-#include "../dsputil.h"
+/*
+ * Copyright (c) 2002 Brian Foley
+ * Copyright (c) 2002 Dieter Shirley
+ * Copyright (c) 2003-2004 Romain Dolbeau <romain@dolbeau.org>
+ *
+ * This file is part of Libav.
+ *
+ * Libav 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.
+ *
+ * Libav 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 Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
-#if CONFIG_DARWIN
-#include <sys/sysctl.h>
+#include "config.h"
+#if HAVE_ALTIVEC_H
+#include <altivec.h>
#endif
+#include "libavcodec/dsputil.h"
+#include "util_altivec.h"
+#include "types_altivec.h"
+#include "dsputil_altivec.h"
-int pix_abs16x16_altivec(uint8_t *pix1, uint8_t *pix2, int line_size);
-int pix_abs8x8_altivec(uint8_t *pix1, uint8_t *pix2, int line_size);
-int pix_sum_altivec(UINT8 * pix, int line_size);
+static int sad16_x2_altivec(void *v, uint8_t *pix1, uint8_t *pix2, int line_size, int h)
+{
+ int i;
+ int s;
+ 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]));
-int has_altivec(void);
+ /* 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 pix_abs16x16_altivec(uint8_t *pix1, uint8_t *pix2, int line_size)
+static int sad16_y2_altivec(void *v, uint8_t *pix1, uint8_t *pix2, int line_size, int h)
{
- int i, s;
- vector unsigned char perm1, perm2, *pix1v, *pix2v;
+ int i;
+ int s;
+ 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;
+}
+
+static int sad16_xy2_altivec(void *v, uint8_t *pix1, uint8_t *pix2, int line_size, int h)
+{
+ int i;
+ int s;
+ 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;
+}
+
+static int sad16_altivec(void *v, uint8_t *pix1, uint8_t *pix2, int line_size, int h)
+{
+ int i;
+ int s;
+ const vector unsigned int zero = (const vector unsigned int)vec_splat_u32(0);
+ vector unsigned char perm1, perm2, pix1v_low, pix1v_high, pix2v_low, pix2v_high;
vector unsigned char t1, t2, t3,t4, t5;
- vector unsigned int sad, zero;
+ vector unsigned int sad;
vector signed int sumdiffs;
-
- zero = (vector unsigned int) (0);
- sad = (vector unsigned int) (0);
+
+ sad = (vector unsigned int)vec_splat_u32(0);
- for(i=0;i<16;i++) {
- /* Read potentially unaligned pixels into t1 and t2 */
+ for (i = 0; i < h; i++) {
+ /* Read potentially unaligned pixels into t1 and t2 */
perm1 = vec_lvsl(0, pix1);
- pix1v = (vector unsigned char *) pix1;
+ pix1v_high = vec_ld( 0, pix1);
+ pix1v_low = vec_ld(15, 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 */
+ pix2v_high = vec_ld( 0, pix2);
+ pix2v_low = vec_ld(15, pix2);
+ t1 = vec_perm(pix1v_high, pix1v_low, perm1);
+ t2 = vec_perm(pix2v_high, pix2v_low, 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 */
+
+ /* Add each 4 pixel group together and put 4 results into sad */
sad = vec_sum4s(t5, sad);
pix1 += line_size;
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_abs8x8_altivec(uint8_t *pix1, uint8_t *pix2, int line_size)
+static int sad8_altivec(void *v, uint8_t *pix1, uint8_t *pix2, int line_size, int h)
{
- int i, s;
+ int i;
+ int s;
+ 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, zero;
+ vector unsigned int sad;
vector signed int sumdiffs;
- zero = (vector unsigned int) (0);
- sad = (vector unsigned int) (0);
- permclear = (vector unsigned char) (255,255,255,255,255,255,255,255,0,0,0,0,0,0,0,0);
+ sad = (vector unsigned int)vec_splat_u32(0);
- for(i=0;i<8;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. */
+ permclear = (vector unsigned char){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);
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 */
+ /* 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 */
+ /* Add each 4 pixel group together and put 4 results into sad */
sad = vec_sum4s(t5, sad);
pix1 += line_size;
return s;
}
-int pix_sum_altivec(UINT8 * pix, int line_size)
+static int pix_norm1_altivec(uint8_t *pix, int line_size)
+{
+ int i;
+ int s;
+ 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.
+ */
+static int sse8_altivec(void *v, uint8_t *pix1, uint8_t *pix2, int line_size, int h)
+{
+ int i;
+ int s;
+ 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){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.
