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gecko-dev
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gecko-dev/widget/os2/nsSound.cpp

518 строки
16 KiB
C++
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/* vim: set sw=2 sts=2 et cin: */
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
/*****************************************************************************/
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#define INCL_DOS
#define INCL_WINSHELLDATA
#define INCL_MMIOOS2
#include <os2.h>
#include <mmioos2.h>
#include <mcios2.h>
#include "nsSound.h"
#include "nsIURL.h"
#include "nsNetUtil.h"
#include "nsNativeCharsetUtils.h"
NS_IMPL_ISUPPORTS2(nsSound, nsISound, nsIStreamLoaderObserver)
/*****************************************************************************/
// argument structure to pass to the background thread
typedef struct _ARGBUFFER
{
uint32_t bufLen;
char buffer[1];
} ARGBUFFER;
#ifdef DEBUG
#define DBG_MSG(x) fprintf(stderr, x "\n")
#else
#define DBG_MSG(x)
#endif
// the number of defined Mozilla events (see nsISound.idl)
#define EVENT_CNT 7
/*****************************************************************************/
// static variables
static bool sDllError = FALSE; // set if the MMOS2 dlls fail to load
static char * sSoundFiles[EVENT_CNT] = {0}; // an array of sound file names
// function pointer definitions (underscore works around redef. warning)
static HMMIO (*APIENTRY _mmioOpen)(PSZ, PMMIOINFO, ULONG);
static USHORT (*APIENTRY _mmioClose)(HMMIO, USHORT);
static ULONG (*APIENTRY _mciSendCommand)(USHORT, USHORT, ULONG, PVOID, USHORT);
// helper functions
static void initSounds(void);
static bool initDlls(void);
static void playSound(void *aArgs);
static FOURCC determineFourCC(uint32_t aDataLen, const char *aData);
/*****************************************************************************/
/* nsSound implementation */
/*****************************************************************************/
// Get the list of sound files associated with mozilla events the first time
// this class is instantiated. However, defer initialization of the MMOS2
// dlls until they're actually needed (which may be never).
nsSound::nsSound()
{
initSounds();
}
/*****************************************************************************/
nsSound::~nsSound()
{
}
/*****************************************************************************/
NS_IMETHODIMP nsSound::Init()
{
return NS_OK;
}
/*****************************************************************************/
NS_IMETHODIMP nsSound::Beep()
{
WinAlarm(HWND_DESKTOP, WA_WARNING);
return NS_OK;
}
/*****************************************************************************/
// All attempts to play a sound file should be routed through this method.
NS_IMETHODIMP nsSound::Play(nsIURL *aURL)
{
if (sDllError) {
DBG_MSG("nsSound::Play: MMOS2 initialization failed");
return NS_ERROR_FAILURE;
}
nsCOMPtr<nsIStreamLoader> loader;
return NS_NewStreamLoader(getter_AddRefs(loader), aURL, this);
}
/*****************************************************************************/
// After a sound has been loaded, start a new thread to play it.
NS_IMETHODIMP nsSound::OnStreamComplete(nsIStreamLoader *aLoader,
nsISupports *context,
nsresult aStatus,
uint32_t dataLen,
const uint8_t *data)
{
if (NS_FAILED(aStatus)) {
#ifdef DEBUG
if (aLoader) {
nsCOMPtr<nsIRequest> request;
aLoader->GetRequest(getter_AddRefs(request));
if (request) {
nsCOMPtr<nsIURI> uri;
nsCOMPtr<nsIChannel> channel = do_QueryInterface(request);
if (channel) {
channel->GetURI(getter_AddRefs(uri));
if (uri) {
nsAutoCString uriSpec;
uri->GetSpec(uriSpec);
fprintf(stderr, "nsSound::OnStreamComplete: failed to load %s\n",
uriSpec.get());
}
}
}
}
#endif
return NS_ERROR_FAILURE;
}
// allocate a buffer to hold the ARGBUFFER struct and sound data;
// try using high-memory - if that fails, try low-memory
ARGBUFFER * arg;
if (DosAllocMem((PPVOID)&arg, sizeof(ARGBUFFER) + dataLen,
OBJ_ANY | PAG_READ | PAG_WRITE | PAG_COMMIT)) {
if (DosAllocMem((PPVOID)&arg, sizeof(ARGBUFFER) + dataLen,
PAG_READ | PAG_WRITE | PAG_COMMIT)) {
DBG_MSG("nsSound::OnStreamComplete: DosAllocMem failed");
return NS_ERROR_FAILURE;
}
}
// copy the sound data
arg->bufLen = dataLen;
memcpy(arg->buffer, data, dataLen);
// Play the sound on a new thread using MMOS2
if (_beginthread(playSound, NULL, 32768, (void*)arg) < 0) {
DosFreeMem((void*)arg);
DBG_MSG("nsSound::OnStreamComplete: _beginthread failed");
}
return NS_OK;
}
/*****************************************************************************/
// This is obsolete and shouldn't get called (in theory).
