Mercurial > sdl-ios-xcode

annotate src/audio/SDL_mixer_MMX_VC.c @ 1687:d36048e8e302 SDL-1.3

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
This trick only works for English
author Sam Lantinga <slouken@libsdl.org>
date Sun, 18 Jun 2006 13:54:27 +0000
parents 4da1ee79c9af
children a1ebb17f9c52
rev   line source
1402
d910939febfa Use consistent identifiers for the various platforms we support.
Sam Lantinga <slouken@libsdl.org>
parents: 1330
diff changeset
1 /*
d910939febfa Use consistent identifiers for the various platforms we support.
Sam Lantinga <slouken@libsdl.org>
parents: 1330
diff changeset
2 SDL - Simple DirectMedia Layer
d910939febfa Use consistent identifiers for the various platforms we support.
Sam Lantinga <slouken@libsdl.org>
parents: 1330
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: 1330
diff changeset
4
d910939febfa Use consistent identifiers for the various platforms we support.
Sam Lantinga <slouken@libsdl.org>
parents: 1330
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: 1330
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: 1330
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: 1330
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: 1330
diff changeset
9
d910939febfa Use consistent identifiers for the various platforms we support.
Sam Lantinga <slouken@libsdl.org>
parents: 1330
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: 1330
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: 1330
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: 1330
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: 1330
diff changeset
14
d910939febfa Use consistent identifiers for the various platforms we support.
Sam Lantinga <slouken@libsdl.org>
parents: 1330
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: 1330
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: 1330
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: 1330
diff changeset
18
d910939febfa Use consistent identifiers for the various platforms we support.
Sam Lantinga <slouken@libsdl.org>
parents: 1330
diff changeset
19 Sam Lantinga
d910939febfa Use consistent identifiers for the various platforms we support.
Sam Lantinga <slouken@libsdl.org>
parents: 1330
diff changeset
20 slouken@libsdl.org
d910939febfa Use consistent identifiers for the various platforms we support.
Sam Lantinga <slouken@libsdl.org>
parents: 1330
diff changeset
21 */
d910939febfa Use consistent identifiers for the various platforms we support.
Sam Lantinga <slouken@libsdl.org>
parents: 1330
diff changeset
22 #include "SDL_config.h"
1330
450721ad5436 It's now possible to build SDL without any C runtime at all on Windows,
Sam Lantinga <slouken@libsdl.org>
parents: 1190
diff changeset
23
450721ad5436 It's now possible to build SDL without any C runtime at all on Windows,
Sam Lantinga <slouken@libsdl.org>
parents: 1190
diff changeset
24 #include "SDL_mixer_MMX_VC.h"
450721ad5436 It's now possible to build SDL without any C runtime at all on Windows,
Sam Lantinga <slouken@libsdl.org>
parents: 1190
diff changeset
25
1442
e3242177fe4a Updated OS/2 build, yay!
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
26 #if ((defined(_MSC_VER) && defined(_M_IX86)) || defined(__WATCOMC__)) && defined(SDL_ASSEMBLY_ROUTINES)
574
64fe373be3dc Cth converted the MMX audio mixing routines to VC++ syntax
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
27 // MMX assembler version of SDL_MixAudio for signed little endian 16 bit samples and signed 8 bit samples
64fe373be3dc Cth converted the MMX audio mixing routines to VC++ syntax
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
28 // Copyright 2002 Stephane Marchesin (stephane.marchesin@wanadoo.fr)
64fe373be3dc Cth converted the MMX audio mixing routines to VC++ syntax
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
29 // Converted to Intel ASM notation by Cth
64fe373be3dc Cth converted the MMX audio mixing routines to VC++ syntax
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
30 // This code is licensed under the LGPL (see COPYING for details)
64fe373be3dc Cth converted the MMX audio mixing routines to VC++ syntax
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
31 //
64fe373be3dc Cth converted the MMX audio mixing routines to VC++ syntax
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
32 // Assumes buffer size in bytes is a multiple of 16
64fe373be3dc Cth converted the MMX audio mixing routines to VC++ syntax
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
33 // Assumes SDL_MIX_MAXVOLUME = 128
64fe373be3dc Cth converted the MMX audio mixing routines to VC++ syntax
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
34
64fe373be3dc Cth converted the MMX audio mixing routines to VC++ syntax
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
35
64fe373be3dc Cth converted the MMX audio mixing routines to VC++ syntax
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
36 ////////////////////////////////////////////////
64fe373be3dc Cth converted the MMX audio mixing routines to VC++ syntax
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
37 // Mixing for 16 bit signed buffers
64fe373be3dc Cth converted the MMX audio mixing routines to VC++ syntax
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
38 ////////////////////////////////////////////////
64fe373be3dc Cth converted the MMX audio mixing routines to VC++ syntax
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
39
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
40 void
1668
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1662
diff changeset
41 SDL_MixAudio_MMX_S16_VC(char *dst, char *src, unsigned int nSize, int volume)
574
64fe373be3dc Cth converted the MMX audio mixing routines to VC++ syntax
