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-rw-r--r--libavfilter/x86/vf_spp.c237
1 files changed, 237 insertions, 0 deletions
diff --git a/libavfilter/x86/vf_spp.c b/libavfilter/x86/vf_spp.c
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+++ b/libavfilter/x86/vf_spp.c
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+/*
+ * Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU 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 "libavutil/attributes.h"
+#include "libavutil/cpu.h"
+#include "libavutil/mem.h"
+#include "libavutil/x86/asm.h"
+#include "libavfilter/vf_spp.h"
+
+#if HAVE_MMX_INLINE
+static void hardthresh_mmx(int16_t dst[64], const int16_t src[64],
+ int qp, const uint8_t *permutation)
+{
+ int bias = 0; //FIXME
+ unsigned int threshold1;
+
+ threshold1 = qp * ((1<<4) - bias) - 1;
+
+#define REQUANT_CORE(dst0, dst1, dst2, dst3, src0, src1, src2, src3) \
+ "movq " #src0 ", %%mm0 \n" \
+ "movq " #src1 ", %%mm1 \n" \
+ "movq " #src2 ", %%mm2 \n" \
+ "movq " #src3 ", %%mm3 \n" \
+ "psubw %%mm4, %%mm0 \n" \
+ "psubw %%mm4, %%mm1 \n" \
+ "psubw %%mm4, %%mm2 \n" \
+ "psubw %%mm4, %%mm3 \n" \
+ "paddusw %%mm5, %%mm0 \n" \
+ "paddusw %%mm5, %%mm1 \n" \
+ "paddusw %%mm5, %%mm2 \n" \
+ "paddusw %%mm5, %%mm3 \n" \
+ "paddw %%mm6, %%mm0 \n" \
+ "paddw %%mm6, %%mm1 \n" \
+ "paddw %%mm6, %%mm2 \n" \
+ "paddw %%mm6, %%mm3 \n" \
+ "psubusw %%mm6, %%mm0 \n" \
+ "psubusw %%mm6, %%mm1 \n" \
+ "psubusw %%mm6, %%mm2 \n" \
+ "psubusw %%mm6, %%mm3 \n" \
+ "psraw $3, %%mm0 \n" \
+ "psraw $3, %%mm1 \n" \
+ "psraw $3, %%mm2 \n" \
+ "psraw $3, %%mm3 \n" \
+ \
+ "movq %%mm0, %%mm7 \n" \
+ "punpcklwd %%mm2, %%mm0 \n" /*A*/ \
+ "punpckhwd %%mm2, %%mm7 \n" /*C*/ \
+ "movq %%mm1, %%mm2 \n" \
+ "punpcklwd %%mm3, %%mm1 \n" /*B*/ \
+ "punpckhwd %%mm3, %%mm2 \n" /*D*/ \
+ "movq %%mm0, %%mm3 \n" \
+ "punpcklwd %%mm1, %%mm0 \n" /*A*/ \
+ "punpckhwd %%mm7, %%mm3 \n" /*C*/ \
+ "punpcklwd %%mm2, %%mm7 \n" /*B*/ \
+ "punpckhwd %%mm2, %%mm1 \n" /*D*/ \
+ \
+ "movq %%mm0, " #dst0 " \n" \
+ "movq %%mm7, " #dst1 " \n" \
+ "movq %%mm3, " #dst2 " \n" \
+ "movq %%mm1, " #dst3 " \n"
+
+ __asm__ volatile(
+ "movd %2, %%mm4 \n"
+ "movd %3, %%mm5 \n"
+ "movd %4, %%mm6 \n"
+ "packssdw %%mm4, %%mm4 \n"
+ "packssdw %%mm5, %%mm5 \n"
+ "packssdw %%mm6, %%mm6 \n"
+ "packssdw %%mm4, %%mm4 \n"
+ "packssdw %%mm5, %%mm5 \n"
+ "packssdw %%mm6, %%mm6 \n"
+ REQUANT_CORE( (%1), 8(%1), 16(%1), 24(%1), (%0), 8(%0), 64(%0), 72(%0))
+ REQUANT_CORE(32(%1), 40(%1), 48(%1), 56(%1),16(%0),24(%0), 48(%0), 56(%0))
+ REQUANT_CORE(64(%1), 72(%1), 80(%1), 88(%1),32(%0),40(%0), 96(%0),104(%0))
+ REQUANT_CORE(96(%1),104(%1),112(%1),120(%1),80(%0),88(%0),112(%0),120(%0))
+ : : "r" (src), "r" (dst), "g" (threshold1+1), "g" (threshold1+5), "g" (threshold1-4) //FIXME maybe more accurate then needed?
