diff options
Diffstat (limited to 'arm-wt-22k/lib_src/eas_public.c')
| -rw-r--r-- | arm-wt-22k/lib_src/eas_public.c | 3092 |
1 files changed, 1546 insertions, 1546 deletions
diff --git a/arm-wt-22k/lib_src/eas_public.c b/arm-wt-22k/lib_src/eas_public.c index d67ef7e..9ee6cf4 100644 --- a/arm-wt-22k/lib_src/eas_public.c +++ b/arm-wt-22k/lib_src/eas_public.c @@ -1,11 +1,11 @@ /*---------------------------------------------------------------------------- * - * File: + * File: * eas_public.c * * Contents and purpose: * Contains EAS library public interface - * + * * Copyright Sonic Network Inc. 2004 * Licensed under the Apache License, Version 2.0 (the "License"); @@ -50,7 +50,7 @@ #endif /* number of events to parse before calling EAS_HWYield function */ -#define YIELD_EVENT_COUNT 10 +#define YIELD_EVENT_COUNT 10 /*---------------------------------------------------------------------------- * easLibConfig @@ -61,23 +61,23 @@ */ static const S_EAS_LIB_CONFIG easLibConfig = { - LIB_VERSION, + LIB_VERSION, #ifdef _CHECKED_BUILD - EAS_TRUE, + EAS_TRUE, #else - EAS_FALSE, + EAS_FALSE, #endif - MAX_SYNTH_VOICES, - NUM_OUTPUT_CHANNELS, - _OUTPUT_SAMPLE_RATE, - BUFFER_SIZE_IN_MONO_SAMPLES, + MAX_SYNTH_VOICES, + NUM_OUTPUT_CHANNELS, + _OUTPUT_SAMPLE_RATE, + BUFFER_SIZE_IN_MONO_SAMPLES, #ifdef _FILTER_ENABLED - EAS_TRUE, + EAS_TRUE, #else - EAS_FALSE, + EAS_FALSE, #endif - _BUILD_TIME_, - _BUILD_VERSION_ + _BUILD_TIME_, + _BUILD_VERSION_ }; /* local prototypes */ @@ -89,20 +89,20 @@ static EAS_RESULT EAS_ParseEvents (S_EAS_DATA *pEASData, S_EAS_STREAM *pStream, * Sets the specified parameter in the stream. Allows access to * customizable settings within the individual file parsers. *---------------------------------------------------------------------------- - * pEASData - pointer to EAS persistent data object - * pStream - stream handle - * param - enumerated parameter (see eas_parser.h) - * value - new value + * pEASData - pointer to EAS persistent data object + * pStream - stream handle + * param - enumerated parameter (see eas_parser.h) + * value - new value *---------------------------------------------------------------------------- */ EAS_RESULT EAS_SetStreamParameter (S_EAS_DATA *pEASData, EAS_HANDLE pStream, EAS_I32 param, EAS_I32 value) { - S_FILE_PARSER_INTERFACE *pParserModule; + S_FILE_PARSER_INTERFACE *pParserModule; - pParserModule = (S_FILE_PARSER_INTERFACE*) pStream->pParserModule; - if (pParserModule->pfSetData) - return (*pParserModule->pfSetData)(pEASData, pStream->handle, param, value); - return EAS_ERROR_FEATURE_NOT_AVAILABLE; + pParserModule = (S_FILE_PARSER_INTERFACE*) pStream->pParserModule; + if (pParserModule->pfSetData) + return (*pParserModule->pfSetData)(pEASData, pStream->handle, param, value); + return EAS_ERROR_FEATURE_NOT_AVAILABLE; } /*---------------------------------------------------------------------------- @@ -111,20 +111,20 @@ EAS_RESULT EAS_SetStreamParameter (S_EAS_DATA *pEASData, EAS_HANDLE pStream, EAS * Sets the specified parameter in the stream. Allows access to * customizable settings within the individual file parsers. *---------------------------------------------------------------------------- - * pEASData - pointer to EAS persistent data object - * pStream - stream handle - * param - enumerated parameter (see eas_parser.h) - * pValue - pointer to variable to receive current setting + * pEASData - pointer to EAS persistent data object + * pStream - stream handle + * param - enumerated parameter (see eas_parser.h) + * pValue - pointer to variable to receive current setting *---------------------------------------------------------------------------- */ EAS_RESULT EAS_GetStreamParameter (S_EAS_DATA *pEASData, EAS_HANDLE pStream, EAS_I32 param, EAS_I32 *pValue) { - S_FILE_PARSER_INTERFACE *pParserModule; + S_FILE_PARSER_INTERFACE *pParserModule; - pParserModule = (S_FILE_PARSER_INTERFACE*) pStream->pParserModule; - if (pParserModule->pfGetData) - return (*pParserModule->pfGetData)(pEASData, pStream->handle, param, pValue); - return EAS_ERROR_FEATURE_NOT_AVAILABLE; + pParserModule = (S_FILE_PARSER_INTERFACE*) pStream->pParserModule; + if (pParserModule->pfGetData) + return (*pParserModule->pfGetData)(pEASData, pStream->handle, param, pValue); + return EAS_ERROR_FEATURE_NOT_AVAILABLE; } /*---------------------------------------------------------------------------- @@ -139,13 +139,13 @@ EAS_RESULT EAS_GetStreamParameter (S_EAS_DATA *pEASData, EAS_HANDLE pStream, EAS */ EAS_BOOL EAS_StreamReady (S_EAS_DATA *pEASData, EAS_HANDLE pStream) { - S_FILE_PARSER_INTERFACE *pParserModule; - EAS_STATE state; + S_FILE_PARSER_INTERFACE *pParserModule; + EAS_STATE state; - pParserModule = (S_FILE_PARSER_INTERFACE*) pStream->pParserModule; - if (pParserModule->pfState(pEASData, pStream->handle, &state) != EAS_SUCCESS) - return EAS_FALSE; - return (state < EAS_STATE_OPEN); + pParserModule = (S_FILE_PARSER_INTERFACE*) pStream->pParserModule; + if (pParserModule->pfState(pEASData, pStream->handle, &state) != EAS_SUCCESS) + return EAS_FALSE; + return (state < EAS_STATE_OPEN); } /*---------------------------------------------------------------------------- @@ -160,59 +160,59 @@ EAS_BOOL EAS_StreamReady (S_EAS_DATA *pEASData, EAS_HANDLE pStream) */ EAS_RESULT EAS_IntSetStrmParam (S_EAS_DATA *pEASData, EAS_HANDLE pStream, EAS_INT param, EAS_I32 value) { - S_SYNTH *pSynth; - - /* try to set the parameter using stream interface */ - if (EAS_SetStreamParameter(pEASData, pStream, param, value) == EAS_SUCCESS) - return EAS_SUCCESS; - - /* get a pointer to the synth object and set it directly */ - /*lint -e{740} we are cheating by passing a pointer through this interface */ - if (EAS_GetStreamParameter(pEASData, pStream, PARSER_DATA_SYNTH_HANDLE, (EAS_I32*) &pSynth) != EAS_SUCCESS) - return EAS_ERROR_INVALID_PARAMETER; - - if (pSynth == NULL) - return EAS_ERROR_INVALID_PARAMETER; - - switch (param) - { - -#ifdef DLS_SYNTHESIZER - case PARSER_DATA_DLS_COLLECTION: - { - EAS_RESULT result = VMSetDLSLib(pSynth, (EAS_DLSLIB_HANDLE) value); - if (result == EAS_SUCCESS) - { - DLSAddRef((S_DLS*) value); - VMInitializeAllChannels(pEASData->pVoiceMgr, pSynth); - } - return result; - } + S_SYNTH *pSynth; + + /* try to set the parameter using stream interface */ + if (EAS_SetStreamParameter(pEASData, pStream, param, value) == EAS_SUCCESS) + return EAS_SUCCESS; + + /* get a pointer to the synth object and set it directly */ + /*lint -e{740} we are cheating by passing a pointer through this interface */ + if (EAS_GetStreamParameter(pEASData, pStream, PARSER_DATA_SYNTH_HANDLE, (EAS_I32*) &pSynth) != EAS_SUCCESS) + return EAS_ERROR_INVALID_PARAMETER; + + if (pSynth == NULL) + return EAS_ERROR_INVALID_PARAMETER; + + switch (param) + { + +#ifdef DLS_SYNTHESIZER + case PARSER_DATA_DLS_COLLECTION: + { + EAS_RESULT result = VMSetDLSLib(pSynth, (EAS_DLSLIB_HANDLE) value); + if (result == EAS_SUCCESS) + { + DLSAddRef((S_DLS*) value); + VMInitializeAllChannels(pEASData->pVoiceMgr, pSynth); + } + return result; + } #endif - case PARSER_DATA_EAS_LIBRARY: - return VMSetEASLib(pSynth, (EAS_SNDLIB_HANDLE) value); - - case PARSER_DATA_POLYPHONY: - return VMSetPolyphony(pEASData->pVoiceMgr, pSynth, value); - - case PARSER_DATA_PRIORITY: - return VMSetPriority(pEASData->pVoiceMgr, pSynth, value); - - case PARSER_DATA_TRANSPOSITION: - VMSetTranposition(pSynth, value); - break; - - case PARSER_DATA_VOLUME: - VMSetVolume(pSynth, (EAS_U16) value); - break; - - default: - { /* dpp: EAS_ReportEx(_EAS_SEVERITY_ERROR, "Invalid paramter %d in call to EAS_IntSetStrmParam", param); */ } - return EAS_ERROR_INVALID_PARAMETER; - } - - return EAS_SUCCESS; + case PARSER_DATA_EAS_LIBRARY: + return VMSetEASLib(pSynth, (EAS_SNDLIB_HANDLE) value); + + case PARSER_DATA_POLYPHONY: + return VMSetPolyphony(pEASData->pVoiceMgr, pSynth, value); + + case PARSER_DATA_PRIORITY: + return VMSetPriority(pEASData->pVoiceMgr, pSynth, value); + + case PARSER_DATA_TRANSPOSITION: + VMSetTranposition(pSynth, value); + break; + + case PARSER_DATA_VOLUME: + VMSetVolume(pSynth, (EAS_U16) value); + break; + + default: + { /* dpp: EAS_ReportEx(_EAS_SEVERITY_ERROR, "Invalid paramter %d in call to EAS_IntSetStrmParam", param); */ } + return EAS_ERROR_INVALID_PARAMETER; + } + + return EAS_SUCCESS; } /*---------------------------------------------------------------------------- @@ -226,42 +226,42 @@ EAS_RESULT EAS_IntSetStrmParam (S_EAS_DATA *pEASData, EAS_HANDLE pStream, EAS_IN */ EAS_RESULT EAS_IntGetStrmParam (S_EAS_DATA *pEASData, EAS_HANDLE pStream, EAS_INT param, EAS_I32 *pValue) { - S_SYNTH *pSynth; - - /* try to set the parameter */ - if (EAS_GetStreamParameter(pEASData, pStream, param, pValue) == EAS_SUCCESS) - return EAS_SUCCESS; - - /* get a pointer to the synth object and retrieve data directly */ - /*lint -e{740} we are cheating by passing a pointer through this interface */ - if (EAS_GetStreamParameter(pEASData, pStream, PARSER_DATA_SYNTH_HANDLE, (EAS_I32*) &pSynth) != EAS_SUCCESS) - return EAS_ERROR_INVALID_PARAMETER; - - if (pSynth == NULL) - return EAS_ERROR_INVALID_PARAMETER; - - switch (param) - { - case PARSER_DATA_POLYPHONY: - return VMGetPolyphony(pEASData->pVoiceMgr, pSynth, pValue); - - case PARSER_DATA_PRIORITY: - return VMGetPriority(pEASData->pVoiceMgr, pSynth, pValue); - - case PARSER_DATA_TRANSPOSITION: - VMGetTranposition(pSynth, pValue); - break; - - case PARSER_DATA_NOTE_COUNT: - *pValue = VMGetNoteCount(pSynth); - break; - - default: - { /* dpp: EAS_ReportEx(_EAS_SEVERITY_ERROR, "Invalid paramter %d in call to EAS_IntSetStrmParam", param); */ } - return EAS_ERROR_INVALID_PARAMETER; - } - - return EAS_SUCCESS; + S_SYNTH *pSynth; + + /* try to set the parameter */ + if (EAS_GetStreamParameter(pEASData, pStream, param, pValue) == EAS_SUCCESS) + return EAS_SUCCESS; + + /* get a pointer to the synth object and retrieve data directly */ + /*lint -e{740} we are cheating by passing a pointer through this interface */ + if (EAS_GetStreamParameter(pEASData, pStream, PARSER_DATA_SYNTH_HANDLE, (EAS_I32*) &pSynth) != EAS_SUCCESS) + return EAS_ERROR_INVALID_PARAMETER; + + if (pSynth == NULL) + return EAS_ERROR_INVALID_PARAMETER; + + switch (param) + { + case PARSER_DATA_POLYPHONY: + return VMGetPolyphony(pEASData->pVoiceMgr, pSynth, pValue); + + case PARSER_DATA_PRIORITY: + return VMGetPriority(pEASData->pVoiceMgr, pSynth, pValue); + + case PARSER_DATA_TRANSPOSITION: + VMGetTranposition(pSynth, pValue); + break; + + case PARSER_DATA_NOTE_COUNT: + *pValue = VMGetNoteCount(pSynth); + break; + + default: + { /* dpp: EAS_ReportEx(_EAS_SEVERITY_ERROR, "Invalid paramter %d in call to EAS_IntSetStrmParam", param); */ } + return EAS_ERROR_INVALID_PARAMETER; + } + + return EAS_SUCCESS; } /*---------------------------------------------------------------------------- @@ -278,29 +278,29 @@ EAS_RESULT EAS_IntGetStrmParam (S_EAS_DATA *pEASData, EAS_HANDLE pStream, EAS_IN */ static EAS_INT EAS_AllocateStream (EAS_DATA_HANDLE pEASData) { - EAS_INT streamNum; - - /* check for static allocation, only one stream allowed */ - if (pEASData->staticMemoryModel) - { - if (pEASData->streams[0].handle != NULL) - { - { /* dpp: EAS_ReportEx(_EAS_SEVERITY_ERROR, "Attempt to open multiple streams in static model\n"); */ } - return -1; - } - return 0; - } - - /* dynamic model */ - for (streamNum = 0; streamNum < MAX_NUMBER_STREAMS; streamNum++) - if (pEASData->streams[streamNum].handle == NULL) - break; - if (streamNum == MAX_NUMBER_STREAMS) - { - { /* dpp: EAS_ReportEx(_EAS_SEVERITY_ERROR, "Exceeded maximum number of open streams\n"); */ } - return -1; - } - return streamNum; + EAS_INT streamNum; + + /* check for static allocation, only one stream allowed */ + if (pEASData->staticMemoryModel) + { + if (pEASData->streams[0].handle != NULL) + { + { /* dpp: EAS_ReportEx(_EAS_SEVERITY_ERROR, "Attempt to open multiple streams in static model\n"); */ } + return -1; + } + return 0; + } + + /* dynamic model */ + for (streamNum = 0; streamNum < MAX_NUMBER_STREAMS; streamNum++) + if (pEASData->streams[streamNum].handle == NULL) + break; + if (streamNum == MAX_NUMBER_STREAMS) + { + { /* dpp: EAS_ReportEx(_EAS_SEVERITY_ERROR, "Exceeded maximum number of open streams\n"); */ } + return -1; + } + return streamNum; } /*---------------------------------------------------------------------------- @@ -317,13 +317,13 @@ static EAS_INT EAS_AllocateStream (EAS_DATA_HANDLE pEASData) */ static void EAS_InitStream (S_EAS_STREAM *pStream, EAS_VOID_PTR pParserModule, EAS_VOID_PTR streamHandle) { - pStream->pParserModule = pParserModule; - pStream->handle = streamHandle; - pStream->time = 0; - pStream->frameLength = AUDIO_FRAME_LENGTH; - pStream->repeatCount = 0; - pStream->volume = DEFAULT_STREAM_VOLUME; - pStream->streamFlags = 0; + pStream->pParserModule = pParserModule; + pStream->handle = streamHandle; + pStream->time = 0; + pStream->frameLength = AUDIO_FRAME_LENGTH; + pStream->repeatCount = 0; + pStream->volume = DEFAULT_STREAM_VOLUME; + pStream->streamFlags = 0; } /*---------------------------------------------------------------------------- @@ -341,7 +341,7 @@ static void EAS_InitStream (S_EAS_STREAM *pStream, EAS_VOID_PTR pParserModule, E */ EAS_PUBLIC const S_EAS_LIB_CONFIG *EAS_Config (void) { - return &easLibConfig; + return &easLibConfig; } /*---------------------------------------------------------------------------- @@ -351,7 +351,7 @@ EAS_PUBLIC const S_EAS_LIB_CONFIG *EAS_Config (void) * Initialize the synthesizer library * * Inputs: - * ppEASData - pointer to data handle variable for this instance + * ppEASData - pointer to data handle variable for this instance * * Outputs: * @@ -359,95 +359,95 @@ EAS_PUBLIC const S_EAS_LIB_CONFIG *EAS_Config (void) */ EAS_PUBLIC EAS_RESULT EAS_Init (EAS_DATA_HANDLE *ppEASData) { - EAS_HW_DATA_HANDLE pHWInstData; - EAS_RESULT result; - S_EAS_DATA *pEASData; - EAS_INT module; - EAS_BOOL staticMemoryModel; - - /* get the memory model */ - staticMemoryModel = EAS_CMStaticMemoryModel(); - - /* initialize the host wrapper interface */ - *ppEASData = NULL; - if ((result = EAS_HWInit(&pHWInstData)) != EAS_SUCCESS) - return result; - - /* check Configuration Module for S_EAS_DATA allocation */ - if (staticMemoryModel) - pEASData = EAS_CMEnumData(EAS_CM_EAS_DATA); - else - pEASData = EAS_HWMalloc(pHWInstData, sizeof(S_EAS_DATA)); - if (!pEASData) - { - { /* dpp: EAS_ReportEx(_EAS_SEVERITY_FATAL, "Failed to allocate EAS library memory\n"); */ } - return EAS_ERROR_MALLOC_FAILED; - } - - /* initialize some data */ - EAS_HWMemSet(pEASData, 0, sizeof(S_EAS_DATA)); - pEASData->staticMemoryModel = (EAS_BOOL8) staticMemoryModel; - pEASData->hwInstData = pHWInstData; - pEASData->renderTime = 0; - - /* set header search flag */ -#ifdef FILE_HEADER_SEARCH - pEASData->searchHeaderFlag = EAS_TRUE; + EAS_HW_DATA_HANDLE pHWInstData; + EAS_RESULT result; + S_EAS_DATA *pEASData; + EAS_INT module; + EAS_BOOL staticMemoryModel; + + /* get the memory model */ + staticMemoryModel = EAS_CMStaticMemoryModel(); + + /* initialize the host wrapper interface */ + *ppEASData = NULL; + if ((result = EAS_HWInit(&pHWInstData)) != EAS_SUCCESS) + return result; + + /* check Configuration Module for S_EAS_DATA allocation */ + if (staticMemoryModel) + pEASData = EAS_CMEnumData(EAS_CM_EAS_DATA); + else + pEASData = EAS_HWMalloc(pHWInstData, sizeof(S_EAS_DATA)); + if (!pEASData) + { + { /* dpp: EAS_ReportEx(_EAS_SEVERITY_FATAL, "Failed to allocate EAS library memory\n"); */ } + return EAS_ERROR_MALLOC_FAILED; + } + + /* initialize some data */ + EAS_HWMemSet(pEASData, 0, sizeof(S_EAS_DATA)); + pEASData->staticMemoryModel = (EAS_BOOL8) staticMemoryModel; + pEASData->hwInstData = pHWInstData; + pEASData->renderTime = 0; + + /* set header search flag */ +#ifdef FILE_HEADER_SEARCH + pEASData->searchHeaderFlag = EAS_TRUE; #endif - /* initalize