
|
|
x7 = WRAPLOW(dct_const_round_shift(s5 - s7), bd);
|
|
x8 = WRAPLOW(s8 + s10, bd);
|
|
x9 = WRAPLOW(s9 + s11, bd);
|
|
x10 = WRAPLOW(s8 - s10, bd);
|
|
x11 = WRAPLOW(s9 - s11, bd);
|
|
x12 = WRAPLOW(dct_const_round_shift(s12 + s14), bd);
|
|
x13 = WRAPLOW(dct_const_round_shift(s13 + s15), bd);
|
|
x14 = WRAPLOW(dct_const_round_shift(s12 - s14), bd);
|
|
x15 = WRAPLOW(dct_const_round_shift(s13 - s15), bd);
|
|
|
|
// stage 4
|
|
s2 = (- cospi_16_64) * (x2 + x3);
|
|
s3 = cospi_16_64 * (x2 - x3);
|
|
s6 = cospi_16_64 * (x6 + x7);
|
|
s7 = cospi_16_64 * (-x6 + x7);
|
|
s10 = cospi_16_64 * (x10 + x11);
|
|
s11 = cospi_16_64 * (-x10 + x11);
|
|
s14 = (- cospi_16_64) * (x14 + x15);
|
|
s15 = cospi_16_64 * (x14 - x15);
|
|
|
|
x2 = WRAPLOW(dct_const_round_shift(s2), bd);
|
|
x3 = WRAPLOW(dct_const_round_shift(s3), bd);
|
|
x6 = WRAPLOW(dct_const_round_shift(s6), bd);
|
|
x7 = WRAPLOW(dct_const_round_shift(s7), bd);
|
|
x10 = WRAPLOW(dct_const_round_shift(s10), bd);
|
|
x11 = WRAPLOW(dct_const_round_shift(s11), bd);
|
|
x14 = WRAPLOW(dct_const_round_shift(s14), bd);
|
|
x15 = WRAPLOW(dct_const_round_shift(s15), bd);
|
|
|
|
output[0] = WRAPLOW(x0, bd);
|
|
output[1] = WRAPLOW(-x8, bd);
|
|
output[2] = WRAPLOW(x12, bd);
|
|
output[3] = WRAPLOW(-x4, bd);
|
|
output[4] = WRAPLOW(x6, bd);
|
|
output[5] = WRAPLOW(x14, bd);
|
|
output[6] = WRAPLOW(x10, bd);
|
|
output[7] = WRAPLOW(x2, bd);
|
|
output[8] = WRAPLOW(x3, bd);
|
|
output[9] = WRAPLOW(x11, bd);
|
|
output[10] = WRAPLOW(x15, bd);
|
|
output[11] = WRAPLOW(x7, bd);
|
|
output[12] = WRAPLOW(x5, bd);
|
|
output[13] = WRAPLOW(-x13, bd);
|
|
output[14] = WRAPLOW(x9, bd);
|
|
output[15] = WRAPLOW(-x1, bd);
|
|
}
|
|
|
|
static const highbd_transform_2d HIGH_IHT_16[] = {
|
|
{ vp9_highbd_idct16, vp9_highbd_idct16 }, // DCT_DCT = 0
|
|
{ highbd_iadst16, vp9_highbd_idct16 }, // ADST_DCT = 1
|
|
{ vp9_highbd_idct16, highbd_iadst16 }, // DCT_ADST = 2
|
|
{ highbd_iadst16, highbd_iadst16 }, // ADST_ADST = 3
|
|
#if CONFIG_EXT_TX
|
|
{ highbd_iadst16, vp9_highbd_idct16 }, // FLIPADST_DCT = 4
|
|
{ vp9_highbd_idct16, highbd_iadst16 }, // DCT_FLIPADST = 5
|
|
{ highbd_iadst16, highbd_iadst16 }, // FLIPADST_FLIPADST = 6
|
|
{ highbd_iadst16, highbd_iadst16 }, // ADST_FLIPADST = 7
|
|
{ highbd_iadst16, highbd_iadst16 }, // FLIPADST_ADST = 8
|
|
{ highbd_idst16, highbd_idst16 }, // DST_DST = 9
|
|
{ highbd_idst16, vp9_highbd_idct16 }, // DST_DCT = 10
|
|
{ vp9_highbd_idct16, highbd_idst16 }, // DCT_DST = 11
|
|
{ highbd_idst16, highbd_iadst16 }, // DST_ADST = 12
|
|
{ highbd_iadst16, highbd_idst16 }, // ADST_DST = 13
|
|
{ highbd_idst16, highbd_iadst16 }, // DST_FLIPADST = 14
|
|
{ highbd_iadst16, highbd_idst16 }, // FLIPADST_DST = 15
|
|
#endif // CONFIG_EXT_TX
|
|
};
|
|
|
|
void vp9_highbd_iht16x16_256_add_c(const tran_low_t *input, uint8_t *dest8,
|
|
int stride, int tx_type, int bd) {
|
|
uint16_t *dest = CONVERT_TO_SHORTPTR(dest8);
|
|
|
|
int i, j;
|
|
tran_low_t tmp;
|
|
tran_low_t out[16][16];
|
|
tran_low_t *outp = &out[0][0];
|
|
int outstride = 16;
|
|
|
|
// inverse transform row vectors
|
|
for (i = 0; i < 16; ++i) {
|
|
HIGH_IHT_16[tx_type].rows(input, out[i], bd);
|
|
input += 16;
|
|
}
|
|
|
|
// transpose
|
|
for (i = 1 ; i < 16; i++) {
|
|
for (j = 0; j < i; j++) {
|
|
tmp = out[i][j];
|
|
out[i][j] = out[j][i];
|
|
out[j][i] = tmp;
|
|
}
|
|
}
|
|
|
|
// inverse transform column vectors
|
|
for (i = 0; i < 16; ++i) {
|
|
HIGH_IHT_16[tx_type].cols(out[i], out[i], bd);
|
|
}
|
|
|
|
#if CONFIG_EXT_TX
|
|
maybe_flip_strides16(&dest, &stride, &outp, &outstride, tx_type, 16);
|
|
#endif
|
|
|
|
// Sum with the destination
|
|
for (i = 0; i < 16; ++i) {
|
|
for (j = 0; j < 16; ++j) {
|
|
int d = i * stride + j;
|
|
int s = j * outstride + i;
|
|
dest[d] = highbd_clip_pixel_add(dest[d],
|
|
ROUND_POWER_OF_TWO(outp[s], 6), bd);
|
|
}
|
|
}
|
|
}
|
|
|
|
void vp9_highbd_idct16x16_10_add_c(const tran_low_t *input, uint8_t *dest8,
|
|
int stride, int bd) {
|
|
tran_low_t out[16 * 16] = { 0 };
|
|
tran_low_t *outptr = out;
|
|
int i, j;
|
|
tran_low_t temp_in[16], temp_out[16];
|
|
uint16_t *dest = CONVERT_TO_SHORTPTR(dest8);
|
|
|
|
// First transform rows. Since all non-zero dct coefficients are in
|
|
// upper-left 4x4 area, we only need to calculate first 4 rows here.
|
|
for (i = 0; i < 4; ++i) {
|
|
vp9_highbd_idct16(input, outptr, bd);
|
|
input += 16;
|
|
outptr += 16;
|
|
}
|
|
|
|
// Then transform columns.
