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Diffstat (limited to 'contrib/ffmpeg/libavcodec/ppc/dsputil_altivec.c')
| -rw-r--r-- | contrib/ffmpeg/libavcodec/ppc/dsputil_altivec.c | 1589 |
1 files changed, 1589 insertions, 0 deletions
diff --git a/contrib/ffmpeg/libavcodec/ppc/dsputil_altivec.c b/contrib/ffmpeg/libavcodec/ppc/dsputil_altivec.c new file mode 100644 index 000000000..bbc53d761 --- /dev/null +++ b/contrib/ffmpeg/libavcodec/ppc/dsputil_altivec.c @@ -0,0 +1,1589 @@ +/* + * Copyright (c) 2002 Brian Foley + * Copyright (c) 2002 Dieter Shirley + * Copyright (c) 2003-2004 Romain Dolbeau <romain@dolbeau.org> + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include "../dsputil.h" + +#include "gcc_fixes.h" + +#include "dsputil_altivec.h" + +#ifdef CONFIG_DARWIN +#include <sys/sysctl.h> +#else /* CONFIG_DARWIN */ +#ifdef __AMIGAOS4__ +#include <exec/exec.h> +#include <interfaces/exec.h> +#include <proto/exec.h> +#else /* __AMIGAOS4__ */ +#include <signal.h> +#include <setjmp.h> + +static sigjmp_buf jmpbuf; +static volatile sig_atomic_t canjump = 0; + +static void sigill_handler (int sig) +{ + if (!canjump) { + signal (sig, SIG_DFL); + raise (sig); + } + + canjump = 0; + siglongjmp (jmpbuf, 1); +} +#endif /* CONFIG_DARWIN */ +#endif /* __AMIGAOS4__ */ + +int sad16_x2_altivec(void *v, uint8_t *pix1, uint8_t *pix2, int line_size, int h) +{ + int i; + int s __attribute__((aligned(16))); + const_vector unsigned char zero = (const_vector unsigned char)vec_splat_u8(0); + vector unsigned char *tv; + vector unsigned char pix1v, pix2v, pix2iv, avgv, t5; + vector unsigned int sad; + vector signed int sumdiffs; + + s = 0; + sad = (vector unsigned int)vec_splat_u32(0); + for(i=0;i<h;i++) { + /* + Read unaligned pixels into our vectors. The vectors are as follows: + pix1v: pix1[0]-pix1[15] + pix2v: pix2[0]-pix2[15] pix2iv: pix2[1]-pix2[16] + */ + tv = (vector unsigned char *) pix1; + pix1v = vec_perm(tv[0], tv[1], vec_lvsl(0, pix1)); + + tv = (vector unsigned char *) &pix2[0]; + pix2v = vec_perm(tv[0], tv[1], vec_lvsl(0, &pix2[0])); + + tv = (vector unsigned char *) &pix2[1]; + pix2iv = vec_perm(tv[0], tv[1], vec_lvsl(0, &pix2[1])); + + /* Calculate the average vector */ + avgv = vec_avg(pix2v, pix2iv); + + /* Calculate a sum of abs differences vector */ + t5 = vec_sub(vec_max(pix1v, avgv), vec_min(pix1v, avgv)); + + /* Add each 4 pixel group together and put 4 results into sad */ + sad = vec_sum4s(t5, sad); + + pix1 += line_size; + pix2 += line_size; + } + /* Sum up the four partial sums, and put the result into s */ + sumdiffs = vec_sums((vector signed int) sad, (vector signed int) zero); + sumdiffs = vec_splat(sumdiffs, 3); + vec_ste(sumdiffs, 0, &s); + + return s; +} + +int sad16_y2_altivec(void *v, uint8_t *pix1, uint8_t *pix2, int line_size, int h) +{ + int i; + int s __attribute__((aligned(16))); + const_vector unsigned char zero = (const_vector unsigned char)vec_splat_u8(0); + vector unsigned char *tv; + vector unsigned char pix1v, pix2v, pix3v, avgv, t5; + vector unsigned int sad; + vector signed int sumdiffs; + uint8_t *pix3 = pix2 + line_size; + + s = 0; + sad = (vector unsigned int)vec_splat_u32(0); + + /* + Due to the fact that pix3 = pix2 + line_size, the pix3 of one + iteration becomes pix2 in the next iteration. We can use this + fact to avoid a potentially expensive unaligned read, each + time around the loop. + Read unaligned pixels into our vectors. The vectors are as follows: + pix2v: pix2[0]-pix2[15] + Split the pixel vectors into shorts + */ + tv = (vector unsigned char *) &pix2[0]; + pix2v = vec_perm(tv[0], tv[1], vec_lvsl(0, &pix2[0])); + + for(i=0;i<h;i++) { + /* + Read unaligned pixels into our vectors. The vectors are as follows: + pix1v: pix1[0]-pix1[15] + pix3v: pix3[0]-pix3[15] + */ + tv = (vector unsigned char *) pix1; + pix1v = vec_perm(tv[0], tv[1], vec_lvsl(0, pix1)); + + tv = (vector unsigned char *) &pix3[0]; + pix3v = vec_perm(tv[0], tv[1], vec_lvsl(0, &pix3[0])); + + /* Calculate the average vector */ + avgv = vec_avg(pix2v, pix3v); + + /* Calculate a sum of abs differences vector */ + t5 = vec_sub(vec_max(pix1v, avgv), vec_min(pix1v, avgv)); + + /* Add each 4 pixel group together and put 4 results into sad */ + sad = vec_sum4s(t5, sad); + + pix1 += line_size; + pix2v = pix3v; + pix3 += line_size; + + } + + /* Sum up the four partial sums, and put the result into s */ + sumdiffs = vec_sums((vector signed int) sad, (vector signed int) zero); + sumdiffs = vec_splat(sumdiffs, 3); + vec_ste(sumdiffs, 0, &s); + return s; +} + +int sad16_xy2_altivec(void *v, uint8_t *pix1, uint8_t *pix2, int line_size, int h) +{ + int i; + int s __attribute__((aligned(16))); + uint8_t *pix3 = pix2 + line_size; + const_vector unsigned char zero = (const_vector unsigned char)vec_splat_u8(0); + const_vector unsigned short two = (const_vector unsigned short)vec_splat_u16(2); + vector unsigned char *tv, avgv, t5; + vector unsigned char pix1v, pix2v, pix3v, pix2iv, pix3iv; + vector unsigned short pix2lv, pix2hv, pix2ilv, pix2ihv; + vector unsigned short pix3lv, pix3hv, pix3ilv, pix3ihv; + vector unsigned short avghv, avglv; + vector unsigned short t1, t2, t3, t4; + vector unsigned int sad; + vector signed int sumdiffs; + + sad = (vector unsigned int)vec_splat_u32(0); + + s = 0; + + /* + Due to the fact that pix3 = pix2 + line_size, the pix3 of one + iteration becomes pix2 in the next iteration. We can use this + fact to avoid a potentially expensive unaligned read, as well + as some splitting, and vector addition each time around the loop. + Read unaligned pixels into our vectors. The vectors are as follows: + pix2v: pix2[0]-pix2[15] pix2iv: pix2[1]-pix2[16] + Split the pixel vectors into shorts + */ + tv = (vector unsigned char *) &pix2[0]; + pix2v = vec_perm(tv[0], tv[1], vec_lvsl(0, &pix2[0])); + + tv = (vector unsigned char *) &pix2[1]; + pix2iv = vec_perm(tv[0], tv[1], vec_lvsl(0, &pix2[1])); + + pix2hv = (vector unsigned short) vec_mergeh(zero, pix2v); + pix2lv = (vector unsigned short) vec_mergel(zero, pix2v); + pix2ihv = (vector unsigned short) vec_mergeh(zero, pix2iv); + pix2ilv = (vector unsigned short) vec_mergel(zero, pix2iv); + t1 = vec_add(pix2hv, pix2ihv); + t2 = vec_add(pix2lv, pix2ilv); + + for(i=0;i<h;i++) { + /* + Read unaligned pixels into our vectors. The vectors are as follows: + pix1v: pix1[0]-pix1[15] + pix3v: pix3[0]-pix3[15] pix3iv: pix3[1]-pix3[16] + */ + tv = (vector unsigned char *) pix1; + pix1v = vec_perm(tv[0], tv[1], vec_lvsl(0, pix1)); + + tv = (vector unsigned char *) &pix3[0]; + pix3v = vec_perm(tv[0], tv[1], vec_lvsl(0, &pix3[0])); + + tv = (vector unsigned char *) &pix3[1]; + pix3iv = vec_perm(tv[0], tv[1], vec_lvsl(0, &pix3[1])); + + /* + Note that Altivec does have vec_avg, but this works on vector pairs + and rounds up. We could do avg(avg(a,b),avg(c,d)), but the rounding + would mean that, for example, avg(3,0,0,1) = 2, when it should be 1. + Instead, we have to split the pixel vectors into vectors of shorts, + and do the averaging by hand. + */ + + /* Split the pixel vectors into shorts */ + pix3hv = (vector unsigned short) vec_mergeh(zero, pix3v); + pix3lv = (vector unsigned short) vec_mergel(zero, pix3v); + pix3ihv = (vector unsigned short) vec_mergeh(zero, pix3iv); + pix3ilv = (vector unsigned short) vec_mergel(zero, pix3iv); + + /* Do the averaging on them */ + t3 = vec_add(pix3hv, pix3ihv); + t4 = vec_add(pix3lv, pix3ilv); + + avghv = vec_sr(vec_add(vec_add(t1, t3), two), two); + avglv = vec_sr(vec_add(vec_add(t2, t4), two), two); + + /* Pack the shorts back into a result */ + avgv = vec_pack(avghv, avglv); + + /* Calculate a sum of abs differences vector */ + t5 = vec_sub(vec_max(pix1v, avgv), vec_min(pix1v, avgv)); + + /* Add each 4 pixel group together and put 4 results into sad */ + sad = vec_sum4s(t5, sad); + + pix1 += line_size; + pix3 += line_size; + /* Transfer the calculated values for pix3 into pix2 */ + t1 = t3; + t2 = t4; + } + /* Sum up the four partial sums, and put the result into s */ + sumdiffs = vec_sums((vector signed int) sad, (vector signed int) zero); + sumdiffs = vec_splat(sumdiffs, 3); + vec_ste(sumdiffs, 0, &s); + + return s; +} + +int sad16_altivec(void *v, uint8_t *pix1, uint8_t *pix2, int line_size, int h) +{ + int i; + int s __attribute__((aligned(16))); + const_vector unsigned int zero = (const_vector unsigned int)vec_splat_u32(0); + vector unsigned char perm1, perm2, *pix1v, *pix2v; + vector unsigned char t1, t2, t3,t4, t5; + vector unsigned int sad; + vector signed int sumdiffs; + + sad = (vector unsigned int)vec_splat_u32(0); + + + for(i=0;i<h;i++) { + /* Read potentially unaligned pixels into t1 and t2 */ + perm1 = vec_lvsl(0, pix1); + pix1v = (vector unsigned char *) pix1; + perm2 = vec_lvsl(0, pix2); + pix2v = (vector unsigned char *) pix2; + t1 = vec_perm(pix1v[0], pix1v[1], perm1); + t2 = vec_perm(pix2v[0], pix2v[1], perm2); + + /* Calculate a sum of abs differences vector */ + t3 = vec_max(t1, t2); + t4 = vec_min(t1, t2); + t5 = vec_sub(t3, t4); + + /* Add each 4 pixel group together and put 4 results into sad */ + sad = vec_sum4s(t5, sad); + + pix1 += line_size; + pix2 += line_size; + } + + /* Sum up the four partial sums, and put the result into s */ + sumdiffs = vec_sums((vector signed int) sad, (vector signed int) zero); + sumdiffs = vec_splat(sumdiffs, 3); + vec_ste(sumdiffs, 0, &s); + + return s; +} + +int sad8_altivec(void *v, uint8_t *pix1, uint8_t *pix2, int line_size, int h) +{ + int i; + int s __attribute__((aligned(16))); + const_vector unsigned int zero = (const_vector unsigned int)vec_splat_u32(0); + vector unsigned char perm1, perm2, permclear, *pix1v, *pix2v; + vector unsigned char t1, t2, t3,t4, t5; + vector unsigned int sad; + vector signed int sumdiffs; + + sad = (vector unsigned int)vec_splat_u32(0); + + permclear = (vector unsigned char)AVV(255,255,255,255,255,255,255,255,0,0,0,0,0,0,0,0); + + for(i=0;i<h;i++) { + /* Read potentially unaligned pixels into t1 and t2 + Since we're reading 16 pixels, and actually only want 8, + mask out the last 8 pixels. The 0s don't change the sum. */ + perm1 = vec_lvsl(0, pix1); + pix1v = (vector unsigned char *) pix1; + perm2 = vec_lvsl(0, pix2); + pix2v = (vector unsigned char *) pix2; + t1 = vec_and(vec_perm(pix1v[0], pix1v[1], perm1), permclear); + t2 = vec_and(vec_perm(pix2v[0], pix2v[1], perm2), permclear); + + /* Calculate a sum of abs differences vector */ + t3 = vec_max(t1, t2); + t4 = vec_min(t1, t2); + t5 = vec_sub(t3, t4); + + /* Add each 4 pixel group together and put 4 results into sad */ + sad = vec_sum4s(t5, sad); + + pix1 += line_size; + pix2 += line_size; + } + + /* Sum up the four partial sums, and put the result into s */ + sumdiffs = vec_sums((vector signed int) sad, (vector signed int) zero); + sumdiffs = vec_splat(sumdiffs, 3); + vec_ste(sumdiffs, 0, &s); + + return s; +} + +int pix_norm1_altivec(uint8_t *pix, int line_size) +{ + int i; + int s __attribute__((aligned(16))); + const_vector unsigned int zero = (const_vector unsigned int)vec_splat_u32(0); + vector unsigned char *tv; + vector unsigned char pixv; + vector unsigned int sv; + vector signed int sum; + + sv = (vector unsigned int)vec_splat_u32(0); + + s = 0; + for (i = 0; i < 16; i++) { + /* Read in the potentially unaligned pixels */ + tv = (vector unsigned char *) pix; + pixv = vec_perm(tv[0], tv[1], vec_lvsl(0, pix)); + + /* Square the values, and add them to our sum */ + sv = vec_msum(pixv, pixv, sv); + + pix += line_size; + } + /* Sum up the four partial sums, and put the result into s */ + sum = vec_sums((vector signed int) sv, (vector signed int) zero); + sum = vec_splat(sum, 3); + vec_ste(sum, 0, &s); + + return s; +} + +/** + * Sum of Squared Errors for a 8x8 block. + * AltiVec-enhanced. + * It's the sad8_altivec code above w/ squaring added. + */ +int sse8_altivec(void *v, uint8_t *pix1, uint8_t *pix2, int line_size, int h) +{ + int i; + int s __attribute__((aligned(16))); + const_vector unsigned int zero = (const_vector unsigned int)vec_splat_u32(0); + vector unsigned char perm1, perm2, permclear, *pix1v, *pix2v; + vector unsigned char t1, t2, t3,t4, t5; + vector unsigned int sum; + vector signed int sumsqr; + + sum = (vector unsigned int)vec_splat_u32(0); + + permclear = (vector unsigned char)AVV(255,255,255,255,255,255,255,255,0,0,0,0,0,0,0,0); + + + for(i=0;i<h;i++) { + /* Read potentially unaligned pixels into t1 and t2 + Since we're reading 16 pixels, and actually only want 8, + mask out the last 8 pixels. The 0s don't change the sum. */ + perm1 = vec_lvsl(0, pix1); + pix1v = (vector unsigned char *) pix1; + perm2 = vec_lvsl(0, pix2); + pix2v = (vector unsigned char *) pix2; + t1 = vec_and(vec_perm(pix1v[0], pix1v[1], perm1), permclear); + t2 = vec_and(vec_perm(pix2v[0], pix2v[1], perm2), permclear); + + /* + Since we want to use unsigned chars, we can take advantage + of the fact that abs(a-b)^2 = (a-b)^2. + */ + + /* Calculate abs differences vector */ + t3 = vec_max(t1, t2); + t4 = vec_min(t1, t2); + t5 = vec_sub(t3, t4); + + /* Square the values and add them to our sum */ + sum = vec_msum(t5, t5, sum); + + pix1 += line_size; + pix2 += line_size; + } + + /* Sum up the four partial sums, and put the result into s */ + sumsqr = vec_sums((vector signed int) sum, (vector signed int) zero); + sumsqr = vec_splat(sumsqr, 3); + vec_ste(sumsqr, 0, &s); + + return s; +} + +/** + * Sum of Squared Errors for a 16x16 block. + * AltiVec-enhanced. + * It's the sad16_altivec code above w/ squaring added. + */ +int sse16_altivec(void *v, uint8_t *pix1, uint8_t *pix2, int line_size, int h) +{ + int i; + int s __attribute__((aligned(16))); + const_vector unsigned int zero = (const_vector unsigned int)vec_splat_u32(0); + vector unsigned char perm1, perm2, *pix1v, *pix2v; + vector unsigned char t1, t2, t3,t4, t5; + vector unsigned int sum; + vector signed int sumsqr; + + sum = (vector unsigned int)vec_splat_u32(0); + + for(i=0;i<h;i++) { + /* Read potentially unaligned pixels into t1 and t2 */ + perm1 = vec_lvsl(0, pix1); + pix1v = (vector unsigned char *) pix1; + perm2 = vec_lvsl(0, pix2); + pix2v = (vector unsigned char *) pix2; + t1 = vec_perm(pix1v[0], pix1v[1], perm1); + t2 = vec_perm(pix2v[0], pix2v[1], perm2); + + /* + Since we want to use unsigned chars, we can take advantage + of the fact that abs(a-b)^2 = (a-b)^2. + */ + + /* Calculate abs differences vector */ + t3 = vec_max(t1, t2); + t4 = vec_min(t1, t2); + t5 = vec_sub(t3, t4); + + /* Square the values and add them to our sum */ + sum = vec_msum(t5, t5, sum); + + pix1 += line_size; + pix2 += line_size; + } + + /* Sum up the four partial sums, and put the result into s */ + sumsqr = vec_sums((vector signed int) sum, (vector signed int) zero); + sumsqr = vec_splat(sumsqr, 3); + vec_ste(sumsqr, 0, &s); + + return s; +} + +int pix_sum_altivec(uint8_t * pix, int line_size) +{ + const_vector unsigned int zero = (const_vector unsigned int)vec_splat_u32(0); + vector unsigned char perm, *pixv; + vector unsigned char t1; + vector unsigned int sad; + vector signed int sumdiffs; + + int i; + int s __attribute__((aligned(16))); + + sad = (vector unsigned int)vec_splat_u32(0); + + for (i = 0; i < 16; i++) { + /* Read the potentially unaligned 16 pixels into t1 */ + perm = vec_lvsl(0, pix); + pixv = (vector unsigned char *) pix; + t1 = vec_perm(pixv[0], pixv[1], perm); + + /* Add each 4 pixel group together and put 4 results into sad */ + sad = vec_sum4s(t1, sad); + + pix += line_size; + } + + /* Sum up the four partial sums, and put the result into s */ + sumdiffs = vec_sums((vector signed int) sad, (vector signed int) zero); + sumdiffs = vec_splat(sumdiffs, 3); + vec_ste(sumdiffs, 0, &s); + + return s; +} + +void get_pixels_altivec(DCTELEM *restrict block, const uint8_t *pixels, int line_size) +{ + int i; + vector unsigned char perm, bytes, *pixv; + const_vector unsigned char zero = (const_vector unsigned char)vec_splat_u8(0); + vector signed short shorts; + + for(i=0;i<8;i++) + { + // Read potentially unaligned pixels. + // We're reading 16 pixels, and actually only want 8, + // but we simply ignore the extras. + perm = vec_lvsl(0, pixels); + pixv = (vector unsigned char *) pixels; + bytes = vec_perm(pixv[0], pixv[1], perm); + + // convert the bytes into shorts + shorts = (vector signed short)vec_mergeh(zero, bytes); + + // save the data to the block, we assume the block is 16-byte aligned + vec_st(shorts, i*16, (vector signed short*)block); + + pixels += line_size; + } +} + +void diff_pixels_altivec(DCTELEM *restrict block, const uint8_t *s1, + const uint8_t *s2, int stride) +{ + int i; + vector unsigned char perm, bytes, *pixv; + const_vector unsigned char zero = (const_vector unsigned char)vec_splat_u8(0); + vector signed short shorts1, shorts2; + + for(i=0;i<4;i++) + { + // Read potentially unaligned pixels + // We're reading 16 pixels, and actually only want 8, + // but we simply ignore the extras. + perm = vec_lvsl(0, s1); + pixv = (vector unsigned char *) s1; + bytes = vec_perm(pixv[0], pixv[1], perm); + + // convert the bytes into shorts + shorts1 = (vector signed short)vec_mergeh(zero, bytes); + + // Do the same for the second block of pixels + perm = vec_lvsl(0, s2); + pixv = (vector unsigned char *) s2; + bytes = vec_perm(pixv[0], pixv[1], perm); + + // convert the bytes into shorts + shorts2 = (vector signed short)vec_mergeh(zero, bytes); + + // Do the subtraction + shorts1 = vec_sub(shorts1, shorts2); + + // save the data to the block, we assume the block is 16-byte aligned + vec_st(shorts1, 0, (vector signed short*)block); + + s1 += stride; + s2 += stride; + block += 8; + + + // The code below is a copy of the code above... This is a manual + // unroll. + + // Read potentially unaligned pixels + // We're reading 16 pixels, and actually only want 8, + // but we simply ignore the extras. + perm = vec_lvsl(0, s1); + pixv = (vector unsigned char *) s1; + bytes = vec_perm(pixv[0], pixv[1], perm); + + // convert the bytes into shorts + shorts1 = (vector signed short)vec_mergeh(zero, bytes); + + // Do the same for the second block of pixels + perm = vec_lvsl(0, s2); + pixv = (vector unsigned char *) s2; + bytes = vec_perm(pixv[0], pixv[1], perm); + + // convert the bytes into shorts + shorts2 = (vector signed short)vec_mergeh(zero, bytes); + + // Do the subtraction + shorts1 = vec_sub(shorts1, shorts2); + + // save the data to the block, we assume the block is 16-byte aligned + vec_st(shorts1, 0, (vector signed short*)block); + + s1 += stride; + s2 += stride; + block += 8; + } +} + +void add_bytes_altivec(uint8_t *dst, uint8_t *src, int w) { + register int i; + register vector unsigned char vdst, vsrc; + + /* dst and src are 16 bytes-aligned (guaranteed) */ + for(i = 0 ; (i + 15) < w ; i+=16) + { + vdst = vec_ld(i, (unsigned char*)dst); + vsrc = vec_ld(i, (unsigned char*)src); + vdst = vec_add(vsrc, vdst); + vec_st(vdst, i, (unsigned char*)dst); + } + /* if w is not a multiple of 16 */ + for (; (i < w) ; i++) + { + dst[i] = src[i]; + } +} + +/* next one assumes that ((line_size % 16) == 0) */ +void put_pixels16_altivec(uint8_t *block, const uint8_t *pixels, int line_size, int h) +{ +POWERPC_PERF_DECLARE(altivec_put_pixels16_num, 1); + register vector unsigned char pixelsv1, pixelsv2; + register vector unsigned char pixelsv1B, pixelsv2B; + register vector unsigned char pixelsv1C, pixelsv2C; + register vector unsigned char pixelsv1D, pixelsv2D; + + register vector unsigned char perm = vec_lvsl(0, pixels); + int