[FFmpeg-cvslog] x86: simple_idct10_template: use const
Christophe Gisquet
git at videolan.org
Tue Oct 13 22:55:32 CEST 2015
ffmpeg | branch: master | Christophe Gisquet <christophe.gisquet at gmail.com> | Tue Oct 13 21:21:39 2015 +0200| [74c414202f0eda01571dc362a4b4cb342dc1fb64] | committer: Michael Niedermayer
x86: simple_idct10_template: use const
This avoid going through constants.c while still sharing them
with proresdsp.asm
Reviewed-by: "Ronald S. Bultje" <rsbultje at gmail.com>
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=74c414202f0eda01571dc362a4b4cb342dc1fb64
---
libavcodec/x86/constants.c | 28 ----------------------------
libavcodec/x86/constants.h | 16 ----------------
libavcodec/x86/proresdsp.asm | 13 +++++++++++++
libavcodec/x86/simple_idct10.asm | 26 ++++++++++++++++++++++++++
libavcodec/x86/simple_idct10_template.asm | 13 -------------
5 files changed, 39 insertions(+), 57 deletions(-)
diff --git a/libavcodec/x86/constants.c b/libavcodec/x86/constants.c
index 7e3d490..0098e20 100644
--- a/libavcodec/x86/constants.c
+++ b/libavcodec/x86/constants.c
@@ -89,31 +89,3 @@ DECLARE_ALIGNED(32, const ymm_reg, ff_pd_8192) = { 0x0000200000002000ULL, 0x000
0x0000200000002000ULL, 0x0000200000002000ULL };
DECLARE_ALIGNED(32, const ymm_reg, ff_pd_65535)= { 0x0000ffff0000ffffULL, 0x0000ffff0000ffffULL,
0x0000ffff0000ffffULL, 0x0000ffff0000ffffULL };
-
-/* simple idct 10 */
-#define W1sh2 22725 // W1 = 90901 = 22725<<2 + 1
-#define W2sh2 21407 // W2 = 85627 = 21407<<2 - 1
-#define W3sh2 19265 // W3 = 77062 = 19265<<2 + 2
-#define W4sh2 16384 // W4 = 65535 = 16384<<2 - 1
-#define W5sh2 12873 // W5 = 51491 = 12873<<2 - 1
-#define W6sh2 8867 // W6 = 35468 = 8867<<2
-#define W7sh2 4520 // W7 = 18081 = 4520<<2 + 1
-
-#define TIMES4(a, b) \
- (((b)&0xFFFFLL)<<48)+(((a)&0xFFFFLL)<<32)+(((b)&0xFFFFLL)<<16)+((a)&0xFFFFLL), \
- (((b)&0xFFFFLL)<<48)+(((a)&0xFFFFLL)<<32)+(((b)&0xFFFFLL)<<16)+((a)&0xFFFFLL)
-
-#if ARCH_X86_64
-DECLARE_ALIGNED(16, const xmm_reg, ff_w4_plus_w2) = { TIMES4(W4sh2, W2sh2) };
-DECLARE_ALIGNED(16, const xmm_reg, ff_w4_min_w2) = { TIMES4(W4sh2, -W2sh2) };
-DECLARE_ALIGNED(16, const xmm_reg, ff_w4_plus_w6) = { TIMES4(W4sh2, +W6sh2) };
-DECLARE_ALIGNED(16, const xmm_reg, ff_w4_min_w6) = { TIMES4(W4sh2, -W6sh2) };
-DECLARE_ALIGNED(16, const xmm_reg, ff_w1_plus_w3) = { TIMES4(W1sh2, +W3sh2) };
-DECLARE_ALIGNED(16, const xmm_reg, ff_w3_min_w1) = { TIMES4(W3sh2, -W1sh2) };
-DECLARE_ALIGNED(16, const xmm_reg, ff_w7_plus_w3) = { TIMES4(W7sh2, +W3sh2) };
-DECLARE_ALIGNED(16, const xmm_reg, ff_w3_min_w7) = { TIMES4(W3sh2, -W7sh2) };
-DECLARE_ALIGNED(16, const xmm_reg, ff_w1_plus_w5) = { TIMES4(W1sh2, +W5sh2) };
-DECLARE_ALIGNED(16, const xmm_reg, ff_w5_min_w1) = { TIMES4(W5sh2, -W1sh2) };
-DECLARE_ALIGNED(16, const xmm_reg, ff_w5_plus_w7) = { TIMES4(W5sh2, +W7sh2) };
-DECLARE_ALIGNED(16, const xmm_reg, ff_w7_min_w5) = { TIMES4(W7sh2, -W5sh2) };
-#endif
diff --git a/libavcodec/x86/constants.h b/libavcodec/x86/constants.h
index 496933f..f989755 100644
--- a/libavcodec/x86/constants.h
+++ b/libavcodec/x86/constants.h
@@ -68,20 +68,4 @@ extern const ymm_reg ff_pd_32;
