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Diffstat (limited to 'contrib/ffmpeg/libavcodec/alpha/dsputil_alpha.c')
-rw-r--r--contrib/ffmpeg/libavcodec/alpha/dsputil_alpha.c362
1 files changed, 362 insertions, 0 deletions
diff --git a/contrib/ffmpeg/libavcodec/alpha/dsputil_alpha.c b/contrib/ffmpeg/libavcodec/alpha/dsputil_alpha.c
new file mode 100644
index 000000000..c98d6f7ff
--- /dev/null
+++ b/contrib/ffmpeg/libavcodec/alpha/dsputil_alpha.c
@@ -0,0 +1,362 @@
+/*
+ * Alpha optimized DSP utils
+ * Copyright (c) 2002 Falk Hueffner <falk@debian.org>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "asm.h"
+#include "../dsputil.h"
+
+extern void simple_idct_axp(DCTELEM *block);
+extern void simple_idct_put_axp(uint8_t *dest, int line_size, DCTELEM *block);
+extern void simple_idct_add_axp(uint8_t *dest, int line_size, DCTELEM *block);
+
+void put_pixels_axp_asm(uint8_t *block, const uint8_t *pixels,
+ int line_size, int h);
+void put_pixels_clamped_mvi_asm(const DCTELEM *block, uint8_t *pixels,
+ int line_size);
+void add_pixels_clamped_mvi_asm(const DCTELEM *block, uint8_t *pixels,
+ int line_size);
+void (*put_pixels_clamped_axp_p)(const DCTELEM *block, uint8_t *pixels,
+ int line_size);
+void (*add_pixels_clamped_axp_p)(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(void *v, uint8_t *pix1, uint8_t *pix2, int line_size, int h);
+int pix_abs16x16_mvi_asm(uint8_t *pix1, uint8_t *pix2, int line_size);
+int pix_abs16x16_x2_mvi(void *v, uint8_t *pix1, uint8_t *pix2, int line_size, int h);
+int pix_abs16x16_y2_mvi(void *v, uint8_t *pix1, uint8_t *pix2, int line_size, int h);
+int pix_abs16x16_xy2_mvi(void *v, uint8_t *pix1, uint8_t *pix2, int line_size, int h);
+
+#if 0
+/* These functions were the base for the optimized assembler routines,
+ and remain here for documentation purposes. */
+static void put_pixels_clamped_mvi(const DCTELEM *block, uint8_t *pixels,
+ int line_size)
+{
+ int i = 8;
+ uint64_t clampmask = zap(-1, 0xaa); /* 0x00ff00ff00ff00ff */
+
+ do {
+ uint64_t shorts0, shorts1;
+
+ shorts0 = ldq(block);
+ shorts0 = maxsw4(shorts0, 0);
+ shorts0 = minsw4(shorts0, clampmask);
+ stl(pkwb(shorts0), pixels);
+
+ shorts1 = ldq(block + 4);
+ shorts1 = maxsw4(shorts1, 0);
+ shorts1 = minsw4(shorts1, clampmask);
+ stl(pkwb(shorts1), pixels + 4);
+
+ pixels += line_size;
+ block += 8;
+ } while (--i);
+}
+
+void add_pixels_clamped_mvi(const DCTELEM *block, uint8_t *pixels,
+ int line_size)
+{
+ int h = 8;
+ /* Keep this function a leaf function by generating the constants