|
|
for (i = 0; i < 16; ++i) {
|
|
for (j = 0; j < 16; ++j)
|
|
temp_in[j] = out[j*16 + i];
|
|
vp9_highbd_idct16(temp_in, temp_out, bd);
|
|
for (j = 0; j < 16; ++j) {
|
|
dest[j * stride + i] = highbd_clip_pixel_add(
|
|
dest[j * stride + i], ROUND_POWER_OF_TWO(temp_out[j], 6), bd);
|
|
}
|
|
}
|
|
}
|
|
|
|
void vp9_highbd_idct16x16_1_add_c(const tran_low_t *input, uint8_t *dest8,
|
|
int stride, int bd) {
|
|
int i, j;
|
|
tran_high_t a1;
|
|
tran_low_t out = WRAPLOW(dct_const_round_shift(input[0] * cospi_16_64), bd);
|
|
uint16_t *dest = CONVERT_TO_SHORTPTR(dest8);
|
|
|
|
out = WRAPLOW(dct_const_round_shift(out * cospi_16_64), bd);
|
|
a1 = ROUND_POWER_OF_TWO(out, 6);
|
|
for (j = 0; j < 16; ++j) {
|
|
for (i = 0; i < 16; ++i)
|
|
dest[i] = highbd_clip_pixel_add(dest[i], a1, bd);
|
|
dest += stride;
|
|
}
|
|
}
|
|
|
|
static void highbd_idct32(const tran_low_t *input, tran_low_t *output, int bd) {
|
|
tran_low_t step1[32], step2[32];
|
|
tran_high_t temp1, temp2;
|
|
(void) bd;
|
|
|
|
// stage 1
|
|
step1[0] = input[0];
|
|
step1[1] = input[16];
|
|
step1[2] = input[8];
|
|
step1[3] = input[24];
|
|
step1[4] = input[4];
|
|
step1[5] = input[20];
|
|
step1[6] = input[12];
|
|
step1[7] = input[28];
|
|
step1[8] = input[2];
|
|
step1[9] = input[18];
|
|
step1[10] = input[10];
|
|
step1[11] = input[26];
|
|
step1[12] = input[6];
|
|
step1[13] = input[22];
|
|
step1[14] = input[14];
|
|
step1[15] = input[30];
|
|
|
|
temp1 = input[1] * cospi_31_64 - input[31] * cospi_1_64;
|
|
temp2 = input[1] * cospi_1_64 + input[31] * cospi_31_64;
|
|
step1[16] = WRAPLOW(dct_const_round_shift(temp1), bd);
|
|
step1[31] = WRAPLOW(dct_const_round_shift(temp2), bd);
|
|
|
|
temp1 = input[17] * cospi_15_64 - input[15] * cospi_17_64;
|
|
temp2 = input[17] * cospi_17_64 + input[15] * cospi_15_64;
|
|
step1[17] = WRAPLOW(dct_const_round_shift(temp1), bd);
|
|
step1[30] = WRAPLOW(dct_const_round_shift(temp2), bd);
|
|
|
|
temp1 = input[9] * cospi_23_64 - input[23] * cospi_9_64;
|
|
temp2 = input[9] * cospi_9_64 + input[23] * cospi_23_64;
|
|
step1[18] = WRAPLOW(dct_const_round_shift(temp1), bd);
|
|
step1[29] = WRAPLOW(dct_const_round_shift(temp2), bd);
|
|
|
|
temp1 = input[25] * cospi_7_64 - input[7] * cospi_25_64;
|
|
temp2 = input[25] * cospi_25_64 + input[7] * cospi_7_64;
|
|
step1[19] = WRAPLOW(dct_const_round_shift(temp1), bd);
|
|
step1[28] = WRAPLOW(dct_const_round_shift(temp2), bd);
|
|
|
|
temp1 = input[5] * cospi_27_64 - input[27] * cospi_5_64;
|
|
temp2 = input[5] * cospi_5_64 + input[27] * cospi_27_64;
|
|
step1[20] = WRAPLOW(dct_const_round_shift(temp1), bd);
|
|
step1[27] = WRAPLOW(dct_const_round_shift(temp2), bd);
|
|
|
|
temp1 = input[21] * cospi_11_64 - input[11] * cospi_21_64;
|
|
temp2 = input[21] * cospi_21_64 + input[11] * cospi_11_64;
|
|
step1[21] = WRAPLOW(dct_const_round_shift(temp1), bd);
|
|
step1[26] = WRAPLOW(dct_const_round_shift(temp2), bd);
|
|
|
|
temp1 = input[13] * cospi_19_64 - input[19] * cospi_13_64;
|
|
temp2 = input[13] * cospi_13_64 + input[19] * cospi_19_64;
|
|
step1[22] = WRAPLOW(dct_const_round_shift(temp1), bd);
|
|
step1[25] = WRAPLOW(dct_const_round_shift(temp2), bd);
|
|
|
|
temp1 = input[29] * cospi_3_64 - input[3] * cospi_29_64;
|
|
temp2 = input[29] * cospi_29_64 + input[3] * cospi_3_64;
|
|
step1[23] = WRAPLOW(dct_const_round_shift(temp1), bd);
|
|
step1[24] = WRAPLOW(dct_const_round_shift(temp2), bd);
|
|
|
|
// stage 2
|
|
step2[0] = step1[0];
|
|
step2[1] = step1[1];
|
|
step2[2] = step1[2];
|
|
step2[3] = step1[3];
|
|
step2[4] = step1[4];
|
|
step2[5] = step1[5];
|
|
step2[6] = step1[6];
|
|
step2[7] = step1[7];
|
|
|
|
temp1 = step1[8] * cospi_30_64 - step1[15] * cospi_2_64;
|
|
temp2 = step1[8] * cospi_2_64 + step1[15] * cospi_30_64;
|
|
step2[8] = WRAPLOW(dct_const_round_shift(temp1), bd);
|
|
step2[15] = WRAPLOW(dct_const_round_shift(temp2), bd);
|
|
|
|
temp1 = step1[9] * cospi_14_64 - step1[14] * cospi_18_64;
|
|
temp2 = step1[9] * cospi_18_64 + step1[14] * cospi_14_64;
|
|
step2[9] = WRAPLOW(dct_const_round_shift(temp1), bd);
|
|
step2[14] = WRAPLOW(dct_const_round_shift(temp2), bd);
|
|
|
|
temp1 = step1[10] * cospi_22_64 - step1[13] * cospi_10_64;
|
|
temp2 = step1[10] * cospi_10_64 + step1[13] * cospi_22_64;
|
|
step2[10] = WRAPLOW(dct_const_round_shift(temp1), bd);
|
|
step2[13] = WRAPLOW(dct_const_round_shift(temp2), bd);
|
|
|
|
temp1 = step1[11] * cospi_6_64 - step1[12] * cospi_26_64;
|
|
temp2 = step1[11] * cospi_26_64 + step1[12] * cospi_6_64;
|
|
step2[11] = WRAPLOW(dct_const_round_shift(temp1), bd);
|
|
step2[12] = WRAPLOW(dct_const_round_shift(temp2), bd);
|
|
|
|
step2[16] = WRAPLOW(step1[16] + step1[17], bd);
|
|
step2[17] = WRAPLOW(step1[16] - step1[17], bd);
|
|
step2[18] = WRAPLOW(-step1[18] + step1[19], bd);
|
|
step2[19] = WRAPLOW(step1[18] + step1[19], bd);
|
|
step2[20] = WRAPLOW(step1[20] + step1[21], bd);
|
|
step2[21] = WRAPLOW(step1[20] - step1[21], bd);
|
|
step2[22] = WRAPLOW(-step1[22] + step1[23], bd);
|
|
step2[23] = WRAPLOW(step1[22] + step1[23], bd);
|
|
step2[24] = WRAPLOW(step1[24] + step1[25], bd);
|
|
step2[25] = WRAPLOW(step1[24] - step1[25], bd);
|
|
step2[26] = WRAPLOW(-step1[26] + step1[27], bd);
|
|
step2[27] = WRAPLOW(step1[26] + step1[27], bd);
|
|
step2[28] = WRAPLOW(step1[28] + step1[29], bd);
|
|
step2[29] = WRAPLOW(step1[28] - step1[29], bd);
|
|
step2[30] = WRAPLOW(-step1[30] + step1[31], bd);
|
|
step2[31] = WRAPLOW(step1[30] + step1[31], bd);
|
|
|
|
// stage 3
|
|
step1[0] = step2[0];
|
|
step1[1] = step2[1];
|
|
step1[2] = step2[2];
|
|
step1[3] = step2[3];
|
|
|
|
temp1 = step2[4] * cospi_28_64 - step2[7] * cospi_4_64;
|
|
temp2 = step2[4] * cospi_4_64 + step2[7] * cospi_28_64;
|
|
step1[4] = WRAPLOW(dct_const_round_shift(temp1), bd);
|
|
step1[7] = WRAPLOW(dct_const_round_shift(temp2), bd);
|
|
temp1 = step2[5] * cospi_12_64 - step2[6] * cospi_20_64;
|
|
temp2 = step2[5] * cospi_20_64 + step2[6] * cospi_12_64;
|
|
step1[5] = WRAPLOW(dct_const_round_shift(temp1), bd);
|
|
step1[6] = WRAPLOW(dct_const_round_shift(temp2), bd);
|
|
|
|
step1[8] = WRAPLOW(step2[8] + step2[9], bd);
|
|
step1[9] = WRAPLOW(step2[8] - step2[9], bd);
|
|
step1[10] = WRAPLOW(-step2[10] + step2[11], bd);
|
|
step1[11] = WRAPLOW(step2[10] + step2[11], bd);
|
|
step1[12] = WRAPLOW(step2[12] + step2[13], bd);
