/media/libvpx/vp8/common/recon.c
http://github.com/zpao/v8monkey · C · 181 lines · 134 code · 34 blank · 13 comment · 15 complexity · 3ab6cac90b212b257d3fe6b98e8a865c MD5 · raw file
- /*
- * 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.
- */
- #include "vpx_ports/config.h"
- #include "recon.h"
- #include "blockd.h"
- void vp8_recon_b_c
- (
- unsigned char *pred_ptr,
- short *diff_ptr,
- unsigned char *dst_ptr,
- int stride
- )
- {
- int r, c;
- for (r = 0; r < 4; r++)
- {
- for (c = 0; c < 4; c++)
- {
- int a = diff_ptr[c] + pred_ptr[c] ;
- if (a < 0)
- a = 0;
- if (a > 255)
- a = 255;
- dst_ptr[c] = (unsigned char) a ;
- }
- dst_ptr += stride;
- diff_ptr += 16;
- pred_ptr += 16;
- }
- }
- void vp8_recon4b_c
- (
- unsigned char *pred_ptr,
- short *diff_ptr,
- unsigned char *dst_ptr,
- int stride
- )
- {
- int r, c;
- for (r = 0; r < 4; r++)
- {
- for (c = 0; c < 16; c++)
- {
- int a = diff_ptr[c] + pred_ptr[c] ;
- if (a < 0)
- a = 0;
- if (a > 255)
- a = 255;
- dst_ptr[c] = (unsigned char) a ;
- }
- dst_ptr += stride;
- diff_ptr += 16;
- pred_ptr += 16;
- }
- }
- void vp8_recon2b_c
- (
- unsigned char *pred_ptr,
- short *diff_ptr,
- unsigned char *dst_ptr,
- int stride
- )
- {
- int r, c;
- for (r = 0; r < 4; r++)
- {
- for (c = 0; c < 8; c++)
- {
- int a = diff_ptr[c] + pred_ptr[c] ;
- if (a < 0)
- a = 0;
- if (a > 255)
- a = 255;
- dst_ptr[c] = (unsigned char) a ;
- }
- dst_ptr += stride;
- diff_ptr += 8;
- pred_ptr += 8;
- }
- }
- void vp8_recon_mby_c(const vp8_recon_rtcd_vtable_t *rtcd, MACROBLOCKD *x)
- {
- #if ARCH_ARM
- BLOCKD *b = &x->block[0];
- RECON_INVOKE(rtcd, recon4)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
- /*b = &x->block[4];*/
- b += 4;
- RECON_INVOKE(rtcd, recon4)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
- /*b = &x->block[8];*/
- b += 4;
- RECON_INVOKE(rtcd, recon4)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
- /*b = &x->block[12];*/
- b += 4;
- RECON_INVOKE(rtcd, recon4)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
- #else
- int i;
- for (i = 0; i < 16; i += 4)
- {
- BLOCKD *b = &x->block[i];
- RECON_INVOKE(rtcd, recon4)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
- }
- #endif
- }
- void vp8_recon_mb_c(const vp8_recon_rtcd_vtable_t *rtcd, MACROBLOCKD *x)
- {
- #if ARCH_ARM
- BLOCKD *b = &x->block[0];
- RECON_INVOKE(rtcd, recon4)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
- b += 4;
- RECON_INVOKE(rtcd, recon4)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
- b += 4;
- RECON_INVOKE(rtcd, recon4)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
- b += 4;
- RECON_INVOKE(rtcd, recon4)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
- b += 4;
- /*b = &x->block[16];*/
- RECON_INVOKE(rtcd, recon2)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
- b++;
- b++;
- RECON_INVOKE(rtcd, recon2)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
- b++;
- b++;
- RECON_INVOKE(rtcd, recon2)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
- b++;
- b++;
- RECON_INVOKE(rtcd, recon2)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
- #else
- int i;
- for (i = 0; i < 16; i += 4)
- {
- BLOCKD *b = &x->block[i];
- RECON_INVOKE(rtcd, recon4)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
- }
- for (i = 16; i < 24; i += 2)
- {
- BLOCKD *b = &x->block[i];
- RECON_INVOKE(rtcd, recon2)(b->predictor, b->diff, *(b->base_dst) + b->dst, b->dst_stride);
- }
- #endif
- }