+ */
+static int sse16_altivec(void *v, uint8_t *pix1, uint8_t *pix2, int line_size, int h)
{
+ int i;
+ int s;
+ 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;
+}
+
+static 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, zero;
+ vector unsigned int sad;
vector signed int sumdiffs;
- int s, i;
+ int i;
+ int s;
+
+ sad = (vector unsigned int)vec_splat_u32(0);
- zero = (vector unsigned int) (0);
- sad = (vector unsigned int) (0);
-
for (i = 0; i < 16; i++) {
- /* Read the potentially unaligned 16 pixels into t1 */
+ /* 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 */
+ /* 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 dsputil_init_altivec(void)
+static void get_pixels_altivec(DCTELEM *restrict block, const uint8_t *pixels, int line_size)
{
- if (has_altivec()) {
- pix_abs16x16 = pix_abs16x16_altivec;
- pix_abs8x8 = pix_abs8x8_altivec;
- pix_sum = pix_sum_altivec;
+ 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;
+ }
+}
+
+static 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;
}
}
-int has_altivec(void)
+
+static void clear_block_altivec(DCTELEM *block) {
+ LOAD_ZERO;
+ vec_st(zero_s16v, 0, block);
+ vec_st(zero_s16v, 16, block);
+ vec_st(zero_s16v, 32, block);
+ vec_st(zero_s16v, 48, block);
+ vec_st(zero_s16v, 64, block);
+ vec_st(zero_s16v, 80, block);
+ vec_st(zero_s16v, 96, block);
+ vec_st(zero_s16v, 112, block);
+}
+
+
+static 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)
{
-#if CONFIG_DARWIN
- int sels[2] = {CTL_HW, HW_VECTORUNIT};
- int has_vu = 0;
- size_t len = sizeof(has_vu);
- int err;
+ register vector unsigned char pixelsv1, pixelsv2;
+ register vector unsigned char pixelsv1B, pixelsv2B;
+ register vector unsigned char pixelsv1C, pixelsv2C;
+ register vector unsigned char pixelsv1D, pixelsv2D;
- err = sysctl(sels, 2, &has_vu, &len, NULL, 0);
+ 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;
- if (err == 0) return (has_vu != 0);
+// 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, pixels);
+ pixelsv2 = vec_ld(16, pixels);
+ vec_st(vec_perm(pixelsv1, pixelsv2, perm),
+ 0, block);
+ pixels+=line_size;
+ block +=line_size;
+ }
+#else
+ for (i = 0; i < h; i += 4) {
+ pixelsv1 = vec_ld( 0, pixels);
+ pixelsv2 = vec_ld(15, pixels);
+ pixelsv1B = vec_ld(line_size, pixels);
+ pixelsv2B = vec_ld(15 + line_size, pixels);
+ pixelsv1C = vec_ld(line_size_2, pixels);
+ pixelsv2C = vec_ld(15 + line_size_2, pixels);
+ pixelsv1D = vec_ld(line_size_3, pixels);
+ pixelsv2D = vec_ld(15 + line_size_3, 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
- return 0;
+}
+
+/* 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)
+{
+ register vector unsigned char pixelsv1, pixelsv2, pixelsv, blockv;
+ register vector unsigned char perm = vec_lvsl(0, pixels);
+ int i;
+
+ for (i = 0; i < h; i++) {
+ pixelsv1 = vec_ld( 0, pixels);
+ pixelsv2 = vec_ld(16,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;
+ }
+}
+
+/* next one assumes that ((line_size % 8) == 0) */
+static void avg_pixels8_altivec(uint8_t * block, const uint8_t * pixels, int line_size, int h)
+{
+ register vector unsigned char pixelsv1, pixelsv2, pixelsv, blockv;
+ int i;
+
+ 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, pixels);
+ pixelsv2 = vec_ld(16, 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;
+ }
+}
+
+/* next one assumes that ((line_size % 8) == 0) */
+static void put_pixels8_xy2_altivec(uint8_t *block, const uint8_t *pixels, int line_size, int h)
+{
+ 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);
+
+ 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;
+ }
+}
+
+/* next one assumes that ((line_size % 8) == 0) */
+static void put_no_rnd_pixels8_xy2_altivec(uint8_t *block, const uint8_t *pixels, int line_size, int h)
+{
+ 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);
+
+ 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;
+ }
+}
+
+/* next one assumes that ((line_size % 16) == 0) */
+static void put_pixels16_xy2_altivec(uint8_t * block, const uint8_t * pixels, int line_size, int h)
+{
+ register int i;
+ register vector unsigned char pixelsv1, pixelsv2, pixelsv3, pixelsv4;
+ register vector unsigned char blockv, temp1, temp2;
+ register vector unsigned short temp3, temp4,
+ pixelssum1, pixelssum2, pixelssum3, pixelssum4;
+ 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));
+ }
+ 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;
