4db2076594
Instead of doing 8-bit data unpack and 16-bit subtraction, use psubb to do 16 8-bit subtractions and pcmpgtb to preserve the sign information. This does not bring noticable gain since these functions are not called frequently. Change-Id: I90a0dfaa3db9d422e4ada324076596ffb178548e
86 lines
2.2 KiB
C
86 lines
2.2 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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#ifndef ENCODEMB_X86_H
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#define ENCODEMB_X86_H
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/* Note:
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*
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* This platform is commonly built for runtime CPU detection. If you modify
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* any of the function mappings present in this file, be sure to also update
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* them in the function pointer initialization code
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*/
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#if HAVE_MMX
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extern prototype_berr(vp8_block_error_mmx);
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extern prototype_mberr(vp8_mbblock_error_mmx);
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extern prototype_mbuverr(vp8_mbuverror_mmx);
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extern prototype_subb(vp8_subtract_b_mmx);
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extern prototype_submby(vp8_subtract_mby_mmx);
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extern prototype_submbuv(vp8_subtract_mbuv_mmx);
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#if !CONFIG_RUNTIME_CPU_DETECT
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#undef vp8_encodemb_berr
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#define vp8_encodemb_berr vp8_block_error_mmx
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#undef vp8_encodemb_mberr
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#define vp8_encodemb_mberr vp8_mbblock_error_mmx
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#undef vp8_encodemb_mbuverr
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#define vp8_encodemb_mbuverr vp8_mbuverror_mmx
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#undef vp8_encodemb_subb
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#define vp8_encodemb_subb vp8_subtract_b_mmx
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#undef vp8_encodemb_submby
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#define vp8_encodemb_submby vp8_subtract_mby_mmx
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#undef vp8_encodemb_submbuv
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#define vp8_encodemb_submbuv vp8_subtract_mbuv_mmx
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#endif
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#endif
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#if HAVE_SSE2
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extern prototype_berr(vp8_block_error_xmm);
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extern prototype_mberr(vp8_mbblock_error_xmm);
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extern prototype_mbuverr(vp8_mbuverror_xmm);
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extern prototype_subb(vp8_subtract_b_sse2);
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extern prototype_submby(vp8_subtract_mby_sse2);
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extern prototype_submbuv(vp8_subtract_mbuv_sse2);
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#if !CONFIG_RUNTIME_CPU_DETECT
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#undef vp8_encodemb_berr
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#define vp8_encodemb_berr vp8_block_error_xmm
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#undef vp8_encodemb_mberr
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#define vp8_encodemb_mberr vp8_mbblock_error_xmm
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#undef vp8_encodemb_mbuverr
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#define vp8_encodemb_mbuverr vp8_mbuverror_xmm
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#undef vp8_encodemb_subb
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#define vp8_encodemb_subb vp8_subtract_b_sse2
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#undef vp8_encodemb_submby
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#define vp8_encodemb_submby vp8_subtract_mby_sse2
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#undef vp8_encodemb_submbuv
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#define vp8_encodemb_submbuv vp8_subtract_mbuv_sse2
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#endif
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#endif
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#endif
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