[x264-devel] Re: [Griffith Rees <griff.rees at gmail.com>] Re: Re: Problems compiling xubuntu ppc

Guillaume POIRIER poirierg at gmail.com
Wed Jan 24 10:42:53 CET 2007


Hi,

On 1/23/07, Guillaume POIRIER <poirierg at gmail.com> wrote:


> Attached patch allows to go even further in compilation, so that you
> should have this message instead:
>
> gcc -O4 -ffast-math  -Wall -I. -D__X264__ -DHAVE_MALLOC_H -maltivec

[..]

Attached patch fixes all compilation issues on Linux, and pass
regression tests on both Linux and OSX. It needs to be applied on top
of a current, clean svn checkout.

I won't apply it as it is as I need to find a better solution for the
type of mfv on quant 4x4 dc routine. That cleaner solution should
allow shave off one or two cycles by getting rid of a vec_packs()

Happy testing.

Guillaume
-------------- next part --------------
Index: common/ppc/quant.c
===================================================================
--- common/ppc/quant.c	(revision 620)
+++ common/ppc/quant.c	(working copy)
@@ -18,10 +18,6 @@
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
 *****************************************************************************/
 
-#ifdef HAVE_ALTIVEC_H
-#include <altivec.h>
-#endif
-
 #include "common/common.h"
 #include "ppccommon.h"
 #include "quant.h"            
@@ -53,31 +49,31 @@
 temp1v = vec_xor(temp1v, mskA);                                              \
 temp2v = vec_xor(temp2v, mskB);                                              \
 temp1v = vec_adds(temp1v, vec_and(mskA, one));                                \
-vec_st(temp1v, (dct0), dct);                                                 \
+vec_st(temp1v, (dct0), (int16_t*)dct);                                        \
 temp2v = vec_adds(temp2v, vec_and(mskB, one));                                \
-vec_st(temp2v, (dct1), dct);
+vec_st(temp2v, (dct1), (int16_t*)dct);
                 
 void x264_quant_4x4_altivec( int16_t dct[4][4], int quant_mf[4][4], int const i_qbits, int const f ) {
     vector bool short mskA;
-    vec_s32_t i_qbitsv;
+    vec_u32_t i_qbitsv;
     vec_u16_t coefvA;
     vec_u32_t multEvenvA, multOddvA;
-    vec_u32_t mfvA;
+    vec_u16_t mfvA;
     vec_s16_t zerov, one;
-    vec_s32_t fV;
+    vec_u32_t fV;
 
     vector bool short mskB;
     vec_u16_t coefvB;
     vec_u32_t multEvenvB, multOddvB;
-    vec_u32_t mfvB;
+    vec_u16_t mfvB;
 
     vec_s16_t temp1v, temp2v;
 
-    vect_sint_u qbits_u;
+    vect_int_u qbits_u;
     qbits_u.s[0]=i_qbits;
     i_qbitsv = vec_splat(qbits_u.v, 0);
 
-    vect_sint_u f_u;
+    vect_int_u f_u;
     f_u.s[0]=f;
 
     fV = vec_splat(f_u.v, 0);
@@ -96,10 +92,10 @@
 mskB = vec_cmplt(temp2v, zerov);                                \
 coefvA = (vec_u16_t) vec_max(vec_sub(zerov, temp1v), temp1v);   \
 coefvB = (vec_u16_t) vec_max(vec_sub(zerov, temp2v), temp2v);   \
-multEvenvA = vec_mule(coefvA, mfv);                             \
-multOddvA = vec_mulo(coefvA, mfv);                              \
-multEvenvB = vec_mule(coefvB, mfv);                             \
-multOddvB = vec_mulo(coefvB, mfv);                              \
+multEvenvA = vec_mule(coefvA, (vec_u16_t)mfv);                  \
+multOddvA  = vec_mulo(coefvA, (vec_u16_t)mfv);                  \
+multEvenvB = vec_mule(coefvB, (vec_u16_t)mfv);                  \
+multOddvB  = vec_mulo(coefvB, (vec_u16_t)mfv);                  \
 multEvenvA = vec_add(multEvenvA, fV);                           \
 multOddvA = vec_add(multOddvA, fV);                             \
 multEvenvB = vec_add(multEvenvB, fV);                           \
@@ -113,18 +109,18 @@
 temp1v = vec_xor(temp1v, mskA);                                 \
 temp2v = vec_xor(temp2v, mskB);                                 \
 temp1v = vec_add(temp1v, vec_and(mskA, one));                   \
-vec_st(temp1v, (dct0), dct);                                    \
+vec_st(temp1v, (dct0), (int16_t*)dct);                          \
 temp2v = vec_add(temp2v, vec_and(mskB, one));                   \
-vec_st(temp2v, (dct1), dct);
+vec_st(temp2v, (dct1), (int16_t*)dct);
 
 
 void x264_quant_4x4_dc_altivec( int16_t dct[4][4], int i_quant_mf, int const i_qbits, int const f ) {
     vector bool short mskA;
-    vec_s32_t i_qbitsv;
+    vec_u32_t i_qbitsv;
     vec_u16_t coefvA;
     vec_u32_t multEvenvA, multOddvA;
     vec_s16_t zerov, one;
-    vec_s32_t fV;
+    vec_u32_t fV;
 
     vector bool short mskB;
     vec_u16_t coefvB;
@@ -138,11 +134,11 @@
     mfv = vec_splat( mf_u.v, 0 );
     mfv = vec_packs( mfv, mfv);
 
-    vect_sint_u qbits_u;
+    vect_int_u qbits_u;
     qbits_u.s[0]=i_qbits;
     i_qbitsv = vec_splat(qbits_u.v, 0);
 
