swscale: K&R formatting cosmetics for PowerPC code (part II/II)
authorDiego Biurrun <diego@biurrun.de>
Tue, 21 Feb 2012 18:59:38 +0000 (19:59 +0100)
committerDiego Biurrun <diego@biurrun.de>
Fri, 2 Mar 2012 01:16:40 +0000 (02:16 +0100)
libswscale/ppc/yuv2rgb_altivec.c

index 73c02e9..523d996 100644 (file)
  */
 
 /*
-Convert I420 YV12 to RGB in various formats,
-  it rejects images that are not in 420 formats,
-  it rejects images that don't have widths of multiples of 16,
-  it rejects images that don't have heights of multiples of 2.
-Reject defers to C simulation code.
-
-Lots of optimizations to be done here.
-
-1. Need to fix saturation code. I just couldn't get it to fly with packs
  and adds, so we currently use max/min to clip.
-
-2. The inefficient use of chroma loading needs a bit of brushing up.
-
-3. Analysis of pipeline stalls needs to be done. Use shark to identify
  pipeline stalls.
-
-
-MODIFIED to calculate coeffs from currently selected color space.
-MODIFIED core to be a macro where you specify the output format.
-ADDED UYVY conversion which is never called due to some thing in swscale.
-CORRECTED algorithim selection to be strict on input formats.
-ADDED runtime detection of AltiVec.
-
-ADDED altivec_yuv2packedX vertical scl + RGB converter
-
-March 27,2004
-PERFORMANCE ANALYSIS
-
-The C version uses 25% of the processor or ~250Mips for D1 video rawvideo
-used as test.
-The AltiVec version uses 10% of the processor or ~100Mips for D1 video
-same sequence.
-
-720 * 480 * 30  ~10MPS
-
-so we have roughly 10 clocks per pixel. This is too high, something has
-to be wrong.
-
-OPTIMIZED clip codes to utilize vec_max and vec_packs removing the
-need for vec_min.
-
-OPTIMIZED DST OUTPUT cache/DMA controls. We are pretty much guaranteed to have
-the input video frame, it was just decompressed so it probably resides in L1
-caches. However, we are creating the output video stream. This needs to use the
-DSTST instruction to optimize for the cache. We couple this with the fact that
-we are not going to be visiting the input buffer again so we mark it Least
-Recently Used. This shaves 25% of the processor cycles off.
-
-Now memcpy is the largest mips consumer in the system, probably due
-to the inefficient X11 stuff.
-
-GL libraries seem to be very slow on this machine 1.33Ghz PB running
-Jaguar, this is not the case for my 1Ghz PB.  I thought it might be
-a versioning issue, however I have libGL.1.2.dylib for both
-machines. (We need to figure this out now.)
-
-GL2 libraries work now with patch for RGB32.
-
-NOTE: quartz vo driver ARGB32_to_RGB24 consumes 30% of the processor.
-
-Integrated luma prescaling adjustment for saturation/contrast/brightness
-adjustment.
-*/
+ * Convert I420 YV12 to RGB in various formats,
* it rejects images that are not in 420 formats,
* it rejects images that don't have widths of multiples of 16,
* it rejects images that don't have heights of multiples of 2.
+ * Reject defers to C simulation code.
+ *
+ * Lots of optimizations to be done here.
+ *
+ * 1. Need to fix saturation code. I just couldn't get it to fly with packs
* and adds, so we currently use max/min to clip.
+ *
+ * 2. The inefficient use of chroma loading needs a bit of brushing up.
+ *
+ * 3. Analysis of pipeline stalls needs to be done. Use shark to identify
* pipeline stalls.
+ *
+ *
+ * MODIFIED to calculate coeffs from currently selected color space.
+ * MODIFIED core to be a macro where you specify the output format.
+ * ADDED UYVY conversion which is never called due to some thing in swscale.
+ * CORRECTED algorithim selection to be strict on input formats.
+ * ADDED runtime detection of AltiVec.
+ *
+ * ADDED altivec_yuv2packedX vertical scl + RGB converter
+ *
+ * March 27,2004
+ * PERFORMANCE ANALYSIS
+ *
+ * The C version uses 25% of the processor or ~250Mips for D1 video rawvideo
+ * used as test.
+ * The AltiVec version uses 10% of the processor or ~100Mips for D1 video
+ * same sequence.
+ *
+ * 720 * 480 * 30  ~10MPS
+ *
+ * so we have roughly 10 clocks per pixel. This is too high, something has
+ * to be wrong.
+ *
+ * OPTIMIZED clip codes to utilize vec_max and vec_packs removing the
+ * need for vec_min.
+ *
+ * OPTIMIZED DST OUTPUT cache/DMA controls. We are pretty much guaranteed to
+ * have the input video frame, it was just decompressed so it probably resides
+ * in L1 caches. However, we are creating the output video stream. This needs
+ * to use the DSTST instruction to optimize for the cache. We couple this with
+ * the fact that we are not going to be visiting the input buffer again so we
+ * mark it Least Recently Used. This shaves 25% of the processor cycles off.
+ *
+ * Now memcpy is the largest mips consumer in the system, probably due
+ * to the inefficient X11 stuff.
+ *
+ * GL libraries seem to be very slow on this machine 1.33Ghz PB running
+ * Jaguar, this is not the case for my 1Ghz PB.  I thought it might be
+ * a versioning issue, however I have libGL.1.2.dylib for both
+ * machines. (We need to figure this out now.)
+ *
+ * GL2 libraries work now with patch for RGB32.
+ *
+ * NOTE: quartz vo driver ARGB32_to_RGB24 consumes 30% of the processor.
+ *
+ * Integrated luma prescaling adjustment for saturation/contrast/brightness
+ * adjustment.
+ */
 
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include <inttypes.h>
 #include <assert.h>
+
 #include "config.h"
 #include "libswscale/rgb2rgb.h"
 #include "libswscale/swscale.h"
@@ -103,456 +104,451 @@ adjustment.
 typedef unsigned char ubyte;
 typedef signed char   sbyte;
 
