win32_m.cpp File Reference

Music playback for Windows. More...

#include "../stdafx.h"
#include "../string_func.h"
#include "win32_m.h"
#include <windows.h>
#include <mmsystem.h>
#include "../os/windows/win32.h"
#include "../debug.h"
#include "midifile.hpp"
#include "midi.h"
#include "../base_media_base.h"
#include "../core/mem_func.hpp"
#include <mutex>
#include "../safeguards.h"

Go to the source code of this file.

Data Structures
struct	PlaybackSegment

Functions
static uint8_t	ScaleVolume (uint8_t original, uint8_t scale)
void CALLBACK	MidiOutProc (HMIDIOUT hmo, UINT wMsg, DWORD_PTR, DWORD_PTR dwParam1, DWORD_PTR)
static void	TransmitChannelMsg (uint8_t status, uint8_t p1, uint8_t p2=0)
static void	TransmitSysex (const uint8_t *&msg_start, size_t &remaining)
static void	TransmitStandardSysex (MidiSysexMessage msg)
void CALLBACK	TimerCallback (UINT uTimerID, UINT, DWORD_PTR, DWORD_PTR, DWORD_PTR)
	Realtime MIDI playback service routine. More...

Variables
struct {
UINT   time_period
	obtained timer precision value
HMIDIOUT   midi_out
	handle to open midiOut
UINT   timer_id
	ID of active multimedia timer.
std::mutex   lock
	synchronization for playback status fields
bool   playing
	flag indicating that playback is active
int   do_start
	flag for starting playback of next_file at next opportunity
bool   do_stop
	flag for stopping playback at next opportunity
uint8_t   current_volume
	current effective volume setting
uint8_t   new_volume
	volume setting to change to
MidiFile   current_file
	file currently being played from
PlaybackSegment   current_segment
	segment info for current playback
DWORD   playback_start_time
	timestamp current file began playback
size_t   current_block
	next block index to send
MidiFile   next_file
	upcoming file to play
PlaybackSegment   next_segment
	segment info for upcoming file
uint8_t   channel_volumes [16]
	last seen volume controller values in raw data
}	_midi
static FMusicDriver_Win32	iFMusicDriver_Win32

Detailed Description

Music playback for Windows.

Definition in file win32_m.cpp.

Function Documentation

TimerCallback()

void CALLBACK TimerCallback	(	UINT	uTimerID,
		UINT	,
		DWORD_PTR	,
		DWORD_PTR	,
		DWORD_PTR
	)

Realtime MIDI playback service routine.

This is called by the multimedia timer.

Definition at line 111 of file win32_m.cpp.

References _midi, and Debug.

Referenced by MusicDriver_Win32::PlaySong().