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Code Issues

(svn r2682) Static, casts, misc.

release/0.4.5
tron 2005-07-22 18:19:06 +00:00
parent c50223526c
commit a13d515d5e
2 changed files with 63 additions and 62 deletions
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22
w32dm.c
View File

@ -60,14 +60,11 @@ extern void StopSegment (void);
extern bool IsSegmentPlaying (void);
extern void SetVolume (long);
bool seeking = false;
static bool seeking = false;
static const char * DMusicMidiStart(const char * const *parm)
{
if (InitDirectMusic() == true)
return(0);
return("Unable to initialize DirectMusic");
return InitDirectMusic() ? NULL : "Unable to initialize DirectMusic";
}
static void DMusicMidiStop(void)
@ -85,8 +82,7 @@ static void DMusicMidiPlaySong(const char *filename)
ttd_strlcpy(dir, filename, MAX_PATH);
pos = strrchr(dir, '\\') + 1;
ttd_strlcpy(file, pos, MAX_PATH);
//strchr(file, ' ')[0] = 0;
*pos = 0;
*pos = '\0';
LoadMIDI(dir, file);
PlaySegment();
@ -100,14 +96,12 @@ static void DMusicMidiStopSong(void)
static bool DMusicMidiIsSongPlaying(void)
{
if ((IsSegmentPlaying() == 0) && (seeking == true)) // Not the nicest code, but there is a
return(true); // short delay before playing actually
// starts. OpenTTD makes no provision for
if (IsSegmentPlaying() == 1) // this.
seeking = false;
/* Not the nicest code, but there is a short delay before playing actually
* starts. OpenTTD makes no provision for this. */
if (!IsSegmentPlaying() && seeking) return true;
if (IsSegmentPlaying()) seeking = false;
return(IsSegmentPlaying());
return IsSegmentPlaying();
}
static void DMusicMidiSetVolume(byte vol)