-
 /* RGB interleaver, 16 planar pels 8-bit samples per channel in
-   homogeneous vector registers x0,x1,x2 are interleaved with the
-   following technique:
-
-      o0 = vec_mergeh (x0,x1);
-      o1 = vec_perm (o0, x2, perm_rgb_0);
-      o2 = vec_perm (o0, x2, perm_rgb_1);
-      o3 = vec_mergel (x0,x1);
-      o4 = vec_perm (o3,o2,perm_rgb_2);
-      o5 = vec_perm (o3,o2,perm_rgb_3);
-
-  perm_rgb_0:   o0(RG).h v1(B) --> o1*
-              0   1  2   3   4
-             rgbr|gbrg|brgb|rgbr
-             0010 0100 1001 0010
-             0102 3145 2673 894A
-
-  perm_rgb_1:   o0(RG).h v1(B) --> o2
-              0   1  2   3   4
-             gbrg|brgb|bbbb|bbbb
-             0100 1001 1111 1111
-             B5CD 6EF7 89AB CDEF
-
-  perm_rgb_2:   o3(RG).l o2(rgbB.l) --> o4*
-              0   1  2   3   4
-             gbrg|brgb|rgbr|gbrg
-             1111 1111 0010 0100
-             89AB CDEF 0182 3945
-
-  perm_rgb_2:   o3(RG).l o2(rgbB.l) ---> o5*
-              0   1  2   3   4
-             brgb|rgbr|gbrg|brgb
-             1001 0010 0100 1001
-             a67b 89cA BdCD eEFf
-
-*/
-static
-const vector unsigned char
-  perm_rgb_0 = {0x00,0x01,0x10,0x02,0x03,0x11,0x04,0x05,
-                0x12,0x06,0x07,0x13,0x08,0x09,0x14,0x0a},
-  perm_rgb_1 = {0x0b,0x15,0x0c,0x0d,0x16,0x0e,0x0f,0x17,
-                0x18,0x19,0x1a,0x1b,0x1c,0x1d,0x1e,0x1f},
-  perm_rgb_2 = {0x10,0x11,0x12,0x13,0x14,0x15,0x16,0x17,
-                0x00,0x01,0x18,0x02,0x03,0x19,0x04,0x05},
-  perm_rgb_3 = {0x1a,0x06,0x07,0x1b,0x08,0x09,0x1c,0x0a,
-                0x0b,0x1d,0x0c,0x0d,0x1e,0x0e,0x0f,0x1f};
-
-#define vec_merge3(x2,x1,x0,y0,y1,y2)       \
-do {                                        \
-    __typeof__(x0) o0,o2,o3;                \
-        o0 = vec_mergeh (x0,x1);            \
-        y0 = vec_perm (o0, x2, perm_rgb_0); \
-        o2 = vec_perm (o0, x2, perm_rgb_1); \
-        o3 = vec_mergel (x0,x1);            \
-        y1 = vec_perm (o3,o2,perm_rgb_2);   \
-        y2 = vec_perm (o3,o2,perm_rgb_3);   \
-} while(0)
-
-#define vec_mstbgr24(x0,x1,x2,ptr)      \
-do {                                    \
-    __typeof__(x0) _0,_1,_2;            \
-    vec_merge3 (x0,x1,x2,_0,_1,_2);     \
-    vec_st (_0, 0, ptr++);              \
-    vec_st (_1, 0, ptr++);              \
-    vec_st (_2, 0, ptr++);              \
-}  while (0)
-
-#define vec_mstrgb24(x0,x1,x2,ptr)      \
-do {                                    \
-    __typeof__(x0) _0,_1,_2;            \
-    vec_merge3 (x2,x1,x0,_0,_1,_2);     \
-    vec_st (_0, 0, ptr++);              \
-    vec_st (_1, 0, ptr++);              \
-    vec_st (_2, 0, ptr++);              \
-}  while (0)
+ * homogeneous vector registers x0,x1,x2 are interleaved with the
+ * following technique:
+ *
+ *    o0 = vec_mergeh(x0, x1);
+ *    o1 = vec_perm(o0, x2, perm_rgb_0);
+ *    o2 = vec_perm(o0, x2, perm_rgb_1);
+ *    o3 = vec_mergel(x0, x1);
+ *    o4 = vec_perm(o3, o2, perm_rgb_2);
+ *    o5 = vec_perm(o3, o2, perm_rgb_3);
+ *
+ * perm_rgb_0:   o0(RG).h v1(B) --> o1*
+ *            0   1  2   3   4
+ *           rgbr|gbrg|brgb|rgbr
+ *           0010 0100 1001 0010
+ *           0102 3145 2673 894A
+ *
+ * perm_rgb_1:   o0(RG).h v1(B) --> o2
+ *            0   1  2   3   4
+ *           gbrg|brgb|bbbb|bbbb
+ *           0100 1001 1111 1111
+ *           B5CD 6EF7 89AB CDEF
+ *
+ * perm_rgb_2:   o3(RG).l o2(rgbB.l) --> o4*
+ *            0   1  2   3   4
+ *           gbrg|brgb|rgbr|gbrg
+ *           1111 1111 0010 0100
+ *           89AB CDEF 0182 3945
+ *
+ * perm_rgb_2:   o3(RG).l o2(rgbB.l) ---> o5*
+ *            0   1  2   3   4
+ *           brgb|rgbr|gbrg|brgb
+ *           1001 0010 0100 1001
+ *           a67b 89cA BdCD eEFf
+ *
+ */
+static const vector unsigned char
+    perm_rgb_0 = { 0x00, 0x01, 0x10, 0x02, 0x03, 0x11, 0x04, 0x05,
+                   0x12, 0x06, 0x07, 0x13, 0x08, 0x09, 0x14, 0x0a },
+    perm_rgb_1 = { 0x0b, 0x15, 0x0c, 0x0d, 0x16, 0x0e, 0x0f, 0x17,
+                   0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f },
+    perm_rgb_2 = { 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
+                   0x00, 0x01, 0x18, 0x02, 0x03, 0x19, 0x04, 0x05 },
+    perm_rgb_3 = { 0x1a, 0x06, 0x07, 0x1b, 0x08, 0x09, 0x1c, 0x0a,
+                   0x0b, 0x1d, 0x0c, 0x0d, 0x1e, 0x0e, 0x0f, 0x1f };
+
+#define vec_merge3(x2, x1, x0, y0, y1, y2)     \
+    do {                                       \
+        __typeof__(x0) o0, o2, o3;             \
+        o0 = vec_mergeh(x0, x1);               \
+        y0 = vec_perm(o0, x2, perm_rgb_0);     \
+        o2 = vec_perm(o0, x2, perm_rgb_1);     \
+        o3 = vec_mergel(x0, x1);               \
+        y1 = vec_perm(o3, o2, perm_rgb_2);     \
+        y2 = vec_perm(o3, o2, perm_rgb_3);     \
+    } while (0)
+
+#define vec_mstbgr24(x0, x1, x2, ptr)          \
+    do {                                       \
+        __typeof__(x0) _0, _1, _2;             \
+        vec_merge3(x0, x1, x2, _0, _1, _2);    \
+        vec_st(_0, 0, ptr++);                  \
+        vec_st(_1, 0, ptr++);                  \
+        vec_st(_2, 0, ptr++);                  \
+    } while (0)
+
+#define vec_mstrgb24(x0, x1, x2, ptr)          \
+    do {                                       \
+        __typeof__(x0) _0, _1, _2;             \
+        vec_merge3(x2, x1, x0, _0, _1, _2);    \
+        vec_st(_0, 0, ptr++);                  \
+        vec_st(_1, 0, ptr++);                  \
+        vec_st(_2, 0, ptr++);                  \
+    } while (0)
 
 /* pack the pixels in rgb0 format
-   msb R
-   lsb 0
-*/
-#define vec_mstrgb32(T,x0,x1,x2,x3,ptr)                                       \
-do {                                                                          \
-    T _0,_1,_2,_3;                                                            \
-    _0 = vec_mergeh (x0,x1);                                                  \
-    _1 = vec_mergeh (x2,x3);                                                  \
-    _2 = (T)vec_mergeh ((vector unsigned short)_0,(vector unsigned short)_1); \
-    _3 = (T)vec_mergel ((vector unsigned short)_0,(vector unsigned short)_1); \
-    vec_st (_2, 0*16, (T *)ptr);                                              \
-    vec_st (_3, 1*16, (T *)ptr);                                              \
-    _0 = vec_mergel (x0,x1);                                                  \
-    _1 = vec_mergel (x2,x3);                                                  \
-    _2 = (T)vec_mergeh ((vector unsigned short)_0,(vector unsigned short)_1); \
-    _3 = (T)vec_mergel ((vector unsigned short)_0,(vector unsigned short)_1); \
-    vec_st (_2, 2*16, (T *)ptr);                                              \
-    vec_st (_3, 3*16, (T *)ptr);                                              \
-    ptr += 4;                                                                 \
-}  while (0)
+ * msb R
+ * lsb 0
+ */
+#define vec_mstrgb32(T, x0, x1, x2, x3, ptr)                            \
+    do {                                                                \
+        T _0, _1, _2, _3;                                               \
+        _0 = vec_mergeh(x0, x1);                                        \
+        _1 = vec_mergeh(x2, x3);                                        \
+        _2 = (T) vec_mergeh((vector unsigned short) _0,                 \
+                            (vector unsigned short) _1);                \
+        _3 = (T) vec_mergel((vector unsigned short) _0,                 \
+                            (vector unsigned short) _1);                \
+        vec_st(_2, 0 * 16, (T *) ptr);                                  \
+        vec_st(_3, 1 * 16, (T *) ptr);                                  \
+        _0 = vec_mergel(x0, x1);                                        \
+        _1 = vec_mergel(x2, x3);                                        \
+        _2 = (T) vec_mergeh((vector unsigned short) _0,                 \
+                            (vector unsigned short) _1);                \
+        _3 = (T) vec_mergel((vector unsigned short) _0,                 \
+                            (vector unsigned short) _1);                \
+        vec_st(_2, 2 * 16, (T *) ptr);                                  \
+        vec_st(_3, 3 * 16, (T *) ptr);                                  \
+        ptr += 4;                                                       \
+    } while (0)
 
 /*
+ * 1     0       1.4021   | | Y |
+ * 1    -0.3441 -0.7142   |x| Cb|
+ * 1     1.7718  0        | | Cr|
+ *
+ *
+ * Y:      [-128 127]
+ * Cb/Cr : [-128 127]
+ *
+ * typical YUV conversion works on Y: 0-255 this version has been
+ * optimized for JPEG decoding.
+ */
 
