liba52_changes.diff

自己移植的linux下的流媒体播放器原代码,支持mms协议,支持ftp和http协议.

+		" jnz 1b			\n\t"
+	:: "r" (left+256), "r" (right+256), "m" (bias)
+	: "%esi"
+	);
+}
+
+static void mix21toS_SSE (sample_t * samples, sample_t bias)
+{
+	asm volatile(
+		"movlps %1, %%xmm7		\n\t"
+		"shufps $0x00, %%xmm7, %%xmm7	\n\t"
+		"movl $-1024, %%esi		\n\t"
+		".balign 16\n\t"
+		"1:				\n\t"
+		"movaps 2048(%0, %%esi), %%xmm0	\n\t"  // surround
+		"movaps (%0, %%esi), %%xmm1	\n\t" 
+		"movaps 1024(%0, %%esi), %%xmm2	\n\t"
+		"addps %%xmm7, %%xmm1		\n\t"
+		"addps %%xmm7, %%xmm2		\n\t"
+		"subps %%xmm0, %%xmm1		\n\t"
+		"addps %%xmm0, %%xmm2		\n\t"
+		"movaps %%xmm1, (%0, %%esi)	\n\t"
+		"movaps %%xmm2, 1024(%0, %%esi)	\n\t"
+		"addl $16, %%esi		\n\t"
+		" jnz 1b			\n\t"
+	:: "r" (samples+256), "m" (bias)
+	: "%esi"
+	);
+}
+
+static void mix31to2_SSE (sample_t * samples, sample_t bias)
+{
+	asm volatile(
+		"movlps %1, %%xmm7		\n\t"
+		"shufps $0x00, %%xmm7, %%xmm7	\n\t"
+		"movl $-1024, %%esi		\n\t"
+		".balign 16\n\t"
+		"1:				\n\t"
+		"movaps 1024(%0, %%esi), %%xmm0	\n\t"  
+		"addps 3072(%0, %%esi), %%xmm0	\n\t"  
+		"addps %%xmm7, %%xmm0		\n\t" // common
+		"movaps (%0, %%esi), %%xmm1	\n\t" 
+		"movaps 2048(%0, %%esi), %%xmm2	\n\t"
+		"addps %%xmm0, %%xmm1		\n\t"
+		"addps %%xmm0, %%xmm2		\n\t"
+		"movaps %%xmm1, (%0, %%esi)	\n\t"
+		"movaps %%xmm2, 1024(%0, %%esi)	\n\t"
+		"addl $16, %%esi		\n\t"
+		" jnz 1b			\n\t"
+	:: "r" (samples+256), "m" (bias)
+	: "%esi"
+	);
+}
+
+static void mix31toS_SSE (sample_t * samples, sample_t bias)
+{
+	asm volatile(
+		"movlps %1, %%xmm7		\n\t"
+		"shufps $0x00, %%xmm7, %%xmm7	\n\t"
+		"movl $-1024, %%esi		\n\t"
+		".balign 16\n\t"
+		"1:				\n\t"
+		"movaps 1024(%0, %%esi), %%xmm0	\n\t"  
+		"movaps 3072(%0, %%esi), %%xmm3	\n\t" // surround
+		"addps %%xmm7, %%xmm0		\n\t" // common
+		"movaps (%0, %%esi), %%xmm1	\n\t" 
+		"movaps 2048(%0, %%esi), %%xmm2	\n\t"
+		"addps %%xmm0, %%xmm1		\n\t"
+		"addps %%xmm0, %%xmm2		\n\t"
+		"subps %%xmm3, %%xmm1		\n\t"
+		"addps %%xmm3, %%xmm2		\n\t"
+		"movaps %%xmm1, (%0, %%esi)	\n\t"
+		"movaps %%xmm2, 1024(%0, %%esi)	\n\t"
+		"addl $16, %%esi		\n\t"
+		" jnz 1b			\n\t"
+	:: "r" (samples+256), "m" (bias)
+	: "%esi"
+	);
+}
+
+static void mix22toS_SSE (sample_t * samples, sample_t bias)
+{
+	asm volatile(
+		"movlps %1, %%xmm7		\n\t"
+		"shufps $0x00, %%xmm7, %%xmm7	\n\t"
+		"movl $-1024, %%esi		\n\t"
