X-Git-Url: http://sraa.de/git/?a=blobdiff_plain;f=dol%2Fsrc%2Fdol%2Fvisitor%2Fcell%2Flib%2Fspu%2FWindowedFifo.h;fp=dol%2Fsrc%2Fdol%2Fvisitor%2Fcell%2Flib%2Fspu%2FWindowedFifo.h;h=5ef97d9d7a3cad4fd6d59b7225486e4d54ea7e6e;hb=8c411cf24ed0eb889191aaeafd8fa1e69081df42;hp=0000000000000000000000000000000000000000;hpb=dea7a4fb1ed110d3ce6e6d9255103d724bd66c0e;p=jump.git

diff --git a/dol/src/dol/visitor/cell/lib/spu/WindowedFifo.h b/dol/src/dol/visitor/cell/lib/spu/WindowedFifo.h
new file mode 100644
index 0000000..5ef97d9
--- /dev/null
+++ b/dol/src/dol/visitor/cell/lib/spu/WindowedFifo.h
@@ -0,0 +1,60 @@
+#ifndef _WINDOWEDFIFO_H_
+#define _WINDOWEDFIFO_H_
+
+#include <stdio.h>
+#include <string.h>
+
+#include "../constant.h"
+
+#include "../lib/malloc_align.h"
+#include "../lib/free_align.h"
+
+class WindowedFifo {
+    public:
+        WindowedFifo(unsigned size);
+        virtual ~WindowedFifo();
+
+        // Write
+		virtual unsigned reserve(char** destination, unsigned len);
+        virtual void release();
+
+		// Read
+        virtual unsigned capture(char** destination, unsigned len);
+        virtual void consume();
+
+		// General functions
+        virtual unsigned used() const;
+        virtual unsigned unused() const;
+        virtual unsigned size() const;
+
+		// DMA functions
+        virtual char *getQueuePointer();
+        virtual void dmaRead(unsigned len);
+        virtual unsigned dmaStart();
+        virtual bool dmaAllowed();
+		virtual unsigned dmaWrite(const void *source, unsigned len);
+
+		// Global variables
+		unsigned _inTail;
+
+    protected:
+        char *_buffer;          // Pointer to the buffer
+        
+		unsigned _head;         // Current position of the head
+        unsigned _tail;         // Current position of the tail
+        unsigned _headRoom;     // HeadRoom pointer 
+        unsigned _tailRoom;     // Tailroom pointer
+        
+		unsigned _size;         // Total space of the buffer
+        unsigned _use;          // How many data are used in the buffer
+        unsigned _writeReserve; // Number of tokens one is writing
+        unsigned _readReserve;  // Number of tokens one is reading
+        
+		bool _isHeadReserved;   // Head reserved?
+        bool _isTailReserved;   // Tail reserved?
+
+		unsigned _blocked;      // Blocked number the request has to wait
+        bool _activeDMA;        // Is there an active DMA on this buffer
+};
+
+#endif