+/*
+ * Copyright (c) 2002 Brian Foley
+ * Copyright (c) 2002 Dieter Shirley
+ * Copyright (c) 2003 Romain Dolbeau <romain@dolbeau.org>
+ *
+ * This library 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 of the License, or (at your option) any later version.
+ *
+ * This library 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 this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
#include "../dsputil.h"
-#if CONFIG_DARWIN
+#include "gcc_fixes.h"
+
+#include "dsputil_altivec.h"
+
+#ifdef CONFIG_DARWIN
#include <sys/sysctl.h>
-#endif
+#else /* CONFIG_DARWIN */
+#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 */
+
+int pix_abs16x16_x2_altivec(uint8_t *pix1, uint8_t *pix2, int line_size)
+{
+ 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<16;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 pix_abs16x16_y2_altivec(uint8_t *pix1, uint8_t *pix2, int line_size)
+{
+ 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<16;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 pix_abs16x16_xy2_altivec(uint8_t *pix1, uint8_t *pix2, int line_size)
+{
+ 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<16;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);
-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);
+ /* Pack the shorts back into a result */
+ avgv = vec_pack(avghv, avglv);
-int has_altivec(void);
+ /* 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 pix_abs16x16_altivec(uint8_t *pix1, uint8_t *pix2, int line_size)
{
- int i, s;
+ 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, 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++) {
int pix_abs8x8_altivec(uint8_t *pix1, uint8_t *pix2, int line_size)
{
- int i, s;
+ 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, 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);
+
+ 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<8;i++) {
/* Read potentially unaligned pixels into t1 and t2
return s;
}
-int pix_sum_altivec(UINT8 * pix, int line_size)
+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 pix_abs8x8_altivec code above w/ squaring added.
+ */
+int sse8_altivec(void *v, uint8_t *pix1, uint8_t *pix2, 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 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<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. */
+ 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 pix_abs16x16_altivec code above w/ squaring added.
+ */
+int sse16_altivec(void *v, uint8_t *pix1, uint8_t *pix2, 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 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<16;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, zero;
+ vector unsigned int sad;
vector signed int sumdiffs;
- int s, i;
-
- zero = (vector unsigned int) (0);
- sad = (vector unsigned int) (0);
+ 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 */
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;
+ }
+}
+
+int sad16x16_altivec(void *s, uint8_t *a, uint8_t *b, int stride) {
+ return pix_abs16x16_altivec(a,b,stride);
+}
+
+int sad8x8_altivec(void *s, uint8_t *a, uint8_t *b, int stride) {
+ return pix_abs8x8_altivec(a,b,stride);
+}
+
+void add_bytes_altivec(uint8_t *dst, uint8_t *src, int w) {
+#ifdef ALTIVEC_USE_REFERENCE_C_CODE
+ int i;
+ for(i=0; i+7<w; i++){
+ dst[i+0] += src[i+0];
+ dst[i+1] += src[i+1];
+ dst[i+2] += src[i+2];
+ dst[i+3] += src[i+3];
+ dst[i+4] += src[i+4];
+ dst[i+5] += src[i+5];
+ dst[i+6] += src[i+6];
+ dst[i+7] += src[i+7];
+ }
+ for(; i<w; i++)
+ dst[i+0] += src[i+0];
+#else /* ALTIVEC_USE_REFERENCE_C_CODE */
+ register int i;
