7186a2dd86
It in essence refactors the code for both the interpolation filtering and the convolution. This change includes the moving of all the files as well as the changing of the code from vp9_ prefix to vpx_ prefix accordingly, for underneath architectures: (1) x86; (2) arm/neon; and (3) mips/msa. The work on mips/drsp2 will be done in a separate change list. Change-Id: Ic3ce7fb7f81210db7628b373c73553db68793c46
70 lines
1.9 KiB
C
70 lines
1.9 KiB
C
/*
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* Copyright (c) 2015 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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#ifndef VPX_DSP_COMMON_H_
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#define VPX_DSP_COMMON_H_
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#include "./vpx_config.h"
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#include "vpx/vpx_integer.h"
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#include "vpx_ports/mem.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define MIN(x, y) (((x) < (y)) ? (x) : (y))
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#define MAX(x, y) (((x) > (y)) ? (x) : (y))
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#if CONFIG_VP9_HIGHBITDEPTH
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// Note:
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// tran_low_t is the datatype used for final transform coefficients.
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// tran_high_t is the datatype used for intermediate transform stages.
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typedef int64_t tran_high_t;
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typedef int32_t tran_low_t;
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#else
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// Note:
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// tran_low_t is the datatype used for final transform coefficients.
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// tran_high_t is the datatype used for intermediate transform stages.
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typedef int32_t tran_high_t;
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typedef int16_t tran_low_t;
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#endif // CONFIG_VP9_HIGHBITDEPTH
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static INLINE uint8_t clip_pixel(int val) {
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return (val > 255) ? 255 : (val < 0) ? 0 : val;
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}
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static INLINE int clamp(int value, int low, int high) {
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return value < low ? low : (value > high ? high : value);
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}
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static INLINE double fclamp(double value, double low, double high) {
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return value < low ? low : (value > high ? high : value);
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}
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#if CONFIG_VP9_HIGHBITDEPTH
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static INLINE uint16_t clip_pixel_highbd(int val, int bd) {
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switch (bd) {
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case 8:
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default:
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return (uint16_t)clamp(val, 0, 255);
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case 10:
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return (uint16_t)clamp(val, 0, 1023);
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case 12:
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return (uint16_t)clamp(val, 0, 4095);
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}
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}
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#endif // CONFIG_VP9_HIGHBITDEPTH
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#ifdef __cplusplus
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} // extern "C"
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#endif
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#endif // VPX_DSP_COMMON_H_
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