Use updated motion compensation routines.

Originally committed as revision 713 to svn://svn.ffmpeg.org/ffmpeg/trunk

1 files changed, 114 insertions, 99 deletions

diff --git a/libavcodec/alpha/dsputil_alpha.c b/libavcodec/alpha/dsputil_alpha.c
index 942eef780c..db11d529fb 100644
--- a/libavcodec/alpha/dsputil_alpha.c
+++ b/libavcodec/alpha/dsputil_alpha.c
@@ -105,132 +105,137 @@ void add_pixels_clamped_mvi(const DCTELEM *block, uint8_t *pixels,
 }
 #endif
 
-/* Average 8 unsigned bytes in parallel: (b1 + b2) >> 1
-   Since the immediate result could be greater than 255, we do the
-   shift first. The result is too low by one if the bytes were both
-   odd, so we need to add (l1 & l2) & BYTE_VEC(0x01).  */
-static inline UINT64 avg2_no_rnd(UINT64 l1, UINT64 l2)
+static inline uint64_t avg2_no_rnd(uint64_t a, uint64_t b)
 {
-    UINT64 correction = (l1 & l2) & BYTE_VEC(0x01);
-    l1 = (l1 & ~BYTE_VEC(0x01)) >> 1;
-    l2 = (l2 & ~BYTE_VEC(0x01)) >> 1;
-    return l1 + l2 + correction;
+    return (a & b) + (((a ^ b) & BYTE_VEC(0xfe)) >> 1);
 }
 
-/* Average 8 bytes with rounding: (b1 + b2 + 1) >> 1
-   The '1' only has an effect when one byte is even and the other odd,
-   i. e. we also need to add (l1 ^ l2) & BYTE_VEC(0x01).
-   Incidentally, that is equivalent to (l1 | l2) & BYTE_VEC(0x01).  */
-static inline UINT64 avg2(UINT64 l1, UINT64 l2)
+static inline uint64_t avg2(uint64_t a, uint64_t b)
 {
-    UINT64 correction = (l1 | l2) & BYTE_VEC(0x01);
-    l1 = (l1 & ~BYTE_VEC(0x01)) >> 1;
-    l2 = (l2 & ~BYTE_VEC(0x01)) >> 1;
-    return l1 + l2 + correction;
+    return (a | b) - (((a ^ b) & BYTE_VEC(0xfe)) >> 1);    
 }
 
-static inline UINT64 avg4(UINT64 l1, UINT64 l2, UINT64 l3, UINT64 l4)
+static inline uint64_t avg4(uint64_t l1, uint64_t l2, uint64_t l3, uint64_t l4)
 {
-    UINT64 r1 = ((l1 & ~BYTE_VEC(0x03)) >> 2)
-	      + ((l2 & ~BYTE_VEC(0x03)) >> 2)
-	      + ((l3 & ~BYTE_VEC(0x03)) >> 2)
-	      + ((l4 & ~BYTE_VEC(0x03)) >> 2);
-    UINT64 r2 = ((  (l1 & BYTE_VEC(0x03))
-		  + (l2 & BYTE_VEC(0x03))
-		  + (l3 & BYTE_VEC(0x03))
-		  + (l4 & BYTE_VEC(0x03))
-		  + BYTE_VEC(0x02)) >> 2) & BYTE_VEC(0x03);
+    uint64_t r1 = ((l1 & ~BYTE_VEC(0x03)) >> 2)
+		+ ((l2 & ~BYTE_VEC(0x03)) >> 2)
+		+ ((l3 & ~BYTE_VEC(0x03)) >> 2)
+		+ ((l4 & ~BYTE_VEC(0x03)) >> 2);
+    uint64_t r2 = ((  (l1 & BYTE_VEC(0x03))
+		    + (l2 & BYTE_VEC(0x03))
+		    + (l3 & BYTE_VEC(0x03))
+		    + (l4 & BYTE_VEC(0x03))
+		    + BYTE_VEC(0x02)) >> 2) & BYTE_VEC(0x03);
     return r1 + r2;
 }
 