+ register vector unsigned char vdst, vsrc;
+
+ /* dst and src are 16 bytes-aligned (guaranteed) */
+ for(i = 0 ; (i + 15) < w ; i++)
+ {
+ vdst = vec_ld(i << 4, (unsigned char*)dst);
+ vsrc = vec_ld(i << 4, (unsigned char*)src);
+ vdst = vec_add(vsrc, vdst);
+ vec_st(vdst, i << 4, (unsigned char*)dst);
+ }
+ /* if w is not a multiple of 16 */
+ for (; (i < w) ; i++)
+ {
+ dst[i] = src[i];
+ }
+#endif /* ALTIVEC_USE_REFERENCE_C_CODE */
+}
+
+/* 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_TBL_DECLARE(altivec_put_pixels16_num, 1);
+#ifdef ALTIVEC_USE_REFERENCE_C_CODE
+ int i;
+
+POWERPC_TBL_START_COUNT(altivec_put_pixels16_num, 1);
+
+ for(i=0; i<h; i++) {
+ *((uint32_t*)(block )) = (((const struct unaligned_32 *) (pixels))->l);
+ *((uint32_t*)(block+4)) = (((const struct unaligned_32 *) (pixels+4))->l);
+ *((uint32_t*)(block+8)) = (((const struct unaligned_32 *) (pixels+8))->l);
+ *((uint32_t*)(block+12)) = (((const struct unaligned_32 *) (pixels+12))->l);
+ pixels+=line_size;
+ block +=line_size;
+ }
+
+POWERPC_TBL_STOP_COUNT(altivec_put_pixels16_num, 1);
+
+#else /* ALTIVEC_USE_REFERENCE_C_CODE */
+ register vector unsigned char pixelsv1, pixelsv2;
+ register vector unsigned char perm = vec_lvsl(0, pixels);
+ int i;
+
+POWERPC_TBL_START_COUNT(altivec_put_pixels16_num, 1);
+
+ 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;
+ }
+
+POWERPC_TBL_STOP_COUNT(altivec_put_pixels16_num, 1);
+
+#endif /* ALTIVEC_USE_REFERENCE_C_CODE */
+}
+
+/* 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_TBL_DECLARE(altivec_avg_pixels16_num, 1);
+#ifdef ALTIVEC_USE_REFERENCE_C_CODE
+ int i;
+
+POWERPC_TBL_START_COUNT(altivec_avg_pixels16_num, 1);
+
+ for(i=0; i<h; i++) {
+ op_avg(*((uint32_t*)(block)),(((const struct unaligned_32 *)(pixels))->l));
+ op_avg(*((uint32_t*)(block+4)),(((const struct unaligned_32 *)(pixels+4))->l));
+ op_avg(*((uint32_t*)(block+8)),(((const struct unaligned_32 *)(pixels+8))->l));
+ op_avg(*((uint32_t*)(block+12)),(((const struct unaligned_32 *)(pixels+12))->l));
+ pixels+=line_size;
+ block +=line_size;
+ }
+
+POWERPC_TBL_STOP_COUNT(altivec_avg_pixels16_num, 1);
+
+#else /* ALTIVEC_USE_REFERENCE_C_CODE */
+ register vector unsigned char pixelsv1, pixelsv2, pixelsv, blockv;
+ register vector unsigned char perm = vec_lvsl(0, pixels);
+ int i;
+
+POWERPC_TBL_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_TBL_STOP_COUNT(altivec_avg_pixels16_num, 1);
+
+#endif /* ALTIVEC_USE_REFERENCE_C_CODE */
+}
+
+/* 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_TBL_DECLARE(altivec_avg_pixels8_num, 1);
+#ifdef ALTIVEC_USE_REFERENCE_C_CODE
+ int i;
+POWERPC_TBL_START_COUNT(altivec_avg_pixels8_num, 1);
+ for (i = 0; i < h; i++) {
+ *((uint32_t *) (block)) =
+ (((*((uint32_t *) (block))) |
+ ((((const struct unaligned_32 *) (pixels))->l))) -
+ ((((*((uint32_t *) (block))) ^
+ ((((const struct unaligned_32 *) (pixels))->
+ l))) & 0xFEFEFEFEUL) >> 1));
+ *((uint32_t *) (block + 4)) =
+ (((*((uint32_t *) (block + 4))) |
+ ((((const struct unaligned_32 *) (pixels + 4))->l))) -
+ ((((*((uint32_t *) (block + 4))) ^
+ ((((const struct unaligned_32 *) (pixels +
+ 4))->
+ l))) & 0xFEFEFEFEUL) >> 1));
+ pixels += line_size;
+ block += line_size;
+ }
+POWERPC_TBL_STOP_COUNT(altivec_avg_pixels8_num, 1);
+
+#else /* ALTIVEC_USE_REFERENCE_C_CODE */
+ register vector unsigned char pixelsv1, pixelsv2, pixelsv, blockv;
+ int i;
+
+POWERPC_TBL_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_TBL_STOP_COUNT(altivec_avg_pixels8_num, 1);
+
+#endif /* ALTIVEC_USE_REFERENCE_C_CODE */
+}
+