|
|
step1[13] = WRAPLOW(step2[12] - step2[13], bd);
|
|
step1[14] = WRAPLOW(-step2[14] + step2[15], bd);
|
|
step1[15] = WRAPLOW(step2[14] + step2[15], bd);
|
|
|
|
step1[16] = step2[16];
|
|
step1[31] = step2[31];
|
|
temp1 = -step2[17] * cospi_4_64 + step2[30] * cospi_28_64;
|
|
temp2 = step2[17] * cospi_28_64 + step2[30] * cospi_4_64;
|
|
step1[17] = WRAPLOW(dct_const_round_shift(temp1), bd);
|
|
step1[30] = WRAPLOW(dct_const_round_shift(temp2), bd);
|
|
temp1 = -step2[18] * cospi_28_64 - step2[29] * cospi_4_64;
|
|
temp2 = -step2[18] * cospi_4_64 + step2[29] * cospi_28_64;
|
|
step1[18] = WRAPLOW(dct_const_round_shift(temp1), bd);
|
|
step1[29] = WRAPLOW(dct_const_round_shift(temp2), bd);
|
|
step1[19] = step2[19];
|
|
step1[20] = step2[20];
|
|
temp1 = -step2[21] * cospi_20_64 + step2[26] * cospi_12_64;
|
|
temp2 = step2[21] * cospi_12_64 + step2[26] * cospi_20_64;
|
|
step1[21] = WRAPLOW(dct_const_round_shift(temp1), bd);
|
|
step1[26] = WRAPLOW(dct_const_round_shift(temp2), bd);
|
|
temp1 = -step2[22] * cospi_12_64 - step2[25] * cospi_20_64;
|
|
temp2 = -step2[22] * cospi_20_64 + step2[25] * cospi_12_64;
|
|
step1[22] = WRAPLOW(dct_const_round_shift(temp1), bd);
|
|
step1[25] = WRAPLOW(dct_const_round_shift(temp2), bd);
|
|
step1[23] = step2[23];
|
|
step1[24] = step2[24];
|
|
step1[27] = step2[27];
|
|
step1[28] = step2[28];
|
|
|
|
// stage 4
|
|
temp1 = (step1[0] + step1[1]) * cospi_16_64;
|
|
temp2 = (step1[0] - step1[1]) * cospi_16_64;
|
|
step2[0] = WRAPLOW(dct_const_round_shift(temp1), bd);
|
|
step2[1] = WRAPLOW(dct_const_round_shift(temp2), bd);
|
|
temp1 = step1[2] * cospi_24_64 - step1[3] * cospi_8_64;
|
|
temp2 = step1[2] * cospi_8_64 + step1[3] * cospi_24_64;
|
|
step2[2] = WRAPLOW(dct_const_round_shift(temp1), bd);
|
|
step2[3] = WRAPLOW(dct_const_round_shift(temp2), bd);
|
|
step2[4] = WRAPLOW(step1[4] + step1[5], bd);
|
|
step2[5] = WRAPLOW(step1[4] - step1[5], bd);
|
|
step2[6] = WRAPLOW(-step1[6] + step1[7], bd);
|
|
step2[7] = WRAPLOW(step1[6] + step1[7], bd);
|
|
|
|
step2[8] = step1[8];
|
|
step2[15] = step1[15];
|
|
temp1 = -step1[9] * cospi_8_64 + step1[14] * cospi_24_64;
|
|
temp2 = step1[9] * cospi_24_64 + step1[14] * cospi_8_64;
|
|
step2[9] = WRAPLOW(dct_const_round_shift(temp1), bd);
|
|
step2[14] = WRAPLOW(dct_const_round_shift(temp2), bd);
|
|
temp1 = -step1[10] * cospi_24_64 - step1[13] * cospi_8_64;
|
|
temp2 = -step1[10] * cospi_8_64 + step1[13] * cospi_24_64;
|
|
step2[10] = WRAPLOW(dct_const_round_shift(temp1), bd);
|
|
step2[13] = WRAPLOW(dct_const_round_shift(temp2), bd);
|
|
step2[11] = step1[11];
|
|
step2[12] = step1[12];
|
|
|
|
step2[16] = WRAPLOW(step1[16] + step1[19], bd);
|
|
step2[17] = WRAPLOW(step1[17] + step1[18], bd);
|
|
step2[18] = WRAPLOW(step1[17] - step1[18], bd);
|
|
step2[19] = WRAPLOW(step1[16] - step1[19], bd);
|
|
step2[20] = WRAPLOW(-step1[20] + step1[23], bd);
|
|
step2[21] = WRAPLOW(-step1[21] + step1[22], bd);
|
|
step2[22] = WRAPLOW(step1[21] + step1[22], bd);
|
|
step2[23] = WRAPLOW(step1[20] + step1[23], bd);
|
|
|
|
step2[24] = WRAPLOW(step1[24] + step1[27], bd);
|
|
step2[25] = WRAPLOW(step1[25] + step1[26], bd);
|
|
step2[26] = WRAPLOW(step1[25] - step1[26], bd);
|
|
step2[27] = WRAPLOW(step1[24] - step1[27], bd);
|
|
step2[28] = WRAPLOW(-step1[28] + step1[31], bd);
|
|
step2[29] = WRAPLOW(-step1[29] + step1[30], bd);
|
|
step2[30] = WRAPLOW(step1[29] + step1[30], bd);
|
|
step2[31] = WRAPLOW(step1[28] + step1[31], bd);
|
|
|
|
// stage 5
|
|
step1[0] = WRAPLOW(step2[0] + step2[3], bd);
|
|
step1[1] = WRAPLOW(step2[1] + step2[2], bd);
|
|
step1[2] = WRAPLOW(step2[1] - step2[2], bd);
|
|
step1[3] = WRAPLOW(step2[0] - step2[3], bd);
|
|
step1[4] = step2[4];
|
|
temp1 = (step2[6] - step2[5]) * cospi_16_64;
|
|
temp2 = (step2[5] + step2[6]) * cospi_16_64;
|
|
step1[5] = WRAPLOW(dct_const_round_shift(temp1), bd);
|
|
step1[6] = WRAPLOW(dct_const_round_shift(temp2), bd);
|
|
step1[7] = step2[7];
|
|
|
|
step1[8] = WRAPLOW(step2[8] + step2[11], bd);
|
|
step1[9] = WRAPLOW(step2[9] + step2[10], bd);
|
|
step1[10] = WRAPLOW(step2[9] - step2[10], bd);
|
|
step1[11] = WRAPLOW(step2[8] - step2[11], bd);
|
|
step1[12] = WRAPLOW(-step2[12] + step2[15], bd);
|
|
step1[13] = WRAPLOW(-step2[13] + step2[14], bd);
|
|
step1[14] = WRAPLOW(step2[13] + step2[14], bd);
|
|
step1[15] = WRAPLOW(step2[12] + step2[15], bd);
|
|
|
|
step1[16] = step2[16];
|
|
step1[17] = step2[17];
|
|
temp1 = -step2[18] * cospi_8_64 + step2[29] * cospi_24_64;
|
|
temp2 = step2[18] * cospi_24_64 + step2[29] * cospi_8_64;
|
|
step1[18] = WRAPLOW(dct_const_round_shift(temp1), bd);
|
|
step1[29] = WRAPLOW(dct_const_round_shift(temp2), bd);
|
|
temp1 = -step2[19] * cospi_8_64 + step2[28] * cospi_24_64;
|
|
temp2 = step2[19] * cospi_24_64 + step2[28] * cospi_8_64;
|
|
step1[19] = WRAPLOW(dct_const_round_shift(temp1), bd);
|
|
step1[28] = WRAPLOW(dct_const_round_shift(temp2), bd);
|
|
temp1 = -step2[20] * cospi_24_64 - step2[27] * cospi_8_64;
|
|
temp2 = -step2[20] * cospi_8_64 + step2[27] * cospi_24_64;
|
|
step1[20] = WRAPLOW(dct_const_round_shift(temp1), bd);
|
|
step1[27] = WRAPLOW(dct_const_round_shift(temp2), bd);
|
|
temp1 = -step2[21] * cospi_24_64 - step2[26] * cospi_8_64;
|
|
temp2 = -step2[21] * cospi_8_64 + step2[26] * cospi_24_64;
|
|
step1[21] = WRAPLOW(dct_const_round_shift(temp1), bd);
|
|
step1[26] = WRAPLOW(dct_const_round_shift(temp2), bd);
|
|
step1[22] = step2[22];
|
|
step1[23] = step2[23];
|
|
step1[24] = step2[24];
|
|
step1[25] = step2[25];
|
|
step1[30] = step2[30];
|
|
step1[31] = step2[31];
|
|
|
|
// stage 6
|
|
step2[0] = WRAPLOW(step1[0] + step1[7], bd);
|
|
step2[1] = WRAPLOW(step1[1] + step1[6], bd);
|
|
step2[2] = WRAPLOW(step1[2] + step1[5], bd);
|
|
step2[3] = WRAPLOW(step1[3] + step1[4], bd);
|
|
step2[4] = WRAPLOW(step1[3] - step1[4], bd);
|
|
step2[5] = WRAPLOW(step1[2] - step1[5], bd);
|
|
step2[6] = WRAPLOW(step1[1] - step1[6], bd);
|
|
step2[7] = WRAPLOW(step1[0] - step1[7], bd);
|
|
step2[8] = step1[8];
|
|
step2[9] = step1[9];
|
|
temp1 = (-step1[10] + step1[13]) * cospi_16_64;
|
|
temp2 = (step1[10] + step1[13]) * cospi_16_64;
|
|
step2[10] = WRAPLOW(dct_const_round_shift(temp1), bd);
|
|
step2[13] = WRAPLOW(dct_const_round_shift(temp2), bd);
|
|
