/**
\fn updateVu
*/
bool GUIPlayback::updateVu(void)
{
uint64_t time= ticktock.getElapsedMS();
// Refresh vumeter every 50 ms
if(!playbackAudio) return true;
if(time>(vuMeterPts+50))
{
uint32_t stat[6];
AVDM_getStats(stat);
UI_setVUMeter(stat);
vuMeterPts=time;
}
return true;
}
/**
\fn initializeAudio
\brief Initialize audio
*/
bool GUIPlayback::initializeAudio(void)
{
uint32_t state,latency, preload;
uint32_t small_;
uint32_t channels,frequency;
wavbuf = 0;
uint64_t startPts=firstPts;
int32_t shift=0; // unit is ms, + => delay audio, -=> advance audio
// if audio shift is activated, take it into account
//
EditableAudioTrack *ed=video_body->getDefaultEditableAudioTrack();
if(ed->audioEncodingConfig.shiftEnabled)
shift=ed->audioEncodingConfig.shiftInMs;
playbackAudio = createPlaybackFilter(startPts,shift);
if(!playbackAudio)
{
ADM_info("No audio\n");
return false;
}
channels= playbackAudio->getInfo()->channels;
frequency=playbackAudio->getInfo()->frequency;
preload= (frequency * channels)/5; // 200 ms preload
// 4 sec buffer..
wavbuf = (float *) ADM_alloc((20*sizeof(float)*preload)); // 4 secs buffers
ADM_assert(wavbuf);
// Read a at least one block to have the proper channel mapping
uint32_t fill=0;
AUD_Status status;
small_ = playbackAudio->fill(channels, wavbuf,&status);
fill+=small_;
// Call it twice to be sure it is properly setup
state = AVDM_AudioSetup(frequency, channels ,playbackAudio->getChannelMapping());
AVDM_AudioClose();
state = AVDM_AudioSetup(frequency, channels ,playbackAudio->getChannelMapping());
latency=AVDM_GetLayencyMs();
printf("[Playback] Latency : %d ms\n",latency);
audioLatency=latency; // ms -> us
if (!state)
{
GUI_Error_HIG(QT_TR_NOOP("Trouble initializing audio device"), NULL);
cleanupAudio();
return false;
}
while(fill<preload)
{
if (!(small_ = playbackAudio->fill(preload-fill, wavbuf+fill,&status)))
{
break;
}
fill+=small_;
}
nbSamplesSent = fill/channels; // In sample
AVDM_AudioPlay(wavbuf, fill);
// Let audio latency sets in...
ticktock.reset();
uint32_t slice=(frequency * channels)/100; // 10 ms
// pump data until latency is over
updateVu();
#if 0
while(ticktock.getElapsedMS()<latency)
{
if(AVDM_getMsFullness()<AUDIO_PRELOAD)
{
if (!(small_ = playbackAudio->fill(slice, wavbuf,&status)))
{
printf("[Playback] Compensating for latency failed\n");
break;
}
AVDM_AudioPlay(wavbuf, slice);
}
ADM_usleep(10*1000);
updateVu();
}
#endif
printf("[Playback] Latency is now %u\n",ticktock.getElapsedMS());
return true;
}
/**
\fn localInit
\brief Take & initialize the device
*/
bool pulseSimpleAudioDevice::localInit(void)
{
ADM_info("Pulse, initiliazing channel=%d samplerate=%d\n",(int)_channels,(int)_frequency);
pa_simple *s;
pa_sample_spec ss;
int er;
pa_buffer_attr attr;
pa_channel_map map,*pmap=NULL;
attr.maxlength = (uint32_t) -1;
attr.tlength = (uint32_t )-1;
attr.prebuf =(uint32_t) -1;
attr.minreq = (uint32_t) -1;
attr.fragsize =(uint32_t) -1;
// We want something like 20 ms latency
uint64_t bufSize=_frequency;
bufSize*=_channels;
bufSize*=2; // 1 second worth of audio
bufSize=bufSize/1000;
bufSize*=ADM_PULSE_LATENCY;
attr.tlength=bufSize; // Latency in bytes
// Channel mapping
if(_channels>2)
{
pmap=↦
map.channels=_channels;
map.map[0]=PA_CHANNEL_POSITION_FRONT_LEFT;
map.map[1]=PA_CHANNEL_POSITION_FRONT_RIGHT;
map.map[2]=PA_CHANNEL_POSITION_FRONT_CENTER;
map.map[3]=PA_CHANNEL_POSITION_REAR_LEFT;
map.map[4]=PA_CHANNEL_POSITION_REAR_RIGHT;
map.map[5]=PA_CHANNEL_POSITION_SUBWOOFER;
}
ss.format = PA_SAMPLE_S16LE;
ss.channels = _channels;
ss.rate =_frequency;
instance= pa_simple_new(NULL, // Use the default server.
