sdl-ios-xcode: src/audio/mint/SDL_mintaudio

annotate src/audio/mint/SDL_mintaudio_gsxb.c @ 3798:c8b3d3d13ed1 SDL-ryan-multiple-audio-device

Audio bootstraps can now specify that a driver is only to be used if explicitly requested (for things like the "disk" driver that is always available but you would never want to default to using). Trimmed out code that can be handled by stubs in the core. The "dummy" driver is pretty damned small now. :)

author	Ryan C. Gordon <icculus@icculus.org>
date	Wed, 04 Oct 2006 21:27:53 +0000
parents	b19680c84cdf
children	1f156fd874fa

rev	line source
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	1 /*
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	2 SDL - Simple DirectMedia Layer
769 b8d311d90021 Updated copyright information for 2004 (Happy New Year!) Sam Lantinga <slouken@libsdl.org> parents: 704 diff changeset	3 Copyright (C) 1997-2004 Sam Lantinga
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	4
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	5 This library is free software; you can redistribute it and/or
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	6 modify it under the terms of the GNU Library General Public
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	7 License as published by the Free Software Foundation; either
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	8 version 2 of the License, or (at your option) any later version.
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	9
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	10 This library is distributed in the hope that it will be useful,
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	11 but WITHOUT ANY WARRANTY; without even the implied warranty of
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	13 Library General Public License for more details.
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	14
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	15 You should have received a copy of the GNU Library General Public
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	16 License along with this library; if not, write to the Free
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	18
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	19 Sam Lantinga
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	20 slouken@libsdl.org
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	21 */
1402 d910939febfa Use consistent identifiers for the various platforms we support. Sam Lantinga <slouken@libsdl.org> parents: 1361 diff changeset	22 #include "SDL_config.h"
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	23
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	24 /*
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	25 MiNT audio driver
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	26 using XBIOS functions (GSXB compatible driver)
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	27
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	28 Patrice Mandin
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	29 */
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	30
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	31 /* Mint includes */
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	32 #include <mint/osbind.h>
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	33 #include <mint/falcon.h>
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	34 #include <mint/cookie.h>
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	35
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	36 #include "SDL_audio.h"
1361 19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: 1358 diff changeset	37 #include "../SDL_audio_c.h"
19418e4422cb New configure-based build system. Still work in progress, but much improved Sam Lantinga <slouken@libsdl.org> parents: 1358 diff changeset	38 #include "../SDL_sysaudio.h"
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	39
1412 a8181c4040b8 Fixed include files Patrice Mandin <patmandin@gmail.com> parents: 1402 diff changeset	40 #include "../../video/ataricommon/SDL_atarimxalloc_c.h"
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	41
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	42 #include "SDL_mintaudio.h"
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	43 #include "SDL_mintaudio_gsxb.h"
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	44
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	45 /--- Defines ---/
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	46
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	47 #define MINT_AUDIO_DRIVER_NAME "mint_gsxb"
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	48
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	49 /* Debug print info */
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	50 #define DEBUG_NAME "audio:gsxb: "
962 176240cf4405 Forgot to disable debug messages Patrice Mandin <patmandin@gmail.com> parents: 961 diff changeset	51 #if 0
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	52 #define DEBUG_PRINT(what) \
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	53 { \
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	54 printf what; \
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	55 }
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	56 #else
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	57 #define DEBUG_PRINT(what)
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	58 #endif
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	59
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	60 /--- Static variables ---/
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	61
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	62 static unsigned long cookie_snd, cookie_gsxb;
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	63