temp1 = (-step1[11] + step1[12]) * cospi_16_64;
|
|
temp2 = (step1[11] + step1[12]) * cospi_16_64;
|
|
step2[11] = WRAPLOW(dct_const_round_shift(temp1), bd);
|
|
step2[12] = WRAPLOW(dct_const_round_shift(temp2), bd);
|
|
step2[14] = step1[14];
|
|
step2[15] = step1[15];
|
|
|
|
step2[16] = WRAPLOW(step1[16] + step1[23], bd);
|
|
step2[17] = WRAPLOW(step1[17] + step1[22], bd);
|
|
step2[18] = WRAPLOW(step1[18] + step1[21], bd);
|
|
step2[19] = WRAPLOW(step1[19] + step1[20], bd);
|
|
step2[20] = WRAPLOW(step1[19] - step1[20], bd);
|
|
step2[21] = WRAPLOW(step1[18] - step1[21], bd);
|
|
step2[22] = WRAPLOW(step1[17] - step1[22], bd);
|
|
step2[23] = WRAPLOW(step1[16] - step1[23], bd);
|
|
|
|
step2[24] = WRAPLOW(-step1[24] + step1[31], bd);
|
|
step2[25] = WRAPLOW(-step1[25] + step1[30], bd);
|
|
step2[26] = WRAPLOW(-step1[26] + step1[29], bd);
|
|
step2[27] = WRAPLOW(-step1[27] + step1[28], bd);
|
|
step2[28] = WRAPLOW(step1[27] + step1[28], bd);
|
|
step2[29] = WRAPLOW(step1[26] + step1[29], bd);
|
|
step2[30] = WRAPLOW(step1[25] + step1[30], bd);
|
|
step2[31] = WRAPLOW(step1[24] + step1[31], bd);
|
|
|
|
// stage 7
|
|
step1[0] = WRAPLOW(step2[0] + step2[15], bd);
|
|
step1[1] = WRAPLOW(step2[1] + step2[14], bd);
|
|
step1[2] = WRAPLOW(step2[2] + step2[13], bd);
|
|
step1[3] = WRAPLOW(step2[3] + step2[12], bd);
|
|
step1[4] = WRAPLOW(step2[4] + step2[11], bd);
|
|
step1[5] = WRAPLOW(step2[5] + step2[10], bd);
|
|
step1[6] = WRAPLOW(step2[6] + step2[9], bd);
|
|
step1[7] = WRAPLOW(step2[7] + step2[8], bd);
|
|
step1[8] = WRAPLOW(step2[7] - step2[8], bd);
|
|
step1[9] = WRAPLOW(step2[6] - step2[9], bd);
|
|
step1[10] = WRAPLOW(step2[5] - step2[10], bd);
|
|
step1[11] = WRAPLOW(step2[4] - step2[11], bd);
|
|
step1[12] = WRAPLOW(step2[3] - step2[12], bd);
|
|
step1[13] = WRAPLOW(step2[2] - step2[13], bd);
|
|
step1[14] = WRAPLOW(step2[1] - step2[14], bd);
|
|
step1[15] = WRAPLOW(step2[0] - step2[15], bd);
|
|
|
|
step1[16] = step2[16];
|
|
step1[17] = step2[17];
|
|
step1[18] = step2[18];
|
|
step1[19] = step2[19];
|
|
temp1 = (-step2[20] + step2[27]) * cospi_16_64;
|
|
temp2 = (step2[20] + step2[27]) * cospi_16_64;
|
|
step1[20] = WRAPLOW(dct_const_round_shift(temp1), bd);
|
|
step1[27] = WRAPLOW(dct_const_round_shift(temp2), bd);
|
|
temp1 = (-step2[21] + step2[26]) * cospi_16_64;
|
|
temp2 = (step2[21] + step2[26]) * cospi_16_64;
|
|
step1[21] = WRAPLOW(dct_const_round_shift(temp1), bd);
|
|
step1[26] = WRAPLOW(dct_const_round_shift(temp2), bd);
|
|
temp1 = (-step2[22] + step2[25]) * cospi_16_64;
|
|
temp2 = (step2[22] + step2[25]) * cospi_16_64;
|
|
step1[22] = WRAPLOW(dct_const_round_shift(temp1), bd);
|
|
step1[25] = WRAPLOW(dct_const_round_shift(temp2), bd);
|
|
temp1 = (-step2[23] + step2[24]) * cospi_16_64;
|
|
temp2 = (step2[23] + step2[24]) * cospi_16_64;
|
|
step1[23] = WRAPLOW(dct_const_round_shift(temp1), bd);
|
|
step1[24] = WRAPLOW(dct_const_round_shift(temp2), bd);
|
|
step1[28] = step2[28];
|
|
step1[29] = step2[29];
|
|
step1[30] = step2[30];
|
|
step1[31] = step2[31];
|
|
|
|
// final stage
|
|
output[0] = WRAPLOW(step1[0] + step1[31], bd);
|
|
output[1] = WRAPLOW(step1[1] + step1[30], bd);
|
|
output[2] = WRAPLOW(step1[2] + step1[29], bd);
|
|
output[3] = WRAPLOW(step1[3] + step1[28], bd);
|
|
output[4] = WRAPLOW(step1[4] + step1[27], bd);
|
|
output[5] = WRAPLOW(step1[5] + step1[26], bd);
|
|
output[6] = WRAPLOW(step1[6] + step1[25], bd);
|
|
output[7] = WRAPLOW(step1[7] + step1[24], bd);
|
|
output[8] = WRAPLOW(step1[8] + step1[23], bd);
|
|
output[9] = WRAPLOW(step1[9] + step1[22], bd);
|
|
output[10] = WRAPLOW(step1[10] + step1[21], bd);
|
|
output[11] = WRAPLOW(step1[11] + step1[20], bd);
|
|
output[12] = WRAPLOW(step1[12] + step1[19], bd);
|
|
output[13] = WRAPLOW(step1[13] + step1[18], bd);
|
|
output[14] = WRAPLOW(step1[14] + step1[17], bd);
|
|
output[15] = WRAPLOW(step1[15] + step1[16], bd);
|
|
output[16] = WRAPLOW(step1[15] - step1[16], bd);
|
|
output[17] = WRAPLOW(step1[14] - step1[17], bd);
|
|
output[18] = WRAPLOW(step1[13] - step1[18], bd);
|
|
output[19] = WRAPLOW(step1[12] - step1[19], bd);
|
|
output[20] = WRAPLOW(step1[11] - step1[20], bd);
|
|
output[21] = WRAPLOW(step1[10] - step1[21], bd);
|
|
output[22] = WRAPLOW(step1[9] - step1[22], bd);
|
|
output[23] = WRAPLOW(step1[8] - step1[23], bd);
|
|
output[24] = WRAPLOW(step1[7] - step1[24], bd);
|
|
output[25] = WRAPLOW(step1[6] - step1[25], bd);
|
|
output[26] = WRAPLOW(step1[5] - step1[26], bd);
|
|
output[27] = WRAPLOW(step1[4] - step1[27], bd);
|
|
output[28] = WRAPLOW(step1[3] - step1[28], bd);
|
|
output[29] = WRAPLOW(step1[2] - step1[29], bd);
|
|
output[30] = WRAPLOW(step1[1] - step1[30], bd);
|
|
output[31] = WRAPLOW(step1[0] - step1[31], bd);
|
|
}
|
|
|
|
void vp9_highbd_idct32x32_1024_add_c(const tran_low_t *input, uint8_t *dest8,
|
|
int stride, int bd) {
|
|
tran_low_t out[32 * 32];
|
|
tran_low_t *outptr = out;
|
|
int i, j;
|
|
tran_low_t temp_in[32], temp_out[32];
|
|
uint16_t *dest = CONVERT_TO_SHORTPTR(dest8);
|
|
|
|
// Rows
|
|
for (i = 0; i < 32; ++i) {
|
|
tran_low_t zero_coeff[16];
|
|
for (j = 0; j < 16; ++j)
|
|
zero_coeff[j] = input[2 * j] | input[2 * j + 1];
|
|
for (j = 0; j < 8; ++j)
|
|
zero_coeff[j] = zero_coeff[2 * j] | zero_coeff[2 * j + 1];
|
|
for (j = 0; j < 4; ++j)
|
|
zero_coeff[j] = zero_coeff[2 * j] | zero_coeff[2 * j + 1];
|
|
for (j = 0; j < 2; ++j)
|
|
zero_coeff[j] = zero_coeff[2 * j] | zero_coeff[2 * j + 1];
|
|
|
|
if (zero_coeff[0] | zero_coeff[1])
|
|
highbd_idct32(input, outptr, bd);
|
|
else
|
|
vpx_memset(outptr, 0, sizeof(tran_low_t) * 32);
|
|
input += 32;
|
|
outptr += 32;
|
|
}
|
|
|
|
// Columns
|
|
for (i = 0; i < 32; ++i) {
|
|
for (j = 0; j < 32; ++j)
|
|
temp_in[j] = out[j * 32 + i];
|
|
highbd_idct32(temp_in, temp_out, bd);
|
|
for (j = 0; j < 32; ++j) {
|
|
dest[j * stride + i] = highbd_clip_pixel_add(
|
|
dest[j * stride + i], ROUND_POWER_OF_TWO(temp_out[j], 6), bd);
|
|
}
|
|
}
|
|
}
|
|
|
|
void vp9_highbd_idct32x32_34_add_c(const tran_low_t *input, uint8_t *dest8,
|
|
int stride, int bd) {
|
|
tran_low_t out[32 * 32] = {0};
|
|
tran_low_t *outptr = out;
|
|
int i, j;
|
|
tran_low_t temp_in[32], temp_out[32];
|
|
uint16_t *dest = CONVERT_TO_SHORTPTR(dest8);
|
|
|
|
// Rows
|
|
// Only upper-left 8x8 has non-zero coeff.
