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Diffstat (limited to 'src/libffmpeg/libavcodec/i386/fdct_mmx.c')
-rw-r--r--src/libffmpeg/libavcodec/i386/fdct_mmx.c192
1 files changed, 95 insertions, 97 deletions
diff --git a/src/libffmpeg/libavcodec/i386/fdct_mmx.c b/src/libffmpeg/libavcodec/i386/fdct_mmx.c
index 14d93370d..19f656afd 100644
--- a/src/libffmpeg/libavcodec/i386/fdct_mmx.c
+++ b/src/libffmpeg/libavcodec/i386/fdct_mmx.c
@@ -3,133 +3,131 @@
* The gcc porting is Copyright (c) 2001 Fabrice Bellard.
*
* from fdctam32.c - AP922 MMX(3D-Now) forward-DCT
- *
+ *
* Intel Application Note AP-922 - fast, precise implementation of DCT
* http://developer.intel.com/vtune/cbts/appnotes.htm
*/
#include "../common.h"
#include "mmx.h"
-/* #define ATTR_ALIGN(align) __attribute__ ((__aligned__ (align))) */
+#define ATTR_ALIGN(align) __attribute__ ((__aligned__ (align)))
-/*
-***********************************
-*
-* constants for the forward DCT
-* -----------------------------
-*
-* Be sure to check that your compiler is aligning all constants to QWORD
-* (8-byte) memory boundaries! Otherwise the unaligned memory access will
-* severely stall MMX execution.
-*
-***********************************
-*/
+//////////////////////////////////////////////////////////////////////
+//
+// constants for the forward DCT
+// -----------------------------
+//
+// Be sure to check that your compiler is aligning all constants to QWORD
+// (8-byte) memory boundaries! Otherwise the unaligned memory access will
+// severely stall MMX execution.
+//
+//////////////////////////////////////////////////////////////////////
-#define BITS_FRW_ACC 3 /*; 2 or 3 for accuracy */
+#define BITS_FRW_ACC 3 //; 2 or 3 for accuracy
#define SHIFT_FRW_COL BITS_FRW_ACC
#define SHIFT_FRW_ROW (BITS_FRW_ACC + 17 - 3)
-/* #define RND_FRW_ROW (262144 * (BITS_FRW_ACC - 1)) //; 1 << (SHIFT_FRW_ROW-1) */
+//#define RND_FRW_ROW (262144 * (BITS_FRW_ACC - 1)) //; 1 << (SHIFT_FRW_ROW-1)
#define RND_FRW_ROW (1 << (SHIFT_FRW_ROW-1))
-/* #define RND_FRW_COL (2 * (BITS_FRW_ACC - 1)) //; 1 << (SHIFT_FRW_COL-1) */
+//#define RND_FRW_COL (2 * (BITS_FRW_ACC - 1)) //; 1 << (SHIFT_FRW_COL-1)
#define RND_FRW_COL (1 << (SHIFT_FRW_COL-1))
-/* concatenated table, for forward DCT transformation */
+//concatenated table, for forward DCT transformation
const int16_t fdct_tg_all_16[] ATTR_ALIGN(8) = {
- 13036, 13036, 13036, 13036, /* tg * (2<<16) + 0.5 */
- 27146, 27146, 27146, 27146, /* tg * (2<<16) + 0.5 */
- -21746, -21746, -21746, -21746, /* tg * (2<<16) + 0.5 */
+ 13036, 13036, 13036, 13036, // tg * (2<<16) + 0.5
