X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/4d6306eb4da8cdac4b5dee9784959672c233eec8..2356708db31b737c6eae53c2316b642aa5a2e68d:/utils/wxMMedia/sndpcm.cpp?ds=sidebyside

diff --git a/utils/wxMMedia/sndpcm.cpp b/utils/wxMMedia/sndpcm.cpp
index a1c5be0cf0..f40fcadedc 100644
--- a/utils/wxMMedia/sndpcm.cpp
+++ b/utils/wxMMedia/sndpcm.cpp
@@ -1,9 +1,17 @@
+////////////////////////////////////////////////////////////////////////////////
+// Name:       sndpcm.cpp
+// Purpose:    wxMMedia
+// Author:     Guilhem Lavaux
+// Created:    1998
+// Updated:    1999
+// Copyright:  (C) 1997, 1998, 1999, Guilhem Lavaux
+// License:    wxWindows license
+////////////////////////////////////////////////////////////////////////////////
 #ifdef __GNUG__
 #pragma implementation "sndpcm.h"
 #endif
 #include "sndsnd.h"
 #include "sndpcm.h"
-#include <dmalloc.h>
 
 #define WX_BIG_ENDIAN 0
 
@@ -11,8 +19,7 @@ wxSoundPcmCodec::wxSoundPcmCodec()
   : wxSoundCodec()
 {
   m_orig_format.SetCodecCreate(FALSE);
-  m_orig_format.SetCodecNo(1);
-  m_char_bool = FALSE;
+  m_orig_format.SetCodecNo(WXSOUND_PCM);
 }
 
 wxSoundPcmCodec::~wxSoundPcmCodec()
@@ -31,7 +38,6 @@ wxSoundDataFormat wxSoundPcmCodec::GetPreferredFormat(int codec) const
   wxSoundDataFormat prefFormat;
 
   prefFormat = m_orig_format;
-  prefFormat.SetCodecNo(WXSOUND_PCM);
   return prefFormat;
 }
 
@@ -41,10 +47,8 @@ wxSoundDataFormat wxSoundPcmCodec::GetPreferredFormat(int codec) const
 
 void wxSoundPcmCodec::Decode()
 {
-  InitMode(DECODING);
   if (m_io_format == m_orig_format) {
     CopyToOutput();
-    ExitMode();
     return;
   }
 
@@ -61,7 +65,6 @@ void wxSoundPcmCodec::Decode()
   default:
     break;
   }
-  ExitMode();
 }
 
 // ---------------------------------------------------------------------------
@@ -69,20 +72,16 @@ void wxSoundPcmCodec::Decode()
 
 #define GET() (m_in_sound->GetChar())
 #define PUT(c) (m_out_sound->PutChar(c))
-#define OUT_ERROR() (out->LastError() == wxStream_NOERROR)
-#define IN_ERROR() (in->LastError() == wxStream_NOERROR)
 
 void wxSoundPcmCodec::InputSign8()
 {
   unsigned char signer = 0;
-  wxStreamBase *in = m_out_sound->Stream(), *out = m_in_sound->Stream();
 
   if (m_io_format.GetSign() != m_orig_format.GetSign())
     signer = 128;
 
-  while (IN_ERROR() && OUT_ERROR())
+  while (StreamOk())
     PUT(GET() + signer);
-
 }
 
 // ---------------------------------------------------------------------------
@@ -91,9 +90,8 @@ void wxSoundPcmCodec::InputSign8()
 void wxSoundPcmCodec::InputSwapAndSign16()
 {
   unsigned short signer1 = 0, signer2 = 0;
-  wxStreamBase *in = m_out_sound->Stream(), *out = m_in_sound->Stream();
   bool swap = (m_io_format.GetByteOrder() != m_orig_format.GetByteOrder());
-  char temp;
+  register char temp, temp2;
 
   if (m_io_format.GetSign() != m_orig_format.GetSign()) {
     if (m_io_format.GetByteOrder() == wxSND_SAMPLE_LE)
@@ -103,22 +101,25 @@ void wxSoundPcmCodec::InputSwapAndSign16()
   }
 