-    vect_sint_u f_u;
+    vect_int_u f_u;
     f_u.s[0]=f;
     fV = vec_splat(f_u.v, 0);
 
@@ -155,15 +151,17 @@
 
 void x264_quant_8x8_altivec( int16_t dct[8][8], int quant_mf[8][8], int const i_qbits, int const f ) {
     vector bool short mskA;
-    vec_s32_t i_qbitsv;
+    vec_u32_t i_qbitsv;
     vec_u16_t coefvA;
-    vec_s32_t multEvenvA, multOddvA, mfvA;
+    vec_u32_t multEvenvA, multOddvA;
+    vec_u16_t mfvA;
     vec_s16_t zerov, one;
-    vec_s32_t fV;
+    vec_u32_t fV;
     
     vector bool short mskB;
     vec_u16_t coefvB;
-    vec_u32_t multEvenvB, multOddvB, mfvB;
+    vec_u32_t multEvenvB, multOddvB;
+    vec_u16_t mfvB;
     
     vec_s16_t temp1v, temp2v;
     
@@ -171,7 +169,7 @@
     qbits_u.s[0]=i_qbits;
     i_qbitsv = vec_splat(qbits_u.v, 0);
 
-    vect_sint_u f_u;
+    vect_int_u f_u;
     f_u.s[0]=f;
     fV = vec_splat(f_u.v, 0);
 
Index: common/ppc/dct.c
===================================================================
--- common/ppc/dct.c	(revision 620)
+++ common/ppc/dct.c	(working copy)
@@ -60,8 +60,8 @@
     permHighv = (vec_u8_t) CV(0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17);
     VEC_DCT( dct0v, dct1v, dct2v, dct3v, tmp0v, tmp1v, tmp2v, tmp3v );
 
-    vec_st(vec_perm(tmp0v, tmp1v, permHighv), 0, dct);
-    vec_st(vec_perm(tmp2v, tmp3v, permHighv), 16, dct);
+    vec_st(vec_perm(tmp0v, tmp1v, permHighv), 0,  (int16_t*)dct);
+    vec_st(vec_perm(tmp2v, tmp3v, permHighv), 16, (int16_t*)dct);
 }
 
 void x264_sub8x8_dct_altivec( int16_t dct[4][4][4],
@@ -94,14 +94,14 @@
     VEC_DCT( dct0v, dct1v, dct2v, dct3v, tmp0v, tmp1v, tmp2v, tmp3v );
     VEC_DCT( dct4v, dct5v, dct6v, dct7v, tmp4v, tmp5v, tmp6v, tmp7v );
 
-    vec_st(vec_perm(tmp0v, tmp1v, permHighv), 0, dct);
-    vec_st(vec_perm(tmp2v, tmp3v, permHighv), 16, dct);
-    vec_st(vec_perm(tmp4v, tmp5v, permHighv), 32, dct);
-    vec_st(vec_perm(tmp6v, tmp7v, permHighv), 48, dct);
-    vec_st(vec_perm(tmp0v, tmp1v, permLowv),  64, dct);
-    vec_st(vec_perm(tmp2v, tmp3v, permLowv), 80, dct);
-    vec_st(vec_perm(tmp4v, tmp5v, permLowv), 96, dct);
-    vec_st(vec_perm(tmp6v, tmp7v, permLowv), 112, dct);
+    vec_st(vec_perm(tmp0v, tmp1v, permHighv), 0,   (int16_t*)dct);
+    vec_st(vec_perm(tmp2v, tmp3v, permHighv), 16,  (int16_t*)dct);
+    vec_st(vec_perm(tmp4v, tmp5v, permHighv), 32,  (int16_t*)dct);
+    vec_st(vec_perm(tmp6v, tmp7v, permHighv), 48,  (int16_t*)dct);
+    vec_st(vec_perm(tmp0v, tmp1v, permLowv),  64,  (int16_t*)dct);
+    vec_st(vec_perm(tmp2v, tmp3v, permLowv),  80,  (int16_t*)dct);
+    vec_st(vec_perm(tmp4v, tmp5v, permLowv),  96,  (int16_t*)dct);
+    vec_st(vec_perm(tmp6v, tmp7v, permLowv),  112, (int16_t*)dct);
 }
 
 void x264_sub16x16_dct_altivec( int16_t dct[16][4][4],
@@ -311,8 +311,8 @@
 
 void x264_add8x8_idct8_altivec( uint8_t *dst, int16_t dct[8][8] )
 {
-    vec_s16_t onev = vec_splat_s16(1);
-    vec_s16_t twov = vec_splat_s16(2);
+    vec_u16_t onev = vec_splat_s16(1);
+    vec_u16_t twov = vec_splat_s16(2);
 
     dct[0][0] += 32; // rounding for the >>6 at the end
 
@@ -341,7 +341,7 @@
 
     vec_u8_t perm_ldv = vec_lvsl(0, dst);
     vec_u8_t perm_stv = vec_lvsr(8, dst);
-    vec_s16_t sixv = vec_splat_s16(6);
+    vec_u16_t sixv = vec_splat_s16(6);
     const vec_u8_t sel = (vec_u8_t) CV(0,0,0,0,0,0,0,0,-1,-1,-1,-1,-1,-1,-1,-1);
     LOAD_ZERO;
 
Index: common/ppc/quant.h
===================================================================
--- common/ppc/quant.h	(revision 620)
+++ common/ppc/quant.h	(working copy)
@@ -18,6 +18,10 @@
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
 *****************************************************************************/
 
+#ifdef SYS_LINUX
+#include <altivec.h>
+#endif
+
 #ifndef _PPC_QUANT_H
 #define _PPC_QUANT_H 1
 


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