3e04114f3d
Applied the following regex : search for: (for.*\(.*;.*;) ([a-zA-Z_]*)\+\+\) replace with: \1 ++\2) This misses some for loops: ie : for (mb_col = 0; mb_col < oci->mb_cols; mb_col++, mi++) Change-Id: Icf5f6fb93cced0992e0bb71d2241780f7fb1f0a8
109 lines
2.3 KiB
C
109 lines
2.3 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 <math.h>
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#include "./vp8_rtcd.h"
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void vp8_short_fdct4x4_c(short *input, short *output, int pitch) {
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int i;
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int a1, b1, c1, d1;
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short *ip = input;
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short *op = output;
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for (i = 0; i < 4; ++i) {
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a1 = ((ip[0] + ip[3]) * 8);
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b1 = ((ip[1] + ip[2]) * 8);
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c1 = ((ip[1] - ip[2]) * 8);
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d1 = ((ip[0] - ip[3]) * 8);
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op[0] = a1 + b1;
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op[2] = a1 - b1;
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op[1] = (c1 * 2217 + d1 * 5352 + 14500) >> 12;
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op[3] = (d1 * 2217 - c1 * 5352 + 7500) >> 12;
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ip += pitch / 2;
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op += 4;
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}
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ip = output;
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op = output;
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for (i = 0; i < 4; ++i) {
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a1 = ip[0] + ip[12];
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b1 = ip[4] + ip[8];
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c1 = ip[4] - ip[8];
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d1 = ip[0] - ip[12];
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op[0] = (a1 + b1 + 7) >> 4;
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op[8] = (a1 - b1 + 7) >> 4;
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op[4] = ((c1 * 2217 + d1 * 5352 + 12000) >> 16) + (d1 != 0);
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op[12] = (d1 * 2217 - c1 * 5352 + 51000) >> 16;
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ip++;
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op++;
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}
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}
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void vp8_short_fdct8x4_c(short *input, short *output, int pitch) {
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vp8_short_fdct4x4_c(input, output, pitch);
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vp8_short_fdct4x4_c(input + 4, output + 16, pitch);
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}
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void vp8_short_walsh4x4_c(short *input, short *output, int pitch) {
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int i;
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int a1, b1, c1, d1;
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int a2, b2, c2, d2;
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short *ip = input;
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short *op = output;
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for (i = 0; i < 4; ++i) {
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a1 = ((ip[0] + ip[2]) * 4);
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d1 = ((ip[1] + ip[3]) * 4);
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c1 = ((ip[1] - ip[3]) * 4);
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b1 = ((ip[0] - ip[2]) * 4);
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op[0] = a1 + d1 + (a1 != 0);
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op[1] = b1 + c1;
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op[2] = b1 - c1;
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op[3] = a1 - d1;
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ip += pitch / 2;
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op += 4;
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}
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ip = output;
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op = output;
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for (i = 0; i < 4; ++i) {
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a1 = ip[0] + ip[8];
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d1 = ip[4] + ip[12];
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c1 = ip[4] - ip[12];
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b1 = ip[0] - ip[8];
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a2 = a1 + d1;
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b2 = b1 + c1;
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c2 = b1 - c1;
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d2 = a1 - d1;
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a2 += a2 < 0;
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b2 += b2 < 0;
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c2 += c2 < 0;
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d2 += d2 < 0;
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op[0] = (a2 + 3) >> 3;
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op[4] = (b2 + 3) >> 3;
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op[8] = (c2 + 3) >> 3;
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op[12] = (d2 + 3) >> 3;
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ip++;
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op++;
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}
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}
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