i; + register int line_size_2 = line_size << 1; + register int line_size_3 = line_size + line_size_2; + register int line_size_4 = line_size << 2; + +POWERPC_PERF_START_COUNT(altivec_put_pixels16_num, 1); +// hand-unrolling the loop by 4 gains about 15% +// mininum execution time goes from 74 to 60 cycles +// it's faster than -funroll-loops, but using +// -funroll-loops w/ this is bad - 74 cycles again. +// all this is on a 7450, tuning for the 7450 +#if 0 + for(i=0; i<h; i++) { + pixelsv1 = vec_ld(0, (unsigned char*)pixels); + pixelsv2 = vec_ld(16, (unsigned char*)pixels); + vec_st(vec_perm(pixelsv1, pixelsv2, perm), + 0, (unsigned char*)block); + pixels+=line_size; + block +=line_size; + } +#else + for(i=0; i<h; i+=4) { + pixelsv1 = vec_ld(0, (unsigned char*)pixels); + pixelsv2 = vec_ld(15, (unsigned char*)pixels); + pixelsv1B = vec_ld(line_size, (unsigned char*)pixels); + pixelsv2B = vec_ld(15 + line_size, (unsigned char*)pixels); + pixelsv1C = vec_ld(line_size_2, (unsigned char*)pixels); + pixelsv2C = vec_ld(15 + line_size_2, (unsigned char*)pixels); + pixelsv1D = vec_ld(line_size_3, (unsigned char*)pixels); + pixelsv2D = vec_ld(15 + line_size_3, (unsigned char*)pixels); + vec_st(vec_perm(pixelsv1, pixelsv2, perm), + 0, (unsigned char*)block); + vec_st(vec_perm(pixelsv1B, pixelsv2B, perm), + line_size, (unsigned char*)block); + vec_st(vec_perm(pixelsv1C, pixelsv2C, perm), + line_size_2, (unsigned char*)block); + vec_st(vec_perm(pixelsv1D, pixelsv2D, perm), + line_size_3, (unsigned char*)block); + pixels+=line_size_4; + block +=line_size_4; + } +#endif +POWERPC_PERF_STOP_COUNT(altivec_put_pixels16_num, 1); +} + +/* next one assumes that ((line_size % 16) == 0) */ +#define op_avg(a,b) a = ( ((a)|(b)) - ((((a)^(b))&0xFEFEFEFEUL)>>1) ) +void avg_pixels16_altivec(uint8_t *block, const uint8_t *pixels, int line_size, int h) +{ +POWERPC_PERF_DECLARE(altivec_avg_pixels16_num, 1); + register vector unsigned char pixelsv1, pixelsv2, pixelsv, blockv; + register vector unsigned char perm = vec_lvsl(0, pixels); + int i; + +POWERPC_PERF_START_COUNT(altivec_avg_pixels16_num, 1); + + for(i=0; i<h; i++) { + pixelsv1 = vec_ld(0, (unsigned char*)pixels); + pixelsv2 = vec_ld(16, (unsigned char*)pixels); + blockv = vec_ld(0, block); + pixelsv = vec_perm(pixelsv1, pixelsv2, perm); + blockv = vec_avg(blockv,pixelsv); + vec_st(blockv, 0, (unsigned char*)block); + pixels+=line_size; + block +=line_size; + } + +POWERPC_PERF_STOP_COUNT(altivec_avg_pixels16_num, 1); +} + +/* next one assumes that ((line_size % 8) == 0) */ +void avg_pixels8_altivec(uint8_t * block, const uint8_t * pixels, int line_size, int h) +{ +POWERPC_PERF_DECLARE(altivec_avg_pixels8_num, 1); + register vector unsigned char pixelsv1, pixelsv2, pixelsv, blockv; + int i; + +POWERPC_PERF_START_COUNT(altivec_avg_pixels8_num, 1); + + for (i = 0; i < h; i++) { + /* + block is 8 bytes-aligned, so we're either in the + left block (16 bytes-aligned) or in the right block (not) + */ + int rightside = ((unsigned long)block & 0x0000000F); + + blockv = vec_ld(0, block); + pixelsv1 = vec_ld(0, (unsigned char*)pixels); + pixelsv2 = vec_ld(16, (unsigned char*)pixels); + pixelsv = vec_perm(pixelsv1, pixelsv2, vec_lvsl(0, pixels)); + + if (rightside) + { + pixelsv = vec_perm(blockv, pixelsv, vcprm(0,1,s0,s1)); + } + else + { + pixelsv = vec_perm(blockv, pixelsv, vcprm(s0,s1,2,3)); + } + + blockv = vec_avg(blockv, pixelsv); + + vec_st(blockv, 0, block); + + pixels += line_size; + block += line_size; + } + +POWERPC_PERF_STOP_COUNT(altivec_avg_pixels8_num, 1); +} + +/* next one assumes that ((line_size % 8) == 0) */ +void put_pixels8_xy2_altivec(uint8_t *block, const uint8_t *pixels, int line_size, int h) +{ +POWERPC_PERF_DECLARE(altivec_put_pixels8_xy2_num, 1); + register int i; + register vector unsigned char + pixelsv1, pixelsv2, + pixelsavg; + register vector unsigned char + blockv, temp1, temp2; + register vector unsigned short + pixelssum1, pixelssum2, temp3; + register const_vector unsigned char vczero = (const_vector unsigned char)vec_splat_u8(0); + register const_vector unsigned short vctwo = (const_vector unsigned short)vec_splat_u16(2); + + temp1 = vec_ld(0, pixels); + temp2 = vec_ld(16, pixels); + pixelsv1 = vec_perm(temp1, temp2, vec_lvsl(0, pixels)); + if ((((unsigned long)pixels) & 0x0000000F) == 0x0000000F) + { + pixelsv2 = temp2; + } + else + { + pixelsv2 = vec_perm(temp1, temp2, vec_lvsl(1, pixels)); + } + pixelsv1 = vec_mergeh(vczero, pixelsv1); + pixelsv2 = vec_mergeh(vczero, pixelsv2); + pixelssum1 = vec_add((vector unsigned short)pixelsv1, + (vector unsigned short)pixelsv2); + pixelssum1 = vec_add(pixelssum1, vctwo); + +POWERPC_PERF_START_COUNT(altivec_put_pixels8_xy2_num, 1); + for (i = 0; i < h ; i++) { + int rightside = ((unsigned long)block & 0x0000000F); + blockv = vec_ld(0, block); + + temp1 = vec_ld(line_size, pixels); + temp2 = vec_ld(line_size + 16, pixels); + pixelsv1 = vec_perm(temp1, temp2, vec_lvsl(line_size, pixels)); + if (((((unsigned long)pixels) + line_size) & 0x0000000F) == 0x0000000F) + { + pixelsv2 = temp2; + } + else + { + pixelsv2 = vec_perm(temp1, temp2, vec_lvsl(line_size + 1, pixels)); + } + + pixelsv1 = vec_mergeh(vczero, pixelsv1); + pixelsv2 = vec_mergeh(vczero, pixelsv2); + pixelssum2 = vec_add((vector unsigned short)pixelsv1, + (vector unsigned short)pixelsv2); + temp3 = vec_add(pixelssum1, pixelssum2); + temp3 = vec_sra(temp3, vctwo); + pixelssum1 = vec_add(pixelssum2, vctwo); + pixelsavg = vec_packsu(temp3, (vector unsigned short) vczero); + + if (rightside) + { + blockv = vec_perm(blockv, pixelsavg, vcprm(0, 1, s0, s1)); + } + else + { + blockv = vec_perm(blockv, pixelsavg, vcprm(s0, s1, 2, 3)); + } + + vec_st(blockv, 0, block); + + block += line_size; + pixels += line_size; + } + +POWERPC_PERF_STOP_COUNT(altivec_put_pixels8_xy2_num, 1); +} + +/* next one assumes that ((line_size % 8) == 0) */ +void put_no_rnd_pixels8_xy2_altivec(uint8_t *block, const uint8_t *pixels, int line_size, int h) +{ +POWERPC_PERF_DECLARE(altivec_put_no_rnd_pixels8_xy2_num, 1); + register int i; + register vector unsigned char + pixelsv1, pixelsv2, + pixelsavg; + register vector unsigned char + blockv, temp1, temp2; + register vector unsigned short + pixelssum1, pixelssum2, temp3; + register const_vector unsigned char vczero = (const_vector unsigned char)vec_splat_u8(0); + register const_vector unsigned short vcone = (const_vector unsigned short)vec_splat_u16(1); + register const_vector unsigned short