cmake windows

SimpleGame/FMOD/api/core/examples/effects.cpp

@@ -0,0 +1,237 @@
+/*==============================================================================
+Effects Example
+Copyright (c), Firelight Technologies Pty, Ltd 2004-2025.
+
+This example shows how to apply some of the built in software effects to sounds
+by applying them to the master channel group. All software sounds played here
+would be filtered in the same way. To filter per channel, and not have other
+channels affected, simply apply the same functions to the FMOD::Channel instead
+of the FMOD::ChannelGroup.
+
+For information on using FMOD example code in your own programs, visit
+https://www.fmod.com/legal
+==============================================================================*/
+#include "fmod.hpp"
+#include "common.h"
+
+int FMOD_Main()
+{
+    FMOD::System       *system        = 0;
+    FMOD::Sound        *sound         = 0;
+    FMOD::Channel      *channel       = 0;
+    FMOD::ChannelGroup *mastergroup   = 0; 
+    FMOD::DSP          *dsplowpass    = 0;
+    FMOD::DSP          *dsphighpass   = 0;
+    FMOD::DSP          *dspecho       = 0;
+    FMOD::DSP          *dspflange     = 0;
+    FMOD_RESULT         result;
+    void               *extradriverdata = 0;
+
+    Common_Init(&extradriverdata);
+
+    /*
+        Create a System object and initialize
+    */
+    result = FMOD::System_Create(&system);
+    ERRCHECK(result);
+
+    result = system->init(32, FMOD_INIT_NORMAL, extradriverdata);
+    ERRCHECK(result);
+
+    result = system->getMasterChannelGroup(&mastergroup);
+    ERRCHECK(result);
+
+    result = system->createSound(Common_MediaPath("drumloop.wav"), FMOD_DEFAULT, 0, &sound);
+    ERRCHECK(result);
+
+    result = system->playSound(sound, 0, false, &channel);
+    ERRCHECK(result);
+
+    /*
+        Create some effects to play with
+    */
+    result = system->createDSPByType(FMOD_DSP_TYPE_LOWPASS, &dsplowpass);
+    ERRCHECK(result);
+    result = system->createDSPByType(FMOD_DSP_TYPE_HIGHPASS, &dsphighpass);
+    ERRCHECK(result);
+    result = system->createDSPByType(FMOD_DSP_TYPE_ECHO, &dspecho);
+    ERRCHECK(result);
+    result = system->createDSPByType(FMOD_DSP_TYPE_FLANGE, &dspflange);
+    ERRCHECK(result);
+
+    /*
+        Add them to the master channel group.  Each time an effect is added (to position 0) it pushes the others down the list.
+    */
+    result = mastergroup->addDSP(0, dsplowpass);
+    ERRCHECK(result);
+    result = mastergroup->addDSP(0, dsphighpass);
+    ERRCHECK(result);
+    result = mastergroup->addDSP(0, dspecho);
+    ERRCHECK(result);
+    result = mastergroup->addDSP(0, dspflange);
+    ERRCHECK(result);
+
+    /*
+        By default, bypass all effects.  This means let the original signal go through without processing.
+        It will sound 'dry' until effects are enabled by the user.
