sdl-ios-xcode: src/audio/SDL_mixer

annotate src/audio/SDL_mixer_MMX.c @ 1621:f12379c41042

Fixes bug #195: The proper name of Apple's operating system is "Mac OS X" not "MacOS X", as can bee seen in many places, for example http://www.apple.com/macosx/). This contrasts the naming of the old operating system, which was called "MacOS" and today is often refered to as "MacOS Classic". The attached patches fixes the misuse of the name "MacOS X" in both the SDL12 and sdlweb CVS modules.

author	Sam Lantinga <slouken@libsdl.org>
date	Thu, 13 Apr 2006 13:08:26 +0000
parents	97d0966f4bf7
children	782fd950bd46 c121d94672cb a1b03ba2fcd0

rev	line source
1402 d910939febfa Use consistent identifiers for the various platforms we support. Sam Lantinga <slouken@libsdl.org> parents: 1147 diff changeset	1 /*
d910939febfa Use consistent identifiers for the various platforms we support. Sam Lantinga <slouken@libsdl.org> parents: 1147 diff changeset	2 SDL - Simple DirectMedia Layer
d910939febfa Use consistent identifiers for the various platforms we support. Sam Lantinga <slouken@libsdl.org> parents: 1147 diff changeset	3 Copyright (C) 1997-2006 Sam Lantinga
d910939febfa Use consistent identifiers for the various platforms we support. Sam Lantinga <slouken@libsdl.org> parents: 1147 diff changeset	4
d910939febfa Use consistent identifiers for the various platforms we support. Sam Lantinga <slouken@libsdl.org> parents: 1147 diff changeset	5 This library is free software; you can redistribute it and/or
d910939febfa Use consistent identifiers for the various platforms we support. Sam Lantinga <slouken@libsdl.org> parents: 1147 diff changeset	6 modify it under the terms of the GNU Lesser General Public
d910939febfa Use consistent identifiers for the various platforms we support. Sam Lantinga <slouken@libsdl.org> parents: 1147 diff changeset	7 License as published by the Free Software Foundation; either
d910939febfa Use consistent identifiers for the various platforms we support. Sam Lantinga <slouken@libsdl.org> parents: 1147 diff changeset	8 version 2.1 of the License, or (at your option) any later version.
d910939febfa Use consistent identifiers for the various platforms we support. Sam Lantinga <slouken@libsdl.org> parents: 1147 diff changeset	9
d910939febfa Use consistent identifiers for the various platforms we support. Sam Lantinga <slouken@libsdl.org> parents: 1147 diff changeset	10 This library is distributed in the hope that it will be useful,
d910939febfa Use consistent identifiers for the various platforms we support. Sam Lantinga <slouken@libsdl.org> parents: 1147 diff changeset	11 but WITHOUT ANY WARRANTY; without even the implied warranty of
d910939febfa Use consistent identifiers for the various platforms we support. Sam Lantinga <slouken@libsdl.org> parents: 1147 diff changeset	12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
d910939febfa Use consistent identifiers for the various platforms we support. Sam Lantinga <slouken@libsdl.org> parents: 1147 diff changeset	13 Lesser General Public License for more details.