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
42 {
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
43 __asm {
574
64fe373be3dc Cth converted the MMX audio mixing routines to VC++ syntax
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
44
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
45 push edi push esi push ebx mov edi, dst // edi = dst
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
46 mov esi, src // esi = src
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
47 mov eax, volume // eax = volume
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
48 mov ebx, nSize // ebx = size
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
49 shr ebx, 4 // process 16 bytes per iteration = 8 samples
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
50 jz endS16 pxor mm0, mm0 movd mm0, eax //%%eax,%%mm0
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
51 movq mm1, mm0 //%%mm0,%%mm1
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
52 psllq mm0, 16 //$16,%%mm0
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
53 por mm0, mm1 //%%mm1,%%mm0
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
54 psllq mm0, 16 //$16,%%mm0
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
55 por mm0, mm1 //%%mm1,%%mm0
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
56 psllq mm0, 16 //$16,%%mm0
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
57 por mm0, mm1 //%%mm1,%%mm0 // mm0 = vol|vol|vol|vol
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
58 #ifndef __WATCOMC__
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
59 align 16
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
60 #endif
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
61 mixloopS16:movq mm1,[esi] //(%%esi),%%mm1\n" // mm1 = a|b|c|d
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
62 movq mm2, mm1 //%%mm1,%%mm2\n" // mm2 = a|b|c|d
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
63 movq mm4,[esi + 8] //8(%%esi),%%mm4\n" // mm4 = e|f|g|h
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
64 // pre charger le buffer dst dans mm7
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
65 movq mm7,[edi] //(%%edi),%%mm7\n" // mm7 = dst[0]"
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
66 // multiplier par le volume
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
67 pmullw mm1, mm0 //%%mm0,%%mm1\n" // mm1 = l(a*v)|l(b*v)|l(c*v)|l(d*v)
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
68 pmulhw mm2, mm0 //%%mm0,%%mm2\n" // mm2 = h(a*v)|h(b*v)|h(c*v)|h(d*v)
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
69 movq mm5, mm4 //%%mm4,%%mm5\n" // mm5 = e|f|g|h
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
70 pmullw mm4, mm0 //%%mm0,%%mm4\n" // mm4 = l(e*v)|l(f*v)|l(g*v)|l(h*v)
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
71 pmulhw mm5, mm0 //%%mm0,%%mm5\n" // mm5 = h(e*v)|h(f*v)|h(g*v)|h(h*v)
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
72 movq mm3, mm1 //%%mm1,%%mm3\n" // mm3 = l(a*v)|l(b*v)|l(c*v)|l(d*v)
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
73 punpckhwd mm1, mm2 //%%mm2,%%mm1\n" // mm1 = a*v|b*v
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
74 movq mm6, mm4 //%%mm4,%%mm6\n" // mm6 = l(e*v)|l(f*v)|l(g*v)|l(h*v)
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
75 punpcklwd mm3, mm2 //%%mm2,%%mm3\n" // mm3 = c*v|d*v
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
76 punpckhwd mm4, mm5 //%%mm5,%%mm4\n" // mm4 = e*f|f*v
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
77 punpcklwd mm6, mm5 //%%mm5,%%mm6\n" // mm6 = g*v|h*v
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
78 // pre charger le buffer dst dans mm5
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
79 movq mm5,[edi + 8] //8(%%edi),%%mm5\n" // mm5 = dst[1]
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
80 // diviser par 128
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
81 psrad mm1, 7 //$7,%%mm1\n" // mm1 = a*v/128|b*v/128 , 128 = SDL_MIX_MAXVOLUME
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
82 add esi, 16 //$16,%%esi\n"
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
83 psrad mm3, 7 //$7,%%mm3\n" // mm3 = c*v/128|d*v/128
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
84 psrad mm4, 7 //$7,%%mm4\n" // mm4 = e*v/128|f*v/128
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
85 // mm1 = le sample avec le volume modifie
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
86 packssdw mm3, mm1 //%%mm1,%%mm3\n" // mm3 = s(a*v|b*v|c*v|d*v)
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
87 psrad mm6, 7 //$7,%%mm6\n" // mm6= g*v/128|h*v/128
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
88 paddsw mm3, mm7 //%%mm7,%%mm3\n" // mm3 = adjust_volume(src)+dst
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
89 // mm4 = le sample avec le volume modifie
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
90 packssdw mm6, mm4 //%%mm4,%%mm6\n" // mm6 = s(e*v|f*v|g*v|h*v)
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
91 movq[edi], mm3 //%%mm3,(%%edi)\n"
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
92 paddsw mm6, mm5 //%%mm5,%%mm6\n" // mm6 = adjust_volume(src)+dst
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
93 movq[edi + 8], mm6 //%%mm6,8(%%edi)\n"
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
94 add edi, 16 //$16,%%edi\n"
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
95 dec ebx //%%ebx\n"
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
96 jnz mixloopS16 ends16:emms pop ebx pop esi pop edi}
574
64fe373be3dc Cth converted the MMX audio mixing routines to VC++ syntax
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
97
