Second Life viewer sources 1.13.2.12

1 files changed, 136 insertions, 0 deletions

diff --git a/linden/indra/llmedia/llmediabase.h b/linden/indra/llmedia/llmediabase.h
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+++ b/linden/indra/llmedia/llmediabase.h
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+/** 
+ * @file llmediabase.h
+ * @brief LLMedia support - base class
+ *
+ * Copyright (c) 2005-2007, Linden Research, Inc.
+ * 
+ * The source code in this file ("Source Code") is provided by Linden Lab
+ * to you under the terms of the GNU General Public License, version 2.0
+ * ("GPL"), unless you have obtained a separate licensing agreement
+ * ("Other License"), formally executed by you and Linden Lab.  Terms of
+ * the GPL can be found in doc/GPL-license.txt in this distribution, or
+ * online at http://secondlife.com/developers/opensource/gplv2
+ * 
+ * There are special exceptions to the terms and conditions of the GPL as
+ * it is applied to this Source Code. View the full text of the exception
+ * in the file doc/FLOSS-exception.txt in this software distribution, or
+ * online at http://secondlife.com/developers/opensource/flossexception
+ * 
+ * By copying, modifying or distributing this software, you acknowledge
+ * that you have read and understood your obligations described above,
+ * and agree to abide by those obligations.
+ * 
+ * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
+ * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
+ * COMPLETENESS OR PERFORMANCE.
+ */
+
+// header guard
+#ifndef llmediabase_h
+#define llmediabase_h
+
+#include "llstring.h"
+#include "llmediaemitter.h"
+#include "llmediaobservers.h"
+#include "llmediaemitterevents.h"
+
+class LLMediaBase
+{
+        public:
+                LLMediaBase ();
+                
+                // do the right thing with dtor
+                virtual ~LLMediaBase ()
+                {
+                };
+
+                ///////////////////////////////////////////////////////////////////////////////
+                // public interface:
+
+                ///////////////////////////////////////////////////////////////////////////////
+                //      different types of supported media
+                enum MediaType { Unknown, QuickTime };
+
+                ///////////////////////////////////////////////////////////////////////////////
+                //      factory method based on explicit media type
+                static LLMediaBase* make ( const MediaType mediaTypeIn, S32 width_pixels, S32 height_pixels );
+                
+                // Result codes for updateMedia
+                enum
+                {
+                        updateMediaNoChanges,
+                        updateMediaNeedsUpdate,
+                        updateMediaNeedsSizeChange
+
+                } updateMediaResult;
+
+                // housekeeping
+                virtual BOOL setBuffer ( U8* bufferIn ) = 0;
+                virtual bool setBufferSize(S32 width_pixels, S32 height_pixels) { return false; }
+                virtual BOOL init ();
+                virtual BOOL load ( const LLString& urlIn );
+                virtual BOOL unload ();
+
+                // media data
+                virtual S32 updateMedia () = 0;
+                virtual U8* getMediaData () = 0;
+                virtual S32 getTextureWidth () const;
+                virtual S32 getTextureHeight () const;
+                virtual S32 getTextureDepth () const;
+                virtual S32 getTextureFormatInternal () const;
+                virtual S32 getTextureFormatPrimary () const;
+                virtual S32 getTextureFormatType () const;
+                virtual S32 getTextureFormatSwapBytes () const;
+                virtual S32 getMediaWidth () const;
+                virtual S32 getMediaHeight () const;
+                virtual S32 getMediaDepthBytes () const;
+                virtual S32 getMediaBufferSize () const;
+
+                // allow consumers to observe media events
+                virtual BOOL addMediaObserver( LLMediaObserver* observerIn );
+                virtual BOOL remMediaObserver( LLMediaObserver* observerIn );
+
+                // MBW -- XXX -- These don't belong here!
+                // LLMediaEngine should really only deal with LLMediaMovieBase subclasses
+                virtual BOOL stop () { return TRUE; }
+                virtual BOOL play () { return TRUE; }
+                virtual BOOL loop ( S32 howMany )  { return TRUE; }
+                virtual BOOL pause ()  { return TRUE; }
+                virtual BOOL seek ( F64 time ) { return TRUE; }
+                virtual BOOL setVolume ( F32 volumeIn ) { return TRUE; }
+                virtual BOOL isLoaded () const { return TRUE; }
+                virtual BOOL isPaused () const { return FALSE; }
+                virtual BOOL isPlaying () const { return TRUE; }
+                virtual BOOL isLooping () const { return FALSE; }
+                virtual void setAutoScaled ( BOOL autoScaledIn ) {}
+                
+        protected:
+                // event emitter
+                LLMediaEmitter<LLMediaObserver> mMediaEventEmitter;
+                
+                U32 mBufferChangeCount;                 // Incremented when the buffer changes
+                U32 mLastBufferChangeCount;             // Set to mBufferChangeCount when the buffer is reported as changed
+                
+                S32 mMediaWidth;
+                S32 mMediaHeight;
+                S32 mMediaDepthBytes;
+                S32 mMediaRowbytes;
+                S32 mTextureWidth;
+                S32 mTextureHeight;
+                S32 mTextureDepth;
+                S32 mTextureFormatInternal;
+                S32 mTextureFormatPrimary;
+                S32 mTextureFormatType;
+                S32 mTextureFormatSwapBytes;
+
+        public:
+        
+                // Has memory buffer been updated?  (page content change, scroll, movie frame drawn, etc)
+                void bufferChanged() { mBufferChangeCount++; }
+                bool getBufferChanged() const { return mBufferChangeCount != mLastBufferChangeCount; }
+                void resetBufferChanged() { mLastBufferChangeCount = mBufferChangeCount; }
+
+};
+
+
+#endif // llmediabase_h