VGMTool Code

#include <string.h>   // strstr
#include <stdio.h>    // sprintf
#include <math.h>     // log
#include <windows.h>  // HWND
#include <commctrl.h> // TBM_*
#include <zlib.h>     // zlib stuff
#include "common.h"
#include "vgm.h"      // VGM header
#include "gd3.h"      // GD3 header
#include "wa_ipc.h"   // Winamp messages

//-----------------------------------------------------------------
// Check if string is a URL
//-----------------------------------------------------------------
int IsURL(char *url) {
  if (
    (strstr(url,"http://")==url) ||
    (strstr(url,"ftp://" )==url) ||
    (strstr(url,"www."   )==url)
  ) return 1;
  return 0;
}

//-----------------------------------------------------------------
// Convert a time in seconds to a nice format
//-----------------------------------------------------------------
char* PrintTime(char *s,double timeinseconds) {
	// Convert to the various timescales
  double secs=timeinseconds;
  int mins   =(int)timeinseconds / 60;
  int hours  =(int)timeinseconds / ( 60 * 60 );
  int days   =(int)timeinseconds / ( 60 * 60 * 24 );

	// Subtract the next largest's part tp get the remainder (in smallest to largest order)
	secs  -= mins * 60;
	mins  -= hours * 60;
	hours -= days * 24;

  if(days)
    // very unlikely
    sprintf(s,"%dd+%d:%02d:%04.1f",days,hours,mins,secs);
  else if(hours)
    // unlikely
    sprintf(s,"%d:%02d:%04.1f",hours,mins,secs);
  else if(mins)
    sprintf(s,"%d:%04.1f",mins,secs);
  else
    sprintf(s,"%.1fs",secs);

  return s;
}

//-----------------------------------------------------------------
// Setup a trackbar control
//-----------------------------------------------------------------
void SetupSlider(HWND hDlg, int nDlgItem, int min, int max, int ticfreq, int position) {
  SendDlgItemMessage(hDlg,nDlgItem,TBM_SETRANGE,0,MAKELONG(min,max));
  SendDlgItemMessage(hDlg,nDlgItem,TBM_SETTICFREQ,ticfreq,0);
  SendDlgItemMessage(hDlg,nDlgItem,TBM_SETPOS,TRUE,position);
}

//-----------------------------------------------------------------
// Read and check a TVGMHeader
//-----------------------------------------------------------------
struct TVGMHeader *ReadVGMHeader( gzFile *fh, BOOL needsGD3 )
{
	int i;
	struct TVGMHeader *VGMHeader = malloc(sizeof(struct TVGMHeader));

	if ( !VGMHeader )
		return NULL; // failed to allocate it

  i=gzread(fh,VGMHeader,sizeof(struct TVGMHeader));

  if (
    ( i < sizeof(struct TVGMHeader) ) ||                               // file too short/error reading
    ( VGMHeader->VGMIdent != VGMIDENT ) ||                             // no marker
    ( VGMHeader->Version < MINVERSION ) ||                             // below min ver
    ( (VGMHeader->Version & REQUIREDMAJORVER) != REQUIREDMAJORVER ) || // != required major ver
    ( needsGD3 && !VGMHeader->GD3Offset )                              // no GD3
  ) {
		free(VGMHeader);
    return NULL;
  }
	return VGMHeader;
}

//-----------------------------------------------------------------
// Read and check a TGD3Header
//-----------------------------------------------------------------
struct TGD3Header *ReadGD3Header( gzFile *fh )
{
	int i;
	struct TGD3Header *GD3Header = malloc(sizeof(struct TGD3Header));

	if ( !GD3Header )
		return NULL; // failed to allocate it

  i=gzread(fh,GD3Header,sizeof(struct TGD3Header));

  if (
    ( i < sizeof(struct TGD3Header) ) ||                                    // file too short/error reading
    ( GD3Header->GD3Ident != GD3IDENT ) ||                                  // no marker
    ( GD3Header->Version < MINGD3VERSION) ||                                // below min ver
    ( ( GD3Header->Version & REQUIREDGD3MAJORVER ) != REQUIREDGD3MAJORVER ) // != required major ver
  ) {
		free(GD3Header);
    return NULL;
  }
	return GD3Header;
}

//-----------------------------------------------------------------
// Open URL in minibrowser or browser
//-----------------------------------------------------------------
void OpenURL(HWND winamp_wnd, char *url, char *TempHTMLFile, int UseMB) {
  FILE *f;

  f=fopen(TempHTMLFile,"wb");
  // Put start text
  fprintf(f,
    "<html><head><META HTTP-EQUIV=\"Refresh\" CONTENT=\"0; URL=%s\"></head><body>Opening %s<br><a href=\"%s\">Click here if page does not open</a></body></html>",
    url,url,url
  );
  fclose(f);

  if (UseMB) {
    url=malloc(strlen(TempHTMLFile)+9);
    strcpy(url,"file:///");
    strcat(url,TempHTMLFile);
    SendMessage(winamp_wnd,WM_USER,(WPARAM)NULL, IPC_MBOPEN);  // open minibrowser
    SendMessage(winamp_wnd,WM_USER,(WPARAM)url,  IPC_MBOPEN);  // display file
    free(url);
  }
  else ShellExecute(winamp_wnd,NULL,TempHTMLFile,NULL,NULL,SW_SHOWNORMAL);
}

int FileSize(char *filename)
{
	int filesize;
	HANDLE fh = CreateFile( filename, GENERIC_READ, FILE_SHARE_READ, 0, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL );
	if (!fh) return 0;
	filesize = GetFileSize( fh, NULL );
	CloseHandle( fh );
	return filesize;
}