-  | 1     0       1.4021   | | Y |
-  | 1    -0.3441 -0.7142   |x| Cb|
-  | 1     1.7718  0        | | Cr|
-
-
-  Y:      [-128 127]
-  Cb/Cr : [-128 127]
-
-  typical yuv conversion work on Y: 0-255 this version has been optimized for jpeg decode.
-
-*/
-
-
-
-
-#define vec_unh(x) \
-    (vector signed short) \
-        vec_perm(x,(__typeof__(x)){0}, \
-                 ((vector unsigned char){0x10,0x00,0x10,0x01,0x10,0x02,0x10,0x03,\
-                                         0x10,0x04,0x10,0x05,0x10,0x06,0x10,0x07}))
-#define vec_unl(x) \
-    (vector signed short) \
-        vec_perm(x,(__typeof__(x)){0}, \
-                 ((vector unsigned char){0x10,0x08,0x10,0x09,0x10,0x0A,0x10,0x0B,\
-                                         0x10,0x0C,0x10,0x0D,0x10,0x0E,0x10,0x0F}))
-
-#define vec_clip_s16(x) \
-    vec_max (vec_min (x, ((vector signed short){235,235,235,235,235,235,235,235})), \
-                         ((vector signed short){ 16, 16, 16, 16, 16, 16, 16, 16}))
-
-#define vec_packclp(x,y) \
-    (vector unsigned char)vec_packs \
-        ((vector unsigned short)vec_max (x,((vector signed short) {0})), \
-         (vector unsigned short)vec_max (y,((vector signed short) {0})))
-
-//#define out_pixels(a,b,c,ptr) vec_mstrgb32(__typeof__(a),((__typeof__ (a)){255}),a,a,a,ptr)
-
-
-static inline void cvtyuvtoRGB (SwsContext *c,
-                                vector signed short Y, vector signed short U, vector signed short V,
-                                vector signed short *R, vector signed short *G, vector signed short *B)
+#define vec_unh(x)                                                      \
+    (vector signed short)                                               \
+        vec_perm(x, (__typeof__(x)) { 0 },                              \
+                 ((vector unsigned char) {                              \
+                     0x10, 0x00, 0x10, 0x01, 0x10, 0x02, 0x10, 0x03,    \
+                     0x10, 0x04, 0x10, 0x05, 0x10, 0x06, 0x10, 0x07 }))
+
+#define vec_unl(x)                                                      \
+    (vector signed short)                                               \
+        vec_perm(x, (__typeof__(x)) { 0 },                              \
+                 ((vector unsigned char) {                              \
+                     0x10, 0x08, 0x10, 0x09, 0x10, 0x0A, 0x10, 0x0B,    \
+                     0x10, 0x0C, 0x10, 0x0D, 0x10, 0x0E, 0x10, 0x0F }))
+
+#define vec_clip_s16(x)                                                 \
+    vec_max(vec_min(x, ((vector signed short) {                         \
+                    235, 235, 235, 235, 235, 235, 235, 235 })),         \
+            ((vector signed short) { 16, 16, 16, 16, 16, 16, 16, 16 }))
+
+#define vec_packclp(x, y)                                               \
+    (vector unsigned char)                                              \
+        vec_packs((vector unsigned short)                               \
+                      vec_max(x, ((vector signed short) { 0 })),        \
+                  (vector unsigned short)                               \
+                      vec_max(y, ((vector signed short) { 0 })))
+
+//#define out_pixels(a, b, c, ptr) vec_mstrgb32(__typeof__(a), ((__typeof__(a)) { 255 }), a, a, a, ptr)
+
+static inline void cvtyuvtoRGB(SwsContext *c, vector signed short Y,
+                               vector signed short U, vector signed short V,
+                               vector signed short *R, vector signed short *G,
+                               vector signed short *B)
 {
-    vector signed   short vx,ux,uvx;
+    vector signed short vx, ux, uvx;
 
-    Y = vec_mradds (Y, c->CY, c->OY);
-    U  = vec_sub (U,(vector signed short)
-                    vec_splat((vector signed short){128},0));
-    V  = vec_sub (V,(vector signed short)
-                    vec_splat((vector signed short){128},0));
+    Y = vec_mradds(Y, c->CY, c->OY);
+    U = vec_sub(U, (vector signed short)
+                       vec_splat((vector signed short) { 128 }, 0));
+    V = vec_sub(V, (vector signed short)
+                       vec_splat((vector signed short) { 128 }, 0));
 
-    //   ux  = (CBU*(u<<c->CSHIFT)+0x4000)>>15;
-    ux = vec_sl (U, c->CSHIFT);
-    *B = vec_mradds (ux, c->CBU, Y);
+    // ux  = (CBU * (u << c->CSHIFT) + 0x4000) >> 15;
+    ux = vec_sl(U, c->CSHIFT);
+    *B = vec_mradds(ux, c->CBU, Y);
 
-    // vx  = (CRV*(v<<c->CSHIFT)+0x4000)>>15;
-    vx = vec_sl (V, c->CSHIFT);
-    *R = vec_mradds (vx, c->CRV, Y);
+    // vx  = (CRV * (v << c->CSHIFT) + 0x4000) >> 15;
+    vx = vec_sl(V, c->CSHIFT);
+    *R = vec_mradds(vx, c->CRV, Y);
 
-    // uvx = ((CGU*u) + (CGV*v))>>15;
-    uvx = vec_mradds (U, c->CGU, Y);
-    *G  = vec_mradds (V, c->CGV, uvx);
+    // uvx = ((CGU * u) + (CGV * v)) >> 15;
+    uvx = vec_mradds(U, c->CGU, Y);
+    *G  = vec_mradds(V, c->CGV, uvx);
 }
 
-
 /*
-  ------------------------------------------------------------------------------
-  CS converters
-  ------------------------------------------------------------------------------
-*/
-
+ * ------------------------------------------------------------------------------
+ * CS converters
+ * ------------------------------------------------------------------------------
+ */
 
