143 lines
3.5 KiB
C
143 lines
3.5 KiB
C
/* pmwin.c -- PortMidi os-dependent code */
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/* This file only needs to implement:
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pm_init(), which calls various routines to register the
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available midi devices,
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Pm_GetDefaultInputDeviceID(), and
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Pm_GetDefaultOutputDeviceID().
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This file must
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be separate from the main portmidi.c file because it is system
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dependent, and it is separate from, say, pmwinmm.c, because it
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might need to register devices for winmm, directx, and others.
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*/
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#include "stdlib.h"
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#include "portmidi.h"
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#include "pmutil.h"
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#include "pminternal.h"
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#include "pmwinmm.h"
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#ifdef DEBUG
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#include "stdio.h"
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#endif
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#include <windows.h>
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/* pm_exit is called when the program exits.
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It calls pm_term to make sure PortMidi is properly closed.
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If DEBUG is on, we prompt for input to avoid losing error messages.
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*/
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static void pm_exit(void) {
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pm_term();
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#ifdef DEBUG
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#define STRING_MAX 80
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{
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char line[STRING_MAX];
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printf("Type ENTER...\n");
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/* note, w/o this prompting, client console application can not see one
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of its errors before closing. */
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fgets(line, STRING_MAX, stdin);
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}
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#endif
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}
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/* pm_init is the windows-dependent initialization.*/
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void pm_init(void)
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{
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atexit(pm_exit);
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#ifdef DEBUG
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printf("registered pm_exit with atexit()\n");
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#endif
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pm_winmm_init();
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/* initialize other APIs (DirectX?) here */
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}
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void pm_term(void) {
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pm_winmm_term();
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}
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static PmDeviceID pm_get_default_device_id(int is_input, char *key) {
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HKEY hkey;
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#define PATTERN_MAX 256
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char pattern[PATTERN_MAX];
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long pattern_max = PATTERN_MAX;
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DWORD dwType;
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/* Find first input or device -- this is the default. */
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PmDeviceID id = pmNoDevice;
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int i, j;
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Pm_Initialize(); /* make sure descriptors exist! */
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for (i = 0; i < pm_descriptor_index; i++) {
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if (descriptors[i].pub.input == is_input) {
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id = i;
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break;
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}
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}
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/* Look in registry for a default device name pattern. */
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if (RegOpenKeyEx(HKEY_CURRENT_USER, "Software", 0, KEY_READ, &hkey) !=
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ERROR_SUCCESS) {
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return id;
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}
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if (RegOpenKeyEx(hkey, "JavaSoft", 0, KEY_READ, &hkey) !=
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ERROR_SUCCESS) {
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return id;
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}
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if (RegOpenKeyEx(hkey, "Prefs", 0, KEY_READ, &hkey) !=
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ERROR_SUCCESS) {
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return id;
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}
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if (RegOpenKeyEx(hkey, "/Port/Midi", 0, KEY_READ, &hkey) !=
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ERROR_SUCCESS) {
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return id;
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}
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if (RegQueryValueEx(hkey, key, NULL, &dwType, (LPBYTE)pattern, (LPDWORD)&pattern_max) !=
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ERROR_SUCCESS) {
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return id;
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}
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/* decode pattern: upper case encoded with "/" prefix */
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i = j = 0;
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while (pattern[i]) {
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if (pattern[i] == '/' && pattern[i + 1]) {
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pattern[j++] = toupper(pattern[++i]);
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} else {
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pattern[j++] = tolower(pattern[i]);
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}
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i++;
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}
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pattern[j] = 0; /* end of string */
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/* now pattern is the string from the registry; search for match */
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i = pm_find_default_device(pattern, is_input);
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if (i != pmNoDevice) {
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id = i;
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}
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return id;
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}
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PmDeviceID Pm_GetDefaultInputDeviceID() {
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return pm_get_default_device_id(TRUE,
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"/P/M_/R/E/C/O/M/M/E/N/D/E/D_/I/N/P/U/T_/D/E/V/I/C/E");
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}
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PmDeviceID Pm_GetDefaultOutputDeviceID() {
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return pm_get_default_device_id(FALSE,
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"/P/M_/R/E/C/O/M/M/E/N/D/E/D_/O/U/T/P/U/T_/D/E/V/I/C/E");
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}
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#include "stdio.h"
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void *pm_alloc(size_t s) {
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return malloc(s);
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}
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void pm_free(void *ptr) {
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free(ptr);
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}
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