2 * Copyright (c) 2010 The WebM project authors. All Rights Reserved.
4 * Use of this source code is governed by a BSD-style license
5 * that can be found in the LICENSE file in the root of the source
6 * tree. An additional intellectual property rights grant can be found
7 * in the file PATENTS. All contributing project authors may
8 * be found in the AUTHORS file in the root of the source tree.
12 #ifndef __INC_INVTRANS_H
13 #define __INC_INVTRANS_H
15 #include "vpx_config.h"
18 #include "onyxc_int.h"
20 #if CONFIG_MULTITHREAD
21 #include "vpx_mem/vpx_mem.h"
24 static void eob_adjust(char *eobs, short *diff)
26 /* eob adjust.... the idct can only skip if both the dc and eob are zero */
28 for(js = 0; js < 16; js++)
30 if((eobs[js] == 0) && (diff[0] != 0))
36 static void vp8_inverse_transform_mby(MACROBLOCKD *xd)
38 short *DQC = xd->dequant_y1;
40 if (xd->mode_info_context->mbmi.mode != SPLITMV)
42 /* do 2nd order transform on the dc block */
45 vp8_short_inv_walsh4x4
46 (&xd->block[24].dqcoeff[0], xd->qcoeff);
50 vp8_short_inv_walsh4x4_1
51 (&xd->block[24].dqcoeff[0], xd->qcoeff);
53 eob_adjust(xd->eobs, xd->qcoeff);
55 DQC = xd->dequant_y1_dc;
57 vp8_dequant_idct_add_y_block
60 xd->dst.y_stride, xd->eobs);