103
w32dm2.cpp
View File

@ -54,22 +54,24 @@
#include <dmusicc.h>
#include <dmusicf.h>
#define VARIANT int
#define MSGBOX(output) DEBUG(misc, 0) ("DirectMusic driver: %s\n", output); //MessageBox(NULL, output, "dxmci",MB_OK);
#define MULTI_TO_WIDE( x,y ) MultiByteToWideChar( CP_ACP,MB_PRECOMPOSED, y,-1,x,_MAX_PATH);
static void MultiToWide(WCHAR* to, const char* from)
{
MultiByteToWideChar(CP_ACP, MB_PRECOMPOSED, from, -1, to, _MAX_PATH);
}
// the performance object controls manipulation of the segments
IDirectMusicPerformance *performance = NULL;
static IDirectMusicPerformance *performance = NULL;
// the segment object is where the MIDI data is stored for playback
IDirectMusicSegment *segment = NULL;
static IDirectMusicSegment *segment = NULL;
// the loader bject can load many types of DMusic related files
IDirectMusicLoader *loader = NULL;
static IDirectMusicLoader *loader = NULL;
// whether we've initialized COM or not (when deciding whether to shut down)
int COMInitialized = 0;
static int COMInitialized = 0;
extern "C" bool LoadLibraryList(void **proc, const char *dll);
@ -109,7 +111,7 @@ extern "C" {
#endif
// Initialize COM and DirectMusic
bool InitDirectMusic (void)
bool InitDirectMusic(void)
{
if (NULL != performance)
return true;
@ -127,12 +129,13 @@ bool InitDirectMusic (void)
// Create the performance object via CoCreateInstance
if (FAILED(_proc.CoCreateInstance(
(REFCLSID)CLSID_DirectMusicPerformance,
NULL,
CLSCTX_INPROC,
(REFIID)IID_IDirectMusicPerformance,
(LPVOID *)&performance))) {
MSGBOX ("Failed to create the performance object");
CLSID_DirectMusicPerformance,
NULL,
CLSCTX_INPROC,
IID_IDirectMusicPerformance,
(LPVOID*)&performance
))) {
MSGBOX("Failed to create the performance object");
return false;
}
@ -143,7 +146,7 @@ bool InitDirectMusic (void)
}
// Choose default Windows synth
if (FAILED(performance->AddPort (NULL))) {
if (FAILED(performance->AddPort(NULL))) {
MSGBOX("AddPort failed");
return false;
}
@ -151,10 +154,13 @@ bool InitDirectMusic (void)
// now we'll create the loader object. This will be used to load the
// midi file for our demo. Again, we need to use CoCreateInstance
// and pass the appropriate ID parameters
if (FAILED(_proc.CoCreateInstance((REFCLSID)CLSID_DirectMusicLoader,
NULL, CLSCTX_INPROC,
(REFIID)IID_IDirectMusicLoader,
(LPVOID *)&loader))) {
if (FAILED(_proc.CoCreateInstance(
CLSID_DirectMusicLoader,
NULL,
CLSCTX_INPROC,
IID_IDirectMusicLoader,
(LPVOID*)&loader
))) {
MSGBOX("Failed to create loader object");
return false;
}
@ -166,28 +172,28 @@ bool InitDirectMusic (void)
// Releases memory used by all of the initialized
// DirectMusic objects in the program
void ReleaseSegment (void)
void ReleaseSegment(void)
{
if (NULL != segment) {
segment->Release ();
segment->Release();
segment = NULL;
}
}
void ShutdownDirectMusic (void)
void ShutdownDirectMusic(void)
{
// release everything but the segment, which the performance
// will release automatically (and it'll crash if it's been
// released already)
if (NULL != loader) {
loader->Release ();
loader->Release();
loader = NULL;
}
if (NULL != performance)
{
performance->CloseDown ();
performance->Release ();
if (NULL != performance) {
performance->CloseDown();
performance->Release();
performance = NULL;
}
@ -198,7 +204,7 @@ void ShutdownDirectMusic (void)
}
// Load MIDI file for playing
bool LoadMIDI (char *directory, char *filename)
bool LoadMIDI(const char *directory, const char *filename)
{
DMUS_OBJECTDESC obj_desc;
WCHAR w_directory[_MAX_PATH]; // utf-16 version of the directory name.
@ -207,22 +213,23 @@ bool LoadMIDI (char *directory, char *filename)
if (NULL == performance)
return false;
MULTI_TO_WIDE(w_directory,directory);
MultiToWide(w_directory, directory);
if (FAILED(loader->SetSearchDirectory((REFGUID) GUID_DirectMusicAllTypes,
w_directory, FALSE))) {
if (FAILED(loader->SetSearchDirectory(
GUID_DirectMusicAllTypes, w_directory, FALSE
))) {
MSGBOX("LoadMIDI: SetSearchDirectory failed");
return false;
}
// set up the loader object info
ZeroMemory (&obj_desc, sizeof (obj_desc));
obj_desc.dwSize = sizeof (obj_desc);
ZeroMemory(&obj_desc, sizeof(obj_desc));
obj_desc.dwSize = sizeof(obj_desc);
MULTI_TO_WIDE(w_filename,filename);
MultiToWide(w_filename, filename);
obj_desc.guidClass = CLSID_DirectMusicSegment;
wcscpy (obj_desc.wszFileName,w_filename);
wcscpy(obj_desc.wszFileName, w_filename);
obj_desc.dwValidData = DMUS_OBJ_CLASS | DMUS_OBJ_FILENAME;
// release the existing segment if we have any
@ -230,24 +237,24 @@ bool LoadMIDI (char *directory, char *filename)
ReleaseSegment();
// and make a new segment
if (FAILED(loader->GetObject(&obj_desc,
(REFIID)IID_IDirectMusicSegment,
(LPVOID *) &segment))) {
if (FAILED(loader->GetObject(
&obj_desc, IID_IDirectMusicSegment, (LPVOID*)&segment
))) {
MSGBOX("LoadMIDI: Get object failed");
return FALSE;
return false;
}
// next we need to tell the segment what kind of data it contains. We do this
// with the IDirectMusicSegment::SetParam function.
if (FAILED(segment->SetParam((REFGUID)GUID_StandardMIDIFile,
0xFFFFFFFF, 0, 0, (LPVOID)performance))) {
if (FAILED(segment->SetParam(
GUID_StandardMIDIFile, 0xFFFFFFFF, 0, 0, performance
))) {
MSGBOX("LoadMIDI: SetParam (MIDI file) failed");
return false;
}
// finally, we need to tell the segment to 'download' the instruments
if (FAILED(segment->SetParam((REFGUID)GUID_Download,
0xFFFFFFFF, 0, 0, (LPVOID)performance))) {
if (FAILED(segment->SetParam(GUID_Download, 0xFFFFFFFF, 0, 0, performance))) {
MSGBOX("LoadMIDI: Failed to download instruments");
return false;
}
@ -257,7 +264,7 @@ bool LoadMIDI (char *directory, char *filename)
}
// Start playing the MIDI file
void PlaySegment (void)
void PlaySegment(void)
{
if (NULL == performance)
return;
@ -268,7 +275,7 @@ void PlaySegment (void)
}
// Stop playing
void StopSegment (void)
void StopSegment(void)
{
if (NULL == performance || NULL == segment)
return;
@ -279,13 +286,13 @@ void StopSegment (void)
}
// Find out whether playing has started or stopped
bool IsSegmentPlaying (void)
bool IsSegmentPlaying(void)
{
if (NULL == performance || NULL == segment)
return FALSE;
return false;
// IsPlaying return S_OK if the segment is currently playing
return performance->IsPlaying(segment, NULL) == S_OK ? TRUE : FALSE;
return performance->IsPlaying(segment, NULL) == S_OK;
}
void SetVolume(long vol)