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	64 /--- Audio driver functions ---/
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	65
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	66 static void Mint_CloseAudio(_THIS);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	67 static int Mint_OpenAudio(_THIS, SDL_AudioSpec * spec);
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	68 static void Mint_LockAudio(_THIS);
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	69 static void Mint_UnlockAudio(_THIS);
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	70
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	71 /* To check/init hardware audio */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	72 static int Mint_CheckAudio(_THIS, SDL_AudioSpec * spec);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	73 static void Mint_InitAudio(_THIS, SDL_AudioSpec * spec);
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	74
1097 c83fa1c650dd Move GSXB callback to C source Patrice Mandin <patmandin@gmail.com> parents: 962 diff changeset	75 /* GSXB callbacks */
c83fa1c650dd Move GSXB callback to C source Patrice Mandin <patmandin@gmail.com> parents: 962 diff changeset	76 static void Mint_GsxbInterrupt(void);
c83fa1c650dd Move GSXB callback to C source Patrice Mandin <patmandin@gmail.com> parents: 962 diff changeset	77 static void Mint_GsxbNullInterrupt(void);
c83fa1c650dd Move GSXB callback to C source Patrice Mandin <patmandin@gmail.com> parents: 962 diff changeset	78
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	79 /--- Audio driver bootstrap functions ---/
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	80
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	81 static int
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	82 Audio_Available(void)
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	83 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	84 const char *envr = SDL_getenv("SDL_AUDIODRIVER");
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	85
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	86 /* Check if user asked a different audio driver */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	87 if ((envr) && (SDL_strcmp(envr, MINT_AUDIO_DRIVER_NAME) != 0)) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	88 DEBUG_PRINT((DEBUG_NAME "user asked a different audio driver\n"));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	89 return (0);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	90 }
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	91
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	92 /* Cookie _SND present ? if not, assume ST machine */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	93 if (Getcookie(C__SND, &cookie_snd) == C_NOTFOUND) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	94 cookie_snd = SND_PSG;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	95 }
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	96
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	97 /* Check if we have 16 bits audio */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	98 if ((cookie_snd & SND_16BIT) == 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	99 DEBUG_PRINT((DEBUG_NAME "no 16 bits sound\n"));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	100 return (0);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	101 }
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	102
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	103 /* Cookie GSXB present ? */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	104 cookie_gsxb = (Getcookie(C_GSXB, &cookie_gsxb) == C_FOUND);
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	105
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	106 /* Is it GSXB ? */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	107 if (((cookie_snd & SND_GSXB) == 0) \|\| (cookie_gsxb == 0)) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	108 DEBUG_PRINT((DEBUG_NAME "no GSXB audio\n"));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	109 return (0);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	110 }
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	111
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	112 /* Check if audio is lockable */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	113 if (Locksnd() != 1) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	114 DEBUG_PRINT((DEBUG_NAME "audio locked by other application\n"));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	115 return (0);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	116 }
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	117
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	118 Unlocksnd();
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	119
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	120 DEBUG_PRINT((DEBUG_NAME "GSXB audio available!\n"));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	121 return (1);
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	122 }
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	123
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	124 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	125 Audio_DeleteDevice(SDL_AudioDevice * device)
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	126 {
1336 3692456e7b0f Use SDL_ prefixed versions of C library functions. Sam Lantinga <slouken@libsdl.org> parents: 1107 diff changeset	127 SDL_free(device->hidden);
3692456e7b0f Use SDL_ prefixed versions of C library functions. Sam Lantinga <slouken@libsdl.org> parents: 1107 diff changeset	128 SDL_free(device);
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	129 }
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	130
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	131 static SDL_AudioDevice *
