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/*
* Copyright (C) 2020 Linux Studio Plugins Project <https://lsp-plug.in/>
* (C) 2020 Vladimir Sadovnikov <sadko4u@gmail.com>
*
* This file is part of lsp-dsp-lib
* Created on: 31 мар. 2020 г.
*
* lsp-dsp-lib is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* any later version.
*
* lsp-dsp-lib is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with lsp-dsp-lib. If not, see <https://www.gnu.org/licenses/>.
*/
#ifndef PRIVATE_DSP_ARCH_X86_SSE_FLOAT_H_
#define PRIVATE_DSP_ARCH_X86_SSE_FLOAT_H_
#ifndef PRIVATE_DSP_ARCH_X86_SSE_IMPL
#error "This header should not be included directly"
#endif /* PRIVATE_DSP_ARCH_X86_SSE_IMPL */
namespace lsp
{
namespace sse
{
#define LIMIT_BODY(DST, SRC) \
__ASM_EMIT("xor %[off], %[off]") \
__ASM_EMIT("movss %[min], %%xmm6") \
__ASM_EMIT("movss %[max], %%xmm7") \
__ASM_EMIT("shufps $0x00, %%xmm6, %%xmm6") /* ymm6 = min */ \
__ASM_EMIT("shufps $0x00, %%xmm7, %%xmm7") /* ymm7 = max */ \
/* x8 blocks */ \
__ASM_EMIT("sub $8, %[count]") \
__ASM_EMIT("jb 2f") \
__ASM_EMIT("1:") \
__ASM_EMIT("movups 0x00(%[" SRC "], %[off]), %%xmm0") /* xmm0 = s0 */ \
__ASM_EMIT("movups 0x10(%[" SRC "], %[off]), %%xmm1") \
__ASM_EMIT("movaps %%xmm6, %%xmm2") /* xmm6 = min */ \
__ASM_EMIT("movaps %%xmm6, %%xmm3") \
__ASM_EMIT("cmpps $2, %%xmm0, %%xmm2") /* xmm2 = c = [ (s >= min) & !isnan(s) ] */ \
__ASM_EMIT("cmpps $2, %%xmm1, %%xmm3") \
__ASM_EMIT("movaps %%xmm2, %%xmm4") /* xmm4 = c */ \
__ASM_EMIT("movaps %%xmm3, %%xmm5") \
__ASM_EMIT("andps %%xmm2, %%xmm0") /* xmm0 = s & c */ \
__ASM_EMIT("andps %%xmm3, %%xmm1") \
__ASM_EMIT("andnps %%xmm6, %%xmm2") /* xmm2 = min & (!c) */ \
__ASM_EMIT("andnps %%xmm6, %%xmm3") \
__ASM_EMIT("orps %%xmm2, %%xmm0") /* xmm0 = (s & c) | min & (!c) */ \
__ASM_EMIT("orps %%xmm3, %%xmm1") \
__ASM_EMIT("movaps %%xmm7, %%xmm2") /* xmm6 = min */ \
__ASM_EMIT("movaps %%xmm7, %%xmm3") \
__ASM_EMIT("cmpps $5, %%xmm0, %%xmm2") /* xmm2 = c = [ (s <= max) & !isnan(s) ] */ \
__ASM_EMIT("cmpps $5, %%xmm1, %%xmm3") \
__ASM_EMIT("movaps %%xmm2, %%xmm4") /* xmm4 = c */ \
__ASM_EMIT("movaps %%xmm3, %%xmm5") \
__ASM_EMIT("andps %%xmm2, %%xmm0") /* xmm0 = s & c */ \
__ASM_EMIT("andps %%xmm3, %%xmm1") \
__ASM_EMIT("andnps %%xmm7, %%xmm2") /* xmm2 = min & (!c) */ \
__ASM_EMIT("andnps %%xmm7, %%xmm3") \
__ASM_EMIT("orps %%xmm2, %%xmm0") /* xmm0 = (s & c) | min & (!c) */ \
__ASM_EMIT("orps %%xmm3, %%xmm1") \
__ASM_EMIT("movups %%xmm0, 0x00(%[" DST "], %[off])") \
__ASM_EMIT("movups %%xmm1, 0x10(%[" DST "], %[off])") \
__ASM_EMIT("add $0x20, %[off]") \
__ASM_EMIT("sub $8, %[count]") \
__ASM_EMIT("jae 1b") \
__ASM_EMIT("2:") \
/* x4 block */ \