|
|
for (i = 0; i < 8; ++i) {
|
|
highbd_idct32(input, outptr, bd);
|
|
input += 32;
|
|
outptr += 32;
|
|
}
|
|
// Columns
|
|
for (i = 0; i < 32; ++i) {
|
|
for (j = 0; j < 32; ++j)
|
|
temp_in[j] = out[j * 32 + i];
|
|
highbd_idct32(temp_in, temp_out, bd);
|
|
for (j = 0; j < 32; ++j) {
|
|
dest[j * stride + i] = highbd_clip_pixel_add(
|
|
dest[j * stride + i], ROUND_POWER_OF_TWO(temp_out[j], 6), bd);
|
|
}
|
|
}
|
|
}
|
|
|
|
void vp9_highbd_idct32x32_1_add_c(const tran_low_t *input, uint8_t *dest8,
|
|
int stride, int bd) {
|
|
int i, j;
|
|
int a1;
|
|
uint16_t *dest = CONVERT_TO_SHORTPTR(dest8);
|
|
|
|
tran_low_t out = WRAPLOW(dct_const_round_shift(input[0] * cospi_16_64), bd);
|
|
out = WRAPLOW(dct_const_round_shift(out * cospi_16_64), bd);
|
|
a1 = ROUND_POWER_OF_TWO(out, 6);
|
|
|
|
for (j = 0; j < 32; ++j) {
|
|
for (i = 0; i < 32; ++i)
|
|
dest[i] = highbd_clip_pixel_add(dest[i], a1, bd);
|
|
dest += stride;
|
|
}
|
|
}
|
|
|
|
// idct
|
|
void vp9_highbd_idct4x4_add(const tran_low_t *input, uint8_t *dest, int stride,
|
|
int eob, int bd) {
|
|
if (eob > 1)
|
|
vp9_highbd_idct4x4_16_add(input, dest, stride, bd);
|
|
else
|
|
vp9_highbd_idct4x4_1_add(input, dest, stride, bd);
|
|
}
|
|
|
|
|
|
void vp9_highbd_iwht4x4_add(const tran_low_t *input, uint8_t *dest, int stride,
|
|
int eob, int bd) {
|
|
if (eob > 1)
|
|
vp9_highbd_iwht4x4_16_add(input, dest, stride, bd);
|
|
else
|
|
vp9_highbd_iwht4x4_1_add(input, dest, stride, bd);
|
|
}
|
|
|
|
void vp9_highbd_idct8x8_add(const tran_low_t *input, uint8_t *dest, int stride,
|
|
int eob, int bd) {
|
|
// If dc is 1, then input[0] is the reconstructed value, do not need
|
|
// dequantization. Also, when dc is 1, dc is counted in eobs, namely eobs >=1.
|
|
|
|
// The calculation can be simplified if there are not many non-zero dct
|
|
// coefficients. Use eobs to decide what to do.
|
|
// TODO(yunqingwang): "eobs = 1" case is also handled in vp9_short_idct8x8_c.
|
|
// Combine that with code here.
|
|
// DC only DCT coefficient
|
|
if (eob == 1) {
|
|
vp9_highbd_idct8x8_1_add(input, dest, stride, bd);
|
|
} else if (eob <= 10) {
|
|
vp9_highbd_idct8x8_10_add(input, dest, stride, bd);
|
|
} else {
|
|
vp9_highbd_idct8x8_64_add(input, dest, stride, bd);
|
|
}
|
|
}
|
|
|
|
void vp9_highbd_idct16x16_add(const tran_low_t *input, uint8_t *dest,
|
|
int stride, int eob, int bd) {
|
|
// The calculation can be simplified if there are not many non-zero dct
|
|
// coefficients. Use eobs to separate different cases.
|
|
// DC only DCT coefficient.
|
|
if (eob == 1) {
|
|
vp9_highbd_idct16x16_1_add(input, dest, stride, bd);
|
|
} else if (eob <= 10) {
|
|
vp9_highbd_idct16x16_10_add(input, dest, stride, bd);
|
|
} else {
|
|
vp9_highbd_idct16x16_256_add(input, dest, stride, bd);
|
|
}
|
|
}
|
|
|
|
void vp9_highbd_idct32x32_add(const tran_low_t *input, uint8_t *dest,
|
|
int stride, int eob, int bd) {
|
|
// Non-zero coeff only in upper-left 8x8
|
|
if (eob == 1) {
|
|
vp9_highbd_idct32x32_1_add(input, dest, stride, bd);
|
|
} else if (eob <= 34) {
|
|
vp9_highbd_idct32x32_34_add(input, dest, stride, bd);
|
|
} else {
|
|
vp9_highbd_idct32x32_1024_add(input, dest, stride, bd);
|
|
}
|
|
}
|
|
|
|
// iht
|
|
void vp9_highbd_iht4x4_add(TX_TYPE tx_type, const tran_low_t *input,
|
|
uint8_t *dest, int stride, int eob, int bd) {
|
|
if (tx_type == DCT_DCT) {
|
|
vp9_highbd_idct4x4_add(input, dest, stride, eob, bd);
|
|
#if CONFIG_EXT_TX
|
|
} else if (is_dst_used(tx_type)) {
|
|
vp9_highbd_iht4x4_16_add_c(input, dest, stride, tx_type, bd);
|
|
#endif // CONFIG_EXT_TX
|
|
} else {
|
|
vp9_highbd_iht4x4_16_add(input, dest, stride, tx_type, bd);
|
|
}
|
|
}
|
|
|
|
void vp9_highbd_iht8x8_add(TX_TYPE tx_type, const tran_low_t *input,
|
|
uint8_t *dest, int stride, int eob, int bd) {
|
|
if (tx_type == DCT_DCT) {
|
|
vp9_highbd_idct8x8_add(input, dest, stride, eob, bd);
|
|
#if CONFIG_EXT_TX
|
|
} else if (is_dst_used(tx_type)) {
|
|
vp9_highbd_iht8x8_64_add_c(input, dest, stride, tx_type, bd);
|
|
#endif // CONFIG_EXT_TX
|
|
} else {
|
|
vp9_highbd_iht8x8_64_add(input, dest, stride, tx_type, bd);
|
|
}
|
|
}
|
|
|
|
void vp9_highbd_iht16x16_add(TX_TYPE tx_type, const tran_low_t *input,
|
|
uint8_t *dest, int stride, int eob, int bd) {
|
|
if (tx_type == DCT_DCT) {
|
|
vp9_highbd_idct16x16_add(input, dest, stride, eob, bd);
|
|
#if CONFIG_EXT_TX
|
|
} else if (is_dst_used(tx_type)) {
|
|
vp9_highbd_iht16x16_256_add_c(input, dest, stride, tx_type, bd);
|
|
#endif // CONFIG_EXT_TX
|
|
} else {
|
|
vp9_highbd_iht16x16_256_add(input, dest, stride, tx_type, bd);
|
|
}
|
|
}
|
|
|
|
#if CONFIG_TX64X64
|
|
void vp9_highbd_idct64x64_4096_add_c(const tran_low_t *input, uint8_t *dest8,
|
|
int stride, int bd) {
|
|
uint16_t *dest = CONVERT_TO_SHORTPTR(dest8);
|
|
// vp9_clear_system_state(); // Make it simd safe : __asm emms;
|
|
{
|
|
double out[64 * 64], out2[64 * 64];
|
|
int i, j;
|
|
// First transform rows
|
|
for (i = 0; i < 64; ++i) {
|
|
double temp_in[64], temp_out[64];
|
|
for (j = 0; j < 64; ++j)
|
|
temp_in[j] = input[j + i * 64];
|
|
butterfly_64_idct_1d(temp_in, temp_out, 1);
|
|
for (j = 0; j < 64; ++j)
|
|
out[j + i * 64] = temp_out[j];
|
|
}
|
|
// Then transform columns
|
|