NS_IMETHODIMP nsSound::PlaySystemSound(const nsAString &aSoundAlias)
{
if (aSoundAlias.IsEmpty())
return NS_OK;
if (NS_IsMozAliasSound(aSoundAlias)) {
DBG_MSG("nsISound::playSystemSound was called with \"_moz_\" events, "
"they are obsolete, use nsISound::playEventSound instead");
uint32_t eventId;
if (aSoundAlias.Equals(NS_SYSSOUND_MAIL_BEEP)) {
eventId = EVENT_NEW_MAIL_RECEIVED;
} else if (aSoundAlias.Equals(NS_SYSSOUND_ALERT_DIALOG)) {
eventId = EVENT_ALERT_DIALOG_OPEN;
} else if (aSoundAlias.Equals(NS_SYSSOUND_CONFIRM_DIALOG)) {
eventId = EVENT_CONFIRM_DIALOG_OPEN;
} else if (aSoundAlias.Equals(NS_SYSSOUND_PROMPT_DIALOG)) {
eventId = EVENT_PROMPT_DIALOG_OPEN;
} else if (aSoundAlias.Equals(NS_SYSSOUND_SELECT_DIALOG)) {
eventId = EVENT_SELECT_DIALOG_OPEN;
} else if (aSoundAlias.Equals(NS_SYSSOUND_MENU_EXECUTE)) {
eventId = EVENT_MENU_EXECUTE;
} else if (aSoundAlias.Equals(NS_SYSSOUND_MENU_POPUP)) {
eventId = EVENT_MENU_POPUP;
} else {
return NS_OK;
}
return PlayEventSound(eventId);
}
// assume aSoundAlias is a file name
return PlaySoundFile(aSoundAlias);
}
/*****************************************************************************/
// Attempt to play whatever event sounds the user has enabled.
// If the attempt fails or a sound isn't set, fall back to a
// beep for selected events.
NS_IMETHODIMP nsSound::PlayEventSound(uint32_t aEventId)
{
if (!sDllError &&
aEventId < EVENT_CNT &&
sSoundFiles[aEventId] &&
NS_SUCCEEDED(PlaySoundFile(
nsDependentCString(sSoundFiles[aEventId])))) {
return NS_OK;
}
switch(aEventId) {
case EVENT_NEW_MAIL_RECEIVED:
return Beep(); // play "Warning" sound
case EVENT_ALERT_DIALOG_OPEN:
WinAlarm(HWND_DESKTOP, WA_ERROR); // play "Error" sound
break;
case EVENT_CONFIRM_DIALOG_OPEN:
WinAlarm(HWND_DESKTOP, WA_NOTE); // play "Information" sound
break;
case EVENT_PROMPT_DIALOG_OPEN:
case EVENT_SELECT_DIALOG_OPEN:
case EVENT_MENU_EXECUTE:
case EVENT_MENU_POPUP:
break;
}
return NS_OK;
}
/*****************************************************************************/
// Convert a UCS file path to native charset, then play it.
nsresult nsSound::PlaySoundFile(const nsAString &aSoundFile)
{
nsAutoCString buf;
nsresult rv = NS_CopyUnicodeToNative(aSoundFile, buf);
NS_ENSURE_SUCCESS(rv,rv);
return PlaySoundFile(buf);
}
/*****************************************************************************/
// Take a native charset path, convert it to a file URL, then play the file.
nsresult nsSound::PlaySoundFile(const nsACString &aSoundFile)
{
nsresult rv;
nsCOMPtr <nsIFile> soundFile;
rv = NS_NewNativeLocalFile(aSoundFile, false,
getter_AddRefs(soundFile));
NS_ENSURE_SUCCESS(rv,rv);
nsCOMPtr <nsIURI> fileURI;
rv = NS_NewFileURI(getter_AddRefs(fileURI), soundFile);
NS_ENSURE_SUCCESS(rv,rv);
nsCOMPtr<nsIFileURL> fileURL = do_QueryInterface(fileURI,&rv);
NS_ENSURE_SUCCESS(rv,rv);
return Play(fileURL);
}
/*****************************************************************************/
/* static helper functions */
/*****************************************************************************/
// This function loads the names of sound files associated with Mozilla
// events from mmpm.ini. Because of the overhead, it only makes one
// attempt per session and caches the results.
