[Ffmpeg-cvslog] r6154 - trunk/libavcodec/ppc/h264_altivec.c
kostya
subversion
Sun Sep 3 06:45:01 CEST 2006
Author: kostya
Date: Sun Sep 3 06:44:50 2006
New Revision: 6154
Modified:
trunk/libavcodec/ppc/h264_altivec.c
Log:
AltiVec version of put_no_rnd_h264_chroma_pixels_tab[0] (slightly changed version of put_h264_chroma_pixels_tab[0])
Modified: trunk/libavcodec/ppc/h264_altivec.c
==============================================================================
--- trunk/libavcodec/ppc/h264_altivec.c (original)
+++ trunk/libavcodec/ppc/h264_altivec.c Sun Sep 3 06:44:50 2006
@@ -175,6 +175,135 @@
OPNAME ## pixels ## SIZE ## _l2_ ## CODETYPE(dst, halfV, halfHV, stride, SIZE, SIZE);\
}\
+/* this code assume that stride % 16 == 0 */
+void put_no_rnd_h264_chroma_mc8_altivec(uint8_t * dst, uint8_t * src, int stride, int h, int x, int y) {
+ signed int ABCD[4] __attribute__((aligned(16))) =
+ {((8 - x) * (8 - y)),
+ ((x) * (8 - y)),
+ ((8 - x) * (y)),
+ ((x) * (y))};
+ register int i;
+ vector unsigned char fperm;
+ const vector signed int vABCD = vec_ld(0, ABCD);
+ const vector signed short vA = vec_splat((vector signed short)vABCD, 1);
+ const vector signed short vB = vec_splat((vector signed short)vABCD, 3);
+ const vector signed short vC = vec_splat((vector signed short)vABCD, 5);
+ const vector signed short vD = vec_splat((vector signed short)vABCD, 7);
+ const vector signed int vzero = vec_splat_s32(0);
+ const vector signed short v28ss = vec_sub(vec_sl(vec_splat_s16(1),vec_splat_u16(5)),vec_splat_s16(4));
+ const vector unsigned short v6us = vec_splat_u16(6);
+ register int loadSecond = (((unsigned long)src) % 16) <= 7 ? 0 : 1;
+ register int reallyBadAlign = (((unsigned long)src) % 16) == 15 ? 1 : 0;
+
+ vector unsigned char vsrcAuc, vsrcBuc, vsrcperm0, vsrcperm1;
+ vector unsigned char vsrc0uc, vsrc1uc;
+ vector signed short vsrc0ssH, vsrc1ssH;
+ vector unsigned char vsrcCuc, vsrc2uc, vsrc3uc;
+ vector signed short vsrc2ssH, vsrc3ssH, psum;
+ vector unsigned char vdst, ppsum, vfdst, fsum;
+
+ if (((unsigned long)dst) % 16 == 0) {
+ fperm = (vector unsigned char)AVV(0x10, 0x11, 0x12, 0x13,
+ 0x14, 0x15, 0x16, 0x17,
+ 0x08, 0x09, 0x0A, 0x0B,
+ 0x0C, 0x0D, 0x0E, 0x0F);
+ } else {
+ fperm = (vector unsigned char)AVV(0x00, 0x01, 0x02, 0x03,
+ 0x04, 0x05, 0x06, 0x07,
+ 0x18, 0x19, 0x1A, 0x1B,
+ 0x1C, 0x1D, 0x1E, 0x1F);
+ }
+
+ vsrcAuc = vec_ld(0, src);
+
+ if (loadSecond)
+ vsrcBuc = vec_ld(16, src);
+ vsrcperm0 = vec_lvsl(0, src);
+ vsrcperm1 = vec_lvsl(1, src);
+
+ vsrc0uc = vec_perm(vsrcAuc, vsrcBuc, vsrcperm0);
+ if (reallyBadAlign)
+ vsrc1uc = vsrcBuc;
+ else
+ vsrc1uc = vec_perm(vsrcAuc, vsrcBuc, vsrcperm1);