for (i = 0; i < 64; ++i) {
|
|
double temp_in[64], temp_out[64];
|
|
for (j = 0; j < 64; ++j)
|
|
temp_in[j] = out[j * 64 + i];
|
|
butterfly_64_idct_1d(temp_in, temp_out, 1);
|
|
for (j = 0; j < 64; ++j)
|
|
out2[j * 64 + i] = temp_out[j];
|
|
}
|
|
|
|
for (j = 0; j < 64; ++j) {
|
|
for (i = 0; i < 64; ++i)
|
|
dest[i] = highbd_clip_pixel_add(
|
|
dest[i], round(out2[j * 64 + i] / 128), bd);
|
|
dest += stride;
|
|
}
|
|
}
|
|
// vp9_clear_system_state(); // Make it simd safe : __asm emms;
|
|
}
|
|
|
|
void vp9_highbd_idct64x64_add(const tran_low_t *input, uint8_t *dest,
|
|
int stride, int eob, int bd) {
|
|
(void) eob;
|
|
vp9_highbd_idct64x64_4096_add_c(input, dest, stride, bd);
|
|
}
|
|
#endif // CONFIG_TX64X64
|
|
#endif // CONFIG_VP9_HIGHBITDEPTH
|
|
|
|
#if CONFIG_SR_MODE
|
|
void vp9_iwht4x4_16_c(const tran_low_t *input, int16_t *dest, int stride) {
|
|
/* 4-point reversible, orthonormal inverse Walsh-Hadamard in 3.5 adds,
|
|
0.5 shifts per pixel. */
|
|
int i;
|
|
tran_low_t output[16];
|
|
tran_high_t a1, b1, c1, d1, e1;
|
|
const tran_low_t *ip = input;
|
|
tran_low_t *op = output;
|
|
|
|
for (i = 0; i < 4; i++) {
|
|
a1 = ip[0] >> UNIT_QUANT_SHIFT;
|
|
c1 = ip[1] >> UNIT_QUANT_SHIFT;
|
|
d1 = ip[2] >> UNIT_QUANT_SHIFT;
|
|
b1 = ip[3] >> UNIT_QUANT_SHIFT;
|
|
a1 += c1;
|
|
d1 -= b1;
|
|
e1 = (a1 - d1) >> 1;
|
|
b1 = e1 - b1;
|
|
c1 = e1 - c1;
|
|
a1 -= b1;
|
|
d1 += c1;
|
|
op[0] = WRAPLOW(a1, 8);
|
|
op[1] = WRAPLOW(b1, 8);
|
|
op[2] = WRAPLOW(c1, 8);
|
|
op[3] = WRAPLOW(d1, 8);
|
|
ip += 4;
|
|
op += 4;
|
|
}
|
|
|
|
ip = output;
|
|
for (i = 0; i < 4; i++) {
|
|
a1 = ip[4 * 0];
|
|
c1 = ip[4 * 1];
|
|
d1 = ip[4 * 2];
|
|
b1 = ip[4 * 3];
|
|
a1 += c1;
|
|
d1 -= b1;
|
|
e1 = (a1 - d1) >> 1;
|
|
b1 = e1 - b1;
|
|
c1 = e1 - c1;
|
|
a1 -= b1;
|
|
d1 += c1;
|
|
dest[stride * 0] = a1;
|
|
dest[stride * 1] = b1;
|
|
dest[stride * 2] = c1;
|
|
dest[stride * 3] = d1;
|
|
|
|
ip++;
|
|
dest++;
|
|
}
|
|
}
|
|
|
|
void vp9_iwht4x4_1_c(const tran_low_t *in, int16_t *dest, int dest_stride) {
|
|
int i;
|
|
tran_high_t a1, e1;
|
|
tran_low_t tmp[4];
|
|
const tran_low_t *ip = in;
|
|
tran_low_t *op = tmp;
|
|
|
|
a1 = ip[0] >> UNIT_QUANT_SHIFT;
|
|
e1 = a1 >> 1;
|
|
a1 -= e1;
|
|
op[0] = WRAPLOW(a1, 8);
|
|
op[1] = op[2] = op[3] = WRAPLOW(e1, 8);
|
|
|
|
ip = tmp;
|
|
for (i = 0; i < 4; i++) {
|
|
e1 = ip[0] >> 1;
|
|
a1 = ip[0] - e1;
|
|
dest[dest_stride * 0] = a1;
|
|
dest[dest_stride * 1] = e1;
|
|
dest[dest_stride * 2] = e1;
|
|
dest[dest_stride * 3] = e1;
|
|
ip++;
|
|
dest++;
|
|
}
|
|
}
|
|
|
|
void vp9_idct4x4_16_c(const tran_low_t *input, int16_t *dest, int stride) {
|
|
tran_low_t out[4 * 4];
|
|
tran_low_t *outptr = out;
|
|
int i, j;
|
|
tran_low_t temp_in[4], temp_out[4];
|
|
|
|
// Rows
|
|
for (i = 0; i < 4; ++i) {
|
|
idct4(input, outptr);
|
|
input += 4;
|
|
outptr += 4;
|
|
}
|
|
|
|
// Columns
|
|
for (i = 0; i < 4; ++i) {
|
|
for (j = 0; j < 4; ++j)
|
|
temp_in[j] = out[j * 4 + i];
|
|
idct4(temp_in, temp_out);
|
|
for (j = 0; j < 4; ++j) {
|
|
dest[j * stride + i] = ROUND_POWER_OF_TWO(temp_out[j], 4);
|
|
}
|
|
}
|
|
}
|
|
|
|
void vp9_idct4x4_1_c(const tran_low_t *input, int16_t *dest,
|
|
int dest_stride) {
|
|
int i;
|
|
tran_high_t a1;
|
|
tran_low_t out = WRAPLOW(dct_const_round_shift(input[0] * cospi_16_64), 8);
|
|
out = WRAPLOW(dct_const_round_shift(out * cospi_16_64), 8);
|
|
a1 = ROUND_POWER_OF_TWO(out, 4);
|
|
|
|
for (i = 0; i < 4; i++) {
|
|
dest[0] = a1;
|
|
dest[1] = a1;
|
|
dest[2] = a1;
|
|
dest[3] = a1;
|
|
dest += dest_stride;
|
|
}
|
|
}
|
|
|
|
void vp9_idct8x8_64_c(const tran_low_t *input, int16_t *dest, int stride) {
|
|
tran_low_t out[8 * 8];
|
|
tran_low_t *outptr = out;
|
|
int i, j;
|
|
tran_low_t temp_in[8], temp_out[8];
|
|
|
|
// First transform rows
|
|
for (i = 0; i < 8; ++i) {
|
|
idct8(input, outptr);
|
|
input += 8;
|
|
outptr += 8;
|
|
}
|
|
|
|
// Then transform columns
|
|
for (i = 0; i < 8; ++i) {
|
|
for (j = 0; j < 8; ++j)
|
|
temp_in[j] = out[j * 8 + i];
|
|
idct8(temp_in, temp_out);
|
|
for (j = 0; j < 8; ++j) {
|
|
dest[j * stride + i] = ROUND_POWER_OF_TWO(temp_out[j], 5);
|
|
}
|
|
}
|
|
}
|
|
|
|
void vp9_idct8x8_1_c(const tran_low_t *input, int16_t *dest, int stride) {
|
|
int i, j;
|
|
tran_high_t a1;
|
|
tran_low_t out = WRAPLOW(dct_const_round_shift(input[0] * cospi_16_64), 8);
|
|
out = WRAPLOW(dct_const_round_shift(out * cospi_16_64), 8);
|
|
a1 = ROUND_POWER_OF_TWO(out, 5);
|
|
for (j = 0; j < 8; ++j) {
|
|
for (i = 0; i < 8; ++i)
|
|
dest[i] = a1;
|
|
dest += stride;
|
|
}
|
|
}
|
|
|
|
void vp9_iht4x4_16_c(const tran_low_t *input, int16_t *dest, int stride,
|
|
int tx_type) {
|
|
const transform_2d IHT_4[] = {
|
|
{ idct4, idct4 }, // DCT_DCT = 0
|
|
{ iadst4, idct4 }, // ADST_DCT = 1
|
|
{ idct4, iadst4 }, // DCT_ADST = 2
|
|
{ iadst4, iadst4 }, // ADST_ADST = 3
|
|
#if CONFIG_EXT_TX
|
|
{ iadst4, idct4 }, // FLIPADST_DCT = 4
|
|
{ idct4, iadst4 }, // DCT_FLIPADST = 5
|
|
{ iadst4, iadst4 }, // FLIPADST_FLIPADST = 6
|
|
{ iadst4, iadst4 }, // ADST_FLIPADST = 7
|
|
{ iadst4, iadst4 }, // FLIPADST_ADST = 8
|
|
{ idst4, idst4 }, // DST_DST = 9
|
|
{ idst4, idct4 }, // DST_DCT = 10
|
|
{ idct4, idst4 }, // DCT_DST = 11
|
|
{ idst4, iadst4 }, // DST_ADST = 12