//
// Mozilla event sounds can be added to mmpm.ini via a REXX script,
// and can be edited using the 'Sound' object in the System Setup folder.
// mmpm.ini entries have this format: [fq_path#event_name#volume]
// 'fq_path' identifies the file; 'event_name' is the description that
// appears in the Sound object's listbox; 'volume' is a numeric string
// used by the WPS. Here's the REXX command to add a "New Mail" sound:
// result = SysIni('C:\MMOS2\MMPM.INI', 'MMPM2_AlarmSounds', '800',
// 'C:\MMOS2\SOUNDS\NOTES.WAV#New Mail#80');
// Note that the key value is a numeric string. The base index for
// Mozilla event keys is an arbitrary number that defaults to 800 if
// an entry for "MOZILLA_Events\BaseIndex" can't be found in mmpm.ini.
static void initSounds(void)
{
static bool sSoundInit = FALSE;
if (sSoundInit) {
return;
}
sSoundInit = TRUE;
// Confirm mmpm.ini exists where it's expected to prevent
// PrfOpenProfile() from creating a new empty file there.
FILESTATUS3 fs3;
char buffer[CCHMAXPATH];
char * ptr;
ULONG rc = DosScanEnv("MMBASE", const_cast<const char **>(&ptr));
if (!rc) {
strcpy(buffer, ptr);
ptr = strchr(buffer, ';');
if (!ptr) {
ptr = strchr(buffer, 0);
}
strcpy(ptr, "\\MMPM.INI");
rc = DosQueryPathInfo(buffer, FIL_STANDARD, &fs3, sizeof(fs3));
}
if (rc) {
ULONG ulBootDrive = 0;
strcpy(buffer, "x:\\MMOS2\\MMPM.INI");
DosQuerySysInfo( QSV_BOOT_DRIVE, QSV_BOOT_DRIVE,
&ulBootDrive, sizeof ulBootDrive);
buffer[0] = 0x40 + ulBootDrive;
rc = DosQueryPathInfo(buffer, FIL_STANDARD, &fs3, sizeof(fs3));
}
if (rc) {
DBG_MSG("initSounds: unable to locate mmpm.ini");
return;
}
HINI hini = PrfOpenProfile(0, buffer);
if (!hini) {
DBG_MSG("initSounds: unable to open mmpm.ini");
return;
}
// If a base index has been set, use it, provided it doesn't
// collide with the system-defined indices (0 - 12)
LONG baseNdx = PrfQueryProfileInt(hini, "MOZILLA_Events",
"BaseIndex", 800);
if (baseNdx <= 12) {
baseNdx = 800;
}
// For each event, see if there's an entry in mmpm.ini.
// If so, extract the file path, confirm it's valid,
// then duplicate the string & save it for later use.
for (LONG i = 0; i < EVENT_CNT; i++) {
char key[16];
ultoa(i + baseNdx, key, 10);
if (!PrfQueryProfileString(hini, "MMPM2_AlarmSounds", key,
0, buffer, sizeof(buffer))) {
continue;
}
ptr = strchr(buffer, '#');
if (!ptr || ptr == buffer) {
continue;
}
*ptr = 0;
if (DosQueryPathInfo(buffer, FIL_STANDARD, &fs3, sizeof(fs3)) ||
(fs3.attrFile & FILE_DIRECTORY) || !fs3.cbFile) {
continue;
}
sSoundFiles[i] = strdup(buffer);
}
PrfCloseProfile(hini);
return;
}
/*****************************************************************************/
// Only one attempt is made per session to initialize MMOS2. Once
// the dlls are loaded, they remain loaded to avoid stability issues.
static bool initDlls(void)
{
static bool sDllInit = FALSE;
if (sDllInit) {
return TRUE;
}
sDllInit = TRUE;
HMODULE hmodMMIO = 0;
HMODULE hmodMDM = 0;
char szError[32];
if (DosLoadModule(szError, sizeof(szError), "MMIO", &hmodMMIO) ||
DosLoadModule(szError, sizeof(szError), "MDM", &hmodMDM)) {
DBG_MSG("initDlls: DosLoadModule failed");
sDllError = TRUE;
return FALSE;
}
if (DosQueryProcAddr(hmodMMIO, 0L, "mmioOpen", (PFN *)&_mmioOpen) ||
DosQueryProcAddr(hmodMMIO, 0L, "mmioClose", (PFN *)&_mmioClose) ||
DosQueryProcAddr(hmodMDM, 0L, "mciSendCommand", (PFN *)&_mciSendCommand)) {
DBG_MSG("initDlls: DosQueryProcAddr failed");
sDllError = TRUE;
return FALSE;
}
return TRUE;
}
/*****************************************************************************/
// Background thread proc to play the sound that was set up in
// the argument structure. If an error occurs, beep at least.