d910939febfa Use consistent identifiers for the various platforms we support. Sam Lantinga <slouken@libsdl.org> parents: 1147 diff changeset	14
d910939febfa Use consistent identifiers for the various platforms we support. Sam Lantinga <slouken@libsdl.org> parents: 1147 diff changeset	15 You should have received a copy of the GNU Lesser General Public
d910939febfa Use consistent identifiers for the various platforms we support. Sam Lantinga <slouken@libsdl.org> parents: 1147 diff changeset	16 License along with this library; if not, write to the Free Software
d910939febfa Use consistent identifiers for the various platforms we support. Sam Lantinga <slouken@libsdl.org> parents: 1147 diff changeset	17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
d910939febfa Use consistent identifiers for the various platforms we support. Sam Lantinga <slouken@libsdl.org> parents: 1147 diff changeset	18
d910939febfa Use consistent identifiers for the various platforms we support. Sam Lantinga <slouken@libsdl.org> parents: 1147 diff changeset	19 Sam Lantinga
d910939febfa Use consistent identifiers for the various platforms we support. Sam Lantinga <slouken@libsdl.org> parents: 1147 diff changeset	20 slouken@libsdl.org
d910939febfa Use consistent identifiers for the various platforms we support. Sam Lantinga <slouken@libsdl.org> parents: 1147 diff changeset	21 */
d910939febfa Use consistent identifiers for the various platforms we support. Sam Lantinga <slouken@libsdl.org> parents: 1147 diff changeset	22 #include "SDL_config.h"
d910939febfa Use consistent identifiers for the various platforms we support. Sam Lantinga <slouken@libsdl.org> parents: 1147 diff changeset	23
1019 e3b3130f3af8 Date: Fri, 31 Dec 2004 04:14:09 +0900 Sam Lantinga <slouken@libsdl.org> parents: 887 diff changeset	24 /*
e3b3130f3af8 Date: Fri, 31 Dec 2004 04:14:09 +0900 Sam Lantinga <slouken@libsdl.org> parents: 887 diff changeset	25 MMX assembler version of SDL_MixAudio for signed little endian 16 bit samples and signed 8 bit samples
e3b3130f3af8 Date: Fri, 31 Dec 2004 04:14:09 +0900 Sam Lantinga <slouken@libsdl.org> parents: 887 diff changeset	26 Copyright 2002 Stephane Marchesin (stephane.marchesin@wanadoo.fr)
e3b3130f3af8 Date: Fri, 31 Dec 2004 04:14:09 +0900 Sam Lantinga <slouken@libsdl.org> parents: 887 diff changeset	27 This code is licensed under the LGPL (see COPYING for details)
e3b3130f3af8 Date: Fri, 31 Dec 2004 04:14:09 +0900 Sam Lantinga <slouken@libsdl.org> parents: 887 diff changeset	28
e3b3130f3af8 Date: Fri, 31 Dec 2004 04:14:09 +0900 Sam Lantinga <slouken@libsdl.org> parents: 887 diff changeset	29 Assumes buffer size in bytes is a multiple of 16
e3b3130f3af8 Date: Fri, 31 Dec 2004 04:14:09 +0900 Sam Lantinga <slouken@libsdl.org> parents: 887 diff changeset	30 Assumes SDL_MIX_MAXVOLUME = 128
e3b3130f3af8 Date: Fri, 31 Dec 2004 04:14:09 +0900 Sam Lantinga <slouken@libsdl.org> parents: 887 diff changeset	31 */
539 a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	32
a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	33
1019 e3b3130f3af8 Date: Fri, 31 Dec 2004 04:14:09 +0900 Sam Lantinga <slouken@libsdl.org> parents: 887 diff changeset	34 /***********************************************
e3b3130f3af8 Date: Fri, 31 Dec 2004 04:14:09 +0900 Sam Lantinga <slouken@libsdl.org> parents: 887 diff changeset	35 * Mixing for 16 bit signed buffers
e3b3130f3af8 Date: Fri, 31 Dec 2004 04:14:09 +0900 Sam Lantinga <slouken@libsdl.org> parents: 887 diff changeset	36 ***********************************************/
539 a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	37
1402 d910939febfa Use consistent identifiers for the various platforms we support. Sam Lantinga <slouken@libsdl.org> parents: 1147 diff changeset	38 #if defined(__GNUC__) && defined(__i386__) && defined(SDL_ASSEMBLY_ROUTINES)
