[Performous-commit] Tapio Vierros : Webcam can be disabled from config or toggled during gameplay.

[Tapio V. <aa...@us...>]

Module: performous
Branch: instrumentgraph
Commit: 9866cca05a8ec52bc1e85c0850122700e923cf1b

Author: Tapio Vierros <tap...@gm...>
Date:   Sun May  9 21:24:56 2010 +0300

Webcam can be disabled from config or toggled during gameplay.

---

 data/schema.xml     |    6 ++++++
 game/screen_sing.cc |   14 ++++++++++----
 game/screen_sing.hh |    4 ++--
 game/webcam.cc      |    2 +-
 game/webcam.hh      |    1 +
 5 files changed, 20 insertions(+), 7 deletions(-)

diff --git a/data/schema.xml b/data/schema.xml
index 42a49f3..1eea68e 100644
--- a/data/schema.xml
+++ b/data/schema.xml
@@ -118,6 +118,12 @@ to save the current settings to XML.
 			<long>Allows completely disabling background videos. It is recommended to leave this enabled as Performous will still smoothly fade out the video if your computer is not fast enough.</long>
 		</locale>
 	</entry>
+	<entry name="graphic/webcam" type="bool" value="true">
+		<locale name="C">
+			<short>Webcam background</short>
+			<long>Performous can try to use webcam as a background video. You can disable it if it annoys you.</long>
+		</locale>
+	</entry>
 	<entry name="graphic/3d_notes" type="bool" value="true">
 		<locale name="C">
 			<short>3D notes</short>
diff --git a/game/screen_sing.cc b/game/screen_sing.cc
index 8b0f914..d7e18e2 100644
--- a/game/screen_sing.cc
+++ b/game/screen_sing.cc
@@ -56,6 +56,9 @@ void ScreenSing::enter() {
 			std::cerr << e.what() << std::endl;
 		}
 	}
+	if (config["graphic/webcam"].b()) { // Initialize webcam
+		m_cam.reset(new Webcam());
+	}
 	if (!m_song->video.empty() && config["graphic/video"].b()) { // Load video
 		m_video.reset(new Video(m_song->path + m_song->video, m_song->videoGap));
 	}
@@ -175,6 +178,7 @@ void ScreenSing::exit() {
 	m_engine.reset();
 	m_help.reset();
 	m_pause_icon.reset();
+	m_cam.reset();
 	m_video.reset();
 	m_background.reset();
 	m_song->dropNotes();
@@ -243,6 +247,7 @@ void ScreenSing::manageEvent(SDL_Event event) {
 		if (key == SDLK_v) m_audio.streamFade("vocals", event.key.keysym.mod & KMOD_SHIFT ? 1.0 : 0.0);
 		if (key == SDLK_k) dispInFlash(++config["game/karaoke_mode"]); // Toggle karaoke mode
 		if (key == SDLK_w) dispInFlash(++config["game/pitch"]); // Toggle pitch wave
+		if (key == SDLK_a) dispInFlash(++config["graphic/webcam"]); // Toggle webcam
 		// Latency settings
 		if (key == SDLK_F1) dispInFlash(--config["audio/video_delay"]);
 		if (key == SDLK_F2) dispInFlash(++config["audio/video_delay"]);
@@ -298,7 +303,11 @@ void ScreenSing::draw() {
 			if (ar > arMax || (m_video && ar > arMin)) fillBG();  // Fill white background to avoid black borders
 			m_background->draw();
 		} else fillBG();
-		if (m_video) { m_video->render(time); double tmp = m_video->dimensions().ar(); if (tmp > 0.0) ar = tmp; }
+		// Video
+		if (m_video && !m_cam && !(*m_cam)()) { m_video->render(time); double tmp = m_video->dimensions().ar(); if (tmp > 0.0) ar = tmp; }
+		// Webcam
+		if (m_cam && config["graphic/webcam"].b()) m_cam->render(time);
+		// Top/bottom borders
 		ar = clamp(ar, arMin, arMax);
 		double offset = 0.5 / ar + 0.2;
 		theme->bg_bottom.dimensions.fixedWidth(1.0).bottom(offset);
@@ -307,9 +316,6 @@ void ScreenSing::draw() {
 		theme->bg_top.draw();
 	}
 
-	// Webcam image
-	m_cam.render(time);
-
 	if( !m_dancers.empty() ) {
 		danceLayout(time);
 		//m_layout_singer->draw(time, LayoutSinger::LEFT);
diff --git a/game/screen_sing.hh b/game/screen_sing.hh
index b7e4f68..e73eb17 100644
--- a/game/screen_sing.hh
+++ b/game/screen_sing.hh
@@ -50,7 +50,7 @@ class ScreenSing: public Screen {
   public:
 	/// constructor
 	ScreenSing(std::string const& name, Audio& audio, Capture& capture, Database& database, Backgrounds& bgs):
-	  Screen(name), m_audio(audio), m_capture(capture), m_database(database), m_backgrounds(bgs), m_latencyAV(), m_only_singers_alive(true), m_cam()
+	  Screen(name), m_audio(audio), m_capture(capture), m_database(database), m_backgrounds(bgs), m_latencyAV(), m_only_singers_alive(true)
 	{}
 	void enter();
 	void exit();
@@ -81,6 +81,7 @@ class ScreenSing: public Screen {
 	boost::scoped_ptr<ProgressBar> m_progress;
 	boost::scoped_ptr<Surface> m_background;
 	boost::scoped_ptr<Video> m_video;
+	boost::scoped_ptr<Webcam> m_cam;
 	boost::scoped_ptr<Surface> m_pause_icon;
 	boost::scoped_ptr<Surface> m_help;
 	boost::scoped_ptr<Engine> m_engine;
@@ -91,6 +92,5 @@ class ScreenSing: public Screen {
 	boost::shared_ptr<ThemeSing> theme;
 	AnimValue m_quitTimer;
 	bool m_only_singers_alive;
-	Webcam m_cam;
 };
 
diff --git a/game/webcam.cc b/game/webcam.cc
index 51cbb00..5595309 100644
--- a/game/webcam.cc
+++ b/game/webcam.cc
@@ -14,7 +14,7 @@ Webcam::Webcam(int cam_id): m_capture(NULL), m_timestamp(0) {
 void Webcam::render(double time) {
 	if (!m_capture) return;
 	IplImage* frame = 0;
-	if (time > m_timestamp + 0.333) {
+	if (time > m_timestamp + 0.5) {
 		frame = cvQueryFrame(m_capture);
 		if (!frame) return;
 		m_surface.load(frame->width, frame->height, pix::RGB, (const unsigned char*)frame->imageData);
diff --git a/game/webcam.hh b/game/webcam.hh
index 33caad1..e1b7ce4 100644
--- a/game/webcam.hh
+++ b/game/webcam.hh
@@ -6,6 +6,7 @@
 
 class Webcam {
   public:
+	/// cam_id -1 means pick any device
 	Webcam(int cam_id = -1);
 
 	~Webcam() { cvReleaseCapture(&m_capture); }