+ manually (mainly for the hack value ;-). */
+ uint64_t clampmask = zap(-1, 0xaa); /* 0x00ff00ff00ff00ff */
+ uint64_t signmask = zap(-1, 0x33);
+ signmask ^= signmask >> 1; /* 0x8000800080008000 */
+
+ do {
+ uint64_t shorts0, pix0, signs0;
+ uint64_t shorts1, pix1, signs1;
+
+ shorts0 = ldq(block);
+ shorts1 = ldq(block + 4);
+
+ pix0 = unpkbw(ldl(pixels));
+ /* Signed subword add (MMX paddw). */
+ signs0 = shorts0 & signmask;
+ shorts0 &= ~signmask;
+ shorts0 += pix0;
+ shorts0 ^= signs0;
+ /* Clamp. */
+ shorts0 = maxsw4(shorts0, 0);
+ shorts0 = minsw4(shorts0, clampmask);
+
+ /* Next 4. */
+ pix1 = unpkbw(ldl(pixels + 4));
+ signs1 = shorts1 & signmask;
+ shorts1 &= ~signmask;
+ shorts1 += pix1;
+ shorts1 ^= signs1;
+ shorts1 = maxsw4(shorts1, 0);
+ shorts1 = minsw4(shorts1, clampmask);
+
+ stl(pkwb(shorts0), pixels);
+ stl(pkwb(shorts1), pixels + 4);
+
+ pixels += line_size;
+ block += 8;
+ } while (--h);
+}
+#endif
+
+static void clear_blocks_axp(DCTELEM *blocks) {
+ uint64_t *p = (uint64_t *) blocks;
+ int n = sizeof(DCTELEM) * 6 * 64;
+
+ do {
+ p[0] = 0;
+ p[1] = 0;
+ p[2] = 0;
+ p[3] = 0;
+ p[4] = 0;
+ p[5] = 0;
+ p[6] = 0;
+ p[7] = 0;
+ p += 8;
+ n -= 8 * 8;
+ } while (n);
+}
+
+static inline uint64_t avg2_no_rnd(uint64_t a, uint64_t b)
+{
+ return (a & b) + (((a ^ b) & BYTE_VEC(0xfe)) >> 1);
+}
+
+static inline uint64_t avg2(uint64_t a, uint64_t b)
+{
+ return (a | b) - (((a ^ b) & BYTE_VEC(0xfe)) >> 1);
+}
+
+#if 0
+/* The XY2 routines basically utilize this scheme, but reuse parts in
+ each iteration. */
+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;
+}
+#endif
+
+#define OP(LOAD, STORE) \
+ do { \
+ STORE(LOAD(pixels), block); \
+ pixels += line_size; \
+ block += line_size; \
+ } while (--h)
+
+#define OP_X2(LOAD, STORE) \
+ do { \
+ uint64_t pix1, pix2; \
+ \
+ pix1 = LOAD(pixels); \
+ pix2 = pix1 >> 8 | ((uint64_t) pixels[8] << 56); \
+ STORE(AVG2(pix1, pix2), block); \
+ pixels += line_size; \
+ block += line_size; \
+ } while (--h)
+
+#define OP_Y2(LOAD, STORE) \
+ do { \
+ uint64_t pix = LOAD(pixels); \
+ do { \
+ uint64_t next_pix; \
+ \
+ pixels += line_size; \
+ next_pix = LOAD(pixels); \
+ STORE(AVG2(pix, next_pix), block); \
+ block += line_size; \
+ pix = next_pix; \
+ } while (--h); \
+ } while (0)
+
+#define OP_XY2(LOAD, STORE) \
+ do { \
+ uint64_t pix1 = LOAD(pixels); \
+ uint64_t pix2 = pix1 >> 8 | ((uint64_t) pixels[8] << 56); \
+ uint64_t pix_l = (pix1 & BYTE_VEC(0x03)) \
+ + (pix2 & BYTE_VEC(0x03)); \
+ uint64_t pix_h = ((pix1 & ~BYTE_VEC(0x03)) >> 2) \