539 a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	39 void SDL_MixAudio_MMX_S16(char* dst,char* src,unsigned int size,int volume)
a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	40 {
a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	41 __asm__ __volatile__ (
a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	42
1612 97d0966f4bf7 Fixed some ultra-pedantic gcc warnings Sam Lantinga <slouken@libsdl.org> parents: 1411 diff changeset	43 " movl %3,%%eax\n" /* eax = volume */
539 a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	44
1612 97d0966f4bf7 Fixed some ultra-pedantic gcc warnings Sam Lantinga <slouken@libsdl.org> parents: 1411 diff changeset	45 " movl %2,%%edx\n" /* edx = size */
539 a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	46
1612 97d0966f4bf7 Fixed some ultra-pedantic gcc warnings Sam Lantinga <slouken@libsdl.org> parents: 1411 diff changeset	47 " shrl $4,%%edx\n" /* process 16 bytes per iteration = 8 samples */
539 a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	48
a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	49 " jz .endS16\n"
a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	50
a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	51 " pxor %%mm0,%%mm0\n"
a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	52
a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	53 " movd %%eax,%%mm0\n"
a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	54 " movq %%mm0,%%mm1\n"
a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	55 " psllq $16,%%mm0\n"
a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	56 " por %%mm1,%%mm0\n"
a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	57 " psllq $16,%%mm0\n"
a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	58 " por %%mm1,%%mm0\n"
a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	59 " psllq $16,%%mm0\n"
1612 97d0966f4bf7 Fixed some ultra-pedantic gcc warnings Sam Lantinga <slouken@libsdl.org> parents: 1411 diff changeset	60 " por %%mm1,%%mm0\n" /* mm0 = vol\|vol\|vol\|vol */
539 a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	61
1411 efb34e597d21 Fixed assembly alignment error on Intel Macs. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	62 ".align 8\n"
539 a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	63 " .mixloopS16:\n"
a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	64
1612 97d0966f4bf7 Fixed some ultra-pedantic gcc warnings Sam Lantinga <slouken@libsdl.org> parents: 1411 diff changeset	65 " movq (%1),%%mm1\n" /* mm1 = a\|b\|c\|d */
539 a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	66
1612 97d0966f4bf7 Fixed some ultra-pedantic gcc warnings Sam Lantinga <slouken@libsdl.org> parents: 1411 diff changeset	67 " movq %%mm1,%%mm2\n" /* mm2 = a\|b\|c\|d */
539 a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	68
1612 97d0966f4bf7 Fixed some ultra-pedantic gcc warnings Sam Lantinga <slouken@libsdl.org> parents: 1411 diff changeset	69 " movq 8(%1),%%mm4\n" /* mm4 = e\|f\|g\|h */
539 a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	70
1612 97d0966f4bf7 Fixed some ultra-pedantic gcc warnings Sam Lantinga <slouken@libsdl.org> parents: 1411 diff changeset	71 /* pr� charger le buffer dst dans mm7 */
97d0966f4bf7 Fixed some ultra-pedantic gcc warnings Sam Lantinga <slouken@libsdl.org> parents: 1411 diff changeset	72 " movq (%0),%%mm7\n" /* mm7 = dst[0] */
539 a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	73
1612 97d0966f4bf7 Fixed some ultra-pedantic gcc warnings Sam Lantinga <slouken@libsdl.org> parents: 1411 diff changeset	74 /* multiplier par le volume */