-static inline UINT64 avg4_no_rnd(UINT64 l1, UINT64 l2, UINT64 l3, UINT64 l4)
+static inline uint64_t avg4_no_rnd(uint64_t l1, uint64_t l2,
+				   uint64_t l3, uint64_t l4)
 {
-    UINT64 r1 = ((l1 & ~BYTE_VEC(0x03)) >> 2)
-	      + ((l2 & ~BYTE_VEC(0x03)) >> 2)
-	      + ((l3 & ~BYTE_VEC(0x03)) >> 2)
-	      + ((l4 & ~BYTE_VEC(0x03)) >> 2);
-    UINT64 r2 = (( (l1 & BYTE_VEC(0x03))
-		 + (l2 & BYTE_VEC(0x03))
-		 + (l3 & BYTE_VEC(0x03))
-		 + (l4 & BYTE_VEC(0x03))
-		 + BYTE_VEC(0x01)) >> 2) & BYTE_VEC(0x03);
+    uint64_t r1 = ((l1 & ~BYTE_VEC(0x03)) >> 2)
+		+ ((l2 & ~BYTE_VEC(0x03)) >> 2)
+		+ ((l3 & ~BYTE_VEC(0x03)) >> 2)
+		+ ((l4 & ~BYTE_VEC(0x03)) >> 2);
+    uint64_t r2 = ((  (l1 & BYTE_VEC(0x03))
+		    + (l2 & BYTE_VEC(0x03))
+		    + (l3 & BYTE_VEC(0x03))
+		    + (l4 & BYTE_VEC(0x03))
+		    + BYTE_VEC(0x01)) >> 2) & BYTE_VEC(0x03);
     return r1 + r2;
 }
 
-#define PIXOPNAME(suffix) put ## suffix
-#define BTYPE UINT8
-#define AVG2 avg2
-#define AVG4 avg4
-#define STORE(l, b) stq(l, b)
-#include "pixops.h"
-#undef PIXOPNAME
-#undef BTYPE
-#undef AVG2
-#undef AVG4
-#undef STORE
+#define OP(LOAD, STORE, INCR)			\
+    do {					\
+	STORE(LOAD(pixels), block);		\
+	pixels += line_size;			\
+	block += INCR;				\
+    } while (--h)
 
-#define PIXOPNAME(suffix) put_no_rnd ## suffix
-#define BTYPE UINT8
-#define AVG2 avg2_no_rnd
-#define AVG4 avg4_no_rnd
-#define STORE(l, b) stq(l, b)
-#include "pixops.h"
-#undef PIXOPNAME
-#undef BTYPE
-#undef AVG2
-#undef AVG4
-#undef STORE
+#define OP_X2(LOAD, STORE, INCR)				\
+    do {							\
+	uint64_t pix1, pix2;					\
+								\
+	pix1 = LOAD(pixels);					\
+	pix2 = pix1 >> 8 | ((uint64_t) pixels[8] << 56);	\
+	STORE(AVG2(pix1, pix2), block);				\
+	pixels += line_size;					\
+	block += INCR;						\
+    } while (--h)
 
-/* The following functions are untested.  */
-#if 0
+#define OP_Y2(LOAD, STORE, INCR)		\
+    do {					\
+	uint64_t pix = LOAD(pixels);		\
+	do {					\
+	    uint64_t next_pix;			\
+						\
+	    pixels += line_size;		\
+	    next_pix = LOAD(pixels);		\
+	    STORE(AVG2(pix, next_pix), block);	\
+	    block += INCR;			\
+	    pix = next_pix;			\
+	} while (--h);				\
+    } while (0)
+
+#define OP_XY2(LOAD, STORE, INCR)					\
+    do {								\
+	uint64_t pix1 = LOAD(pixels);					\
+	uint64_t pix2 = pix1 >> 8 | ((uint64_t) pixels[8] << 56);	\
+									\
+	do {								\
+	    uint64_t next_pix1, next_pix2;				\
+									\
+	    pixels += line_size;					\
+	    next_pix1 = LOAD(pixels);					\
+	    next_pix2 = next_pix1 >> 8 | ((uint64_t) pixels[8] << 56);	\
+									\
+	    STORE(AVG4(pix1, pix2, next_pix1, next_pix2), block);	\
+									\
+	    block += INCR;						\
+	    pix1 = next_pix1;						\
+	    pix2 = next_pix2;						\
+	} while (--h);							\
+    } while (0)
 
