| /* |
| * Copyright (c) 2010 The WebM project authors. All Rights Reserved. |
| * |
| * Use of this source code is governed by a BSD-style license |
| * that can be found in the LICENSE file in the root of the source |
| * tree. An additional intellectual property rights grant can be found |
| * in the file PATENTS. All contributing project authors may |
| * be found in the AUTHORS file in the root of the source tree. |
| */ |
| |
| #include "vp9/common/vp9_invtrans.h" |
| #include "./vp9_rtcd.h" |
| |
| void vp9_inverse_transform_b_4x4(MACROBLOCKD *xd, int eob, |
| int16_t *dqcoeff, int16_t *diff, |
| int pitch) { |
| if (eob <= 1) |
| xd->inv_txm4x4_1(dqcoeff, diff, pitch); |
| else |
| xd->inv_txm4x4(dqcoeff, diff, pitch); |
| } |
| |
| void vp9_inverse_transform_mby_4x4(MACROBLOCKD *xd) { |
| int i; |
| |
| for (i = 0; i < 16; i++) { |
| TX_TYPE tx_type = get_tx_type_4x4(xd, i); |
| if (tx_type != DCT_DCT) { |
| vp9_short_iht4x4(xd->block[i].dqcoeff, xd->block[i].diff, 16, tx_type); |
| } else { |
| vp9_inverse_transform_b_4x4(xd, xd->eobs[i], xd->block[i].dqcoeff, |
| xd->block[i].diff, 32); |
| } |
| } |
| } |
| |
| void vp9_inverse_transform_mbuv_4x4(MACROBLOCKD *xd) { |
| int i; |
| |
| for (i = 16; i < 24; i++) { |
| vp9_inverse_transform_b_4x4(xd, xd->eobs[i], xd->block[i].dqcoeff, |
| xd->block[i].diff, 16); |
| } |
| } |
| |
| void vp9_inverse_transform_mb_4x4(MACROBLOCKD *xd) { |
| vp9_inverse_transform_mby_4x4(xd); |
| vp9_inverse_transform_mbuv_4x4(xd); |
| } |
| |
| void vp9_inverse_transform_b_8x8(int16_t *input_dqcoeff, int16_t *output_coeff, |
| int pitch) { |
| vp9_short_idct8x8(input_dqcoeff, output_coeff, pitch); |
| } |
| |
| void vp9_inverse_transform_mby_8x8(MACROBLOCKD *xd) { |
| int i; |
| BLOCKD *blockd = xd->block; |
| |
| for (i = 0; i < 9; i += 8) { |
| TX_TYPE tx_type = get_tx_type_8x8(xd, i); |
| if (tx_type != DCT_DCT) { |
| vp9_short_iht8x8(xd->block[i].dqcoeff, xd->block[i].diff, 16, tx_type); |
| } else { |
| vp9_inverse_transform_b_8x8(&blockd[i].dqcoeff[0], |
| &blockd[i].diff[0], 32); |
| } |
| } |
| for (i = 2; i < 11; i += 8) { |
| TX_TYPE tx_type = get_tx_type_8x8(xd, i); |
| if (tx_type != DCT_DCT) { |
| vp9_short_iht8x8(xd->block[i + 2].dqcoeff, xd->block[i].diff, |
| 16, tx_type); |
| } else { |
| vp9_inverse_transform_b_8x8(&blockd[i + 2].dqcoeff[0], |
| &blockd[i].diff[0], 32); |
| } |
| } |
| } |
| |
| void vp9_inverse_transform_mbuv_8x8(MACROBLOCKD *xd) { |
| int i; |
| BLOCKD *blockd = xd->block; |
| |
| for (i = 16; i < 24; i += 4) { |
| vp9_inverse_transform_b_8x8(&blockd[i].dqcoeff[0], |
| &blockd[i].diff[0], 16); |
| } |
| } |
| |
| void vp9_inverse_transform_mb_8x8(MACROBLOCKD *xd) { |
| vp9_inverse_transform_mby_8x8(xd); |
| vp9_inverse_transform_mbuv_8x8(xd); |
| } |
| |
| void vp9_inverse_transform_b_16x16(int16_t *input_dqcoeff, |
| int16_t *output_coeff, int pitch) { |
| vp9_short_idct16x16(input_dqcoeff, output_coeff, pitch); |
| } |
| |
| void vp9_inverse_transform_mby_16x16(MACROBLOCKD *xd) { |
| BLOCKD *bd = &xd->block[0]; |
| TX_TYPE tx_type = get_tx_type_16x16(xd, 0); |
| if (tx_type != DCT_DCT) { |
| vp9_short_iht16x16(bd->dqcoeff, bd->diff, 16, tx_type); |
