(svn r11940) -Codechange: Store short filename once per open file instead of once per sprite cache entry. Not all file types need this, but most of the time no sprite cache entry needed it either.
/* $Id$ */
/** @file dmusic.cpp */
#ifdef WIN32_ENABLE_DIRECTMUSIC_SUPPORT
#include "../stdafx.h"
#include "../debug.h"
#include "../win32.h"
#include "dmusic.h"
#include <windows.h>
#include <dmksctrl.h>
#include <dmusici.h>
#include <dmusicc.h>
#include <dmusicf.h>
static FMusicDriver_DMusic iFMusicDriver_DMusic;
/** the performance object controls manipulation of the segments */
static IDirectMusicPerformance* performance = NULL;
/** the loader object can load many types of DMusic related files */
static IDirectMusicLoader* loader = NULL;
/** the segment object is where the MIDI data is stored for playback */
static IDirectMusicSegment* segment = NULL;
static bool seeking = false;
#define M(x) x "\0"
static const char ole_files[] =
M("ole32.dll")
M("CoCreateInstance")
M("CoInitialize")
M("CoUninitialize")
M("")
;
#undef M
struct ProcPtrs {
unsigned long (WINAPI * CoCreateInstance)(REFCLSID rclsid, LPUNKNOWN pUnkOuter, DWORD dwClsContext, REFIID riid, LPVOID* ppv);
HRESULT (WINAPI * CoInitialize)(LPVOID pvReserved);
void (WINAPI * CoUninitialize)();
};
static ProcPtrs proc;
const char *MusicDriver_DMusic::Start(const char * const *parm)
{
if (performance != NULL) return NULL;
if (proc.CoCreateInstance == NULL) {
if (!LoadLibraryList((Function*)&proc, ole_files))
return "ole32.dll load failed";
}
/* Initialize COM */
if (FAILED(proc.CoInitialize(NULL))) {
return "COM initialization failed";
}
/* create the performance object */
if (FAILED(proc.CoCreateInstance(
CLSID_DirectMusicPerformance,
NULL,
CLSCTX_INPROC,
IID_IDirectMusicPerformance,
(LPVOID*)&performance
))) {
proc.CoUninitialize();
return "Failed to create the performance object";
}
/* initialize it */
if (FAILED(performance->Init(NULL, NULL, NULL))) {
performance->Release();
performance = NULL;
proc.CoUninitialize();
return "Failed to initialize performance object";
}
/* choose default Windows synth */
if (FAILED(performance->AddPort(NULL))) {
performance->CloseDown();
performance->Release();
performance = NULL;
proc.CoUninitialize();
return "AddPort failed";
}
/* create the loader object; this will be used to load the MIDI file */
if (FAILED(proc.CoCreateInstance(
CLSID_DirectMusicLoader,
NULL,
CLSCTX_INPROC,
IID_IDirectMusicLoader,
(LPVOID*)&loader
))) {
performance->CloseDown();
performance->Release();
performance = NULL;
proc.CoUninitialize();
return "Failed to create loader object";
}
return NULL;
}
void MusicDriver_DMusic::Stop()
{
seeking = false;
if (performance != NULL) performance->Stop(NULL, NULL, 0, 0);
if (segment != NULL) {
segment->SetParam(GUID_Unload, 0xFFFFFFFF, 0, 0, performance);
segment->Release();
segment = NULL;
}
if (performance != NULL) {
performance->CloseDown();
performance->Release();
performance = NULL;
}
if (loader != NULL) {
loader->Release();
loader = NULL;
}
proc.CoUninitialize();
}
void MusicDriver_DMusic::PlaySong(const char* filename)
{
/* set up the loader object info */
DMUS_OBJECTDESC obj_desc;
ZeroMemory(&obj_desc, sizeof(obj_desc));
obj_desc.dwSize = sizeof(obj_desc);
obj_desc.guidClass = CLSID_DirectMusicSegment;
obj_desc.dwValidData = DMUS_OBJ_CLASS | DMUS_OBJ_FILENAME | DMUS_OBJ_FULLPATH;
MultiByteToWideChar(
CP_ACP, MB_PRECOMPOSED,
filename, -1,
obj_desc.wszFileName, lengthof(obj_desc.wszFileName)
);
/* release the existing segment if we have any */
if (segment != NULL) {
segment->Release();
segment = NULL;
}
/* make a new segment */
if (FAILED(loader->GetObject(
&obj_desc, IID_IDirectMusicSegment, (LPVOID*)&segment
))) {
DEBUG(driver, 0, "DirectMusic: GetObject failed");
return;
}
/* tell the segment what kind of data it contains */
if (FAILED(segment->SetParam(
GUID_StandardMIDIFile, 0xFFFFFFFF, 0, 0, performance
))) {
DEBUG(driver, 0, "DirectMusic: SetParam (MIDI file) failed");
return;
}
/* tell the segment to 'download' the instruments */
if (FAILED(segment->SetParam(GUID_Download, 0xFFFFFFFF, 0, 0, performance))) {
DEBUG(driver, 0, "DirectMusic: failed to download instruments");
return;
}
/* start playing the MIDI file */
if (FAILED(performance->PlaySegment(segment, 0, 0, NULL))) {
DEBUG(driver, 0, "DirectMusic: PlaySegment failed");
return;
}
seeking = true;
}
void MusicDriver_DMusic::StopSong()
{
if (FAILED(performance->Stop(segment, NULL, 0, 0))) {
DEBUG(driver, 0, "DirectMusic: StopSegment failed");
}
seeking = false;
}
bool MusicDriver_DMusic::IsSongPlaying()
{
/* Not the nicest code, but there is a short delay before playing actually
* starts. OpenTTD makes no provision for this. */
if (performance->IsPlaying(segment, NULL) == S_OK) {
seeking = false;
return true;
} else {
return seeking;
}
}
void MusicDriver_DMusic::SetVolume(byte vol)
{
long db = vol * 2000 / 127 - 2000; ///< 0 - 127 -> -2000 - 0
performance->SetGlobalParam(GUID_PerfMasterVolume, &db, sizeof(db));
}
#endif /* WIN32_ENABLE_DIRECTMUSIC_SUPPORT */