--- global.h	2002/07/09 22:19:43	1.11
+++ global.h	2003/04/10 13:05:54	1.21.2.4
@@ -11,8 +11,8 @@
 #define MODE_INTER4V	2
 #define	MODE_INTRA		3
 #define MODE_INTRA_Q	4
-#define MODE_STUFFING	7
 #define MODE_NOT_CODED	16
+#define MODE_NOT_CODED_GMC	17
 
 /* --- bframe specific --- */
 
@@ -21,6 +21,101 @@
 #define MODE_BACKWARD		2
 #define MODE_FORWARD		3
 #define MODE_DIRECT_NONE_MV	4
+#define MODE_DIRECT_NO4V	5
+
+
+// vop coding types 
+// intra, prediction, backward, sprite, not_coded
+#define I_VOP	0
+#define P_VOP	1
+#define B_VOP	2
+#define S_VOP	3
+#define N_VOP	4
+
+/* convert mpeg-4 coding type i/p/b/s_VOP to XVID_TYPE_xxx */
+static __inline int
+coding2type(int coding_type)
+{
+	return coding_type + 1;
+}
+
+/* convert XVID_TYPE_xxx to bitstream coding type i/p/b/s_VOP */
+static __inline int
+type2coding(int xvid_type)
+{
+	return xvid_type - 1;
+}
+
+
+typedef struct
+{
+	int x;
+	int y;
+}
+VECTOR;
+
+
+
+typedef struct 
+{
+	VECTOR duv[3];
+}
+WARPPOINTS;
+
+/* save all warping parameters for GMC once and for all, instead of 
+   recalculating for every block. This is needed for encoding&decoding
+   When switching to incremental calculations, this will get much shorter 
+*/
+
+/*	we don't include WARPPOINTS wp	here, but in FRAMEINFO itself */
+
+typedef struct 
+{
+	int num_wp;		//	[input]: 0=none, 1=translation, 2,3 = warping
+							//  a value of -1 means: "structure not initialized!"
+	int s;					//  [input]: calc is done with 1/s pel resolution
+
+	int W;
+	int H;
+	
+	int ss;		
+	int smask;	
+	int sigma;     
+	
+	int r;		
+	int rho;	
+
+	int i0s;
+	int j0s;
+	int i1s;
+	int j1s;
+	int i2s;
+	int j2s;
+	
+	int i1ss; 
+	int j1ss; 
+	int i2ss; 
+	int j2ss; 
+
+	int alpha;
+	int beta;
+	int Ws; 
+	int Hs; 
+	
+	int dxF, dyF, dxG, dyG; 
+	int Fo, Go;
+	int cFo, cGo;
+}
+GMC_DATA;
+
+
+typedef struct
+{
+	uint8_t *y;
+	uint8_t *u;
+	uint8_t *v;
+}
+IMAGE;
 
 
 typedef struct
@@ -32,6 +127,7 @@
 	uint32_t *tail;
 	uint32_t *start;
 	uint32_t length;
+	uint32_t initpos;
 }
 Bitstream;
 
@@ -59,6 +155,7 @@
 
 	VECTOR mv16;
 	VECTOR pmvs[4];
+	VECTOR qmvs[4];				// mvs in quarter pixel resolution
 
 	int32_t sad8[4];			// SAD values for inter4v-VECTORs
 	int32_t sad16;				// SAD value for inter-VECTOR
@@ -69,24 +166,22 @@
 	// bframe stuff
 
 	VECTOR b_mvs[4];
-	VECTOR b_pmvs[4];
+	VECTOR b_qmvs[4];
 
 	int mb_type;
-	int dbquant;
 
 	// stuff for block based ME (needed for Qpel ME)
 	// backup of last integer ME vectors/sad
-	
-	VECTOR i_mv16;
-	VECTOR i_pmvs[4];
 
-	int32_t i_sad8[4];			// SAD values for inter4v-VECTORs
-	int32_t i_sad16;				// SAD value for inter-VECTOR
+	VECTOR amv; // average motion vectors from GMC 
+	int32_t mcsel;
+
+/* This structure has become way to big! What to do? Split it up?   */ 
 
 }
 MACROBLOCK;
 
-static __inline int8_t
+static __inline uint32_t
 get_dc_scaler(uint32_t quant,
 			  uint32_t lum)
 {
@@ -112,8 +207,11 @@
 
 #define MIN(X, Y) ((X)<(Y)?(X):(Y))
 #define MAX(X, Y) ((X)>(Y)?(X):(Y))
-#define ABS(X)    (((X)>0)?(X):-(X))
+/* #define ABS(X)    (((X)>0)?(X):-(X)) */
 #define SIGN(X)   (((X)>0)?1:-1)
+#define CLIP(X,AMIN,AMAX)   (((X)<(AMIN)) ? (AMIN) : ((X)>(AMAX)) ? (AMAX) : (X))
+#define DIV_DIV(a,b)    (((a)>0) ? ((a)+((b)>>1))/(b) : ((a)-((b)>>1))/(b))
+#define SWAP(_T_,A,B)    { _T_ tmp = A; A = B; B = tmp; }
 
 
 #endif							/* _GLOBAL_H_ */