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	132 Audio_CreateDevice(int devindex)
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	133 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	134 SDL_AudioDevice *this;
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	135
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	136 /* Initialize all variables that we clean on shutdown */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	137 this = (SDL_AudioDevice *) SDL_malloc(sizeof(SDL_AudioDevice));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	138 if (this) {
1336 3692456e7b0f Use SDL_ prefixed versions of C library functions. Sam Lantinga <slouken@libsdl.org> parents: 1107 diff changeset	139 SDL_memset(this, 0, (sizeof *this));
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	140 this->hidden = (struct SDL_PrivateAudioData *)
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	141 SDL_malloc((sizeof *this->hidden));
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	142 }
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	143 if ((this == NULL) \|\| (this->hidden == NULL)) {
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	144 SDL_OutOfMemory();
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	145 if (this) {
1336 3692456e7b0f Use SDL_ prefixed versions of C library functions. Sam Lantinga <slouken@libsdl.org> parents: 1107 diff changeset	146 SDL_free(this);
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	147 }
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	148 return (0);
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	149 }
1336 3692456e7b0f Use SDL_ prefixed versions of C library functions. Sam Lantinga <slouken@libsdl.org> parents: 1107 diff changeset	150 SDL_memset(this->hidden, 0, (sizeof *this->hidden));
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	151
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	152 /* Set the function pointers */
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	153 this->OpenAudio = Mint_OpenAudio;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	154 this->CloseAudio = Mint_CloseAudio;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	155 this->LockAudio = Mint_LockAudio;
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	156 this->UnlockAudio = Mint_UnlockAudio;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	157 this->free = Audio_DeleteDevice;
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	158
3796 b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 2044 diff changeset	159 /* Uses interrupt driven audio, without thread */
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 2044 diff changeset	160 #if SDL_THREADS_DISABLED
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 2044 diff changeset	161 this->SkipMixerLock = 1;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 2044 diff changeset	162 #endif
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of Ryan C. Gordon <icculus@icculus.org> parents: 2044 diff changeset	163
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	164 return this;
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	165 }
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	166
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	167 AudioBootStrap MINTAUDIO_GSXB_bootstrap = {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	168 MINT_AUDIO_DRIVER_NAME, "MiNT GSXB audio driver",
3798 c8b3d3d13ed1 Audio bootstraps can now specify that a driver is only to be used if Ryan C. Gordon <icculus@icculus.org> parents: 3796 diff changeset	169 Audio_Available, Audio_CreateDevice, 0
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	170 };
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	171
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	172 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	173 Mint_LockAudio(_THIS)
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	174 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	175 /* Stop replay */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	176 Buffoper(0);
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	177 }
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	178
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	179 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	180 Mint_UnlockAudio(_THIS)
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	181 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	182 /* Restart replay */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	183 Buffoper(SB_PLA_ENA \| SB_PLA_RPT);
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	184 }
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	185
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	186 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	187 Mint_CloseAudio(_THIS)
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	188 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	189 /* Stop replay */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	190 Buffoper(0);
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	191
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	192 /* Uninstall interrupt */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	193 if (NSetinterrupt(2, SI_NONE, Mint_GsxbNullInterrupt) < 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	194 DEBUG_PRINT((DEBUG_NAME "NSetinterrupt() failed in close\n"));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	195 }
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	196
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	197 /* Wait if currently playing sound */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	198 while (SDL_MintAudio_mutex != 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	199 }