+    */
+    result = dsplowpass->setBypass(true);
+    ERRCHECK(result);
+    result = dsphighpass->setBypass(true);
+    ERRCHECK(result);
+    result = dspecho->setBypass(true);
+    ERRCHECK(result);
+    result = dspflange->setBypass(true);
+    ERRCHECK(result);
+
+    /*
+        Main loop
+    */
+    do
+    {
+        Common_Update();
+
+        if (Common_BtnPress(BTN_MORE))
+        {
+            bool paused;
+
+            result = channel->getPaused(&paused);
+            ERRCHECK(result);
+
+            paused = !paused;
+
+            result = channel->setPaused(paused);
+            ERRCHECK(result);
+        }
+
+        if (Common_BtnPress(BTN_ACTION1))
+        {
+            bool bypass;
+
+            result = dsplowpass->getBypass(&bypass);
+            ERRCHECK(result);
+
+            bypass = !bypass;
+
+            result = dsplowpass->setBypass(bypass);
+            ERRCHECK(result);
+        }
+
+        if (Common_BtnPress(BTN_ACTION2))
+        {
+            bool bypass;
+
+            result = dsphighpass->getBypass(&bypass);
+            ERRCHECK(result);
+
+            bypass = !bypass;
+
+            result = dsphighpass->setBypass(bypass);
+            ERRCHECK(result);
+        }
+
+        if (Common_BtnPress(BTN_ACTION3))
+        {
+            bool bypass;
+
+            result = dspecho->getBypass(&bypass);
+            ERRCHECK(result);
+
+            bypass = !bypass;
+
+            result = dspecho->setBypass(bypass);
+            ERRCHECK(result);
+        }
+
+        if (Common_BtnPress(BTN_ACTION4))
+        {
+            bool bypass;
+
+            result = dspflange->getBypass(&bypass);
+            ERRCHECK(result);
+
+            bypass = !bypass;
+
+            result = dspflange->setBypass(bypass);
+            ERRCHECK(result);
+        }
+
+        result = system->update();
+        ERRCHECK(result);
+
+        {
+            bool paused = 0;
+            bool dsplowpass_bypass;
+            bool dsphighpass_bypass;
+            bool dspecho_bypass;
+            bool dspflange_bypass;
+
+            dsplowpass   ->getBypass(&dsplowpass_bypass);
+            dsphighpass  ->getBypass(&dsphighpass_bypass);
+            dspecho      ->getBypass(&dspecho_bypass);
+            dspflange    ->getBypass(&dspflange_bypass);
+
+            if (channel)
+            {
+                result = channel->getPaused(&paused);
+                if ((result != FMOD_OK) && (result != FMOD_ERR_INVALID_HANDLE) && (result != FMOD_ERR_CHANNEL_STOLEN))
+                {
+                    ERRCHECK(result);
+                }
+            }
+
+            Common_Draw("==================================================");
+            Common_Draw("Effects Example.");
+            Common_Draw("Copyright (c) Firelight Technologies 2004-2025.");
+            Common_Draw("==================================================");
+            Common_Draw("");
+            Common_Draw("Press %s to pause/unpause sound", Common_BtnStr(BTN_MORE));
+            Common_Draw("Press %s to toggle dsplowpass effect", Common_BtnStr(BTN_ACTION1));
+            Common_Draw("Press %s to toggle dsphighpass effect", Common_BtnStr(BTN_ACTION2));
+            Common_Draw("Press %s to toggle dspecho effect", Common_BtnStr(BTN_ACTION3));
+            Common_Draw("Press %s to toggle dspflange effect", Common_BtnStr(BTN_ACTION4));
+            Common_Draw("Press %s to quit", Common_BtnStr(BTN_QUIT));
+            Common_Draw("");
+            Common_Draw("%s : lowpass[%c] highpass[%c] echo[%c] flange[%c]", 
+                    paused              ? "Paused " : "Playing",
+                    dsplowpass_bypass   ? ' ' : 'x',
+                    dsphighpass_bypass  ? ' ' : 'x',
+                    dspecho_bypass      ? ' ' : 'x',
+                    dspflange_bypass    ? ' ' : 'x');
+        }
+
+        Common_Sleep(50);
+    } while (!Common_BtnPress(BTN_QUIT));
+
+    /*
+        Shut down
+    */
+    result = mastergroup->removeDSP(dsplowpass);
+    ERRCHECK(result);
+    result = mastergroup->removeDSP(dsphighpass);
+    ERRCHECK(result);
+    result = mastergroup->removeDSP(dspecho);
+    ERRCHECK(result);
+    result = mastergroup->removeDSP(dspflange);
+    ERRCHECK(result);
+    
+    result = dsplowpass->release();
+    ERRCHECK(result);
+    result = dsphighpass->release();
+    ERRCHECK(result);
+    result = dspecho->release();
+    ERRCHECK(result);
+    result = dspflange->release();
+    ERRCHECK(result);
+
+    result = sound->release();
+    ERRCHECK(result);
+    result = system->close();
+    ERRCHECK(result);
+    result = system->release();
+    ERRCHECK(result);
+
+    Common_Close();
+
+    return 0;
+}