vctwo = (const_vector unsigned short)vec_splat_u16(2); + + temp1 = vec_ld(0, pixels); + temp2 = vec_ld(16, pixels); + pixelsv1 = vec_perm(temp1, temp2, vec_lvsl(0, pixels)); + if ((((unsigned long)pixels) & 0x0000000F) == 0x0000000F) + { + pixelsv2 = temp2; + } + else + { + pixelsv2 = vec_perm(temp1, temp2, vec_lvsl(1, pixels)); + } + pixelsv1 = vec_mergeh(vczero, pixelsv1); + pixelsv2 = vec_mergeh(vczero, pixelsv2); + pixelssum1 = vec_add((vector unsigned short)pixelsv1, + (vector unsigned short)pixelsv2); + pixelssum1 = vec_add(pixelssum1, vcone); + +POWERPC_PERF_START_COUNT(altivec_put_no_rnd_pixels8_xy2_num, 1); + for (i = 0; i < h ; i++) { + int rightside = ((unsigned long)block & 0x0000000F); + blockv = vec_ld(0, block); + + temp1 = vec_ld(line_size, pixels); + temp2 = vec_ld(line_size + 16, pixels); + pixelsv1 = vec_perm(temp1, temp2, vec_lvsl(line_size, pixels)); + if (((((unsigned long)pixels) + line_size) & 0x0000000F) == 0x0000000F) + { + pixelsv2 = temp2; + } + else + { + pixelsv2 = vec_perm(temp1, temp2, vec_lvsl(line_size + 1, pixels)); + } + + pixelsv1 = vec_mergeh(vczero, pixelsv1); + pixelsv2 = vec_mergeh(vczero, pixelsv2); + pixelssum2 = vec_add((vector unsigned short)pixelsv1, + (vector unsigned short)pixelsv2); + temp3 = vec_add(pixelssum1, pixelssum2); + temp3 = vec_sra(temp3, vctwo); + pixelssum1 = vec_add(pixelssum2, vcone); + pixelsavg = vec_packsu(temp3, (vector unsigned short) vczero); + + if (rightside) + { + blockv = vec_perm(blockv, pixelsavg, vcprm(0, 1, s0, s1)); + } + else + { + blockv = vec_perm(blockv, pixelsavg, vcprm(s0, s1, 2, 3)); + } + + vec_st(blockv, 0, block); + + block += line_size; + pixels += line_size; + } + +POWERPC_PERF_STOP_COUNT(altivec_put_no_rnd_pixels8_xy2_num, 1); +} + +/* next one assumes that ((line_size % 16) == 0) */ +void put_pixels16_xy2_altivec(uint8_t * block, const uint8_t * pixels, int line_size, int h) +{ +POWERPC_PERF_DECLARE(altivec_put_pixels16_xy2_num, 1); + register int i; + register vector unsigned char + pixelsv1, pixelsv2, pixelsv3, pixelsv4; + register vector unsigned char + blockv, temp1, temp2; + register vector unsigned short + pixelssum1, pixelssum2, temp3, + pixelssum3, pixelssum4, temp4; + register const_vector unsigned char vczero = (const_vector unsigned char)vec_splat_u8(0); + register const_vector unsigned short vctwo = (const_vector unsigned short)vec_splat_u16(2); + +POWERPC_PERF_START_COUNT(altivec_put_pixels16_xy2_num, 1); + + temp1 = vec_ld(0, pixels); + temp2 = vec_ld(16, pixels); + pixelsv1 = vec_perm(temp1, temp2, vec_lvsl(0, pixels)); + if ((((unsigned long)pixels) & 0x0000000F) == 0x0000000F) + { + pixelsv2 = temp2; + } + else + { + pixelsv2 = vec_perm(temp1, temp2, vec_lvsl(1, pixels)); + } + pixelsv3 = vec_mergel(vczero, pixelsv1); + pixelsv4 = vec_mergel(vczero, pixelsv2); + pixelsv1 = vec_mergeh(vczero, pixelsv1); + pixelsv2 = vec_mergeh(vczero, pixelsv2); + pixelssum3 = vec_add((vector unsigned short)pixelsv3, + (vector unsigned short)pixelsv4); + pixelssum3 = vec_add(pixelssum3, vctwo); + pixelssum1 = vec_add((vector unsigned short)pixelsv1, + (vector unsigned short)pixelsv2); + pixelssum1 = vec_add(pixelssum1, vctwo); + + for (i = 0; i < h ; i++) { + blockv = vec_ld(0, block); + + temp1 = vec_ld(line_size, pixels); + temp2 = vec_ld(line_size + 16, pixels); + pixelsv1 = vec_perm(temp1, temp2, vec_lvsl(line_size, pixels)); + if (((((unsigned long)pixels) + line_size) & 0x0000000F) == 0x0000000F) + { + pixelsv2 = temp2; + } + else + { + pixelsv2 = vec_perm(temp1, temp2, vec_lvsl(line_size + 1, pixels)); + } + + pixelsv3 = vec_mergel(vczero, pixelsv1); + pixelsv4 = vec_mergel(vczero, pixelsv2); + pixelsv1 = vec_mergeh(vczero, pixelsv1); + pixelsv2 = vec_mergeh(vczero, pixelsv2); + + pixelssum4 = vec_add((vector unsigned short)pixelsv3, + (vector unsigned short)pixelsv4); + pixelssum2 = vec_add((vector unsigned short)pixelsv1, + (vector unsigned short)pixelsv2); + temp4 = vec_add(pixelssum3, pixelssum4); + temp4 = vec_sra(temp4, vctwo); + temp3 = vec_add(pixelssum1, pixelssum2); + temp3 = vec_sra(temp3, vctwo); + + pixelssum3 = vec_add(pixelssum4, vctwo); + pixelssum1 = vec_add(pixelssum2, vctwo); + + blockv = vec_packsu(temp3, temp4); + + vec_st(blockv, 0, block); + + block += line_size; + pixels += line_size; + } + +POWERPC_PERF_STOP_COUNT(altivec_put_pixels16_xy2_num, 1); +} + +/* next one assumes that ((line_size % 16) == 0) */ +void put_no_rnd_pixels16_xy2_altivec(uint8_t * block, const uint8_t * pixels, int line_size, int h) +{ +POWERPC_PERF_DECLARE(altivec_put_no_rnd_pixels16_xy2_num, 1); + register int i; + register vector unsigned char + pixelsv1, pixelsv2, pixelsv3, pixelsv4; + register vector unsigned char + blockv, temp1, temp2; + register vector unsigned short + pixelssum1, pixelssum2, temp3, + pixelssum3, pixelssum4, temp4; + register const_vector unsigned char vczero = (const_vector unsigned char)vec_splat_u8(0); + register const_vector unsigned short vcone = (const_vector unsigned short)vec_splat_u16(1); + register const_vector unsigned short vctwo = (const_vector unsigned short)vec_splat_u16(2); + +POWERPC_PERF_START_COUNT(altivec_put_no_rnd_pixels16_xy2_num, 1); + + temp1 = vec_ld(0, pixels); + temp2 = vec_ld(16, pixels); + pixelsv1 = vec_perm(temp1, temp2, vec_lvsl(0, pixels)); + if ((((unsigned long)pixels) & 0x0000000F) == 0x0000000F) + { + pixelsv2 = temp2; + } + else + { + pixelsv2 = vec_perm(temp1, temp2, vec_lvsl(1, pixels)); + } + pixelsv3 = vec_mergel(vczero, pixelsv1); + pixelsv4 = vec_mergel(vczero, pixelsv2); + pixelsv1 = vec_mergeh(vczero, pixelsv1); + pixelsv2 = vec_mergeh(vczero, pixelsv2); + pixelssum3 = vec_add((vector unsigned short)pixelsv3, + (vector unsigned short)pixelsv4); + pixelssum3 = vec_add(pixelssum3, vcone); + pixelssum1 = vec_add((vector unsigned short)pixelsv1, + (vector unsigned short)pixelsv2); + pixelssum1 = vec_add(pixelssum1, vcone); + + for (i = 0; i < h ; i++) { + blockv = vec_ld(0, block); + + temp1 = vec_ld(line_size, pixels); + temp2 = vec_ld(line_size + 16, pixels); + pixelsv1 = vec_perm(temp1, temp2, vec_lvsl(line_size, pixels)); + if (((((unsigned long)pixels) + line_size) & 0x0000000F) == 0x0000000F) + { + pixelsv2 = temp2; + } + else + { + pixelsv2 = vec_perm(temp1, temp2, vec_lvsl(line_size + 1, pixels)); + } + + pixelsv3 = vec_mergel(vczero, pixelsv1); + pixelsv4 = vec_mergel(vczero, pixelsv2); + pixelsv1 = vec_mergeh(vczero, pixelsv1); + pixelsv2 = vec_mergeh(vczero, pixelsv2); + + pixelssum4 = vec_add((vector