| } else { |
| vp9_inverse_transform_b_16x16(&xd->block[0].dqcoeff[0], |
| &xd->block[0].diff[0], 32); |
| } |
| } |
| |
| void vp9_inverse_transform_mb_16x16(MACROBLOCKD *xd) { |
| vp9_inverse_transform_mby_16x16(xd); |
| vp9_inverse_transform_mbuv_8x8(xd); |
| } |
| |
| void vp9_inverse_transform_sby_32x32(MACROBLOCKD *xd) { |
| vp9_short_idct32x32(xd->dqcoeff, xd->diff, 64); |
| } |
| |
| void vp9_inverse_transform_sby_16x16(MACROBLOCKD *xd) { |
| int n; |
| |
| for (n = 0; n < 4; n++) { |
| const int x_idx = n & 1, y_idx = n >> 1; |
| const TX_TYPE tx_type = get_tx_type_16x16(xd, (y_idx * 8 + x_idx) * 4); |
| |
| if (tx_type == DCT_DCT) { |
| vp9_inverse_transform_b_16x16(xd->dqcoeff + n * 256, |
| xd->diff + x_idx * 16 + y_idx * 32 * 16, |
| 64); |
| } else { |
| vp9_short_iht16x16(xd->dqcoeff + n * 256, |
| xd->diff + x_idx * 16 + y_idx * 32 * 16, 32, tx_type); |
| } |
| } |
| } |
| |
| void vp9_inverse_transform_sby_8x8(MACROBLOCKD *xd) { |
| int n; |
| |
| for (n = 0; n < 16; n++) { |
| const int x_idx = n & 3, y_idx = n >> 2; |
| const TX_TYPE tx_type = get_tx_type_8x8(xd, (y_idx * 8 + x_idx) * 2); |
| |
| if (tx_type == DCT_DCT) { |
| vp9_inverse_transform_b_8x8(xd->dqcoeff + n * 64, |
| xd->diff + x_idx * 8 + y_idx * 32 * 8, 64); |
| } else { |
| vp9_short_iht8x8(xd->dqcoeff + n * 64, |
| xd->diff + x_idx * 8 + y_idx * 32 * 8, 32, tx_type); |
| } |
| } |
| } |
| |
| void vp9_inverse_transform_sby_4x4(MACROBLOCKD *xd) { |
| int n; |
| |
| for (n = 0; n < 64; n++) { |
| const int x_idx = n & 7, y_idx = n >> 3; |
| const TX_TYPE tx_type = get_tx_type_4x4(xd, y_idx * 8 + x_idx); |
| |
| if (tx_type == DCT_DCT) { |
| vp9_inverse_transform_b_4x4(xd, xd->eobs[n], xd->dqcoeff + n * 16, |
| xd->diff + x_idx * 4 + y_idx * 4 * 32, 64); |
| } else { |
| vp9_short_iht4x4(xd->dqcoeff + n * 16, |
| xd->diff + x_idx * 4 + y_idx * 4 * 32, 32, tx_type); |
| } |
| } |
| } |
| |
| void vp9_inverse_transform_sbuv_16x16(MACROBLOCKD *xd) { |
| vp9_inverse_transform_b_16x16(xd->dqcoeff + 1024, |
| xd->diff + 1024, 32); |
| vp9_inverse_transform_b_16x16(xd->dqcoeff + 1280, |
| xd->diff + 1280, 32); |
| } |
| |
| void vp9_inverse_transform_sbuv_8x8(MACROBLOCKD *xd) { |
| int n; |
| |
| for (n = 0; n < 4; n++) { |
| const int x_idx = n & 1, y_idx = n >> 1; |
| |
| vp9_inverse_transform_b_8x8(xd->dqcoeff + 1024 + n * 64, |
| xd->diff + 1024 + x_idx * 8 + y_idx * 16 * 8, |
| 32); |
| vp9_inverse_transform_b_8x8(xd->dqcoeff + 1280 + n * 64, |
| xd->diff + 1280 + x_idx * 8 + y_idx * 16 * 8, |
| 32); |
| } |
| } |
| |
| void vp9_inverse_transform_sbuv_4x4(MACROBLOCKD *xd) { |
| int n; |
| |
| for (n = 0; n < 16; n++) { |
| const int x_idx = n & 3, y_idx = n >> 2; |
| |
| vp9_inverse_transform_b_4x4(xd, xd->eobs[64 + n], |
| xd->dqcoeff + 1024 + n * 16, |
| xd->diff + 1024 + x_idx * 4 + y_idx * 16 * 4, |
| 32); |
| vp9_inverse_transform_b_4x4(xd, xd->eobs[64 + 16 + n], |
| xd->dqcoeff + 1280 + n * 16, |
| xd->diff + 1280 + x_idx * 4 + y_idx * 16 * 4, |
| 32); |
| } |
| } |
| |
| void vp9_inverse_transform_sb64y_32x32(MACROBLOCKD *xd) { |
| int n; |
| |
| for (n = 0; n < 4; n++) { |
| const int x_idx = n & 1, y_idx = n >> 1; |