+ );
+ dst[0] = (src[0] + 4) >> 3;
+}
+
+static void softthresh_mmx(int16_t dst[64], const int16_t src[64],
+ int qp, const uint8_t *permutation)
+{
+ int bias = 0; //FIXME
+ unsigned int threshold1;
+
+ threshold1 = qp*((1<<4) - bias) - 1;
+
+#undef REQUANT_CORE
+#define REQUANT_CORE(dst0, dst1, dst2, dst3, src0, src1, src2, src3) \
+ "movq " #src0 ", %%mm0 \n" \
+ "movq " #src1 ", %%mm1 \n" \
+ "pxor %%mm6, %%mm6 \n" \
+ "pxor %%mm7, %%mm7 \n" \
+ "pcmpgtw %%mm0, %%mm6 \n" \
+ "pcmpgtw %%mm1, %%mm7 \n" \
+ "pxor %%mm6, %%mm0 \n" \
+ "pxor %%mm7, %%mm1 \n" \
+ "psubusw %%mm4, %%mm0 \n" \
+ "psubusw %%mm4, %%mm1 \n" \
+ "pxor %%mm6, %%mm0 \n" \
+ "pxor %%mm7, %%mm1 \n" \
+ "movq " #src2 ", %%mm2 \n" \
+ "movq " #src3 ", %%mm3 \n" \
+ "pxor %%mm6, %%mm6 \n" \
+ "pxor %%mm7, %%mm7 \n" \
+ "pcmpgtw %%mm2, %%mm6 \n" \
+ "pcmpgtw %%mm3, %%mm7 \n" \
+ "pxor %%mm6, %%mm2 \n" \
+ "pxor %%mm7, %%mm3 \n" \
+ "psubusw %%mm4, %%mm2 \n" \
+ "psubusw %%mm4, %%mm3 \n" \
+ "pxor %%mm6, %%mm2 \n" \
+ "pxor %%mm7, %%mm3 \n" \
+ \
+ "paddsw %%mm5, %%mm0 \n" \
+ "paddsw %%mm5, %%mm1 \n" \
+ "paddsw %%mm5, %%mm2 \n" \
+ "paddsw %%mm5, %%mm3 \n" \
+ "psraw $3, %%mm0 \n" \
+ "psraw $3, %%mm1 \n" \
+ "psraw $3, %%mm2 \n" \
+ "psraw $3, %%mm3 \n" \
+ \
+ "movq %%mm0, %%mm7 \n" \
+ "punpcklwd %%mm2, %%mm0 \n" /*A*/ \
+ "punpckhwd %%mm2, %%mm7 \n" /*C*/ \
+ "movq %%mm1, %%mm2 \n" \
+ "punpcklwd %%mm3, %%mm1 \n" /*B*/ \
+ "punpckhwd %%mm3, %%mm2 \n" /*D*/ \
+ "movq %%mm0, %%mm3 \n" \
+ "punpcklwd %%mm1, %%mm0 \n" /*A*/ \
+ "punpckhwd %%mm7, %%mm3 \n" /*C*/ \
+ "punpcklwd %%mm2, %%mm7 \n" /*B*/ \
+ "punpckhwd %%mm2, %%mm1 \n" /*D*/ \
+ \
+ "movq %%mm0, " #dst0 " \n" \
+ "movq %%mm7, " #dst1 " \n" \
+ "movq %%mm3, " #dst2 " \n" \
+ "movq %%mm1, " #dst3 " \n"
+
+ __asm__ volatile(
+ "movd %2, %%mm4 \n"
+ "movd %3, %%mm5 \n"
+ "packssdw %%mm4, %%mm4 \n"
+ "packssdw %%mm5, %%mm5 \n"
+ "packssdw %%mm4, %%mm4 \n"