// aArgs is allocated from system memory & must be freed.
static void playSound(void * aArgs)
{
BOOL fOK = FALSE;
HMMIO hmmio = 0;
MMIOINFO mi;
do {
if (!initDlls())
break;
memset(&mi, 0, sizeof(MMIOINFO));
mi.cchBuffer = ((ARGBUFFER*)aArgs)->bufLen;
mi.pchBuffer = ((ARGBUFFER*)aArgs)->buffer;
mi.ulTranslate = MMIO_TRANSLATEDATA | MMIO_TRANSLATEHEADER;
mi.fccChildIOProc = FOURCC_MEM;
mi.fccIOProc = determineFourCC(mi.cchBuffer, mi.pchBuffer);
if (!mi.fccIOProc) {
DBG_MSG("playSound: unknown sound format");
break;
}
hmmio = _mmioOpen(NULL, &mi, MMIO_READ | MMIO_DENYWRITE);
if (!hmmio) {
DBG_MSG("playSound: _mmioOpen failed");
break;
}
// open the sound device
MCI_OPEN_PARMS mop;
memset(&mop, 0, sizeof(mop));
mop.pszElementName = (PSZ)hmmio;
mop.pszDeviceType = (PSZ)MAKEULONG(MCI_DEVTYPE_WAVEFORM_AUDIO, 0);
if (_mciSendCommand(0, MCI_OPEN,
MCI_OPEN_MMIO | MCI_OPEN_TYPE_ID |
MCI_OPEN_SHAREABLE | MCI_WAIT,
(PVOID)&mop, 0)) {
DBG_MSG("playSound: MCI_OPEN failed");
break;
}
fOK = TRUE;
// play the sound
MCI_PLAY_PARMS mpp;
memset(&mpp, 0, sizeof(mpp));
if (_mciSendCommand(mop.usDeviceID, MCI_PLAY, MCI_WAIT, &mpp, 0)) {
DBG_MSG("playSound: MCI_PLAY failed");
}
// stop & close the device
_mciSendCommand(mop.usDeviceID, MCI_STOP, MCI_WAIT, &mpp, 0);
if (_mciSendCommand(mop.usDeviceID, MCI_CLOSE, MCI_WAIT, &mpp, 0)) {
DBG_MSG("playSound: MCI_CLOSE failed");
}
} while (0);
if (!fOK)
WinAlarm(HWND_DESKTOP, WA_WARNING);
if (hmmio)
_mmioClose(hmmio, 0);
DosFreeMem(aArgs);
_endthread();
}
/*****************************************************************************/
// Try to determine the data format in the buffer using file "magic".
// Returns the FourCC handle for the format, or 0 when failing to
// find format and codec.
static FOURCC determineFourCC(uint32_t aDataLen, const char *aData)
{
FOURCC fcc = 0;
// Compare the first bytes of the data with magic to determine
// the most likely format (other possible formats are ignored
// because the mmio procs for them are too unreliable)
if (memcmp(aData, "RIFF", 4) == 0) // WAV
fcc = mmioFOURCC('W', 'A', 'V', 'E');
else
if (memcmp(aData, "ID3", 3) == 0) // likely MP3 with ID3 header
fcc = mmioFOURCC('M','P','3',' ');
else
if ((aData[0] & 0xFF) == 0xFF && // various versions of MPEG layer 3
((aData[1] & 0xFE) == 0xFA || // v1
(aData[1] & 0xFE) == 0xF2 || // v2
(aData[1] & 0xFE) == 0xE2)) // v2.5
fcc = mmioFOURCC('M','P','3',' ');
else
if (memcmp(aData, "OggS", 4) == 0) // OGG
fcc = mmioFOURCC('O','G','G','S');
else
if (memcmp(aData, "fLaC", 4) == 0) // FLAC
fcc = mmioFOURCC('f','L','a','C');
return fcc;
}
/*****************************************************************************/
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