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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /media/ffvpx/libavutil/x86/asm.h | |
parent | Initial commit. (diff) | |
download | firefox-esr-upstream.tar.xz firefox-esr-upstream.zip |
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | media/ffvpx/libavutil/x86/asm.h | 154 |
1 files changed, 154 insertions, 0 deletions
diff --git a/media/ffvpx/libavutil/x86/asm.h b/media/ffvpx/libavutil/x86/asm.h new file mode 100644 index 0000000000..9bff42d628 --- /dev/null +++ b/media/ffvpx/libavutil/x86/asm.h @@ -0,0 +1,154 @@ +/* + * copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at> + * + * This file is part of FFmpeg. + * + * FFmpeg 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 2.1 of the License, or (at your option) any later version. + * + * FFmpeg 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 FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef AVUTIL_X86_ASM_H +#define AVUTIL_X86_ASM_H + +#include <stdint.h> +#include "config.h" + +typedef struct xmm_reg { uint64_t a, b; } xmm_reg; +typedef struct ymm_reg { uint64_t a, b, c, d; } ymm_reg; + +#if ARCH_X86_64 +# define FF_OPSIZE "q" +# define FF_REG_a "rax" +# define FF_REG_b "rbx" +# define FF_REG_c "rcx" +# define FF_REG_d "rdx" +# define FF_REG_D "rdi" +# define FF_REG_S "rsi" +# define FF_PTR_SIZE "8" +typedef int64_t x86_reg; + +/* FF_REG_SP is defined in Solaris sys headers, so use FF_REG_sp */ +# define FF_REG_sp "rsp" +# define FF_REG_BP "rbp" +# define FF_REGBP rbp +# define FF_REGa rax +# define FF_REGb rbx +# define FF_REGc rcx +# define FF_REGd rdx +# define FF_REGSP rsp + +#elif ARCH_X86_32 + +# define FF_OPSIZE "l" +# define FF_REG_a "eax" +# define FF_REG_b "ebx" +# define FF_REG_c "ecx" +# define FF_REG_d "edx" +# define FF_REG_D "edi" +# define FF_REG_S "esi" +# define FF_PTR_SIZE "4" +typedef int32_t x86_reg; + +# define FF_REG_sp "esp" +# define FF_REG_BP "ebp" +# define FF_REGBP ebp +# define FF_REGa eax +# define FF_REGb ebx +# define FF_REGc ecx +# define FF_REGd edx +# define FF_REGSP esp +#else +typedef int x86_reg; +#endif + +#define HAVE_7REGS (ARCH_X86_64 || (HAVE_EBX_AVAILABLE && HAVE_EBP_AVAILABLE)) +#define HAVE_6REGS (ARCH_X86_64 || (HAVE_EBX_AVAILABLE || HAVE_EBP_AVAILABLE)) + +#if ARCH_X86_64 && defined(PIC) +# define BROKEN_RELOCATIONS 1 +#endif + +/* + * If gcc is not set to support sse (-msse) it will not accept xmm registers + * in the clobber list for inline asm. XMM_CLOBBERS takes a list of xmm + * registers to be marked as clobbered and evaluates to nothing if they are + * not supported, or to the list itself if they are supported. Since a clobber + * list may not be empty, XMM_CLOBBERS_ONLY should be used if the xmm + * registers are the only in the clobber list. + * For example a list with "eax" and "xmm0" as clobbers should become: + * : XMM_CLOBBERS("xmm0",) "eax" + * and a list with only "xmm0" should become: + * XMM_CLOBBERS_ONLY("xmm0") + */ +#if HAVE_XMM_CLOBBERS +# define XMM_CLOBBERS(...) __VA_ARGS__ +# define