-#define DEFCSP420_CVT(name,out_pixels)                                  \
-static int altivec_##name (SwsContext *c,                               \
-                           const unsigned char **in, int *instrides,    \
-                           int srcSliceY,        int srcSliceH,         \
-                           unsigned char **oplanes, int *outstrides)    \
-{                                                                       \
-    int w = c->srcW;                                                    \
-    int h = srcSliceH;                                                  \
-    int i,j;                                                            \
-    int instrides_scl[3];                                               \
-    vector unsigned char y0,y1;                                         \
-                                                                        \
-    vector signed char  u,v;                                            \
-                                                                        \
-    vector signed short Y0,Y1,Y2,Y3;                                    \
-    vector signed short U,V;                                            \
-    vector signed short vx,ux,uvx;                                      \
-    vector signed short vx0,ux0,uvx0;                                   \
-    vector signed short vx1,ux1,uvx1;                                   \
-    vector signed short R0,G0,B0;                                       \
-    vector signed short R1,G1,B1;                                       \
-    vector unsigned char R,G,B;                                         \
-                                                                        \
-    vector unsigned char *y1ivP, *y2ivP, *uivP, *vivP;                  \
-    vector unsigned char align_perm;                                    \
-                                                                        \
-    vector signed short                                                 \
-        lCY  = c->CY,                                                   \
-        lOY  = c->OY,                                                   \
-        lCRV = c->CRV,                                                  \
-        lCBU = c->CBU,                                                  \
-        lCGU = c->CGU,                                                  \
-        lCGV = c->CGV;                                                  \
-                                                                        \
-    vector unsigned short lCSHIFT = c->CSHIFT;                          \
-                                                                        \
-    const ubyte *y1i   = in[0];                                         \
-    const ubyte *y2i   = in[0]+instrides[0];                            \
-    const ubyte *ui    = in[1];                                         \
-    const ubyte *vi    = in[2];                                         \
-                                                                        \
-    vector unsigned char *oute                                          \
-        = (vector unsigned char *)                                      \
-            (oplanes[0]+srcSliceY*outstrides[0]);                       \
-    vector unsigned char *outo                                          \
-        = (vector unsigned char *)                                      \
-            (oplanes[0]+srcSliceY*outstrides[0]+outstrides[0]);         \
-                                                                        \
-                                                                        \
-    instrides_scl[0] = instrides[0]*2-w;  /* the loop moves y{1,2}i by w */ \
-    instrides_scl[1] = instrides[1]-w/2;  /* the loop moves ui by w/2 */    \
-    instrides_scl[2] = instrides[2]-w/2;  /* the loop moves vi by w/2 */    \
-                                                                        \
-                                                                        \
-    for (i=0;i<h/2;i++) {                                               \
-        vec_dstst (outo, (0x02000002|(((w*3+32)/32)<<16)), 0);          \
-        vec_dstst (oute, (0x02000002|(((w*3+32)/32)<<16)), 1);          \
-                                                                        \
-        for (j=0;j<w/16;j++) {                                          \
-                                                                        \
-            y1ivP = (vector unsigned char *)y1i;                        \
-            y2ivP = (vector unsigned char *)y2i;                        \
-            uivP  = (vector unsigned char *)ui;                         \
-            vivP  = (vector unsigned char *)vi;                         \
-                                                                        \
-            align_perm = vec_lvsl (0, y1i);                             \
-            y0 = (vector unsigned char)                                 \
-                 vec_perm (y1ivP[0], y1ivP[1], align_perm);             \
-                                                                        \
-            align_perm = vec_lvsl (0, y2i);                             \
-            y1 = (vector unsigned char)                                 \
-                 vec_perm (y2ivP[0], y2ivP[1], align_perm);             \
-                                                                        \
-            align_perm = vec_lvsl (0, ui);                              \
-            u = (vector signed char)                                    \
-                vec_perm (uivP[0], uivP[1], align_perm);                \
-                                                                        \
-            align_perm = vec_lvsl (0, vi);                              \
-            v = (vector signed char)                                    \
-                vec_perm (vivP[0], vivP[1], align_perm);                \
-                                                                        \
-            u  = (vector signed char)                                   \
-                 vec_sub (u,(vector signed char)                        \
-                          vec_splat((vector signed char){128},0));      \
-            v  = (vector signed char)                                   \
-                 vec_sub (v,(vector signed char)                        \
-                          vec_splat((vector signed char){128},0));      \
-                                                                        \
-            U  = vec_unpackh (u);                                       \
-            V  = vec_unpackh (v);                                       \
-                                                                        \
-                                                                        \
-            Y0 = vec_unh (y0);                                          \
-            Y1 = vec_unl (y0);                                          \
-            Y2 = vec_unh (y1);                                          \
-            Y3 = vec_unl (y1);                                          \
-                                                                        \
-            Y0 = vec_mradds (Y0, lCY, lOY);                             \
-            Y1 = vec_mradds (Y1, lCY, lOY);                             \
-            Y2 = vec_mradds (Y2, lCY, lOY);                             \
-            Y3 = vec_mradds (Y3, lCY, lOY);                             \
-                                                                        \
-            /*   ux  = (CBU*(u<<CSHIFT)+0x4000)>>15 */                  \
-            ux = vec_sl (U, lCSHIFT);                                   \
-            ux = vec_mradds (ux, lCBU, (vector signed short){0});       \
-            ux0  = vec_mergeh (ux,ux);                                  \
-            ux1  = vec_mergel (ux,ux);                                  \
-                                                                        \
-            /* vx  = (CRV*(v<<CSHIFT)+0x4000)>>15;        */            \
-            vx = vec_sl (V, lCSHIFT);                                   \
-            vx = vec_mradds (vx, lCRV, (vector signed short){0});       \
-            vx0  = vec_mergeh (vx,vx);                                  \
-            vx1  = vec_mergel (vx,vx);                                  \
-                                                                        \
-            /* uvx = ((CGU*u) + (CGV*v))>>15 */                         \
-            uvx = vec_mradds (U, lCGU, (vector signed short){0});       \
-            uvx = vec_mradds (V, lCGV, uvx);                            \
-            uvx0 = vec_mergeh (uvx,uvx);                                \
-            uvx1 = vec_mergel (uvx,uvx);                                \
-                                                                        \
-            R0 = vec_add (Y0,vx0);                                      \
-            G0 = vec_add (Y0,uvx0);                                     \
-            B0 = vec_add (Y0,ux0);                                      \
-            R1 = vec_add (Y1,vx1);                                      \
-            G1 = vec_add (Y1,uvx1);                                     \
-            B1 = vec_add (Y1,ux1);                                      \
-                                                                        \
-            R  = vec_packclp (R0,R1);                                   \
-            G  = vec_packclp (G0,G1);                                   \
-            B  = vec_packclp (B0,B1);                                   \
-                                                                        \
-            out_pixels(R,G,B,oute);                                     \
-                                                                        \
-            R0 = vec_add (Y2,vx0);                                      \
-            G0 = vec_add (Y2,uvx0);                                     \
-            B0 = vec_add (Y2,ux0);                                      \
-            R1 = vec_add (Y3,vx1);                                      \
-            G1 = vec_add (Y3,uvx1);                                     \
-            B1 = vec_add (Y3,ux1);                                      \
-            R  = vec_packclp (R0,R1);                                   \
-            G  = vec_packclp (G0,G1);                                   \
-            B  = vec_packclp (B0,B1);                                   \
-                                                                        \
-                                                                        \
-            out_pixels(R,G,B,outo);                                     \
-                                                                        \
-            y1i  += 16;                                                 \
-            y2i  += 16;                                                 \
-            ui   += 8;                                                  \
-            vi   += 8;                                                  \
-                                                                        \
-        }                                                               \
-                                                                        \
-        outo  += (outstrides[0])>>4;                                    \
-        oute  += (outstrides[0])>>4;                                    \
-                                                                        \
-        ui    += instrides_scl[1];                                      \
-        vi    += instrides_scl[2];                                      \
-        y1i   += instrides_scl[0];                                      \
-        y2i   += instrides_scl[0];                                      \
-    }                                                                   \
-    return srcSliceH;                                                   \
+#define DEFCSP420_CVT(name, out_pixels)                                       \
+static int altivec_ ## name(SwsContext *c, const unsigned char **in,          \
+                            int *instrides, int srcSliceY, int srcSliceH,     \
+                            unsigned char **oplanes, int *outstrides)         \
+{                                                                             \
+    int w = c->srcW;                                                          \
+    int h = srcSliceH;                                                        \
+    int i, j;                                                                 \
+    int instrides_scl[3];                                                     \
+    vector unsigned char y0, y1;                                              \
+                                                                              \
+    vector signed char u, v;                                                  \
+                                                                              \
+    vector signed short Y0, Y1, Y2, Y3;                                       \
+    vector signed short U, V;                                                 \
+    vector signed short vx, ux, uvx;                                          \
+    vector signed short vx0, ux0, uvx0;                                       \
+    vector signed short vx1, ux1, uvx1;                                       \
+    vector signed short R0, G0, B0;                                           \
+    vector signed short R1, G1, B1;                                           \
+    vector unsigned char R, G, B;                                             \
+                                                                              \
+    vector unsigned char *y1ivP, *y2ivP, *uivP, *vivP;                        \
+    vector unsigned char align_perm;                                          \
+                                                                              \
+    vector signed short lCY       = c->CY;                                    \
+    vector signed short lOY       = c->OY;                                    \
+    vector signed short lCRV      = c->CRV;                                   \
+    vector signed short lCBU      = c->CBU;                                   \
+    vector signed short lCGU      = c->CGU;                                   \
+    vector signed short lCGV      = c->CGV;                                   \
+    vector unsigned short lCSHIFT = c->CSHIFT;                                \
+                                                                              \
+    const ubyte *y1i = in[0];                                                 \
+    const ubyte *y2i = in[0] + instrides[0];                                  \
+    const ubyte *ui  = in[1];                                                 \
+    const ubyte *vi  = in[2];                                                 \
+                                                                              \
+    vector unsigned char *oute =                                              \
+        (vector unsigned char *)                                              \
+            (oplanes[0] + srcSliceY * outstrides[0]);                         \
+    vector unsigned char *outo =                                              \
+        (vector unsigned char *)                                              \
+            (oplanes[0] + srcSliceY * outstrides[0] + outstrides[0]);         \
+                                                                              \
+    /* loop moves y{1, 2}i by w */                                            \
+    instrides_scl[0] = instrides[0] * 2 - w;                                  \
+    /* loop moves ui by w / 2 */                                              \
+    instrides_scl[1] = instrides[1] - w / 2;                                  \
+    /* loop moves vi by w / 2 */                                              \
+    instrides_scl[2] = instrides[2] - w / 2;                                  \
+                                                                              \
+    for (i = 0; i < h / 2; i++) {                                             \
+        vec_dstst(outo, (0x02000002 | (((w * 3 + 32) / 32) << 16)), 0);       \
+        vec_dstst(oute, (0x02000002 | (((w * 3 + 32) / 32) << 16)), 1);       \
+                                                                              \
+        for (j = 0; j < w / 16; j++) {                                        \
+            y1ivP = (vector unsigned char *) y1i;                             \
+            y2ivP = (vector unsigned char *) y2i;                             \
+            uivP  = (vector unsigned char *) ui;                              \
+            vivP  = (vector unsigned char *) vi;                              \
+                                                                              \
+            align_perm = vec_lvsl(0, y1i);                                    \
+            y0 = (vector unsigned char)                                       \
+                     vec_perm(y1ivP[0], y1ivP[1], align_perm);                \
+                                                                              \
+            align_perm = vec_lvsl(0, y2i);                                    \
+            y1 = (vector unsigned char)                                       \
+                     vec_perm(y2ivP[0], y2ivP[1], align_perm);                \
+                                                                              \
+            align_perm = vec_lvsl(0, ui);                                     \
+            u = (vector signed char)                                          \
+                    vec_perm(uivP[0], uivP[1], align_perm);                   \
+                                                                              \
+            align_perm = vec_lvsl(0, vi);                                     \
+            v = (vector signed char)                                          \
+                    vec_perm(vivP[0], vivP[1], align_perm);                   \
+                                                                              \
+            u = (vector signed char)                                          \
+                    vec_sub(u,                                                \
+                            (vector signed char)                              \
+                                vec_splat((vector signed char) { 128 }, 0));  \
+            v = (vector signed char)                                          \
+                    vec_sub(v,                                                \
+                            (vector signed char)                              \
+                                vec_splat((vector signed char) { 128 }, 0));  \
+                                                                              \
+            U = vec_unpackh(u);                                               \
+            V = vec_unpackh(v);                                               \
+                                                                              \
+            Y0 = vec_unh(y0);                                                 \
+            Y1 = vec_unl(y0);                                                 \
+            Y2 = vec_unh(y1);                                                 \
+            Y3 = vec_unl(y1);                                                 \
+                                                                              \
+            Y0 = vec_mradds(Y0, lCY, lOY);                                    \
+            Y1 = vec_mradds(Y1, lCY, lOY);                                    \
+            Y2 = vec_mradds(Y2, lCY, lOY);                                    \
+            Y3 = vec_mradds(Y3, lCY, lOY);                                    \
+                                                                              \
+            /* ux  = (CBU * (u << CSHIFT) + 0x4000) >> 15 */                  \
+            ux  = vec_sl(U, lCSHIFT);                                         \
+            ux  = vec_mradds(ux, lCBU, (vector signed short) { 0 });          \
+            ux0 = vec_mergeh(ux, ux);                                         \
+            ux1 = vec_mergel(ux, ux);                                         \
+                                                                              \
+            /* vx  = (CRV * (v << CSHIFT) + 0x4000) >> 15; */                 \
+            vx  = vec_sl(V, lCSHIFT);                                         \
+            vx  = vec_mradds(vx, lCRV, (vector signed short) { 0 });          \
+            vx0 = vec_mergeh(vx, vx);                                         \
+            vx1 = vec_mergel(vx, vx);                                         \
+                                                                              \
+            /* uvx = ((CGU * u) + (CGV * v)) >> 15 */                         \
+            uvx  = vec_mradds(U, lCGU, (vector signed short) { 0 });          \
+            uvx  = vec_mradds(V, lCGV, uvx);                                  \
+            uvx0 = vec_mergeh(uvx, uvx);                                      \
+            uvx1 = vec_mergel(uvx, uvx);                                      \
+                                                                              \
+            R0 = vec_add(Y0, vx0);                                            \
+            G0 = vec_add(Y0, uvx0);                                           \
+            B0 = vec_add(Y0, ux0);                                            \
+            R1 = vec_add(Y1, vx1);                                            \
+            G1 = vec_add(Y1, uvx1);                                           \
+            B1 = vec_add(Y1, ux1);                                            \
+                                                                              \
+            R = vec_packclp(R0, R1);                                          \
+            G = vec_packclp(G0, G1);                                          \
+            B = vec_packclp(B0, B1);                                          \
+                                                                              \
+            out_pixels(R, G, B, oute);                                        \
+                                                                              \
+            R0 = vec_add(Y2, vx0);                                            \
+            G0 = vec_add(Y2, uvx0);                                           \
+            B0 = vec_add(Y2, ux0);                                            \
+            R1 = vec_add(Y3, vx1);                                            \
+            G1 = vec_add(Y3, uvx1);                                           \
+            B1 = vec_add(Y3, ux1);                                            \
+            R  = vec_packclp(R0, R1);                                         \
+            G  = vec_packclp(G0, G1);                                         \
+            B  = vec_packclp(B0, B1);                                         \
+                                                                              \
+                                                                              \
+            out_pixels(R, G, B, outo);                                        \
+                                                                              \
+            y1i += 16;                                                        \
+            y2i += 16;                                                        \
+            ui  += 8;                                                         \
+            vi  += 8;                                                         \
+        }                                                                     \
+                                                                              \
+        outo += (outstrides[0]) >> 4;                                         \
+        oute += (outstrides[0]) >> 4;                                         \
+                                                                              \
+        ui  += instrides_scl[1];                                              \
+        vi  += instrides_scl[2];                                              \
+        y1i += instrides_scl[0];                                              \
+        y2i += instrides_scl[0];                                              \
+    }                                                                         \
+    return srcSliceH;                                                         \
 }
 
