void add_pixels_clamped_mvi_asm(const DCTELEM *block, uint8_t *pixels,
int line_size);
+void get_pixels_mvi(DCTELEM *restrict block,
+ const uint8_t *restrict pixels, int line_size);
+void diff_pixels_mvi(DCTELEM *block, const uint8_t *s1, const uint8_t *s2,
+ int stride);
+int pix_abs8x8_mvi(uint8_t *pix1, uint8_t *pix2, int line_size);
+int pix_abs16x16_mvi(uint8_t *pix1, uint8_t *pix2, int line_size);
+int pix_abs16x16_x2_mvi(uint8_t *pix1, uint8_t *pix2, int line_size);
+int pix_abs16x16_y2_mvi(uint8_t *pix1, uint8_t *pix2, int line_size);
+int pix_abs16x16_xy2_mvi(uint8_t *pix1, uint8_t *pix2, int line_size);
+
#if 0
/* These functions were the base for the optimized assembler routines,
and remain here for documentation purposes. */
if (amask(AMASK_MVI) == 0) {
put_pixels_clamped = put_pixels_clamped_mvi_asm;
add_pixels_clamped = add_pixels_clamped_mvi_asm;
+
+ get_pixels = get_pixels_mvi;
+ diff_pixels = diff_pixels_mvi;
+ pix_abs8x8 = pix_abs8x8_mvi;
+ pix_abs16x16 = pix_abs16x16_mvi;
+ pix_abs16x16_x2 = pix_abs16x16_x2_mvi;
+ pix_abs16x16_y2 = pix_abs16x16_y2_mvi;
+ pix_abs16x16_xy2 = pix_abs16x16_xy2_mvi;
}
}
--- /dev/null
+/*
+ * Alpha optimized DSP utils
+ * Copyright (c) 2002 Falk Hueffner <falk@debian.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 "asm.h"
+#include "../dsputil.h"
+
+void get_pixels_mvi(DCTELEM *restrict block,
+ const uint8_t *restrict pixels, int line_size)
+{
+ int h = 8;
+
+ do {
+ uint64_t p;
+
+ p = ldq(pixels);
+ stq(unpkbw(p), block);
+ stq(unpkbw(p >> 32), block + 4);
+
+ pixels += line_size;
+ block += 8;
+ } while (--h);
+}
+
+void diff_pixels_mvi(DCTELEM *block, const uint8_t *s1, const uint8_t *s2,
+ int stride) {
+ int h = 8;
+ uint64_t mask = 0x4040;
+
+ mask |= mask << 16;
+ mask |= mask << 32;
+ do {
+ uint64_t x, y, c, d, a;
+ uint64_t signs;
+
+ x = ldq(s1);
+ y = ldq(s2);
+ c = cmpbge(x, y);
+ d = x - y;
+ a = zap(mask, c); /* We use 0x4040404040404040 here... */
+ d += 4 * a; /* ...so we can use s4addq here. */
+ signs = zap(-1, c);
+
+ stq(unpkbw(d) | (unpkbw(signs) << 8), block);
+ stq(unpkbw(d >> 32) | (unpkbw(signs >> 32) << 8), block + 4);
+
+ s1 += stride;
+ s2 += stride;
+ block += 8;
+ } while (--h);
+}
+
+static inline uint64_t avg2(uint64_t a, uint64_t b)
+{
+ return (a | b) - (((a ^ b) & BYTE_VEC(0xfe)) >> 1);
+}
+
+static inline uint64_t avg4(uint64_t l1, uint64_t l2, uint64_t l3, uint64_t l4)
+{
+ uint64_t r1 = ((l1 & ~BYTE_VEC(0x03)) >> 2)
+ + ((l2 & ~BYTE_VEC(0x03)) >> 2)
+ + ((l3 & ~BYTE_VEC(0x03)) >> 2)
+ + ((l4 & ~BYTE_VEC(0x03)) >> 2);
+ uint64_t r2 = (( (l1 & BYTE_VEC(0x03))
+ + (l2 & BYTE_VEC(0x03))
+ + (l3 & BYTE_VEC(0x03))
+ + (l4 & BYTE_VEC(0x03))
+ + BYTE_VEC(0x02)) >> 2) & BYTE_VEC(0x03);
