190d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber/* 2f71323e297a928af368937089d3ed71239786f86Andreas Huber * Copyright (c) 2010 The WebM project authors. All Rights Reserved. 390d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber * 4f71323e297a928af368937089d3ed71239786f86Andreas Huber * Use of this source code is governed by a BSD-style license 5f71323e297a928af368937089d3ed71239786f86Andreas Huber * that can be found in the LICENSE file in the root of the source 6f71323e297a928af368937089d3ed71239786f86Andreas Huber * tree. An additional intellectual property rights grant can be found 7f71323e297a928af368937089d3ed71239786f86Andreas Huber * in the file PATENTS. All contributing project authors may 8f71323e297a928af368937089d3ed71239786f86Andreas Huber * be found in the AUTHORS file in the root of the source tree. 990d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber */ 1090d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber 1190d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber 1290d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber#include "invtrans.h" 1390d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber 1490d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber 1590d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber 1690d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huberstatic void recon_dcblock(MACROBLOCKD *x) 1790d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber{ 1890d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber BLOCKD *b = &x->block[24]; 1990d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber int i; 2090d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber 2190d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber for (i = 0; i < 16; i++) 2290d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber { 2390d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber x->block[i].dqcoeff[0] = b->diff[i]; 2490d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber } 2590d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber 2690d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber} 2790d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber 2890d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Hubervoid vp8_inverse_transform_b(const vp8_idct_rtcd_vtable_t *rtcd, BLOCKD *b, int pitch) 2990d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber{ 3090d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber if (b->eob > 1) 3190d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber IDCT_INVOKE(rtcd, idct16)(b->dqcoeff, b->diff, pitch); 3290d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber else 3390d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber IDCT_INVOKE(rtcd, idct1)(b->dqcoeff, b->diff, pitch); 3490d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber} 3590d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber 3690d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber 3790d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Hubervoid vp8_inverse_transform_mby(const vp8_idct_rtcd_vtable_t *rtcd, MACROBLOCKD *x) 3890d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber{ 3990d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber int i; 4090d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber 41538f6170b788de7408b06efc6613dc98579aa6a6Andreas Huber /* do 2nd order transform on the dc block */ 4290d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber IDCT_INVOKE(rtcd, iwalsh16)(x->block[24].dqcoeff, x->block[24].diff); 4390d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber 4490d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber recon_dcblock(x); 4590d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber 4690d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber for (i = 0; i < 16; i++) 4790d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber { 4890d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber vp8_inverse_transform_b(rtcd, &x->block[i], 32); 4990d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber } 5090d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber 5190d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber} 5290d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Hubervoid vp8_inverse_transform_mbuv(const vp8_idct_rtcd_vtable_t *rtcd, MACROBLOCKD *x) 5390d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber{ 5490d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber int i; 5590d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber 5690d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber for (i = 16; i < 24; i++) 5790d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber { 5890d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber vp8_inverse_transform_b(rtcd, &x->block[i], 16); 5990d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber } 6090d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber 6190d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber} 6290d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber 6390d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber 6490d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Hubervoid vp8_inverse_transform_mb(const vp8_idct_rtcd_vtable_t *rtcd, MACROBLOCKD *x) 6590d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber{ 6690d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber int i; 6790d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber 68f71323e297a928af368937089d3ed71239786f86Andreas Huber if (x->mode_info_context->mbmi.mode != B_PRED && 69f71323e297a928af368937089d3ed71239786f86Andreas Huber x->mode_info_context->mbmi.mode != SPLITMV) 7090d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber { 71538f6170b788de7408b06efc6613dc98579aa6a6Andreas Huber /* do 2nd order transform on the dc block */ 7290d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber 7390d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber IDCT_INVOKE(rtcd, iwalsh16)(&x->block[24].dqcoeff[0], x->block[24].diff); 7490d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber recon_dcblock(x); 7590d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber } 7690d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber 7790d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber for (i = 0; i < 16; i++) 7890d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber { 7990d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber vp8_inverse_transform_b(rtcd, &x->block[i], 32); 8090d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber } 8190d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber 8290d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber 8390d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber for (i = 16; i < 24; i++) 8490d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber { 8590d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber vp8_inverse_transform_b(rtcd, &x->block[i], 16); 8690d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber } 8790d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber 8890d3ed91ae9228e1c8bab561b6138d4cb8c1e4fdAndreas Huber} 89