| /* |
| * 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. |
| */ |
| |
| #ifndef VPX_VP8_COMMON_INVTRANS_H_ |
| #define VPX_VP8_COMMON_INVTRANS_H_ |
| |
| #include "./vpx_config.h" |
| #include "vp8_rtcd.h" |
| #include "blockd.h" |
| #include "onyxc_int.h" |
| |
| #if CONFIG_MULTITHREAD |
| #include "vpx_mem/vpx_mem.h" |
| #endif |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| static void eob_adjust(char *eobs, short *diff) { |
| /* eob adjust.... the idct can only skip if both the dc and eob are zero */ |
| int js; |
| for (js = 0; js < 16; ++js) { |
| if ((eobs[js] == 0) && (diff[0] != 0)) eobs[js]++; |
| diff += 16; |
| } |
| } |
| |
| static INLINE void vp8_inverse_transform_mby(MACROBLOCKD *xd) { |
| short *DQC = xd->dequant_y1; |
| |
| if (xd->mode_info_context->mbmi.mode != SPLITMV) { |
| /* do 2nd order transform on the dc block */ |
| if (xd->eobs[24] > 1) { |
| vp8_short_inv_walsh4x4(&xd->block[24].dqcoeff[0], xd->qcoeff); |
| } else { |
| vp8_short_inv_walsh4x4_1(&xd->block[24].dqcoeff[0], xd->qcoeff); |
| } |
| eob_adjust(xd->eobs, xd->qcoeff); |
| |
| DQC = xd->dequant_y1_dc; |
| } |
| vp8_dequant_idct_add_y_block(xd->qcoeff, DQC, xd->dst.y_buffer, |
| xd->dst.y_stride, xd->eobs); |
| } |
| #ifdef __cplusplus |
| } // extern "C" |
| #endif |
| |
| #endif // VPX_VP8_COMMON_INVTRANS_H_ |