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	200
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	201 /* Clear buffers */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	202 if (SDL_MintAudio_audiobuf[0]) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	203 Mfree(SDL_MintAudio_audiobuf[0]);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	204 SDL_MintAudio_audiobuf[0] = SDL_MintAudio_audiobuf[1] = NULL;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	205 }
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	206
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	207 /* Unlock sound system */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	208 Unlocksnd();
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	209 }
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	210
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	211 static int
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	212 Mint_CheckAudio(_THIS, SDL_AudioSpec * spec)
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	213 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	214 long snd_format;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	215 int i, resolution, format_signed, format_bigendian;
2005 45af7d69f8eb MiNT audio driver cleanups for clamping types and channels to supported Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	216 SDL_AudioFormat test_format = SDL_FirstAudioFormat(spec->format);
45af7d69f8eb MiNT audio driver cleanups for clamping types and channels to supported Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	217 int valid_datatype = 0;
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	218
2005 45af7d69f8eb MiNT audio driver cleanups for clamping types and channels to supported Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	219 resolution = SDL_AUDIO_BITSIZE(spec->format);
45af7d69f8eb MiNT audio driver cleanups for clamping types and channels to supported Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	220 format_signed = SDL_AUDIO_ISSIGNED(spec->format);
45af7d69f8eb MiNT audio driver cleanups for clamping types and channels to supported Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	221 format_bigendian = SDL_AUDIO_ISBIGENDIAN(spec->format);
704 c4803992e09c Small bugfixes Patrice Mandin <patmandin@gmail.com> parents: 644 diff changeset	222
2005 45af7d69f8eb MiNT audio driver cleanups for clamping types and channels to supported Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	223 DEBUG_PRINT((DEBUG_NAME "asked: %d bits, ", resolution));
45af7d69f8eb MiNT audio driver cleanups for clamping types and channels to supported Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	224 DEBUG_PRINT(("float=%d, ", SDL_AUDIO_ISFLOAT(spec->format)));
45af7d69f8eb MiNT audio driver cleanups for clamping types and channels to supported Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	225 DEBUG_PRINT(("signed=%d, ", format_signed));
45af7d69f8eb MiNT audio driver cleanups for clamping types and channels to supported Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	226 DEBUG_PRINT(("big endian=%d, ", format_bigendian));
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	227 DEBUG_PRINT(("channels=%d, ", spec->channels));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	228 DEBUG_PRINT(("freq=%d\n", spec->freq));
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	229
2005 45af7d69f8eb MiNT audio driver cleanups for clamping types and channels to supported Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	230 if (spec->channels > 2) {
2043 adf732f1f016 Formatting update Sam Lantinga <slouken@libsdl.org> parents: 2027 diff changeset	231 spec->channels = 2; /* no more than stereo! */
2005 45af7d69f8eb MiNT audio driver cleanups for clamping types and channels to supported Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	232 }
45af7d69f8eb MiNT audio driver cleanups for clamping types and channels to supported Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	233
45af7d69f8eb MiNT audio driver cleanups for clamping types and channels to supported Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	234 while ((!valid_datatype) && (test_format)) {
2044 8d5d119b1640 Minor cleanup in the mint driver that was sitting on my laptop (sorry!). Ryan C. Gordon <icculus@icculus.org> parents: 2043 diff changeset	235 /* Check formats available */
8d5d119b1640 Minor cleanup in the mint driver that was sitting on my laptop (sorry!). Ryan C. Gordon <icculus@icculus.org> parents: 2043 diff changeset	236 snd_format = Sndstatus(SND_QUERYFORMATS);
2005 45af7d69f8eb MiNT audio driver cleanups for clamping types and channels to supported Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	237 spec->format = test_format;
2044 8d5d119b1640 Minor cleanup in the mint driver that was sitting on my laptop (sorry!). Ryan C. Gordon <icculus@icculus.org> parents: 2043 diff changeset	238 resolution = SDL_AUDIO_BITSIZE(spec->format);
8d5d119b1640 Minor cleanup in the mint driver that was sitting on my laptop (sorry!). Ryan C. Gordon <icculus@icculus.org> parents: 2043 diff changeset	239 format_signed = SDL_AUDIO_ISSIGNED(spec->format);
8d5d119b1640 Minor cleanup in the mint driver that was sitting on my laptop (sorry!). Ryan C. Gordon <icculus@icculus.org> parents: 2043 diff changeset	240 format_bigendian = SDL_AUDIO_ISBIGENDIAN(spec->format);
2005 45af7d69f8eb MiNT audio driver cleanups for clamping types and channels to supported Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	241 switch (test_format) {
2044 8d5d119b1640 Minor cleanup in the mint driver that was sitting on my laptop (sorry!). Ryan C. Gordon <icculus@icculus.org> parents: 2043 diff changeset	242 case AUDIO_U8:
