405b94c661
Change-Id: I3b4b043c1402b4100653ace4869847e030861b18 Signed-off-by: Rafael de Lucena Valle <rafaeldelucena@gmail.com>
48 lines
1.5 KiB
C
48 lines
1.5 KiB
C
/*
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* Copyright (c) 2017 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_PPC_BITDEPTH_CONVERSION_VSX_H_
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#define VPX_DSP_PPC_BITDEPTH_CONVERSION_VSX_H_
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#include "./vpx_config.h"
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#include "vpx/vpx_integer.h"
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#include "vpx_dsp/vpx_dsp_common.h"
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#include "vpx_dsp/ppc/types_vsx.h"
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// Load 8 16 bit values. If the source is 32 bits then pack down with
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// saturation.
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static INLINE int16x8_t load_tran_low(int32_t c, const tran_low_t *s) {
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#if CONFIG_VP9_HIGHBITDEPTH
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int32x4_t u = vec_vsx_ld(c, s);
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int32x4_t v = vec_vsx_ld(c, s + 4);
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return vec_packs(u, v);
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#else
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return vec_vsx_ld(c, s);
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#endif
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}
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// Store 8 16 bit values. If the destination is 32 bits then sign extend the
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// values by multiplying by 1.
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static INLINE void store_tran_low(int16x8_t v, int32_t c, tran_low_t *s) {
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#if CONFIG_VP9_HIGHBITDEPTH
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const int16x8_t one = vec_splat_s16(1);
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const int32x4_t even = vec_mule(v, one);
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const int32x4_t odd = vec_mulo(v, one);
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const int32x4_t high = vec_mergeh(even, odd);
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const int32x4_t low = vec_mergel(even, odd);
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vec_vsx_st(high, c, s);
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vec_vsx_st(low, c, s + 4);
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#else
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vec_vsx_st(v, c, s);
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#endif
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}
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#endif // VPX_DSP_PPC_BITDEPTH_CONVERSION_VSX_H_
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