-#define PIXOPNAME(suffix) avg ## suffix
-#define BTYPE UINT8
+#define MAKE_OP(BTYPE, OPNAME, SUFF, OPKIND, STORE, INCR)		\
+static void OPNAME ## _pixels ## SUFF ## _axp(BTYPE *block,		\
+					      const uint8_t *pixels,	\
+					      int line_size, int h)	\
+{									\
+    if ((size_t) pixels & 0x7) {					\
+	OPKIND(uldq, STORE, INCR);					\
+    } else {								\
+	OPKIND(ldq, STORE, INCR);					\
+    }									\
+}
+
+#define PIXOP(BTYPE, OPNAME, STORE, INCR)		\
+    MAKE_OP(BTYPE, OPNAME, ,	 OP,	 STORE, INCR);	\
+    MAKE_OP(BTYPE, OPNAME, _x2,	 OP_X2,	 STORE, INCR);	\
+    MAKE_OP(BTYPE, OPNAME, _y2,	 OP_Y2,	 STORE, INCR);	\
+    MAKE_OP(BTYPE, OPNAME, _xy2, OP_XY2, STORE, INCR);
+
+/* Rounding primitives.  */
 #define AVG2 avg2
 #define AVG4 avg4
+#define STORE(l, b) stq(l, b)
+PIXOP(uint8_t, put, STORE, line_size);
+
+#undef STORE
 #define STORE(l, b) stq(AVG2(l, ldq(b)), b);
-#include "pixops.h"
-#undef PIXOPNAME
-#undef BTYPE
+PIXOP(uint8_t, avg, STORE, line_size);
+
+/* Not rounding primitives.  */
 #undef AVG2
 #undef AVG4
 #undef STORE
-
-#define PIXOPNAME(suffix) avg_no_rnd ## suffix
-#define BTYPE UINT8
 #define AVG2 avg2_no_rnd
 #define AVG4 avg4_no_rnd
-#define STORE(l, b) stq(AVG2(l, ldq(b)), b);
-#include "pixops.h"
-#undef PIXOPNAME
-#undef BTYPE
-#undef AVG2
-#undef AVG4
-#undef STORE
+#define STORE(l, b) stq(l, b)
+PIXOP(uint8_t, put_no_rnd, STORE, line_size);
 
-#define PIXOPNAME(suffix) sub ## suffix
-#define BTYPE DCTELEM
-#define AVG2 avg2
-#define AVG4 avg4
-#define STORE(l, block) do {		\
-    UINT64 xxx = l;			\
-    (block)[0] -= (xxx >>  0) & 0xff;	\
-    (block)[1] -= (xxx >>  8) & 0xff;	\
-    (block)[2] -= (xxx >> 16) & 0xff;	\
-    (block)[3] -= (xxx >> 24) & 0xff;	\
-    (block)[4] -= (xxx >> 32) & 0xff;	\
-    (block)[5] -= (xxx >> 40) & 0xff;	\
-    (block)[6] -= (xxx >> 48) & 0xff;	\
-    (block)[7] -= (xxx >> 56) & 0xff;	\
-} while (0)
-#include "pixops.h"
-#undef PIXOPNAME
-#undef BTYPE
-#undef AVG2
-#undef AVG4
 #undef STORE
-
-#endif
+#define STORE(l, b) stq(AVG2(l, ldq(b)), b);
+PIXOP(uint8_t, avg_no_rnd, STORE, line_size);
 
 void dsputil_init_alpha(void)
 {
@@ -244,6 +249,16 @@ void dsputil_init_alpha(void)
     put_no_rnd_pixels_tab[2] = put_no_rnd_pixels_y2_axp;
     put_no_rnd_pixels_tab[3] = put_no_rnd_pixels_xy2_axp;
 
+    avg_pixels_tab[0] = avg_pixels_axp;
+    avg_pixels_tab[1] = avg_pixels_x2_axp;
+    avg_pixels_tab[2] = avg_pixels_y2_axp;
+    avg_pixels_tab[3] = avg_pixels_xy2_axp;
+
+    avg_no_rnd_pixels_tab[0] = avg_no_rnd_pixels_axp;
+    avg_no_rnd_pixels_tab[1] = avg_no_rnd_pixels_x2_axp;
+    avg_no_rnd_pixels_tab[2] = avg_no_rnd_pixels_y2_axp;
+    avg_no_rnd_pixels_tab[3] = avg_no_rnd_pixels_xy2_axp;
+
     /* amask clears all bits that correspond to present features.  */
     if (amask(AMASK_MVI) == 0) {
         put_pixels_clamped = put_pixels_clamped_mvi_asm;