+ return r1 + r2;
+}
+
+int pix_abs8x8_mvi(uint8_t *pix1, uint8_t *pix2, int line_size)
+{
+ int result = 0;
+ int h = 8;
+
+ if ((size_t) pix2 & 0x7) {
+ /* works only when pix2 is actually unaligned */
+ do { /* do 8 pixel a time */
+ uint64_t p1, p2;
+
+ p1 = ldq(pix1);
+ p2 = uldq(pix2);
+ result += perr(p1, p2);
+
+ pix1 += line_size;
+ pix2 += line_size;
+ } while (--h);
+ } else {
+ do {
+ uint64_t p1, p2;
+
+ p1 = ldq(pix1);
+ p2 = ldq(pix2);
+ result += perr(p1, p2);
+
+ pix1 += line_size;
+ pix2 += line_size;
+ } while (--h);
+ }
+
+ return result;
+}
+
+int pix_abs16x16_mvi(uint8_t *pix1, uint8_t *pix2, int line_size)
+{
+ int result = 0;
+ int h = 16;
+
+ if ((size_t) pix2 & 0x7) {
+ /* works only when pix2 is actually unaligned */
+ do { /* do 16 pixel a time */
+ uint64_t p1_l, p1_r, p2_l, p2_r;
+ uint64_t t;
+
+ p1_l = ldq(pix1);
+ p1_r = ldq(pix1 + 8);
+ t = ldq_u(pix2 + 8);
+ p2_l = extql(ldq_u(pix2), pix2) | extqh(t, pix2);
+ p2_r = extql(t, pix2) | extqh(ldq_u(pix2 + 16), pix2);
+ pix1 += line_size;
+ pix2 += line_size;
+
+ result += perr(p1_l, p2_l)
+ + perr(p1_r, p2_r);
+ } while (--h);
+ } else {
+ do {
+ uint64_t p1_l, p1_r, p2_l, p2_r;
+
+ p1_l = ldq(pix1);
+ p1_r = ldq(pix1 + 8);
+ p2_l = ldq(pix2);
+ p2_r = ldq(pix2 + 8);
+ pix1 += line_size;
+ pix2 += line_size;
+
+ result += perr(p1_l, p2_l)
+ + perr(p1_r, p2_r);
+ } while (--h);
+ }
+
+ return result;
+}
+
+int pix_abs16x16_x2_mvi(uint8_t *pix1, uint8_t *pix2, int line_size)
+{
+ int result = 0;
+ int h = 16;
+ uint64_t disalign = (size_t) pix2 & 0x7;
+
+ switch (disalign) {
+ case 0:
+ do {
+ uint64_t p1_l, p1_r, p2_l, p2_r;
+ uint64_t l, r;
+
+ p1_l = ldq(pix1);
+ p1_r = ldq(pix1 + 8);
+ l = ldq(pix2);
+ r = ldq(pix2 + 8);
+ p2_l = avg2(l, (l >> 8) | ((uint64_t) r << 56));
+ p2_r = avg2(r, (r >> 8) | ((uint64_t) pix2[16] << 56));
+ pix1 += line_size;
+ pix2 += line_size;
+
+ result += perr(p1_l, p2_l)
+ + perr(p1_r, p2_r);
+ } while (--h);
+ break;
+ case 7:
+ /* |.......l|lllllllr|rrrrrrr*|
+ This case is special because disalign1 would be 8, which
+ gets treated as 0 by extqh. At least it is a bit faster
+ that way :) */
+ do {
+ uint64_t p1_l, p1_r, p2_l, p2_r;
+ uint64_t l, m, r;
+
+ p1_l = ldq(pix1);
+ p1_r = ldq(pix1 + 8);
+ l = ldq_u(pix2);
+ m = ldq_u(pix2 + 8);
+ r = ldq_u(pix2 + 16);
+ p2_l = avg2(extql(l, disalign) | extqh(m, disalign), m);
+ p2_r = avg2(extql(m, disalign) | extqh(r, disalign), r);
+ pix1 += line_size;
+ pix2 += line_size;
+
+ result += perr(p1_l, p2_l)
+ + perr(p1_r, p2_r);
+ } while (--h);
+ break;
+ default:
+ do {
+ uint64_t disalign1 = disalign + 1;
+ uint64_t p1_l, p1_r, p2_l, p2_r;
+ uint64_t l, m, r;
+
+ p1_l = ldq(pix1);
+ p1_r = ldq(pix1 + 8);
+ l = ldq_u(pix2);
