winamp/Src/Plugins/Input/in_midi/midi_driver.cpp

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2024-09-24 12:54:57 +00:00
#include "main.h"
MIDI_driver * MIDI_driver::driver_list=0;
MIDI_driver::MIDI_driver()
{
next=driver_list;
driver_list=this;
inited=0;
device_list=0;
}
void MIDI_driver::reset_devices()
{
while(device_list)
{
MIDI_device * ptr = device_list->next;
delete device_list;
device_list = ptr;
}
}
MIDI_driver::~MIDI_driver()
{
reset_devices();
}
void MIDI_driver::add_device(MIDI_device * dev)
{
MIDI_device **ptr = &device_list;
while(ptr && *ptr) ptr = &(*ptr)->next;
*ptr=dev;
dev->next=0;
dev->driver=this;
}
MIDI_driver * MIDI_driver::driver_enumerate(int n)
{
MIDI_driver * ptr = driver_list;
while(ptr && n>0) {ptr=ptr->next;n--;}
return ptr;
}
int MIDI_driver::driver_count()
{
int n=0;
MIDI_driver * ptr = driver_list;
while(ptr) {ptr=ptr->next;n++;}
return n;
}
MIDI_device * MIDI_driver::device_enumerate(int n)
{
init();
MIDI_device * ptr = device_list;
while(ptr && n>0) {ptr=ptr->next;n--;}
return ptr;
}
int MIDI_driver::device_count()
{
init();
int n=0;
MIDI_device * ptr = device_list;
while(ptr) {ptr=ptr->next;n++;}
return n;
}
MIDI_device * MIDI_driver::find_device(GUID guid_driver,GUID guid_device)
{
MIDI_driver * driver_ptr = find_driver(guid_driver);
if (!driver_ptr) return 0;
MIDI_device * device_ptr;
int idx=0;
while(device_ptr = driver_ptr->device_enumerate(idx++))
{
if (device_ptr->get_guid()==guid_device) return device_ptr;
}
return 0;
}
MIDI_driver * MIDI_driver::find_driver(GUID guid_driver)
{
MIDI_driver * driver_ptr = driver_list;
while(driver_ptr)
{
if (driver_ptr->get_guid()==guid_driver) break;
driver_ptr = driver_ptr->next;
}
return driver_ptr;
}
MIDI_device * MIDI_driver::find_device_default()
{
MIDI_driver * driver_ptr = driver_list;
while(driver_ptr)
{
if (driver_ptr->is_default())
{
MIDI_device * device_ptr;
int idx=0;
while(device_ptr = driver_ptr->device_enumerate(idx++))
{
if (device_ptr->is_default()) return device_ptr;
}
}
driver_ptr = driver_ptr->next;
}
return 0;
}
void MIDI_driver::shutdown()
{
MIDI_driver * driver_ptr = driver_list;
while(driver_ptr)
{
driver_ptr->deinit();
driver_ptr = driver_ptr->next;
}
}