97d0966f4bf7 Fixed some ultra-pedantic gcc warnings Sam Lantinga <slouken@libsdl.org> parents: 1411 diff changeset	75 " pmullw %%mm0,%%mm1\n" /* mm1 = l(av)\|l(bv)\|l(cv)\|l(dv) */
539 a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	76
1612 97d0966f4bf7 Fixed some ultra-pedantic gcc warnings Sam Lantinga <slouken@libsdl.org> parents: 1411 diff changeset	77 " pmulhw %%mm0,%%mm2\n" /* mm2 = h(av)\|h(bv)\|h(cv)\|h(dv) */
97d0966f4bf7 Fixed some ultra-pedantic gcc warnings Sam Lantinga <slouken@libsdl.org> parents: 1411 diff changeset	78 " movq %%mm4,%%mm5\n" /* mm5 = e\|f\|g\|h */
539 a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	79
1612 97d0966f4bf7 Fixed some ultra-pedantic gcc warnings Sam Lantinga <slouken@libsdl.org> parents: 1411 diff changeset	80 " pmullw %%mm0,%%mm4\n" /* mm4 = l(ev)\|l(fv)\|l(gv)\|l(hv) */
539 a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	81
1612 97d0966f4bf7 Fixed some ultra-pedantic gcc warnings Sam Lantinga <slouken@libsdl.org> parents: 1411 diff changeset	82 " pmulhw %%mm0,%%mm5\n" /* mm5 = h(ev)\|h(fv)\|h(gv)\|h(hv) */
97d0966f4bf7 Fixed some ultra-pedantic gcc warnings Sam Lantinga <slouken@libsdl.org> parents: 1411 diff changeset	83 " movq %%mm1,%%mm3\n" /* mm3 = l(av)\|l(bv)\|l(cv)\|l(dv) */
539 a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	84
1612 97d0966f4bf7 Fixed some ultra-pedantic gcc warnings Sam Lantinga <slouken@libsdl.org> parents: 1411 diff changeset	85 " punpckhwd %%mm2,%%mm1\n" /* mm1 = av\|bv */
539 a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	86
1612 97d0966f4bf7 Fixed some ultra-pedantic gcc warnings Sam Lantinga <slouken@libsdl.org> parents: 1411 diff changeset	87 " movq %%mm4,%%mm6\n" /* mm6 = l(ev)\|l(fv)\|l(gv)\|l(hv) */
97d0966f4bf7 Fixed some ultra-pedantic gcc warnings Sam Lantinga <slouken@libsdl.org> parents: 1411 diff changeset	88 " punpcklwd %%mm2,%%mm3\n" /* mm3 = cv\|dv */
539 a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	89
1612 97d0966f4bf7 Fixed some ultra-pedantic gcc warnings Sam Lantinga <slouken@libsdl.org> parents: 1411 diff changeset	90 " punpckhwd %%mm5,%%mm4\n" /* mm4 = ef\|fv */
539 a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	91
1612 97d0966f4bf7 Fixed some ultra-pedantic gcc warnings Sam Lantinga <slouken@libsdl.org> parents: 1411 diff changeset	92 " punpcklwd %%mm5,%%mm6\n" /* mm6 = gv\|hv */
539 a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	93
1612 97d0966f4bf7 Fixed some ultra-pedantic gcc warnings Sam Lantinga <slouken@libsdl.org> parents: 1411 diff changeset	94 /* pr� charger le buffer dst dans mm5 */
97d0966f4bf7 Fixed some ultra-pedantic gcc warnings Sam Lantinga <slouken@libsdl.org> parents: 1411 diff changeset	95 " movq 8(%0),%%mm5\n" /* mm5 = dst[1] */
539 a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	96
1612 97d0966f4bf7 Fixed some ultra-pedantic gcc warnings Sam Lantinga <slouken@libsdl.org> parents: 1411 diff changeset	97 /* diviser par 128 */
97d0966f4bf7 Fixed some ultra-pedantic gcc warnings Sam Lantinga <slouken@libsdl.org> parents: 1411 diff changeset	98 " psrad $7,%%mm1\n" /* mm1 = av/128\|bv/128 , 128 = SDL_MIX_MAXVOLUME */
887 b4b64bb88f2f Date: Mon, 10 May 2004 10:17:46 -0400 Sam Lantinga <slouken@libsdl.org> parents: 539 diff changeset	99 " add $16,%1\n"
539 a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	100
1612 97d0966f4bf7 Fixed some ultra-pedantic gcc warnings Sam Lantinga <slouken@libsdl.org> parents: 1411 diff changeset	101 " psrad $7,%%mm3\n" /* mm3 = cv/128\|dv/128 */
539 a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	102
1612 97d0966f4bf7 Fixed some ultra-pedantic gcc warnings Sam Lantinga <slouken@libsdl.org> parents: 1411 diff changeset	103 " psrad $7,%%mm4\n" /* mm4 = ev/128\|fv/128 */
539 a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	104