+ m = ldq_u(pix2 + 8);
+ r = ldq_u(pix2 + 16);
+ p2_l = avg2(extql(l, disalign) | extqh(m, disalign),
+ extql(l, disalign1) | extqh(m, disalign1));
+ p2_r = avg2(extql(m, disalign) | extqh(r, disalign),
+ extql(m, disalign1) | extqh(r, disalign1));
+ pix1 += line_size;
+ pix2 += line_size;
+
+ result += perr(p1_l, p2_l)
+ + perr(p1_r, p2_r);
+ } while (--h);
+ break;
+ }
+ return result;
+}
+
+int pix_abs16x16_y2_mvi(uint8_t *pix1, uint8_t *pix2, int line_size)
+{
+ int result = 0;
+ int h = 16;
+
+ if ((size_t) pix2 & 0x7) {
+ uint64_t t, p2_l, p2_r;
+ t = ldq_u(pix2 + 8);
+ p2_l = extql(ldq_u(pix2), pix2) | extqh(t, pix2);
+ p2_r = extql(t, pix2) | extqh(ldq_u(pix2 + 16), pix2);
+
+ do {
+ uint64_t p1_l, p1_r, np2_l, np2_r;
+ uint64_t t;
+
+ p1_l = ldq(pix1);
+ p1_r = ldq(pix1 + 8);
+ pix2 += line_size;
+ t = ldq_u(pix2 + 8);
+ np2_l = extql(ldq_u(pix2), pix2) | extqh(t, pix2);
+ np2_r = extql(t, pix2) | extqh(ldq_u(pix2 + 16), pix2);
+
+ result += perr(p1_l, avg2(p2_l, np2_l))
+ + perr(p1_r, avg2(p2_r, np2_r));
+
+ pix1 += line_size;
+ p2_l = np2_l;
+ p2_r = np2_r;
+
+ } while (--h);
+ } else {
+ uint64_t p2_l, p2_r;
+ p2_l = ldq(pix2);
+ p2_r = ldq(pix2 + 8);
+ do {
+ uint64_t p1_l, p1_r, np2_l, np2_r;
+
+ p1_l = ldq(pix1);
+ p1_r = ldq(pix1 + 8);
+ pix2 += line_size;
+ np2_l = ldq(pix2);
+ np2_r = ldq(pix2 + 8);
+
+ result += perr(p1_l, avg2(p2_l, np2_l))
+ + perr(p1_r, avg2(p2_r, np2_r));
+
+ pix1 += line_size;
+ p2_l = np2_l;
+ p2_r = np2_r;
+ } while (--h);
+ }
+ return result;
+}
+
+int pix_abs16x16_xy2_mvi(uint8_t *pix1, uint8_t *pix2, int line_size)
+{
+ int result = 0;
+ int h = 16;
+
+ uint64_t p1_l, p1_r;
+ uint64_t p2_l, p2_r, p2_x;
+
+ p1_l = ldq(pix1);
+ p1_r = ldq(pix1 + 8);
+
+ if ((size_t) pix2 & 0x7) { /* could be optimized a lot */
+ p2_l = uldq(pix2);
+ p2_r = uldq(pix2 + 8);
+ p2_x = (uint64_t) pix2[16] << 56;
+ } else {
+ p2_l = ldq(pix2);
+ p2_r = ldq(pix2 + 8);
+ p2_x = ldq(pix2 + 16) << 56;
+ }
+
+ do {
+ uint64_t np1_l, np1_r;
+ uint64_t np2_l, np2_r, np2_x;
+
+ pix1 += line_size;
+ pix2 += line_size;
+
+ np1_l = ldq(pix1);
+ np1_r = ldq(pix1 + 8);
+
+ if ((size_t) pix2 & 0x7) { /* could be optimized a lot */
+ np2_l = uldq(pix2);
+ np2_r = uldq(pix2 + 8);
+ np2_x = (uint64_t) pix2[16] << 56;
+ } else {
+ np2_l = ldq(pix2);
+ np2_r = ldq(pix2 + 8);
+ np2_x = ldq(pix2 + 16) << 56;
+ }
+
+ result += perr(p1_l,
+ avg4( p2_l, ( p2_l >> 8) | ((uint64_t) p2_r << 56),
+ np2_l, (np2_l >> 8) | ((uint64_t) np2_r << 56)))
+ + perr(p1_r,
+ avg4( p2_r, ( p2_r >> 8) | ((uint64_t) p2_x),
+ np2_r, (np2_r >> 8) | ((uint64_t) np2_x)));
+
+ p1_l = np1_l;
+ p1_r = np1_r;
+ p2_l = np2_l;
+ p2_r = np2_r;
+ p2_x = np2_x;
+ } while (--h);
+
+ return result;
+}