"Avidemux2", // Our application's name.
PA_STREAM_PLAYBACK,
NULL, // Use the default device.
"Sound", // Description of our stream.
&ss, // Our sample format.
pmap, // Use default channel map
&attr , // Use default buffering attributes.
&er // Ignore error code.
);
if(!instance)
{
ADM_info("[PulseSimple] open failed :%s\n",pa_strerror(er));
return 0;
}
#if 0
pa_usec_t l=0;
// Latency...
Clock ticktock;
ticktock.reset();
if(0>pa_simple_write(INSTANCE,silence, sizeOf10ms,&er))
{
fprintf(stderr, __FILE__": pa_simple_write() failed: %s\n", pa_strerror(er));
}
pa_simple_drain(INSTANCE,&er);
latency=ticktock.getElapsedMS();
ADM_info("[Pulse] Latency :%"PRIu32", total %"PRIu32"\n",latency,pa_simple_get_latency(INSTANCE,&er)/1000);
#endif
ADM_info("[PulseSimple] open ok for fq=%d channels=%d\n",ss.rate,ss.channels);
return 1;
}
bool GUIPlayback::run(void)
{
uint32_t movieTime;
uint32_t systemTime;
uint32_t fn;
int refreshCounter=0;
ticktock.reset();
vuMeterPts=0;
ADMImage *previewBuffer=admPreview::getBuffer();
ADM_HW_IMAGE hwImageFormat=admPreview::getPreferedHwImageFormat();
do
{
admPreview::displayNow();;
GUI_setCurrentFrameAndTime(firstPts);
if(false==videoFilter->getNextFrameAs(hwImageFormat,&fn,previewBuffer))
{
printf("[Play] Cancelling playback, nextPicture failed\n");
break;
}
audioPump(false);
lastPts=admPreview::getCurrentPts();
systemTime = ticktock.getElapsedMS();
movieTime=(uint32_t)((lastPts-firstPts*0)/1000);
movieTime+=audioLatency;
// printf("[Playback] systemTime: %lu movieTime : %lu \r",systemTime,movieTime);
if(systemTime>movieTime) // We are late, the current PTS is after current closk
{
if(systemTime >movieTime+20)
{
refreshCounter++;
}
if(refreshCounter>15)
{
UI_purge();
UI_purge();
refreshCounter=0;
}
}
else
{
int32_t delta;
delta=movieTime-systemTime;
// a call to whatever sleep function will last at leat 10 ms
// give some time to GTK
while(delta > 10)
{
if(delta>10)
{
audioPump(true);
}else
audioPump(false);
UI_purge();
refreshCounter=0;
systemTime = ticktock.getElapsedMS();
delta=movieTime-systemTime;
}
}
}
while (!stop_req);
abort_play:
return true;
};
int main (int argc, char **argv) {
// TODO: Create a separate test suit executable instead of this code block.