+ + ((pix2 & ~BYTE_VEC(0x03)) >> 2); \
+ \
+ do { \
+ uint64_t npix1, npix2; \
+ uint64_t npix_l, npix_h; \
+ uint64_t avg; \
+ \
+ pixels += line_size; \
+ npix1 = LOAD(pixels); \
+ npix2 = npix1 >> 8 | ((uint64_t) pixels[8] << 56); \
+ npix_l = (npix1 & BYTE_VEC(0x03)) \
+ + (npix2 & BYTE_VEC(0x03)); \
+ npix_h = ((npix1 & ~BYTE_VEC(0x03)) >> 2) \
+ + ((npix2 & ~BYTE_VEC(0x03)) >> 2); \
+ avg = (((pix_l + npix_l + AVG4_ROUNDER) >> 2) & BYTE_VEC(0x03)) \
+ + pix_h + npix_h; \
+ STORE(avg, block); \
+ \
+ block += line_size; \
+ pix_l = npix_l; \
+ pix_h = npix_h; \
+ } while (--h); \
+ } while (0)
+
+#define MAKE_OP(OPNAME, SUFF, OPKIND, STORE) \
+static void OPNAME ## _pixels ## SUFF ## _axp \
+ (uint8_t *restrict block, const uint8_t *restrict pixels, \
+ int line_size, int h) \
+{ \
+ if ((size_t) pixels & 0x7) { \
+ OPKIND(uldq, STORE); \
+ } else { \
+ OPKIND(ldq, STORE); \
+ } \
+} \
+ \
+static void OPNAME ## _pixels16 ## SUFF ## _axp \
+ (uint8_t *restrict block, const uint8_t *restrict pixels, \
+ int line_size, int h) \
+{ \
+ OPNAME ## _pixels ## SUFF ## _axp(block, pixels, line_size, h); \
+ OPNAME ## _pixels ## SUFF ## _axp(block + 8, pixels + 8, line_size, h); \
+}
+
+#define PIXOP(OPNAME, STORE) \
+ MAKE_OP(OPNAME, , OP, STORE) \
+ MAKE_OP(OPNAME, _x2, OP_X2, STORE) \
+ MAKE_OP(OPNAME, _y2, OP_Y2, STORE) \
+ MAKE_OP(OPNAME, _xy2, OP_XY2, STORE)
+
+/* Rounding primitives. */
+#define AVG2 avg2
+#define AVG4 avg4
+#define AVG4_ROUNDER BYTE_VEC(0x02)
+#define STORE(l, b) stq(l, b)
+PIXOP(put, STORE);
+
+#undef STORE
+#define STORE(l, b) stq(AVG2(l, ldq(b)), b);
+PIXOP(avg, STORE);
+
+/* Not rounding primitives. */
+#undef AVG2
+#undef AVG4
+#undef AVG4_ROUNDER
+#undef STORE
+#define AVG2 avg2_no_rnd
+#define AVG4 avg4_no_rnd
+#define AVG4_ROUNDER BYTE_VEC(0x01)
+#define STORE(l, b) stq(l, b)
+PIXOP(put_no_rnd, STORE);
+
+#undef STORE
+#define STORE(l, b) stq(AVG2(l, ldq(b)), b);
+PIXOP(avg_no_rnd, STORE);
+
+void put_pixels16_axp_asm(uint8_t *block, const uint8_t *pixels,
+ int line_size, int h)
+{
+ put_pixels_axp_asm(block, pixels, line_size, h);
+ put_pixels_axp_asm(block + 8, pixels + 8, line_size, h);
+}
+
+static int sad16x16_mvi(void *s, uint8_t *a, uint8_t *b, int stride)
+{
+ return pix_abs16x16_mvi_asm(a, b, stride);
+}
+
+void dsputil_init_alpha(DSPContext* c, AVCodecContext *avctx)
+{
+ c->put_pixels_tab[0][0] = put_pixels16_axp_asm;
+ c->put_pixels_tab[0][1] = put_pixels16_x2_axp;
+ c->put_pixels_tab[0][2] = put_pixels16_y2_axp;