8d5d119b1640 Minor cleanup in the mint driver that was sitting on my laptop (sorry!). Ryan C. Gordon <icculus@icculus.org> parents: 2043 diff changeset	243 case AUDIO_S8:
2043 adf732f1f016 Formatting update Sam Lantinga <slouken@libsdl.org> parents: 2027 diff changeset	244 if (snd_format & SND_FORMAT8) {
adf732f1f016 Formatting update Sam Lantinga <slouken@libsdl.org> parents: 2027 diff changeset	245 valid_datatype = 1;
adf732f1f016 Formatting update Sam Lantinga <slouken@libsdl.org> parents: 2027 diff changeset	246 snd_format = Sndstatus(SND_QUERY8BIT);
2005 45af7d69f8eb MiNT audio driver cleanups for clamping types and channels to supported Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	247 }
2043 adf732f1f016 Formatting update Sam Lantinga <slouken@libsdl.org> parents: 2027 diff changeset	248 break;
2044 8d5d119b1640 Minor cleanup in the mint driver that was sitting on my laptop (sorry!). Ryan C. Gordon <icculus@icculus.org> parents: 2043 diff changeset	249
8d5d119b1640 Minor cleanup in the mint driver that was sitting on my laptop (sorry!). Ryan C. Gordon <icculus@icculus.org> parents: 2043 diff changeset	250 case AUDIO_U16LSB:
8d5d119b1640 Minor cleanup in the mint driver that was sitting on my laptop (sorry!). Ryan C. Gordon <icculus@icculus.org> parents: 2043 diff changeset	251 case AUDIO_S16LSB:
8d5d119b1640 Minor cleanup in the mint driver that was sitting on my laptop (sorry!). Ryan C. Gordon <icculus@icculus.org> parents: 2043 diff changeset	252 case AUDIO_U16MSB:
8d5d119b1640 Minor cleanup in the mint driver that was sitting on my laptop (sorry!). Ryan C. Gordon <icculus@icculus.org> parents: 2043 diff changeset	253 case AUDIO_S16MSB:
2043 adf732f1f016 Formatting update Sam Lantinga <slouken@libsdl.org> parents: 2027 diff changeset	254 if (snd_format & SND_FORMAT16) {
adf732f1f016 Formatting update Sam Lantinga <slouken@libsdl.org> parents: 2027 diff changeset	255 valid_datatype = 1;
adf732f1f016 Formatting update Sam Lantinga <slouken@libsdl.org> parents: 2027 diff changeset	256 snd_format = Sndstatus(SND_QUERY16BIT);
adf732f1f016 Formatting update Sam Lantinga <slouken@libsdl.org> parents: 2027 diff changeset	257 }
adf732f1f016 Formatting update Sam Lantinga <slouken@libsdl.org> parents: 2027 diff changeset	258 break;
2044 8d5d119b1640 Minor cleanup in the mint driver that was sitting on my laptop (sorry!). Ryan C. Gordon <icculus@icculus.org> parents: 2043 diff changeset	259
8d5d119b1640 Minor cleanup in the mint driver that was sitting on my laptop (sorry!). Ryan C. Gordon <icculus@icculus.org> parents: 2043 diff changeset	260 case AUDIO_S32LSB:
8d5d119b1640 Minor cleanup in the mint driver that was sitting on my laptop (sorry!). Ryan C. Gordon <icculus@icculus.org> parents: 2043 diff changeset	261 case AUDIO_S32MSB:
2043 adf732f1f016 Formatting update Sam Lantinga <slouken@libsdl.org> parents: 2027 diff changeset	262 if (snd_format & SND_FORMAT32) {
adf732f1f016 Formatting update Sam Lantinga <slouken@libsdl.org> parents: 2027 diff changeset	263 valid_datatype = 1;
adf732f1f016 Formatting update Sam Lantinga <slouken@libsdl.org> parents: 2027 diff changeset	264 snd_format = Sndstatus(SND_QUERY32BIT);
adf732f1f016 Formatting update Sam Lantinga <slouken@libsdl.org> parents: 2027 diff changeset	265 }
adf732f1f016 Formatting update Sam Lantinga <slouken@libsdl.org> parents: 2027 diff changeset	266 break;
2044 8d5d119b1640 Minor cleanup in the mint driver that was sitting on my laptop (sorry!). Ryan C. Gordon <icculus@icculus.org> parents: 2043 diff changeset	267
8d5d119b1640 Minor cleanup in the mint driver that was sitting on my laptop (sorry!). Ryan C. Gordon <icculus@icculus.org> parents: 2043 diff changeset	268 /* no float support... */
2005 45af7d69f8eb MiNT audio driver cleanups for clamping types and channels to supported Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	269
2044 8d5d119b1640 Minor cleanup in the mint driver that was sitting on my laptop (sorry!). Ryan C. Gordon <icculus@icculus.org> parents: 2043 diff changeset	270 default:
8d5d119b1640 Minor cleanup in the mint driver that was sitting on my laptop (sorry!). Ryan C. Gordon <icculus@icculus.org> parents: 2043 diff changeset	271 test_format = SDL_NextAudioFormat();
8d5d119b1640 Minor cleanup in the mint driver that was sitting on my laptop (sorry!). Ryan C. Gordon <icculus@icculus.org> parents: 2043 diff changeset	272 break;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	273 }
2005 45af7d69f8eb MiNT audio driver cleanups for clamping types and channels to supported Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	274 }
45af7d69f8eb MiNT audio driver cleanups for clamping types and channels to supported Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	275
45af7d69f8eb MiNT audio driver cleanups for clamping types and channels to supported Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	276 if (!valid_datatype) {
45af7d69f8eb MiNT audio driver cleanups for clamping types and channels to supported Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	277 SDL_SetError("Unsupported audio format");
45af7d69f8eb MiNT audio driver cleanups for clamping types and channels to supported Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	278 return (-1);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	279 }
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	280
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	281 /* Check signed/unsigned format */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	282 if (format_signed) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	283 if (snd_format & SND_FORMATSIGNED) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	284 /* Ok */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	285 } else if (snd_format & SND_FORMATUNSIGNED) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	286 /* Give unsigned format */