extern const ymm_reg ff_pd_8192;
extern const ymm_reg ff_pd_65535;
-# if ARCH_X86_64
-/* simple_idct10, used by prores and dnxhd */
-extern const xmm_reg ff_w4_plus_w2;
-extern const xmm_reg ff_w4_min_w2;
-extern const xmm_reg ff_w4_plus_w6;
-extern const xmm_reg ff_w4_min_w6;
-extern const xmm_reg ff_w1_plus_w3;
-extern const xmm_reg ff_w3_min_w1;
-extern const xmm_reg ff_w7_plus_w3;
-extern const xmm_reg ff_w3_min_w7;
-extern const xmm_reg ff_w1_plus_w5;
-extern const xmm_reg ff_w5_min_w1;
-extern const xmm_reg ff_w5_plus_w7;
-extern const xmm_reg ff_w7_min_w5;
-# endif
-
#endif /* AVCODEC_X86_CONSTANTS_H */
diff --git a/libavcodec/x86/proresdsp.asm b/libavcodec/x86/proresdsp.asm
index 4633844..edfd2f7 100644
--- a/libavcodec/x86/proresdsp.asm
+++ b/libavcodec/x86/proresdsp.asm
@@ -32,6 +32,19 @@ pw_88: times 8 dw 0x2008
cextern pw_1
cextern pw_4
cextern pw_1019
+; Below are defined in simple_idct10.asm built from selecting idctdsp
+cextern w4_plus_w2
+cextern w4_min_w2
+cextern w4_plus_w6
+cextern w4_min_w6
+cextern w1_plus_w3
+cextern w3_min_w1
+cextern w7_plus_w3
+cextern w3_min_w7
+cextern w1_plus_w5
+cextern w5_min_w1
+cextern w5_plus_w7
+cextern w7_min_w5
%include "libavcodec/x86/simple_idct10_template.asm"
diff --git a/libavcodec/x86/simple_idct10.asm b/libavcodec/x86/simple_idct10.asm
index ec388f9..cd83d61 100644
--- a/libavcodec/x86/simple_idct10.asm
+++ b/libavcodec/x86/simple_idct10.asm
@@ -37,6 +37,32 @@ pd_round_12: times 4 dd 1<<(12-1)
pd_round_15: times 4 dd 1<<(15-1)
pd_round_19: times 4 dd 1<<(19-1)
+%macro CONST_DEC 3
+const %1
+times 4 dw %2, %3
+%endmacro
+
+%define W1sh2 22725 ; W1 = 90901 = 22725<<2 + 1
+%define W2sh2 21407 ; W2 = 85627 = 21407<<2 - 1
+%define W3sh2 19265 ; W3 = 77062 = 19265<<2 + 2
+%define W4sh2 16384 ; W4 = 65535 = 16384<<2 - 1
+%define W5sh2 12873 ; W5 = 51491 = 12873<<2 - 1
+%define W6sh2 8867 ; W6 = 35468 = 8867<<2
+%define W7sh2 4520 ; W7 = 18081 = 4520<<2 + 1
+
+CONST_DEC w4_plus_w2, W4sh2, +W2sh2
+CONST_DEC w4_min_w2, W4sh2, -W2sh2
+CONST_DEC w4_plus_w6, W4sh2, +W6sh2
+CONST_DEC w4_min_w6, W4sh2, -W6sh2
+CONST_DEC w1_plus_w3, W1sh2, +W3sh2
+CONST_DEC w3_min_w1, W3sh2, -W1sh2
+CONST_DEC w7_plus_w3, W7sh2, +W3sh2
+CONST_DEC w3_min_w7, W3sh2, -W7sh2
+CONST_DEC w1_plus_w5, W1sh2, +W5sh2
+CONST_DEC w5_min_w1, W5sh2, -W1sh2
+CONST_DEC w5_plus_w7, W5sh2, +W7sh2
+CONST_DEC w7_min_w5, W7sh2, -W5sh2
+
%include "libavcodec/x86/simple_idct10_template.asm"
section .text align=16
diff --git a/libavcodec/x86/simple_idct10_template.asm b/libavcodec/x86/simple_idct10_template.asm
index 7300c8a..e5deb0f 100644
--- a/libavcodec/x86/simple_idct10_template.asm
+++ b/libavcodec/x86/simple_idct10_template.asm
@@ -26,19 +26,6 @@
%if ARCH_X86_64
-cextern w4_plus_w2
-cextern w4_min_w2
-cextern w4_plus_w6
-cextern w4_min_w6
-cextern w1_plus_w3
-cextern w3_min_w1
-cextern w7_plus_w3
-cextern w3_min_w7
-cextern w1_plus_w5
-cextern w5_min_w1
-cextern w5_plus_w7
-cextern w7_min_w5
-
; interleave data while maintaining source
; %1=type, %2=dstlo, %3=dsthi, %4=src, %5=interleave
%macro SBUTTERFLY3 5
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