unsigned short)pixelsv3, + (vector unsigned short)pixelsv4); + pixelssum2 = vec_add((vector unsigned short)pixelsv1, + (vector unsigned short)pixelsv2); + temp4 = vec_add(pixelssum3, pixelssum4); + temp4 = vec_sra(temp4, vctwo); + temp3 = vec_add(pixelssum1, pixelssum2); + temp3 = vec_sra(temp3, vctwo); + + pixelssum3 = vec_add(pixelssum4, vcone); + pixelssum1 = vec_add(pixelssum2, vcone); + + blockv = vec_packsu(temp3, temp4); + + vec_st(blockv, 0, block); + + block += line_size; + pixels += line_size; + } + +POWERPC_PERF_STOP_COUNT(altivec_put_no_rnd_pixels16_xy2_num, 1); +} + +int hadamard8_diff8x8_altivec(/*MpegEncContext*/ void *s, uint8_t *dst, uint8_t *src, int stride, int h){ +POWERPC_PERF_DECLARE(altivec_hadamard8_diff8x8_num, 1); + int sum; + register const_vector unsigned char vzero = + (const_vector unsigned char)vec_splat_u8(0); + register vector signed short temp0, temp1, temp2, temp3, temp4, + temp5, temp6, temp7; +POWERPC_PERF_START_COUNT(altivec_hadamard8_diff8x8_num, 1); + { + register const_vector signed short vprod1 =(const_vector signed short) + AVV( 1,-1, 1,-1, 1,-1, 1,-1); + register const_vector signed short vprod2 =(const_vector signed short) + AVV( 1, 1,-1,-1, 1, 1,-1,-1); + register const_vector signed short vprod3 =(const_vector signed short) + AVV( 1, 1, 1, 1,-1,-1,-1,-1); + register const_vector unsigned char perm1 = (const_vector unsigned char) + AVV(0x02, 0x03, 0x00, 0x01, 0x06, 0x07, 0x04, 0x05, + 0x0A, 0x0B, 0x08, 0x09, 0x0E, 0x0F, 0x0C, 0x0D); + register const_vector unsigned char perm2 = (const_vector unsigned char) + AVV(0x04, 0x05, 0x06, 0x07, 0x00, 0x01, 0x02, 0x03, + 0x0C, 0x0D, 0x0E, 0x0F, 0x08, 0x09, 0x0A, 0x0B); + register const_vector unsigned char perm3 = (const_vector unsigned char) + AVV(0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F, + 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07); + +#define ONEITERBUTTERFLY(i, res) \ + { \ + register vector unsigned char src1, src2, srcO; \ + register vector unsigned char dst1, dst2, dstO; \ + register vector signed short srcV, dstV; \ + register vector signed short but0, but1, but2, op1, op2, op3; \ + src1 = vec_ld(stride * i, src); \ + src2 = vec_ld((stride * i) + 15, src); \ + srcO = vec_perm(src1, src2, vec_lvsl(stride * i, src)); \ + dst1 = vec_ld(stride * i, dst); \ + dst2 = vec_ld((stride * i) + 15, dst); \ + dstO = vec_perm(dst1, dst2, vec_lvsl(stride * i, dst)); \ + /* promote the unsigned chars to signed shorts */ \ + /* we're in the 8x8 function, we only care for the first 8 */ \ + srcV = \ + (vector signed short)vec_mergeh((vector signed char)vzero, \ + (vector signed char)srcO); \ + dstV = \ + (vector signed short)vec_mergeh((vector signed char)vzero, \ + (vector signed char)dstO); \ + /* substractions inside the first butterfly */ \ + but0 = vec_sub(srcV, dstV); \ + op1 = vec_perm(but0, but0, perm1); \ + but1 = vec_mladd(but0, vprod1, op1); \ + op2 = vec_perm(but1, but1, perm2); \ + but2 = vec_mladd(but1, vprod2, op2); \ + op3 = vec_perm(but2, but2, perm3); \ + res = vec_mladd(but2, vprod3, op3); \ + } + ONEITERBUTTERFLY(0, temp0); + ONEITERBUTTERFLY(1, temp1); + ONEITERBUTTERFLY(2, temp2); + ONEITERBUTTERFLY(3, temp3); + ONEITERBUTTERFLY(4, temp4); + ONEITERBUTTERFLY(5, temp5); + ONEITERBUTTERFLY(6, temp6); + ONEITERBUTTERFLY(7, temp7); + } +#undef ONEITERBUTTERFLY + { + register vector signed int vsum; + register vector signed short line0 = vec_add(temp0, temp1); + register vector signed short line1 = vec_sub(temp0, temp1); + register vector signed short line2 = vec_add(temp2, temp3); + register vector signed short line3 = vec_sub(temp2, temp3); + register vector signed short line4 = vec_add(temp4, temp5); + register vector signed short line5 = vec_sub(temp4, temp5); + register vector signed short line6 = vec_add(temp6, temp7); + register vector signed short line7 = vec_sub(temp6, temp7); + + register vector signed short line0B = vec_add(line0, line2); + register vector signed short line2B = vec_sub(line0, line2); + register vector signed short line1B = vec_add(line1, line3); + register vector signed short line3B = vec_sub(line1, line3); + register vector signed short line4B = vec_add(line4, line6); + register vector signed short line6B = vec_sub(line4, line6); + register vector signed short line5B = vec_add(line5, line7); + register vector signed short line7B = vec_sub(line5, line7); + + register vector signed short line0C = vec_add(line0B, line4B); + register vector signed short line4C = vec_sub(line0B, line4B); + register vector signed short line1C = vec_add(line1B, line5B); + register vector signed short line5C = vec_sub(line1B, line5B); + register vector signed short line2C = vec_add(line2B, line6B); + register vector signed short line6C = vec_sub(line2B, line6B); + register vector signed short line3C = vec_add(line3B, line7B); + register vector signed short line7C = vec_sub(line3B, line7B); + + vsum = vec_sum4s(vec_abs(line0C), vec_splat_s32(0)); + vsum = vec_sum4s(vec_abs(line1C), vsum); + vsum = vec_sum4s(vec_abs(line2C), vsum); + vsum = vec_sum4s(vec_abs(line3C), vsum); + vsum = vec_sum4s(vec_abs(line4C), vsum); + vsum = vec_sum4s(vec_abs(line5C), vsum); + vsum = vec_sum4s(vec_abs(line6C), vsum); + vsum = vec_sum4s(vec_abs(line7C), vsum); + vsum = vec_sums(vsum, (vector signed int)vzero); + vsum = vec_splat(vsum, 3); + vec_ste(vsum, 0, &sum); + } +POWERPC_PERF_STOP_COUNT(altivec_hadamard8_diff8x8_num, 1); + return sum; +} + +/* + 16x8 works with 16 elements ; it allows to avoid replicating + loads, and give the compiler more rooms for scheduling. + It's only used from inside hadamard8_diff16_altivec. + + Unfortunately, it seems gcc-3.3 is a bit dumb, and + the compiled code has a LOT of spill code, it seems + gcc (unlike xlc) cannot keep everything in registers + by itself. The following code include hand-made + registers allocation. It's not clean, but on + a 7450 the resulting code is much faster (best case + fall from 700+ cycles to 550). + + xlc doesn't add spill code, but it doesn't know how to + schedule for the 7450, and its code isn't much faster than + gcc-3.3 on the 7450 (but uses 25% less instructions...) + + On the 970, the hand-made RA is still a win (arount 690 + vs. around 780), but xlc goes to around 660 on the + regular C code... +*/ + +static int hadamard8_diff16x8_altivec(/*MpegEncContext*/ void *s, uint8_t *dst, uint8_t *src, int stride, int h) { + int sum; + register vector signed short + temp0 REG_v(v0), + temp1 