+ c->put_pixels_tab[0][3] = put_pixels16_xy2_axp;
+
+ c->put_no_rnd_pixels_tab[0][0] = put_pixels16_axp_asm;
+ c->put_no_rnd_pixels_tab[0][1] = put_no_rnd_pixels16_x2_axp;
+ c->put_no_rnd_pixels_tab[0][2] = put_no_rnd_pixels16_y2_axp;
+ c->put_no_rnd_pixels_tab[0][3] = put_no_rnd_pixels16_xy2_axp;
+
+ c->avg_pixels_tab[0][0] = avg_pixels16_axp;
+ c->avg_pixels_tab[0][1] = avg_pixels16_x2_axp;
+ c->avg_pixels_tab[0][2] = avg_pixels16_y2_axp;
+ c->avg_pixels_tab[0][3] = avg_pixels16_xy2_axp;
+
+ c->avg_no_rnd_pixels_tab[0][0] = avg_no_rnd_pixels16_axp;
+ c->avg_no_rnd_pixels_tab[0][1] = avg_no_rnd_pixels16_x2_axp;
+ c->avg_no_rnd_pixels_tab[0][2] = avg_no_rnd_pixels16_y2_axp;
+ c->avg_no_rnd_pixels_tab[0][3] = avg_no_rnd_pixels16_xy2_axp;
+
+ c->put_pixels_tab[1][0] = put_pixels_axp_asm;
+ c->put_pixels_tab[1][1] = put_pixels_x2_axp;
+ c->put_pixels_tab[1][2] = put_pixels_y2_axp;
+ c->put_pixels_tab[1][3] = put_pixels_xy2_axp;
+
+ c->put_no_rnd_pixels_tab[1][0] = put_pixels_axp_asm;
+ c->put_no_rnd_pixels_tab[1][1] = put_no_rnd_pixels_x2_axp;
+ c->put_no_rnd_pixels_tab[1][2] = put_no_rnd_pixels_y2_axp;
+ c->put_no_rnd_pixels_tab[1][3] = put_no_rnd_pixels_xy2_axp;
+
+ c->avg_pixels_tab[1][0] = avg_pixels_axp;
+ c->avg_pixels_tab[1][1] = avg_pixels_x2_axp;
+ c->avg_pixels_tab[1][2] = avg_pixels_y2_axp;
+ c->avg_pixels_tab[1][3] = avg_pixels_xy2_axp;
+
+ c->avg_no_rnd_pixels_tab[1][0] = avg_no_rnd_pixels_axp;
+ c->avg_no_rnd_pixels_tab[1][1] = avg_no_rnd_pixels_x2_axp;
+ c->avg_no_rnd_pixels_tab[1][2] = avg_no_rnd_pixels_y2_axp;
+ c->avg_no_rnd_pixels_tab[1][3] = avg_no_rnd_pixels_xy2_axp;
+
+ c->clear_blocks = clear_blocks_axp;
+
+ /* amask clears all bits that correspond to present features. */
+ if (amask(AMASK_MVI) == 0) {
+ c->put_pixels_clamped = put_pixels_clamped_mvi_asm;
+ c->add_pixels_clamped = add_pixels_clamped_mvi_asm;
+
+ c->get_pixels = get_pixels_mvi;
+ c->diff_pixels = diff_pixels_mvi;
+ c->sad[0] = sad16x16_mvi;
+ c->sad[1] = pix_abs8x8_mvi;
+// c->pix_abs[0][0] = pix_abs16x16_mvi_asm; //FIXME function arguments for the asm must be fixed
+ c->pix_abs[0][0] = sad16x16_mvi;
+ c->pix_abs[1][0] = pix_abs8x8_mvi;
+ c->pix_abs[0][1] = pix_abs16x16_x2_mvi;
+ c->pix_abs[0][2] = pix_abs16x16_y2_mvi;
+ c->pix_abs[0][3] = pix_abs16x16_xy2_mvi;
+ }
+
+ put_pixels_clamped_axp_p = c->put_pixels_clamped;
+ add_pixels_clamped_axp_p = c->add_pixels_clamped;
+
+ c->idct_put = simple_idct_put_axp;
+ c->idct_add = simple_idct_add_axp;
+ c->idct = simple_idct_axp;
+}
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