2005 45af7d69f8eb MiNT audio driver cleanups for clamping types and channels to supported Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	287 spec->format = spec->format & (~SDL_AUDIO_MASK_SIGNED);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	288 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	289 } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	290 if (snd_format & SND_FORMATUNSIGNED) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	291 /* Ok */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	292 } else if (snd_format & SND_FORMATSIGNED) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	293 /* Give signed format */
2005 45af7d69f8eb MiNT audio driver cleanups for clamping types and channels to supported Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	294 spec->format \|= SDL_AUDIO_MASK_SIGNED;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	295 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	296 }
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	297
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	298 if (format_bigendian) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	299 if (snd_format & SND_FORMATBIGENDIAN) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	300 /* Ok */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	301 } else if (snd_format & SND_FORMATLITTLEENDIAN) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	302 /* Give little endian format */
2005 45af7d69f8eb MiNT audio driver cleanups for clamping types and channels to supported Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	303 spec->format = spec->format & (~SDL_AUDIO_MASK_ENDIAN);
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	304 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	305 } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	306 if (snd_format & SND_FORMATLITTLEENDIAN) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	307 /* Ok */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	308 } else if (snd_format & SND_FORMATBIGENDIAN) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	309 /* Give big endian format */
2005 45af7d69f8eb MiNT audio driver cleanups for clamping types and channels to supported Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	310 spec->format \|= SDL_AUDIO_MASK_ENDIAN;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	311 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	312 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	313
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	314 /* Calculate and select the closest frequency */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	315 MINTAUDIO_freqcount = 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	316 for (i = 1; i < 4; i++) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	317 SDL_MintAudio_AddFrequency(this,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	318 MASTERCLOCK_44K / (MASTERPREDIV_MILAN *
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	319 (1 << i)),
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	320 MASTERCLOCK_44K, (1 << i) - 1, -1);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	321 }
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	322
961 185acc07127a Date: Fri, 29 Oct 2004 11:47:09 +0200 Patrice Mandin <patmandin@gmail.com> parents: 769 diff changeset	323 #if 1
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	324 for (i = 0; i < MINTAUDIO_freqcount; i++) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	325 DEBUG_PRINT((DEBUG_NAME "freq %d: %lu Hz, clock %lu, prediv %d\n",
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	326 i, MINTAUDIO_frequencies[i].frequency,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	327 MINTAUDIO_frequencies[i].masterclock,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	328 MINTAUDIO_frequencies[i].predivisor));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	329 }
961 185acc07127a Date: Fri, 29 Oct 2004 11:47:09 +0200 Patrice Mandin <patmandin@gmail.com> parents: 769 diff changeset	330 #endif
185acc07127a Date: Fri, 29 Oct 2004 11:47:09 +0200 Patrice Mandin <patmandin@gmail.com> parents: 769 diff changeset	331
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	332 MINTAUDIO_numfreq = SDL_MintAudio_SearchFrequency(this, spec->freq);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	333 spec->freq = MINTAUDIO_frequencies[MINTAUDIO_numfreq].frequency;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	334
2043 adf732f1f016 Formatting update Sam Lantinga <slouken@libsdl.org> parents: 2027 diff changeset	335 DEBUG_PRINT((DEBUG_NAME "obtained: %d bits, ",
adf732f1f016 Formatting update Sam Lantinga <slouken@libsdl.org> parents: 2027 diff changeset	336 SDL_AUDIO_BITSIZE(spec->format)));
2005 45af7d69f8eb MiNT audio driver cleanups for clamping types and channels to supported Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	337 DEBUG_PRINT(("float=%d, ", SDL_AUDIO_ISFLOAT(spec->format)));
45af7d69f8eb MiNT audio driver cleanups for clamping types and channels to supported Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	338 DEBUG_PRINT(("signed=%d, ", SDL_AUDIO_ISSIGNED(spec->format)));
45af7d69f8eb MiNT audio driver cleanups for clamping types and channels to supported Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	339 DEBUG_PRINT(("big endian=%d, ", SDL_AUDIO_ISBIGENDIAN(spec->format)));
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	340 DEBUG_PRINT(("channels=%d, ", spec->channels));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	341 DEBUG_PRINT(("freq=%d\n", spec->freq));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	342
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	343 return 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	344 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	345