REG_v(v1), + temp2 REG_v(v2), + temp3 REG_v(v3), + temp4 REG_v(v4), + temp5 REG_v(v5), + temp6 REG_v(v6), + temp7 REG_v(v7); + register vector signed short + temp0S REG_v(v8), + temp1S REG_v(v9), + temp2S REG_v(v10), + temp3S REG_v(v11), + temp4S REG_v(v12), + temp5S REG_v(v13), + temp6S REG_v(v14), + temp7S REG_v(v15); + register const_vector unsigned char vzero REG_v(v31)= + (const_vector unsigned char)vec_splat_u8(0); + { + register const_vector signed short vprod1 REG_v(v16)= + (const_vector signed short)AVV( 1,-1, 1,-1, 1,-1, 1,-1); + register const_vector signed short vprod2 REG_v(v17)= + (const_vector signed short)AVV( 1, 1,-1,-1, 1, 1,-1,-1); + register const_vector signed short vprod3 REG_v(v18)= + (const_vector signed short)AVV( 1, 1, 1, 1,-1,-1,-1,-1); + register const_vector unsigned char perm1 REG_v(v19)= + (const_vector unsigned char) + AVV(0x02, 0x03, 0x00, 0x01, 0x06, 0x07, 0x04, 0x05, + 0x0A, 0x0B, 0x08, 0x09, 0x0E, 0x0F, 0x0C, 0x0D); + register const_vector unsigned char perm2 REG_v(v20)= + (const_vector unsigned char) + AVV(0x04, 0x05, 0x06, 0x07, 0x00, 0x01, 0x02, 0x03, + 0x0C, 0x0D, 0x0E, 0x0F, 0x08, 0x09, 0x0A, 0x0B); + register const_vector unsigned char perm3 REG_v(v21)= + (const_vector unsigned char) + AVV(0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F, + 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07); + +#define ONEITERBUTTERFLY(i, res1, res2) \ + { \ + register vector unsigned char src1 REG_v(v22), \ + src2 REG_v(v23), \ + dst1 REG_v(v24), \ + dst2 REG_v(v25), \ + srcO REG_v(v22), \ + dstO REG_v(v23); \ + \ + register vector signed short srcV REG_v(v24), \ + dstV REG_v(v25), \ + srcW REG_v(v26), \ + dstW REG_v(v27), \ + but0 REG_v(v28), \ + but0S REG_v(v29), \ + op1 REG_v(v30), \ + but1 REG_v(v22), \ + op1S REG_v(v23), \ + but1S REG_v(v24), \ + op2 REG_v(v25), \ + but2 REG_v(v26), \ + op2S REG_v(v27), \ + but2S REG_v(v28), \ + op3 REG_v(v29), \ + op3S REG_v(v30); \ + \ + src1 = vec_ld(stride * i, src); \ + src2 = vec_ld((stride * i) + 16, src); \ + srcO = vec_perm(src1, src2, vec_lvsl(stride * i, src)); \ + dst1 = vec_ld(stride * i, dst); \ + dst2 = vec_ld((stride * i) + 16, dst); \ + dstO = vec_perm(dst1, dst2, vec_lvsl(stride * i, dst)); \ + /* promote the unsigned chars to signed shorts */ \ + srcV = \ + (vector signed short)vec_mergeh((vector signed char)vzero, \ + (vector signed char)srcO); \ + dstV = \ + (vector signed short)vec_mergeh((vector signed char)vzero, \ + (vector signed char)dstO); \ + srcW = \ + (vector signed short)vec_mergel((vector signed char)vzero, \ + (vector signed char)srcO); \ + dstW = \ + (vector signed short)vec_mergel((vector signed char)vzero, \ + (vector signed char)dstO); \ + /* substractions inside the first butterfly */ \ + but0 = vec_sub(srcV, dstV); \ + but0S = vec_sub(srcW, dstW); \ + op1 = vec_perm(but0, but0, perm1); \ + but1 = vec_mladd(but0, vprod1, op1); \ + op1S = vec_perm(but0S, but0S, perm1); \ + but1S = vec_mladd(but0S, vprod1, op1S); \ + op2 = vec_perm(but1, but1, perm2); \ + but2 = vec_mladd(but1, vprod2, op2); \ + op2S = vec_perm(but1S, but1S, perm2); \ + but2S = vec_mladd(but1S, vprod2, op2S); \ + op3 = vec_perm(but2, but2, perm3); \ + res1 = vec_mladd(but2, vprod3, op3); \ + op3S = vec_perm(but2S, but2S, perm3); \ + res2 = vec_mladd(but2S, vprod3, op3S); \ + } + ONEITERBUTTERFLY(0, temp0, temp0S); + ONEITERBUTTERFLY(1, temp1, temp1S); + ONEITERBUTTERFLY(2, temp2, temp2S); + ONEITERBUTTERFLY(3, temp3, temp3S); + ONEITERBUTTERFLY(4, temp4, temp4S); + ONEITERBUTTERFLY(5, temp5, temp5S); + ONEITERBUTTERFLY(6, temp6, temp6S); + ONEITERBUTTERFLY(7, temp7, temp7S); + } +#undef ONEITERBUTTERFLY + { + register vector signed int vsum; + register vector signed short line0S, line1S, line2S, line3S, line4S, + line5S, line6S, line7S, line0BS,line2BS, + line1BS,line3BS,line4BS,line6BS,line5BS, + line7BS,line0CS,line4CS,line1CS,line5CS, + line2CS,line6CS,line3CS,line7CS; + + register vector signed short line0 = vec_add(temp0, temp1); + register vector signed short line1 = vec_sub(temp0, temp1); + register vector signed short line2 = vec_add(temp2, temp3); + register vector signed short line3 = vec_sub(temp2, temp3); + register vector signed short line4 = vec_add(temp4, temp5); + register vector signed short line5 = vec_sub(temp4, temp5); + register vector signed short line6 = vec_add(temp6, temp7); + register vector signed short line7 = vec_sub(temp6, temp7); + + register vector signed short line0B = vec_add(line0, line2); + register vector signed short line2B = vec_sub(line0, line2); + register vector signed short line1B = vec_add(line1, line3); + register vector signed short line3B = vec_sub(line1, line3); + register vector signed short line4B = vec_add(line4, line6); + register vector signed short line6B = vec_sub(line4, line6); + register vector signed short line5B = vec_add(line5, line7); + register vector signed short line7B = vec_sub(line5, line7); + + register vector signed short line0C = vec_add(line0B, line4B); + register vector signed short line4C = vec_sub(line0B, line4B); + register vector signed short line1C = vec_add(line1B, line5B); + register vector signed short line5C = vec_sub(line1B, line5B); + register vector signed short line2C = vec_add(line2B, line6B); + register vector signed short line6C = vec_sub(line2B, line6B); + register vector signed short line3C = vec_add(line3B, line7B); + register vector signed short line7C = vec_sub(line3B, line7B); + + vsum = vec_sum4s(vec_abs(line0C), vec_splat_s32(0)); + vsum = vec_sum4s(vec_abs(line1C), vsum); + vsum = vec_sum4s(vec_abs(line2C), vsum); + vsum = vec_sum4s(vec_abs(line3C), vsum); + vsum = vec_sum4s(vec_abs(line4C), vsum); + vsum = vec_sum4s(vec_abs(line5C), vsum); + vsum = vec_sum4s(vec_abs(line6C), vsum); + vsum = vec_sum4s(vec_abs(line7C), vsum); + + line0S = vec_add(temp0S, temp1S); + line1S = vec_sub(temp0S, temp1S); + line2S = vec_add(temp2S, temp3S); + line3S = vec_sub(temp2S, temp3S); + line4S = vec_add(temp4S, temp5S); + line5S = vec_sub(temp4S, temp5S); + line6S = vec_add(temp6S, temp7S); + line7S = vec_sub(temp6S, temp7S); + + line0BS = vec_add(line0S, line2S); + line2BS = vec_sub(line0S, line2S); + line1BS = vec_add(line1S, line3S); + line3BS = vec_sub(line1S, line3S); + line4BS = vec_add(line4S, line6S); + line6BS = vec_sub(line4S, line6S); + line5BS = vec_add(line5S, line7S); + line7BS = vec_sub(line5S, line7S); + + line0CS = vec_add(line0BS, line4BS); + line4CS = vec_sub(line0BS, line4BS); + line1CS = vec_add(line1BS, line5BS); + line5CS = vec_sub(line1BS, line5BS); + line2CS = vec_add(line2BS, line6BS); + line6CS = vec_sub(line2BS, line6BS); + line3CS = vec_add(line3BS, line7BS); + line7CS = vec_sub(line3BS, line7BS); + + vsum = vec_sum4s(vec_abs(line0CS), vsum); + vsum = vec_sum4s(vec_abs(line1CS), vsum); + vsum = vec_sum4s(vec_abs(line2CS), vsum); + vsum = vec_sum4s(vec_abs(line3CS), vsum); + vsum = vec_sum4s(vec_abs(line4CS), vsum); + vsum = vec_sum4s(vec_abs(line5CS), vsum); + vsum = vec_sum4s(vec_abs(line6CS), vsum); + vsum = vec_sum4s(vec_abs(line7CS), vsum); + vsum = vec_sums(vsum, (vector signed int)vzero); + vsum = vec_splat(vsum, 3); + vec_ste(vsum, 0, &sum); + } + return sum; +} + +int hadamard8_diff16_altivec(/*MpegEncContext*/ void *s, uint8_t *dst, uint8_t *src, int stride, int h){ +POWERPC_PERF_DECLARE(altivec_hadamard8_diff16_num, 1); + int score; +POWERPC_PERF_START_COUNT(altivec_hadamard8_diff16_num, 1); + score = hadamard8_diff16x8_altivec(s, dst, src, stride, 8); + if (h==16) { + dst += 8*stride; + src += 8*stride; + score += hadamard8_diff16x8_altivec(s, dst, src, stride, 8); + } +POWERPC_PERF_STOP_COUNT(altivec_hadamard8_diff16_num, 1); + return score; +} + +int has_altivec(void) +{ +#ifdef __AMIGAOS4__ + ULONG result = 0; + extern struct ExecIFace *IExec; + + IExec->GetCPUInfoTags(GCIT_VectorUnit, &result, TAG_DONE); + if (result == VECTORTYPE_ALTIVEC) return 1; + return 0; +#else /* __AMIGAOS4__ */ + +#ifdef CONFIG_DARWIN + int sels[2] = {CTL_HW, HW_VECTORUNIT}; + int has_vu = 0; + size_t len = sizeof(has_vu); + int err; + + err = sysctl(sels, 2, &has_vu, &len, NULL, 0); + + if (err == 0) return (has_vu != 0); +#else /* CONFIG_DARWIN */ +/* no Darwin, do it the brute-force way */ +/* this is borrowed from the libmpeg2 library */ + { + signal (SIGILL, sigill_handler); + if (sigsetjmp (jmpbuf, 1)) { + signal (SIGILL, SIG_DFL); + } else { + canjump = 1; + + asm volatile ("mtspr 256, %0\n\t" + "vand %%v0, %%v0, %%v0" + : + : "r" (-1)); + + signal (SIGILL, SIG_DFL); + return 1; + } + } +#endif /* CONFIG_DARWIN */ + return 0; +#endif /* __AMIGAOS4__ */ +} + +static void vorbis_inverse_coupling_altivec(float *mag, float *ang, + int blocksize) +{ + int i; + vector float m, a; + vector bool int t0, t1; + const vector unsigned int v_31 = //XXX + vec_add(vec_add(vec_splat_u32(15),vec_splat_u32(15)),vec_splat_u32(1)); + for(i=0; i<blocksize; i+=4) { + m = vec_ld(0, mag+i); + a = vec_ld(0, ang+i); + t0 = vec_cmple(m, (vector float)vec_splat_u32(0)); + t1 = vec_cmple(a, (vector float)vec_splat_u32(0)); + a = vec_xor(a, (vector float) vec_sl((vector unsigned int)t0, v_31)); + t0 = (vector bool int)vec_and(a, t1); + t1 = (vector bool int)vec_andc(a, t1); + a = vec_sub(m, (vector float)t1); + m = vec_add(m, (vector float)t0); + vec_stl(a, 0, ang+i); + vec_stl(m, 0, mag+i); + } +} + +/* next one assumes that ((line_size % 8) == 0) */ +void avg_pixels8_xy2_altivec(uint8_t *block, const uint8_t *pixels, int line_size, int h) +{ +POWERPC_PERF_DECLARE(altivec_avg_pixels8_xy2_num, 1); + register int i; + register vector unsigned char pixelsv1, pixelsv2, pixelsavg; + register vector unsigned char blockv, temp1, temp2, blocktemp; + register vector unsigned short pixelssum1, pixelssum2, temp3; + + register const_vector unsigned char vczero = (const_vector unsigned char) + vec_splat_u8(0); + register const_vector unsigned short vctwo = (const_vector unsigned short) + vec_splat_u16(2); + + temp1 = vec_ld(0, pixels); + temp2 = vec_ld(16, pixels); + pixelsv1 = vec_perm(temp1, temp2, vec_lvsl(0, pixels)); + if ((((unsigned long)pixels) & 0x0000000F) == 0x0000000F) { + pixelsv2 = temp2; + } else { + pixelsv2 = vec_perm(temp1, temp2, vec_lvsl(1, pixels)); + } + pixelsv1 = vec_mergeh(vczero, pixelsv1); + pixelsv2 = vec_mergeh(vczero, pixelsv2); + pixelssum1 = vec_add((vector unsigned short)pixelsv1, + (vector unsigned short)pixelsv2); + pixelssum1 = vec_add(pixelssum1, vctwo); + +POWERPC_PERF_START_COUNT(altivec_avg_pixels8_xy2_num, 1); + for (i = 0; i < h ; i++) { + int rightside = ((unsigned long)block & 0x0000000F); + blockv = vec_ld(0, block); + + temp1 = vec_ld(line_size, pixels); + temp2 = vec_ld(line_size + 16, pixels); + pixelsv1 = vec_perm(temp1, temp2, vec_lvsl(line_size, pixels)); + if (((((unsigned long)pixels) + line_size) & 0x0000000F) == 0x0000000F) + { + pixelsv2 = temp2; + } else { + pixelsv2 = vec_perm(temp1, temp2, vec_lvsl(line_size + 1, pixels)); + } + + pixelsv1 = vec_mergeh(vczero, pixelsv1); + pixelsv2 = vec_mergeh(vczero, pixelsv2); + pixelssum2 = vec_add((vector unsigned short)pixelsv1, + (vector unsigned short)pixelsv2); + temp3 = vec_add(pixelssum1, pixelssum2); + temp3 = vec_sra(temp3, vctwo); + pixelssum1 = vec_add(pixelssum2, vctwo); + pixelsavg = vec_packsu(temp3, (vector unsigned short) vczero); + + if (rightside) { + blocktemp = vec_perm(blockv, pixelsavg, vcprm(0, 1, s0, s1)); + } else { + blocktemp = vec_perm(blockv, pixelsavg, vcprm(s0, s1, 2, 3)); + } + + blockv = vec_avg(blocktemp, blockv); + vec_st(blockv, 0, block); + + block += line_size; + pixels += line_size; + } + +POWERPC_PERF_STOP_COUNT(altivec_avg_pixels8_xy2_num, 1); +} + +void dsputil_init_altivec(DSPContext* c, AVCodecContext *avctx) +{ + c->pix_abs[0][1] = sad16_x2_altivec; + c->pix_abs[0][2] = sad16_y2_altivec; + c->pix_abs[0][3] = sad16_xy2_altivec; + c->pix_abs[0][0] = sad16_altivec; + c->pix_abs[1][0] = sad8_altivec; + c->sad[0]= sad16_altivec; + c->sad[1]= sad8_altivec; + c->pix_norm1 = pix_norm1_altivec; + c->sse[1]= sse8_altivec; + c->sse[0]= sse16_altivec; + c->pix_sum = pix_sum_altivec; + c->diff_pixels = diff_pixels_altivec; + c->get_pixels = get_pixels_altivec; + c->add_bytes= add_bytes_altivec; + c->put_pixels_tab[0][0] = put_pixels16_altivec; + /* the two functions do the same thing, so use the same code */ + c->put_no_rnd_pixels_tab[0][0] = put_pixels16_altivec; + c->avg_pixels_tab[0][0] = avg_pixels16_altivec; + c->avg_pixels_tab[1][0] = avg_pixels8_altivec; + c->avg_pixels_tab[1][3] = avg_pixels8_xy2_altivec; + c->put_pixels_tab[1][3] = put_pixels8_xy2_altivec; + c->put_no_rnd_pixels_tab[1][3] = put_no_rnd_pixels8_xy2_altivec; + c->put_pixels_tab[0][3] = put_pixels16_xy2_altivec; + c->put_no_rnd_pixels_tab[0][3] = put_no_rnd_pixels16_xy2_altivec; + + c->hadamard8_diff[0] = hadamard8_diff16_altivec; + c->hadamard8_diff[1] = hadamard8_diff8x8_altivec; +#ifdef CONFIG_VORBIS_DECODER + c->vorbis_inverse_coupling = vorbis_inverse_coupling_altivec; +#endif +} |