-
-#define out_abgr(a,b,c,ptr)  vec_mstrgb32(__typeof__(a),((__typeof__ (a)){255}),c,b,a,ptr)
-#define out_bgra(a,b,c,ptr)  vec_mstrgb32(__typeof__(a),c,b,a,((__typeof__ (a)){255}),ptr)
-#define out_rgba(a,b,c,ptr)  vec_mstrgb32(__typeof__(a),a,b,c,((__typeof__ (a)){255}),ptr)
-#define out_argb(a,b,c,ptr)  vec_mstrgb32(__typeof__(a),((__typeof__ (a)){255}),a,b,c,ptr)
-#define out_rgb24(a,b,c,ptr) vec_mstrgb24(a,b,c,ptr)
-#define out_bgr24(a,b,c,ptr) vec_mstbgr24(a,b,c,ptr)
-
-DEFCSP420_CVT (yuv2_abgr, out_abgr)
-DEFCSP420_CVT (yuv2_bgra, out_bgra)
-DEFCSP420_CVT (yuv2_rgba, out_rgba)
-DEFCSP420_CVT (yuv2_argb, out_argb)
-DEFCSP420_CVT (yuv2_rgb24,  out_rgb24)
-DEFCSP420_CVT (yuv2_bgr24,  out_bgr24)
-
+#define out_abgr(a, b, c, ptr)                                          \
+    vec_mstrgb32(__typeof__(a), ((__typeof__(a)) { 255 }), c, b, a, ptr)
+#define out_bgra(a, b, c, ptr)                                          \
+    vec_mstrgb32(__typeof__(a), c, b, a, ((__typeof__(a)) { 255 }), ptr)
+#define out_rgba(a, b, c, ptr)                                          \
+    vec_mstrgb32(__typeof__(a), a, b, c, ((__typeof__(a)) { 255 }), ptr)
+#define out_argb(a, b, c, ptr)                                          \
+    vec_mstrgb32(__typeof__(a), ((__typeof__(a)) { 255 }), a, b, c, ptr)
+#define out_rgb24(a, b, c, ptr) vec_mstrgb24(a, b, c, ptr)
+#define out_bgr24(a, b, c, ptr) vec_mstbgr24(a, b, c, ptr)
+
+DEFCSP420_CVT(yuv2_abgr,  out_abgr)
+DEFCSP420_CVT(yuv2_bgra,  out_bgra)
+DEFCSP420_CVT(yuv2_rgba,  out_rgba)
+DEFCSP420_CVT(yuv2_argb,  out_argb)
+DEFCSP420_CVT(yuv2_rgb24, out_rgb24)
+DEFCSP420_CVT(yuv2_bgr24, out_bgr24)
 
 // uyvy|uyvy|uyvy|uyvy
 // 0123 4567 89ab cdef
-static
-const vector unsigned char
-    demux_u = {0x10,0x00,0x10,0x00,
-               0x10,0x04,0x10,0x04,
-               0x10,0x08,0x10,0x08,
-               0x10,0x0c,0x10,0x0c},
-    demux_v = {0x10,0x02,0x10,0x02,
-               0x10,0x06,0x10,0x06,
-               0x10,0x0A,0x10,0x0A,
-               0x10,0x0E,0x10,0x0E},
-    demux_y = {0x10,0x01,0x10,0x03,
-               0x10,0x05,0x10,0x07,
-               0x10,0x09,0x10,0x0B,
-               0x10,0x0D,0x10,0x0F};
+static const vector unsigned char
+    demux_u = { 0x10, 0x00, 0x10, 0x00,
+                0x10, 0x04, 0x10, 0x04,
+                0x10, 0x08, 0x10, 0x08,
+                0x10, 0x0c, 0x10, 0x0c },
+    demux_v = { 0x10, 0x02, 0x10, 0x02,
+                0x10, 0x06, 0x10, 0x06,
+                0x10, 0x0A, 0x10, 0x0A,
+                0x10, 0x0E, 0x10, 0x0E },
+    demux_y = { 0x10, 0x01, 0x10, 0x03,
+                0x10, 0x05, 0x10, 0x07,
+                0x10, 0x09, 0x10, 0x0B,
+                0x10, 0x0D, 0x10, 0x0F };
 