|
|
{ iadst4, idst4 }, // ADST_DST = 13
|
|
{ idst4, iadst4 }, // DST_FLIPADST = 14
|
|
{ iadst4, idst4 }, // FLIPADST_DST = 15
|
|
#endif // CONFIG_EXT_TX
|
|
};
|
|
|
|
int i, j;
|
|
tran_low_t out[4 * 4];
|
|
tran_low_t *outptr = out;
|
|
tran_low_t temp_in[4], temp_out[4];
|
|
|
|
// FIXME: If the SR_MODE experiment is resurrected, then this function must
|
|
// be fixed to handle the FLIPADST cases by actually flipping its output
|
|
// See the other vp9_iht*add_c functions
|
|
#if CONFIG_EXT_TX
|
|
assert(tx_type != FLIPADST_DCT);
|
|
assert(tx_type != DCT_FLIPADST);
|
|
assert(tx_type != FLIPADST_FLIPADST);
|
|
assert(tx_type != ADST_FLIPADST);
|
|
assert(tx_type != FLIPADST_ADST);
|
|
assert(tx_type != DST_FLIPADST);
|
|
assert(tx_type != FLIPADST_DST);
|
|
#endif // CONFIG_EXT_TX
|
|
|
|
// inverse transform row vectors
|
|
for (i = 0; i < 4; ++i) {
|
|
IHT_4[tx_type].rows(input, outptr);
|
|
input += 4;
|
|
outptr += 4;
|
|
}
|
|
|
|
// inverse transform column vectors
|
|
for (i = 0; i < 4; ++i) {
|
|
for (j = 0; j < 4; ++j)
|
|
temp_in[j] = out[j * 4 + i];
|
|
IHT_4[tx_type].cols(temp_in, temp_out);
|
|
for (j = 0; j < 4; ++j) {
|
|
dest[j * stride + i] = ROUND_POWER_OF_TWO(temp_out[j], 4);
|
|
}
|
|
}
|
|
}
|
|
|
|
void vp9_iht8x8_64_c(const tran_low_t *input, int16_t *dest, int stride,
|
|
int tx_type) {
|
|
int i, j;
|
|
tran_low_t out[8 * 8];
|
|
tran_low_t *outptr = out;
|
|
tran_low_t temp_in[8], temp_out[8];
|
|
const transform_2d ht = IHT_8[tx_type];
|
|
|
|
// FIXME: If the SR_MODE experiment is resurrected, then this function must
|
|
// be fixed to handle the FLIPADST cases by actually flipping its output
|
|
// See the other vp9_iht*add_c functions
|
|
#if CONFIG_EXT_TX
|
|
assert(tx_type != FLIPADST_DCT);
|
|
assert(tx_type != DCT_FLIPADST);
|
|
assert(tx_type != FLIPADST_FLIPADST);
|
|
assert(tx_type != ADST_FLIPADST);
|
|
assert(tx_type != FLIPADST_ADST);
|
|
assert(tx_type != DST_FLIPADST);
|
|
assert(tx_type != FLIPADST_DST);
|
|
#endif // CONFIG_EXT_TX
|
|
|
|
// inverse transform row vectors
|
|
for (i = 0; i < 8; ++i) {
|
|
ht.rows(input, outptr);
|
|
input += 8;
|
|
outptr += 8;
|
|
}
|
|
|
|
// inverse transform column vectors
|
|
for (i = 0; i < 8; ++i) {
|
|
for (j = 0; j < 8; ++j)
|
|
temp_in[j] = out[j * 8 + i];
|
|
ht.cols(temp_in, temp_out);
|
|
for (j = 0; j < 8; ++j) {
|
|
dest[j * stride + i] = ROUND_POWER_OF_TWO(temp_out[j], 5);
|
|
}
|
|
}
|
|
}
|
|
|
|
void vp9_idct8x8_12_c(const tran_low_t *input, int16_t *dest, int stride) {
|
|
tran_low_t out[8 * 8] = { 0 };
|
|
tran_low_t *outptr = out;
|
|
int i, j;
|
|
tran_low_t temp_in[8], temp_out[8];
|
|
|
|
// First transform rows
|
|
// only first 4 row has non-zero coefs
|
|
for (i = 0; i < 4; ++i) {
|
|
idct8(input, outptr);
|
|
input += 8;
|
|
outptr += 8;
|
|
}
|
|
|
|
// Then transform columns
|
|
for (i = 0; i < 8; ++i) {
|
|
for (j = 0; j < 8; ++j)
|
|
temp_in[j] = out[j * 8 + i];
|
|
idct8(temp_in, temp_out);
|
|
for (j = 0; j < 8; ++j) {
|
|
dest[j * stride + i] = ROUND_POWER_OF_TWO(temp_out[j], 5);
|
|
}
|
|
}
|
|
}
|
|
|
|
void vp9_idct16x16_256_c(const tran_low_t *input, int16_t *dest,
|
|
int stride) {
|
|
tran_low_t out[16 * 16];
|
|
tran_low_t *outptr = out;
|
|
int i, j;
|
|
tran_low_t temp_in[16], temp_out[16];
|
|
|
|
// First transform rows
|
|
for (i = 0; i < 16; ++i) {
|
|
idct16(input, outptr);
|
|
input += 16;
|
|
outptr += 16;
|
|
}
|
|
|
|
// Then transform columns
|
|
for (i = 0; i < 16; ++i) {
|
|
for (j = 0; j < 16; ++j)
|
|
temp_in[j] = out[j * 16 + i];
|
|
idct16(temp_in, temp_out);
|
|
for (j = 0; j < 16; ++j) {
|
|
dest[j * stride + i] = ROUND_POWER_OF_TWO(temp_out[j], 6);
|
|
}
|
|
}
|
|
}
|
|
|
|
void vp9_iht16x16_256_c(const tran_low_t *input, int16_t *dest, int stride,
|
|
int tx_type) {
|
|
int i, j;
|
|
tran_low_t out[16 * 16];
|
|
tran_low_t *outptr = out;
|
|
tran_low_t temp_in[16], temp_out[16];
|
|
const transform_2d ht = IHT_16[tx_type];
|
|
|
|
// FIXME: If the SR_MODE experiment is resurrected, then this function must
|
|
// be fixed to handle the FLIPADST cases by actually flipping its output
|
|
// See the other vp9_iht*add_c functions
|
|
#if CONFIG_EXT_TX
|
|
assert(tx_type != FLIPADST_DCT);
|
|
assert(tx_type != DCT_FLIPADST);
|
|
assert(tx_type != FLIPADST_FLIPADST);
|
|
assert(tx_type != ADST_FLIPADST);
|
|
assert(tx_type != FLIPADST_ADST);
|
|
assert(tx_type != DST_FLIPADST);
|
|
assert(tx_type != FLIPADST_DST);
|
|
#endif // CONFIG_EXT_TX
|
|
|
|
// Rows
|
|
for (i = 0; i < 16; ++i) {
|
|
ht.rows(input, outptr);
|
|
input += 16;
|
|
outptr += 16;
|
|
}
|
|
|
|
// Columns
|
|
for (i = 0; i < 16; ++i) {
|
|
for (j = 0; j < 16; ++j)
|
|
temp_in[j] = out[j * 16 + i];
|
|
ht.cols(temp_in, temp_out);
|
|
for (j = 0; j < 16; ++j) {
|
|
dest[j * stride + i] = ROUND_POWER_OF_TWO(temp_out[j], 6);
|
|
}
|
|
}
|
|
}
|
|
|
|
void vp9_idct16x16_10_c(const tran_low_t *input, int16_t *dest,
|
|
int stride) {
|
|
tran_low_t out[16 * 16] = { 0 };
|
|
tran_low_t *outptr = out;
|
|
int i, j;
|
|
tran_low_t temp_in[16], temp_out[16];
|
|
|
|
// First transform rows. Since all non-zero dct coefficients are in
|
|
// upper-left 4x4 area, we only need to calculate first 4 rows here.