+ 27146, 27146, 27146, 27146, // tg * (2<<16) + 0.5
+ -21746, -21746, -21746, -21746, // tg * (2<<16) + 0.5
};
const int16_t cos_4_16[4] = {
- -19195, -19195, -19195, -19195, /* cos * (2<<16) + 0.5 */
+ -19195, -19195, -19195, -19195, //cos * (2<<16) + 0.5
};
const int16_t ocos_4_16[4] = {
- 23170, 23170, 23170, 23170, /* cos * (2<<15) + 0.5 */
+ 23170, 23170, 23170, 23170, //cos * (2<<15) + 0.5
};
static const mmx_t fdct_one_corr = {0x0001000100010001LL};
static volatile mmx_t fdct_r_row = { d:{RND_FRW_ROW, RND_FRW_ROW} };
-const int16_t tab_frw_01234567[] ATTR_ALIGN(8) = { /* forward_dct coeff table */
- /* row0 */
- 16384, 16384, 21407, -8867, /* w09 w01 w08 w00 */
- 16384, 16384, 8867, -21407, /* w13 w05 w12 w04 */
- 16384, -16384, 8867, 21407, /* w11 w03 w10 w02 */
- -16384, 16384, -21407, -8867, /* w15 w07 w14 w06 */
- 22725, 12873, 19266, -22725, /* w22 w20 w18 w16 */
- 19266, 4520, -4520, -12873, /* w23 w21 w19 w17 */
- 12873, 4520, 4520, 19266, /* w30 w28 w26 w24 */
- -22725, 19266, -12873, -22725, /* w31 w29 w27 w25 */
+const int16_t tab_frw_01234567[] ATTR_ALIGN(8) = { // forward_dct coeff table
+ //row0
+ 16384, 16384, 21407, -8867, // w09 w01 w08 w00
+ 16384, 16384, 8867, -21407, // w13 w05 w12 w04
+ 16384, -16384, 8867, 21407, // w11 w03 w10 w02
+ -16384, 16384, -21407, -8867, // w15 w07 w14 w06
+ 22725, 12873, 19266, -22725, // w22 w20 w18 w16
+ 19266, 4520, -4520, -12873, // w23 w21 w19 w17
+ 12873, 4520, 4520, 19266, // w30 w28 w26 w24
+ -22725, 19266, -12873, -22725, // w31 w29 w27 w25
- /* row1 */
- 22725, 22725, 29692, -12299, /* w09 w01 w08 w00 */
- 22725, 22725, 12299, -29692, /* w13 w05 w12 w04 */
- 22725, -22725, 12299, 29692, /* w11 w03 w10 w02 */
- -22725, 22725, -29692, -12299, /* w15 w07 w14 w06 */
- 31521, 17855, 26722, -31521, /* w22 w20 w18 w16 */
- 26722, 6270, -6270, -17855, /* w23 w21 w19 w17 */
- 17855, 6270, 6270, 26722, /* w30 w28 w26 w24 */
- -31521, 26722, -17855, -31521, /* w31 w29 w27 w25 */
+ //row1
+ 22725, 22725, 29692, -12299, // w09 w01 w08 w00
+ 22725, 22725, 12299, -29692, // w13 w05 w12 w04
+ 22725, -22725, 12299, 29692, // w11 w03 w10 w02
+ -22725, 22725, -29692, -12299, // w15 w07 w14 w06
+ 31521, 17855, 26722, -31521, // w22 w20 w18 w16
+ 26722, 6270, -6270, -17855, // w23 w21 w19 w17
+ 17855, 6270, 6270, 26722, // w30 w28 w26 w24
+ -31521, 26722, -17855, -31521, // w31 w29 w27 w25
- /* row2 */
- 21407, 21407, 27969, -11585, /* w09 w01 w08 w00 */
- 21407, 21407, 11585, -27969, /* w13 w05 w12 w04 */
- 21407, -21407, 11585, 27969, /* w11 w03 w10 w02 */
- -21407, 21407, -27969, -11585, /* w15 w07 w14 w06 */