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	346 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	347 Mint_InitAudio(_THIS, SDL_AudioSpec * spec)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	348 {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	349 int channels_mode, prediv;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	350 void *buffer;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	351
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	352 /* Stop currently playing sound */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	353 Buffoper(0);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	354
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	355 /* Set replay tracks */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	356 Settracks(0, 0);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	357 Setmontracks(0);
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	358
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	359 /* Select replay format */
2005 45af7d69f8eb MiNT audio driver cleanups for clamping types and channels to supported Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	360 switch (SDL_AUDIO_BITSIZE(spec->format)) {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	361 case 8:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	362 if (spec->channels == 2) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	363 channels_mode = STEREO8;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	364 } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	365 channels_mode = MONO8;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	366 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	367 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	368 case 16:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	369 if (spec->channels == 2) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	370 channels_mode = STEREO16;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	371 } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	372 channels_mode = MONO16;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	373 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	374 break;
2005 45af7d69f8eb MiNT audio driver cleanups for clamping types and channels to supported Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	375 case 32:
45af7d69f8eb MiNT audio driver cleanups for clamping types and channels to supported Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	376 if (spec->channels == 2) {
45af7d69f8eb MiNT audio driver cleanups for clamping types and channels to supported Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	377 channels_mode = STEREO32;
45af7d69f8eb MiNT audio driver cleanups for clamping types and channels to supported Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	378 } else {
45af7d69f8eb MiNT audio driver cleanups for clamping types and channels to supported Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	379 channels_mode = MONO32;
45af7d69f8eb MiNT audio driver cleanups for clamping types and channels to supported Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	380 }
45af7d69f8eb MiNT audio driver cleanups for clamping types and channels to supported Ryan C. Gordon <icculus@icculus.org> parents: 1895 diff changeset	381 break;
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	382 default:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	383 channels_mode = STEREO16;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	384 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	385 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	386 if (Setmode(channels_mode) < 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	387 DEBUG_PRINT((DEBUG_NAME "Setmode() failed\n"));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	388 }
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	389
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	390 prediv = MINTAUDIO_frequencies[MINTAUDIO_numfreq].predivisor;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	391 Devconnect(DMAPLAY, DAC, CLKEXT, prediv, 1);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	392
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	393 /* Set buffer */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	394 buffer = SDL_MintAudio_audiobuf[SDL_MintAudio_numbuf];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	395 if (Setbuffer(0, buffer, buffer + spec->size) < 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	396 DEBUG_PRINT((DEBUG_NAME "Setbuffer() failed\n"));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	397 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	398
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	399 /* Install interrupt */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	400 if (NSetinterrupt(2, SI_PLAY, Mint_GsxbInterrupt) < 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	401 DEBUG_PRINT((DEBUG_NAME "NSetinterrupt() failed\n"));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	402 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	403
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	404 /* Go */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	405 Buffoper(SB_PLA_ENA \| SB_PLA_RPT);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	406 DEBUG_PRINT((DEBUG_NAME "hardware initialized\n"));
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	407 }
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	408
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	409 static int
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	410 Mint_OpenAudio(_THIS, SDL_AudioSpec * spec)