+/* 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_TBL_DECLARE(altivec_put_pixels8_xy2_num, 1);
+#ifdef ALTIVEC_USE_REFERENCE_C_CODE
+ int j;
+POWERPC_TBL_START_COUNT(altivec_put_pixels8_xy2_num, 1);
+ for (j = 0; j < 2; j++) {
+ int i;
+ const uint32_t a = (((const struct unaligned_32 *) (pixels))->l);
+ const uint32_t b =
+ (((const struct unaligned_32 *) (pixels + 1))->l);
+ uint32_t l0 =
+ (a & 0x03030303UL) + (b & 0x03030303UL) + 0x02020202UL;
+ uint32_t h0 =
+ ((a & 0xFCFCFCFCUL) >> 2) + ((b & 0xFCFCFCFCUL) >> 2);
+ uint32_t l1, h1;
+ pixels += line_size;
+ for (i = 0; i < h; i += 2) {
+ uint32_t a = (((const struct unaligned_32 *) (pixels))->l);
+ uint32_t b = (((const struct unaligned_32 *) (pixels + 1))->l);
+ l1 = (a & 0x03030303UL) + (b & 0x03030303UL);
+ h1 = ((a & 0xFCFCFCFCUL) >> 2) + ((b & 0xFCFCFCFCUL) >> 2);
+ *((uint32_t *) block) =
+ h0 + h1 + (((l0 + l1) >> 2) & 0x0F0F0F0FUL);
+ pixels += line_size;
+ block += line_size;
+ a = (((const struct unaligned_32 *) (pixels))->l);
+ b = (((const struct unaligned_32 *) (pixels + 1))->l);
+ l0 = (a & 0x03030303UL) + (b & 0x03030303UL) + 0x02020202UL;
+ h0 = ((a & 0xFCFCFCFCUL) >> 2) + ((b & 0xFCFCFCFCUL) >> 2);
+ *((uint32_t *) block) =
+ h0 + h1 + (((l0 + l1) >> 2) & 0x0F0F0F0FUL);
+ pixels += line_size;
+ block += line_size;
+ } pixels += 4 - line_size * (h + 1);
+ block += 4 - line_size * h;
+ }
+
+POWERPC_TBL_STOP_COUNT(altivec_put_pixels8_xy2_num, 1);
+
+#else /* ALTIVEC_USE_REFERENCE_C_CODE */
+ 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_TBL_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_TBL_STOP_COUNT(altivec_put_pixels8_xy2_num, 1);
+#endif /* ALTIVEC_USE_REFERENCE_C_CODE */
+}
+
+/* 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_TBL_DECLARE(altivec_put_no_rnd_pixels8_xy2_num, 1);
+#ifdef ALTIVEC_USE_REFERENCE_C_CODE
+ int j;
+POWERPC_TBL_START_COUNT(altivec_put_no_rnd_pixels8_xy2_num, 1);
+ for (j = 0; j < 2; j++) {
+ int i;
+ const uint32_t a = (((const struct unaligned_32 *) (pixels))->l);
+ const uint32_t b =
+ (((const struct unaligned_32 *) (pixels + 1))->l);
+ uint32_t l0 =
+ (a & 0x03030303UL) + (b & 0x03030303UL) + 0x01010101UL;
+ uint32_t h0 =
+ ((a & 0xFCFCFCFCUL) >> 2) + ((b & 0xFCFCFCFCUL) >> 2);
+ uint32_t l1, h1;
+ pixels += line_size;
+ for (i = 0; i < h; i += 2) {
+ uint32_t a = (((const struct unaligned_32 *) (pixels))->l);
+ uint32_t b = (((const struct unaligned_32 *) (pixels + 1))->l);
+ l1 = (a & 0x03030303UL) + (b & 0x03030303UL);
+ h1 = ((a & 0xFCFCFCFCUL) >> 2) + ((b & 0xFCFCFCFCUL) >> 2);
+ *((uint32_t *) block) =
+ h0 + h1 + (((l0 + l1) >> 2) & 0x0F0F0F0FUL);
+ pixels += line_size;
+ block += line_size;
+ a = (((const struct unaligned_32 *) (pixels))->l);
+ b = (((const struct unaligned_32 *) (pixels + 1))->l);
+ l0 = (a & 0x03030303UL) + (b & 0x03030303UL) + 0x01010101UL;
+ h0 = ((a & 0xFCFCFCFCUL) >> 2) + ((b & 0xFCFCFCFCUL) >> 2);
+ *((uint32_t *) block) =
+ h0 + h1 + (((l0 + l1) >> 2) & 0x0F0F0F0FUL);
+ pixels += line_size;
+ block += line_size;
+ } pixels += 4 - line_size * (h + 1);
+ block += 4 - line_size * h;
+ }
+
+POWERPC_TBL_STOP_COUNT(altivec_put_no_rnd_pixels8_xy2_num, 1);
+
+#else /* ALTIVEC_USE_REFERENCE_C_CODE */
+ 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_TBL_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_TBL_STOP_COUNT(altivec_put_no_rnd_pixels8_xy2_num, 1);
+#endif /* ALTIVEC_USE_REFERENCE_C_CODE */
+}
+
+/* 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_TBL_DECLARE(altivec_put_pixels16_xy2_num, 1);
+#ifdef ALTIVEC_USE_REFERENCE_C_CODE
+ int j;
