/***************************************************************** fmod0.cpp by Dave Pape 25 Feb 2003 An example of using fmod for playing sounds. This program plays a 'boing' sound whenever the ball bounces. It also loads two MP3 streams for background music, and switches between them (and silence) whenever the spacebar is hit. It uses the Pause-Channel feature to pause each MP3 wherever it currently is, rather than stopping them and restarting them at the beginning each time. *****************************************************************/ #include #include #include #include #include #include #include #include #include void initializeSound(void); void drawEverything(void); void updateBall(dms::Object&,void*); void drawFloorMesh(dms::Object&,void*); void drawTeapot(dms::Object&,void*); void updateTeapot(dms::Object&,void*); void key(unsigned char k, int x, int y); void specialkey(int k, int x, int y); void idle(void); dms::PerspCamera camera; dms::Light light; dms::Vector4 green(0, 0.8, 0.1, 1); dms::Vector4 red(0.8, 0, 0, 1); dms::Vector4 white(1, 1, 1, 1); dms::Vector4 grey(0.6, 0.6, 0.6, 1); dms::Vector4 cyan(0, 1, 1, 1); dms::Material floorMaterial(green); dms::Material teapotMaterial(red, white, 90); dms::Material pedestalMaterial(grey, white, 30); dms::Material ballMaterial(cyan); dms::Texture2D texture("texture.tif"); dms::SimpleTransform ballTransform; dms::SimpleTransform pedestalTransform; dms::SimpleTransform pedestalCapTransform; dms::SimpleTransform teapotTransform; dms::QuadricObject ball; dms::QuadricObject pedestal; dms::QuadricObject pedestalCap; dms::Object teapot; dms::Object floormesh; /*************** CODE OF INTEREST ******************************/ /* The variables for our sample sound, and the channels where */ /* our MP3s will play. */ /* */ FSOUND_SAMPLE *samplesound; int mp3channel[3] = { -1, -1 -1 }; int currentMP3 = 0; int main(int argc, char *argv[]) { glutInit(&argc, argv); glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH); glutInitWindowSize(512,512); glutCreateWindow(argv[0]); glutDisplayFunc(drawEverything); glutKeyboardFunc(key); glutSpecialFunc(specialkey); glutIdleFunc(idle); camera.setPosition(0, 0, 10); light.setInfinitePosition(-5, 4, 1); floormesh.setMaterial(floorMaterial); floormesh.setDrawCallback(drawFloorMesh, (void*)32); pedestal.makeCylinder(4.0, 4.0, 4.0, 16, 1, DMS_Y); pedestal.setMaterial(pedestalMaterial); pedestalTransform.setTranslation(2.0, -2.0, -1.0); pedestal.setTransform(pedestalTransform); pedestalCap.makeDisk(0.0, 4.0, 16, 1, DMS_Y); pedestalCap.setMaterial(pedestalMaterial); pedestalCapTransform.setTranslation(4 * dms::Vector3::Y_Axis); pedestalCap.setTransform(pedestalCapTransform); teapot.setMaterial(teapotMaterial); teapot.material().diffuse()[3] = 0.75; teapot.setTexture(texture); teapot.setTransparency(dms::Transparency::StandardBlend); teapotTransform.setTranslation(5.5 * dms::Vector3::Y_Axis); teapot.setTransform(teapotTransform); teapot.setDrawCallback(drawTeapot); teapot.setUpdateCallback(updateTeapot); ball.makeSphere(2.0, 16, 8); ball.setMaterial(ballMaterial); ballTransform.setTranslation(-10.0, 0.0, -15.0); ball.setTransform(ballTransform); ball.setUpdateCallback(updateBall); floormesh.attach(ball); floormesh.attach(pedestal); pedestal.attach(pedestalCap); pedestal.attach(teapot); initializeSound(); glutMainLoop(); return 0; } /*************** CODE OF INTEREST ******************************/ /* Initialize fmod. */ /* Create an FMOD sample-sound object for the 'boing' sound. */ /* Create stream-sound objects for the two MP3s, and start */ /* them playing, in a paused state. */ /* Only the channel numbers for the stream sounds are made */ /* global, because that's all that we need in order to control */ /* them, once they've been started. */ /* */ void initializeSound(void) { if (FSOUND_GetVersion() < FMOD_VERSION) { printf("Error: You have the wrong FMOD version -" " you should be using FMOD %.02f\n", FMOD_VERSION); exit(1); } FSOUND_SetOutput(FSOUND_OUTPUT_OSS); if (!FSOUND_Init(44100, 4, FSOUND_INIT_USEDEFAULTMIDISYNTH)) { printf("Error: %s\n", FMOD_ErrorString(FSOUND_GetError())); exit(1); } samplesound = FSOUND_Sample_Load(FSOUND_UNMANAGED, "boing.wav", FSOUND_NORMAL, 0); if (!samplesound) { printf("Error: %s\n", FMOD_ErrorString(FSOUND_GetError())); FSOUND_Close(); exit(1); } FSOUND_Sample_SetMode(samplesound, FSOUND_LOOP_OFF); FSOUND_STREAM *mp3sound; mp3sound = FSOUND_Stream_OpenFile("tarotplane.mp3", FSOUND_NORMAL, 0); if (!mp3sound) { printf("Error: %s\n", FMOD_ErrorString(FSOUND_GetError())); FSOUND_Close(); exit(1); } mp3channel[1] = FSOUND_Stream_PlayEx(FSOUND_FREE, mp3sound, NULL, 1); mp3sound = FSOUND_Stream_OpenFile("wtc.mp3", FSOUND_NORMAL, 0); if (!mp3sound) { printf("Error: %s\n", FMOD_ErrorString(FSOUND_GetError())); FSOUND_Close(); exit(1); } mp3channel[2] = FSOUND_Stream_PlayEx(FSOUND_FREE, mp3sound, NULL, 1); } void drawFloorMesh(dms::Object&,void* data) { int resolution = (int)data; int i,j; GLfloat x,z; glNormal3f(0.0, 1.0, 0.0); for (j = 0; j < resolution; j++) { glBegin(GL_TRIANGLE_STRIP); for (i = 0; i < resolution; i++) { x = (((float)i) / resolution) * 40.0 - 20.0; z = (((float)j) / resolution) * 40.0 - 20.0; glVertex3f(x, -2.0, z); z = (((float)j+1) / resolution) * 40.0 - 20.0; glVertex3f(x, -2.0, z); } glEnd(); } } void drawTeapot(dms::Object&,void *) { glutSolidTeapot(2.0); } void updateTeapot(dms::Object& object,void *) { dms::SimpleTransform& xform = (dms::SimpleTransform&)object.transform(); xform.setRotation(dms::currentTime() * 30.0, 0.0, 1.0, 0.0); } void updateBall(dms::Object&,void *) { /*************** CODE OF INTEREST ******************************/ /* Compute the new position of the ball. Remember the old */ /* position of from the previous update, and when we detect */ /* that it has bounced, play the bounce sound. */ /* */ static float prevY = 0; float y = sin(dms::currentTime()) * 3.0; if (((y > 0) && (prevY < 0)) || ((y < 0) && (prevY > 0))) FSOUND_PlaySound(FSOUND_FREE, samplesound); prevY = y; ballTransform.setTranslation(-10.0, fabs(y), -15.0); } void drawEverything(void) { glClearColor(0.5, 0.7, 1.0, 0.0); glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); glEnable(GL_DEPTH_TEST); camera.apply(); glEnable(GL_LIGHTING); light.apply(); floormesh.drawAll(); glDisable(GL_LIGHTING); glutSwapBuffers(); dms::checkGLError("end-of-frame"); } void key(unsigned char k, int x, int y) { if (k == 27) { /*************** CODE OF INTEREST ******************************/ /* Call FSOUND_Close() before exiting, to make sure it shuts */ /* down cleanly. */ /* */ FSOUND_Close(); exit(0); } /*************** CODE OF INTEREST ******************************/ /* Whenever the spacebar is hit, switch the MP3 stream that is */ /* playing - pause the current one (if any), increment the */ /* 'currentMP3' number, and start the new one (if any) */ /* */ else if (k == ' ') { if (mp3channel[currentMP3] > -1) FSOUND_SetPaused(mp3channel[currentMP3], 1); currentMP3 = (currentMP3 + 1) % 3; if (mp3channel[currentMP3] > -1) FSOUND_SetPaused(mp3channel[currentMP3], 0); } } void specialkey(int k, int x, int y) { if (k == GLUT_KEY_LEFT) camera.turn(3); else if (k == GLUT_KEY_RIGHT) camera.turn(-3); else if (k == GLUT_KEY_UP) camera.pitch(2); else if (k == GLUT_KEY_DOWN) camera.pitch(-2); else if (k == GLUT_KEY_HOME) camera.moveForward(0.25); else if (k == GLUT_KEY_END) camera.moveForward(-0.25); else if (k == GLUT_KEY_PAGE_UP) camera.zoom(-1); else if (k == GLUT_KEY_PAGE_DOWN) camera.zoom(1); } void idle(void) { floormesh.updateAll(); glutPostRedisplay(); }