1612 97d0966f4bf7 Fixed some ultra-pedantic gcc warnings Sam Lantinga <slouken@libsdl.org> parents: 1411 diff changeset	105 /* mm1 = le sample avec le volume modifi� */
97d0966f4bf7 Fixed some ultra-pedantic gcc warnings Sam Lantinga <slouken@libsdl.org> parents: 1411 diff changeset	106 " packssdw %%mm1,%%mm3\n" /* mm3 = s(av\|bv\|cv\|dv) */
539 a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	107
1612 97d0966f4bf7 Fixed some ultra-pedantic gcc warnings Sam Lantinga <slouken@libsdl.org> parents: 1411 diff changeset	108 " psrad $7,%%mm6\n" /* mm6= gv/128\|hv/128 */
97d0966f4bf7 Fixed some ultra-pedantic gcc warnings Sam Lantinga <slouken@libsdl.org> parents: 1411 diff changeset	109 " paddsw %%mm7,%%mm3\n" /* mm3 = adjust_volume(src)+dst */
539 a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	110
1612 97d0966f4bf7 Fixed some ultra-pedantic gcc warnings Sam Lantinga <slouken@libsdl.org> parents: 1411 diff changeset	111 /* mm4 = le sample avec le volume modifi� */
97d0966f4bf7 Fixed some ultra-pedantic gcc warnings Sam Lantinga <slouken@libsdl.org> parents: 1411 diff changeset	112 " packssdw %%mm4,%%mm6\n" /* mm6 = s(ev\|fv\|gv\|hv) */
887 b4b64bb88f2f Date: Mon, 10 May 2004 10:17:46 -0400 Sam Lantinga <slouken@libsdl.org> parents: 539 diff changeset	113 " movq %%mm3,(%0)\n"
539 a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	114
1612 97d0966f4bf7 Fixed some ultra-pedantic gcc warnings Sam Lantinga <slouken@libsdl.org> parents: 1411 diff changeset	115 " paddsw %%mm5,%%mm6\n" /* mm6 = adjust_volume(src)+dst */
539 a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	116
887 b4b64bb88f2f Date: Mon, 10 May 2004 10:17:46 -0400 Sam Lantinga <slouken@libsdl.org> parents: 539 diff changeset	117 " movq %%mm6,8(%0)\n"
539 a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	118
887 b4b64bb88f2f Date: Mon, 10 May 2004 10:17:46 -0400 Sam Lantinga <slouken@libsdl.org> parents: 539 diff changeset	119 " add $16,%0\n"
539 a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	120
887 b4b64bb88f2f Date: Mon, 10 May 2004 10:17:46 -0400 Sam Lantinga <slouken@libsdl.org> parents: 539 diff changeset	121 " dec %%edx\n"
539 a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	122
a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	123 " jnz .mixloopS16\n"
a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	124
a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	125 " emms\n"
a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	126
a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	127 ".endS16:\n"
a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	128 :
887 b4b64bb88f2f Date: Mon, 10 May 2004 10:17:46 -0400 Sam Lantinga <slouken@libsdl.org> parents: 539 diff changeset	129 : "r" (dst), "r"(src),"m"(size),
539 a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	130 "m"(volume)
887 b4b64bb88f2f Date: Mon, 10 May 2004 10:17:46 -0400 Sam Lantinga <slouken@libsdl.org> parents: 539 diff changeset	131 : "eax","edx","memory"
539 a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	132 );
a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	133 }
a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	134
a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	135
a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	136
1612 97d0966f4bf7 Fixed some ultra-pedantic gcc warnings Sam Lantinga <slouken@libsdl.org> parents: 1411 diff changeset	137 /////////////////////////////////////////////// /
97d0966f4bf7 Fixed some ultra-pedantic gcc warnings Sam Lantinga <slouken@libsdl.org> parents: 1411 diff changeset	138 /* Mixing for 8 bit signed buffers */
