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-rw-r--r--liba52/resample_mmx.c266
1 files changed, 94 insertions, 172 deletions
diff --git a/liba52/resample_mmx.c b/liba52/resample_mmx.c
index 61a45ab5d4..dcbbbd46eb 100644
--- a/liba52/resample_mmx.c
+++ b/liba52/resample_mmx.c
@@ -1,11 +1,3 @@
-// this code come from a52dec/libao/audio_out_oss.c
-
-// FIXME FIXME FIXME
-
-// a52_resample_init should find the requested converter (from type flags ->
-// given number of channels) and set up some function pointers...
-
-// a52_resample() should do the conversion.
// MMX optimizations from Michael Niedermayer (michaelni@gmx.at) (under GPL)
@@ -15,137 +7,14 @@
and it would mean (C / MMX2 / MMX / 3DNOW) versions
*/
-#include <inttypes.h>
-#include <stdio.h>
-#include "a52.h"
-#include "mm_accel.h"
-#include "../config.h"
-
-int (* a52_resample) (float * _f, int16_t * s16)=NULL;
-
-#ifdef ARCH_X86
static uint64_t __attribute__((aligned(8))) magicF2W= 0x43c0000043c00000LL;
static uint64_t __attribute__((aligned(8))) wm1010= 0xFFFF0000FFFF0000LL;
static uint64_t __attribute__((aligned(8))) wm0101= 0x0000FFFF0000FFFFLL;
static uint64_t __attribute__((aligned(8))) wm1100= 0xFFFFFFFF00000000LL;
-#endif
-
-static inline int16_t convert (int32_t i)
-{
- if (i > 0x43c07fff)
- return 32767;
- else if (i < 0x43bf8000)
- return -32768;
- else
- return i - 0x43c00000;
-}
-
-static int chans=2;
-static int flags=0;
-int a52_resample_C(float * _f, int16_t * s16)
-{
+static int a52_resample_MONO_to_5_MMX(float * _f, int16_t * s16){
int i;
int32_t * f = (int32_t *) _f;
-
- switch (flags) {
- case A52_MONO:
- for (i = 0; i < 256; i++) {
- s16[5*i] = s16[5*i+1] = s16[5*i+2] = s16[5*i+3] = 0;
- s16[5*i+4] = convert (f[i]);
- }
- break;
- case A52_CHANNEL:
- case A52_STEREO:
- case A52_DOLBY:
- for (i = 0; i < 256; i++) {
- s16[2*i] = convert (f[i]);
- s16[2*i+1] = convert (f[i+256]);
- }
- break;
- case A52_3F:
- for (i = 0; i < 256; i++) {
- s16[5*i] = convert (f[i]);
- s16[5*i+1] = convert (f[i+512]);
- s16[5*i+2] = s16[5*i+3] = 0;
- s16[5*i+4] = convert (f[i+256]);
- }
- break;
- case A52_2F2R:
- for (i = 0; i < 256; i++) {
- s16[4*i] = convert (f[i]);
- s16[4*i+1] = convert (f[i+256]);
- s16[4*i+2] = convert (f[i+512]);
- s16[4*i+3] = convert (f[i+768]);
- }
- break;
- case A52_3F2R:
- for (i = 0; i < 256; i++) {
- s16[5*i] = convert (f[i]);
- s16[5*i+1] = convert (f[i+512]);
- s16[5*i+2] = convert (f[i+768]);
- s16[5*i+3] = convert (f[i+1024]);
- s16[5*i+4] = convert (f[i+256]);
- }
- break;
- case A52_MONO | A52_LFE:
- for (i = 0; i < 256; i++) {
- s16[6*i] = s16[6*i+1] = s16[6*i+2] = s16[6*i+3] = 0;
- s16[6*i+4] = convert (f[i+256]);
- s16[6*i+5] = convert (f[i]);
- }
- break;
- case A52_CHANNEL | A52_LFE:
- case A52_STEREO | A52_LFE:
- case A52_DOLBY | A52_LFE:
- for (i = 0; i < 256; i++) {
- s16[6*i] = convert (f[i+256]);
- s16[6*i+1] = convert (f[i+512]);
- s16[6*i+2] = s16[6*i+3] = s16[6*i+4] = 0;
- s16[6*i+5] = convert (f[i]);
- }
- break;
- case A52_3F | A52_LFE:
- for (i = 0; i < 256; i++) {