|
|
for (i = 0; i < 4; ++i) {
|
|
idct16(input, outptr);
|
|
input += 16;
|
|
outptr += 16;
|
|
}
|
|
|
|
// Then transform columns
|
|
for (i = 0; i < 16; ++i) {
|
|
for (j = 0; j < 16; ++j)
|
|
temp_in[j] = out[j*16 + i];
|
|
idct16(temp_in, temp_out);
|
|
for (j = 0; j < 16; ++j) {
|
|
dest[j * stride + i] = ROUND_POWER_OF_TWO(temp_out[j], 6);
|
|
}
|
|
}
|
|
}
|
|
|
|
void vp9_idct16x16_1_c(const tran_low_t *input, int16_t *dest, int stride) {
|
|
int i, j;
|
|
tran_high_t a1;
|
|
tran_low_t out = WRAPLOW(dct_const_round_shift(input[0] * cospi_16_64), 8);
|
|
out = WRAPLOW(dct_const_round_shift(out * cospi_16_64), 8);
|
|
a1 = ROUND_POWER_OF_TWO(out, 6);
|
|
for (j = 0; j < 16; ++j) {
|
|
for (i = 0; i < 16; ++i)
|
|
dest[i] = a1;
|
|
dest += stride;
|
|
}
|
|
}
|
|
|
|
void vp9_idct32x32_1024_c(const tran_low_t *input, int16_t *dest,
|
|
int stride) {
|
|
tran_low_t out[32 * 32];
|
|
tran_low_t *outptr = out;
|
|
int i, j;
|
|
tran_low_t temp_in[32], temp_out[32];
|
|
|
|
// Rows
|
|
for (i = 0; i < 32; ++i) {
|
|
int16_t zero_coeff[16];
|
|
for (j = 0; j < 16; ++j)
|
|
zero_coeff[j] = input[2 * j] | input[2 * j + 1];
|
|
for (j = 0; j < 8; ++j)
|
|
zero_coeff[j] = zero_coeff[2 * j] | zero_coeff[2 * j + 1];
|
|
for (j = 0; j < 4; ++j)
|
|
zero_coeff[j] = zero_coeff[2 * j] | zero_coeff[2 * j + 1];
|
|
for (j = 0; j < 2; ++j)
|
|
zero_coeff[j] = zero_coeff[2 * j] | zero_coeff[2 * j + 1];
|
|
|
|
if (zero_coeff[0] | zero_coeff[1])
|
|
idct32(input, outptr);
|
|
else
|
|
vpx_memset(outptr, 0, sizeof(tran_low_t) * 32);
|
|
input += 32;
|
|
outptr += 32;
|
|
}
|
|
|
|
// Columns
|
|
for (i = 0; i < 32; ++i) {
|
|
for (j = 0; j < 32; ++j)
|
|
temp_in[j] = out[j * 32 + i];
|
|
idct32(temp_in, temp_out);
|
|
for (j = 0; j < 32; ++j) {
|
|
dest[j * stride + i] = ROUND_POWER_OF_TWO(temp_out[j], 6);
|
|
}
|
|
}
|
|
}
|
|
|
|
void vp9_idct32x32_34_c(const tran_low_t *input, int16_t *dest,
|
|
int stride) {
|
|
tran_low_t out[32 * 32] = {0};
|
|
tran_low_t *outptr = out;
|
|
int i, j;
|
|
tran_low_t temp_in[32], temp_out[32];
|
|
|
|
// Rows
|
|
// only upper-left 8x8 has non-zero coeff
|
|
for (i = 0; i < 8; ++i) {
|
|
idct32(input, outptr);
|
|
input += 32;
|
|
outptr += 32;
|
|
}
|
|
|
|
// Columns
|
|
for (i = 0; i < 32; ++i) {
|
|
for (j = 0; j < 32; ++j)
|
|
temp_in[j] = out[j * 32 + i];
|
|
idct32(temp_in, temp_out);
|
|
for (j = 0; j < 32; ++j) {
|
|
dest[j * stride + i] = ROUND_POWER_OF_TWO(temp_out[j], 6);
|
|
}
|
|
}
|
|
}
|
|
|
|
void vp9_idct32x32_1_c(const tran_low_t *input, int16_t *dest, int stride) {
|
|
int i, j;
|
|
tran_high_t a1;
|
|
|
|
tran_low_t out = WRAPLOW(dct_const_round_shift(input[0] * cospi_16_64), 8);
|
|
out = WRAPLOW(dct_const_round_shift(out * cospi_16_64), 8);
|
|
a1 = ROUND_POWER_OF_TWO(out, 6);
|
|
|
|
for (j = 0; j < 32; ++j) {
|
|
for (i = 0; i < 32; ++i)
|
|
dest[i] = a1;
|
|
dest += stride;
|
|
}
|
|
}
|
|
|
|
// idct
|
|
void vp9_idct4x4(const tran_low_t *input, int16_t *dest, int stride,
|
|
int eob) {
|
|
if (eob > 1)
|
|
vp9_idct4x4_16(input, dest, stride);
|
|
else
|
|
vp9_idct4x4_1(input, dest, stride);
|
|
}
|
|
|
|
|
|
void vp9_iwht4x4(const tran_low_t *input, int16_t *dest, int stride,
|
|
int eob) {
|
|
if (eob > 1)
|
|
vp9_iwht4x4_16(input, dest, stride);
|
|
else
|
|
vp9_iwht4x4_1(input, dest, stride);
|
|
}
|
|
|
|
void vp9_idct8x8(const tran_low_t *input, int16_t *dest, int stride,
|
|
int eob) {
|
|
// If dc is 1, then input[0] is the reconstructed value, do not need
|
|
// dequantization. Also, when dc is 1, dc is counted in eobs, namely eobs >=1.
|
|
|
|
// The calculation can be simplified if there are not many non-zero dct
|
|
// coefficients. Use eobs to decide what to do.
|
|
// TODO(yunqingwang): "eobs = 1" case is also handled in vp9_short_idct8x8_c.
|
|
// Combine that with code here.
|
|
if (eob == 1)
|
|
// DC only DCT coefficient
|
|
vp9_idct8x8_1(input, dest, stride);
|
|
else if (eob <= 12)
|
|
vp9_idct8x8_12(input, dest, stride);
|
|
else
|
|
vp9_idct8x8_64(input, dest, stride);
|
|
}
|
|
|
|
void vp9_idct16x16(const tran_low_t *input, int16_t *dest, int stride,
|
|
int eob) {
|
|
/* The calculation can be simplified if there are not many non-zero dct
|
|
* coefficients. Use eobs to separate different cases. */
|
|
if (eob == 1)
|
|
/* DC only DCT coefficient. */
|
|
vp9_idct16x16_1(input, dest, stride);
|
|
else if (eob <= 10)
|
|
vp9_idct16x16_10(input, dest, stride);
|
|
else
|
|
vp9_idct16x16_256(input, dest, stride);
|
|
}
|
|
|
|
void vp9_idct32x32(const tran_low_t *input, int16_t *dest, int stride,
|
|
int eob) {
|
|
if (eob == 1)
|
|
vp9_idct32x32_1(input, dest, stride);
|
|
else if (eob <= 34)
|
|
// non-zero coeff only in upper-left 8x8
|
|
vp9_idct32x32_34(input, dest, stride);
|
|
else
|
|
vp9_idct32x32_1024(input, dest, stride);
|
|
}
|
|
|
|
// iht
|
|
void vp9_iht4x4(TX_TYPE tx_type, const tran_low_t *input, int16_t *dest,
|
|
int stride, int eob) {
|
|
if (tx_type == DCT_DCT) {
|
|
vp9_idct4x4(input, dest, stride, eob);
|
|
#if CONFIG_EXT_TX
|
|
} else if (is_dst_used(tx_type)) {
|
|
vp9_iht4x4_16_c(input, dest, stride, tx_type);
|
|
#endif // CONFIG_EXT_TX
|
|
} else {
|
|
vp9_iht4x4_16(input, dest, stride, tx_type);
|
|
}
|
|
}
|
|
|
|
void vp9_iht8x8(TX_TYPE tx_type, const tran_low_t *input, int16_t *dest,
|
|
int stride, int eob) {
|
|
if (tx_type == DCT_DCT) {
|
|
vp9_idct8x8(input, dest, stride, eob);
|
|
#if CONFIG_EXT_TX
|
|
} else if (is_dst_used(tx_type)) {
|
|
vp9_iht8x8_64_c(input, dest, stride, tx_type);
|
|
#endif // CONFIG_EXT_TX
|
|
} else {
|
|
vp9_iht8x8_64(input, dest, stride, tx_type);
|
|
}
|
|
}
|
|
|
|
void vp9_iht16x16(TX_TYPE tx_type, const tran_low_t *input, int16_t *dest,
|
|
int stride, int eob) {
|
|
if (tx_type == DCT_DCT) {
|
|
vp9_idct16x16(input, dest, stride, eob);
|
|
#if CONFIG_EXT_TX
|
|
} else if (is_dst_used(tx_type)) {
|
|
vp9_iht16x16_256_c(input, dest, stride, tx_type);
|
|
#endif // CONFIG_EXT_TX
|
|
} else {
|
|
vp9_iht16x16_256(input, dest, stride, tx_type);
|
|
}
|
|
}
|
|
|
|
#if CONFIG_TX64X64
|
|
void vp9_idct64x64_4096_c(const tran_low_t *input, int16_t *dest,
|
|
int stride) {
|
|
// vp9_clear_system_state(); // Make it simd safe : __asm emms;
|
|
{
|
|
double out[64 * 64], out2[64 * 64];
|
|
int i, j;
|
|
// First transform rows
|
|
for (i = 0; i < 64; ++i) {
|
|
double temp_in[64], temp_out[64];
|
|
for (j = 0; j < 64; ++j)
|
|
temp_in[j] = input[j + i * 64];
|
|
butterfly_64_idct_1d(temp_in, temp_out, 1);
|
|
for (j = 0; j < 64; ++j)
|
|
out[j + i * 64] = temp_out[j];
|
|
}
|
|
// Then transform columns
|
|
for (i = 0; i < 64; ++i) {
|
|
double temp_in[64], temp_out[64];
|
|
for (j = 0; j < 64; ++j)
|
|
temp_in[j] = out[j * 64 + i];
|
|
butterfly_64_idct_1d(temp_in, temp_out, 1);
|
|
for (j = 0; j < 64; ++j)
|
|
out2[j * 64 + i] = temp_out[j];
|
|
}
|
|
|
|
for (j = 0; j < 64; ++j) {
|
|
for (i = 0; i < 64; ++i)
|
|
dest[i] = round(out2[j * 64 + i] / 128);
|
|
dest += stride;
|
|
}
|
|
}
|
|
// vp9_clear_system_state(); // Make it simd safe : __asm emms;
|
|
}
|
|
|
|
void vp9_idct64x64(const tran_low_t *input, int16_t *dest,
|
|
int stride, int eob) {
|
|
(void) eob;
|
|
vp9_idct64x64_4096_c(input, dest, stride);
|
|
}
|
|
#endif // CONFIG_TX64X64
|
|
#endif // CONFIG_SR_MODE
|