+ "packssdw %%mm5, %%mm5 \n"
+ REQUANT_CORE( (%1), 8(%1), 16(%1), 24(%1), (%0), 8(%0), 64(%0), 72(%0))
+ REQUANT_CORE(32(%1), 40(%1), 48(%1), 56(%1),16(%0),24(%0), 48(%0), 56(%0))
+ REQUANT_CORE(64(%1), 72(%1), 80(%1), 88(%1),32(%0),40(%0), 96(%0),104(%0))
+ REQUANT_CORE(96(%1),104(%1),112(%1),120(%1),80(%0),88(%0),112(%0),120(%0))
+ : : "r" (src), "r" (dst), "g" (threshold1), "rm" (4) //FIXME maybe more accurate then needed?
+ );
+
+ dst[0] = (src[0] + 4) >> 3;
+}
+
+static void store_slice_mmx(uint8_t *dst, const int16_t *src,
+ int dst_stride, int src_stride,
+ int width, int height, int log2_scale,
+ const uint8_t dither[8][8])
+{
+ int y;
+
+ for (y = 0; y < height; y++) {
+ uint8_t *dst1 = dst;
+ const int16_t *src1 = src;
+ __asm__ volatile(
+ "movq (%3), %%mm3 \n"
+ "movq (%3), %%mm4 \n"
+ "movd %4, %%mm2 \n"
+ "pxor %%mm0, %%mm0 \n"
+ "punpcklbw %%mm0, %%mm3 \n"
+ "punpckhbw %%mm0, %%mm4 \n"
+ "psraw %%mm2, %%mm3 \n"
+ "psraw %%mm2, %%mm4 \n"
+ "movd %5, %%mm2 \n"
+ "1: \n"
+ "movq (%0), %%mm0 \n"
+ "movq 8(%0), %%mm1 \n"
+ "paddw %%mm3, %%mm0 \n"
+ "paddw %%mm4, %%mm1 \n"
+ "psraw %%mm2, %%mm0 \n"
+ "psraw %%mm2, %%mm1 \n"
+ "packuswb %%mm1, %%mm0 \n"
+ "movq %%mm0, (%1) \n"
+ "add $16, %0 \n"
+ "add $8, %1 \n"
+ "cmp %2, %1 \n"
+ " jb 1b \n"
+ : "+r" (src1), "+r"(dst1)
+ : "r"(dst + width), "r"(dither[y]), "g"(log2_scale), "g"(MAX_LEVEL - log2_scale)
+ );
+ src += src_stride;
+ dst += dst_stride;
+ }
+}
+
+#endif /* HAVE_MMX_INLINE */
+
+av_cold void ff_spp_init_x86(SPPContext *s)
+{
+#if HAVE_MMX_INLINE
+ int cpu_flags = av_get_cpu_flags();
+
+ if (cpu_flags & AV_CPU_FLAG_MMX) {
+ int64_t bps;
+ s->store_slice = store_slice_mmx;
+ av_opt_get_int(s->dct, "bits_per_sample", 0, &bps);
+ if (bps <= 8) {
+ switch (s->mode) {
+ case 0: s->requantize = hardthresh_mmx; break;
+ case 1: s->requantize = softthresh_mmx; break;
+ }
+ }
+ }
+#endif
+}
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