sdl-ios-xcode: src/audio/SDL_mixer

annotate src/audio/SDL_mixer_MMX.c @ 1888:488eba319a25

------- Comment #5 From Marc Peter 2006-06-25 18:03 [reply] ------- Created an attachment (id=142) [edit] updated makefiles for 1.2.11 release The new Watcom-Win32.zip - includes the new testcursor test, and - doesn't link to dxguid.lib anymore (by defining INITGUID for SDL_dx5events.c), to fix issue with stack calling convention (-6s can now be used instead of -6r in CFLAGS). ------- Comment #6 From Marc Peter 2006-06-25 18:12 [reply] ------- Created an attachment (id=143) [edit] updated README.Watcom for 1.2.11 - lists new testcursor test - mentions possibility to build with -6s (stack calling convention) instead of -6r (register calling convention)

author	Sam Lantinga <slouken@libsdl.org>
date	Mon, 26 Jun 2006 01:33:53 +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 @ 1888:488eba319a25