- 29692, 16819, 25172, -29692, /* w22 w20 w18 w16 */
- 25172, 5906, -5906, -16819, /* w23 w21 w19 w17 */
- 16819, 5906, 5906, 25172, /* w30 w28 w26 w24 */
- -29692, 25172, -16819, -29692, /* w31 w29 w27 w25 */
+ //row2
+ 21407, 21407, 27969, -11585, // w09 w01 w08 w00
+ 21407, 21407, 11585, -27969, // w13 w05 w12 w04
+ 21407, -21407, 11585, 27969, // w11 w03 w10 w02
+ -21407, 21407, -27969, -11585, // w15 w07 w14 w06
+ 29692, 16819, 25172, -29692, // w22 w20 w18 w16
+ 25172, 5906, -5906, -16819, // w23 w21 w19 w17
+ 16819, 5906, 5906, 25172, // w30 w28 w26 w24
+ -29692, 25172, -16819, -29692, // w31 w29 w27 w25
- /* row3 */
- 19266, 19266, 25172, -10426, /* w09 w01 w08 w00 */
- 19266, 19266, 10426, -25172, /* w13 w05 w12 w04 */
- 19266, -19266, 10426, 25172, /* w11 w03 w10 w02 */
- -19266, 19266, -25172, -10426, /* w15 w07 w14 w06, */
- 26722, 15137, 22654, -26722, /* w22 w20 w18 w16 */
- 22654, 5315, -5315, -15137, /* w23 w21 w19 w17 */
- 15137, 5315, 5315, 22654, /* w30 w28 w26 w24 */
- -26722, 22654, -15137, -26722, /* w31 w29 w27 w25, */
+ //row3
+ 19266, 19266, 25172, -10426, // w09 w01 w08 w00
+ 19266, 19266, 10426, -25172, // w13 w05 w12 w04
+ 19266, -19266, 10426, 25172, // w11 w03 w10 w02
+ -19266, 19266, -25172, -10426, // w15 w07 w14 w06,
+ 26722, 15137, 22654, -26722, // w22 w20 w18 w16
+ 22654, 5315, -5315, -15137, // w23 w21 w19 w17
+ 15137, 5315, 5315, 22654, // w30 w28 w26 w24
+ -26722, 22654, -15137, -26722, // w31 w29 w27 w25,
- /* row4 */
- 16384, 16384, 21407, -8867, /* w09 w01 w08 w00 */
- 16384, 16384, 8867, -21407, /* w13 w05 w12 w04 */
- 16384, -16384, 8867, 21407, /* w11 w03 w10 w02 */
- -16384, 16384, -21407, -8867, /* w15 w07 w14 w06 */
- 22725, 12873, 19266, -22725, /* w22 w20 w18 w16 */
- 19266, 4520, -4520, -12873, /* w23 w21 w19 w17 */
- 12873, 4520, 4520, 19266, /* w30 w28 w26 w24 */
- -22725, 19266, -12873, -22725, /* w31 w29 w27 w25 */
+ //row4
+ 16384, 16384, 21407, -8867, // w09 w01 w08 w00
+ 16384, 16384, 8867, -21407, // w13 w05 w12 w04
+ 16384, -16384, 8867, 21407, // w11 w03 w10 w02
+ -16384, 16384, -21407, -8867, // w15 w07 w14 w06
+ 22725, 12873, 19266, -22725, // w22 w20 w18 w16
+ 19266, 4520, -4520, -12873, // w23 w21 w19 w17
+ 12873, 4520, 4520, 19266, // w30 w28 w26 w24
+ -22725, 19266, -12873, -22725, // w31 w29 w27 w25
- /* row5 */
- 19266, 19266, 25172, -10426, /* w09 w01 w08 w00 */
- 19266, 19266, 10426, -25172, /* w13 w05 w12 w04 */
- 19266, -19266, 10426, 25172, /* w11 w03 w10 w02 */
- -19266, 19266, -25172, -10426, /* w15 w07 w14 w06 */
- 26722, 15137, 22654, -26722, /* w22 w20 w18 w16 */