| |
| vp9_short_idct32x32(xd->dqcoeff + n * 1024, |
| xd->diff + x_idx * 32 + y_idx * 32 * 64, 128); |
| } |
| } |
| |
| void vp9_inverse_transform_sb64y_16x16(MACROBLOCKD *xd) { |
| int n; |
| |
| for (n = 0; n < 16; n++) { |
| const int x_idx = n & 3, y_idx = n >> 2; |
| const TX_TYPE tx_type = get_tx_type_16x16(xd, (y_idx * 16 + x_idx) * 4); |
| |
| if (tx_type == DCT_DCT) { |
| vp9_inverse_transform_b_16x16(xd->dqcoeff + n * 256, |
| xd->diff + x_idx * 16 + y_idx * 64 * 16, |
| 128); |
| } else { |
| vp9_short_iht16x16(xd->dqcoeff + n * 256, |
| xd->diff + x_idx * 16 + y_idx * 64 * 16, 64, tx_type); |
| } |
| } |
| } |
| |
| void vp9_inverse_transform_sb64y_8x8(MACROBLOCKD *xd) { |
| int n; |
| |
| for (n = 0; n < 64; n++) { |
| const int x_idx = n & 7, y_idx = n >> 3; |
| const TX_TYPE tx_type = get_tx_type_8x8(xd, (y_idx * 16 + x_idx) * 2); |
| |
| if (tx_type == DCT_DCT) { |
| vp9_inverse_transform_b_8x8(xd->dqcoeff + n * 64, |
| xd->diff + x_idx * 8 + y_idx * 64 * 8, 128); |
| } else { |
| vp9_short_iht8x8(xd->dqcoeff + n * 64, |
| xd->diff + x_idx * 8 + y_idx * 64 * 8, 64, tx_type); |
| } |
| } |
| } |
| |
| void vp9_inverse_transform_sb64y_4x4(MACROBLOCKD *xd) { |
| int n; |
| |
| for (n = 0; n < 256; n++) { |
| const int x_idx = n & 15, y_idx = n >> 4; |
| const TX_TYPE tx_type = get_tx_type_4x4(xd, y_idx * 16 + x_idx); |
| |
| if (tx_type == DCT_DCT) { |
| vp9_inverse_transform_b_4x4(xd, xd->eobs[n], xd->dqcoeff + n * 16, |
| xd->diff + x_idx * 4 + y_idx * 4 * 64, 128); |
| } else { |
| vp9_short_iht4x4(xd->dqcoeff + n * 16, |
| xd->diff + x_idx * 4 + y_idx * 4 * 64, 64, tx_type); |
| } |
| } |
| } |
| |
| void vp9_inverse_transform_sb64uv_32x32(MACROBLOCKD *xd) { |
| vp9_short_idct32x32(xd->dqcoeff + 4096, |
| xd->diff + 4096, 64); |
| vp9_short_idct32x32(xd->dqcoeff + 4096 + 1024, |
| xd->diff + 4096 + 1024, 64); |
| } |
| |
| void vp9_inverse_transform_sb64uv_16x16(MACROBLOCKD *xd) { |
| int n; |
| |
| for (n = 0; n < 4; n++) { |
| const int x_idx = n & 1, y_idx = n >> 1, off = x_idx * 16 + y_idx * 32 * 16; |
| |
| vp9_inverse_transform_b_16x16(xd->dqcoeff + 4096 + n * 256, |
| xd->diff + 4096 + off, 64); |
| vp9_inverse_transform_b_16x16(xd->dqcoeff + 4096 + 1024 + n * 256, |
| xd->diff + 4096 + 1024 + off, 64); |
| } |
| } |
| |
| void vp9_inverse_transform_sb64uv_8x8(MACROBLOCKD *xd) { |
| int n; |
| |
| for (n = 0; n < 16; n++) { |
| const int x_idx = n & 3, y_idx = n >> 2, off = x_idx * 8 + y_idx * 32 * 8; |
| |
| vp9_inverse_transform_b_8x8(xd->dqcoeff + 4096 + n * 64, |
| xd->diff + 4096 + off, 64); |
| vp9_inverse_transform_b_8x8(xd->dqcoeff + 4096 + 1024 + n * 64, |
| xd->diff + 4096 + 1024 + off, 64); |
| } |
| } |
| |
| void vp9_inverse_transform_sb64uv_4x4(MACROBLOCKD *xd) { |
| int n; |
| |
| for (n = 0; n < 64; n++) { |
| const int x_idx = n & 7, y_idx = n >> 3, off = x_idx * 4 + y_idx * 32 * 4; |
| |
| vp9_inverse_transform_b_4x4(xd, xd->eobs[256 + n], |
| xd->dqcoeff + 4096 + n * 16, |
| xd->diff + 4096 + off, 64); |
| vp9_inverse_transform_b_4x4(xd, xd->eobs[256 + 64 + n], |
| xd->dqcoeff + 4096 + 1024 + n * 16, |
| xd->diff + 4096 + 1024 + off, 64); |
| } |
| } |