parameters */ - EAS_SetVolume(pEASData, NULL, DEFAULT_VOLUME); + /* initalize parameters */ + EAS_SetVolume(pEASData, NULL, DEFAULT_VOLUME); #ifdef _METRICS_ENABLED - /* initalize the metrics module */ - pEASData->pMetricsModule = EAS_CMEnumOptModules(EAS_MODULE_METRICS); - if (pEASData->pMetricsModule != NULL) - { - if ((result = (*pEASData->pMetricsModule->pfInit)(pEASData, &pEASData->pMetricsData)) != EAS_SUCCESS) - { - { /* dpp: EAS_ReportEx(_EAS_SEVERITY_ERROR, "Error %ld initializing metrics module\n", result); */ } - return result; - } - } -#endif - - /* initailize the voice manager & synthesizer */ - if ((result = VMInitialize(pEASData)) != EAS_SUCCESS) - return result; - - /* initialize mix engine */ - if ((result = EAS_MixEngineInit(pEASData)) != EAS_SUCCESS) - { - { /* dpp: EAS_ReportEx(_EAS_SEVERITY_ERROR, "Error %ld starting up mix engine\n", result); */ } - return result; - } - - /* initialize effects modules */ - for (module = 0; module < NUM_EFFECTS_MODULES; module++) - { - pEASData->effectsModules[module].effect = EAS_CMEnumFXModules(module); - if (pEASData->effectsModules[module].effect != NULL) - { - if ((result = (*pEASData->effectsModules[module].effect->pfInit)(pEASData, &pEASData->effectsModules[module].effectData)) != EAS_SUCCESS) - { - { /* dpp: EAS_ReportEx(_EAS_SEVERITY_FATAL, "Initialization of effects module %d returned %d\n", module, result); */ } - return result; - } - } - } - - /* initialize PCM engine */ - if ((result = EAS_PEInit(pEASData)) != EAS_SUCCESS) - { - { /* dpp: EAS_ReportEx(_EAS_SEVERITY_FATAL, "EAS_PEInit failed with error code %ld\n", result); */ } - return result; - } - - /* return instance data pointer to host */ - *ppEASData = pEASData; - - return EAS_SUCCESS; -} + /* initalize the metrics module */ + pEASData->pMetricsModule = EAS_CMEnumOptModules(EAS_MODULE_METRICS); + if (pEASData->pMetricsModule != NULL) + { + if ((result = (*pEASData->pMetricsModule->pfInit)(pEASData, &pEASData->pMetricsData)) != EAS_SUCCESS) + { + { /* dpp: EAS_ReportEx(_EAS_SEVERITY_ERROR, "Error %ld initializing metrics module\n", result); */ } + return result; + } + } +#endif + + /* initailize the voice manager & synthesizer */ + if ((result = VMInitialize(pEASData)) != EAS_SUCCESS) + return result; + + /* initialize mix engine */ + if ((result = EAS_MixEngineInit(pEASData)) != EAS_SUCCESS) + { + { /* dpp: EAS_ReportEx(_EAS_SEVERITY_ERROR, "Error %ld starting up mix engine\n", result); */ } + return result; + } + + /* initialize effects modules */ + for (module = 0; module < NUM_EFFECTS_MODULES; module++) + { + pEASData->effectsModules[module].effect = EAS_CMEnumFXModules(module); + if (pEASData->effectsModules[module].effect != NULL) + { + if ((result = (*pEASData->effectsModules[module].effect->pfInit)(pEASData, &pEASData->effectsModules[module].effectData)) != EAS_SUCCESS) + { + { /* dpp: EAS_ReportEx(_EAS_SEVERITY_FATAL, "Initialization of effects module %d returned %d\n", module, result); */ } + return result; + } + } + } + + /* initialize PCM engine */ + if ((result = EAS_PEInit(pEASData)) != EAS_SUCCESS) + { + { /* dpp: EAS_ReportEx(_EAS_SEVERITY_FATAL, "EAS_PEInit failed with error code %ld\n", result); */ } + return result; + } + + /* return instance data pointer to host */ + *ppEASData = pEASData; + + return EAS_SUCCESS; +} /*---------------------------------------------------------------------------- * EAS_Shutdown() @@ -457,7 +457,7 @@ EAS_PUBLIC EAS_RESULT EAS_Init (EAS_DATA_HANDLE *ppEASData) * synthesizer (dynamic memory model only) * * Inputs: - * pEASData - handle to data for this instance + * pEASData - handle to data for this instance * * Outputs: * @@ -465,93 +465,93 @@ EAS_PUBLIC EAS_RESULT EAS_Init (EAS_DATA_HANDLE *ppEASData) */ EAS_PUBLIC EAS_RESULT EAS_Shutdown (EAS_DATA_HANDLE pEASData) { - EAS_HW_DATA_HANDLE hwInstData; - EAS_RESULT result, reportResult; - EAS_INT i; - - /* establish pointers */ - hwInstData = pEASData->hwInstData; - - /* check for NULL handle */ - if (!pEASData) - return EAS_ERROR_HANDLE_INTEGRITY; - - /* if there are streams open, close them */ - reportResult = EAS_SUCCESS; - for (i = 0; i < MAX_NUMBER_STREAMS; i++) - { - if (pEASData->streams[i].pParserModule && pEASData->streams[i].handle) - { - if ((result = (*((S_FILE_PARSER_INTERFACE*)(pEASData->streams[i].pParserModule))->pfClose)(pEASData, pEASData->streams[i].handle)) != EAS_SUCCESS) - { - { /* dpp: EAS_ReportEx(_EAS_SEVERITY_ERROR, "Error %ld shutting down parser module\n", result); */ } - reportResult = result; - } - } - } - - /* shutdown PCM engine */ - if ((result = EAS_PEShutdown(pEASData)) != EAS_SUCCESS) - { - { /* dpp: EAS_ReportEx(_EAS_SEVERITY_ERROR, "Error %ld shutting down PCM engine\n", result); */ } - if (reportResult == EAS_SUCCESS) - reportResult = result; - } - - /* shutdown mix engine */ - if ((result = EAS_MixEngineShutdown(pEASData)) != EAS_SUCCESS) - { - { /* dpp: EAS_ReportEx(_EAS_SEVERITY_ERROR, "Error %ld shutting down mix engine\n", result); */ } - if (reportResult == EAS_SUCCESS) - reportResult = result; - } - - /* shutdown effects modules */ - for (i = 0; i < NUM_EFFECTS_MODULES; i++) - { - if (pEASData->effectsModules[i].effect) - { - if ((result = (*pEASData->effectsModules[i].effect->pfShutdown)(pEASData, pEASData->effectsModules[i].effectData)) != EAS_SUCCESS) - { - { /* dpp: EAS_ReportEx(_EAS_SEVERITY_FATAL, "Shutdown of effects module %d returned %d\n", i, result); */ } - if (reportResult == EAS_SUCCESS) - reportResult = result; - } - } - } - - /* shutdown the voice manager & synthesizer */ - VMShutdown(pEASData); - -#ifdef _METRICS_ENABLED - /* shutdown the metrics module */ - if (pEASData->pMetricsModule != NULL) - { - if ((result = (*pEASData->pMetricsModule->pfShutdown)(pEASData, pEASData->pMetricsData)) != EAS_SUCCESS) - { - { /* dpp: EAS_ReportEx(_EAS_SEVERITY_ERROR, "Error %ld shutting down metrics module\n", result); */ } - if (reportResult == EAS_SUCCESS) - reportResult = result; - } - } -#endif - - /* release allocated memory */ - if (!pEASData->staticMemoryModel) - EAS_HWFree(hwInstData, pEASData); - - /* shutdown host wrappers */ - if (hwInstData) - { - if ((result = EAS_HWShutdown(hwInstData)) != EAS_SUCCESS) - { - { /* dpp: EAS_ReportEx(_EAS_SEVERITY_ERROR, "Error %ld shutting down host wrappers\n", result); */ } - if (reportResult == EAS_SUCCESS) - reportResult = result; - } - } - - return reportResult; + EAS_HW_DATA_HANDLE hwInstData; + EAS_RESULT result, reportResult; + EAS_INT i; + + /* establish pointers */ + hwInstData = pEASData->hwInstData; + + /* check for NULL handle */ + if (!pEASData) + return EAS_ERROR_HANDLE_INTEGRITY; + + /* if there are streams open, close them */ + reportResult = EAS_SUCCESS; + for (i = 0; i < MAX_NUMBER_STREAMS; i++) + { + if (pEASData->streams[i].pParserModule && pEASData->streams[i].handle) + { + if ((result = (*((S_FILE_PARSER_INTERFACE*)(pEASData->streams[i].pParserModule))->pfClose)(pEASData, pEASData->streams[i].handle)) != EAS_SUCCESS) + { + { /* dpp: EAS_ReportEx(_EAS_SEVERITY_ERROR, "Error %ld shutting down parser module\n", result); */ } + reportResult = result; + } + } + } + + /* shutdown PCM engine */ + if ((result = EAS_PEShutdown(pEASData)) != EAS_SUCCESS) + { + { /* dpp: EAS_ReportEx(_EAS_SEVERITY_ERROR, "Error %ld shutting down PCM engine\n", result); */ } + if (reportResult == EAS_SUCCESS) + reportResult = result; + } + + /* shutdown mix engine */ + if ((result = EAS_MixEngineShutdown(pEASData)) != EAS_SUCCESS) + { + { /* dpp: EAS_ReportEx(_EAS_SEVERITY_ERROR, "Error %ld shutting down mix engine\n", result); */ } + if (reportResult == EAS_SUCCESS) + reportResult = result; + } + + /* shutdown effects modules */ + for (i = 0; i < NUM_EFFECTS_MODULES; i++) + { + if (pEASData->effectsModules[i].effect) + { + if ((result = (*pEASData->effectsModules[i].effect->pfShutdown)(pEASData, pEASData->effectsModules[i].effectData)) != EAS_SUCCESS) + { + { /* dpp: EAS_ReportEx(_EAS_SEVERITY_FATAL, "Shutdown of effects module %d returned %d\n", i, result); */ } + if (reportResult == EAS_SUCCESS) + reportResult = result; + } + } + } + + /* shutdown the voice manager & synthesizer */ + VMShutdown(pEASData); + +#ifdef _METRICS_ENABLED + /* shutdown the metrics module */ + if (pEASData->pMetricsModule != NULL) + { + if ((result = (*pEASData->pMetricsModule->pfShutdown)(pEASData, pEASData->pMetricsData)) != EAS_SUCCESS) + { + { /* dpp: EAS_ReportEx(_EAS_SEVERITY_ERROR, "Error %ld shutting down metrics module\n", result); */ } + if (reportResult == EAS_SUCCESS) + reportResult = result; + } + } +#endif + + /* release allocated memory */ + if (!pEASData->staticMemoryModel) + EAS_HWFree(hwInstData, pEASData); + + /* shutdown host wrappers */ + if (hwInstData) + { + if ((result = EAS_HWShutdown(hwInstData)) != EAS_SUCCESS) + { + { /* dpp: EAS_ReportEx(_EAS_SEVERITY_ERROR, "Error %ld shutting down host wrappers\n", result); */ } + if (reportResult == EAS_SUCCESS) + reportResult = result; + } + } + + return reportResult; } #ifdef JET_INTERFACE @@ -563,53 +563,53 @@ EAS_PUBLIC EAS_RESULT EAS_Shutdown (EAS_DATA_HANDLE pEASData) */ EAS_RESULT EAS_OpenJETStream (EAS_DATA_HANDLE pEASData, EAS_FILE_HANDLE fileHandle, EAS_I32 offset, EAS_HANDLE *ppStream) { - EAS_RESULT result; - EAS_VOID_PTR streamHandle; - S_FILE_PARSER_INTERFACE *pParserModule; - EAS_INT streamNum; - - /* allocate a stream */ - if ((streamNum = EAS_AllocateStream(pEASData)) < 0) - return EAS_ERROR_MAX_STREAMS_OPEN; - - /* check Configuration Module for SMF parser */ - *ppStream = NULL; - streamHandle = NULL; - pParserModule = (S_FILE_PARSER_INTERFACE *) EAS_CMEnumModules(0); - if (pParserModule == NULL) - return EAS_ERROR_UNRECOGNIZED_FORMAT; - - /* see if SMF parser recognizes the file */ - if ((result = (*pParserModule->pfCheckFileType)(pEASData, fileHandle, &streamHandle, offset)) != EAS_SUCCESS) - { - { /* dpp: EAS_ReportEx(_EAS_SEVERITY_ERROR, "CheckFileType returned error %ld\n", result); */ } - return result; - } - - /* parser recognized the file, return the handle */ - if (streamHandle) - { - EAS_InitStream(&pEASData->streams[streamNum], pParserModule, streamHandle); - *ppStream = &pEASData->streams[streamNum]; - return EAS_SUCCESS; - } - - return EAS_ERROR_UNRECOGNIZED_FORMAT; + EAS_RESULT result; + EAS_VOID_PTR streamHandle; + S_FILE_PARSER_INTERFACE *pParserModule; + EAS_INT streamNum; + + /* allocate a stream */ + if ((streamNum = EAS_AllocateStream(pEASData)) < 0) + return EAS_ERROR_MAX_STREAMS_OPEN; + + /* check Configuration Module for SMF parser */ + *ppStream = NULL; + streamHandle = NULL; + pParserModule = (S_FILE_PARSER_INTERFACE *) EAS_CMEnumModules(0); + if (pParserModule == NULL) + return EAS_ERROR_UNRECOGNIZED_FORMAT; + + /* see if SMF parser recognizes the file */ + if ((result = (*pParserModule->pfCheckFileType)(pEASData, fileHandle, &streamHandle, offset)) != EAS_SUCCESS) + { + { /* dpp: EAS_ReportEx(_EAS_SEVERITY_ERROR, "CheckFileType returned error %ld\n", result); */ } + return result; + } + + /* parser recognized the file, return the handle */ + if (streamHandle) + { + EAS_InitStream(&pEASData->streams[streamNum], pParserModule, streamHandle); + *ppStream = &pEASData->streams[streamNum]; + return EAS_SUCCESS; + } + + return EAS_ERROR_UNRECOGNIZED_FORMAT; } #endif /*---------------------------------------------------------------------------- * EAS_OpenFile() *---------------------------------------------------------------------------- - * Purpose: + * Purpose: * Opens a file for audio playback. * * Inputs: - * pEASData - pointer to overall EAS data structure - * pHandle - pointer to file handle - * + * pEASData - pointer to overall EAS data structure + * pHandle - pointer to file handle + * * Outputs: - * + * * * Side Effects: * @@ -617,72 +617,72 @@ EAS_RESULT EAS_OpenJETStream (EAS_DATA_HANDLE pEASData, EAS_FILE_HANDLE fileHand */ EAS_PUBLIC EAS_RESULT EAS_OpenFile (EAS_DATA_HANDLE pEASData, EAS_FILE_LOCATOR locator, EAS_HANDLE *ppStream) { - EAS_RESULT result; - EAS_FILE_HANDLE fileHandle; - EAS_VOID_PTR streamHandle; - S_FILE_PARSER_INTERFACE *pParserModule; - EAS_INT streamNum; - EAS_INT moduleNum; - - /* open the file */ - if ((result = EAS_HWOpenFile(pEASData->hwInstData, locator, &fileHandle, EAS_FILE_READ)) != EAS_SUCCESS) - return result; - - /* allocate a stream */ - if ((streamNum = EAS_AllocateStream(pEASData)) < 0) - return EAS_ERROR_MAX_STREAMS_OPEN; - - /* check Configuration Module for file parsers */ - pParserModule = NULL; - *ppStream = NULL; - streamHandle = NULL; - for (moduleNum = 0; ; moduleNum++) - { - pParserModule = (S_FILE_PARSER_INTERFACE *) EAS_CMEnumModules(moduleNum); - if (pParserModule == NULL) - break; - - /* see if this parser recognizes it */ - if ((result = (*pParserModule->pfCheckFileType)(pEASData, fileHandle, &streamHandle, 0L)) != EAS_SUCCESS) - { - { /* dpp: EAS_ReportEx(_EAS_SEVERITY_ERROR, "CheckFileType returned error %ld\n", result); */ } - return result; - } - - /* parser recognized the file, return the handle */ - if (streamHandle) - { - - /* save the parser pointer and file handle */ - EAS_InitStream(&pEASData->streams[streamNum], pParserModule, streamHandle); - *ppStream = &pEASData->streams[streamNum]; - return EAS_SUCCESS; - } - - /* rewind the file for the next parser */ - if ((result = EAS_HWFileSeek(pEASData->hwInstData, fileHandle, 0L)) != EAS_SUCCESS) - return result; - } - - /* no parser was able to recognize the file, close it and return an error */ - EAS_HWCloseFile(pEASData->hwInstData, fileHandle); - { /* dpp: EAS_ReportEx(_EAS_SEVERITY_WARNING, "No parser recognized the requested file\n"); */ } - return EAS_ERROR_UNRECOGNIZED_FORMAT; + EAS_RESULT result; + EAS_FILE_HANDLE fileHandle; + EAS_VOID_PTR streamHandle; + S_FILE_PARSER_INTERFACE *pParserModule; + EAS_INT streamNum; + EAS_INT moduleNum; + + /* open the file */ + if ((result = EAS_HWOpenFile(pEASData->hwInstData, locator, &fileHandle, EAS_FILE_READ)) != EAS_SUCCESS) + return result; + + /* allocate a stream */ + if ((streamNum = EAS_AllocateStream(pEASData)) < 0) + return EAS_ERROR_MAX_STREAMS_OPEN; + + /* check Configuration Module for file parsers */ + pParserModule = NULL; + *ppStream = NULL; + streamHandle = NULL; + for (moduleNum = 0; ; moduleNum++) + { + pParserModule = (S_FILE_PARSER_INTERFACE *) EAS_CMEnumModules(moduleNum); + if (pParserModule == NULL) + break; + + /* see if this parser recognizes it */ + if ((result = (*pParserModule->pfCheckFileType)(pEASData, fileHandle, &streamHandle, 0L)) != EAS_SUCCESS) + { + { /* dpp: EAS_ReportEx(_EAS_SEVERITY_ERROR, "CheckFileType returned error %ld\n", result); */ } + return result; + } + + /* parser recognized the file, return the handle */ + if (streamHandle) + { + + /* save the parser pointer and file handle */ + EAS_InitStream(&pEASData->streams[streamNum], pParserModule, streamHandle); + *ppStream = &pEASData->streams[streamNum]; + return EAS_SUCCESS; + } + + /* rewind the file for the next parser */ + if ((result = EAS_HWFileSeek(pEASData->hwInstData, fileHandle, 0L)) != EAS_SUCCESS) + return result; + } + + /* no parser was able to recognize the file, close it and return an error */ + EAS_HWCloseFile(pEASData->hwInstData, fileHandle); + { /* dpp: EAS_ReportEx(_EAS_SEVERITY_WARNING, "No parser recognized the requested file\n"); */ } + return EAS_ERROR_UNRECOGNIZED_FORMAT; } #ifdef MMAPI_SUPPORT /*---------------------------------------------------------------------------- * EAS_MMAPIToneControl() *---------------------------------------------------------------------------- - * Purpose: + * Purpose: * Opens a ToneControl file for audio playback. * * Inputs: - * pEASData - pointer to overall EAS data structure - * pHandle - pointer to file handle - * + * pEASData - pointer to overall EAS data structure + * pHandle - pointer to file handle + * * Outputs: - * + * * * Side Effects: * @@ -690,51 +690,51 @@ EAS_PUBLIC EAS_RESULT EAS_OpenFile (EAS_DATA_HANDLE pEASData, EAS_FILE_LOCATOR l */ EAS_PUBLIC EAS_RESULT EAS_MMAPIToneControl (EAS_DATA_HANDLE pEASData, EAS_FILE_LOCATOR locator, EAS_HANDLE *ppStream) { - EAS_RESULT result; - EAS_FILE_HANDLE fileHandle; - EAS_VOID_PTR streamHandle; - S_FILE_PARSER_INTERFACE *pParserModule; - EAS_INT streamNum; - - /* check if the tone control parser is available */ - *ppStream = NULL; - streamHandle = NULL; - pParserModule = EAS_CMEnumOptModules(EAS_MODULE_MMAPI_TONE_CONTROL); - if (pParserModule == NULL) - { - { /* dpp: EAS_ReportEx(_EAS_SEVERITY_ERROR, "EAS_MMAPIToneControl: ToneControl parser not available\n"); */ } - return EAS_ERROR_FEATURE_NOT_AVAILABLE; - } - - /* open the file */ - if ((result = EAS_HWOpenFile(pEASData->hwInstData, locator, &fileHandle, EAS_FILE_READ)) != EAS_SUCCESS) - return result; - - /* allocate a stream */ - if ((streamNum = EAS_AllocateStream(pEASData)) < 0) - return EAS_ERROR_MAX_STREAMS_OPEN; - - /* see if ToneControl parser recognizes it */ - if ((result = (*pParserModule->pfCheckFileType)(pEASData, fileHandle, &streamHandle, 0L)) != EAS_SUCCESS) - { - { /* dpp: EAS_ReportEx(_EAS_SEVERITY_ERROR, "CheckFileType returned error %ld\n", result); */ } - return result; - } - - /* parser accepted the file, return the handle */ - if (streamHandle) - { - - /* save the parser pointer and file handle */ - EAS_InitStream(&pEASData->streams[streamNum], pParserModule, streamHandle); - *ppStream = &pEASData->streams[streamNum]; - return EAS_SUCCESS; - } - - /* parser did not recognize the file, close it and return an error */ - EAS_HWCloseFile(pEASData->hwInstData, fileHandle); - { /* dpp: EAS_ReportEx(_EAS_SEVERITY_WARNING, "No parser recognized the requested file\n"); */ } - return EAS_ERROR_UNRECOGNIZED_FORMAT; + EAS_RESULT result; + EAS_FILE_HANDLE fileHandle; + EAS_VOID_PTR streamHandle; + S_FILE_PARSER_INTERFACE *pParserModule; + EAS_INT streamNum; + + /* check if the tone control parser is available */ + *ppStream = NULL; + streamHandle = NULL; + pParserModule = EAS_CMEnumOptModules(EAS_MODULE_MMAPI_TONE_CONTROL); + if (pParserModule == NULL) + { + { /* dpp: EAS_ReportEx(_EAS_SEVERITY_ERROR, "EAS_MMAPIToneControl: ToneControl parser not available\n"); */ } + return EAS_ERROR_FEATURE_NOT_AVAILABLE; + } + + /* open the file */ + if ((result = EAS_HWOpenFile(pEASData->hwInstData, locator, &fileHandle, EAS_FILE_READ)) != EAS_SUCCESS) + return result; + + /* allocate a stream */ + if ((streamNum = EAS_AllocateStream(pEASData)) < 0) + return EAS_ERROR_MAX_STREAMS_OPEN; + + /* see if ToneControl parser recognizes it */ + if ((result = (*pParserModule->pfCheckFileType)(pEASData, fileHandle, &streamHandle, 0L)) != EAS_SUCCESS) + { + { /* dpp: EAS_ReportEx(_EAS_SEVERITY_ERROR, "CheckFileType returned error %ld\n", result); */ } + return result; + } + + /* parser accepted the file, return the handle */ + if (streamHandle) + { + + /* save the parser pointer and file handle */ + EAS_InitStream(&pEASData->streams[streamNum], pParserModule, streamHandle); + *ppStream = &pEASData->streams[streamNum]; + return EAS_SUCCESS; + } + + /* parser did not recognize the file, close it and return an error */ + EAS_HWCloseFile(pEASData->hwInstData, fileHandle); + { /* dpp: EAS_ReportEx(_EAS_SEVERITY_WARNING, "No parser recognized the requested file\n"); */ } + return EAS_ERROR_UNRECOGNIZED_FORMAT; } /*---------------------------------------------------------------------------- @@ -742,20 +742,20 @@ EAS_PUBLIC EAS_RESULT EAS_MMAPIToneControl (EAS_DATA_HANDLE pEASData, EAS_FILE_L *---------------------------------------------------------------------------- * Helper function to retrieve WAVE file fmt chunk for MMAPI *---------------------------------------------------------------------------- - * pEASData - pointer to EAS persistent data object - * pStream - stream handle - * pFmtChunk - pointer to variable to receive current setting + * pEASData - pointer to EAS persistent data object + * pStream - stream handle + * pFmtChunk - pointer to variable to receive current setting *---------------------------------------------------------------------------- */ EAS_PUBLIC EAS_RESULT EAS_GetWaveFmtChunk (S_EAS_DATA *pEASData, EAS_HANDLE pStream, EAS_VOID_PTR *ppFmtChunk) { - EAS_RESULT result; - EAS_I32 value; + EAS_RESULT result; + EAS_I32 value; - if ((result = EAS_GetStreamParameter(pEASData, pStream, PARSER_DATA_FORMAT, &value)) != EAS_SUCCESS) - return result; - *ppFmtChunk = (EAS_VOID_PTR) value; - return EAS_SUCCESS; + if ((result = EAS_GetStreamParameter(pEASData, pStream, PARSER_DATA_FORMAT, &value)) != EAS_SUCCESS) + return result; + *ppFmtChunk = (EAS_VOID_PTR) value; + return EAS_SUCCESS; } #endif @@ -764,31 +764,31 @@ EAS_PUBLIC EAS_RESULT EAS_GetWaveFmtChunk (S_EAS_DATA *pEASData, EAS_HANDLE pStr *---------------------------------------------------------------------------- * Returns the file type (see eas_types.h for enumerations) *---------------------------------------------------------------------------- - * pEASData - pointer to EAS persistent data object - * pStream - stream handle - * pFileType - pointer to variable to receive file type + * pEASData - pointer to EAS persistent data object + * pStream - stream handle + * pFileType - pointer to variable to receive file type *---------------------------------------------------------------------------- */ EAS_PUBLIC EAS_RESULT EAS_GetFileType (S_EAS_DATA *pEASData, EAS_HANDLE pStream, EAS_I32 *pFileType) { - if (!EAS_StreamReady (pEASData, pStream)) - return EAS_ERROR_NOT_VALID_IN_THIS_STATE; - return EAS_GetStreamParameter(pEASData, pStream, PARSER_DATA_FILE_TYPE, pFileType); + if (!EAS_StreamReady (pEASData, pStream)) + return EAS_ERROR_NOT_VALID_IN_THIS_STATE; + return EAS_GetStreamParameter(pEASData, pStream, PARSER_DATA_FILE_TYPE, pFileType); } /*---------------------------------------------------------------------------- * EAS_Prepare() *---------------------------------------------------------------------------- - * Purpose: + * Purpose: * Prepares the synthesizer to play the file or stream. Parses the first * frame of data from the file and arms the synthesizer. * * Inputs: - * pEASData - pointer to overall EAS data structure - * handle - file or stream handle - * + * pEASData - pointer to overall EAS data structure + * handle - file or stream handle + * * Outputs: - * + * * * Side Effects: * @@ -796,35 +796,35 @@ EAS_PUBLIC EAS_RESULT EAS_GetFileType (S_EAS_DATA *pEASData, EAS_HANDLE pStream, */ EAS_PUBLIC EAS_RESULT EAS_Prepare (EAS_DATA_HANDLE pEASData, EAS_HANDLE pStream) { - S_FILE_PARSER_INTERFACE *pParserModule; - EAS_STATE state; - EAS_RESULT result; - - pParserModule = (S_FILE_PARSER_INTERFACE*) pStream->pParserModule; - if (pParserModule == NULL) - return EAS_ERROR_FEATURE_NOT_AVAILABLE; - - /* check for valid state */ - result = pParserModule->pfState(pEASData, pStream->handle, &state); - if (result == EAS_SUCCESS) - { - /* prepare the stream */ - if (state == EAS_STATE_OPEN) - { - pParserModule = (S_FILE_PARSER_INTERFACE*) pStream->pParserModule; - result = (*pParserModule->pfPrepare)(pEASData, pStream->handle); - - /* set volume */ - if (result == EAS_SUCCESS) - result = EAS_SetVolume(pEASData, pStream, pStream->volume); - } - else - result = EAS_ERROR_NOT_VALID_IN_THIS_STATE; - - } - - return result; -} + S_FILE_PARSER_INTERFACE *pParserModule; + EAS_STATE state; + EAS_RESULT result; + + pParserModule = (S_FILE_PARSER_INTERFACE*) pStream->pParserModule; + if (pParserModule == NULL) + return EAS_ERROR_FEATURE_NOT_AVAILABLE; + + /* check for valid state */ + result = pParserModule->pfState(pEASData, pStream->handle, &state); + if (result == EAS_SUCCESS) + { + /* prepare the stream */ + if (state == EAS_STATE_OPEN) + { + pParserModule = (S_FILE_PARSER_INTERFACE*) pStream->pParserModule; + result = (*pParserModule->pfPrepare)(pEASData, pStream->handle); + + /* set volume */ + if (result == EAS_SUCCESS) + result = EAS_SetVolume(pEASData, pStream, pStream->volume); + } + else + result = EAS_ERROR_NOT_VALID_IN_THIS_STATE; + + } + + return result; +} /*---------------------------------------------------------------------------- * EAS_Render() @@ -834,323 +834,323 @@ EAS_PUBLIC EAS_RESULT EAS_Prepare (EAS_DATA_HANDLE pEASData, EAS_HANDLE pStream) * * Inputs: * pEASData - buffer for internal EAS data - * pOut - output buffer pointer - * nNumRequested - requested num samples to generate - * pnNumGenerated - actual number of samples generated + * pOut - output buffer pointer + * nNumRequested - requested num samples to generate + * pnNumGenerated - actual number of samples generated * * Outputs: - * EAS_SUCCESS if PCM data was successfully rendered + * EAS_SUCCESS if PCM data was successfully rendered * *---------------------------------------------------------------------------- */ EAS_PUBLIC EAS_RESULT EAS_Render (EAS_DATA_HANDLE pEASData, EAS_PCM *pOut, EAS_I32 numRequested, EAS_I32 *pNumGenerated) { - S_FILE_PARSER_INTERFACE *pParserModule; - EAS_RESULT result; - EAS_I32 voicesRendered; - EAS_STATE parserState; - EAS_INT streamNum; - - /* assume no samples generated and reset workload */ - *pNumGenerated = 0; - VMInitWorkload(pEASData->pVoiceMgr); - - /* no support for other buffer sizes yet */ - if (numRequested != BUFFER_SIZE_IN_MONO_SAMPLES) - { - { /* dpp: EAS_ReportEx(_EAS_SEVERITY_ERROR, "This library supports only %ld samples in buffer, host requested %ld samples\n", - (EAS_I32) BUFFER_SIZE_IN_MONO_SAMPLES, numRequested); */ } - return EAS_BUFFER_SIZE_MISMATCH; - } - -#ifdef _METRICS_ENABLED - /* start performance counter */ - if (pEASData->pMetricsData) - (*pEASData->pMetricsModule->pfStartTimer)(pEASData->pMetricsData, EAS_PM_TOTAL_TIME); + S_FILE_PARSER_INTERFACE *pParserModule; + EAS_RESULT result; + EAS_I32 voicesRendered; + EAS_STATE parserState; + EAS_INT streamNum; + + /* assume no samples generated and reset workload */ + *pNumGenerated = 0; + VMInitWorkload(pEASData->pVoiceMgr); + + /* no support for other buffer sizes yet */ + if (numRequested != BUFFER_SIZE_IN_MONO_SAMPLES) + { + { /* dpp: EAS_ReportEx(_EAS_SEVERITY_ERROR, "This library supports only %ld samples in buffer, host requested %ld samples\n", + (EAS_I32) BUFFER_SIZE_IN_MONO_SAMPLES, numRequested); */ } + return EAS_BUFFER_SIZE_MISMATCH; + } + +#ifdef _METRICS_ENABLED + /* start performance counter */ + if (pEASData->pMetricsData) + (*pEASData->pMetricsModule->pfStartTimer)(pEASData->pMetricsData, EAS_PM_TOTAL_TIME); #endif - /* prep the frame buffer, do mix engine prep only if TRUE */ + /* prep the frame buffer, do mix engine prep only if TRUE */ #ifdef _SPLIT_ARCHITECTURE - if (VMStartFrame(pEASData)) - EAS_MixEnginePrep(pEASData, numRequested); -#else - /* prep the mix engine */ - EAS_MixEnginePrep(pEASData, numRequested); + if (VMStartFrame(pEASData)) + EAS_MixEnginePrep(pEASData, numRequested); +#else + /* prep the mix engine */ + EAS_MixEnginePrep(pEASData, numRequested); #endif - /* save the output buffer pointer */ - pEASData->pOutputAudioBuffer = pOut; - - -#ifdef _METRICS_ENABLED - /* start performance counter */ - if (pEASData->pMetricsData) - (*pEASData->pMetricsModule->pfStartTimer)(pEASData->pMetricsData, EAS_PM_PARSE_TIME); -#endif - - /* if we haven't finished parsing from last time, do it now */ - /* need to parse another frame of events before we render again */ - for (streamNum = 0; streamNum < MAX_NUMBER_STREAMS; streamNum++) - { - /* clear the locate flag */ - pEASData->streams[streamNum].streamFlags &= ~STREAM_FLAGS_LOCATE; - - if (pEASData->streams[streamNum].pParserModule) - { - - /* establish pointer to parser module */ - pParserModule = pEASData->streams[streamNum].pParserModule; - - /* handle pause */ - if (pEASData->streams[streamNum].streamFlags & STREAM_FLAGS_PAUSE) - { - if (pParserModule->pfPause) - result = pParserModule->pfPause(pEASData, pEASData->streams[streamNum].handle); - pEASData->streams[streamNum].streamFlags &= ~STREAM_FLAGS_PAUSE; - } - - /* get current state */ - if ((result = (*pParserModule->pfState)(pEASData, pEASData->streams[streamNum].handle, &parserState)) != EAS_SUCCESS) - return result; - - /* handle resume */ - if (parserState == EAS_STATE_PAUSED) - { - if (pEASData->streams[streamNum].streamFlags & STREAM_FLAGS_RESUME) - { - if (pParserModule->pfResume) - result = pParserModule->pfResume(pEASData, pEASData->streams[streamNum].handle); - pEASData->streams[streamNum].streamFlags &= ~STREAM_FLAGS_RESUME; - } - } - - /* if necessary, parse stream */ - if ((pEASData->streams[streamNum].streamFlags & STREAM_FLAGS_PARSED) == 0) - if ((result = EAS_ParseEvents(pEASData, &pEASData->streams[streamNum], pEASData->streams[streamNum].time + pEASData->streams[streamNum].frameLength, eParserModePlay)) != EAS_SUCCESS) - return result; - - /* check for an early abort */ - if ((pEASData->streams[streamNum].streamFlags) == 0) - { - -#ifdef _METRICS_ENABLED - /* stop performance counter */ - if (pEASData->pMetricsData) - (*pEASData->pMetricsModule->pfStartTimer)(pEASData->pMetricsData, EAS_PM_TOTAL_TIME); + /* save the output buffer pointer */ + pEASData->pOutputAudioBuffer = pOut; + + +#ifdef _METRICS_ENABLED + /* start performance counter */ + if (pEASData->pMetricsData) + (*pEASData->pMetricsModule->pfStartTimer)(pEASData->pMetricsData, EAS_PM_PARSE_TIME); #endif - return EAS_SUCCESS; - } - - /* check for repeat */ - if (pEASData->streams[streamNum].repeatCount) - { - - /* check for stopped state */ - if ((result = (*pParserModule->pfState)(pEASData, pEASData->streams[streamNum].handle, &parserState)) != EAS_SUCCESS) - return result; - if (parserState == EAS_STATE_STOPPED) - { - - /* decrement repeat count, unless it is negative */ - if (pEASData->streams[streamNum].repeatCount > 0) - pEASData->streams[streamNum].repeatCount--; - - /* reset the parser */ - if ((result = (*pParserModule->pfReset)(pEASData, pEASData->streams[streamNum].handle)) != EAS_SUCCESS) - return result; - pEASData->streams[streamNum].time = 0; - } - } - } - } - -#ifdef _METRICS_ENABLED - /* stop performance counter */ - if (pEASData->pMetricsData) - (void)(*pEASData->pMetricsModule->pfStopTimer)(pEASData->pMetricsData, EAS_PM_PARSE_TIME); + /* if we haven't finished parsing from last time, do it now */ + /* need to parse another frame of events before we render again */ + for (streamNum = 0; streamNum < MAX_NUMBER_STREAMS; streamNum++) + { + /* clear the locate flag */ + pEASData->streams[streamNum].streamFlags &= ~STREAM_FLAGS_LOCATE; + + if (pEASData->streams[streamNum].pParserModule) + { + + /* establish pointer to parser module */ + pParserModule = pEASData->streams[streamNum].pParserModule; + + /* handle pause */ + if (pEASData->streams[streamNum].streamFlags & STREAM_FLAGS_PAUSE) + { + if (pParserModule->pfPause) + result = pParserModule->pfPause(pEASData, pEASData->streams[streamNum].handle); + pEASData->streams[streamNum].streamFlags &= ~STREAM_FLAGS_PAUSE; + } + + /* get current state */ + if ((result = (*pParserModule->pfState)(pEASData, pEASData->streams[streamNum].handle, &parserState)) != EAS_SUCCESS) + return result; + + /* handle resume */ + if (parserState == EAS_STATE_PAUSED) + { + if (pEASData->streams[streamNum].streamFlags & STREAM_FLAGS_RESUME) + { + if (pParserModule->pfResume) + result = pParserModule->pfResume(pEASData, pEASData->streams[streamNum].handle); + pEASData->streams[streamNum].streamFlags &= ~STREAM_FLAGS_RESUME; + } + } + + /* if necessary, parse stream */ + if ((pEASData->streams[streamNum].streamFlags & STREAM_FLAGS_PARSED) == 0) + if ((result = EAS_ParseEvents(pEASData, &pEASData->streams[streamNum], pEASData->streams[streamNum].time + pEASData->streams[streamNum].frameLength, eParserModePlay)) != EAS_SUCCESS) + return result; + + /* check for an early abort */ + if ((pEASData->streams[streamNum].streamFlags) == 0) + { + +#ifdef _METRICS_ENABLED + /* stop performance counter */ + if (pEASData->pMetricsData) + (*pEASData->pMetricsModule->pfStartTimer)(pEASData->pMetricsData, EAS_PM_TOTAL_TIME); #endif - -#ifdef _METRICS_ENABLED - /* start the render timer */ - if (pEASData->pMetricsData) - (*pEASData->pMetricsModule->pfStartTimer)(pEASData->pMetricsData, EAS_PM_RENDER_TIME); + + return EAS_SUCCESS; + } + + /* check for repeat */ + if (pEASData->streams[streamNum].repeatCount) + { + + /* check for stopped state */ + if ((result = (*pParserModule->pfState)(pEASData, pEASData->streams[streamNum].handle, &parserState)) != EAS_SUCCESS) + return result; + if (parserState == EAS_STATE_STOPPED) + { + + /* decrement repeat count, unless it is negative */ + if (pEASData->streams[streamNum].repeatCount > 0) + pEASData->streams[streamNum].repeatCount--; + + /* reset the parser */ + if ((result = (*pParserModule->pfReset)(pEASData, pEASData->streams[streamNum].handle)) != EAS_SUCCESS) + return result; + pEASData->streams[streamNum].time = 0; + } + } + } + } + +#ifdef _METRICS_ENABLED + /* stop performance counter */ + if (pEASData->pMetricsData) + (void)(*pEASData->pMetricsModule->pfStopTimer)(pEASData->pMetricsData, EAS_PM_PARSE_TIME); #endif - /* render audio */ - if ((result = VMRender(pEASData->pVoiceMgr, BUFFER_SIZE_IN_MONO_SAMPLES, pEASData->pMixBuffer, &voicesRendered)) != EAS_SUCCESS) - { - { /* dpp: EAS_ReportEx(_EAS_SEVERITY_ERROR, "pfRender function returned error %ld\n", result); */ } - return result; - } - -#ifdef _METRICS_ENABLED - /* stop the render timer */ - if (pEASData->pMetricsData) { - (*pEASData->pMetricsModule->pfIncrementCounter)(pEASData->pMetricsData, EAS_PM_FRAME_COUNT, 1); - (void)(*pEASData->pMetricsModule->pfStopTimer)(pEASData->pMetricsData, EAS_PM_RENDER_TIME); - (*pEASData->pMetricsModule->pfIncrementCounter)(pEASData->pMetricsData, EAS_PM_TOTAL_VOICE_COUNT, (EAS_U32) voicesRendered); - (void)(*pEASData->pMetricsModule->pfRecordMaxValue)(pEASData->pMetricsData, EAS_PM_MAX_VOICES, (EAS_U32) voicesRendered); - } +#ifdef _METRICS_ENABLED + /* start the render timer */ + if (pEASData->pMetricsData) + (*pEASData->pMetricsModule->pfStartTimer)(pEASData->pMetricsData, EAS_PM_RENDER_TIME); #endif - //2 Do we really need frameParsed? - /* need to parse another frame of events before we render again */ - for (streamNum = 0; streamNum < MAX_NUMBER_STREAMS; streamNum++) - if (pEASData->streams[streamNum].pParserModule != NULL) - pEASData->streams[streamNum].streamFlags &= ~STREAM_FLAGS_PARSED; + /* render audio */ + if ((result = VMRender(pEASData->pVoiceMgr, BUFFER_SIZE_IN_MONO_SAMPLES, pEASData->pMixBuffer, &voicesRendered)) != EAS_SUCCESS) + { + { /* dpp: EAS_ReportEx(_EAS_SEVERITY_ERROR, "pfRender function returned error %ld\n", result); */ } + return result; + } -#ifdef _METRICS_ENABLED - /* start performance counter */ - if (pEASData->pMetricsData) - (*pEASData->pMetricsModule->pfStartTimer)(pEASData->pMetricsData, EAS_PM_STREAM_TIME); +#ifdef _METRICS_ENABLED + /* stop the render timer */ + if (pEASData->pMetricsData) { + (*pEASData->pMetricsModule->pfIncrementCounter)(pEASData->pMetricsData, EAS_PM_FRAME_COUNT, 1); + (void)(*pEASData->pMetricsModule->pfStopTimer)(pEASData->pMetricsData, EAS_PM_RENDER_TIME); + (*pEASData->pMetricsModule->pfIncrementCounter)(pEASData->pMetricsData, EAS_PM_TOTAL_VOICE_COUNT, (EAS_U32) voicesRendered); + (void)(*pEASData->pMetricsModule->pfRecordMaxValue)(pEASData->pMetricsData, EAS_PM_MAX_VOICES, (EAS_U32) voicesRendered); + } #endif - /* render PCM audio */ - if ((result = EAS_PERender(pEASData, numRequested)) != EAS_SUCCESS) - { - { /* dpp: EAS_ReportEx(_EAS_SEVERITY_ERROR, "EAS_PERender returned error %ld\n", result); */ } - return result; - } - -#ifdef _METRICS_ENABLED - /* stop the stream timer */ - if (pEASData->pMetricsData) - (void)(*pEASData->pMetricsModule->pfStopTimer)(pEASData->pMetricsData, EAS_PM_STREAM_TIME); + //2 Do we really need frameParsed? + /* need to parse another frame of events before we render again */ + for (streamNum = 0; streamNum < MAX_NUMBER_STREAMS; streamNum++) + if (pEASData->streams[streamNum].pParserModule != NULL) + pEASData->streams[streamNum].streamFlags &= ~STREAM_FLAGS_PARSED; + +#ifdef _METRICS_ENABLED + /* start performance counter */ + if (pEASData->pMetricsData) + (*pEASData->pMetricsModule->pfStartTimer)(pEASData->pMetricsData, EAS_PM_STREAM_TIME); #endif -#ifdef _METRICS_ENABLED - /* start the post timer */ - if (pEASData->pMetricsData) - (*pEASData->pMetricsModule->pfStartTimer)(pEASData->pMetricsData, EAS_PM_POST_TIME); + /* render PCM audio */ + if ((result = EAS_PERender(pEASData, numRequested)) != EAS_SUCCESS) + { + { /* dpp: EAS_ReportEx(_EAS_SEVERITY_ERROR, "EAS_PERender returned error %ld\n", result); */ } + return result; + } + +#ifdef _METRICS_ENABLED + /* stop the stream timer */ + if (pEASData->pMetricsData) + (void)(*pEASData->pMetricsModule->pfStopTimer)(pEASData->pMetricsData, EAS_PM_STREAM_TIME); +#endif + +#ifdef _METRICS_ENABLED + /* start the post timer */ + if (pEASData->pMetricsData) + (*pEASData->pMetricsModule->pfStartTimer)(pEASData->pMetricsData, EAS_PM_POST_TIME); #endif - /* for split architecture, send DSP vectors. Do post only if return is TRUE */ + /* for split architecture, send DSP vectors. Do post only if return is TRUE */ #ifdef _SPLIT_ARCHITECTURE - if (VMEndFrame(pEASData)) - { - /* now do post-processing */ - EAS_MixEnginePost(pEASData, numRequested); - *pNumGenerated = numRequested; - } -#else - /* now do post-processing */ - EAS_MixEnginePost(pEASData, numRequested); - *pNumGenerated = numRequested; + if (VMEndFrame(pEASData)) + { + /* now do post-processing */ + EAS_MixEnginePost(pEASData, numRequested); + *pNumGenerated = numRequested; + } +#else + /* now do post-processing */ + EAS_MixEnginePost(pEASData, numRequested); + *pNumGenerated = numRequested; #endif -#ifdef _METRICS_ENABLED - /* stop the post timer */ - if (pEASData->pMetricsData) - (void)(*pEASData->pMetricsModule->pfStopTimer)(pEASData->pMetricsData, EAS_PM_POST_TIME); +#ifdef _METRICS_ENABLED + /* stop the post timer */ + if (pEASData->pMetricsData) + (void)(*pEASData->pMetricsModule->pfStopTimer)(pEASData->pMetricsData, EAS_PM_POST_TIME); #endif - /* advance render time */ - pEASData->renderTime += AUDIO_FRAME_LENGTH; + /* advance render time */ + pEASData->renderTime += AUDIO_FRAME_LENGTH; #if 0 - /* dump workload for debug */ - if (pEASData->pVoiceMgr->workload) - { /* dpp: EAS_ReportEx(_EAS_SEVERITY_DETAIL, "Workload = %d\n", pEASData->pVoiceMgr->workload); */ } -#endif - -#ifdef _METRICS_ENABLED - /* stop performance counter */ - if (pEASData->pMetricsData) - { - PERF_TIMER temp; - temp = (*pEASData->pMetricsModule->pfStopTimer)(pEASData->pMetricsData, EAS_PM_TOTAL_TIME); - - /* if max render time, record the number of voices and time */ - if ((*pEASData->pMetricsModule->pfRecordMaxValue) - (pEASData->pMetricsData, EAS_PM_MAX_CYCLES, (EAS_U32) temp)) - { - (*pEASData->pMetricsModule->pfRecordValue)(pEASData->pMetricsData, EAS_PM_MAX_CYCLES_VOICES, (EAS_U32) voicesRendered); - (*pEASData->pMetricsModule->pfRecordValue)(pEASData->pMetricsData, EAS_PM_MAX_CYCLES_TIME, (EAS_I32) (pEASData->renderTime >> 8)); - } - } + /* dump workload for debug */ + if (pEASData->pVoiceMgr->workload) + { /* dpp: EAS_ReportEx(_EAS_SEVERITY_DETAIL, "Workload = %d\n", pEASData->pVoiceMgr->workload); */ } +#endif + +#ifdef _METRICS_ENABLED + /* stop performance counter */ + if (pEASData->pMetricsData) + { + PERF_TIMER temp; + temp = (*pEASData->pMetricsModule->pfStopTimer)(pEASData->pMetricsData, EAS_PM_TOTAL_TIME); + + /* if max render time, record the number of voices and time */ + if ((*pEASData->pMetricsModule->pfRecordMaxValue) + (pEASData->pMetricsData, EAS_PM_MAX_CYCLES, (EAS_U32) temp)) + { + (*pEASData->pMetricsModule->pfRecordValue)(pEASData->pMetricsData, EAS_PM_MAX_CYCLES_VOICES, (EAS_U32) voicesRendered); + (*pEASData->pMetricsModule->pfRecordValue)(pEASData->pMetricsData, EAS_PM_MAX_CYCLES_TIME, (EAS_I32) (pEASData->renderTime >> 8)); + } + } #endif #ifdef JET_INTERFACE - /* let JET to do its thing */ - if (pEASData->jetHandle != NULL) - { - result = JET_Process(pEASData); - if (result != EAS_SUCCESS) - return result; - } + /* let JET to do its thing */ + if (pEASData->jetHandle != NULL) + { + result = JET_Process(pEASData); + if (result != EAS_SUCCESS) + return result; + } #endif - return EAS_SUCCESS; + return EAS_SUCCESS; } /*---------------------------------------------------------------------------- * EAS_SetRepeat() *---------------------------------------------------------------------------- - * Purpose: + * Purpose: * Set the selected stream to repeat. * * Inputs: - * pEASData - handle to data for this instance - * handle - handle to stream - * repeatCount - repeat count - * + * pEASData - handle to data for this instance + * handle - handle to stream + * repeatCount - repeat count + * * Outputs: * * Side Effects: * * Notes: - * 0 = no repeat - * 1 = repeat once, i.e. play through twice + * 0 = no repeat + * 1 = repeat once, i.e. play through twice * -1 = repeat forever *---------------------------------------------------------------------------- */ /*lint -esym(715, pEASData) reserved for future use */ EAS_PUBLIC EAS_RESULT EAS_SetRepeat (EAS_DATA_HANDLE pEASData, EAS_HANDLE pStream, EAS_I32 repeatCount) { - pStream->repeatCount = repeatCount; - return EAS_SUCCESS; + pStream->repeatCount = repeatCount; + return EAS_SUCCESS; } /*---------------------------------------------------------------------------- * EAS_GetRepeat() *---------------------------------------------------------------------------- - * Purpose: + * Purpose: * Gets the current repeat count for the selected stream. * * Inputs: - * pEASData - handle to data for this instance - * handle - handle to stream - * pRrepeatCount - pointer to variable to hold repeat count - * + * pEASData - handle to data for this instance + * handle - handle to stream + * pRrepeatCount - pointer to variable to hold repeat count + * * Outputs: * * Side Effects: * * Notes: - * 0 = no repeat - * 1 = repeat once, i.e. play through twice + * 0 = no repeat + * 1 = repeat once, i.e. play through twice * -1 = repeat forever *---------------------------------------------------------------------------- */ /*lint -esym(715, pEASData) reserved for future use */ EAS_PUBLIC EAS_RESULT EAS_GetRepeat (EAS_DATA_HANDLE pEASData, EAS_HANDLE pStream, EAS_I32 *pRepeatCount) { - *pRepeatCount = pStream->repeatCount; - return EAS_SUCCESS; + *pRepeatCount = pStream->repeatCount; + return EAS_SUCCESS; } /*---------------------------------------------------------------------------- * EAS_SetPlaybackRate() *---------------------------------------------------------------------------- - * Purpose: + * Purpose: * Sets the playback rate. * * Inputs: - * pEASData - handle to data for this instance - * handle - handle to stream - * rate - rate (28-bit fractional amount) - * + * pEASData - handle to data for this instance + * handle - handle to stream + * rate - rate (28-bit fractional amount) + * * Outputs: * * Side Effects: @@ -1161,37 +1161,37 @@ EAS_PUBLIC EAS_RESULT EAS_GetRepeat (EAS_DATA_HANDLE pEASData, EAS_HANDLE pStrea EAS_PUBLIC EAS_RESULT EAS_SetPlaybackRate (EAS_DATA_HANDLE pEASData, EAS_HANDLE pStream, EAS_U32 rate) { - /* check range */ - if ((rate < (1 << 27)) || (rate > (1 << 29))) - return EAS_ERROR_INVALID_PARAMETER; - - /* calculate new frame length - * - * NOTE: The maximum frame length we can accomodate based on a - * maximum rate of 2.0 (2^28) is 2047 (2^13-1). To accomodate a - * longer frame length or a higher maximum rate, the fixed point - * divide below will need to be adjusted - */ - pStream->frameLength = (AUDIO_FRAME_LENGTH * (rate >> 8)) >> 20; - - /* notify stream of new playback rate */ - EAS_SetStreamParameter(pEASData, pStream, PARSER_DATA_PLAYBACK_RATE, (EAS_I32) rate); - return EAS_SUCCESS; + /* check range */ + if ((rate < (1 << 27)) || (rate > (1 << 29))) + return EAS_ERROR_INVALID_PARAMETER; + + /* calculate new frame length + * + * NOTE: The maximum frame length we can accomodate based on a + * maximum rate of 2.0 (2^28) is 2047 (2^13-1). To accomodate a + * longer frame length or a higher maximum rate, the fixed point + * divide below will need to be adjusted + */ + pStream->frameLength = (AUDIO_FRAME_LENGTH * (rate >> 8)) >> 20; + + /* notify stream of new playback rate */ + EAS_SetStreamParameter(pEASData, pStream, PARSER_DATA_PLAYBACK_RATE, (EAS_I32) rate); + return EAS_SUCCESS; } /*---------------------------------------------------------------------------- * EAS_SetTransposition) *---------------------------------------------------------------------------- - * Purpose: + * Purpose: * Sets the key tranposition for the synthesizer. Transposes all * melodic instruments by the specified amount. Range is limited * to +/-12 semitones. * * Inputs: - * pEASData - handle to data for this instance - * handle - handle to stream - * transposition - +/-12 semitones - * + * pEASData - handle to data for this instance + * handle - handle to stream + * transposition - +/-12 semitones + * * Outputs: * * Side Effects: @@ -1201,15 +1201,15 @@ EAS_PUBLIC EAS_RESULT EAS_SetPlaybackRate (EAS_DATA_HANDLE pEASData, EAS_HANDLE EAS_PUBLIC EAS_RESULT EAS_SetTransposition (EAS_DATA_HANDLE pEASData, EAS_HANDLE pStream, EAS_I32 transposition) { - /* check range */ - if ((transposition < -12) || (transposition > 12)) - return EAS_ERROR_INVALID_PARAMETER; + /* check range */ + if ((transposition < -12) || (transposition > 12)) + return EAS_ERROR_INVALID_PARAMETER; - if (!EAS_StreamReady(pEASData, pStream)) - return EAS_ERROR_NOT_VALID_IN_THIS_STATE; - return EAS_IntSetStrmParam(pEASData, pStream, PARSER_DATA_TRANSPOSITION, transposition); + if (!EAS_StreamReady(pEASData, pStream)) + return EAS_ERROR_NOT_VALID_IN_THIS_STATE; + return EAS_IntSetStrmParam(pEASData, pStream, PARSER_DATA_TRANSPOSITION, transposition); } - + /*---------------------------------------------------------------------------- * EAS_ParseEvents() *---------------------------------------------------------------------------- @@ -1218,204 +1218,204 @@ EAS_PUBLIC EAS_RESULT EAS_SetTransposition (EAS_DATA_HANDLE pEASData, EAS_HANDLE * * Inputs: * pEASData - buffer for internal EAS data - * endTime - stop parsing if this time is reached - * parseMode - play, locate, or metadata + * endTime - stop parsing if this time is reached + * parseMode - play, locate, or metadata * * Outputs: - * EAS_SUCCESS if PCM data was successfully rendered + * EAS_SUCCESS if PCM data was successfully rendered * *---------------------------------------------------------------------------- */ static EAS_RESULT EAS_ParseEvents (S_EAS_DATA *pEASData, EAS_HANDLE pStream, EAS_U32 endTime, EAS_INT parseMode) { - S_FILE_PARSER_INTERFACE *pParserModule; - EAS_RESULT result; - EAS_I32 parserState; - EAS_BOOL done; - EAS_INT yieldCount = YIELD_EVENT_COUNT; - EAS_U32 time = 0; - - /* does this parser have a time function? */ - pParserModule = pStream->pParserModule; - if (pParserModule->pfTime == NULL) - { - /* check state */ - if ((result = (*pParserModule->pfState)(pEASData, pStream->handle, &parserState)) != EAS_SUCCESS) - return result; - /* if play state, advance time */ - if ((parserState >= EAS_STATE_READY) && (parserState <= EAS_STATE_PAUSING)) - pStream->time += pStream->frameLength; - done = EAS_TRUE; - } - - /* assume we're not done, in case we abort out */ - else - { - pStream->streamFlags &= ~STREAM_FLAGS_PARSED; - done = EAS_FALSE; - } - - while (!done) - { - - /* check for stopped state */ - if ((result = (*pParserModule->pfState)(pEASData, pStream->handle, &parserState)) != EAS_SUCCESS) - return result; - if (parserState > EAS_STATE_PLAY) - { - /* save current time if we're not in play mode */ - if (parseMode != eParserModePlay) - pStream->time = time << 8; - done = EAS_TRUE; - break; - } - - /* get the next event time */ - if (pParserModule->pfTime) - { - if ((result = (*pParserModule->pfTime)(pEASData, pStream->handle, &time)) != EAS_SUCCESS) - return result; - - /* if next event is within this frame, parse it */ - if (time < (endTime >> 8)) - { - - /* parse the next event */ - if (pParserModule->pfEvent) - if ((result = (*pParserModule->pfEvent)(pEASData, pStream->handle, parseMode)) != EAS_SUCCESS) - return result; - } - - /* no more events in this frame, advance time */ - else - { - pStream->time = endTime; - done = EAS_TRUE; - } - } - - /* check for max workload exceeded */ - if (VMCheckWorkload(pEASData->pVoiceMgr)) - { - /* stop even though we may not have parsed - * all the events in this frame. The parser will try to - * catch up on the next frame. - */ - break; - } - - /* give host a chance for an early abort */ - if (--yieldCount == 0) - { - if (EAS_HWYield(pEASData->hwInstData)) - break; - yieldCount = YIELD_EVENT_COUNT; - } - } - - /* if no early abort, parsing is complete for this frame */ - if (done) - pStream->streamFlags |= STREAM_FLAGS_PARSED; - - return EAS_SUCCESS; + S_FILE_PARSER_INTERFACE *pParserModule; + EAS_RESULT result; + EAS_I32 parserState; + EAS_BOOL done; + EAS_INT yieldCount = YIELD_EVENT_COUNT; + EAS_U32 time = 0; + + /* does this parser have a time function? */ + pParserModule = pStream->pParserModule; + if (pParserModule->pfTime == NULL) + { + /* check state */ + if ((result = (*pParserModule->pfState)(pEASData, pStream->handle, &parserState)) != EAS_SUCCESS) + return result; + /* if play state, advance time */ + if ((parserState >= EAS_STATE_READY) && (parserState <= EAS_STATE_PAUSING)) + pStream->time += pStream->frameLength; + done = EAS_TRUE; + } + + /* assume we're not done, in case we abort out */ + else + { + pStream->streamFlags &= ~STREAM_FLAGS_PARSED; + done = EAS_FALSE; + } + + while (!done) + { + + /* check for stopped state */ + if ((result = (*pParserModule->pfState)(pEASData, pStream->handle, &parserState)) != EAS_SUCCESS) + return result; + if (parserState > EAS_STATE_PLAY) + { + /* save current time if we're not in play mode */ + if (parseMode != eParserModePlay) + pStream->time = time << 8; + done = EAS_TRUE; + break; + } + + /* get the next event time */ + if (pParserModule->pfTime) + { + if ((result = (*pParserModule->pfTime)(pEASData, pStream->handle, &time)) != EAS_SUCCESS) + return result; + + /* if next event is within this frame, parse it */ + if (time < (endTime >> 8)) + { + + /* parse the next event */ + if (pParserModule->pfEvent) + if ((result = (*pParserModule->pfEvent)(pEASData, pStream->handle, parseMode)) != EAS_SUCCESS) + return result; + } + + /* no more events in this frame, advance time */ + else + { + pStream->time = endTime; + done = EAS_TRUE; + } + } + + /* check for max workload exceeded */ + if (VMCheckWorkload(pEASData->pVoiceMgr)) + { + /* stop even though we may not have parsed + * all the events in this frame. The parser will try to + * catch up on the next frame. + */ + break; + } + + /* give host a chance for an early abort */ + if (--yieldCount == 0) + { + if (EAS_HWYield(pEASData->hwInstData)) + break; + yieldCount = YIELD_EVENT_COUNT; + } + } + + /* if no early abort, parsing is complete for this frame */ + if (done) + pStream->streamFlags |= STREAM_FLAGS_PARSED; + + return EAS_SUCCESS; } /*---------------------------------------------------------------------------- * EAS_ParseMetaData() *---------------------------------------------------------------------------- - * Purpose: - * + * Purpose: + * * * Inputs: - * pEASData - pointer to overall EAS data structure - * handle - file or stream handle - * playLength - pointer to variable to store the play length (in msecs) - * + * pEASData - pointer to overall EAS data structure + * handle - file or stream handle + * playLength - pointer to variable to store the play length (in msecs) + * * Outputs: - * + * * * Side Effects: - * - resets the parser to the start of the file + * - resets the parser to the start of the file *---------------------------------------------------------------------------- */ EAS_PUBLIC EAS_RESULT EAS_ParseMetaData (EAS_DATA_HANDLE pEASData, EAS_HANDLE pStream, EAS_I32 *playLength) { - S_FILE_PARSER_INTERFACE *pParserModule; - EAS_RESULT result; - EAS_STATE state; - - pParserModule = (S_FILE_PARSER_INTERFACE*) pStream->pParserModule; - if (pParserModule == NULL) - return EAS_ERROR_FEATURE_NOT_AVAILABLE; - - /* check parser state */ - if ((result = (*pParserModule->pfState)(pEASData, pStream->handle, &state)) != EAS_SUCCESS) - return result; - if (state >= EAS_STATE_OPEN) - return EAS_ERROR_NOT_VALID_IN_THIS_STATE; - - /* if parser has metadata function, use that */ - if (pParserModule->pfGetMetaData != NULL) - return pParserModule->pfGetMetaData(pEASData, pStream->handle, playLength); - - /* reset the parser to the beginning */ - if ((result = (*pParserModule->pfReset)(pEASData, pStream->handle)) != EAS_SUCCESS) - return result; - - /* parse the file to end */ - pStream->time = 0; - VMInitWorkload(pEASData->pVoiceMgr); - if ((result = EAS_ParseEvents(pEASData, pStream, 0x7fffffff, eParserModeMetaData)) != EAS_SUCCESS) - return result; - - /* get the parser time */ - if ((result = EAS_GetLocation(pEASData, pStream, playLength)) != EAS_SUCCESS) - return result; - - /* reset the parser to the beginning */ - pStream->time = 0; - return (*pParserModule->pfReset)(pEASData, pStream->handle); + S_FILE_PARSER_INTERFACE *pParserModule; + EAS_RESULT result; + EAS_STATE state; + + pParserModule = (S_FILE_PARSER_INTERFACE*) pStream->pParserModule; + if (pParserModule == NULL) + return EAS_ERROR_FEATURE_NOT_AVAILABLE; + + /* check parser state */ + if ((result = (*pParserModule->pfState)(pEASData, pStream->handle, &state)) != EAS_SUCCESS) + return result; + if (state >= EAS_STATE_OPEN) + return EAS_ERROR_NOT_VALID_IN_THIS_STATE; + + /* if parser has metadata function, use that */ + if (pParserModule->pfGetMetaData != NULL) + return pParserModule->pfGetMetaData(pEASData, pStream->handle, playLength); + + /* reset the parser to the beginning */ + if ((result = (*pParserModule->pfReset)(pEASData, pStream->handle)) != EAS_SUCCESS) + return result; + + /* parse the file to end */ + pStream->time = 0; + VMInitWorkload(pEASData->pVoiceMgr); + if ((result = EAS_ParseEvents(pEASData, pStream, 0x7fffffff, eParserModeMetaData)) != EAS_SUCCESS) + return result; + + /* get the parser time */ + if ((result = EAS_GetLocation(pEASData, pStream, playLength)) != EAS_SUCCESS) + return result; + + /* reset the parser to the beginning */ + pStream->time = 0; + return (*pParserModule->pfReset)(pEASData, pStream->handle); } /*---------------------------------------------------------------------------- * EAS_RegisterMetaDataCallback() *---------------------------------------------------------------------------- - * Purpose: - * Registers a metadata callback function for parsed metadata. + * Purpose: + * Registers a metadata callback function for parsed metadata. * * Inputs: - * pEASData - pointer to overall EAS data structure - * handle - file or stream handle - * cbFunc - pointer to host callback function - * metaDataBuffer - pointer to metadata buffer - * metaDataBufSize - maximum size of the metadata buffer - * + * pEASData - pointer to overall EAS data structure + * handle - file or stream handle + * cbFunc - pointer to host callback function + * metaDataBuffer - pointer to metadata buffer + * metaDataBufSize - maximum size of the metadata buffer + * * Outputs: - * + * * * Side Effects: * *---------------------------------------------------------------------------- */ EAS_PUBLIC EAS_RESULT EAS_RegisterMetaDataCallback ( - EAS_DATA_HANDLE pEASData, - EAS_HANDLE pStream, - EAS_METADATA_CBFUNC cbFunc, - char *metaDataBuffer, - EAS_I32 metaDataBufSize, - EAS_VOID_PTR pUserData) + EAS_DATA_HANDLE pEASData, + EAS_HANDLE pStream, + EAS_METADATA_CBFUNC cbFunc, + char *metaDataBuffer, + EAS_I32 metaDataBufSize, + EAS_VOID_PTR pUserData) { - S_METADATA_CB metadata; - - if (!EAS_StreamReady(pEASData, pStream)) - return EAS_ERROR_NOT_VALID_IN_THIS_STATE; - - /* register callback function */ - metadata.callback = cbFunc; - metadata.buffer = metaDataBuffer; - metadata.bufferSize = metaDataBufSize; - metadata.pUserData = pUserData; - return EAS_SetStreamParameter(pEASData, pStream, PARSER_DATA_METADATA_CB, (EAS_I32) &metadata); + S_METADATA_CB metadata; + + if (!EAS_StreamReady(pEASData, pStream)) + return EAS_ERROR_NOT_VALID_IN_THIS_STATE; + + /* register callback function */ + metadata.callback = cbFunc; + metadata.buffer = metaDataBuffer; + metadata.bufferSize = metaDataBufSize; + metadata.pUserData = pUserData; + return EAS_SetStreamParameter(pEASData, pStream, PARSER_DATA_METADATA_CB, (EAS_I32) &metadata); } /*---------------------------------------------------------------------------- @@ -1426,24 +1426,24 @@ EAS_PUBLIC EAS_RESULT EAS_RegisterMetaDataCallback ( */ EAS_PUBLIC EAS_RESULT EAS_GetNoteCount (EAS_DATA_HANDLE pEASData, EAS_HANDLE pStream, EAS_I32 *pNoteCount) { - if (!EAS_StreamReady(pEASData, pStream)) - return EAS_ERROR_NOT_VALID_IN_THIS_STATE; - return EAS_IntGetStrmParam(pEASData, pStream, PARSER_DATA_NOTE_COUNT, pNoteCount); + if (!EAS_StreamReady(pEASData, pStream)) + return EAS_ERROR_NOT_VALID_IN_THIS_STATE; + return EAS_IntGetStrmParam(pEASData, pStream, PARSER_DATA_NOTE_COUNT, pNoteCount); } /*---------------------------------------------------------------------------- * EAS_CloseFile() *---------------------------------------------------------------------------- - * Purpose: + * Purpose: * Closes an audio file or stream. Playback should have either paused or * completed (EAS_State returns EAS_PAUSED or EAS_STOPPED). * * Inputs: - * pEASData - pointer to overall EAS data structure - * handle - file or stream handle - * + * pEASData - pointer to overall EAS data structure + * handle - file or stream handle + * * Outputs: - * + * * * Side Effects: * @@ -1451,34 +1451,34 @@ EAS_PUBLIC EAS_RESULT EAS_GetNoteCount (EAS_DATA_HANDLE pEASData, EAS_HANDLE pSt */ EAS_PUBLIC EAS_RESULT EAS_CloseFile (EAS_DATA_HANDLE pEASData, EAS_HANDLE pStream) { - S_FILE_PARSER_INTERFACE *pParserModule; - EAS_RESULT result; + S_FILE_PARSER_INTERFACE *pParserModule; + EAS_RESULT result; - /* call the close function */ - pParserModule = (S_FILE_PARSER_INTERFACE*) pStream->pParserModule; - if (pParserModule == NULL) - return EAS_ERROR_FEATURE_NOT_AVAILABLE; + /* call the close function */ + pParserModule = (S_FILE_PARSER_INTERFACE*) pStream->pParserModule; + if (pParserModule == NULL) + return EAS_ERROR_FEATURE_NOT_AVAILABLE; - result = (*pParserModule->pfClose)(pEASData, pStream->handle); + result = (*pParserModule->pfClose)(pEASData, pStream->handle); - /* clear the handle and parser interface pointer */ - pStream->handle = NULL; - pStream->pParserModule = NULL; - return result; -} + /* clear the handle and parser interface pointer */ + pStream->handle = NULL; + pStream->pParserModule = NULL; + return result; +} /*---------------------------------------------------------------------------- * EAS_OpenMIDIStream() *---------------------------------------------------------------------------- - * Purpose: + * Purpose: * Opens a raw MIDI stream allowing the host to route MIDI cable data directly to the synthesizer * * Inputs: - * pEASData - pointer to overall EAS data structure - * pHandle - pointer to variable to hold file or stream handle - * + * pEASData - pointer to overall EAS data structure + * pHandle - pointer to variable to hold file or stream handle + * * Outputs: - * + * * * Side Effects: * @@ -1486,75 +1486,75 @@ EAS_PUBLIC EAS_RESULT EAS_CloseFile (EAS_DATA_HANDLE pEASData, EAS_HANDLE pStrea */ EAS_PUBLIC EAS_RESULT EAS_OpenMIDIStream (EAS_DATA_HANDLE pEASData, EAS_HANDLE *ppStream, EAS_HANDLE streamHandle) { - EAS_RESULT result; - S_INTERACTIVE_MIDI *pMIDIStream; - EAS_INT streamNum; - - /* initialize some pointers */ - *ppStream = NULL; - - /* allocate a stream */ - if ((streamNum = EAS_AllocateStream(pEASData)) < 0) - return EAS_ERROR_MAX_STREAMS_OPEN; - - /* check Configuration Module for S_EAS_DATA allocation */ - if (pEASData->staticMemoryModel) - pMIDIStream = EAS_CMEnumData(EAS_CM_MIDI_STREAM_DATA); - else - pMIDIStream = EAS_HWMalloc(pEASData->hwInstData, sizeof(S_INTERACTIVE_MIDI)); - - /* allocate dynamic memory */ - if (!pMIDIStream) - { - { /* dpp: EAS_ReportEx(_EAS_SEVERITY_FATAL, "Failed to allocate MIDI stream data\n"); */ } - return EAS_ERROR_MALLOC_FAILED; - } - - /* zero the memory to insure complete initialization */ - EAS_HWMemSet(pMIDIStream, 0, sizeof(S_INTERACTIVE_MIDI)); - EAS_InitStream(&pEASData->streams[streamNum], NULL, pMIDIStream); - - /* instantiate a new synthesizer */ - if (streamHandle == NULL) - { - result = VMInitMIDI(pEASData, &pMIDIStream->pSynth); - } - - /* use an existing synthesizer */ - else - { - EAS_I32 value; - result = EAS_GetStreamParameter(pEASData, streamHandle, PARSER_DATA_SYNTH_HANDLE, &value); - pMIDIStream->pSynth = (S_SYNTH*) value; - VMIncRefCount(pMIDIStream->pSynth); - } - if (result != EAS_SUCCESS) - { - EAS_CloseMIDIStream(pEASData, &pEASData->streams[streamNum]); - return result; - } - - /* initialize the MIDI stream data */ - EAS_InitMIDIStream(&pMIDIStream->stream); - - *ppStream = (EAS_HANDLE) &pEASData->streams[streamNum]; - return EAS_SUCCESS; -} + EAS_RESULT result; + S_INTERACTIVE_MIDI *pMIDIStream; + EAS_INT streamNum; + + /* initialize some pointers */ + *ppStream = NULL; + + /* allocate a stream */ + if ((streamNum = EAS_AllocateStream(pEASData)) < 0) + return EAS_ERROR_MAX_STREAMS_OPEN; + + /* check Configuration Module for S_EAS_DATA allocation */ + if (pEASData->staticMemoryModel) + pMIDIStream = EAS_CMEnumData(EAS_CM_MIDI_STREAM_DATA); + else + pMIDIStream = EAS_HWMalloc(pEASData->hwInstData, sizeof(S_INTERACTIVE_MIDI)); + + /* allocate dynamic memory */ + if (!pMIDIStream) + { + { /* dpp: EAS_ReportEx(_EAS_SEVERITY_FATAL, "Failed to allocate MIDI stream data\n"); */ } + return EAS_ERROR_MALLOC_FAILED; + } + + /* zero the memory to insure complete initialization */ + EAS_HWMemSet(pMIDIStream, 0, sizeof(S_INTERACTIVE_MIDI)); + EAS_InitStream(&pEASData->streams[streamNum], NULL, pMIDIStream); + + /* instantiate a new synthesizer */ + if (streamHandle == NULL) + { + result = VMInitMIDI(pEASData, &pMIDIStream->pSynth); + } + + /* use an existing synthesizer */ + else + { + EAS_I32 value; + result = EAS_GetStreamParameter(pEASData, streamHandle, PARSER_DATA_SYNTH_HANDLE, &value); + pMIDIStream->pSynth = (S_SYNTH*) value; + VMIncRefCount(pMIDIStream->pSynth); + } + if (result != EAS_SUCCESS) + { + EAS_CloseMIDIStream(pEASData, &pEASData->streams[streamNum]); + return result; + } + + /* initialize the MIDI stream data */ + EAS_InitMIDIStream(&pMIDIStream->stream); + + *ppStream = (EAS_HANDLE) &pEASData->streams[streamNum]; + return EAS_SUCCESS; +} /*---------------------------------------------------------------------------- * EAS_WriteMIDIStream() *---------------------------------------------------------------------------- - * Purpose: + * Purpose: * Send data to the MIDI stream device * * Inputs: - * pEASData - pointer to overall EAS data structure - * handle - stream handle - * pBuffer - pointer to buffer - * count - number of bytes to write - * + * pEASData - pointer to overall EAS data structure + * handle - stream handle + * pBuffer - pointer to buffer + * count - number of bytes to write + * * Outputs: - * + * * * Side Effects: * @@ -1562,35 +1562,35 @@ EAS_PUBLIC EAS_RESULT EAS_OpenMIDIStream (EAS_DATA_HANDLE pEASData, EAS_HANDLE * */ EAS_PUBLIC EAS_RESULT