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	411 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	412 /* Lock sound system */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	413 if (Locksnd() != 1) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	414 SDL_SetError("Mint_OpenAudio: Audio system already in use");
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	415 return (-1);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	416 }
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	417
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	418 SDL_MintAudio_device = this;
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	419
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	420 /* Check audio capabilities */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	421 if (Mint_CheckAudio(this, spec) == -1) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	422 return -1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	423 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	424
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	425 SDL_CalculateAudioSpec(spec);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	426
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	427 /* Allocate memory for audio buffers in DMA-able RAM */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	428 DEBUG_PRINT((DEBUG_NAME "buffer size=%d\n", spec->size));
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	429
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	430 SDL_MintAudio_audiobuf[0] = Atari_SysMalloc(spec->size * 2, MX_STRAM);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	431 if (SDL_MintAudio_audiobuf[0] == NULL) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	432 SDL_SetError("MINT_OpenAudio: Not enough memory for audio buffer");
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	433 return (-1);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	434 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	435 SDL_MintAudio_audiobuf[1] = SDL_MintAudio_audiobuf[0] + spec->size;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	436 SDL_MintAudio_numbuf = 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	437 SDL_memset(SDL_MintAudio_audiobuf[0], spec->silence, spec->size * 2);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	438 SDL_MintAudio_audiosize = spec->size;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	439 SDL_MintAudio_mutex = 0;
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	440
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	441 DEBUG_PRINT((DEBUG_NAME "buffer 0 at 0x%08x\n",
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	442 SDL_MintAudio_audiobuf[0]));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	443 DEBUG_PRINT((DEBUG_NAME "buffer 1 at 0x%08x\n",
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	444 SDL_MintAudio_audiobuf[1]));
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	445
2027 d48ead2d2ba5 Save/restore FPU registers in interrupt Patrice Mandin <patmandin@gmail.com> parents: 2005 diff changeset	446 SDL_MintAudio_CheckFpu();
d48ead2d2ba5 Save/restore FPU registers in interrupt Patrice Mandin <patmandin@gmail.com> parents: 2005 diff changeset	447
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	448 /* Setup audio hardware */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	449 Mint_InitAudio(this, spec);
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	450
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	451 return (1); /* We don't use threaded audio */
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	452 }
594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	453
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	454 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	455 Mint_GsxbInterrupt(void)
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	456 {
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	457 Uint8 *newbuf;
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	458
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	459 if (SDL_MintAudio_mutex)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	460 return;
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	461
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	462 SDL_MintAudio_mutex = 1;
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	463
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	464 SDL_MintAudio_numbuf ^= 1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	465 SDL_MintAudio_Callback();
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	466 newbuf = SDL_MintAudio_audiobuf[SDL_MintAudio_numbuf];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	467 Setbuffer(0, newbuf, newbuf + SDL_MintAudio_audiosize);
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	468
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	469 SDL_MintAudio_mutex = 0;
644 594422ab8f9f Atari MiNT: added more audio drivers Patrice Mandin <patmandin@gmail.com> parents: diff changeset	470 }
1097 c83fa1c650dd Move GSXB callback to C source Patrice Mandin <patmandin@gmail.com> parents: 962 diff changeset	471
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	472 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	473 Mint_GsxbNullInterrupt(void)
1097 c83fa1c650dd Move GSXB callback to C source Patrice Mandin <patmandin@gmail.com> parents: 962 diff changeset	474 {
c83fa1c650dd Move GSXB callback to C source Patrice Mandin <patmandin@gmail.com> parents: 962 diff changeset	475 }
c83fa1c650dd Move GSXB callback to C source Patrice Mandin <patmandin@gmail.com> parents: 962 diff changeset	476
1895 c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head. Sam Lantinga <slouken@libsdl.org> parents: 1412 diff changeset	477 /* vi: set ts=4 sw=4 expandtab: */

Mercurial > sdl-ios-xcode

annotate src/audio/mint/SDL_mintaudio_gsxb.c @ 3798:c8b3d3d13ed1 SDL-ryan-multiple-audio-device