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https://github.com/classilla/tenfourfox.git
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108 lines
3.9 KiB
C
108 lines
3.9 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 "./vpx_dsp_rtcd.h"
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extern void vpx_get4x4var_mmx(const uint8_t *a, int a_stride,
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const uint8_t *b, int b_stride,
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unsigned int *sse, int *sum);
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unsigned int vpx_variance4x4_mmx(const unsigned char *a, int a_stride,
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const unsigned char *b, int b_stride,
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unsigned int *sse) {
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unsigned int var;
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int avg;
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vpx_get4x4var_mmx(a, a_stride, b, b_stride, &var, &avg);
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*sse = var;
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return (var - (((unsigned int)avg * avg) >> 4));
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}
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unsigned int vpx_variance8x8_mmx(const unsigned char *a, int a_stride,
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const unsigned char *b, int b_stride,
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unsigned int *sse) {
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unsigned int var;
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int avg;
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vpx_get8x8var_mmx(a, a_stride, b, b_stride, &var, &avg);
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*sse = var;
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return (var - (((unsigned int)avg * avg) >> 6));
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}
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unsigned int vpx_mse16x16_mmx(const unsigned char *a, int a_stride,
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const unsigned char *b, int b_stride,
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unsigned int *sse) {
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unsigned int sse0, sse1, sse2, sse3, var;
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int sum0, sum1, sum2, sum3;
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vpx_get8x8var_mmx(a, a_stride, b, b_stride, &sse0, &sum0);
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vpx_get8x8var_mmx(a + 8, a_stride, b + 8, b_stride, &sse1, &sum1);
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vpx_get8x8var_mmx(a + 8 * a_stride, a_stride,
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b + 8 * b_stride, b_stride, &sse2, &sum2);
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vpx_get8x8var_mmx(a + 8 * a_stride + 8, a_stride,
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b + 8 * b_stride + 8, b_stride, &sse3, &sum3);
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var = sse0 + sse1 + sse2 + sse3;
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*sse = var;
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return var;
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}
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unsigned int vpx_variance16x16_mmx(const unsigned char *a, int a_stride,
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const unsigned char *b, int b_stride,
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unsigned int *sse) {
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unsigned int sse0, sse1, sse2, sse3, var;
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int sum0, sum1, sum2, sum3, avg;
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vpx_get8x8var_mmx(a, a_stride, b, b_stride, &sse0, &sum0);
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vpx_get8x8var_mmx(a + 8, a_stride, b + 8, b_stride, &sse1, &sum1);
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vpx_get8x8var_mmx(a + 8 * a_stride, a_stride,
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b + 8 * b_stride, b_stride, &sse2, &sum2);
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vpx_get8x8var_mmx(a + 8 * a_stride + 8, a_stride,
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b + 8 * b_stride + 8, b_stride, &sse3, &sum3);
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var = sse0 + sse1 + sse2 + sse3;
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avg = sum0 + sum1 + sum2 + sum3;
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*sse = var;
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return (var - (((unsigned int)avg * avg) >> 8));
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}
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unsigned int vpx_variance16x8_mmx(const unsigned char *a, int a_stride,
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const unsigned char *b, int b_stride,
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unsigned int *sse) {
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unsigned int sse0, sse1, var;
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int sum0, sum1, avg;
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vpx_get8x8var_mmx(a, a_stride, b, b_stride, &sse0, &sum0);
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vpx_get8x8var_mmx(a + 8, a_stride, b + 8, b_stride, &sse1, &sum1);
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var = sse0 + sse1;
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avg = sum0 + sum1;
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*sse = var;
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return (var - (((unsigned int)avg * avg) >> 7));
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}
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unsigned int vpx_variance8x16_mmx(const unsigned char *a, int a_stride,
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const unsigned char *b, int b_stride,
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unsigned int *sse) {
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unsigned int sse0, sse1, var;
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int sum0, sum1, avg;
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vpx_get8x8var_mmx(a, a_stride, b, b_stride, &sse0, &sum0);
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vpx_get8x8var_mmx(a + 8 * a_stride, a_stride,
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b + 8 * b_stride, b_stride, &sse1, &sum1);
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var = sse0 + sse1;
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avg = sum0 + sum1;
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*sse = var;
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return (var - (((unsigned int)avg * avg) >> 7));
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}
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