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@ r20699:889ceeee7d27
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Location: cpp/openttd-patchpack/source/src/music/dmusic.cpp
r20699:889ceeee7d27
7.5 KiB
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(svn r25737) -Codechange: move inner workings of RefreshNextHopsStats into separate function
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/*
* This file is part of OpenTTD.
* OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
* OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
*/
/** @file dmusic.cpp Playing music via DirectMusic. */
#ifdef WIN32_ENABLE_DIRECTMUSIC_SUPPORT
#define INITGUID
#include "../stdafx.h"
#ifdef WIN32_LEAN_AND_MEAN
#undef WIN32_LEAN_AND_MEAN // Don't exclude rarely-used stuff from Windows headers
#endif
#include "../debug.h"
#include "../os/windows/win32.h"
#include "../core/mem_func.hpp"
#include "dmusic.h"
#include <windows.h>
#include <dmksctrl.h>
#include <dmusici.h>
#include <dmusicc.h>
#include <dmusicf.h>
static FMusicDriver_DMusic iFMusicDriver_DMusic;
/** the direct music object manages buffers and ports */
static IDirectMusic *music = NULL;
/** 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
))) {
return "Failed to create the performance object";
}
/* initialize it */
if (FAILED(performance->Init(&music, NULL, NULL))) {
return "Failed to initialize performance object";
}
int port = GetDriverParamInt(parm, "port", -1);
#ifndef NO_DEBUG_MESSAGES
if (_debug_driver_level > 0) {
/* Print all valid output ports. */
char desc[DMUS_MAX_DESCRIPTION];
DMUS_PORTCAPS caps;
MemSetT(&caps, 0);
caps.dwSize = sizeof(DMUS_PORTCAPS);
DEBUG(driver, 1, "Detected DirectMusic ports:");
for (int i = 0; music->EnumPort(i, &caps) == S_OK; i++) {
if (caps.dwClass == DMUS_PC_OUTPUTCLASS) {
/* Description is UNICODE even for ANSI build. */
DEBUG(driver, 1, " %d: %s%s", i, convert_from_fs(caps.wszDescription, desc, lengthof(desc)), i == port ? " (selected)" : "");
}
}
}
#endif
IDirectMusicPort *music_port = NULL; // NULL means 'use default port'.
if (port >= 0) {
/* Check if the passed port is a valid port. */
DMUS_PORTCAPS caps;
MemSetT(&caps, 0);
caps.dwSize = sizeof(DMUS_PORTCAPS);
if (FAILED(music->EnumPort(port, &caps))) return "Supplied port parameter is not a valid port";
if (caps.dwClass != DMUS_PC_OUTPUTCLASS) return "Supplied port parameter is not an output port";
/* Create new port. */
DMUS_PORTPARAMS params;
MemSetT(¶ms, 0);
params.dwSize = sizeof(DMUS_PORTPARAMS);
params.dwValidParams = DMUS_PORTPARAMS_CHANNELGROUPS;
params.dwChannelGroups = 1;
if (FAILED(music->CreatePort(caps.guidPort, ¶ms, &music_port, NULL))) {
return "Failed to create port";
}
/* Activate port. */
if (FAILED(music_port->Activate(TRUE))) {
music_port->Release();
return "Failed to activate port";
}
}
/* Add port to performance. */
if (FAILED(performance->AddPort(music_port))) {
if (music_port != NULL) music_port->Release();
return "AddPort failed";
}
/* Assign a performance channel block to the performance if we added
* a custom port to the performance. */
if (music_port != NULL) {
if (FAILED(performance->AssignPChannelBlock(0, music_port, 1))) {
music_port->Release();
return "Failed to assign PChannel block";
}
/* We don't need the port anymore. */
music_port->Release();
}
/* 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
))) {
return "Failed to create loader object";
}
return NULL;
}
MusicDriver_DMusic::~MusicDriver_DMusic()
{
this->Stop();
}
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 (music != NULL) {
music->Release();
music = 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 */
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