75e0894ff8
Core additions since initial commit: - Platform-split MIDI (midi_linux.c / midi_windows.c) - Patch system: save/load/scan, subdirectory navigation, favourites - Config system: last MIDI device and CC mappings persisted to disk - Custom embedded pixel font and sprite sheet (no loose asset files at runtime) - Window icon embedded at runtime (SetWindowIcon) and in Windows .exe (windres) - chdirToExeDir() in platform.c so double-click launch finds patches/ correctly - About screen accessible from Master panel UI polish: - TITLE_BAR_H constant (20 px) — sprite buttons now fit inside title bars - All title bar text, button overlay text, and close/active labels vertically centred - Full-screen dim overlay computed from camera transform (no more partial coverage) - Patch browser: folder navigation, breadcrumb title, 256-slot limit lifted Build: - Makefile auto-discovers sources; embeds sprites/font/icon via xxd rules - Windows cross-compile: make PLATFORM=windows (mingw-w64 + windres) - windows.h isolated in platform.c to avoid Rectangle/CloseWindow conflicts with raylib.h - WIN_RES uses lazy = assignment so OBJ_DIR expands correctly for windres output path Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
109 lines
3.2 KiB
C
109 lines
3.2 KiB
C
#include "midi.h"
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#include <windows.h>
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#include <mmsystem.h>
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#include <stdatomic.h>
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#include <stdio.h>
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extern atomic_int gRunning;
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static void CALLBACK midiCallbackWin32(HMIDIIN hIn, UINT msg, DWORD_PTR instance,
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DWORD_PTR param1, DWORD_PTR param2)
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{
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(void)hIn; (void)param2;
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if (msg != MIM_DATA) return;
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MidiState *m = (MidiState *)instance;
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BYTE status = (BYTE)( param1 & 0xFF);
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BYTE data1 = (BYTE)((param1 >> 8) & 0xFF);
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BYTE data2 = (BYTE)((param1 >> 16) & 0xFF);
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BYTE type = status & 0xF0;
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if (type == 0x90 && data2 > 0) {
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synthNoteOn(m->synth, data1);
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} else if (type == 0x80 || (type == 0x90 && data2 == 0)) {
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synthNoteOff(m->synth, data1);
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} else if (type == 0xB0) {
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int cc = data1, val = data2;
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if (cc < 128) {
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if (atomic_load(&m->midiLearnMode))
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atomic_store(&m->midiLearnCC, cc);
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if (m->ccMappings[cc].active) {
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float t = (float)val / 127.0f;
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*m->ccMappings[cc].valuePtr =
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m->ccMappings[cc].min + t * (m->ccMappings[cc].max - m->ccMappings[cc].min);
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}
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}
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} else if (type == 0xE0) {
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int pb = (data2 << 7) | data1; // 0..16383, centre = 8192
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m->synth->pitchBend = (pb - 8192) / 8191.0f;
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}
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}
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int midiInit(MidiState *m, Synth *synth)
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{
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m->synth = synth;
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m->hMidiIn = NULL;
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m->connectedClient = -1;
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m->connectedPort = -1;
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m->inputCount = 0;
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atomic_store(&m->midiLearnMode, 0);
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atomic_store(&m->midiLearnCC, -1);
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for (int i = 0; i < 128; i++) m->ccMappings[i].active = 0;
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return 1;
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}
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void midiScanInputs(MidiState *m)
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{
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m->inputCount = 0;
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UINT n = midiInGetNumDevs();
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for (UINT i = 0; i < n && m->inputCount < MIDI_MAX_INPUTS; i++) {
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MIDIINCAPSA caps;
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if (midiInGetDevCapsA(i, &caps, sizeof(caps)) == MMSYSERR_NOERROR) {
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MidiInputInfo *info = &m->inputs[m->inputCount++];
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info->client = (int)i;
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info->port = 0;
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snprintf(info->clientName, sizeof(info->clientName), "%s", caps.szPname);
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snprintf(info->portName, sizeof(info->portName), "%s", caps.szPname);
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}
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}
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}
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void midiDevDisconnect(MidiState *m)
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{
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if (m->hMidiIn) {
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midiInStop((HMIDIIN)m->hMidiIn);
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midiInClose((HMIDIIN)m->hMidiIn);
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m->hMidiIn = NULL;
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}
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m->connectedClient = -1;
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m->connectedPort = -1;
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}
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void midiDevConnect(MidiState *m, int srcClient, int srcPort)
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{
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(void)srcPort;
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midiDevDisconnect(m);
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HMIDIIN hIn = NULL;
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if (midiInOpen(&hIn, (UINT)srcClient, (DWORD_PTR)midiCallbackWin32,
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(DWORD_PTR)m, CALLBACK_FUNCTION) == MMSYSERR_NOERROR) {
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midiInStart(hIn);
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m->hMidiIn = hIn;
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m->connectedClient = srcClient;
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m->connectedPort = 0;
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}
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}
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void midiClose(MidiState *m)
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{
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midiDevDisconnect(m);
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}
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void *midiThread(void *arg)
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{
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// WinMM delivers MIDI events via midiCallbackWin32 on its own MM thread.
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// This function exists only to satisfy the pthread_create call in soundThing.c.
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(void)arg;
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while (gRunning) Sleep(50);
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return NULL;
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}
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