// for finding memory leaks in debug mode with Visual Studio #if defined _DEBUG && defined _MSC_VER#include <crtdbg.h>#endif #include <stdio.h>#include <string.h>#include <stdint.h>#include <stdbool.h>#include "pt2_textout.h"#include "pt2_sampler.h"#include "pt2_audio.h"#include "pt2_visuals.h"#include "pt2_helpers.h"#include "pt2_config.h"#include "pt2_sampling.h"#include "pt2_downsample2x.h"#include "pt2_askbox.h"#include "pt2_replayer.h" enum{	SAMPLETYPE_RAW,	SAMPLETYPE_IFF,	SAMPLETYPE_AIFF,	SAMPLETYPE_WAV,	SAMPLETYPE_FLAC}; bool loadRAWSample(FILE *f, uint32_t filesize, moduleSample_t *s);bool loadIFFSample(FILE *f, uint32_t filesize, moduleSample_t *s);bool loadAIFFSample(FILE *f, uint32_t filesize, moduleSample_t *s);bool loadWAVSample(FILE *f, uint32_t filesize, moduleSample_t *s);bool loadFLACSample(FILE *f, uint32_t filesize, moduleSample_t *s); static void setSampleTextFromFilename(moduleSample_t *s, char *entryName, const char *ext){	int32_t extLen = (int32_t)strlen(ext);	int32_t nameLen = (int32_t)strlen(entryName); 	// don't include file extension (if present)	if (nameLen >= extLen && !_strnicmp(&entryName[nameLen-extLen], ext, extLen))		nameLen -= extLen; 	// copy over filename to sample name first	for (int32_t i = 0; i < 21; i++)		s->text[i] = (i < nameLen) ? (char)entryName[i] : '\0'; 	s->text[21] = '\0';	s->text[22] = '\0';} bool loadSample(UNICHAR *fileName, char *entryName){	if (editor.sampleZero)	{		statusNotSampleZero();		return false;	} 	FILE *f = UNICHAR_FOPEN(fileName, "rb");	if (f == NULL)	{		displayErrorMsg("FILE I/O ERROR !");		return false;	} 	uint32_t filesize;	fseek(f, 0, SEEK_END);	filesize = (uint32_t)ftell(f);	rewind(f); 	// defaults to RAW if no format was identified	uint8_t sampleType = SAMPLETYPE_RAW; 	// first, check heades before we eventually load as RAW	if (filesize > 16)	{		uint32_t ID;		fread(&ID, 4, 1, f); 		if (ID == 0x43614C66) // "fLaC" (XXX: weak detection)		{			sampleType = SAMPLETYPE_FLAC;		}		else if (ID == 0x46464952) // "RIFF" (WAV)		{			fseek(f, 4, SEEK_CUR);			fread(&ID, 4, 1, f); 			if (ID == 0x45564157) // "WAVE"				sampleType = SAMPLETYPE_WAV;		}		else if (ID == 0x4D524F46) // "FORM" (IFF/AIFF)		{			fseek(f, 4, SEEK_CUR);			fread(&ID, 4, 1, f); 			// check if it's an Amiga IFF sample			if (ID == 0x58565338 || ID == 0x56533631) // "8SVX" (normal) and "16SV" (FT2 sample)			{				sampleType = SAMPLETYPE_IFF;			} 			// check if it's an AIFF sample			else if (ID == 0x46464941) // "AIFF"			{				sampleType = SAMPLETYPE_AIFF;			} 			else if (ID == 0x43464941) // "AIFC" (compressed AIFF)			{				fclose(f);				displayErrorMsg("UNSUPPORTED AIFF!");				return false;			}		}	} 	moduleSample_t *s = &song->samples[editor.currSample]; 	// we're not ready to load the sample (error message is shown in the loaders) 	rewind(f); 	bool result = false;	switch (sampleType)	{		case SAMPLETYPE_RAW:			result = loadRAWSample(f, filesize, s);		break; 		case SAMPLETYPE_IFF:			setSampleTextFromFilename(s, entryName, ".iff");			result = loadIFFSample(f, filesize, s); 		break; 		case SAMPLETYPE_AIFF:			setSampleTextFromFilename(s, entryName, ".aiff");			result = loadAIFFSample(f, filesize, s);		break; 		case SAMPLETYPE_WAV:			setSampleTextFromFilename(s, entryName, ".wav");			result = loadWAVSample(f, filesize, s);		break; 		case SAMPLETYPE_FLAC:			setSampleTextFromFilename(s, entryName, ".flac");			result = loadFLACSample(f, filesize, s);		break; 		default: break;	} 	fclose(f); 	if (result == true)	{		// sample load was successful 		if (s->length > config.maxSampleLength)			s->length = config.maxSampleLength; 		if (s->loopStart+s->loopLength > s->length)		{			s->loopStart = 0;			s->loopLength = 2;		} 		// zero out rest of sample (if not full length)		if (s->length < config.maxSampleLength)			memset(&song->sampleData[s->offset + s->length], 0, config.maxSampleLength - s->length); 		editor.sampleZero = false;		editor.samplePos = 0; 		fixSampleBeep(s);		fillSampleRedoBuffer(editor.currSample); 		if (ui.samplingBoxShown)		{			removeSamplingBox();			ui.samplingBoxShown = false;		} 		updateCurrSample();		updateWindowTitle(MOD_IS_MODIFIED);	} 	return result;}