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/*
* Copyright (c) 2012 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.
*/
#if CONFIG_ROTATION
typedef struct {
int y;
int x;
unsigned long t;
} tap;
typedef struct {
tap pt[4];
} point_taps;
typedef struct {
point_taps pt[256];
} mb_taps;
mb_taps mt_8x8[] = {
#include "rotate2.h"
};
mb_taps mt[] = {
#include "rotate.h"
};
void predict_rotated_16x16(int rotation_index, unsigned char *src, int sp,
unsigned char *dst, int dp) {
int i, j, k, p = 0;
for (i = 0; i < 16; i++, dst += dp) {
for (j = 0; j < 16; j++, p++) {
unsigned int sum = 32768;
for (k = 0; k < 4; k++) {
tap *tp = &mt[rotation_index].pt[p].pt[k];
sum += src[tp->y * sp + tp->x] * tp->t;
}
sum >>= 16;
dst[j] = sum;
}
}
}
void predict_rotated_8x8(int rotation_index, unsigned char *src, int sp,
unsigned char *dst, int dp) {
int i, j, k, p = 0;
for (i = 0; i < 8; i++, dst += dp) {
for (j = 0; j < 8; j++, p++) {
unsigned int sum = 32768;
for (k = 0; k < 4; k++) {
tap *tp = &mt_8x8[rotation_index].pt[p].pt[k];
sum += src[tp->y * sp + tp->x] * tp->t;
}
sum >>= 16;
dst[j] = sum;
}
}
}
#endif
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