#ifndef NDEBUG
testStringTokenizer();
#endif
UserSettings::load();
Game::Window window;
int r = glewInit();
assert (r == GLEW_OK);
// Setup an orthographic projection.
glMatrixMode (GL_PROJECTION);
glLoadIdentity();
gluOrtho2D (0.0, Game::Window::get_width(), 0.0, Game::Window::get_height());
// Enable color blending for transparent parts of PNG images.
glEnable (GL_BLEND);
glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glMatrixMode (GL_MODELVIEW);
Font disclaimer_text (10);
Font controls_text (12);
int fps;
static const GLfloat PADDING = 10.0F; // in pixels
#ifndef NDEBUG
static const std::string FPS_LABEL = "FPS: ";
// Create the FPS rectangle.
static const std::string FPS_LONGEST_STR = FPS_LABEL + "000";
Rectangle fps_rect;
fps_rect.w = PADDING + disclaimer_text.get_width (FPS_LONGEST_STR) + PADDING;
fps_rect.h = PADDING + disclaimer_text.get_line_height() + PADDING;
fps_rect.x = Window::get_width() - fps_rect.w;
fps_rect.y = Window::get_height() - fps_rect.h;
#endif
// Create the menu.
static const int ITEM_WIDTH = 200, ITEM_HEIGHT = 50; // in pixels
menu = new Menu (ITEM_WIDTH, ITEM_HEIGHT);
menu->consume (new MenuTextItem ("Start Game", start_game, MenuTextItem::LARGE));
menu->consume (new MenuTextItem ("Controls", display_controls, MenuTextItem::LARGE));
menu->consume (new MenuTextItem ("Options", display_options, MenuTextItem::LARGE));
menu->consume (new MenuTextItem ("Credits", display_credits, MenuTextItem::LARGE));
menu->consume (new MenuTextItem ("Exit", exit_game, MenuTextItem::LARGE));
menu_rect.w = ITEM_WIDTH;
menu_rect.h = ITEM_HEIGHT * menu->get_item_count();
menu_rect.x = 400;
menu_rect.y = (Window::get_height() - menu_rect.h) / 2;
menu->set_position (menu_rect);
UI::Manager menu_ui_manager;
menu_ui_manager.consume (menu);
display_menu (NULL);
UserSettingsPanel *user_settings_widget = NULL;
// Main game loop.
const int DESIRED_FPS = 60;
static const unsigned int DESIRED_FRAME_DURATION = 1000 / DESIRED_FPS;
Clock clock;
do {
unsigned int start_tick = clock.getElapsedMS();
Controllers::Manager::update (window);
// Update, draw, and eventually terminate the world.
if (activity == WORLD) {
if (Controllers::Manager::is_escape_pressed()) {
display_menu (NULL);
} else {
world->update (start_tick);
if (world->get_status() == World::PLAYER_WON) {
delete world;
world = NULL;
display_credits (NULL);
} else if (world->get_status() == World::PLAYER_LOST) {
delete world;
world = NULL;
start_game (NULL);
} else if (world->get_status() == World::RUNNING) {
world->draw();
}
}
} else if (activity == CREDITS) {
credits->update (start_tick);
if (credits->is_done() || Controllers::Manager::is_escape_pressed()) {
delete credits;
credits = NULL;
display_menu (NULL);
} else {
credits->draw (window);
}
} else {
// Draw the backdrop.
if (world) {
world->draw();
// Blacken the world by 80%.
glColor4f (0.0F, 0.0F, 0.0F, 0.8F);
glPushMatrix();
glLoadIdentity();
glRecti (0, 0, Window::get_width(), Window::get_height());
glPopMatrix();
} else {
// Draw the background.
glPushMatrix();
glLoadIdentity();
static Animation background ("ui/main_menu.png");
static const GLfloat BG_SCALE =
(GLfloat)Game::Window::get_width() / background.get_width();
glScalef (BG_SCALE, BG_SCALE, 0.0F);
background.draw();
glPopMatrix();
glMatrixMode (GL_MODELVIEW);
glColor3ub (64, 40, 196); // dark purple
// Draw the disclaimer.