__ASM_EMIT("add $4, %[count]") \
__ASM_EMIT("jl 4f") \
__ASM_EMIT("movups 0x00(%[" SRC "], %[off]), %%xmm0") /* xmm0 = s0 */ \
__ASM_EMIT("movaps %%xmm6, %%xmm2") /* xmm6 = min */ \
__ASM_EMIT("cmpps $2, %%xmm0, %%xmm2") /* xmm2 = c = [ (s >= min) & !isnan(s) ] */ \
__ASM_EMIT("movaps %%xmm2, %%xmm4") /* xmm4 = c */ \
__ASM_EMIT("andps %%xmm2, %%xmm0") /* xmm0 = s & c */ \
__ASM_EMIT("andnps %%xmm6, %%xmm2") /* xmm2 = min & (!c) */ \
__ASM_EMIT("orps %%xmm2, %%xmm0") /* xmm0 = (s & c) | min & (!c) */ \
__ASM_EMIT("movaps %%xmm7, %%xmm2") /* xmm6 = min */ \
__ASM_EMIT("cmpps $5, %%xmm0, %%xmm2") /* xmm2 = c = [ (s <= max) & !isnan(s) ] */ \
__ASM_EMIT("movaps %%xmm2, %%xmm4") /* xmm4 = c */ \
__ASM_EMIT("andps %%xmm2, %%xmm0") /* xmm0 = s & c */ \
__ASM_EMIT("andnps %%xmm7, %%xmm2") /* xmm2 = min & (!c) */ \
__ASM_EMIT("orps %%xmm2, %%xmm0") /* xmm0 = (s & c) | min & (!c) */ \
__ASM_EMIT("movups %%xmm0, 0x00(%[" DST "], %[off])") \
__ASM_EMIT("sub $4, %[count]") \
__ASM_EMIT("add $0x10, %[off]") \
__ASM_EMIT("4:") \
/* x1 blocks */ \
__ASM_EMIT("add $3, %[count]") \
__ASM_EMIT("jl 6f") \
__ASM_EMIT("5:") \
__ASM_EMIT("movss 0x00(%[" SRC "], %[off]), %%xmm0") /* xmm0 = s0 */ \
__ASM_EMIT("movaps %%xmm6, %%xmm2") /* xmm6 = min */ \
__ASM_EMIT("cmpps $2, %%xmm0, %%xmm2") /* xmm2 = c = [ (s >= min) & !isnan(s) ] */ \
__ASM_EMIT("movaps %%xmm2, %%xmm4") /* xmm4 = c */ \
__ASM_EMIT("andps %%xmm2, %%xmm0") /* xmm0 = s & c */ \
__ASM_EMIT("andnps %%xmm6, %%xmm2") /* xmm2 = min & (!c) */ \
__ASM_EMIT("orps %%xmm2, %%xmm0") /* xmm0 = (s & c) | min & (!c) */ \
__ASM_EMIT("movaps %%xmm7, %%xmm2") /* xmm6 = min */ \
__ASM_EMIT("cmpps $5, %%xmm0, %%xmm2") /* xmm2 = c = [ (s <= max) & !isnan(s) ] */ \
__ASM_EMIT("movaps %%xmm2, %%xmm4") /* xmm4 = c */ \
__ASM_EMIT("andps %%xmm2, %%xmm0") /* xmm0 = s & c */ \
__ASM_EMIT("andnps %%xmm7, %%xmm2") /* xmm2 = min & (!c) */ \
__ASM_EMIT("orps %%xmm2, %%xmm0") /* xmm0 = (s & c) | min & (!c) */ \
__ASM_EMIT("movss %%xmm0, 0x00(%[" DST "], %[off])") \
__ASM_EMIT("add $0x04, %[off]") \
__ASM_EMIT("dec %[count]") \
__ASM_EMIT("jge 5b") \
__ASM_EMIT("6:")
void limit1(float *dst, float min, float max, size_t count)
{
IF_ARCH_X86(size_t off);
ARCH_X86_ASM(
LIMIT_BODY("dst", "dst")
: [count] "+r" (count), [off] "=&r" (off)
: [dst] "r" (dst),
[min] "m" (min), [max] "m" (max)
: "cc", "memory",
"%xmm0", "%xmm1", "%xmm2", "%xmm3",
"%xmm4", "%xmm5", "%xmm6", "%xmm7"
);
}
void limit2(float *dst, const float *src, float min, float max, size_t count)
{
IF_ARCH_X86(size_t off);
ARCH_X86_ASM(
LIMIT_BODY("dst", "src")
: [count] "+r" (count), [off] "=&r" (off)
: [dst] "r" (dst), [src] "r" (src),
[min] "m" (min), [max] "m" (max)
: "cc", "memory",
"%xmm0", "%xmm1", "%xmm2", "%xmm3",
"%xmm4", "%xmm5", "%xmm6", "%xmm7"
);
}
#undef LIMIT_BODY
}
}
#endif /* PRIVATE_DSP_ARCH_X86_SSE_FLOAT_H_ */
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