From 6c33443944b24b4b44990ce8cc7c18dee0a3edc6 Mon Sep 17 00:00:00 2001
From: Glenn Maynard <gmaynard@users.sourceforge.net>
Date: Thu, 18 Sep 2003 21:10:57 +0000
Subject: [PATCH] Simplify.

---
 stepmania/src/RageSoundReader_WAV.cpp | 59 ++++++++-------------------
 stepmania/src/RageSoundReader_WAV.h   | 13 +-----
 2 files changed, 19 insertions(+), 53 deletions(-)

diff --git a/stepmania/src/RageSoundReader_WAV.cpp b/stepmania/src/RageSoundReader_WAV.cpp
index 294c8a96ea..ad6b1428ed 100644
--- a/stepmania/src/RageSoundReader_WAV.cpp
+++ b/stepmania/src/RageSoundReader_WAV.cpp
@@ -46,11 +46,6 @@ enum
 	FMT_ADPCM =2    /* ADPCM compressed waveform data. */
 };
 
-struct ADPCMCOEFSET
-{
-	Sint16 iCoef1, iCoef2;
-};
-
 /* Call this to convert milliseconds to an actual byte position, based on audio data characteristics. */
 Uint32 RageSoundReader_WAV::ConvertMsToBytePos(int BytesPerSample, int channels, Uint32 ms) const
 {
@@ -132,37 +127,14 @@ bool RageSoundReader_WAV::read_uint8(FILE *rw, Uint8 *ui8) const
 
 RageSoundReader_WAV::adpcm_t::adpcm_t()
 {
-	memset( this, 0, sizeof(*this) );
+	cbSize = 0;
+	memset( blockheaders, 0, sizeof(blockheaders) );
+	wSamplesPerBlock = 0;
+	samples_left_in_block = 0;
+	nibble_state = 0;
+	nibble = 0;
 }
 
-RageSoundReader_WAV::adpcm_t::adpcm_t( const adpcm_t &cpy )
-{
-	memset( this, 0, sizeof(*this) );
-
-	this->cbSize = cpy.cbSize;
-	memcpy( this->blockheaders, cpy.blockheaders, sizeof(this->blockheaders) );
-	this->wSamplesPerBlock = cpy.wSamplesPerBlock;
-	this->wNumCoef = cpy.wNumCoef;
-	this->samples_left_in_block = cpy.samples_left_in_block;
-	this->nibble_state = cpy.nibble_state;
-	this->nibble = cpy.nibble;
-	Alloc();
-}
-
-void RageSoundReader_WAV::adpcm_t::Alloc()
-{
-	Dealloc();
-
-	ASSERT( wNumCoef != 0 );
-
-	aCoef = new ADPCMCOEFSET[wNumCoef];
-}
-
-void RageSoundReader_WAV::adpcm_t::Dealloc()
-{
-	delete [] aCoef;
-	aCoef = NULL;
-}
 
 bool RageSoundReader_WAV::read_fmt_chunk()
 {
@@ -177,14 +149,17 @@ bool RageSoundReader_WAV::read_fmt_chunk()
     {
 		RETURN_IF_MACRO(!read_le16(rw, &adpcm.cbSize), false);
 		RETURN_IF_MACRO(!read_le16(rw, &adpcm.wSamplesPerBlock), false);
-		RETURN_IF_MACRO(!read_le16(rw, &adpcm.wNumCoef), false);
+		Uint16 NumCoef;
+		RETURN_IF_MACRO(!read_le16(rw, &NumCoef), false);
 
-		adpcm.Alloc();
-
-		for (int i = 0; i < adpcm.wNumCoef; i++)
+		for ( int i = 0; i < NumCoef; i++ )
 		{
-			RETURN_IF_MACRO(!read_le16(rw, &adpcm.aCoef[i].iCoef1), false);
-			RETURN_IF_MACRO(!read_le16(rw, &adpcm.aCoef[i].iCoef2), false);
+			Sint16 c1, c2;
+			RETURN_IF_MACRO(!read_le16(rw, &c1), false);
+			RETURN_IF_MACRO(!read_le16(rw, &c2), false);
+
+			adpcm.Coef1.push_back( c1 );
+			adpcm.Coef2.push_back( c2 );
 		}
 	}
 
@@ -319,8 +294,8 @@ bool RageSoundReader_WAV::decode_adpcm_sample_frame()
 	Uint8 nib = adpcm.nibble;
 	for (int i = 0; i < this->fmt.wChannels; i++)
 	{
-		const Sint16 iCoef1 = adpcm.aCoef[headers[i].bPredictor].iCoef1;
-		const Sint16 iCoef2 = adpcm.aCoef[headers[i].bPredictor].iCoef2;
+		const Sint16 iCoef1 = adpcm.Coef1[headers[i].bPredictor];
+		const Sint16 iCoef2 = adpcm.Coef2[headers[i].bPredictor];
 		const Sint32 lPredSamp = ((headers[i].iSamp[0] * iCoef1) +
 			(headers[i].iSamp[1] * iCoef2)) / FIXED_POINT_COEF_BASE;
 
diff --git a/stepmania/src/RageSoundReader_WAV.h b/stepmania/src/RageSoundReader_WAV.h
index 4efe051b63..662cc1f231 100644
--- a/stepmania/src/RageSoundReader_WAV.h
+++ b/stepmania/src/RageSoundReader_WAV.h
@@ -4,10 +4,6 @@
 #include "RageSoundReader_FileReader.h"
 #include "SDL_utils.h"
 
-struct fmt_t;
-struct ADPCMCOEFSET;
-struct ADPCMBLOCKHEADER;
-
 class RageSoundReader_WAV: public SoundReader_FileReader
 {
     FILE *rw;
@@ -31,8 +27,7 @@ class RageSoundReader_WAV: public SoundReader_FileReader
 	{
 		Uint16 cbSize;
 		Uint16 wSamplesPerBlock;
-		Uint16 wNumCoef;
-		ADPCMCOEFSET *aCoef;
+		vector<Sint16> Coef1, Coef2;
 
 		ADPCMBLOCKHEADER blockheaders[2]; /* 2 channels */
 		Uint32 samples_left_in_block;
@@ -40,12 +35,8 @@ class RageSoundReader_WAV: public SoundReader_FileReader
 		Sint8 nibble;
 
 		adpcm_t();
-		~adpcm_t() { Dealloc(); }
-		adpcm_t( const adpcm_t &cpy );
-		void Alloc();
-		void Dealloc();
 	};
-	struct adpcm_t adpcm;
+	adpcm_t adpcm;
 	CString filename;
 
 	enum DataType_t { FORMAT_PCM=0, FORMAT_ADPCM=1 } DataType;