diff options
Diffstat (limited to 'media/libvpx/libvpx/vpx_dsp/arm/idct_neon.asm')
| -rw-r--r-- | media/libvpx/libvpx/vpx_dsp/arm/idct_neon.asm | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/media/libvpx/libvpx/vpx_dsp/arm/idct_neon.asm b/media/libvpx/libvpx/vpx_dsp/arm/idct_neon.asm new file mode 100644 index 0000000000..5dd9bdc788 --- /dev/null +++ b/media/libvpx/libvpx/vpx_dsp/arm/idct_neon.asm @@ -0,0 +1,46 @@ +; +; Copyright (c) 2016 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. +; + + INCLUDE ./vpx_config.asm + + ; Helper functions used to load tran_low_t into int16, narrowing if + ; necessary. + + ; $dst0..3 are d registers with the pairs assumed to be contiguous in + ; non-high-bitdepth builds. q0-q3 are used as temporaries in high-bitdepth. + MACRO + LOAD_TRAN_LOW_TO_S16 $dst0, $dst1, $dst2, $dst3, $src + IF CONFIG_VP9_HIGHBITDEPTH + vld1.s32 {q0,q1}, [$src]! + vld1.s32 {q2,q3}, [$src]! + vmovn.i32 $dst0, q0 + vmovn.i32 $dst1, q1 + vmovn.i32 $dst2, q2 + vmovn.i32 $dst3, q3 + ELSE + vld1.s16 {$dst0-$dst1,$dst2-$dst3}, [$src]! + ENDIF + MEND + + ; $dst0..3 are d registers. q0-q3 are used as temporaries in high-bitdepth. + MACRO + LOAD_TRAN_LOW_TO_S16X2 $dst0, $dst1, $dst2, $dst3, $src + IF CONFIG_VP9_HIGHBITDEPTH + vld2.s32 {q0,q1}, [$src]! + vld2.s32 {q2,q3}, [$src]! + vmovn.i32 $dst0, q0 + vmovn.i32 $dst1, q2 + vmovn.i32 $dst2, q1 + vmovn.i32 $dst3, q3 + ELSE + vld2.s16 {$dst0,$dst1,$dst2,$dst3}, [$src]! + ENDIF + MEND + END |