64fe373be3dc Cth converted the MMX audio mixing routines to VC++ syntax
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
98 }
64fe373be3dc Cth converted the MMX audio mixing routines to VC++ syntax
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
99
64fe373be3dc Cth converted the MMX audio mixing routines to VC++ syntax
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
100 ////////////////////////////////////////////////
64fe373be3dc Cth converted the MMX audio mixing routines to VC++ syntax
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
101 // Mixing for 8 bit signed buffers
64fe373be3dc Cth converted the MMX audio mixing routines to VC++ syntax
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
102 ////////////////////////////////////////////////
64fe373be3dc Cth converted the MMX audio mixing routines to VC++ syntax
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
103
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
104 void
1668
4da1ee79c9af more tweaking indent options
Sam Lantinga <slouken@libsdl.org>
parents: 1662
diff changeset
105 SDL_MixAudio_MMX_S8_VC(char *dst, char *src, unsigned int nSize, int volume)
574
64fe373be3dc Cth converted the MMX audio mixing routines to VC++ syntax
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
106 {
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
107 _asm {
574
64fe373be3dc Cth converted the MMX audio mixing routines to VC++ syntax
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
108
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
109 push edi push esi push ebx mov edi, dst //movl %0,%%edi // edi = dst
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
110 mov esi, src //%1,%%esi // esi = src
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
111 mov eax, volume //%3,%%eax // eax = volume
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
112 movd mm0, eax //%%eax,%%mm0
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
113 movq mm1, mm0 //%%mm0,%%mm1
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
114 psllq mm0, 16 //$16,%%mm0
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
115 por mm0, mm1 //%%mm1,%%mm0
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
116 psllq mm0, 16 //$16,%%mm0
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
117 por mm0, mm1 //%%mm1,%%mm0
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
118 psllq mm0, 16 //$16,%%mm0
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
119 por mm0, mm1 //%%mm1,%%mm0
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
120 mov ebx, nSize //%2,%%ebx // ebx = size
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
121 shr ebx, 3 //$3,%%ebx // process 8 bytes per iteration = 8 samples
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
122 cmp ebx, 0 //$0,%%ebx
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
123 je endS8
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
124 #ifndef __WATCOMC__
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
125 align 16
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
126 #endif
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
127 mixloopS8:pxor mm2, mm2 //%%mm2,%%mm2 // mm2 = 0
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
128 movq mm1,[esi] //(%%esi),%%mm1 // mm1 = a|b|c|d|e|f|g|h
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
129 movq mm3, mm1 //%%mm1,%%mm3 // mm3 = a|b|c|d|e|f|g|h
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
130 // on va faire le "sign extension" en faisant un cmp avec 0 qui retourne 1 si <0, 0 si >0
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
131 pcmpgtb mm2, mm1 //%%mm1,%%mm2 // mm2 = 11111111|00000000|00000000....
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
132 punpckhbw mm1, mm2 //%%mm2,%%mm1 // mm1 = 0|a|0|b|0|c|0|d
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
133 punpcklbw mm3, mm2 //%%mm2,%%mm3 // mm3 = 0|e|0|f|0|g|0|h
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
134 movq mm2,[edi] //(%%edi),%%mm2 // mm2 = destination
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
135 pmullw mm1, mm0 //%%mm0,%%mm1 // mm1 = v*a|v*b|v*c|v*d
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
136 add esi, 8 //$8,%%esi
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
137 pmullw mm3, mm0 //%%mm0,%%mm3 // mm3 = v*e|v*f|v*g|v*h
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
138 psraw mm1, 7 //$7,%%mm1 // mm1 = v*a/128|v*b/128|v*c/128|v*d/128
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
139 psraw mm3, 7 //$7,%%mm3 // mm3 = v*e/128|v*f/128|v*g/128|v*h/128
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
140 packsswb mm3, mm1 //%%mm1,%%mm3 // mm1 = v*a/128|v*b/128|v*c/128|v*d/128|v*e/128|v*f/128|v*g/128|v*h/128
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
141 paddsb mm3, mm2 //%%mm2,%%mm3 // add to destination buffer
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
142 movq[edi], mm3 //%%mm3,(%%edi) // store back to ram
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
143 add edi, 8 //$8,%%edi
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
144 dec ebx //%%ebx
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
145 jnz mixloopS8 endS8:emms pop ebx pop esi pop edi}
574
64fe373be3dc Cth converted the MMX audio mixing routines to VC++ syntax
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
146 }
64fe373be3dc Cth converted the MMX audio mixing routines to VC++ syntax
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
147
1662
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
148 #endif /* SDL_ASSEMBLY_ROUTINES */
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
Sam Lantinga <slouken@libsdl.org>
parents: 1442
diff changeset
149 /* vi: set ts=4 sw=4 expandtab: */