 /*
-  this is so I can play live CCIR raw video
-*/
-static int altivec_uyvy_rgb32 (SwsContext *c,
-                               const unsigned char **in, int *instrides,
-                               int srcSliceY,        int srcSliceH,
-                               unsigned char **oplanes, int *outstrides)
+ * this is so I can play live CCIR raw video
+ */
+static int altivec_uyvy_rgb32(SwsContext *c, const unsigned char **in,
+                              int *instrides, int srcSliceY, int srcSliceH,
+                              unsigned char **oplanes, int *outstrides)
 {
     int w = c->srcW;
     int h = srcSliceH;
-    int i,j;
+    int i, j;
     vector unsigned char uyvy;
-    vector signed   short Y,U,V;
-    vector signed   short R0,G0,B0,R1,G1,B1;
-    vector unsigned char  R,G,B;
+    vector signed short Y, U, V;
+    vector signed short R0, G0, B0, R1, G1, B1;
+    vector unsigned char R, G, B;
     vector unsigned char *out;
     const ubyte *img;
 
     img = in[0];
-    out = (vector unsigned char *)(oplanes[0]+srcSliceY*outstrides[0]);
+    out = (vector unsigned char *) (oplanes[0] + srcSliceY * outstrides[0]);
 
-    for (i=0;i<h;i++) {
-        for (j=0;j<w/16;j++) {
-            uyvy = vec_ld (0, img);
-            U = (vector signed short)
-                vec_perm (uyvy, (vector unsigned char){0}, demux_u);
+    for (i = 0; i < h; i++)
+        for (j = 0; j < w / 16; j++) {
+            uyvy = vec_ld(0, img);
 
+            U = (vector signed short)
+                    vec_perm(uyvy, (vector unsigned char) { 0 }, demux_u);
             V = (vector signed short)
-                vec_perm (uyvy, (vector unsigned char){0}, demux_v);
-
+                    vec_perm(uyvy, (vector unsigned char) { 0 }, demux_v);
             Y = (vector signed short)
-                vec_perm (uyvy, (vector unsigned char){0}, demux_y);
+                    vec_perm(uyvy, (vector unsigned char) { 0 }, demux_y);
 
-            cvtyuvtoRGB (c, Y,U,V,&R0,&G0,&B0);
+            cvtyuvtoRGB(c, Y, U, V, &R0, &G0, &B0);
 
-            uyvy = vec_ld (16, img);
-            U = (vector signed short)
-                vec_perm (uyvy, (vector unsigned char){0}, demux_u);
+            uyvy = vec_ld(16, img);
 
+            U = (vector signed short)
+                    vec_perm(uyvy, (vector unsigned char) { 0 }, demux_u);
             V = (vector signed short)
-                vec_perm (uyvy, (vector unsigned char){0}, demux_v);
-
+                    vec_perm(uyvy, (vector unsigned char) { 0 }, demux_v);
             Y = (vector signed short)
-                vec_perm (uyvy, (vector unsigned char){0}, demux_y);
+                    vec_perm(uyvy, (vector unsigned char) { 0 }, demux_y);
 
-            cvtyuvtoRGB (c, Y,U,V,&R1,&G1,&B1);
+            cvtyuvtoRGB(c, Y, U, V, &R1, &G1, &B1);
 
-            R  = vec_packclp (R0,R1);
-            G  = vec_packclp (G0,G1);
-            B  = vec_packclp (B0,B1);
+            R = vec_packclp(R0, R1);
+            G = vec_packclp(G0, G1);
+            B = vec_packclp(B0, B1);
 
-            //      vec_mstbgr24 (R,G,B, out);
-            out_rgba (R,G,B,out);
+            // vec_mstbgr24 (R,G,B, out);
+            out_rgba(R, G, B, out);
 
             img += 32;
         }
-    }
     return srcSliceH;
 }
 
-
-
 /* Ok currently the acceleration routine only supports
  inputs of widths a multiple of 16
  and heights a multiple 2
-
  So we just fall back to the C codes for this.
-*/
* inputs of widths a multiple of 16
* and heights a multiple 2
+ *
* So we just fall back to the C codes for this.
+ */
 SwsFunc ff_yuv2rgb_init_altivec(SwsContext *c)
 {
     if (!(av_get_cpu_flags() & AV_CPU_FLAG_ALTIVEC))
         return NULL;
 
     /*
-      and this seems not to matter too much I tried a bunch of
-      videos with abnormal widths and MPlayer crashes elsewhere.
-      mplayer -vo x11 -rawvideo on:w=350:h=240 raw-350x240.eyuv
-      boom with X11 bad match.
-
-    */
-    if ((c->srcW & 0xf) != 0)    return NULL;
+     * and this seems not to matter too much I tried a bunch of
+     * videos with abnormal widths and MPlayer crashes elsewhere.
+     * mplayer -vo x11 -rawvideo on:w=350:h=240 raw-350x240.eyuv
+     * boom with X11 bad match.
+     *
+     */
+    if ((c->srcW & 0xf) != 0)
+        return NULL;
 
     switch (c->srcFormat) {
     case PIX_FMT_YUV410P:
@@ -564,7 +560,7 @@ SwsFunc ff_yuv2rgb_init_altivec(SwsContext *c)
         if ((c->srcH & 0x1) != 0)
             return NULL;
 
-        switch(c->dstFormat) {
+        switch (c->dstFormat) {
         case PIX_FMT_RGB24:
             av_log(c, AV_LOG_WARNING, "ALTIVEC: Color Space RGB24\n");
             return altivec_yuv2_rgb24;
@@ -588,143 +584,160 @@ SwsFunc ff_yuv2rgb_init_altivec(SwsContext *c)
         break;
 
     case PIX_FMT_UYVY422:
-        switch(c->dstFormat) {
+        switch (c->dstFormat) {
         case PIX_FMT_BGR32:
             av_log(c, AV_LOG_WARNING, "ALTIVEC: Color Space UYVY -> RGB32\n");
             return altivec_uyvy_rgb32;
         default: return NULL;
         }
         break;
-
     }
     return NULL;
 }
 
-void ff_yuv2rgb_init_tables_altivec(SwsContext *c, const int inv_table[4], int brightness, int contrast, int saturation)
+void ff_yuv2rgb_init_tables_altivec(SwsContext *c, const int inv_table[4],
+                                    int brightness, int contrast,
+                                    int saturation)
 {
     union {
         DECLARE_ALIGNED(16, signed short, tmp)[8];
         vector signed short vec;
     } buf;
 
-    buf.tmp[0] =  ((0xffffLL) * contrast>>8)>>9;                        //cy
-    buf.tmp[1] =  -256*brightness;                                      //oy
-    buf.tmp[2] =  (inv_table[0]>>3) *(contrast>>16)*(saturation>>16);   //crv
-    buf.tmp[3] =  (inv_table[1]>>3) *(contrast>>16)*(saturation>>16);   //cbu
-    buf.tmp[4] = -((inv_table[2]>>1)*(contrast>>16)*(saturation>>16));  //cgu
-    buf.tmp[5] = -((inv_table[3]>>1)*(contrast>>16)*(saturation>>16));  //cgv
-
-
-    c->CSHIFT = (vector unsigned short)vec_splat_u16(2);
-    c->CY   = vec_splat ((vector signed short)buf.vec, 0);
-    c->OY   = vec_splat ((vector signed short)buf.vec, 1);
-    c->CRV  = vec_splat ((vector signed short)buf.vec, 2);
-    c->CBU  = vec_splat ((vector signed short)buf.vec, 3);
-    c->CGU  = vec_splat ((vector signed short)buf.vec, 4);
-    c->CGV  = vec_splat ((vector signed short)buf.vec, 5);
+    buf.tmp[0] = ((0xffffLL) * contrast >> 8) >> 9;                               // cy
+    buf.tmp[1] = -256 * brightness;                                               // oy
+    buf.tmp[2] =   (inv_table[0] >> 3) * (contrast >> 16) * (saturation >> 16);   // crv
+    buf.tmp[3] =   (inv_table[1] >> 3) * (contrast >> 16) * (saturation >> 16);   // cbu
+    buf.tmp[4] = -((inv_table[2] >> 1) * (contrast >> 16) * (saturation >> 16));  // cgu
+    buf.tmp[5] = -((inv_table[3] >> 1) * (contrast >> 16) * (saturation >> 16));  // cgv
+
+    c->CSHIFT = (vector unsigned short) vec_splat_u16(2);
+    c->CY     = vec_splat((vector signed short) buf.vec, 0);
+    c->OY     = vec_splat((vector signed short) buf.vec, 1);
+    c->CRV    = vec_splat((vector signed short) buf.vec, 2);
+    c->CBU    = vec_splat((vector signed short) buf.vec, 3);
+    c->CGU    = vec_splat((vector signed short) buf.vec, 4);
+    c->CGV    = vec_splat((vector signed short) buf.vec, 5);
     return;
 }
 
