47 lines
1.5 KiB
NASM
47 lines
1.5 KiB
NASM
;
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; Copyright (c) 2016 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_config.asm
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; Helper functions used to load tran_low_t into int16, narrowing if
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; necessary.
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; $dst0..3 are d registers with the pairs assumed to be contiguous in
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; non-high-bitdepth builds. q0-q3 are used as temporaries in high-bitdepth.
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MACRO
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LOAD_TRAN_LOW_TO_S16 $dst0, $dst1, $dst2, $dst3, $src
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IF CONFIG_VP9_HIGHBITDEPTH
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vld1.s32 {q0,q1}, [$src]!
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vld1.s32 {q2,q3}, [$src]!
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vmovn.i32 $dst0, q0
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vmovn.i32 $dst1, q1
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vmovn.i32 $dst2, q2
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vmovn.i32 $dst3, q3
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ELSE
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vld1.s16 {$dst0-$dst1,$dst2-$dst3}, [$src]!
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ENDIF
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MEND
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; $dst0..3 are d registers. q0-q3 are used as temporaries in high-bitdepth.
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MACRO
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LOAD_TRAN_LOW_TO_S16X2 $dst0, $dst1, $dst2, $dst3, $src
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IF CONFIG_VP9_HIGHBITDEPTH
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vld2.s32 {q0,q1}, [$src]!
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vld2.s32 {q2,q3}, [$src]!
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vmovn.i32 $dst0, q0
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vmovn.i32 $dst1, q2
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vmovn.i32 $dst2, q1
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vmovn.i32 $dst3, q3
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ELSE
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vld2.s16 {$dst0,$dst1,$dst2,$dst3}, [$src]!
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ENDIF
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MEND
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END
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