major restructuring, prepare for smp

code/user/personalities/win32/winmm.c

@@ -0,0 +1,125 @@
+// winmm.c - Win32 multimedia: waveform audio, timer
+// Stubs only; no audio hardware access at this stage.
+#include <stdint.h>
+#include <stddef.h>
+#include <ntlite/syscall.h>
+
+// ---------------------------------------------------------------------------
+// Types
+// ---------------------------------------------------------------------------
+typedef unsigned int  MMRESULT;
+typedef void*         HWAVEOUT;
+
+#define MMSYSERR_NOERROR      0
+#define MMSYSERR_NOTSUPPORTED 8
+#define WAVERR_STILLPLAYING   33
+
+// WAVEFORMATEX - standard PCM audio format descriptor.
+typedef struct {
+    unsigned short wFormatTag;
+    unsigned short nChannels;
+    unsigned int   nSamplesPerSec;
+    unsigned int   nAvgBytesPerSec;
+    unsigned short nBlockAlign;
+    unsigned short wBitsPerSample;
+    unsigned short cbSize;
+} WAVEFORMATEX;
+
+// WAVEHDR - buffer header submitted to waveOutWrite.
+typedef struct _WAVEHDR {
+    char*          lpData;
+    unsigned int   dwBufferLength;
+    unsigned int   dwBytesRecorded;
+    uintptr_t      dwUser;
+    unsigned int   dwFlags;
+    unsigned int   dwLoops;
+    struct _WAVEHDR* lpNext;
+    uintptr_t      reserved;
+} WAVEHDR;
+
+// MMTIME - used by waveOutGetPosition.
+typedef struct {
+    unsigned int wType;
+    union {
+        unsigned int ms;
+        unsigned int sample;
+        unsigned int cb;
+        unsigned int ticks;
+    } u;
+} MMTIME;
+
+// ---------------------------------------------------------------------------
+// Timer
+// ---------------------------------------------------------------------------
+
+__declspec(dllexport) unsigned long timeGetTime(void) {
+    return (unsigned long)(SysGetTick() / 1000u);
+}
+
+// ---------------------------------------------------------------------------
+// Waveform audio (stubs - no audio hardware at this stage)
+// ---------------------------------------------------------------------------
+
+__declspec(dllexport) MMRESULT waveOutOpen(HWAVEOUT* phwo, unsigned int deviceId,
+                                            const WAVEFORMATEX* fmt, uintptr_t callback,
+                                            uintptr_t callbackInstance, unsigned long flags) {
+    (void)deviceId; (void)fmt; (void)callback; (void)callbackInstance; (void)flags;
+    if (phwo) *phwo = (void*)0;
+    return MMSYSERR_NOTSUPPORTED;
+}
+
+__declspec(dllexport) MMRESULT waveOutClose(HWAVEOUT hwo) {
+    (void)hwo; return MMSYSERR_NOERROR;
+}
+
+__declspec(dllexport) MMRESULT waveOutPrepareHeader(HWAVEOUT hwo, WAVEHDR* hdr,
+                                                     unsigned int size) {
+    (void)hwo; (void)hdr; (void)size; return MMSYSERR_NOERROR;
+}
+
+__declspec(dllexport) MMRESULT waveOutUnprepareHeader(HWAVEOUT hwo, WAVEHDR* hdr,
+                                                       unsigned int size) {
+    (void)hwo; (void)hdr; (void)size; return MMSYSERR_NOERROR;
+}
+
+__declspec(dllexport) MMRESULT waveOutWrite(HWAVEOUT hwo, WAVEHDR* hdr, unsigned int size) {
+    (void)hwo; (void)hdr; (void)size; return MMSYSERR_NOTSUPPORTED;
+}
+
+__declspec(dllexport) MMRESULT waveOutPause(HWAVEOUT hwo) {
+    (void)hwo; return MMSYSERR_NOERROR;
+}
+
+__declspec(dllexport) MMRESULT waveOutRestart(HWAVEOUT hwo) {
+    (void)hwo; return MMSYSERR_NOERROR;
+}
+
+__declspec(dllexport) MMRESULT waveOutReset(HWAVEOUT hwo) {
+    (void)hwo; return MMSYSERR_NOERROR;
+}
+
+__declspec(dllexport) MMRESULT waveOutSetVolume(HWAVEOUT hwo, unsigned long volume) {
+    (void)hwo; (void)volume; return MMSYSERR_NOTSUPPORTED;
+}
+
+__declspec(dllexport) MMRESULT waveOutGetPosition(HWAVEOUT hwo, MMTIME* mmt,
+                                                   unsigned int size) {
+    (void)hwo; (void)size;
+    if (mmt) { mmt->wType = 0; mmt->u.ms = 0; }
+    return MMSYSERR_NOERROR;
+}
+
+// ---------------------------------------------------------------------------
+// Timer resolution control
+// No hardware timer reprogramming at this stage; pretend success so callers
+// that wrap their audio/game loop in timeBeginPeriod(1) don't bail out.
+// ---------------------------------------------------------------------------
+__declspec(dllexport) MMRESULT timeBeginPeriod(unsigned int uPeriod) {
+    (void)uPeriod;
+    return MMSYSERR_NOERROR;
+}
+
+__declspec(dllexport) MMRESULT timeEndPeriod(unsigned int uPeriod) {
+    (void)uPeriod;
+    return MMSYSERR_NOERROR;
+}