EAS_WriteMIDIStream (EAS_DATA_HANDLE pEASData, EAS_HANDLE pStream, EAS_U8 *pBuffer, EAS_I32 count) { - S_INTERACTIVE_MIDI *pMIDIStream; - EAS_RESULT result; + S_INTERACTIVE_MIDI *pMIDIStream; + EAS_RESULT result; - pMIDIStream = (S_INTERACTIVE_MIDI*) pStream->handle; + pMIDIStream = (S_INTERACTIVE_MIDI*) pStream->handle; - if (count <= 0) - return EAS_ERROR_PARAMETER_RANGE; + if (count <= 0) + return EAS_ERROR_PARAMETER_RANGE; - /* send the entire buffer */ - while (count--) - { - if ((result = EAS_ParseMIDIStream(pEASData, pMIDIStream->pSynth, &pMIDIStream->stream, *pBuffer++, eParserModePlay)) != EAS_SUCCESS) - return result; - } - return EAS_SUCCESS; + /* send the entire buffer */ + while (count--) + { + if ((result = EAS_ParseMIDIStream(pEASData, pMIDIStream->pSynth, &pMIDIStream->stream, *pBuffer++, eParserModePlay)) != EAS_SUCCESS) + return result; + } + return EAS_SUCCESS; } /*---------------------------------------------------------------------------- * EAS_CloseMIDIStream() *---------------------------------------------------------------------------- - * Purpose: + * Purpose: * Closes a raw MIDI stream * * Inputs: - * pEASData - pointer to overall EAS data structure - * handle - stream handle - * + * pEASData - pointer to overall EAS data structure + * handle - stream handle + * * Outputs: - * + * * * Side Effects: * @@ -1598,37 +1598,37 @@ EAS_PUBLIC EAS_RESULT EAS_WriteMIDIStream (EAS_DATA_HANDLE pEASData, EAS_HANDLE */ EAS_PUBLIC EAS_RESULT EAS_CloseMIDIStream (EAS_DATA_HANDLE pEASData, EAS_HANDLE pStream) { - S_INTERACTIVE_MIDI *pMIDIStream; + S_INTERACTIVE_MIDI *pMIDIStream; - pMIDIStream = (S_INTERACTIVE_MIDI*) pStream->handle; + pMIDIStream = (S_INTERACTIVE_MIDI*) pStream->handle; - /* close synth */ - if (pMIDIStream->pSynth != NULL) - { - VMMIDIShutdown(pEASData, pMIDIStream->pSynth); - pMIDIStream->pSynth = NULL; - } + /* close synth */ + if (pMIDIStream->pSynth != NULL) + { + VMMIDIShutdown(pEASData, pMIDIStream->pSynth); + pMIDIStream->pSynth = NULL; + } - /* release allocated memory */ - if (!pEASData->staticMemoryModel) - EAS_HWFree(((S_EAS_DATA*) pEASData)->hwInstData, pMIDIStream); + /* release allocated memory */ + if (!pEASData->staticMemoryModel) + EAS_HWFree(((S_EAS_DATA*) pEASData)->hwInstData, pMIDIStream); - pStream->handle = NULL; - return EAS_SUCCESS; + pStream->handle = NULL; + return EAS_SUCCESS; } /*---------------------------------------------------------------------------- * EAS_State() *---------------------------------------------------------------------------- - * Purpose: - * Returns the state of an audio file or stream. + * Purpose: + * Returns the state of an audio file or stream. * * Inputs: - * pEASData - pointer to overall EAS data structure - * handle - file or stream handle - * + * pEASData - pointer to overall EAS data structure + * handle - file or stream handle + * * Outputs: - * + * * * Side Effects: * @@ -1636,53 +1636,53 @@ EAS_PUBLIC EAS_RESULT EAS_CloseMIDIStream (EAS_DATA_HANDLE pEASData, EAS_HANDLE */ EAS_PUBLIC EAS_RESULT EAS_State (EAS_DATA_HANDLE pEASData, EAS_HANDLE pStream, EAS_STATE *pState) { - S_FILE_PARSER_INTERFACE *pParserModule; - EAS_RESULT result; - - /* call the parser to return state */ - pParserModule = (S_FILE_PARSER_INTERFACE*) pStream->pParserModule; - if (pParserModule == NULL) - return EAS_ERROR_FEATURE_NOT_AVAILABLE; - - if ((result = (*pParserModule->pfState)(pEASData, pStream->handle, pState)) != EAS_SUCCESS) - return result; - - /* if repeat count is set for this parser, mask the stopped state from the application */ - if (pStream->repeatCount && (*pState == EAS_STATE_STOPPED)) - *pState = EAS_STATE_PLAY; - - /* if we're not ready or playing, we don't need to hide state from host */ - if (*pState > EAS_STATE_PLAY) - return EAS_SUCCESS; - - /* if stream is about to be paused, report it as paused */ - if (pStream->streamFlags & STREAM_FLAGS_PAUSE) - { - if (pStream->streamFlags & STREAM_FLAGS_LOCATE) - *pState = EAS_STATE_PAUSED; - else - *pState = EAS_STATE_PAUSING; - } - - /* if stream is about to resume, report it as playing */ - if (pStream->streamFlags & STREAM_FLAGS_RESUME) - *pState = EAS_STATE_PLAY; - - return EAS_SUCCESS; + S_FILE_PARSER_INTERFACE *pParserModule; + EAS_RESULT result; + + /* call the parser to return state */ + pParserModule = (S_FILE_PARSER_INTERFACE*) pStream->pParserModule; + if (pParserModule == NULL) + return EAS_ERROR_FEATURE_NOT_AVAILABLE; + + if ((result = (*pParserModule->pfState)(pEASData, pStream->handle, pState)) != EAS_SUCCESS) + return result; + + /* if repeat count is set for this parser, mask the stopped state from the application */ + if (pStream->repeatCount && (*pState == EAS_STATE_STOPPED)) + *pState = EAS_STATE_PLAY; + + /* if we're not ready or playing, we don't need to hide state from host */ + if (*pState > EAS_STATE_PLAY) + return EAS_SUCCESS; + + /* if stream is about to be paused, report it as paused */ + if (pStream->streamFlags & STREAM_FLAGS_PAUSE) + { + if (pStream->streamFlags & STREAM_FLAGS_LOCATE) + *pState = EAS_STATE_PAUSED; + else + *pState = EAS_STATE_PAUSING; + } + + /* if stream is about to resume, report it as playing */ + if (pStream->streamFlags & STREAM_FLAGS_RESUME) + *pState = EAS_STATE_PLAY; + + return EAS_SUCCESS; } /*---------------------------------------------------------------------------- * EAS_SetPolyphony() *---------------------------------------------------------------------------- - * Purpose: + * Purpose: * Set the polyphony of the stream. A value of 0 allows the stream * to use all voices (set by EAS_SetSynthPolyphony). * * Inputs: - * pEASData - pointer to overall EAS data structure - * streamHandle - handle returned by EAS_OpenFile - * polyphonyCount - the desired polyphony count - * + * pEASData - pointer to overall EAS data structure + * streamHandle - handle returned by EAS_OpenFile + * polyphonyCount - the desired polyphony count + * * Outputs: * * Side Effects: @@ -1691,22 +1691,22 @@ EAS_PUBLIC EAS_RESULT EAS_State (EAS_DATA_HANDLE pEASData, EAS_HANDLE pStream, E */ EAS_PUBLIC EAS_RESULT EAS_SetPolyphony (EAS_DATA_HANDLE pEASData, EAS_HANDLE pStream, EAS_I32 polyphonyCount) { - if (!EAS_StreamReady(pEASData, pStream)) - return EAS_ERROR_NOT_VALID_IN_THIS_STATE; - return EAS_IntSetStrmParam(pEASData, pStream, PARSER_DATA_POLYPHONY, polyphonyCount); + if (!EAS_StreamReady(pEASData, pStream)) + return EAS_ERROR_NOT_VALID_IN_THIS_STATE; + return EAS_IntSetStrmParam(pEASData, pStream, PARSER_DATA_POLYPHONY, polyphonyCount); } /*---------------------------------------------------------------------------- * EAS_GetPolyphony() *---------------------------------------------------------------------------- - * Purpose: + * Purpose: * Returns the current polyphony setting of the stream * * Inputs: - * pEASData - pointer to overall EAS data structure - * streamHandle - handle returned by EAS_OpenFile - * pPolyphonyCount - pointer to variable to receive polyphony count - * + * pEASData - pointer to overall EAS data structure + * streamHandle - handle returned by EAS_OpenFile + * pPolyphonyCount - pointer to variable to receive polyphony count + * * Outputs: * * Side Effects: @@ -1715,24 +1715,24 @@ EAS_PUBLIC EAS_RESULT EAS_SetPolyphony (EAS_DATA_HANDLE pEASData, EAS_HANDLE pSt */ EAS_PUBLIC EAS_RESULT EAS_GetPolyphony (EAS_DATA_HANDLE pEASData, EAS_HANDLE pStream, EAS_I32 *pPolyphonyCount) { - if (!EAS_StreamReady(pEASData, pStream)) - return EAS_ERROR_NOT_VALID_IN_THIS_STATE; - return EAS_IntGetStrmParam(pEASData, pStream, PARSER_DATA_POLYPHONY, pPolyphonyCount); + if (!EAS_StreamReady(pEASData, pStream)) + return EAS_ERROR_NOT_VALID_IN_THIS_STATE; + return EAS_IntGetStrmParam(pEASData, pStream, PARSER_DATA_POLYPHONY, pPolyphonyCount); } /*---------------------------------------------------------------------------- * EAS_SetSynthPolyphony() *---------------------------------------------------------------------------- - * Purpose: + * Purpose: * Set the polyphony of the synth . Value must be >= 1 and <= the * maximum number of voices. This function will pin the polyphony * at those limits * * Inputs: - * pEASData - pointer to overall EAS data structure - * synthNum - synthesizer number (0 = onboard, 1 = DSP) - * polyphonyCount - the desired polyphony count - * + * pEASData - pointer to overall EAS data structure + * synthNum - synthesizer number (0 = onboard, 1 = DSP) + * polyphonyCount - the desired polyphony count + * * Outputs: * * Side Effects: @@ -1741,20 +1741,20 @@ EAS_PUBLIC EAS_RESULT EAS_GetPolyphony (EAS_DATA_HANDLE pEASData, EAS_HANDLE pSt */ EAS_PUBLIC EAS_RESULT EAS_SetSynthPolyphony (EAS_DATA_HANDLE pEASData, EAS_I32 synthNum, EAS_I32 polyphonyCount) { - return VMSetSynthPolyphony(pEASData->pVoiceMgr, synthNum, polyphonyCount); + return VMSetSynthPolyphony(pEASData->pVoiceMgr, synthNum, polyphonyCount); } /*---------------------------------------------------------------------------- * EAS_GetSynthPolyphony() *---------------------------------------------------------------------------- - * Purpose: + * Purpose: * Returns the current polyphony setting of the synth * * Inputs: - * pEASData - pointer to overall EAS data structure - * synthNum - synthesizer number (0 = onboard, 1 = DSP) - * pPolyphonyCount - pointer to variable to receive polyphony count - * + * pEASData - pointer to overall EAS data structure + * synthNum - synthesizer number (0 = onboard, 1 = DSP) + * pPolyphonyCount - pointer to variable to receive polyphony count + * * Outputs: * * Side Effects: @@ -1763,23 +1763,23 @@ EAS_PUBLIC EAS_RESULT EAS_SetSynthPolyphony (EAS_DATA_HANDLE pEASData, EAS_I32 s */ EAS_PUBLIC EAS_RESULT EAS_GetSynthPolyphony (EAS_DATA_HANDLE pEASData, EAS_I32 synthNum, EAS_I32 *pPolyphonyCount) { - return VMGetSynthPolyphony(pEASData->pVoiceMgr, synthNum, pPolyphonyCount); + return VMGetSynthPolyphony(pEASData->pVoiceMgr, synthNum, pPolyphonyCount); } /*---------------------------------------------------------------------------- * EAS_SetPriority() *---------------------------------------------------------------------------- - * Purpose: + * Purpose: * Set the priority of the stream. Determines which stream's voices * are stolen when there are insufficient voices for all notes. * Value must be in the range of 1-15, lower values are higher * priority. * * Inputs: - * pEASData - pointer to overall EAS data structure - * streamHandle - handle returned by EAS_OpenFile - * polyphonyCount - the desired polyphony count - * + * pEASData - pointer to overall EAS data structure + * streamHandle - handle returned by EAS_OpenFile + * polyphonyCount - the desired polyphony count + * * Outputs: * * Side Effects: @@ -1788,22 +1788,22 @@ EAS_PUBLIC EAS_RESULT EAS_GetSynthPolyphony (EAS_DATA_HANDLE pEASData, EAS_I32 s */ EAS_PUBLIC EAS_RESULT EAS_SetPriority (EAS_DATA_HANDLE pEASData, EAS_HANDLE pStream, EAS_I32 priority) { - if (!EAS_StreamReady(pEASData, pStream)) - return EAS_ERROR_NOT_VALID_IN_THIS_STATE; - return EAS_IntSetStrmParam(pEASData, pStream, PARSER_DATA_PRIORITY, priority); + if (!EAS_StreamReady(pEASData, pStream)) + return EAS_ERROR_NOT_VALID_IN_THIS_STATE; + return EAS_IntSetStrmParam(pEASData, pStream, PARSER_DATA_PRIORITY, priority); } /*---------------------------------------------------------------------------- * EAS_GetPriority() *---------------------------------------------------------------------------- - * Purpose: + * Purpose: * Returns the current priority setting of the stream * * Inputs: - * pEASData - pointer to overall EAS data structure - * streamHandle - handle returned by EAS_OpenFile - * pPriority - pointer to variable to receive priority - * + * pEASData - pointer to overall EAS data structure + * streamHandle - handle returned by EAS_OpenFile + * pPriority - pointer to variable to receive priority + * * Outputs: * * Side Effects: @@ -1812,22 +1812,22 @@ EAS_PUBLIC EAS_RESULT EAS_SetPriority (EAS_DATA_HANDLE pEASData, EAS_HANDLE pStr */ EAS_PUBLIC EAS_RESULT EAS_GetPriority (EAS_DATA_HANDLE pEASData, EAS_HANDLE pStream, EAS_I32 *pPriority) { - if (!EAS_StreamReady(pEASData, pStream)) - return EAS_ERROR_NOT_VALID_IN_THIS_STATE; - return EAS_IntGetStrmParam(pEASData, pStream, PARSER_DATA_PRIORITY, pPriority); + if (!EAS_StreamReady(pEASData, pStream)) + return EAS_ERROR_NOT_VALID_IN_THIS_STATE; + return EAS_IntGetStrmParam(pEASData, pStream, PARSER_DATA_PRIORITY, pPriority); } /*---------------------------------------------------------------------------- * EAS_SetVolume() *---------------------------------------------------------------------------- - * Purpose: + * Purpose: * Set the master gain for the mix engine in 1dB increments * * Inputs: - * pEASData - pointer to overall EAS data structure - * volume - the desired master gain (100 is max) - * handle - file or stream handle - * + * pEASData - pointer to overall EAS data structure + * volume - the desired master gain (100 is max) + * handle - file or stream handle + * * Outputs: * * @@ -1838,58 +1838,58 @@ EAS_PUBLIC EAS_RESULT EAS_GetPriority (EAS_DATA_HANDLE pEASData, EAS_HANDLE pStr */ EAS_PUBLIC EAS_RESULT EAS_SetVolume (EAS_DATA_HANDLE pEASData, EAS_HANDLE pStream, EAS_I32 volume) { - EAS_I16 gain; - - /* check range */ - if ((volume < 0) || (volume > EAS_MAX_VOLUME)) - return EAS_ERROR_PARAMETER_RANGE; - - /* stream volume */ - if (pStream != NULL) - { - EAS_I32 gainOffset; - EAS_RESULT result; - - if (!EAS_StreamReady(pEASData, pStream)) - return EAS_ERROR_NOT_VALID_IN_THIS_STATE; - - /* get gain offset */ - pStream->volume = (EAS_U8) volume; - result = EAS_GetStreamParameter(pEASData, pStream, PARSER_DATA_GAIN_OFFSET, &gainOffset); - if (result == EAS_SUCCESS) - volume += gainOffset; - - /* set stream volume */ - gain = EAS_VolumeToGain(volume - STREAM_VOLUME_HEADROOM); - - /* convert to linear scalar */ - return EAS_IntSetStrmParam(pEASData, pStream, PARSER_DATA_VOLUME, gain); - } - - /* master volume */ - pEASData->masterVolume = (EAS_U8) volume; + EAS_I16 gain; + + /* check range */ + if ((volume < 0) || (volume > EAS_MAX_VOLUME)) + return EAS_ERROR_PARAMETER_RANGE; + + /* stream volume */ + if (pStream != NULL) + { + EAS_I32 gainOffset; + EAS_RESULT result; + + if (!EAS_StreamReady(pEASData, pStream)) + return EAS_ERROR_NOT_VALID_IN_THIS_STATE; + + /* get gain offset */ + pStream->volume = (EAS_U8) volume; + result = EAS_GetStreamParameter(pEASData, pStream, PARSER_DATA_GAIN_OFFSET, &gainOffset); + if (result == EAS_SUCCESS) + volume += gainOffset; + + /* set stream volume */ + gain = EAS_VolumeToGain(volume - STREAM_VOLUME_HEADROOM); + + /* convert to linear scalar */ + return EAS_IntSetStrmParam(pEASData, pStream, PARSER_DATA_VOLUME, gain); + } + + /* master volume */ + pEASData->masterVolume = (EAS_U8) volume; #if (NUM_OUTPUT_CHANNELS == 1) - /* leave 3dB headroom for mono output */ - volume -= 3; + /* leave 3dB headroom for mono output */ + volume -= 3; #endif - gain = EAS_VolumeToGain(volume - STREAM_VOLUME_HEADROOM); - pEASData->masterGain = gain; - return EAS_SUCCESS; + gain = EAS_VolumeToGain(volume - STREAM_VOLUME_HEADROOM); + pEASData->masterGain = gain; + return EAS_SUCCESS; } /*---------------------------------------------------------------------------- * EAS_GetVolume() *---------------------------------------------------------------------------- - * Purpose: + * Purpose: * Returns the master volume for the synthesizer. The default volume setting is * 50. The volume range is 0 to 100; * * Inputs: - * pEASData - pointer to overall EAS data structure - * volume - the desired master volume - * handle - file or stream handle - * + * pEASData - pointer to overall EAS data structure + * volume - the desired master volume + * handle - file or stream handle + * * Outputs: * * @@ -1900,28 +1900,28 @@ EAS_PUBLIC EAS_RESULT EAS_SetVolume (EAS_DATA_HANDLE pEASData, EAS_HANDLE