static const std::string INFO_STR = "Contributions copyright (2011) by their "
"respective authors listed in the credits. Not a finished work.";
static const int INFO_X =
(Game::Window::get_width() - disclaimer_text.get_width (INFO_STR)) / 2;
glLoadIdentity();
glTranslatef (INFO_X, PADDING, 0.0F);
disclaimer_text.draw (INFO_STR);
// Draw the version.
static const std::string VER_STR = "v 0.7";
static const int VER_X = Window::get_width() - PADDING - disclaimer_text.get_width (VER_STR);
glLoadIdentity();
glTranslatef (VER_X, PADDING, 0.0F);
disclaimer_text.draw (VER_STR);
}
// Draw the title.
glPushMatrix();
glLoadIdentity();
glTranslatef (title_x, title_y, 0.0F);
glColor3ub (64, 40, 196); // dark purple
title_text.draw (title);
glPopMatrix();
if (activity == CONTROLS) {
if (Controllers::Manager::is_escape_pressed()) {
display_menu (NULL);
} else {
// Draw the controls.
glPushMatrix();
glLoadIdentity();
glTranslatef (menu_rect.x,
menu_rect.get_top() - controls_text.get_line_height(),
0.0F);
glColor3ub (156, 120, 252); // light purple
controls_text.draw (
"Arrows: Move, aim\n"
"z: fire weapon, select menu item\n"
"a, s: Select weapon\n"
"x: Jump\n"
"Down: Use door, talk, etc\n"
"Esc: Back\n"
"\n"
"F1: Editor\n"
"Mouse buttons 3, 4: Select map layer\n"
"Mouse wheel: Select brush\n"
"Left click: Select or use brush\n"
"Right click: Copy brush\n"
"\n"
"F2 Terminal");
glPopMatrix();
}
} else if (activity == OPTIONS) {
if (!user_settings_widget) {
user_settings_widget = new UserSettingsPanel();
}
user_settings_widget->update (start_tick);
user_settings_widget->draw();
if (Controllers::Manager::is_escape_pressed()) {
delete user_settings_widget;
user_settings_widget = NULL;
display_menu (NULL);
}
} else if (activity == MAIN_MENU) {
// Select a menu item by hot key.
static Controllers::Player pc;
if (pc.is_up_pressed()) {
menu->decrement_highlight();
}
if (pc.is_down_pressed()) {
menu->increment_highlight();
}
if (pc.is_weapon_fire_pressed()) {
menu->select_highlighted();
}
menu_ui_manager.update (start_tick);
menu_ui_manager.draw();
}
}
// Draw FPS if compiled for debugging.
#ifndef NDEBUG
// Create the FPS string.
std::stringstream fps_ss;
fps_ss << FPS_LABEL << fps;
std::string fps_str = fps_ss.str();
// Move to the FPS label's location.
glLoadIdentity();
glTranslatef (fps_rect.x, fps_rect.y, 0.0F);
// Draw the FPS label's background.
glColor4f (0.0F, 0.0F, 0.0F, 0.8F); // 80% black
glRecti (0, 0, fps_rect.w, fps_rect.h);
// Draw the FPS label.
glTranslatef (PADDING, PADDING, 0.0F);
glColor3ub (64, 40, 196); // dark purple
disclaimer_text.draw (fps_str);
#endif
window.refresh();
unsigned int frame_duration = clock.getElapsedMS() - start_tick;
if (frame_duration >= DESIRED_FRAME_DURATION) {
fps = 1000 / frame_duration;
} else { // if the frame duration is less than desired
fps = DESIRED_FPS;
clock.sleep (DESIRED_FRAME_DURATION - frame_duration);
}
} while (activity != EXIT && !Controllers::Manager::is_app_closed());
delete world;
delete credits;
delete user_settings_widget;
return EXIT_SUCCESS;
}