diff options
Diffstat (limited to '3rdparty/portmidi/pm_test/recvvirtual.c')
-rw-r--r-- | 3rdparty/portmidi/pm_test/recvvirtual.c | 125 |
1 files changed, 125 insertions, 0 deletions
diff --git a/3rdparty/portmidi/pm_test/recvvirtual.c b/3rdparty/portmidi/pm_test/recvvirtual.c new file mode 100644 index 00000000000..8ac97bed54c --- /dev/null +++ b/3rdparty/portmidi/pm_test/recvvirtual.c @@ -0,0 +1,125 @@ +#include "portmidi.h" +#include "porttime.h" +#include "stdlib.h" +#include "stdio.h" +#include "string.h" +#include "assert.h" + +#define INPUT_BUFFER_SIZE 100 +#define DRIVER_INFO NULL +#define TIME_PROC ((PmTimeProcPtr) Pt_Time) +#define TIME_INFO NULL +#define TIME_START Pt_Start(1, 0, 0) /* timer started w/millisecond accuracy */ + +#define STRING_MAX 80 /* used for console input */ + +static void prompt_and_exit(void) +{ + printf("type ENTER..."); + while (getchar() != '\n') ; + /* this will clean up open ports: */ + exit(-1); +} + + +static PmError checkerror(PmError err) +{ + if (err == pmHostError) { + /* it seems pointless to allocate memory and copy the string, + * so I will do the work of Pm_GetHostErrorText directly + */ + char errmsg[80]; + Pm_GetHostErrorText(errmsg, 80); + printf("PortMidi found host error...\n %s\n", errmsg); + prompt_and_exit(); + } else if (err < 0) { + printf("PortMidi call failed...\n %s\n", Pm_GetErrorText(err)); + prompt_and_exit(); + } + return err; +} + + +void main_test_input(int num) +{ + PmStream *midi; + PmError status, length; + PmEvent buffer[1]; + int id; + int i = 0; /* count messages as they arrive */ + /* It is recommended to start timer before Midi; otherwise, PortMidi may + start the timer with its (default) parameters + */ + TIME_START; + + /* create a virtual input device */ + id = checkerror(Pm_CreateVirtualInput("portmidi", NULL, DRIVER_INFO)); + checkerror(Pm_OpenInput(&midi, id, NULL, 0, NULL, NULL)); + + printf("Midi Input opened. Reading %d Midi messages...\n", num); + Pm_SetFilter(midi, PM_FILT_ACTIVE | PM_FILT_CLOCK | PM_FILT_SYSEX); + /* empty the buffer after setting filter, just in case anything + got through */ + while (Pm_Poll(midi)) { + Pm_Read(midi, buffer, 1); + } + /* now start paying attention to messages */ + while (i < num) { + status = Pm_Poll(midi); + if (status == TRUE) { + length = Pm_Read(midi, buffer, 1); + if (length > 0) { + printf("Got message %d: time %ld, %2lx %2lx %2lx\n", + i, + (long) buffer[0].timestamp, + (long) Pm_MessageStatus(buffer[0].message), + (long) Pm_MessageData1(buffer[0].message), + (long) Pm_MessageData2(buffer[0].message)); + i++; + } else { + assert(0); + } + } + } + + /* close device (this not explicitly needed in most implementations) */ + printf("ready to close..."); + Pm_Close(midi); + printf("done closing.\nNow delete the virtual device..."); + checkerror(Pm_DeleteVirtualDevice(id)); + printf("done deleting.\n"); +} + + +void show_usage() +{ + printf("Usage: recvvirtual [-h] [n]\n use -h for this message,\n" + " n is number of message to wait for.\n"); + exit(0); +} + + +int main(int argc, char *argv[]) +{ + char line[STRING_MAX]; + int num = 10; + + if (argc > 2) { + show_usage(); + } else if (argc == 2) { + if (strcmp(argv[1], "-h") == 0) { + show_usage(); + } else { + num = atoi(argv[1]); + if (num <= 0) { + show_usage(); + } + } + } + + main_test_input(num); + + printf("finished portMidi test...type ENTER to quit..."); + while (getchar() != '\n') ; + return 0; +} |