- 22654, 5315, -5315, -15137, /* w23 w21 w19 w17 */
- 15137, 5315, 5315, 22654, /* w30 w28 w26 w24 */
- -26722, 22654, -15137, -26722, /* w31 w29 w27 w25 */
+ //row5
+ 19266, 19266, 25172, -10426, // w09 w01 w08 w00
+ 19266, 19266, 10426, -25172, // w13 w05 w12 w04
+ 19266, -19266, 10426, 25172, // w11 w03 w10 w02
+ -19266, 19266, -25172, -10426, // w15 w07 w14 w06
+ 26722, 15137, 22654, -26722, // w22 w20 w18 w16
+ 22654, 5315, -5315, -15137, // w23 w21 w19 w17
+ 15137, 5315, 5315, 22654, // w30 w28 w26 w24
+ -26722, 22654, -15137, -26722, // w31 w29 w27 w25
- /* row6 */
- 21407, 21407, 27969, -11585, /* w09 w01 w08 w00 */
- 21407, 21407, 11585, -27969, /* w13 w05 w12 w04 */
- 21407, -21407, 11585, 27969, /* w11 w03 w10 w02 */
- -21407, 21407, -27969, -11585, /* w15 w07 w14 w06, */
- 29692, 16819, 25172, -29692, /* w22 w20 w18 w16 */
- 25172, 5906, -5906, -16819, /* w23 w21 w19 w17 */
- 16819, 5906, 5906, 25172, /* w30 w28 w26 w24 */
- -29692, 25172, -16819, -29692, /* w31 w29 w27 w25, */
+ //row6
+ 21407, 21407, 27969, -11585, // w09 w01 w08 w00
+ 21407, 21407, 11585, -27969, // w13 w05 w12 w04
+ 21407, -21407, 11585, 27969, // w11 w03 w10 w02
+ -21407, 21407, -27969, -11585, // w15 w07 w14 w06,
+ 29692, 16819, 25172, -29692, // w22 w20 w18 w16
+ 25172, 5906, -5906, -16819, // w23 w21 w19 w17
+ 16819, 5906, 5906, 25172, // w30 w28 w26 w24
+ -29692, 25172, -16819, -29692, // w31 w29 w27 w25,
- /* row7 */
- 22725, 22725, 29692, -12299, /* w09 w01 w08 w00 */
- 22725, 22725, 12299, -29692, /* w13 w05 w12 w04 */
- 22725, -22725, 12299, 29692, /* w11 w03 w10 w02 */
- -22725, 22725, -29692, -12299, /* w15 w07 w14 w06, */
- 31521, 17855, 26722, -31521, /* w22 w20 w18 w16 */
- 26722, 6270, -6270, -17855, /* w23 w21 w19 w17 */
- 17855, 6270, 6270, 26722, /* w30 w28 w26 w24 */
- -31521, 26722, -17855, -31521 /* w31 w29 w27 w25 */
+ //row7
+ 22725, 22725, 29692, -12299, // w09 w01 w08 w00
+ 22725, 22725, 12299, -29692, // w13 w05 w12 w04
+ 22725, -22725, 12299, 29692, // w11 w03 w10 w02
+ -22725, 22725, -29692, -12299, // w15 w07 w14 w06,
+ 31521, 17855, 26722, -31521, // w22 w20 w18 w16
+ 26722, 6270, -6270, -17855, // w23 w21 w19 w17
+ 17855, 6270, 6270, 26722, // w30 w28 w26 w24
+ -31521, 26722, -17855, -31521 // w31 w29 w27 w25
};
@@ -269,7 +267,7 @@ static inline void fdct_row(const int16_t *in, int16_t *out, const int16_t *tabl
movq_r2m(mm6, *(out + 4));
}
-void fdct_mmx(int16_t *block)
+void ff_fdct_mmx(int16_t *block)
{
/* XXX: not thread safe */
static int16_t block_tmp[64] ATTR_ALIGN(8);
generated by cgit v1.2.3 (git 2.25.1) at 2025-07-24 14:17:17 +0000