/*
	BASS MOD music test
	Copyright (c) 1999-2014 Un4seen Developments Ltd.
*/

#include <windows.h>
#include <stdio.h>
#include <commctrl.h>
#include "bass.h"

HWND win = NULL;

DWORD music;	// the HMUSIC channel

OPENFILENAME ofn;

// display error messages
void Error(char *es)
{
	char mes[200];
	sprintf(mes, "%s\n(error code: %d)", es, BASS_ErrorGetCode());
	MessageBox(win, mes, "Error", 0);
}

#define MESS(id,m,w,l) SendDlgItemMessage(win,id,m,(WPARAM)w,(LPARAM)l)

DWORD GetFlags()
{
	DWORD flags = BASS_MUSIC_POSRESET; // stop notes when seeking
	switch (MESS(21, CB_GETCURSEL, 0, 0)) {
		case 0:
			flags |= BASS_MUSIC_NONINTER; // no interpolation
			break;
		case 2:
			flags |= BASS_MUSIC_SINCINTER; // sinc interpolation
			break;
	}
	switch (MESS(22, CB_GETCURSEL, 0, 0)) {
		case 1:
			flags |= BASS_MUSIC_RAMP; // ramping
			break;
		case 2:
			flags |= BASS_MUSIC_RAMPS; // "sensitive" ramping
			break;
	}
	switch (MESS(23, CB_GETCURSEL, 0, 0)) {
		case 1:
			flags |= BASS_MUSIC_SURROUND; // surround
			break;
		case 2:
			flags |= BASS_MUSIC_SURROUND2; // "mode2"
			break;
	}
	return flags;
}

INT_PTR CALLBACK dialogproc(HWND h, UINT m, WPARAM w, LPARAM l)
{
	switch (m) {
		case WM_TIMER:
			{ // update display
				char text[16];
				QWORD pos = BASS_ChannelGetPosition(music, BASS_POS_MUSIC_ORDER);
				if (pos != (QWORD)-1) {
					MESS(20, TBM_SETPOS, 1, LOWORD(pos));
					sprintf(text, "%03d.%03d", LOWORD(pos), HIWORD(pos));
					MESS(15, WM_SETTEXT, 0, text);
				}
			}
			break;

		case WM_COMMAND:
			switch (LOWORD(w)) {
				case IDCANCEL:
					EndDialog(h, 0);
					break;
				case 10:
					{
						char file[MAX_PATH] = "";
						ofn.lpstrFilter = "mo3/it/xm/s3m/mtm/mod/umx files\0*.mo3;*.xm;*.mod;*.s3m;*.it;*.mtm;*.umx\0All files\0*.*\0\0";
						ofn.lpstrFile = file;
						if (GetOpenFileName(&ofn)) {
							BASS_MusicFree(music); // free the current music
							music = BASS_MusicLoad(FALSE, file, 0, 0, GetFlags(), 1); // load the new music
							if (music) { // success
								DWORD length = BASS_ChannelGetLength(music, BASS_POS_MUSIC_ORDER); // get the order length
								MESS(10, WM_SETTEXT, 0, file);
								{
									char text[100], *ctype = "";
									BASS_CHANNELINFO info;
									int channels = 0;
									while (BASS_ChannelGetAttributeEx(music, BASS_ATTRIB_MUSIC_VOL_CHAN + channels, 0, 0)) channels++; // count channels
									BASS_ChannelGetInfo(music, &info);
									switch (info.ctype & ~BASS_CTYPE_MUSIC_MO3) {
										case BASS_CTYPE_MUSIC_MOD:
											ctype = "MOD";
											break;
										case BASS_CTYPE_MUSIC_MTM:
											ctype = "MTM";
											break;
										case BASS_CTYPE_MUSIC_S3M:
											ctype = "S3M";
											break;
										case BASS_CTYPE_MUSIC_XM:
											ctype = "XM";
											break;
										case BASS_CTYPE_MUSIC_IT:
											ctype = "IT";
											break;
									}
									_snprintf(text, sizeof(text), "name: %s, format: %dch %s%s", BASS_ChannelGetTags(music, BASS_TAG_MUSIC_NAME), channels, ctype, info.ctype & BASS_CTYPE_MUSIC_MO3 ? " (MO3)" : "");
									MESS(11, WM_SETTEXT, 0, text);
								}
								MESS(20, TBM_SETRANGEMAX, 1, length - 1); // update scroller range
								BASS_ChannelPlay(music, FALSE); // start it
							} else { // failed
								MESS(10, WM_SETTEXT, 0, "click here to open a file...");
								MESS(11, WM_SETTEXT, 0, "");
								MESS(15, WM_SETTEXT, 0, "");
								Error("Can't play the file");
							}
						}
					}
					break;
				case 12:
					if (BASS_ChannelIsActive(music) == BASS_ACTIVE_PLAYING)
						BASS_ChannelPause(music);
					else
						BASS_ChannelPlay(music, FALSE);
					break;
				case 21:
				case 22:
				case 23:
					BASS_ChannelFlags(music, GetFlags(), -1); // update flags
					break;
			}
			break;

		case WM_HSCROLL:
			if (l && LOWORD(w) != SB_THUMBPOSITION && LOWORD(w) != SB_ENDSCROLL) {
				int pos = SendMessage((HWND)l, TBM_GETPOS, 0, 0);
				BASS_ChannelSetPosition(music, pos, BASS_POS_MUSIC_ORDER); // set the position
			}
			break;

		case WM_INITDIALOG:
			win = h;
			// initialize default output device
			if (!BASS_Init(-1, 44100, 0, win, NULL)) {
				Error("Can't initialize device");
				EndDialog(h, 0);
				break;
			}
			memset(&ofn, 0, sizeof(ofn));
			ofn.lStructSize = sizeof(ofn);
			ofn.hwndOwner = h;
			ofn.nMaxFile = MAX_PATH;
			ofn.Flags = OFN_HIDEREADONLY | OFN_EXPLORER;
			MESS(21, CB_ADDSTRING, 0, "off");
			MESS(21, CB_ADDSTRING, 0, "linear");
			MESS(21, CB_ADDSTRING, 0, "sinc");
			MESS(21, CB_SETCURSEL, 1, 0);
			MESS(22, CB_ADDSTRING, 0, "off");
			MESS(22, CB_ADDSTRING, 0, "normal");
			MESS(22, CB_ADDSTRING, 0, "sensitive");
			MESS(22, CB_SETCURSEL, 2, 0);
			MESS(23, CB_ADDSTRING, 0, "off");
			MESS(23, CB_ADDSTRING, 0, "mode1");
			MESS(23, CB_ADDSTRING, 0, "mode2");
			MESS(23, CB_SETCURSEL, 0, 0);
			SetTimer(win, 1, 100, NULL);
			return 1;

		case WM_DESTROY:
			BASS_Free();
			break;
	}
	return 0;
}

int PASCAL WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow)
{
	// check the correct BASS was loaded
	if (HIWORD(BASS_GetVersion()) != BASSVERSION) {
		MessageBox(0, "An incorrect version of BASS.DLL was loaded", 0, MB_ICONERROR);
		return 0;
	}

	DialogBox(hInstance, MAKEINTRESOURCE(1000), NULL, dialogproc);

	return 0;
}