pStrea */ EAS_PUBLIC EAS_I32 EAS_GetVolume (EAS_DATA_HANDLE pEASData, EAS_HANDLE pStream) { - if (pStream == NULL) - return pEASData->masterVolume; - - if (!EAS_StreamReady(pEASData, pStream)) - return EAS_ERROR_NOT_VALID_IN_THIS_STATE; - return pStream->volume; + if (pStream == NULL) + return pEASData->masterVolume; + + if (!EAS_StreamReady(pEASData, pStream)) + return EAS_ERROR_NOT_VALID_IN_THIS_STATE; + return pStream->volume; } /*---------------------------------------------------------------------------- * EAS_SetMaxLoad() *---------------------------------------------------------------------------- - * Purpose: + * Purpose: * Sets the maximum workload the parsers will do in a single call to * EAS_Render. The units are currently arbitrary, but should correlate * well to the actual CPU cycles consumed. The primary effect is to * reduce the occasional peaks in CPU cycles consumed when parsing - * dense parts of a MIDI score. + * dense parts of a MIDI score. * * Inputs: - * pEASData - handle to data for this instance - * maxLoad - the desired maximum workload - * + * pEASData - handle to data for this instance + * maxLoad - the desired maximum workload + * * Outputs: * * Side Effects: @@ -1930,8 +1930,8 @@ EAS_PUBLIC EAS_I32 EAS_GetVolume (EAS_DATA_HANDLE pEASData, EAS_HANDLE pStream) */ EAS_PUBLIC EAS_RESULT EAS_SetMaxLoad (EAS_DATA_HANDLE pEASData, EAS_I32 maxLoad) { - VMSetWorkload(pEASData->pVoiceMgr, maxLoad); - return EAS_SUCCESS; + VMSetWorkload(pEASData->pVoiceMgr, maxLoad); + return EAS_SUCCESS; } /*---------------------------------------------------------------------------- @@ -1941,31 +1941,31 @@ EAS_PUBLIC EAS_RESULT EAS_SetMaxLoad (EAS_DATA_HANDLE pEASData, EAS_I32 maxLoad) * use PCM streaming. * * Inputs: - * pEASData - pointer to overall EAS data structure - * streamHandle - handle returned by EAS_OpenFile - * maxNumStreams - maximum number of PCM streams + * pEASData - pointer to overall EAS data structure + * streamHandle - handle returned by EAS_OpenFile + * maxNumStreams - maximum number of PCM streams *---------------------------------------------------------------------------- */ EAS_PUBLIC EAS_RESULT EAS_SetMaxPCMStreams (EAS_DATA_HANDLE pEASData, EAS_HANDLE pStream, EAS_I32 maxNumStreams) { - if (!EAS_StreamReady(pEASData, pStream)) - return EAS_ERROR_NOT_VALID_IN_THIS_STATE; - return EAS_IntSetStrmParam(pEASData, pStream, PARSER_DATA_MAX_PCM_STREAMS, maxNumStreams); + if (!EAS_StreamReady(pEASData, pStream)) + return EAS_ERROR_NOT_VALID_IN_THIS_STATE; + return EAS_IntSetStrmParam(pEASData, pStream, PARSER_DATA_MAX_PCM_STREAMS, maxNumStreams); } /*---------------------------------------------------------------------------- * EAS_Locate() *---------------------------------------------------------------------------- - * Purpose: + * Purpose: * Locate into the file associated with the handle. * * Inputs: * pEASData - pointer to overall EAS data structure - * handle - file handle - * milliseconds - playback offset from start of file in milliseconds - * + * handle - file handle + * milliseconds - playback offset from start of file in milliseconds + * * Outputs: - * + * * * Side Effects: * the actual offset will be quantized to the closest update period, typically @@ -1976,75 +1976,75 @@ EAS_PUBLIC EAS_RESULT EAS_SetMaxPCMStreams (EAS_DATA_HANDLE pEASData, EAS_HANDLE */ EAS_PUBLIC EAS_RESULT EAS_Locate (EAS_DATA_HANDLE pEASData, EAS_HANDLE pStream, EAS_I32 milliseconds, EAS_BOOL offset) { - S_FILE_PARSER_INTERFACE *pParserModule; - EAS_RESULT result; - EAS_U32 requestedTime; - EAS_STATE state; - - /* get pointer to parser function table */ - pParserModule = (S_FILE_PARSER_INTERFACE*) pStream->pParserModule; - if (pParserModule == NULL) - return EAS_ERROR_FEATURE_NOT_AVAILABLE; - - if ((result = (*pParserModule->pfState)(pEASData, pStream->handle, &state)) != EAS_SUCCESS) - return result; - if (state >= EAS_STATE_OPEN) - return EAS_ERROR_NOT_VALID_IN_THIS_STATE; - - /* handle offset and limit to start of file */ - /*lint -e{704} use shift for performance*/ - if (offset) - milliseconds += (EAS_I32) pStream->time >> 8; - if (milliseconds < 0) - milliseconds = 0; - - /* check to see if the request is different from the current time */ - requestedTime = (EAS_U32) milliseconds; - if (requestedTime == (pStream->time >> 8)) - return EAS_SUCCESS; - - /* set the locate flag */ - pStream->streamFlags |= STREAM_FLAGS_LOCATE; - - /* use the parser locate function, if available */ - if (pParserModule->pfLocate != NULL) - { - EAS_BOOL parserLocate = EAS_FALSE; - result = pParserModule->pfLocate(pEASData, pStream->handle, (EAS_I32) requestedTime, &parserLocate); - if (!parserLocate) - { - if (result == EAS_SUCCESS) - pStream->time = requestedTime << 8; - return result; - } - } - - /* if we were paused and not going to resume, set pause request flag */ - if (((state == EAS_STATE_PAUSING) || (state == EAS_STATE_PAUSED)) && ((pStream->streamFlags & STREAM_FLAGS_RESUME) == 0)) - pStream->streamFlags |= STREAM_FLAGS_PAUSE; - - /* reset the synth and parser */ - if ((result = (*pParserModule->pfReset)(pEASData, pStream->handle)) != EAS_SUCCESS) - return result; - pStream->time = 0; - - /* locating forward, clear parsed flag and parse data until we get to the requested location */ - if ((result = EAS_ParseEvents(pEASData, pStream, requestedTime << 8, eParserModeLocate)) != EAS_SUCCESS) - return result; - - return EAS_SUCCESS; + S_FILE_PARSER_INTERFACE *pParserModule; + EAS_RESULT result; + EAS_U32 requestedTime; + EAS_STATE state; + + /* get pointer to parser function table */ + pParserModule = (S_FILE_PARSER_INTERFACE*) pStream->pParserModule; + if (pParserModule == NULL) + return EAS_ERROR_FEATURE_NOT_AVAILABLE; + + if ((result = (*pParserModule->pfState)(pEASData, pStream->handle, &state)) != EAS_SUCCESS) + return result; + if (state >= EAS_STATE_OPEN) + return EAS_ERROR_NOT_VALID_IN_THIS_STATE; + + /* handle offset and limit to start of file */ + /*lint -e{704} use shift for performance*/ + if (offset) + milliseconds += (EAS_I32) pStream->time >> 8; + if (milliseconds < 0) + milliseconds = 0; + + /* check to see if the request is different from the current time */ + requestedTime = (EAS_U32) milliseconds; + if (requestedTime == (pStream->time >> 8)) + return EAS_SUCCESS; + + /* set the locate flag */ + pStream->streamFlags |= STREAM_FLAGS_LOCATE; + + /* use the parser locate function, if available */ + if (pParserModule->pfLocate != NULL) + { + EAS_BOOL parserLocate = EAS_FALSE; + result = pParserModule->pfLocate(pEASData, pStream->handle, (EAS_I32) requestedTime, &parserLocate); + if (!parserLocate) + { + if (result == EAS_SUCCESS) + pStream->time = requestedTime << 8; + return result; + } + } + + /* if we were paused and not going to resume, set pause request flag */ + if (((state == EAS_STATE_PAUSING) || (state == EAS_STATE_PAUSED)) && ((pStream->streamFlags & STREAM_FLAGS_RESUME) == 0)) + pStream->streamFlags |= STREAM_FLAGS_PAUSE; + + /* reset the synth and parser */ + if ((result = (*pParserModule->pfReset)(pEASData, pStream->handle)) != EAS_SUCCESS) + return result; + pStream->time = 0; + + /* locating forward, clear parsed flag and parse data until we get to the requested location */ + if ((result = EAS_ParseEvents(pEASData, pStream, requestedTime << 8, eParserModeLocate)) != EAS_SUCCESS) + return result; + + return EAS_SUCCESS; } /*---------------------------------------------------------------------------- * EAS_GetLocation() *---------------------------------------------------------------------------- - * Purpose: - * Returns the current playback offset + * Purpose: + * Returns the current playback offset * * Inputs: - * pEASData - pointer to overall EAS data structure - * handle - file handle - * + * pEASData - pointer to overall EAS data structure + * handle - file handle + * * Outputs: * The offset in milliseconds from the start of the current sequence, quantized * to the nearest update period. Actual resolution is typically 5.9 ms. @@ -2056,22 +2056,22 @@ EAS_PUBLIC EAS_RESULT EAS_Locate (EAS_DATA_HANDLE pEASData, EAS_HANDLE pStream, /*lint -esym(715, pEASData) reserved for future use */ EAS_PUBLIC EAS_RESULT EAS_GetLocation (EAS_DATA_HANDLE pEASData, EAS_HANDLE pStream, EAS_I32 *pTime) { - if (!EAS_StreamReady(pEASData, pStream)) - return EAS_ERROR_NOT_VALID_IN_THIS_STATE; + if (!EAS_StreamReady(pEASData, pStream)) + return EAS_ERROR_NOT_VALID_IN_THIS_STATE; - *pTime = pStream->time >> 8; - return EAS_SUCCESS; + *pTime = pStream->time >> 8; + return EAS_SUCCESS; } /*---------------------------------------------------------------------------- * EAS_GetRenderTime() *---------------------------------------------------------------------------- - * Purpose: - * Returns the current playback offset + * Purpose: + * Returns the current playback offset * * Inputs: - * pEASData - pointer to overall EAS data structure - * + * pEASData - pointer to overall EAS data structure + * * Outputs: * Gets the render time clock in msecs. * @@ -2081,24 +2081,24 @@ EAS_PUBLIC EAS_RESULT EAS_GetLocation (EAS_DATA_HANDLE pEASData, EAS_HANDLE pStr */ EAS_PUBLIC EAS_RESULT EAS_GetRenderTime (EAS_DATA_HANDLE pEASData, EAS_I32 *pTime) { - *pTime = pEASData->renderTime >> 8; - return EAS_SUCCESS; + *pTime = pEASData->renderTime >> 8; + return EAS_SUCCESS; } /*---------------------------------------------------------------------------- * EAS_Pause() *---------------------------------------------------------------------------- - * Purpose: + * Purpose: * Pauses the playback of the data associated with this handle. The audio * is gracefully ramped down to prevent clicks and pops. It may take several * buffers of audio before the audio is muted. * * Inputs: - * psEASData - pointer to overall EAS data structure - * handle - file or stream handle - * + * psEASData - pointer to overall EAS data structure + * handle - file or stream handle + * * Outputs: - * + * * * Side Effects: * @@ -2107,56 +2107,56 @@ EAS_PUBLIC EAS_RESULT EAS_GetRenderTime (EAS_DATA_HANDLE pEASData, EAS_I32 *pTim */ EAS_PUBLIC EAS_RESULT EAS_Pause (EAS_DATA_HANDLE pEASData, EAS_HANDLE pStream) { - S_FILE_PARSER_INTERFACE *pParserModule; - EAS_STATE state; - EAS_RESULT result; - - pParserModule = (S_FILE_PARSER_INTERFACE*) pStream->pParserModule; - if (pParserModule == NULL) - return EAS_ERROR_FEATURE_NOT_AVAILABLE; - - /* check for valid state */ - result = pParserModule->pfState(pEASData, pStream->handle, &state); - if (result == EAS_SUCCESS) - { - if ((state != EAS_STATE_PLAY) && (state != EAS_STATE_READY) && ((pStream->streamFlags & STREAM_FLAGS_RESUME) == 0)) - return EAS_ERROR_NOT_VALID_IN_THIS_STATE; - - /* make sure parser implements pause */ - if (pParserModule->pfPause == NULL) - result = EAS_ERROR_NOT_IMPLEMENTED; - - /* clear resume flag */ - pStream->streamFlags &= ~STREAM_FLAGS_RESUME; - - /* set pause flag */ - pStream->streamFlags |= STREAM_FLAGS_PAUSE; - -#if 0 - /* pause the stream */ - if (pParserModule->pfPause) - result = pParserModule->pfPause(pEASData, pStream->handle); - else - result = EAS_ERROR_NOT_IMPLEMENTED; -#endif - } - - return result; + S_FILE_PARSER_INTERFACE *pParserModule; + EAS_STATE state; + EAS_RESULT result; + + pParserModule = (S_FILE_PARSER_INTERFACE*) pStream->pParserModule; + if (pParserModule == NULL) + return EAS_ERROR_FEATURE_NOT_AVAILABLE; + + /* check for valid state */ + result = pParserModule->pfState(pEASData, pStream->handle, &state); + if (result == EAS_SUCCESS) + { + if ((state != EAS_STATE_PLAY) && (state != EAS_STATE_READY) && ((pStream->streamFlags & STREAM_FLAGS_RESUME) == 0)) + return EAS_ERROR_NOT_VALID_IN_THIS_STATE; + + /* make sure parser implements pause */ + if (pParserModule->pfPause == NULL) + result = EAS_ERROR_NOT_IMPLEMENTED; + + /* clear resume flag */ + pStream->streamFlags &= ~STREAM_FLAGS_RESUME; + + /* set pause flag */ + pStream->streamFlags |= STREAM_FLAGS_PAUSE; + +#if 0 + /* pause the stream */ + if (pParserModule->pfPause) + result = pParserModule->pfPause(pEASData, pStream->handle); + else + result = EAS_ERROR_NOT_IMPLEMENTED; +#endif + } + + return result; } /*---------------------------------------------------------------------------- * EAS_Resume() *---------------------------------------------------------------------------- - * Purpose: + * Purpose: * Resumes the playback of the data associated with this handle. The audio * is gracefully ramped up to prevent clicks and pops. * * Inputs: - * psEASData - pointer to overall EAS data structure - * handle - file or stream handle - * + * psEASData - pointer to overall EAS data structure + * handle - file or stream handle + * * Outputs: - * + * * * Side Effects: * @@ -2165,59 +2165,59 @@ EAS_PUBLIC EAS_RESULT EAS_Pause (EAS_DATA_HANDLE pEASData, EAS_HANDLE pStream) */ EAS_PUBLIC EAS_RESULT EAS_Resume (EAS_DATA_HANDLE pEASData, EAS_HANDLE pStream) { - S_FILE_PARSER_INTERFACE *pParserModule; - EAS_STATE state; - EAS_RESULT result; - - pParserModule = (S_FILE_PARSER_INTERFACE*) pStream->pParserModule; - if (pParserModule == NULL) - return EAS_ERROR_FEATURE_NOT_AVAILABLE; - - /* check for valid state */ - result = pParserModule->pfState(pEASData, pStream->handle, &state); - if (result == EAS_SUCCESS) - { - if ((state != EAS_STATE_PAUSED) && (state != EAS_STATE_PAUSING) && ((pStream->streamFlags & STREAM_FLAGS_PAUSE) == 0)) - return EAS_ERROR_NOT_VALID_IN_THIS_STATE; - - /* make sure parser implements this function */ - if (pParserModule->pfResume == NULL) - result = EAS_ERROR_NOT_IMPLEMENTED; - - /* clear pause flag */ - pStream->streamFlags &= ~STREAM_FLAGS_PAUSE; - - /* set resume flag */ - pStream->streamFlags |= STREAM_FLAGS_RESUME; - -#if 0 - /* resume the stream */ - if (pParserModule->pfResume) - result = pParserModule->pfResume(pEASData, pStream->handle); - else - result = EAS_ERROR_NOT_IMPLEMENTED; -#endif - } - - return result; + S_FILE_PARSER_INTERFACE *pParserModule; + EAS_STATE state; + EAS_RESULT result; + + pParserModule = (S_FILE_PARSER_INTERFACE*) pStream->pParserModule; + if (pParserModule == NULL) + return EAS_ERROR_FEATURE_NOT_AVAILABLE; + + /* check for valid state */ + result = pParserModule->pfState(pEASData, pStream->handle, &state); + if (result == EAS_SUCCESS) + { + if ((state != EAS_STATE_PAUSED) && (state != EAS_STATE_PAUSING) && ((pStream->streamFlags & STREAM_FLAGS_PAUSE) == 0)) + return EAS_ERROR_NOT_VALID_IN_THIS_STATE; + + /* make sure parser implements this function */ + if (pParserModule->pfResume == NULL) + result = EAS_ERROR_NOT_IMPLEMENTED; + + /* clear pause flag */ + pStream->streamFlags &= ~STREAM_FLAGS_PAUSE; + + /* set resume flag */ + pStream->streamFlags |= STREAM_FLAGS_RESUME; + +#if 0 + /* resume the stream */ + if (pParserModule->pfResume) + result = pParserModule->pfResume(pEASData, pStream->handle); + else + result = EAS_ERROR_NOT_IMPLEMENTED; +#endif + } + + return result; } /*---------------------------------------------------------------------------- * EAS_GetParameter() *---------------------------------------------------------------------------- - * Purpose: + * Purpose: * Set the parameter of a module. See E_MODULES for a list of modules * and the header files of the modules for a list of parameters. * * Inputs: - * psEASData - pointer to overall EAS data structure - * handle - file or stream handle - * module - enumerated module number - * param - enumerated parameter number - * pValue - pointer to variable to receive parameter value - * + * psEASData - pointer to overall EAS data structure + * handle - file or stream handle + * module - enumerated module number + * param - enumerated parameter number + * pValue - pointer to variable to receive parameter value + * * Outputs: - * + * * * Side Effects: * @@ -2227,32 +2227,32 @@ EAS_PUBLIC EAS_RESULT EAS_Resume (EAS_DATA_HANDLE pEASData, EAS_HANDLE