1 files changed, 155 insertions, 0 deletions
diff --git a/devel/sdl12/files/extra-patch-src_audio_SDL__mixer__MMX.c b/devel/sdl12/files/extra-patch-src_audio_SDL__mixer__MMX.c
new file mode 100644
index 000000000000..1e4b3c33e1da
--- /dev/null
+++ b/devel/sdl12/files/extra-patch-src_audio_SDL__mixer__MMX.c
@@ -0,0 +1,155 @@
+--- src/audio/SDL_mixer_MMX.c.orig	Sat Nov  9 07:13:28 2002
++++ src/audio/SDL_mixer_MMX.c	Sun May 16 19:19:47 2004
+@@ -15,13 +15,11 @@
+ {
+     __asm__ __volatile__ (
+ 
+-"	movl %0,%%edi\n"	// edi = dst
+-"	movl %1,%%esi\n"	// esi = src
+ "	movl %3,%%eax\n"	// eax = volume
+ 
+-"	movl %2,%%ebx\n"	// ebx = size
++"	movl %2,%%edx\n"	// edx = size
+ 
+-"	shrl $4,%%ebx\n"	// process 16 bytes per iteration = 8 samples
++"	shrl $4,%%edx\n"	// process 16 bytes per iteration = 8 samples
+ 
+ "	jz .endS16\n"
+ 
+@@ -39,14 +37,14 @@
+ ".align 16\n"
+ "	.mixloopS16:\n"
+ 
+-"	movq (%%esi),%%mm1\n" // mm1 = a|b|c|d
++"	movq (%1),%%mm1\n" // mm1 = a|b|c|d
+ 
+ "	movq %%mm1,%%mm2\n" // mm2 = a|b|c|d
+ 
+-"	movq 8(%%esi),%%mm4\n" // mm4 = e|f|g|h
++"	movq 8(%1),%%mm4\n" // mm4 = e|f|g|h
+ 
+ 	// pré charger le buffer dst dans mm7
+-"	movq (%%edi),%%mm7\n" // mm7 = dst[0]"
++"	movq (%0),%%mm7\n" // mm7 = dst[0]"
+ 
+ 	// multiplier par le volume
+ "	pmullw %%mm0,%%mm1\n" // mm1 = l(a*v)|l(b*v)|l(c*v)|l(d*v)
+@@ -69,11 +67,11 @@
+ "	punpcklwd %%mm5,%%mm6\n" // mm6 = g*v|h*v
+ 
+ 	// pré charger le buffer dst dans mm5
+-"	movq 8(%%edi),%%mm5\n" // mm5 = dst[1]
++"	movq 8(%0),%%mm5\n" // mm5 = dst[1]
+ 
+ 	// diviser par 128
+ "	psrad $7,%%mm1\n" // mm1 = a*v/128|b*v/128 , 128 = SDL_MIX_MAXVOLUME
+-"	addl $16,%%esi\n"
++"	add $16,%1\n"
+ 
+ "	psrad $7,%%mm3\n" // mm3 = c*v/128|d*v/128
+ 
+@@ -87,15 +85,15 @@
+ 
+ 	// mm4 = le sample avec le volume modifié
+ "	packssdw %%mm4,%%mm6\n" // mm6 = s(e*v|f*v|g*v|h*v)
+-"	movq %%mm3,(%%edi)\n"
++"	movq %%mm3,(%0)\n"
+ 
+ "	paddsw %%mm5,%%mm6\n" // mm6 = adjust_volume(src)+dst
+ 
+-"	movq %%mm6,8(%%edi)\n"
++"	movq %%mm6,8(%0)\n"
+ 
+-"	addl $16,%%edi\n"
++"	add $16,%0\n"
+ 
+-"	dec %%ebx\n"
++"	dec %%edx\n"
+ 
+ "	jnz .mixloopS16\n"
+ 
+@@ -103,9 +101,9 @@
+ 
+ ".endS16:\n"
+ 	 :
+-	 : "m" (dst), "m"(src),"m"(size),
++	 : "r" (dst), "r"(src),"m"(size),
+ 	 "m"(volume)
+-	 : "eax","ebx", "esi", "edi","memory"
++	 : "eax","edx","memory"
+ 	 );
+ }
+ 
+@@ -119,11 +117,9 @@
+ {
+     __asm__ __volatile__ (
+ 
+-"	movl %0,%%edi\n"	// edi = dst
+-"	movl %1,%%esi\n"	// esi = src
+ "	movl %3,%%eax\n"	// eax = volume
+ 
+-"	movd %%ebx,%%mm0\n"
++"	movd %%edx,%%mm0\n"
+ "	movq %%mm0,%%mm1\n"
+ "	psllq $16,%%mm0\n"
+ "	por %%mm1,%%mm0\n"
+@@ -132,17 +128,17 @@
+ "	psllq $16,%%mm0\n"
+ "	por %%mm1,%%mm0\n"
+ 
+-"	movl %2,%%ebx\n"	// ebx = size
+-"	shr $3,%%ebx\n"	// process 8 bytes per iteration = 8 samples
++"	movl %2,%%edx\n"	// edx = size
++"	shr $3,%%edx\n"	// process 8 bytes per iteration = 8 samples
+ 
+-"	cmp $0,%%ebx\n"
++"	cmp $0,%%edx\n"
+ "	je .endS8\n"
+ 
+ ".align 16\n"
+ "	.mixloopS8:\n"
+ 
+ "	pxor %%mm2,%%mm2\n"		// mm2 = 0
+-"	movq (%%esi),%%mm1\n"	// mm1 = a|b|c|d|e|f|g|h
++"	movq (%1),%%mm1\n"	// mm1 = a|b|c|d|e|f|g|h
+ 
+ "	movq %%mm1,%%mm3\n" 	// mm3 = a|b|c|d|e|f|g|h
+ 
+@@ -152,10 +148,10 @@
+ "	punpckhbw %%mm2,%%mm1\n"	// mm1 = 0|a|0|b|0|c|0|d
+ 
+ "	punpcklbw %%mm2,%%mm3\n"	// mm3 = 0|e|0|f|0|g|0|h
+-"	movq (%%edi),%%mm2\n"	// mm2 = destination
++"	movq (%0),%%mm2\n"	// mm2 = destination
+ 
+ "	pmullw %%mm0,%%mm1\n"	// mm1 = v*a|v*b|v*c|v*d
+-"	addl $8,%%esi\n"
++"	add $8,%1\n"
+ 
+ "	pmullw %%mm0,%%mm3\n"	// mm3 = v*e|v*f|v*g|v*h
+ "	psraw $7,%%mm1\n"		// mm1 = v*a/128|v*b/128|v*c/128|v*d/128 
+@@ -166,19 +162,19 @@
+ 
+ "	paddsb %%mm2,%%mm3\n"	// add to destination buffer
+ 
+-"	movq %%mm3,(%%edi)\n"	// store back to ram
+-"	addl $8,%%edi\n"
++"	movq %%mm3,(%0)\n"	// store back to ram
++"	add $8,%0\n"
+ 
+-"	dec %%ebx\n"
++"	dec %%edx\n"
+ 
+ "	jnz .mixloopS8\n"
+ 
+ ".endS8:\n"
+ "	emms\n"
+ 	 :
+-	 : "m" (dst), "m"(src),"m"(size),
++	 : "r" (dst), "r"(src),"m"(size),
+ 	 "m"(volume)
+-	 : "eax","ebx", "esi", "edi","memory"
++	 : "eax","edx","memory"
+ 	 );
+ }
+ #endif