Some optimisations to the DXA player to reduce the amount of needless mallocing

and memcpying it does.

This commit also contains some code protected by #ifdef DXA_EXPERIMENT_MAXD
that allows for reading an extended header on a .dxa file and using a MAXD
chunk, if found, to reduce the amount of memory required to play a movie.

Whether this gets enabled or not will ultimately depend on whether the savings
are justified (i.e. if we can find a case where it makes enough difference).

svn-id: r28047

1 files changed, 7 insertions, 3 deletions

diff --git a/graphics/dxa_player.h b/graphics/dxa_player.h
index b8155153c9..5415e440d2 100644
--- a/graphics/dxa_player.h
+++ b/graphics/dxa_player.h
@@ -47,6 +47,10 @@ protected:
 	byte *_frameBuffer2;
 	byte *_scaledBuffer;
 	byte *_drawBuffer;
+	byte *_inBuffer;
+	uint32 _inBufferSize;
+	byte *_decompBuffer;
+	uint32 _decompBufferSize;
 	uint16 _width;
 	uint16 _height, _curHeight;
 	uint16 _framesCount;
@@ -121,10 +125,10 @@ protected:
 	void decodeNextFrame();
 
 	void decodeZlib(byte *data, int size, int totalSize);
-	void decode12(byte *data, int size, int totalSize);
-	void decode13(byte *data, int size, int totalSize);
+	void decode12(int size);
+	void decode13(int size);
 };
- 
+
 } // End of namespace Graphics
 
 #endif