1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
|
/*
* Copyright (C) 2008-2013 Team XBMC
* http://www.xbmc.org
*
* This Program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This Program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with XBMC; see the file COPYING. If not, write to
* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
* http://www.gnu.org/copyleft/gpl.html
*
*/
#ifndef _LINUX
#include <windows.h>
#else
#define __cdecl
#define __declspec(x)
#endif
extern "C"
{
#include "src/vgmstream.h"
long __declspec(dllexport) DLL_Init()
{
return 1;
}
long __declspec(dllexport) DLL_LoadVGM(const char* szFileName, int* sampleRate, int* sampleSize, int* channels)
{
VGMSTREAM* result;
if ((result = init_vgmstream(szFileName)) == NULL)
return 0;
*sampleRate = result->sample_rate;
*sampleSize = 16;
*channels = result->channels;
return (long)result;
}
void __declspec(dllexport) DLL_FreeVGM(long vgm)
{
close_vgmstream((VGMSTREAM*)vgm);
}
int __declspec(dllexport) DLL_FillBuffer(long vgm, char* szBuffer, int iSize)
{
VGMSTREAM* song = (VGMSTREAM*)vgm;
render_vgmstream((sample*)szBuffer,iSize/(2*song->channels),(VGMSTREAM*)vgm);
return iSize;
}
unsigned long __declspec(dllexport) DLL_Seek(long vgm, unsigned long timepos)
{
VGMSTREAM* song = (VGMSTREAM*)vgm;
int16_t* buffer = new int16_t[576*song->channels];
long samples_to_do = (long)timepos * song->sample_rate / 1000L;
if (samples_to_do < song->current_sample )
reset_vgmstream(song);
else
samples_to_do -= song->current_sample;
while (samples_to_do > 0)
{
long l = samples_to_do>576?576:samples_to_do;
render_vgmstream(buffer,l,song);
samples_to_do -= l;
}
delete[] buffer;
return timepos;
}
unsigned long __declspec(dllexport) DLL_GetLength(long vgm)
{
VGMSTREAM* song = (VGMSTREAM*)vgm;
return song->num_samples/song->sample_rate*1000;
}
}
|