97d0966f4bf7 Fixed some ultra-pedantic gcc warnings Sam Lantinga <slouken@libsdl.org> parents: 1411 diff changeset	139 /////////////////////////////////////////////// /
539 a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	140
a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	141 void SDL_MixAudio_MMX_S8(char* dst,char* src,unsigned int size,int volume)
a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	142 {
a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	143 __asm__ __volatile__ (
a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	144
1612 97d0966f4bf7 Fixed some ultra-pedantic gcc warnings Sam Lantinga <slouken@libsdl.org> parents: 1411 diff changeset	145 " movl %3,%%eax\n" /* eax = volume */
539 a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	146
1147 b580f7201543 From: "Alex Volkov" <avcp-sdlmail@usa.net> Ryan C. Gordon <icculus@icculus.org> parents: 1019 diff changeset	147 " movd %%eax,%%mm0\n"
539 a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	148 " movq %%mm0,%%mm1\n"
a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	149 " psllq $16,%%mm0\n"
a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	150 " por %%mm1,%%mm0\n"
a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	151 " psllq $16,%%mm0\n"
a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	152 " por %%mm1,%%mm0\n"
a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	153 " psllq $16,%%mm0\n"
a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	154 " por %%mm1,%%mm0\n"
a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	155
1612 97d0966f4bf7 Fixed some ultra-pedantic gcc warnings Sam Lantinga <slouken@libsdl.org> parents: 1411 diff changeset	156 " movl %2,%%edx\n" /* edx = size */
97d0966f4bf7 Fixed some ultra-pedantic gcc warnings Sam Lantinga <slouken@libsdl.org> parents: 1411 diff changeset	157 " shr $3,%%edx\n" /* process 8 bytes per iteration = 8 samples */
539 a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	158
887 b4b64bb88f2f Date: Mon, 10 May 2004 10:17:46 -0400 Sam Lantinga <slouken@libsdl.org> parents: 539 diff changeset	159 " cmp $0,%%edx\n"
539 a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	160 " je .endS8\n"
a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	161
1411 efb34e597d21 Fixed assembly alignment error on Intel Macs. Sam Lantinga <slouken@libsdl.org> parents: 1402 diff changeset	162 ".align 8\n"
539 a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	163 " .mixloopS8:\n"
a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	164
1612 97d0966f4bf7 Fixed some ultra-pedantic gcc warnings Sam Lantinga <slouken@libsdl.org> parents: 1411 diff changeset	165 " pxor %%mm2,%%mm2\n" /* mm2 = 0 */
97d0966f4bf7 Fixed some ultra-pedantic gcc warnings Sam Lantinga <slouken@libsdl.org> parents: 1411 diff changeset	166 " movq (%1),%%mm1\n" /* mm1 = a\|b\|c\|d\|e\|f\|g\|h */
539 a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	167
1612 97d0966f4bf7 Fixed some ultra-pedantic gcc warnings Sam Lantinga <slouken@libsdl.org> parents: 1411 diff changeset	168 " movq %%mm1,%%mm3\n" /* mm3 = a\|b\|c\|d\|e\|f\|g\|h */
539 a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	169
1612 97d0966f4bf7 Fixed some ultra-pedantic gcc warnings Sam Lantinga <slouken@libsdl.org> parents: 1411 diff changeset	170 /* on va faire le "sign extension" en faisant un cmp avec 0 qui retourne 1 si <0, 0 si >0 */
97d0966f4bf7 Fixed some ultra-pedantic gcc warnings Sam Lantinga <slouken@libsdl.org> parents: 1411 diff changeset	171 " pcmpgtb %%mm1,%%mm2\n" /* mm2 = 11111111\|00000000\|00000000.... */
539 a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	172
1612 97d0966f4bf7 Fixed some ultra-pedantic gcc warnings Sam Lantinga <slouken@libsdl.org> parents: 1411 diff changeset	173 " punpckhbw %%mm2,%%mm1\n" /* mm1 = 0\|a\|0\|b\|0\|c\|0\|d */
