1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/media/libvpx/vp8/common/invtrans.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,62 @@
1.4 +/*
1.5 + * Copyright (c) 2010 The WebM project authors. All Rights Reserved.
1.6 + *
1.7 + * Use of this source code is governed by a BSD-style license
1.8 + * that can be found in the LICENSE file in the root of the source
1.9 + * tree. An additional intellectual property rights grant can be found
1.10 + * in the file PATENTS. All contributing project authors may
1.11 + * be found in the AUTHORS file in the root of the source tree.
1.12 + */
1.13 +
1.14 +
1.15 +#ifndef __INC_INVTRANS_H
1.16 +#define __INC_INVTRANS_H
1.17 +
1.18 +#include "vpx_config.h"
1.19 +#include "vp8_rtcd.h"
1.20 +#include "blockd.h"
1.21 +#include "onyxc_int.h"
1.22 +
1.23 +#if CONFIG_MULTITHREAD
1.24 +#include "vpx_mem/vpx_mem.h"
1.25 +#endif
1.26 +
1.27 +static void eob_adjust(char *eobs, short *diff)
1.28 +{
1.29 + /* eob adjust.... the idct can only skip if both the dc and eob are zero */
1.30 + int js;
1.31 + for(js = 0; js < 16; js++)
1.32 + {
1.33 + if((eobs[js] == 0) && (diff[0] != 0))
1.34 + eobs[js]++;
1.35 + diff+=16;
1.36 + }
1.37 +}
1.38 +
1.39 +static void vp8_inverse_transform_mby(MACROBLOCKD *xd)
1.40 +{
1.41 + short *DQC = xd->dequant_y1;
1.42 +
1.43 + if (xd->mode_info_context->mbmi.mode != SPLITMV)
1.44 + {
1.45 + /* do 2nd order transform on the dc block */
1.46 + if (xd->eobs[24] > 1)
1.47 + {
1.48 + vp8_short_inv_walsh4x4
1.49 + (&xd->block[24].dqcoeff[0], xd->qcoeff);
1.50 + }
1.51 + else
1.52 + {
1.53 + vp8_short_inv_walsh4x4_1
1.54 + (&xd->block[24].dqcoeff[0], xd->qcoeff);
1.55 + }
1.56 + eob_adjust(xd->eobs, xd->qcoeff);
1.57 +
1.58 + DQC = xd->dequant_y1_dc;
1.59 + }
1.60 + vp8_dequant_idct_add_y_block
1.61 + (xd->qcoeff, DQC,
1.62 + xd->dst.y_buffer,
1.63 + xd->dst.y_stride, xd->eobs);
1.64 +}
1.65 +#endif