+		".balign 16\n\t"
+		"1:				\n\t"
+		"movaps 2048(%0, %%esi), %%xmm0	\n\t"  
+		"addps 3072(%0, %%esi), %%xmm0	\n\t" // surround
+		"movaps (%0, %%esi), %%xmm1	\n\t" 
+		"movaps 1024(%0, %%esi), %%xmm2	\n\t"
+		"addps %%xmm7, %%xmm1		\n\t"
+		"addps %%xmm7, %%xmm2		\n\t"
+		"subps %%xmm0, %%xmm1		\n\t"
+		"addps %%xmm0, %%xmm2		\n\t"
+		"movaps %%xmm1, (%0, %%esi)	\n\t"
+		"movaps %%xmm2, 1024(%0, %%esi)	\n\t"
+		"addl $16, %%esi		\n\t"
+		" jnz 1b			\n\t"
+	:: "r" (samples+256), "m" (bias)
+	: "%esi"
+	);
+}
+
+static void mix32to2_SSE (sample_t * samples, sample_t bias)
+{
+	asm volatile(
+	"movlps %1, %%xmm7		\n\t"
+	"shufps $0x00, %%xmm7, %%xmm7	\n\t"
+	"movl $-1024, %%esi		\n\t"
+	".balign 16\n\t"
+	"1:				\n\t"
+	"movaps 1024(%0, %%esi), %%xmm0	\n\t" 
+	"addps %%xmm7, %%xmm0		\n\t" // common
+	"movaps %%xmm0, %%xmm1		\n\t" // common
+	"addps (%0, %%esi), %%xmm0	\n\t" 
+	"addps 2048(%0, %%esi), %%xmm1	\n\t" 
+	"addps 3072(%0, %%esi), %%xmm0	\n\t" 
+	"addps 4096(%0, %%esi), %%xmm1	\n\t" 
+	"movaps %%xmm0, (%0, %%esi)	\n\t"
+	"movaps %%xmm1, 1024(%0, %%esi)	\n\t"
+	"addl $16, %%esi		\n\t"
+	" jnz 1b			\n\t"
+	:: "r" (samples+256), "m" (bias)
+	: "%esi"
+	);
+}
+
+static void mix32toS_SSE (sample_t * samples, sample_t bias)
+{
+	asm volatile(
+	"movlps %1, %%xmm7		\n\t"
+	"shufps $0x00, %%xmm7, %%xmm7	\n\t"
+	"movl $-1024, %%esi		\n\t"
+	".balign 16\n\t"
+	"1:				\n\t"
+	"movaps 1024(%0, %%esi), %%xmm0	\n\t" 
+	"movaps 3072(%0, %%esi), %%xmm2	\n\t" 
+	"addps %%xmm7, %%xmm0		\n\t" // common
+	"addps 4096(%0, %%esi), %%xmm2	\n\t" // surround	
+	"movaps (%0, %%esi), %%xmm1	\n\t" 
+	"movaps 2048(%0, %%esi), %%xmm3	\n\t" 
+	"subps %%xmm2, %%xmm1		\n\t"	
+	"addps %%xmm2, %%xmm3		\n\t"	
+	"addps %%xmm0, %%xmm1		\n\t"	
+	"addps %%xmm0, %%xmm3		\n\t"	
+	"movaps %%xmm1, (%0, %%esi)	\n\t"
+	"movaps %%xmm3, 1024(%0, %%esi)	\n\t"
+	"addl $16, %%esi		\n\t"
+	" jnz 1b			\n\t"
+	:: "r" (samples+256), "m" (bias)
+	: "%esi"
+	);
+}
+
+static void move2to1_SSE (sample_t * src, sample_t * dest, sample_t bias)
+{
+	asm volatile(
+		"movlps %2, %%xmm7		\n\t"
+		"shufps $0x00, %%xmm7, %%xmm7	\n\t"
+		"movl $-1024, %%esi		\n\t"
+		".balign 16\n\t"
+		"1:				\n\t"
+		"movaps (%0, %%esi), %%xmm0	\n\t"  
+		"movaps 16(%0, %%esi), %%xmm1	\n\t"  
+		"addps 1024(%0, %%esi), %%xmm0	\n\t"
+		"addps 1040(%0, %%esi), %%xmm1	\n\t"
+		"addps %%xmm7, %%xmm0		\n\t"
+		"addps %%xmm7, %%xmm1		\n\t"
