SCI32: Implement known-used portions of kPlayDuck

1 files changed, 103 insertions, 2 deletions

diff --git a/engines/sci/graphics/video32.h b/engines/sci/graphics/video32.h
index 5ed8fd954a..fae5cafbbe 100644
--- a/engines/sci/graphics/video32.h
+++ b/engines/sci/graphics/video32.h
@@ -28,10 +28,11 @@
 #include "common/str.h"           // for String
 #include "sci/engine/vm_types.h"  // for reg_t
 #include "sci/video/robot_decoder.h" // for RobotDecoder
+#include "sci/sound/audio32.h"    // for Audio32::kMaxVolume
+#include "video/avi_decoder.h"    // for AVIDecoder::setVolume
 
 namespace Video {
 class AdvancedVMDDecoder;
-class AVIDecoder;
 }
 namespace Sci {
 class EventManager;
@@ -531,6 +532,103 @@ private:
 	bool _showCursor;
 };
 
+#pragma mark -
+#pragma mark DuckPlayer
+
+class DuckPlayer {
+public:
+	enum DuckStatus {
+		kDuckClosed  = 0,
+		kDuckOpen    = 1,
+		kDuckPlaying = 2,
+		kDuckPaused  = 3
+	};
+
+	DuckPlayer(SegManager *segMan, EventManager *eventMan);
+
+	~DuckPlayer();
+
+	/**
+	 * Opens a stream to a Duck resource.
+	 */
+	void open(const GuiResourceId resourceId, const int displayMode, const int16 x, const int16 y);
+
+	/**
+	 * Stops playback and closes the currently open Duck stream.
+	 */
+	void close();
+
+	/**
+	 * Begins playback of the current Duck video.
+	 */
+	void play(const int lastFrameNo);
+
+	/**
+	 * Sets a flag indicating that an opaque plane should be added
+	 * to the graphics manager underneath the video surface during
+	 * playback.
+	 */
+	void setDoFrameOut(const bool value) { _doFrameOut = value; }
+
+	/**
+	 * Sets the volume of the decoder.
+	 */
+	void setVolume(const uint8 value) {
+		_volume = (uint)value * Audio::Mixer::kMaxChannelVolume / Audio32::kMaxVolume;
+		_decoder->setVolume(_volume);
+	}
+
+private:
+	SegManager *_segMan;
+	EventManager *_eventMan;
+	Video::AVIDecoder *_decoder;
+
+	/**
+	 * An empty plane drawn behind the video when the doFrameOut
+	 * flag is true.
+	 */
+	Plane *_plane;
+
+	/**
+	 * The player status.
+	 */
+	DuckStatus _status;
+
+	/**
+	 * The screen rect where the video should be drawn.
+	 */
+	Common::Rect _drawRect;
+
+	/**
+	 * The playback volume for the player.
+	 */
+	uint8 _volume;
+
+	/**
+	 * If true, frameOut will be called during Duck video playback to update
+	 * other parts of the screen.
+	 */
+	bool _doFrameOut;
+
+	/**
+	 * If true, the video will be pixel doubled during playback.
+	 */
+	bool _pixelDouble;
+
+	/**
+	 * The buffer used to perform scaling of the video.
+	 */
+	byte *_scaleBuffer;
+
+	/**
+	 * Renders the current frame to the system video buffer.
+	 */
+	void renderFrame() const;
+};
+
+#pragma mark -
+#pragma mark Video32
+
 /**
  * Video32 provides facilities for playing back
  * video in SCI engine.
@@ -541,18 +639,21 @@ public:
 	_SEQPlayer(segMan),
 	_AVIPlayer(segMan, eventMan),
 	_VMDPlayer(segMan, eventMan),
-	_robotPlayer(segMan) {}
+	_robotPlayer(segMan),
+	_duckPlayer(segMan, eventMan) {}
 
 	SEQPlayer &getSEQPlayer() { return _SEQPlayer; }
 	AVIPlayer &getAVIPlayer() { return _AVIPlayer; }
 	VMDPlayer &getVMDPlayer() { return _VMDPlayer; }
 	RobotDecoder &getRobotPlayer() { return _robotPlayer; }
+	DuckPlayer &getDuckPlayer() { return _duckPlayer; }
 
 private:
 	SEQPlayer _SEQPlayer;
 	AVIPlayer _AVIPlayer;
 	VMDPlayer _VMDPlayer;
 	RobotDecoder _robotPlayer;
+	DuckPlayer _duckPlayer;
 };
 } // End of namespace Sci