+ }
+}
+
+/* next one assumes that ((line_size % 16) == 0) */
+static void put_no_rnd_pixels16_xy2_altivec(uint8_t * block, const uint8_t * pixels, int line_size, int h)
+{
+ register int i;
+ register vector unsigned char pixelsv1, pixelsv2, pixelsv3, pixelsv4;
+ register vector unsigned char blockv, temp1, temp2;
+ register vector unsigned short temp3, temp4,
+ pixelssum1, pixelssum2, pixelssum3, pixelssum4;
+ 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));
+ }
+ 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;
+ }
+}
+
+static int hadamard8_diff8x8_altivec(/*MpegEncContext*/ void *s, uint8_t *dst, uint8_t *src, int stride, int h){
+ 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;
+ {
+ register const vector signed short vprod1 =(const vector signed short)
+ { 1,-1, 1,-1, 1,-1, 1,-1 };
+ register const vector signed short vprod2 =(const vector signed short)
+ { 1, 1,-1,-1, 1, 1,-1,-1 };
+ register const vector signed short vprod3 =(const vector signed short)
+ { 1, 1, 1, 1,-1,-1,-1,-1 };
+ register const vector unsigned char perm1 = (const vector unsigned char)
+ {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)
+ {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)
+ {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); \
+ /* subtractions 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);
+ }
+ 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 (around 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 __asm__ ("v0"),
+ temp1 __asm__ ("v1"),
+ temp2 __asm__ ("v2"),
+ temp3 __asm__ ("v3"),
+ temp4 __asm__ ("v4"),
+ temp5 __asm__ ("v5"),
+ temp6 __asm__ ("v6"),
+ temp7 __asm__ ("v7");
+ register vector signed short
+ temp0S __asm__ ("v8"),
+ temp1S __asm__ ("v9"),
+ temp2S __asm__ ("v10"),
+ temp3S __asm__ ("v11"),
+ temp4S __asm__ ("v12"),
+ temp5S __asm__ ("v13"),
+ temp6S __asm__ ("v14"),
+ temp7S __asm__ ("v15");
+ register const vector unsigned char vzero __asm__ ("v31") =
+ (const vector unsigned char)vec_splat_u8(0);
+ {
+ register const vector signed short vprod1 __asm__ ("v16") =
+ (const vector signed short){ 1,-1, 1,-1, 1,-1, 1,-1 };
+ register const vector signed short vprod2 __asm__ ("v17") =
+ (const vector signed short){ 1, 1,-1,-1, 1, 1,-1,-1 };
+ register const vector signed short vprod3 __asm__ ("v18") =
+ (const vector signed short){ 1, 1, 1, 1,-1,-1,-1,-1 };
+ register const vector unsigned char perm1 __asm__ ("v19") =
+ (const vector unsigned char)
+ {0x02, 0x03, 0x00, 0x01, 0x06, 0x07, 0x04, 0x05,
+ 0x0A, 0x0B, 0x08, 0x09, 0x0E, 0x0F, 0x0C, 0x0D};
+ register const vector unsigned char perm2 __asm__ ("v20") =
+ (const vector unsigned char)
+ {0x04, 0x05, 0x06, 0x07, 0x00, 0x01, 0x02, 0x03,
+ 0x0C, 0x0D, 0x0E, 0x0F, 0x08, 0x09, 0x0A, 0x0B};
+ register const vector unsigned char perm3 __asm__ ("v21") =
+ (const vector unsigned char)
+ {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 __asm__ ("v22"), \
+ src2 __asm__ ("v23"), \
+ dst1 __asm__ ("v24"), \
+ dst2 __asm__ ("v25"), \
+ srcO __asm__ ("v22"), \
+ dstO __asm__ ("v23"); \
+ \
+ register vector signed short srcV __asm__ ("v24"), \
+ dstV __asm__ ("v25"), \
+ srcW __asm__ ("v26"), \
+ dstW __asm__ ("v27"), \
+ but0 __asm__ ("v28"), \
+ but0S __asm__ ("v29"), \
+ op1 __asm__ ("v30"), \
+ but1 __asm__ ("v22"), \
+ op1S __asm__ ("v23"), \
+ but1S __asm__ ("v24"), \
+ op2 __asm__ ("v25"), \
+ but2 __asm__ ("v26"), \
+ op2S __asm__ ("v27"), \
+ but2S __asm__ ("v28"), \
+ op3 __asm__ ("v29"), \
+ op3S __asm__ ("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); \
+ /* subtractions 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;
+}
+
+static int hadamard8_diff16_altivec(/*MpegEncContext*/ void *s, uint8_t *dst, uint8_t *src, int stride, int h){
+ int score;
+ 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);
+ }
+ return score;
+}
+
+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) */
+static void avg_pixels8_xy2_altivec(uint8_t *block, const uint8_t *pixels, int line_size, int h)
+{
+ 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);
+
+ 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;
+ }
+}
+
+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->clear_block = clear_block_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;
+ if (CONFIG_VORBIS_DECODER)
+ c->vorbis_inverse_coupling = vorbis_inverse_coupling_altivec;
}
projects / ffmpeg / blobdiff