+		"movaps %%xmm0, (%1, %%esi)	\n\t"
+		"movaps %%xmm1, 16(%1, %%esi)	\n\t"
+		"addl $32, %%esi		\n\t"
+		" jnz 1b			\n\t"
+	:: "r" (src+256), "r" (dest+256), "m" (bias)
+	: "%esi"
+	);
+}
+
+static void zero_MMX(sample_t * samples)
+{
+	asm volatile(
+		"movl $-1024, %%esi		\n\t"
+		"pxor %%mm0, %%mm0		\n\t"
+		".balign 16\n\t"
+		"1:				\n\t"
+		"movq %%mm0, (%0, %%esi)	\n\t"
+		"movq %%mm0, 8(%0, %%esi)	\n\t"
+		"movq %%mm0, 16(%0, %%esi)	\n\t"
+		"movq %%mm0, 24(%0, %%esi)	\n\t"
+		"addl $32, %%esi		\n\t"
+		" jnz 1b			\n\t"
+		"emms"
+	:: "r" (samples+256)
+	: "%esi"
+	);
+}
+
+/*
+ I hope dest and src will be at least 8 byte aligned and size
+ will devide on 8 without remain
+ Note: untested and unused.
+*/
+static void copy_MMX(void *dest,const void *src,unsigned size)
+{
+  unsigned i;
+  size /= 64;
+	for(i=0;i<size;i++)
+	{
+	    __asm __volatile(
+		"movq	%0,   %%mm0\n\t"
+		"movq	8%0,  %%mm1\n\t"
+		"movq	16%0, %%mm2\n\t"
+		"movq	24%0, %%mm3\n\t"
+		"movq	32%0, %%mm4\n\t"
+		"movq	40%0, %%mm5\n\t"
+		"movq	48%0, %%mm6\n\t"
+		"movq	56%0, %%mm7\n\t"
+		"movq	%%mm0, %1\n\t"
+		"movq	%%mm1, 8%1\n\t"
+		"movq	%%mm2, 16%1\n\t"
+		"movq	%%mm3, 24%1\n\t"
+		"movq	%%mm4, 32%1\n\t"
+		"movq	%%mm5, 40%1\n\t"
+		"movq	%%mm6, 48%1\n\t"
+		"movq	%%mm7, 56%1\n\t"
+		:
+		:"m"(src),"m"(dest));
+	}
+}
+
+static void downmix_SSE (sample_t * samples, int acmod, int output, sample_t bias,
+	      sample_t clev, sample_t slev)
+{
+    switch (CONVERT (acmod, output & A52_CHANNEL_MASK)) {
+
+    case CONVERT (A52_CHANNEL, A52_CHANNEL2):
+	memcpy (samples, samples + 256, 256 * sizeof (sample_t));
+	break;
+
+    case CONVERT (A52_CHANNEL, A52_MONO):
+    case CONVERT (A52_STEREO, A52_MONO):
+    mix_2to1_SSE:
+	mix2to1_SSE (samples, samples + 256, bias);
+	break;
+
+    case CONVERT (A52_2F1R, A52_MONO):
+	if (slev == 0)
+	    goto mix_2to1_SSE;
+    case CONVERT (A52_3F, A52_MONO):
+    mix_3to1_SSE:
+	mix3to1_SSE (samples, bias);
+	break;
+
+    case CONVERT (A52_3F1R, A52_MONO):
+	if (slev == 0)
+	    goto mix_3to1_SSE;
+    case CONVERT (A52_2F2R, A52_MONO):
+	if (slev == 0)
+	    goto mix_2to1_SSE;
+	mix4to1_SSE (samples, bias);
+	break;
+
+    case CONVERT (A52_3F2R, A52_MONO):
+	if (slev == 0)
+	    goto mix_3to1_SSE;
+	mix5to1_SSE (samples, bias);
+	break;
+
+    case CONVERT (A52_MONO, A52_DOLBY):
+	memcpy (samples + 256, samples, 256 * sizeof (sample_t));
+	break;
+