   if (swap) {
-    while (IN_ERROR() && OUT_ERROR()) {
-      temp = GET() ^ signer1;
-      PUT(GET() ^ signer2);
-      if (OUT_ERROR()) {
-        m_char_bool = TRUE;
-        m_char_stack = temp;
+    while (StreamOk()) {
+      temp = GET();
+      temp2 = GET();
+      PUT(temp2 ^ signer2);
+      if (!StreamOk()) {
+        m_in_sound->WriteBack(temp);
+        m_in_sound->WriteBack(temp2);
         break;
       }
-      PUT(temp);
+      PUT(temp ^ signer1);
     }
   } else {
-    while (IN_ERROR() && OUT_ERROR()) {
-      PUT(GET() ^ signer1);
-      if (OUT_ERROR()) {
-        m_char_bool = TRUE;
-        m_char_stack = temp;
+    while (StreamOk()) {
+      temp = GET();
+      temp2 = GET();
+      PUT(temp ^ signer1);
+      if (!StreamOk()) {
+        m_in_sound->WriteBack(temp);
+        m_in_sound->WriteBack(temp2);
         break;
       }
       PUT(GET() ^ signer2);
@@ -132,13 +133,12 @@ void wxSoundPcmCodec::InputSwapAndSign16()
 
 void wxSoundPcmCodec::OutputSign8()
 {
-  wxStreamBase *in = m_out_sound->Stream(), *out = m_in_sound->Stream();
   unsigned char signer = 0;
 
   if (m_io_format.GetSign() != m_orig_format.GetSign())
     signer = 128;
 
-  while (IN_ERROR() && OUT_ERROR())
+  while (StreamOk())
     PUT((char)(GET() + signer));
 }
 
@@ -148,14 +148,7 @@ void wxSoundPcmCodec::OutputSwapAndSign16()
 {
   bool swap = (m_io_format.GetByteOrder() != m_orig_format.GetByteOrder());
   unsigned short signer1 = 0, signer2 = 0;
-  char temp;
-  wxStreamBase *in = m_out_sound->Stream(), *out = m_in_sound->Stream();
-
-  if (m_char_bool) {
-    PUT(GET());
-    PUT(m_char_stack);
-    m_char_bool = FALSE;
-  }
+  register char temp, temp2;
 
   if (m_io_format.GetSign() != m_orig_format.GetSign())
     if (m_io_format.GetByteOrder() == wxSND_SAMPLE_LE)
@@ -164,25 +157,28 @@ void wxSoundPcmCodec::OutputSwapAndSign16()
       signer2 = 0x80;
 
   if (swap) {
-    while (IN_ERROR()) {
+    while (StreamOk()) {
       temp = GET();
-      PUT(GET() ^ signer1);
-      if (OUT_ERROR()) {
-        m_char_stack = temp ^ signer2;
-        m_char_bool = TRUE;
+      temp2 = GET();
+      PUT(temp2 ^ signer1);
+      if (!StreamOk()) {
+        m_in_sound->WriteBack(temp);
+        m_in_sound->WriteBack(temp2);
         break;
       }
       PUT(temp ^ signer2);
     }
   } else {
-    while (IN_ERROR()) {
-      PUT(GET() ^ signer1);
-      if (!OUT_ERROR()) {
-        m_char_stack = GET() ^ signer2;
-        m_char_bool = TRUE;
+    while (StreamOk()) {
+      temp = GET();
+      temp2 = GET();
+      PUT(temp ^ signer1);
+      if (!StreamOk()) {
+        m_in_sound->WriteBack(temp);
+        m_in_sound->WriteBack(temp2);
         break;
       }
-      PUT(GET() ^ signer2);
+      PUT(temp2 ^ signer2);
     }
   }
 
@@ -192,10 +188,8 @@ void wxSoundPcmCodec::OutputSwapAndSign16()
 
 void wxSoundPcmCodec::Encode()
 {
-  InitMode(ENCODING);
   if (m_io_format == m_orig_format) {
     CopyToOutput();
-    ExitMode();
     return;
   }
 
@@ -212,5 +206,4 @@ void wxSoundPcmCodec::Encode()
   default:
     break;
   }
-  ExitMode();
 }