XMM_CLOBBERS_ONLY(...) : __VA_ARGS__ +#else +# define XMM_CLOBBERS(...) +# define XMM_CLOBBERS_ONLY(...) +#endif + +/* Use to export labels from asm. */ +#define LABEL_MANGLE(a) EXTERN_PREFIX #a + +// Use rip-relative addressing if compiling PIC code on x86-64. +#if ARCH_X86_64 && defined(PIC) +# define LOCAL_MANGLE(a) #a "(%%rip)" +#else +# define LOCAL_MANGLE(a) #a +#endif + +#if HAVE_INLINE_ASM_DIRECT_SYMBOL_REFS +# define MANGLE(a) EXTERN_PREFIX LOCAL_MANGLE(a) +# define NAMED_CONSTRAINTS_ADD(...) +# define NAMED_CONSTRAINTS(...) +# define NAMED_CONSTRAINTS_ARRAY_ADD(...) +# define NAMED_CONSTRAINTS_ARRAY(...) +#else + /* When direct symbol references are used in code passed to a compiler that does not support them + * then these references need to be converted to named asm constraints instead. + * Instead of returning a direct symbol MANGLE now returns a named constraint for that specific symbol. + * In order for this to work there must also be a corresponding entry in the asm-interface. To add this + * entry use the macro NAMED_CONSTRAINTS() and pass in a list of each symbol reference used in the + * corresponding block of code. (e.g. NAMED_CONSTRAINTS(var1,var2,var3) where var1 is the first symbol etc. ). + * If there are already existing constraints then use NAMED_CONSTRAINTS_ADD to add to the existing constraint list. + */ +# define MANGLE(a) "%["#a"]" + // Intel/MSVC does not correctly expand va-args so we need a rather ugly hack in order to get it to work +# define FE_0(P,X) P(X) +# define FE_1(P,X,X1) P(X), FE_0(P,X1) +# define FE_2(P,X,X1,X2) P(X), FE_1(P,X1,X2) +# define FE_3(P,X,X1,X2,X3) P(X), FE_2(P,X1,X2,X3) +# define FE_4(P,X,X1,X2,X3,X4) P(X), FE_3(P,X1,X2,X3,X4) +# define FE_5(P,X,X1,X2,X3,X4,X5) P(X), FE_4(P,X1,X2,X3,X4,X5) +# define FE_6(P,X,X1,X2,X3,X4,X5,X6) P(X), FE_5(P,X1,X2,X3,X4,X5,X6) +# define FE_7(P,X,X1,X2,X3,X4,X5,X6,X7) P(X), FE_6(P,X1,X2,X3,X4,X5,X6,X7) +# define FE_8(P,X,X1,X2,X3,X4,X5,X6,X7,X8) P(X), FE_7(P,X1,X2,X3,X4,X5,X6,X7,X8) +# define FE_9(P,X,X1,X2,X3,X4,X5,X6,X7,X8,X9) P(X), FE_8(P,X1,X2,X3,X4,X5,X6,X7,X8,X9) +# define GET_FE_IMPL(_0,_1,_2,_3,_4,_5,_6,_7,_8,_9,NAME,...) NAME +# define GET_FE(A) GET_FE_IMPL A +# define GET_FE_GLUE(x, y) x y +# define FOR_EACH_VA(P,...) GET_FE_GLUE(GET_FE((__VA_ARGS__,FE_9,FE_8,FE_7,FE_6,FE_5,FE_4,FE_3,FE_2,FE_1,FE_0)), (P,__VA_ARGS__)) +# define NAME_CONSTRAINT(x) [x] "m"(x) + // Parameters are a list of each symbol reference required +# define NAMED_CONSTRAINTS_ADD(...) , FOR_EACH_VA(NAME_CONSTRAINT,__VA_ARGS__) + // Same but without comma for when there are no previously defined constraints +# define NAMED_CONSTRAINTS(...) FOR_EACH_VA(NAME_CONSTRAINT,__VA_ARGS__) + // Same as above NAMED_CONSTRAINTS except used for passing arrays/pointers instead of normal variables +# define NAME_CONSTRAINT_ARRAY(x) [x] "m"(*x) +# define NAMED_CONSTRAINTS_ARRAY_ADD(...) , FOR_EACH_VA(NAME_CONSTRAINT_ARRAY,__VA_ARGS__) +# define NAMED_CONSTRAINTS_ARRAY(...) FOR_EACH_VA(NAME_CONSTRAINT_ARRAY,__VA_ARGS__) +#endif + +#endif /* AVUTIL_X86_ASM_H */ |