+    case CONVERT (A52_3F, A52_STEREO):
+    case CONVERT (A52_3F, A52_DOLBY):
+    mix_3to2_SSE:
+	mix3to2_SSE (samples, bias);
+	break;
+
+    case CONVERT (A52_2F1R, A52_STEREO):
+	if (slev == 0)
+	    break;
+	mix21to2_SSE (samples, samples + 256, bias);
+	break;
+
+    case CONVERT (A52_2F1R, A52_DOLBY):
+	mix21toS_SSE (samples, bias);
+	break;
+
+    case CONVERT (A52_3F1R, A52_STEREO):
+	if (slev == 0)
+	    goto mix_3to2_SSE;
+	mix31to2_SSE (samples, bias);
+	break;
+
+    case CONVERT (A52_3F1R, A52_DOLBY):
+	mix31toS_SSE (samples, bias);
+	break;
+
+    case CONVERT (A52_2F2R, A52_STEREO):
+	if (slev == 0)
+	    break;
+	mix2to1_SSE (samples, samples + 512, bias);
+	mix2to1_SSE (samples + 256, samples + 768, bias);
+	break;
+
+    case CONVERT (A52_2F2R, A52_DOLBY):
+	mix22toS_SSE (samples, bias);
+	break;
+
+    case CONVERT (A52_3F2R, A52_STEREO):
+	if (slev == 0)
+	    goto mix_3to2_SSE;
+	mix32to2_SSE (samples, bias);
+	break;
+
+    case CONVERT (A52_3F2R, A52_DOLBY):
+	mix32toS_SSE (samples, bias);
+	break;
+
+    case CONVERT (A52_3F1R, A52_3F):
+	if (slev == 0)
+	    break;
+	mix21to2_SSE (samples, samples + 512, bias);
+	break;
+
+    case CONVERT (A52_3F2R, A52_3F):
+	if (slev == 0)
+	    break;
+	mix2to1_SSE (samples, samples + 768, bias);
+	mix2to1_SSE (samples + 512, samples + 1024, bias);
+	break;
+
+    case CONVERT (A52_3F1R, A52_2F1R):
+	mix3to2_SSE (samples, bias);
+	memcpy (samples + 512, samples + 768, 256 * sizeof (sample_t));
+	break;
+
+    case CONVERT (A52_2F2R, A52_2F1R):
+	mix2to1_SSE (samples + 512, samples + 768, bias);
+	break;
+
+    case CONVERT (A52_3F2R, A52_2F1R):
+	mix3to2_SSE (samples, bias); //FIXME possible bug? (output doesnt seem to be used)
+	move2to1_SSE (samples + 768, samples + 512, bias);
+	break;
+
+    case CONVERT (A52_3F2R, A52_3F1R):
+	mix2to1_SSE (samples + 768, samples + 1024, bias);
+	break;
+
+    case CONVERT (A52_2F1R, A52_2F2R):
+	memcpy (samples + 768, samples + 512, 256 * sizeof (sample_t));
+	break;
+
+    case CONVERT (A52_3F1R, A52_2F2R):
+	mix3to2_SSE (samples, bias);
+	memcpy (samples + 512, samples + 768, 256 * sizeof (sample_t));
+	break;
+
+    case CONVERT (A52_3F2R, A52_2F2R):
+	mix3to2_SSE (samples, bias);
+	memcpy (samples + 512, samples + 768, 256 * sizeof (sample_t));
+	memcpy (samples + 768, samples + 1024, 256 * sizeof (sample_t));
+	break;
+
+    case CONVERT (A52_3F1R, A52_3F2R):