pStream) EAS_PUBLIC EAS_RESULT EAS_GetParameter (EAS_DATA_HANDLE pEASData, EAS_I32 module, EAS_I32 param, EAS_I32 *pValue) { - if (module >= NUM_EFFECTS_MODULES) - return EAS_ERROR_INVALID_MODULE; - - if (pEASData->effectsModules[module].effectData == NULL) - return EAS_ERROR_INVALID_MODULE; - - return (*pEASData->effectsModules[module].effect->pFGetParam) - (pEASData->effectsModules[module].effectData, param, pValue); + if (module >= NUM_EFFECTS_MODULES) + return EAS_ERROR_INVALID_MODULE; + + if (pEASData->effectsModules[module].effectData == NULL) + return EAS_ERROR_INVALID_MODULE; + + return (*pEASData->effectsModules[module].effect->pFGetParam) + (pEASData->effectsModules[module].effectData, param, pValue); } /*---------------------------------------------------------------------------- * EAS_SetParameter() *---------------------------------------------------------------------------- - * Purpose: + * Purpose: * Set the parameter of a module. See E_MODULES for a list of modules * and the header files of the modules for a list of parameters. * * Inputs: - * psEASData - pointer to overall EAS data structure - * handle - file or stream handle - * module - enumerated module number - * param - enumerated parameter number - * value - new parameter value - * + * psEASData - pointer to overall EAS data structure + * handle - file or stream handle + * module - enumerated module number + * param - enumerated parameter number + * value - new parameter value + * * Outputs: - * + * * * Side Effects: * @@ -2262,28 +2262,28 @@ EAS_PUBLIC EAS_RESULT EAS_GetParameter (EAS_DATA_HANDLE pEASData, EAS_I32 module EAS_PUBLIC EAS_RESULT EAS_SetParameter (EAS_DATA_HANDLE pEASData, EAS_I32 module, EAS_I32 param, EAS_I32 value) { - if (module >= NUM_EFFECTS_MODULES) - return EAS_ERROR_INVALID_MODULE; - - if (pEASData->effectsModules[module].effectData == NULL) - return EAS_ERROR_INVALID_MODULE; + if (module >= NUM_EFFECTS_MODULES) + return EAS_ERROR_INVALID_MODULE; - return (*pEASData->effectsModules[module].effect->pFSetParam) - (pEASData->effectsModules[module].effectData, param, value); + if (pEASData->effectsModules[module].effectData == NULL) + return EAS_ERROR_INVALID_MODULE; + + return (*pEASData->effectsModules[module].effect->pFSetParam) + (pEASData->effectsModules[module].effectData, param, value); } -#ifdef _METRICS_ENABLED +#ifdef _METRICS_ENABLED /*---------------------------------------------------------------------------- * EAS_MetricsReport() *---------------------------------------------------------------------------- - * Purpose: + * Purpose: * Displays the current metrics through the metrics interface. * * Inputs: - * p - instance data handle - * + * p - instance data handle + * * Outputs: - * + * * * Side Effects: * @@ -2291,23 +2291,23 @@ EAS_PUBLIC EAS_RESULT EAS_SetParameter (EAS_DATA_HANDLE pEASData, EAS_I32 module */ EAS_PUBLIC EAS_RESULT EAS_MetricsReport (EAS_DATA_HANDLE pEASData) { - if (!pEASData->pMetricsModule) - return EAS_ERROR_INVALID_MODULE; + if (!pEASData->pMetricsModule) + return EAS_ERROR_INVALID_MODULE; - return (*pEASData->pMetricsModule->pfReport)(pEASData->pMetricsData); + return (*pEASData->pMetricsModule->pfReport)(pEASData->pMetricsData); } /*---------------------------------------------------------------------------- * EAS_MetricsReset() *---------------------------------------------------------------------------- - * Purpose: + * Purpose: * Resets the metrics. * * Inputs: - * p - instance data handle - * + * p - instance data handle + * * Outputs: - * + * * * Side Effects: * @@ -2316,25 +2316,25 @@ EAS_PUBLIC EAS_RESULT EAS_MetricsReport (EAS_DATA_HANDLE pEASData) EAS_PUBLIC EAS_RESULT EAS_MetricsReset (EAS_DATA_HANDLE pEASData) { - if (!pEASData->pMetricsModule) - return EAS_ERROR_INVALID_MODULE; + if (!pEASData->pMetricsModule) + return EAS_ERROR_INVALID_MODULE; - return (*pEASData->pMetricsModule->pfReset)(pEASData->pMetricsData); + return (*pEASData->pMetricsModule->pfReset)(pEASData->pMetricsData); } #endif /*---------------------------------------------------------------------------- * EAS_SetSoundLibrary() *---------------------------------------------------------------------------- - * Purpose: + * Purpose: * Sets the location of the sound library. * * Inputs: - * pEASData - instance data handle - * pSoundLib - pointer to sound library - * + * pEASData - instance data handle + * pSoundLib - pointer to sound library + * * Outputs: - * + * * * Side Effects: * @@ -2342,14 +2342,14 @@ EAS_PUBLIC EAS_RESULT EAS_MetricsReset (EAS_DATA_HANDLE pEASData) */ EAS_PUBLIC EAS_RESULT EAS_SetSoundLibrary (EAS_DATA_HANDLE pEASData, EAS_HANDLE pStream, EAS_SNDLIB_HANDLE pSndLib) { - if (pStream) - { - if (!EAS_StreamReady(pEASData, pStream)) - return EAS_ERROR_NOT_VALID_IN_THIS_STATE; - return EAS_IntSetStrmParam(pEASData, pStream, PARSER_DATA_EAS_LIBRARY, (EAS_I32) pSndLib); - } - - return VMSetGlobalEASLib(pEASData->pVoiceMgr, pSndLib); + if (pStream) + { + if (!EAS_StreamReady(pEASData, pStream)) + return EAS_ERROR_NOT_VALID_IN_THIS_STATE; + return EAS_IntSetStrmParam(pEASData, pStream, PARSER_DATA_EAS_LIBRARY, (EAS_I32) pSndLib); + } + + return VMSetGlobalEASLib(pEASData->pVoiceMgr, pSndLib); } /*---------------------------------------------------------------------------- @@ -2365,14 +2365,14 @@ EAS_PUBLIC EAS_RESULT EAS_SetSoundLibrary (EAS_DATA_HANDLE pEASData, EAS_HANDLE * it make take slightly longer to process the EAS_OpenFile request. * * Inputs: - * pEASData - instance data handle - * searchFlag - search flag (EAS_TRUE or EAS_FALSE) + * pEASData - instance data handle + * searchFlag - search flag (EAS_TRUE or EAS_FALSE) *---------------------------------------------------------------------------- */ EAS_PUBLIC EAS_RESULT EAS_SetHeaderSearchFlag (EAS_DATA_HANDLE pEASData, EAS_BOOL searchFlag) { - pEASData->searchHeaderFlag = (EAS_BOOL8) searchFlag; - return EAS_SUCCESS; + pEASData->searchHeaderFlag = (EAS_BOOL8) searchFlag; + return EAS_SUCCESS; } /*---------------------------------------------------------------------------- @@ -2383,29 +2383,29 @@ EAS_PUBLIC EAS_RESULT EAS_SetHeaderSearchFlag (EAS_DATA_HANDLE pEASData, EAS_BOO * default play mode (usually straight playback) is always zero. * * Inputs: - * pEASData - instance data handle - * handle - file or stream handle - * playMode - play mode (see file parser for specifics) + * pEASData - instance data handle + * handle - file or stream handle + * playMode - play mode (see file parser for specifics) *---------------------------------------------------------------------------- */ EAS_PUBLIC EAS_RESULT EAS_SetPlayMode (EAS_DATA_HANDLE pEASData, EAS_HANDLE pStream, EAS_I32 playMode) { - return EAS_IntSetStrmParam(pEASData, pStream, PARSER_DATA_PLAY_MODE, playMode); + return EAS_IntSetStrmParam(pEASData, pStream, PARSER_DATA_PLAY_MODE, playMode); } #ifdef DLS_SYNTHESIZER /*---------------------------------------------------------------------------- * EAS_LoadDLSCollection() *---------------------------------------------------------------------------- - * Purpose: + * Purpose: * Sets the location of the sound library. * * Inputs: - * pEASData - instance data handle - * pSoundLib - pointer to sound library - * + * pEASData - instance data handle + * pSoundLib - pointer to sound library + * * Outputs: - * + * * * Side Effects: * @@ -2413,37 +2413,37 @@ EAS_PUBLIC EAS_RESULT EAS_SetPlayMode (EAS_DATA_HANDLE pEASData, EAS_HANDLE pStr */ EAS_PUBLIC EAS_RESULT EAS_LoadDLSCollection (EAS_DATA_HANDLE pEASData, EAS_HANDLE pStream, EAS_FILE_LOCATOR locator) { - EAS_FILE_HANDLE fileHandle; - EAS_RESULT result; - EAS_DLSLIB_HANDLE pDLS; - - if (pStream != NULL) - { - if (!EAS_StreamReady(pEASData, pStream)) - return EAS_ERROR_NOT_VALID_IN_THIS_STATE; - } - - /* open the file */ - if ((result = EAS_HWOpenFile(pEASData->hwInstData, locator, &fileHandle, EAS_FILE_READ)) != EAS_SUCCESS) - return result; - - /* parse the file */ - result = DLSParser(pEASData->hwInstData, fileHandle, 0, &pDLS); - EAS_HWCloseFile(pEASData->hwInstData, fileHandle); - - if (result == EAS_SUCCESS) - { - - /* if a stream pStream is specified, point it to the DLS collection */ - if (pStream) - result = EAS_IntSetStrmParam(pEASData, pStream, PARSER_DATA_DLS_COLLECTION, (EAS_I32) pDLS); - - /* global DLS load */ - else - result = VMSetGlobalDLSLib(pEASData, pDLS); - } - - return result; + EAS_FILE_HANDLE fileHandle; + EAS_RESULT result; + EAS_DLSLIB_HANDLE pDLS; + + if (pStream != NULL) + { + if (!EAS_StreamReady(pEASData, pStream)) + return EAS_ERROR_NOT_VALID_IN_THIS_STATE; + } + + /* open the file */ + if ((result = EAS_HWOpenFile(pEASData->hwInstData, locator, &fileHandle, EAS_FILE_READ)) != EAS_SUCCESS) + return result; + + /* parse the file */ + result = DLSParser(pEASData->hwInstData, fileHandle, 0, &pDLS); + EAS_HWCloseFile(pEASData->hwInstData, fileHandle); + + if (result == EAS_SUCCESS) + { + + /* if a stream pStream is specified, point it to the DLS collection */ + if (pStream) + result = EAS_IntSetStrmParam(pEASData, pStream, PARSER_DATA_DLS_COLLECTION, (EAS_I32) pDLS); + + /* global DLS load */ + else + result = VMSetGlobalDLSLib(pEASData, pDLS); + } + + return result; } #endif @@ -2451,56 +2451,56 @@ EAS_PUBLIC EAS_RESULT EAS_LoadDLSCollection (EAS_DATA_HANDLE pEASData, EAS_HANDL /*---------------------------------------------------------------------------- * EAS_RegExtAudioCallback() *---------------------------------------------------------------------------- - * Purpose: + * Purpose: * Registers callback functions for audio events. * * Inputs: - * pEASData - pointer to overall EAS data structure - * handle - file or stream handle - * cbProgChgFunc - pointer to host callback function for program change - * cbEventFunc - pointer to host callback functio for note events - * + * pEASData - pointer to overall EAS data structure + * handle - file or stream handle + * cbProgChgFunc - pointer to host callback function for program change + * cbEventFunc - pointer to host callback functio for note events + * * Outputs: - * + * * * Side Effects: * *---------------------------------------------------------------------------- */ EAS_PUBLIC EAS_RESULT EAS_RegExtAudioCallback (EAS_DATA_HANDLE pEASData, - EAS_HANDLE pStream, - EAS_VOID_PTR pInstData, - EAS_EXT_PRG_CHG_FUNC cbProgChgFunc, - EAS_EXT_EVENT_FUNC cbEventFunc) + EAS_HANDLE pStream, + EAS_VOID_PTR pInstData, + EAS_EXT_PRG_CHG_FUNC cbProgChgFunc, + EAS_EXT_EVENT_FUNC cbEventFunc) { - S_SYNTH *pSynth; - - if (!EAS_StreamReady(pEASData, pStream)) - return EAS_ERROR_NOT_VALID_IN_THIS_STATE; - - if (EAS_GetStreamParameter(pEASData, pStream, PARSER_DATA_SYNTH_HANDLE, (EAS_I32*) &pSynth) != EAS_SUCCESS) - return EAS_ERROR_INVALID_PARAMETER; - - if (pSynth == NULL) - return EAS_ERROR_INVALID_PARAMETER; - - VMRegExtAudioCallback(pSynth, pInstData, cbProgChgFunc, cbEventFunc); - return EAS_SUCCESS; + S_SYNTH *pSynth; + + if (!EAS_StreamReady(pEASData, pStream)) + return EAS_ERROR_NOT_VALID_IN_THIS_STATE; + + if (EAS_GetStreamParameter(pEASData, pStream, PARSER_DATA_SYNTH_HANDLE, (EAS_I32*) &pSynth) != EAS_SUCCESS) + return EAS_ERROR_INVALID_PARAMETER; + + if (pSynth == NULL) + return EAS_ERROR_INVALID_PARAMETER; + + VMRegExtAudioCallback(pSynth, pInstData, cbProgChgFunc, cbEventFunc); + return EAS_SUCCESS; } /*---------------------------------------------------------------------------- * EAS_GetMIDIControllers() *---------------------------------------------------------------------------- - * Purpose: + * Purpose: * Returns the current state of MIDI controllers on the requested channel. * * Inputs: - * pEASData - pointer to overall EAS data structure - * handle - file or stream handle - * pControl - pointer to structure to receive data - * + * pEASData - pointer to overall EAS data structure + * handle - file or stream handle + * pControl - pointer to structure to receive data + * * Outputs: - * + * * * Side Effects: * @@ -2508,19 +2508,19 @@ EAS_PUBLIC EAS_RESULT EAS_RegExtAudioCallback (EAS_DATA_HANDLE pEASData, */ EAS_PUBLIC EAS_RESULT EAS_GetMIDIControllers (EAS_DATA_HANDLE pEASData, EAS_HANDLE pStream, EAS_U8 channel, S_MIDI_CONTROLLERS *pControl) { - S_SYNTH *pSynth; - - if (!EAS_StreamReady(pEASData, pStream)) - return EAS_ERROR_NOT_VALID_IN_THIS_STATE; - - if (EAS_GetStreamParameter(pEASData, pStream, PARSER_DATA_SYNTH_HANDLE, (EAS_I32*) &pSynth) != EAS_SUCCESS) - return EAS_ERROR_INVALID_PARAMETER; - - if (pSynth == NULL) - return EAS_ERROR_INVALID_PARAMETER; - - VMGetMIDIControllers(pSynth, channel, pControl); - return EAS_SUCCESS; + S_SYNTH *pSynth; + + if (!EAS_StreamReady(pEASData, pStream)) + return EAS_ERROR_NOT_VALID_IN_THIS_STATE; + + if (EAS_GetStreamParameter(pEASData, pStream, PARSER_DATA_SYNTH_HANDLE, (EAS_I32*) &pSynth) != EAS_SUCCESS) + return EAS_ERROR_INVALID_PARAMETER; + + if (pSynth == NULL) + return EAS_ERROR_INVALID_PARAMETER; + + VMGetMIDIControllers(pSynth, channel, pControl); + return EAS_SUCCESS; } #endif @@ -2528,15 +2528,15 @@ EAS_PUBLIC EAS_RESULT EAS_GetMIDIControllers (EAS_DATA_HANDLE pEASData, EAS_HAND /*---------------------------------------------------------------------------- * EAS_SetFrameBuffer() *---------------------------------------------------------------------------- - * Purpose: + * Purpose: * Sets the frame buffer pointer passed to the IPC communications functions * * Inputs: - * pEASData - instance data handle - * locator - file locator - * + * pEASData - instance data handle + * locator - file locator + * * Outputs: - * + * * * Side Effects: * May overlay instruments in the GM sound set @@ -2545,9 +2545,9 @@ EAS_PUBLIC EAS_RESULT EAS_GetMIDIControllers (EAS_DATA_HANDLE pEASData, EAS_HAND */ EAS_PUBLIC EAS_RESULT EAS_SetFrameBuffer (EAS_DATA_HANDLE pEASData, EAS_FRAME_BUFFER_HANDLE pFrameBuffer) { - if (pEASData->pVoiceMgr) - pEASData->pVoiceMgr->pFrameBuffer = pFrameBuffer; - return EAS_SUCCESS; + if (pEASData->pVoiceMgr) + pEASData->pVoiceMgr->pFrameBuffer = pFrameBuffer; + return EAS_SUCCESS; } #endif @@ -2558,44 +2558,44 @@ EAS_PUBLIC EAS_RESULT EAS_SetFrameBuffer (EAS_DATA_HANDLE pEASData, EAS_FRAME_BU * position. Returns offset to start of sequence. * * Inputs: - * pEASData - pointer to EAS persistent data object - * fileHandle - file handle - * searchString - pointer to search sequence - * len - length of search sequence - * pOffset - pointer to variable to store offset to sequence + * pEASData - pointer to EAS persistent data object + * fileHandle - file handle + * searchString - pointer to search sequence + * len - length of search sequence + * pOffset - pointer to variable to store offset to sequence * * Returns EAS_EOF if end-of-file is reached *---------------------------------------------------------------------------- */ EAS_RESULT EAS_SearchFile (S_EAS_DATA *pEASData, EAS_FILE_HANDLE fileHandle, const EAS_U8 *searchString, EAS_I32 len, EAS_I32 *pOffset) { - EAS_RESULT result; - EAS_INT index; - EAS_U8 c; - - *pOffset = -1; - index = 0; - for (;;) - { - result = EAS_HWGetByte(pEASData->hwInstData, fileHandle, &c); - if (result != EAS_SUCCESS) - return result; - if (c == searchString[index]) - { - index++; - if (index == 4) - { - result = EAS_HWFilePos(pEASData->hwInstData, fileHandle, pOffset); - if (result != EAS_SUCCESS) - return result; - *pOffset -= len; - break; - } - } - else - index = 0; - } - return EAS_SUCCESS; + EAS_RESULT result; + EAS_INT index; + EAS_U8 c; + + *pOffset = -1; + index = 0; + for (;;) + { + result = EAS_HWGetByte(pEASData->hwInstData, fileHandle, &c); + if (result != EAS_SUCCESS) + return result; + if (c == searchString[index]) + { + index++; + if (index == 4) + { + result = EAS_HWFilePos(pEASData->hwInstData, fileHandle, pOffset); + if (result != EAS_SUCCESS) + return result; + *pOffset -= len; + break; + } + } + else + index = 0; + } + return EAS_SUCCESS; } |