136 lines
4.3 KiB
C
136 lines
4.3 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 "invtrans.h"
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static void recon_dcblock(MACROBLOCKD *xd) {
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BLOCKD *b = &xd->block[24];
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int i;
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for (i = 0; i < 16; i++) {
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xd->block[i].dqcoeff[0] = b->diff[i];
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}
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}
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static void recon_dcblock_8x8(MACROBLOCKD *xd) {
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BLOCKD *b = &xd->block[24]; // for coeff 0, 2, 8, 10
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xd->block[0].dqcoeff[0] = b->diff[0];
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xd->block[4].dqcoeff[0] = b->diff[1];
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xd->block[8].dqcoeff[0] = b->diff[4];
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xd->block[12].dqcoeff[0] = b->diff[8];
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}
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void vp9_inverse_transform_b_4x4(const vp9_idct_rtcd_vtable_t *rtcd,
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BLOCKD *b, int pitch) {
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if (b->eob <= 1)
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IDCT_INVOKE(rtcd, idct1)(b->dqcoeff, b->diff, pitch);
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else
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IDCT_INVOKE(rtcd, idct16)(b->dqcoeff, b->diff, pitch);
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}
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void vp9_inverse_transform_mby_4x4(const vp9_idct_rtcd_vtable_t *rtcd,
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MACROBLOCKD *xd) {
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int i;
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BLOCKD *blockd = xd->block;
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if (xd->mode_info_context->mbmi.mode != SPLITMV) {
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/* do 2nd order transform on the dc block */
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IDCT_INVOKE(rtcd, iwalsh16)(blockd[24].dqcoeff, blockd[24].diff);
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recon_dcblock(xd);
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}
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for (i = 0; i < 16; i++) {
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vp9_inverse_transform_b_4x4(rtcd, &blockd[i], 32);
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}
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}
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void vp9_inverse_transform_mbuv_4x4(const vp9_idct_rtcd_vtable_t *rtcd,
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MACROBLOCKD *xd) {
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int i;
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BLOCKD *blockd = xd->block;
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for (i = 16; i < 24; i++) {
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vp9_inverse_transform_b_4x4(rtcd, &blockd[i], 16);
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}
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}
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void vp9_inverse_transform_mb_4x4(const vp9_idct_rtcd_vtable_t *rtcd,
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MACROBLOCKD *xd) {
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vp9_inverse_transform_mby_4x4(rtcd, xd);
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vp9_inverse_transform_mbuv_4x4(rtcd, xd);
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}
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void vp9_inverse_transform_b_8x8(const vp9_idct_rtcd_vtable_t *rtcd,
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short *input_dqcoeff, short *output_coeff,
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int pitch) {
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// int b,i;
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// if (b->eob > 1)
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IDCT_INVOKE(rtcd, idct8)(input_dqcoeff, output_coeff, pitch);
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// else
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// IDCT_INVOKE(rtcd, idct8_1)(b->dqcoeff, b->diff, pitch);//pitch
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}
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void vp9_inverse_transform_mby_8x8(const vp9_idct_rtcd_vtable_t *rtcd,
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MACROBLOCKD *xd) {
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int i;
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BLOCKD *blockd = xd->block;
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if (xd->mode_info_context->mbmi.mode != SPLITMV) {
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// do 2nd order transform on the dc block
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IDCT_INVOKE(rtcd, ihaar2)(blockd[24].dqcoeff, blockd[24].diff, 8);
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recon_dcblock_8x8(xd); // need to change for 8x8
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}
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for (i = 0; i < 9; i += 8) {
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vp9_inverse_transform_b_8x8(rtcd, &blockd[i].dqcoeff[0],
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&blockd[i].diff[0], 32);
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}
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for (i = 2; i < 11; i += 8) {
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vp9_inverse_transform_b_8x8(rtcd, &blockd[i + 2].dqcoeff[0],
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&blockd[i].diff[0], 32);
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}
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}
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void vp9_inverse_transform_mbuv_8x8(const vp9_idct_rtcd_vtable_t *rtcd,
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MACROBLOCKD *xd) {
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int i;
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BLOCKD *blockd = xd->block;
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for (i = 16; i < 24; i += 4) {
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vp9_inverse_transform_b_8x8(rtcd, &blockd[i].dqcoeff[0],
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&blockd[i].diff[0], 16);
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}
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}
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void vp9_inverse_transform_mb_8x8(const vp9_idct_rtcd_vtable_t *rtcd,
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MACROBLOCKD *xd) {
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vp9_inverse_transform_mby_8x8(rtcd, xd);
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vp9_inverse_transform_mbuv_8x8(rtcd, xd);
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}
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void vp9_inverse_transform_b_16x16(const vp9_idct_rtcd_vtable_t *rtcd,
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short *input_dqcoeff,
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short *output_coeff, int pitch) {
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IDCT_INVOKE(rtcd, idct16x16)(input_dqcoeff, output_coeff, pitch);
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}
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void vp9_inverse_transform_mby_16x16(const vp9_idct_rtcd_vtable_t *rtcd,
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MACROBLOCKD *xd) {
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vp9_inverse_transform_b_16x16(rtcd, &xd->block[0].dqcoeff[0],
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&xd->block[0].diff[0], 32);
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}
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void vp9_inverse_transform_mb_16x16(const vp9_idct_rtcd_vtable_t *rtcd,
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MACROBLOCKD *xd) {
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vp9_inverse_transform_mby_16x16(rtcd, xd);
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vp9_inverse_transform_mbuv_8x8(rtcd, xd);
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}
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