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d39c229e54
Some debuggers/profilers use this metadata to determine which function a given instruction is in; without it they get can confused by local labels (if you haven't stripped those). On the other hand, some tools are still confused even with this metadata. e.g. this fixes `gdb`, but not `perf`. Currently only implemented for ELF.
67 lines
1.8 KiB
NASM
67 lines
1.8 KiB
NASM
;******************************************************************************
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;* x86-SIMD-optimized IDCT for prores
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;* this is identical to "simple" IDCT written by Michael Niedermayer
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;* except for the clip range
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;*
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;* Copyright (c) 2011 Ronald S. Bultje <rsbultje@gmail.com>
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;*
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;* This file is part of FFmpeg.
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;*
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;* FFmpeg is free software; you can redistribute it and/or
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;* modify it under the terms of the GNU Lesser General Public
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;* License as published by the Free Software Foundation; either
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;* version 2.1 of the License, or (at your option) any later version.
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;*
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;* FFmpeg is distributed in the hope that it will be useful,
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;* but WITHOUT ANY WARRANTY; without even the implied warranty of
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;* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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;* Lesser General Public License for more details.
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;*
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;* You should have received a copy of the GNU Lesser General Public
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;* License along with FFmpeg; if not, write to the Free Software
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;* 51, Inc., Foundation Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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;******************************************************************************
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%include "libavutil/x86/x86util.asm"
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%if ARCH_X86_64
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SECTION_RODATA
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pw_88: times 8 dw 0x2008
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cextern pw_1
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cextern pw_4
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cextern pw_1019
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; Below are defined in simple_idct10.asm built from selecting idctdsp
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cextern w4_plus_w2
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cextern w4_min_w2
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cextern w4_plus_w6
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cextern w4_min_w6
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cextern w1_plus_w3
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cextern w3_min_w1
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cextern w7_plus_w3
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cextern w3_min_w7
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cextern w1_plus_w5
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cextern w5_min_w1
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cextern w5_plus_w7
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cextern w7_min_w5
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%include "libavcodec/x86/simple_idct10_template.asm"
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SECTION .text
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%macro idct_fn 0
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cglobal prores_idct_put_10, 4, 4, 15
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IDCT_FN pw_1, 15, pw_88, 18, pw_4, pw_1019, r3
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RET
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%endmacro
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INIT_XMM sse2
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idct_fn
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%if HAVE_AVX_EXTERNAL
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INIT_XMM avx
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idct_fn
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%endif
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%endif
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