539 a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	174
1612 97d0966f4bf7 Fixed some ultra-pedantic gcc warnings Sam Lantinga <slouken@libsdl.org> parents: 1411 diff changeset	175 " punpcklbw %%mm2,%%mm3\n" /* mm3 = 0\|e\|0\|f\|0\|g\|0\|h */
97d0966f4bf7 Fixed some ultra-pedantic gcc warnings Sam Lantinga <slouken@libsdl.org> parents: 1411 diff changeset	176 " movq (%0),%%mm2\n" /* mm2 = destination */
539 a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	177
1612 97d0966f4bf7 Fixed some ultra-pedantic gcc warnings Sam Lantinga <slouken@libsdl.org> parents: 1411 diff changeset	178 " pmullw %%mm0,%%mm1\n" /* mm1 = va\|vb\|vc\|vd */
887 b4b64bb88f2f Date: Mon, 10 May 2004 10:17:46 -0400 Sam Lantinga <slouken@libsdl.org> parents: 539 diff changeset	179 " add $8,%1\n"
539 a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	180
1612 97d0966f4bf7 Fixed some ultra-pedantic gcc warnings Sam Lantinga <slouken@libsdl.org> parents: 1411 diff changeset	181 " pmullw %%mm0,%%mm3\n" /* mm3 = ve\|vf\|vg\|vh */
97d0966f4bf7 Fixed some ultra-pedantic gcc warnings Sam Lantinga <slouken@libsdl.org> parents: 1411 diff changeset	182 " psraw $7,%%mm1\n" /* mm1 = va/128\|vb/128\|vc/128\|vd/128 */
539 a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	183
1612 97d0966f4bf7 Fixed some ultra-pedantic gcc warnings Sam Lantinga <slouken@libsdl.org> parents: 1411 diff changeset	184 " psraw $7,%%mm3\n" /* mm3 = ve/128\|vf/128\|vg/128\|vh/128 */
539 a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	185
1612 97d0966f4bf7 Fixed some ultra-pedantic gcc warnings Sam Lantinga <slouken@libsdl.org> parents: 1411 diff changeset	186 " packsswb %%mm1,%%mm3\n" /* mm1 = va/128\|vb/128\|vc/128\|vd/128\|ve/128\|vf/128\|vg/128\|vh/128 */
539 a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	187
1612 97d0966f4bf7 Fixed some ultra-pedantic gcc warnings Sam Lantinga <slouken@libsdl.org> parents: 1411 diff changeset	188 " paddsb %%mm2,%%mm3\n" /* add to destination buffer */
539 a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	189
1612 97d0966f4bf7 Fixed some ultra-pedantic gcc warnings Sam Lantinga <slouken@libsdl.org> parents: 1411 diff changeset	190 " movq %%mm3,(%0)\n" /* store back to ram */
887 b4b64bb88f2f Date: Mon, 10 May 2004 10:17:46 -0400 Sam Lantinga <slouken@libsdl.org> parents: 539 diff changeset	191 " add $8,%0\n"
539 a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	192
887 b4b64bb88f2f Date: Mon, 10 May 2004 10:17:46 -0400 Sam Lantinga <slouken@libsdl.org> parents: 539 diff changeset	193 " dec %%edx\n"
539 a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	194
a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	195 " jnz .mixloopS8\n"
a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	196
a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	197 ".endS8:\n"
a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	198 " emms\n"
a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	199 :
887 b4b64bb88f2f Date: Mon, 10 May 2004 10:17:46 -0400 Sam Lantinga <slouken@libsdl.org> parents: 539 diff changeset	200 : "r" (dst), "r"(src),"m"(size),
539 a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	201 "m"(volume)
887 b4b64bb88f2f Date: Mon, 10 May 2004 10:17:46 -0400 Sam Lantinga <slouken@libsdl.org> parents: 539 diff changeset	202 : "eax","edx","memory"
539 a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	203 );
a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	204 }
a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	205 #endif
a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!) Sam Lantinga <slouken@libsdl.org> parents: diff changeset	206

Mercurial > sdl-ios-xcode

annotate src/audio/SDL_mixer_MMX.c @ 1621:f12379c41042