+POWERPC_TBL_START_COUNT(altivec_put_pixels16_xy2_num, 1);
+ for (j = 0; j < 4; j++) {
+ int i;
+ const uint32_t a = (((const struct unaligned_32 *) (pixels))->l);
+ const uint32_t b =
+ (((const struct unaligned_32 *) (pixels + 1))->l);
+ uint32_t l0 =
+ (a & 0x03030303UL) + (b & 0x03030303UL) + 0x02020202UL;
+ uint32_t h0 =
+ ((a & 0xFCFCFCFCUL) >> 2) + ((b & 0xFCFCFCFCUL) >> 2);
+ uint32_t l1, h1;
+ pixels += line_size;
+ for (i = 0; i < h; i += 2) {
+ uint32_t a = (((const struct unaligned_32 *) (pixels))->l);
+ uint32_t b = (((const struct unaligned_32 *) (pixels + 1))->l);
+ l1 = (a & 0x03030303UL) + (b & 0x03030303UL);
+ h1 = ((a & 0xFCFCFCFCUL) >> 2) + ((b & 0xFCFCFCFCUL) >> 2);
+ *((uint32_t *) block) =
+ h0 + h1 + (((l0 + l1) >> 2) & 0x0F0F0F0FUL);
+ pixels += line_size;
+ block += line_size;
+ a = (((const struct unaligned_32 *) (pixels))->l);
+ b = (((const struct unaligned_32 *) (pixels + 1))->l);
+ l0 = (a & 0x03030303UL) + (b & 0x03030303UL) + 0x02020202UL;
+ h0 = ((a & 0xFCFCFCFCUL) >> 2) + ((b & 0xFCFCFCFCUL) >> 2);
+ *((uint32_t *) block) =
+ h0 + h1 + (((l0 + l1) >> 2) & 0x0F0F0F0FUL);
+ pixels += line_size;
+ block += line_size;
+ } pixels += 4 - line_size * (h + 1);
+ block += 4 - line_size * h;
+ }
+
+POWERPC_TBL_STOP_COUNT(altivec_put_pixels16_xy2_num, 1);
+
+#else /* ALTIVEC_USE_REFERENCE_C_CODE */
+ 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_TBL_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_TBL_STOP_COUNT(altivec_put_pixels16_xy2_num, 1);
+#endif /* ALTIVEC_USE_REFERENCE_C_CODE */
+}
+
+/* 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_TBL_DECLARE(altivec_put_no_rnd_pixels16_xy2_num, 1);
+#ifdef ALTIVEC_USE_REFERENCE_C_CODE
+ int j;
+POWERPC_TBL_START_COUNT(altivec_put_no_rnd_pixels16_xy2_num, 1);
+ for (j = 0; j < 4; j++) {
+ int i;
+ const uint32_t a = (((const struct unaligned_32 *) (pixels))->l);
+ const uint32_t b =
+ (((const struct unaligned_32 *) (pixels + 1))->l);
+ uint32_t l0 =
+ (a & 0x03030303UL) + (b & 0x03030303UL) + 0x01010101UL;
+ uint32_t h0 =
+ ((a & 0xFCFCFCFCUL) >> 2) + ((b & 0xFCFCFCFCUL) >> 2);
+ uint32_t l1, h1;
+ pixels += line_size;
+ for (i = 0; i < h; i += 2) {
+ uint32_t a = (((const struct unaligned_32 *) (pixels))->l);
+ uint32_t b = (((const struct unaligned_32 *) (pixels + 1))->l);
+ l1 = (a & 0x03030303UL) + (b & 0x03030303UL);
+ h1 = ((a & 0xFCFCFCFCUL) >> 2) + ((b & 0xFCFCFCFCUL) >> 2);
+ *((uint32_t *) block) =
+ h0 + h1 + (((l0 + l1) >> 2) & 0x0F0F0F0FUL);
+ pixels += line_size;
+ block += line_size;
+ a = (((const struct unaligned_32 *) (pixels))->l);
+ b = (((const struct unaligned_32 *) (pixels + 1))->l);
+ l0 = (a & 0x03030303UL) + (b & 0x03030303UL) + 0x01010101UL;
+ h0 = ((a & 0xFCFCFCFCUL) >> 2) + ((b & 0xFCFCFCFCUL) >> 2);
+ *((uint32_t *) block) =
+ h0 + h1 + (((l0 + l1) >> 2) & 0x0F0F0F0FUL);
+ pixels += line_size;
+ block += line_size;
+ } pixels += 4 - line_size * (h + 1);
+ block += 4 - line_size * h;
+ }
+
+POWERPC_TBL_STOP_COUNT(altivec_put_no_rnd_pixels16_xy2_num, 1);
+
+#else /* ALTIVEC_USE_REFERENCE_C_CODE */
+ 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_TBL_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_TBL_STOP_COUNT(altivec_put_no_rnd_pixels16_xy2_num, 1);
+#endif /* ALTIVEC_USE_REFERENCE_C_CODE */
+}
+
int has_altivec(void)
{
-#if CONFIG_DARWIN
+#ifdef CONFIG_DARWIN
int sels[2] = {CTL_HW, HW_VECTORUNIT};
int has_vu = 0;
size_t len = sizeof(has_vu);
err = sysctl(sels, 2, &has_vu, &len, NULL, 0);
if (err == 0) return (has_vu != 0);
-#endif
+#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;
}
projects / ffmpeg / blobdiff