+
+ vsrc0ssH = (vector signed short)vec_mergeh((vector unsigned char)vzero,
+ (vector unsigned char)vsrc0uc);
+ vsrc1ssH = (vector signed short)vec_mergeh((vector unsigned char)vzero,
+ (vector unsigned char)vsrc1uc);
+
+ if (!loadSecond) {// -> !reallyBadAlign
+ for (i = 0 ; i < h ; i++) {
+
+
+ vsrcCuc = vec_ld(stride + 0, src);
+
+ vsrc2uc = vec_perm(vsrcCuc, vsrcCuc, vsrcperm0);
+ vsrc3uc = vec_perm(vsrcCuc, vsrcCuc, vsrcperm1);
+
+ vsrc2ssH = (vector signed short)vec_mergeh((vector unsigned char)vzero,
+ (vector unsigned char)vsrc2uc);
+ vsrc3ssH = (vector signed short)vec_mergeh((vector unsigned char)vzero,
+ (vector unsigned char)vsrc3uc);
+
+ psum = vec_mladd(vA, vsrc0ssH, vec_splat_s16(0));
+ psum = vec_mladd(vB, vsrc1ssH, psum);
+ psum = vec_mladd(vC, vsrc2ssH, psum);
+ psum = vec_mladd(vD, vsrc3ssH, psum);
+ psum = vec_add(v28ss, psum);
+ psum = vec_sra(psum, v6us);
+
+ vdst = vec_ld(0, dst);
+ ppsum = (vector unsigned char)vec_packsu(psum, psum);
+ fsum = vec_perm(vdst, ppsum, fperm);
+
+ vec_st(fsum, 0, dst);
+
+ vsrc0ssH = vsrc2ssH;
+ vsrc1ssH = vsrc3ssH;
+
+ dst += stride;
+ src += stride;
+ }
+ } else {
+ vector unsigned char vsrcDuc;
+ for (i = 0 ; i < h ; i++) {
+ vsrcCuc = vec_ld(stride + 0, src);
+ vsrcDuc = vec_ld(stride + 16, src);
+
+ vsrc2uc = vec_perm(vsrcCuc, vsrcDuc, vsrcperm0);
+ if (reallyBadAlign)
+ vsrc3uc = vsrcDuc;
+ else
+ vsrc3uc = vec_perm(vsrcCuc, vsrcDuc, vsrcperm1);
+
+ vsrc2ssH = (vector signed short)vec_mergeh((vector unsigned char)vzero,
+ (vector unsigned char)vsrc2uc);
+ vsrc3ssH = (vector signed short)vec_mergeh((vector unsigned char)vzero,
+ (vector unsigned char)vsrc3uc);
+
+ psum = vec_mladd(vA, vsrc0ssH, vec_splat_s16(0));
+ psum = vec_mladd(vB, vsrc1ssH, psum);
+ psum = vec_mladd(vC, vsrc2ssH, psum);
+ psum = vec_mladd(vD, vsrc3ssH, psum);
+ psum = vec_add(v28ss, psum);
+ psum = vec_sr(psum, v6us);
+
+ vdst = vec_ld(0, dst);
+ ppsum = (vector unsigned char)vec_pack(psum, psum);
+ fsum = vec_perm(vdst, ppsum, fperm);
+
+ vec_st(fsum, 0, dst);
+
+ vsrc0ssH = vsrc2ssH;
+ vsrc1ssH = vsrc3ssH;
+
+ dst += stride;
+ src += stride;
+ }
+ }
+}
+
static inline void put_pixels16_l2_altivec( uint8_t * dst, const uint8_t * src1,
const uint8_t * src2, int dst_stride,
int src_stride1, int h)
@@ -272,6 +401,7 @@
#ifdef HAVE_ALTIVEC
if (has_altivec()) {
c->put_h264_chroma_pixels_tab[0] = put_h264_chroma_mc8_altivec;
+ c->put_no_rnd_h264_chroma_pixels_tab[0] = put_no_rnd_h264_chroma_mc8_altivec;
c->avg_h264_chroma_pixels_tab[0] = avg_h264_chroma_mc8_altivec;
#define dspfunc(PFX, IDX, NUM) \
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