- s16[6*i] = convert (f[i+256]);
- s16[6*i+1] = convert (f[i+768]);
- s16[6*i+2] = s16[6*i+3] = 0;
- s16[6*i+4] = convert (f[i+512]);
- s16[6*i+5] = convert (f[i]);
- }
- break;
- case A52_2F2R | A52_LFE:
- for (i = 0; i < 256; i++) {
- s16[6*i] = convert (f[i+256]);
- s16[6*i+1] = convert (f[i+512]);
- s16[6*i+2] = convert (f[i+768]);
- s16[6*i+3] = convert (f[i+1024]);
- s16[6*i+4] = 0;
- s16[6*i+5] = convert (f[i]);
- }
- break;
- case A52_3F2R | A52_LFE:
- for (i = 0; i < 256; i++) {
- s16[6*i] = convert (f[i+256]);
- s16[6*i+1] = convert (f[i+768]);
- s16[6*i+2] = convert (f[i+1024]);
- s16[6*i+3] = convert (f[i+1280]);
- s16[6*i+4] = convert (f[i+512]);
- s16[6*i+5] = convert (f[i]);
- }
- break;
- }
- return chans*256;
-}
-
-#ifdef ARCH_X86
-int a52_resample_MMX(float * _f, int16_t * s16)
-{
- int i;
- int32_t * f = (int32_t *) _f;
-
- switch (flags) {
- case A52_MONO:
asm volatile(
"movl $-512, %%esi \n\t"
"movq magicF2W, %%mm7 \n\t"
@@ -178,10 +47,12 @@ int a52_resample_MMX(float * _f, int16_t * s16)
:: "r" (s16+1280), "r" (f+256)
:"%esi", "%edi", "memory"
);
- break;
- case A52_CHANNEL:
- case A52_STEREO:
- case A52_DOLBY:
+ return 5*256;
+}
+
+static int a52_resample_STEREO_to_2_MMX(float * _f, int16_t * s16){
+ int i;
+ int32_t * f = (int32_t *) _f;
/* benchmark scores are 0.3% better with SSE but we would need to set bias=0 and premultiply it
#ifdef HAVE_SSE
asm volatile(
@@ -225,8 +96,12 @@ int a52_resample_MMX(float * _f, int16_t * s16)
:: "r" (s16+512), "r" (f+256)
:"%esi", "memory"
);
- break;
- case A52_3F:
+ return 2*256;
+}
+
+static int a52_resample_3F_to_5_MMX(float * _f, int16_t * s16){
+ int i;
+ int32_t * f = (int32_t *) _f;
asm volatile(
"movl $-1024, %%esi \n\t"
"movq magicF2W, %%mm7 \n\t"
@@ -277,8 +152,12 @@ int a52_resample_MMX(float * _f, int16_t * s16)
:: "r" (s16+1280), "r" (f+256)
:"%esi", "%edi", "memory"
);
- break;
- case A52_2F2R:
+ return 5*256;
+}
+
+static int a52_resample_2F_2R_to_4_MMX(float * _f, int16_t * s16){
+ int i;
+ int32_t * f = (int32_t *) _f;
asm volatile(
"movl $-1024, %%esi \n\t"
"movq magicF2W, %%mm7 \n\t"
@@ -325,8 +204,12 @@ int a52_resample_MMX(float * _f, int16_t * s16)
:: "r" (s16+1024), "r" (f+256)
:"%esi", "memory"
);
- break;
- case A52_3F2R:
+ return 4*256;
+}
+
+static int a52_resample_3F_2R_to_5_MMX(float * _f, int16_t * s16){
+ int i;
+ int32_t * f = (int32_t *) _f;
asm volatile(
"movl $-1024, %%esi \n\t"
"movq magicF2W, %%mm7 \n\t"
@@ -381,8 +264,12 @@ int a52_resample_MMX(float * _f, int16_t * s16)
:: "r" (s16+1280), "r" (f+256)
:"%esi", "%edi", "memory"
);
- break;
- case A52_MONO | A52_LFE:
+ return 5*256;
+}
+
+static int a52_resample_MONO_LFE_to_6_MMX(float * _f, int16_t * s16){
+ int i;
+ int32_t * f = (int32_t *) _f;
asm volatile(
"movl $-1024, %%esi \n\t"
"movq magicF2W, %%mm7 \n\t"
@@ -418,10 +305,12 @@ int a52_resample_MMX(float * _f, int16_t * s16)
:: "r" (s16+1536), "r" (f+256)
:"%esi", "%edi", "memory"
);
- break;
- case A52_CHANNEL | A52_LFE:
- case A52_STEREO | A52_LFE:
- case A52_DOLBY | A52_LFE:
+ return 6*256;
+}
+
+static int a52_resample_STEREO_LFE_to_6_MMX(float * _f, int16_t * s16){
+ int i;
+ int32_t * f = (int32_t *) _f;
asm volatile(
"movl $-1024, %%esi \n\t"
"movq magicF2W, %%mm7 \n\t"
@@ -455,8 +344,12 @@ int a52_resample_MMX(float * _f, int16_t * s16)
:: "r" (s16+1536), "r" (f+256)
:"%esi", "%edi", "memory"
);
- break;
- case A52_3F | A52_LFE:
+ return 6*256;
+}
+
+static int a52_resample_3F_LFE_to_6_MMX(float * _f, int16_t * s16){
+ int i;
+ int32_t * f = (int32_t *) _f;
asm volatile(
"movl $-1024, %%esi \n\t"
"movq magicF2W, %%mm7 \n\t"
@@ -492,8 +385,12 @@ int a52_resample_MMX(float * _f, int16_t * s16)
:: "r" (s16+1536), "r" (f+256)
:"%esi", "%edi", "memory"
);
- break;
- case A52_2F2R | A52_LFE:
+ return 6*256;
+}
+
+static int a52_resample_2F_2R_LFE_to_6_MMX(float * _f, int16_t * s16){
+ int i;
+ int32_t * f = (int32_t *) _f;
asm volatile(
"movl $-1024, %%esi \n\t"
"movq magicF2W, %%mm7 \n\t"
@@ -535,8 +432,12 @@ int a52_resample_MMX(float * _f, int16_t * s16)
:: "r" (s16+1536), "r" (f+256)
:"%esi", "%edi", "memory"
);
- break;
- case A52_3F2R | A52_LFE:
+ return 6*256;
+}
+
+static int a52_resample_3F_2R_LFE_to_6_MMX(float * _f, int16_t * s16){
+ int i;
+ int32_t * f = (int32_t *) _f;
asm volatile(
"movl $-1024, %%esi \n\t"
"movq magicF2W, %%mm7 \n\t"
@@ -580,27 +481,48 @@ int a52_resample_MMX(float * _f, int16_t * s16)
:: "r" (s16+1536), "r" (f+256)
:"%esi", "%edi", "memory"
);
- break;
- }
- return chans*256;
+ return 6*256;
}
-#endif //arch_x86
-void a52_resample_init(uint32_t mm_accel,int _flags,int _chans){
- chans=_chans;
- flags=_flags;
- if(a52_resample==NULL) // only once please ;)
- {
- if(mm_accel & MM_ACCEL_X86_MMX) fprintf(stderr, "Using MMX optimized resampler\n");
- else fprintf(stderr, "No accelerated resampler found\n");
+static void* a52_resample_MMX(int flags, int ch){
+ switch (flags) {
+ case A52_MONO:
+ if(ch==5) return a52_resample_MONO_to_5_MMX;
+ break;
+ case A52_CHANNEL:
+ case A52_STEREO:
+ case A52_DOLBY:
+ if(ch==2) return a52_resample_STEREO_to_2_MMX;
+ break;
+ case A52_3F:
+ if(ch==5) return a52_resample_3F_to_5_MMX;
+ break;
+ case A52_2F2R:
+ if(ch==4) return a52_resample_2F_2R_to_4_MMX;
+ break;
+ case A52_3F2R:
+ if(ch==5) return a52_resample_3F_2R_to_5_MMX;
+ break;
+ case A52_MONO | A52_LFE:
+ if(ch==6) return a52_resample_MONO_LFE_to_6_MMX;
+ break;
+ case A52_CHANNEL | A52_LFE:
+ case A52_STEREO | A52_LFE:
+ case A52_DOLBY | A52_LFE:
+ if(ch==6) return a52_resample_STEREO_LFE_to_6_MMX;
+ break;
+ case A52_3F | A52_LFE:
+ if(ch==6) return a52_resample_3F_LFE_to_6_MMX;
+ break;
+ case A52_2F2R | A52_LFE:
+ if(ch==6) return a52_resample_2F_2R_LFE_to_6_MMX;
+ break;
+ case A52_3F2R | A52_LFE:
+ if(ch==6) return a52_resample_3F_2R_LFE_to_6_MMX;
+ break;
}
-
-#ifdef ARCH_X86
- if(mm_accel & MM_ACCEL_X86_MMX) a52_resample= a52_resample_MMX;
-#else
- if(0);
-#endif
- else a52_resample= a52_resample_C;
+ return NULL;
}
+
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-17 00:10:45 +0000