+	memcpy (samples + 1024, samples + 768, 256 * sizeof (sample_t));
+	break;
+    }
+}
+
+static void upmix_MMX (sample_t * samples, int acmod, int output)
+{
+    switch (CONVERT (acmod, output & A52_CHANNEL_MASK)) {
+
+    case CONVERT (A52_CHANNEL, A52_CHANNEL2):
+	memcpy (samples + 256, samples, 256 * sizeof (sample_t));
+	break;
+
+    case CONVERT (A52_3F2R, A52_MONO):
+	zero_MMX (samples + 1024);
+    case CONVERT (A52_3F1R, A52_MONO):
+    case CONVERT (A52_2F2R, A52_MONO):
+	zero_MMX (samples + 768);
+    case CONVERT (A52_3F, A52_MONO):
+    case CONVERT (A52_2F1R, A52_MONO):
+	zero_MMX (samples + 512);
+    case CONVERT (A52_CHANNEL, A52_MONO):
+    case CONVERT (A52_STEREO, A52_MONO):
+	zero_MMX (samples + 256);
+	break;
+
+    case CONVERT (A52_3F2R, A52_STEREO):
+    case CONVERT (A52_3F2R, A52_DOLBY):
+	zero_MMX (samples + 1024);
+    case CONVERT (A52_3F1R, A52_STEREO):
+    case CONVERT (A52_3F1R, A52_DOLBY):
+	zero_MMX (samples + 768);
+    case CONVERT (A52_3F, A52_STEREO):
+    case CONVERT (A52_3F, A52_DOLBY):
+    mix_3to2_MMX:
+	memcpy (samples + 512, samples + 256, 256 * sizeof (sample_t));
+	zero_MMX (samples + 256);
+	break;
+
+    case CONVERT (A52_2F2R, A52_STEREO):
+    case CONVERT (A52_2F2R, A52_DOLBY):
+	zero_MMX (samples + 768);
+    case CONVERT (A52_2F1R, A52_STEREO):
+    case CONVERT (A52_2F1R, A52_DOLBY):
+	zero_MMX (samples + 512);
+	break;
+
+    case CONVERT (A52_3F2R, A52_3F):
+	zero_MMX (samples + 1024);
+    case CONVERT (A52_3F1R, A52_3F):
+    case CONVERT (A52_2F2R, A52_2F1R):
+	zero_MMX (samples + 768);
+	break;
+
+    case CONVERT (A52_3F2R, A52_3F1R):
+	zero_MMX (samples + 1024);
+	break;
+
+    case CONVERT (A52_3F2R, A52_2F1R):
+	zero_MMX (samples + 1024);
+    case CONVERT (A52_3F1R, A52_2F1R):
+    mix_31to21_MMX:
+	memcpy (samples + 768, samples + 512, 256 * sizeof (sample_t));
+	goto mix_3to2_MMX;
+
+    case CONVERT (A52_3F2R, A52_2F2R):
+	memcpy (samples + 1024, samples + 768, 256 * sizeof (sample_t));
+	goto mix_31to21_MMX;
+    }
+}
+
+static void mix2to1_3dnow (sample_t * dest, sample_t * src, sample_t bias)
+{
+	asm volatile(
+	"movd  %2, %%mm7	\n\t"
+	"punpckldq %2, %%mm7	\n\t"
+	"movl  $-1024, %%esi	\n\t"
+	".balign 16\n\t"
+	"1:			\n\t"
+	"movq  (%0, %%esi), %%mm0	\n\t" 
+	"movq  8(%0, %%esi), %%mm1	\n\t"
+	"movq  16(%0, %%esi), %%mm2	\n\t" 
+	"movq  24(%0, %%esi), %%mm3	\n\t"
+	"pfadd (%1, %%esi), %%mm0	\n\t"