editor/bass-sys/linux/bass24/fxtest/fxtest.c

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2021-01-08 03:37:50 +00:00
/*
BASS DX8 effects test
Copyright (c) 2001-2017 Un4seen Developments Ltd.
*/
#include <gtk/gtk.h>
#include <glade/glade.h>
#include <stdlib.h>
#include <string.h>
#include <regex.h>
#include <math.h>
#include "bass.h"
// path to glade file
#ifndef GLADE_PATH
#define GLADE_PATH ""
#endif
GladeXML *glade;
GtkWidget *win = 0;
GtkWidget *filesel;
DWORD floatable = BASS_SAMPLE_FLOAT; // floating-point channel support?
DWORD chan; // channel handle
DWORD fxchan = 0; // output stream handle
HFX fx[4]; // 3 eq bands + reverb
// display error messages
void Error(const char *es)
{
GtkWidget *dialog = gtk_message_dialog_new(GTK_WINDOW(win), GTK_DIALOG_DESTROY_WITH_PARENT,
GTK_MESSAGE_ERROR, GTK_BUTTONS_OK, "%s\n(error code: %d)", es, BASS_ErrorGetCode());
gtk_dialog_run(GTK_DIALOG(dialog));
gtk_widget_destroy(dialog);
}
#define GetWidget(id) glade_xml_get_widget(glade,id)
void WindowDestroy(GtkObject *obj, gpointer data)
{
gtk_main_quit();
}
void UpdateFX(const char *id)
{
GtkRange *obj = GTK_RANGE(GetWidget(id));
double v = gtk_range_get_value(obj);
int b = atoi(id + 2) - 1;
if (b < 3) {
BASS_DX8_PARAMEQ p;
BASS_FXGetParameters(fx[b], &p);
p.fGain = v;
BASS_FXSetParameters(fx[b], &p);
} else {
BASS_DX8_REVERB p;
BASS_FXGetParameters(fx[3], &p);
p.fReverbMix = (v ? log(v / 20.0) * 20 : -96);
BASS_FXSetParameters(fx[3], &p);
}
}
void SetupFX()
{
// setup the effects
BASS_DX8_PARAMEQ p;
DWORD ch = fxchan ? fxchan : chan; // set on output stream if enabled, else file stream
fx[0] = BASS_ChannelSetFX(ch, BASS_FX_DX8_PARAMEQ, 0);
fx[1] = BASS_ChannelSetFX(ch, BASS_FX_DX8_PARAMEQ, 0);
fx[2] = BASS_ChannelSetFX(ch, BASS_FX_DX8_PARAMEQ, 0);
fx[3] = BASS_ChannelSetFX(ch, BASS_FX_DX8_REVERB, 0);
p.fGain = 0;
p.fBandwidth = 18;
p.fCenter = 125;
BASS_FXSetParameters(fx[0], &p);
p.fCenter = 1000;
BASS_FXSetParameters(fx[1], &p);
p.fCenter = 8000;
BASS_FXSetParameters(fx[2], &p);
UpdateFX("fx1");
UpdateFX("fx2");
UpdateFX("fx3");
UpdateFX("fx4");
}
gboolean FileExtensionFilter(const GtkFileFilterInfo *info, gpointer data)
{
return !regexec((regex_t*)data, info->filename, 0, NULL, 0);
}
void OpenClicked(GtkButton *obj, gpointer data)
{
int resp = gtk_dialog_run(GTK_DIALOG(filesel));
gtk_widget_hide(filesel);
if (resp == GTK_RESPONSE_ACCEPT) {
char *file = gtk_file_chooser_get_filename(GTK_FILE_CHOOSER(filesel));
// free both MOD and stream, it must be one of them! :)
BASS_MusicFree(chan);
BASS_StreamFree(chan);
if (!(chan = BASS_StreamCreateFile(FALSE, file, 0, 0, BASS_SAMPLE_LOOP | floatable))
&& !(chan = BASS_MusicLoad(FALSE, file, 0, 0, BASS_MUSIC_RAMPS | BASS_SAMPLE_LOOP | floatable, 1))) {
// whatever it is, it ain't playable
gtk_button_set_label(obj, "click here to open a file...");
Error("Can't play the file");
} else {
gtk_button_set_label(obj, file);
if (!fxchan) SetupFX(); // set effects on file if not using output stream
BASS_ChannelPlay(chan, FALSE);
}
g_free(file);
}
}
gboolean FXChange(GtkRange *range, GtkScrollType scroll, gdouble value, gpointer data)
{
UpdateFX(gtk_widget_get_name(GTK_WIDGET(range)));
return FALSE;
}
void OutputToggled(GtkToggleButton *obj, gpointer data)
{
// remove current effects
DWORD ch = fxchan ? fxchan : chan;
BASS_ChannelRemoveFX(ch, fx[0]);
BASS_ChannelRemoveFX(ch, fx[1]);
BASS_ChannelRemoveFX(ch, fx[2]);
BASS_ChannelRemoveFX(ch, fx[3]);
if (obj->active)
fxchan = BASS_StreamCreate(0, 0, 0, STREAMPROC_DEVICE, 0); // get device output stream
else
fxchan = 0; // stop using device output stream
SetupFX();
}
int main(int argc, char* argv[])
{
regex_t fregex;
gtk_init(&argc, &argv);
// check the correct BASS was loaded
if (HIWORD(BASS_GetVersion()) != BASSVERSION) {
Error("An incorrect version of BASS was loaded");
return 0;
}
// check for floating-point capability
if (!BASS_GetConfig(BASS_CONFIG_FLOAT)) {
// no floating-point channel support
floatable = 0;
// enable floating-point (8.24 fixed-point in this case) DSP instead
BASS_SetConfig(BASS_CONFIG_FLOATDSP, TRUE);
}
// initialize default device
if (!BASS_Init(-1, 44100, 0, NULL, NULL)) {
Error("Can't initialize device");
return 0;
}
// initialize GUI
glade = glade_xml_new(GLADE_PATH"fxtest.glade", NULL, NULL);
if (!glade) return 0;
win = GetWidget("window1");
if (!win) return 0;
glade_xml_signal_autoconnect(glade);
{ // initialize file selector
GtkFileFilter *filter;
filesel = gtk_file_chooser_dialog_new("Open File", GTK_WINDOW(win), GTK_FILE_CHOOSER_ACTION_OPEN,
GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL, GTK_STOCK_OPEN, GTK_RESPONSE_ACCEPT, NULL);
filter = gtk_file_filter_new();
gtk_file_filter_set_name(filter, "Playable files");
regcomp(&fregex, "\\.(mo3|xm|mod|s3m|it|umx|mp[1-3]|ogg|wav|aif)$", REG_ICASE | REG_NOSUB | REG_EXTENDED);
gtk_file_filter_add_custom(filter, GTK_FILE_FILTER_FILENAME, FileExtensionFilter, &fregex, NULL);
gtk_file_chooser_add_filter(GTK_FILE_CHOOSER(filesel), filter);
filter = gtk_file_filter_new();
gtk_file_filter_set_name(filter, "All files");
gtk_file_filter_add_pattern(filter, "*");
gtk_file_chooser_add_filter(GTK_FILE_CHOOSER(filesel), filter);
}
gtk_main();
gtk_widget_destroy(filesel);
regfree(&fregex);
BASS_Free();
return 0;
}