-
-static av_always_inline void
-ff_yuv2packedX_altivec(SwsContext *c, const int16_t *lumFilter,
-                       const int16_t **lumSrc, int lumFilterSize,
-                       const int16_t *chrFilter, const int16_t **chrUSrc,
-                       const int16_t **chrVSrc, int chrFilterSize,
-                       const int16_t **alpSrc, uint8_t *dest,
-                       int dstW, int dstY, enum PixelFormat target)
+static av_always_inline void ff_yuv2packedX_altivec(SwsContext *c,
+                                                    const int16_t *lumFilter,
+                                                    const int16_t **lumSrc,
+                                                    int lumFilterSize,
+                                                    const int16_t *chrFilter,
+                                                    const int16_t **chrUSrc,
+                                                    const int16_t **chrVSrc,
+                                                    int chrFilterSize,
+                                                    const int16_t **alpSrc,
+                                                    uint8_t *dest,
+                                                    int dstW, int dstY,
+                                                    enum PixelFormat target)
 {
-    int i,j;
-    vector signed short X,X0,X1,Y0,U0,V0,Y1,U1,V1,U,V;
-    vector signed short R0,G0,B0,R1,G1,B1;
+    int i, j;
+    vector signed short X, X0, X1, Y0, U0, V0, Y1, U1, V1, U, V;
+    vector signed short R0, G0, B0, R1, G1, B1;
 
-    vector unsigned char R,G,B;
-    vector unsigned char *out,*nout;
+    vector unsigned char R, G, B;
+    vector unsigned char *out, *nout;
 
-    vector signed short   RND = vec_splat_s16(1<<3);
+    vector signed short RND   = vec_splat_s16(1 << 3);
     vector unsigned short SCL = vec_splat_u16(4);
     DECLARE_ALIGNED(16, unsigned int, scratch)[16];
 
     vector signed short *YCoeffs, *CCoeffs;
 
-    YCoeffs = c->vYCoeffsBank+dstY*lumFilterSize;
-    CCoeffs = c->vCCoeffsBank+dstY*chrFilterSize;
+    YCoeffs = c->vYCoeffsBank + dstY * lumFilterSize;
+    CCoeffs = c->vCCoeffsBank + dstY * chrFilterSize;
 
-    out = (vector unsigned char *)dest;
+    out = (vector unsigned char *) dest;
 
-    for (i=0; i<dstW; i+=16) {
+    for (i = 0; i < dstW; i += 16) {
         Y0 = RND;
         Y1 = RND;
         /* extract 16 coeffs from lumSrc */
-        for (j=0; j<lumFilterSize; j++) {
-            X0 = vec_ld (0,  &lumSrc[j][i]);
-            X1 = vec_ld (16, &lumSrc[j][i]);
-            Y0 = vec_mradds (X0, YCoeffs[j], Y0);
-            Y1 = vec_mradds (X1, YCoeffs[j], Y1);
+        for (j = 0; j < lumFilterSize; j++) {
+            X0 = vec_ld(0, &lumSrc[j][i]);
+            X1 = vec_ld(16, &lumSrc[j][i]);
+            Y0 = vec_mradds(X0, YCoeffs[j], Y0);
+            Y1 = vec_mradds(X1, YCoeffs[j], Y1);
         }
 
         U = RND;
         V = RND;
         /* extract 8 coeffs from U,V */
-        for (j=0; j<chrFilterSize; j++) {
-            X  = vec_ld (0, &chrUSrc[j][i/2]);
-            U  = vec_mradds (X, CCoeffs[j], U);
-            X  = vec_ld (0, &chrVSrc[j][i/2]);
-            V  = vec_mradds (X, CCoeffs[j], V);
+        for (j = 0; j < chrFilterSize; j++) {
+            X = vec_ld(0, &chrUSrc[j][i / 2]);
+            U = vec_mradds(X, CCoeffs[j], U);
+            X = vec_ld(0, &chrVSrc[j][i / 2]);
+            V = vec_mradds(X, CCoeffs[j], V);
         }
 
         /* scale and clip signals */
-        Y0 = vec_sra (Y0, SCL);
-        Y1 = vec_sra (Y1, SCL);
-        U  = vec_sra (U,  SCL);
-        V  = vec_sra (V,  SCL);
+        Y0 = vec_sra(Y0, SCL);
+        Y1 = vec_sra(Y1, SCL);
+        U  = vec_sra(U, SCL);
+        V  = vec_sra(V, SCL);
 
-        Y0 = vec_clip_s16 (Y0);
-        Y1 = vec_clip_s16 (Y1);
-        U  = vec_clip_s16 (U);
-        V  = vec_clip_s16 (V);
+        Y0 = vec_clip_s16(Y0);
+        Y1 = vec_clip_s16(Y1);
+        U  = vec_clip_s16(U);
+        V  = vec_clip_s16(V);
 
         /* now we have
-          Y0= y0 y1 y2 y3 y4 y5 y6 y7     Y1= y8 y9 y10 y11 y12 y13 y14 y15
-          U= u0 u1 u2 u3 u4 u5 u6 u7      V= v0 v1 v2 v3 v4 v5 v6 v7
-
-          Y0= y0 y1 y2 y3 y4 y5 y6 y7    Y1= y8 y9 y10 y11 y12 y13 y14 y15
-          U0= u0 u0 u1 u1 u2 u2 u3 u3    U1= u4 u4 u5 u5 u6 u6 u7 u7
-          V0= v0 v0 v1 v1 v2 v2 v3 v3    V1= v4 v4 v5 v5 v6 v6 v7 v7
-        */
-
-        U0 = vec_mergeh (U,U);
-        V0 = vec_mergeh (V,V);
-
-        U1 = vec_mergel (U,U);
-        V1 = vec_mergel (V,V);
-
-        cvtyuvtoRGB (c, Y0,U0,V0,&R0,&G0,&B0);
-        cvtyuvtoRGB (c, Y1,U1,V1,&R1,&G1,&B1);
-
-        R  = vec_packclp (R0,R1);
-        G  = vec_packclp (G0,G1);
-        B  = vec_packclp (B0,B1);
-
-        switch(target) {
-        case PIX_FMT_ABGR:  out_abgr  (R,G,B,out); break;
-        case PIX_FMT_BGRA:  out_bgra  (R,G,B,out); break;
-        case PIX_FMT_RGBA:  out_rgba  (R,G,B,out); break;
-        case PIX_FMT_ARGB:  out_argb  (R,G,B,out); break;
-        case PIX_FMT_RGB24: out_rgb24 (R,G,B,out); break;
-        case PIX_FMT_BGR24: out_bgr24 (R,G,B,out); break;
+         * Y0 = y0 y1 y2 y3 y4 y5 y6 y7    Y1 = y8 y9 y10 y11 y12 y13 y14 y15
+         * U  = u0 u1 u2 u3 u4 u5 u6 u7    V  = v0 v1 v2 v3 v4 v5 v6 v7
+         *
+         * Y0 = y0 y1 y2 y3 y4 y5 y6 y7    Y1 = y8 y9 y10 y11 y12 y13 y14 y15
+         * U0 = u0 u0 u1 u1 u2 u2 u3 u3    U1 = u4 u4 u5 u5 u6 u6 u7 u7
+         * V0 = v0 v0 v1 v1 v2 v2 v3 v3    V1 = v4 v4 v5 v5 v6 v6 v7 v7
+         */
+
+        U0 = vec_mergeh(U, U);
+        V0 = vec_mergeh(V, V);
+
+        U1 = vec_mergel(U, U);
+        V1 = vec_mergel(V, V);
+
+        cvtyuvtoRGB(c, Y0, U0, V0, &R0, &G0, &B0);
+        cvtyuvtoRGB(c, Y1, U1, V1, &R1, &G1, &B1);
+
+        R = vec_packclp(R0, R1);
+        G = vec_packclp(G0, G1);
+        B = vec_packclp(B0, B1);
+
+        switch (target) {
+        case PIX_FMT_ABGR:
+            out_abgr(R, G, B, out);
+            break;
+        case PIX_FMT_BGRA:
+            out_bgra(R, G, B, out);
+            break;
+        case PIX_FMT_RGBA:
+            out_rgba(R, G, B, out);
+            break;
+        case PIX_FMT_ARGB:
+            out_argb(R, G, B, out);
+            break;
+        case PIX_FMT_RGB24:
+            out_rgb24(R, G, B, out);
+            break;
+        case PIX_FMT_BGR24:
+            out_bgr24(R, G, B, out);
+            break;
         default:
-            {
-                /* If this is reached, the caller should have called yuv2packedXinC
-                   instead. */
-                static int printed_error_message;
-                if (!printed_error_message) {
-                    av_log(c, AV_LOG_ERROR, "altivec_yuv2packedX doesn't support %s output\n",
-                           sws_format_name(c->dstFormat));
-                    printed_error_message=1;
-                }
-                return;
+        {
+            /* If this is reached, the caller should have called yuv2packedXinC
+             * instead. */
+            static int printed_error_message;
+            if (!printed_error_message) {
+                av_log(c, AV_LOG_ERROR,
+                       "altivec_yuv2packedX doesn't support %s output\n",
+                       sws_format_name(c->dstFormat));
+                printed_error_message = 1;
             }
+            return;
+        }
         }
     }
 
@@ -734,87 +747,104 @@ ff_yuv2packedX_altivec(SwsContext *c, const int16_t *lumFilter,
         Y0 = RND;
         Y1 = RND;
         /* extract 16 coeffs from lumSrc */
-        for (j=0; j<lumFilterSize; j++) {
-            X0 = vec_ld (0,  &lumSrc[j][i]);
-            X1 = vec_ld (16, &lumSrc[j][i]);
-            Y0 = vec_mradds (X0, YCoeffs[j], Y0);
-            Y1 = vec_mradds (X1, YCoeffs[j], Y1);
+        for (j = 0; j < lumFilterSize; j++) {
+            X0 = vec_ld(0, &lumSrc[j][i]);
+            X1 = vec_ld(16, &lumSrc[j][i]);
+            Y0 = vec_mradds(X0, YCoeffs[j], Y0);
+            Y1 = vec_mradds(X1, YCoeffs[j], Y1);
         }
 
         U = RND;
         V = RND;
         /* extract 8 coeffs from U,V */
-        for (j=0; j<chrFilterSize; j++) {
-            X  = vec_ld (0, &chrUSrc[j][i/2]);
-            U  = vec_mradds (X, CCoeffs[j], U);
-            X  = vec_ld (0, &chrVSrc[j][i/2]);
-            V  = vec_mradds (X, CCoeffs[j], V);
+        for (j = 0; j < chrFilterSize; j++) {
+            X = vec_ld(0, &chrUSrc[j][i / 2]);
+            U = vec_mradds(X, CCoeffs[j], U);
+            X = vec_ld(0, &chrVSrc[j][i / 2]);
+            V = vec_mradds(X, CCoeffs[j], V);
         }
 
         /* scale and clip signals */
-        Y0 = vec_sra (Y0, SCL);
-        Y1 = vec_sra (Y1, SCL);
-        U  = vec_sra (U,  SCL);
-        V  = vec_sra (V,  SCL);
+        Y0 = vec_sra(Y0, SCL);
+        Y1 = vec_sra(Y1, SCL);
+        U  = vec_sra(U, SCL);
+        V  = vec_sra(V, SCL);
 
-        Y0 = vec_clip_s16 (Y0);
-        Y1 = vec_clip_s16 (Y1);
-        U  = vec_clip_s16 (U);
-        V  = vec_clip_s16 (V);
+        Y0 = vec_clip_s16(Y0);
+        Y1 = vec_clip_s16(Y1);
+        U  = vec_clip_s16(U);
+        V  = vec_clip_s16(V);
 
         /* now we have
-           Y0= y0 y1 y2 y3 y4 y5 y6 y7     Y1= y8 y9 y10 y11 y12 y13 y14 y15
-           U = u0 u1 u2 u3 u4 u5 u6 u7     V = v0 v1 v2 v3 v4 v5 v6 v7
-
-           Y0= y0 y1 y2 y3 y4 y5 y6 y7    Y1= y8 y9 y10 y11 y12 y13 y14 y15
-           U0= u0 u0 u1 u1 u2 u2 u3 u3    U1= u4 u4 u5 u5 u6 u6 u7 u7
-           V0= v0 v0 v1 v1 v2 v2 v3 v3    V1= v4 v4 v5 v5 v6 v6 v7 v7
-        */
-
-        U0 = vec_mergeh (U,U);
-        V0 = vec_mergeh (V,V);
-
-        U1 = vec_mergel (U,U);
-        V1 = vec_mergel (V,V);
-
-        cvtyuvtoRGB (c, Y0,U0,V0,&R0,&G0,&B0);
-        cvtyuvtoRGB (c, Y1,U1,V1,&R1,&G1,&B1);
-
-        R  = vec_packclp (R0,R1);
-        G  = vec_packclp (G0,G1);
-        B  = vec_packclp (B0,B1);
-
-        nout = (vector unsigned char *)scratch;
-        switch(target) {
-        case PIX_FMT_ABGR:  out_abgr  (R,G,B,nout); break;
-        case PIX_FMT_BGRA:  out_bgra  (R,G,B,nout); break;
-        case PIX_FMT_RGBA:  out_rgba  (R,G,B,nout); break;
-        case PIX_FMT_ARGB:  out_argb  (R,G,B,nout); break;
-        case PIX_FMT_RGB24: out_rgb24 (R,G,B,nout); break;
-        case PIX_FMT_BGR24: out_bgr24 (R,G,B,nout); break;
+         * Y0 = y0 y1 y2 y3 y4 y5 y6 y7    Y1 = y8 y9 y10 y11 y12 y13 y14 y15
+         * U  = u0 u1 u2 u3 u4 u5 u6 u7    V  = v0 v1 v2 v3 v4 v5 v6 v7
+         *
+         * Y0 = y0 y1 y2 y3 y4 y5 y6 y7    Y1 = y8 y9 y10 y11 y12 y13 y14 y15
+         * U0 = u0 u0 u1 u1 u2 u2 u3 u3    U1 = u4 u4 u5 u5 u6 u6 u7 u7
+         * V0 = v0 v0 v1 v1 v2 v2 v3 v3    V1 = v4 v4 v5 v5 v6 v6 v7 v7
+         */
+
+        U0 = vec_mergeh(U, U);
+        V0 = vec_mergeh(V, V);
+
+        U1 = vec_mergel(U, U);
+        V1 = vec_mergel(V, V);
+
+        cvtyuvtoRGB(c, Y0, U0, V0, &R0, &G0, &B0);
+        cvtyuvtoRGB(c, Y1, U1, V1, &R1, &G1, &B1);
+
+        R = vec_packclp(R0, R1);
+        G = vec_packclp(G0, G1);
+        B = vec_packclp(B0, B1);
+
+        nout = (vector unsigned char *) scratch;
+        switch (target) {
+        case PIX_FMT_ABGR:
+            out_abgr(R, G, B, nout);
+            break;
+        case PIX_FMT_BGRA:
+            out_bgra(R, G, B, nout);
+            break;
+        case PIX_FMT_RGBA:
+            out_rgba(R, G, B, nout);
+            break;
+        case PIX_FMT_ARGB:
+            out_argb(R, G, B, nout);
+            break;
+        case PIX_FMT_RGB24:
+            out_rgb24(R, G, B, nout);
+            break;
+        case PIX_FMT_BGR24:
+            out_bgr24(R, G, B, nout);
+            break;
         default:
             /* Unreachable, I think. */
-            av_log(c, AV_LOG_ERROR, "altivec_yuv2packedX doesn't support %s output\n",
+            av_log(c, AV_LOG_ERROR,
+                   "altivec_yuv2packedX doesn't support %s output\n",
                    sws_format_name(c->dstFormat));
             return;
         }
 
-        memcpy (&((uint32_t*)dest)[i], scratch, (dstW-i)/4);
+        memcpy(&((uint32_t *) dest)[i], scratch, (dstW - i) / 4);
     }
-
 }
 
-#define YUV2PACKEDX_WRAPPER(suffix, pixfmt) \
-void ff_yuv2 ## suffix ## _X_altivec(SwsContext *c, const int16_t *lumFilter, \
-                            const int16_t **lumSrc, int lumFilterSize, \
-                            const int16_t *chrFilter, const int16_t **chrUSrc, \
-                            const int16_t **chrVSrc, int chrFilterSize, \
-                            const int16_t **alpSrc, uint8_t *dest, \
-                            int dstW, int dstY) \
-{ \
-    ff_yuv2packedX_altivec(c, lumFilter, lumSrc, lumFilterSize, \
-                           chrFilter, chrUSrc, chrVSrc, chrFilterSize, \
-                           alpSrc, dest, dstW, dstY, pixfmt); \
+#define YUV2PACKEDX_WRAPPER(suffix, pixfmt)                             \
+void ff_yuv2 ## suffix ## _X_altivec(SwsContext *c,                     \
+                                     const int16_t *lumFilter,          \
+                                     const int16_t **lumSrc,            \
+                                     int lumFilterSize,                 \
+                                     const int16_t *chrFilter,          \
+                                     const int16_t **chrUSrc,           \
+                                     const int16_t **chrVSrc,           \
+                                     int chrFilterSize,                 \
+                                     const int16_t **alpSrc,            \
+                                     uint8_t *dest, int dstW, int dstY) \
+{                                                                       \
+    ff_yuv2packedX_altivec(c, lumFilter, lumSrc, lumFilterSize,         \
+                           chrFilter, chrUSrc, chrVSrc,                 \
+                           chrFilterSize, alpSrc,                       \
+                           dest, dstW, dstY, pixfmt);                   \
 }
 
 YUV2PACKEDX_WRAPPER(abgr,  PIX_FMT_ABGR);