dsputil: Split off *_8x8basis to a separate context

1 files changed, 109 insertions, 0 deletions

diff --git a/libavcodec/x86/mpegvideoenc_qns_template.c b/libavcodec/x86/mpegvideoenc_qns_template.c
new file mode 100644
index 0000000000..8d8d68762a
--- /dev/null
+++ b/libavcodec/x86/mpegvideoenc_qns_template.c
@@ -0,0 +1,109 @@
+/*
+ * QNS functions are compiled 3 times for MMX/3DNOW/SSSE3
+ * Copyright (c) 2004 Michael Niedermayer
+ *
+ * MMX optimization by Michael Niedermayer <michaelni@gmx.at>
+ * 3DNow! and SSSE3 optimization by Zuxy Meng <zuxy.meng@gmail.com>
+ *
+ * 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
+ */
+
+#include <assert.h>
+#include <stdint.h>
+
+#include "libavutil/common.h"
+#include "libavutil/x86/asm.h"
+
+#include "inline_asm.h"
+
+#define MAX_ABS (512 >> (SCALE_OFFSET>0 ? SCALE_OFFSET : 0))
+
+static int DEF(try_8x8basis)(int16_t rem[64], int16_t weight[64], int16_t basis[64], int scale)
+{
+    x86_reg i=0;
+
+    assert(FFABS(scale) < MAX_ABS);
+    scale<<= 16 + SCALE_OFFSET - BASIS_SHIFT + RECON_SHIFT;
+
+    SET_RND(mm6);
+    __asm__ volatile(
+        "pxor %%mm7, %%mm7              \n\t"
+        "movd  %4, %%mm5                \n\t"
+        "punpcklwd %%mm5, %%mm5         \n\t"
+        "punpcklwd %%mm5, %%mm5         \n\t"
+        ".p2align 4                     \n\t"
+        "1:                             \n\t"
+        "movq  (%1, %0), %%mm0          \n\t"
+        "movq  8(%1, %0), %%mm1         \n\t"
+        PMULHRW(%%mm0, %%mm1, %%mm5, %%mm6)
+        "paddw (%2, %0), %%mm0          \n\t"
+        "paddw 8(%2, %0), %%mm1         \n\t"
+        "psraw $6, %%mm0                \n\t"
+        "psraw $6, %%mm1                \n\t"
+        "pmullw (%3, %0), %%mm0         \n\t"
+        "pmullw 8(%3, %0), %%mm1        \n\t"
+        "pmaddwd %%mm0, %%mm0           \n\t"
+        "pmaddwd %%mm1, %%mm1           \n\t"
+        "paddd %%mm1, %%mm0             \n\t"
+        "psrld $4, %%mm0                \n\t"
+        "paddd %%mm0, %%mm7             \n\t"
+        "add $16, %0                    \n\t"
+        "cmp $128, %0                   \n\t" //FIXME optimize & bench
+        " jb 1b                         \n\t"
+        PHADDD(%%mm7, %%mm6)
+        "psrld $2, %%mm7                \n\t"
+        "movd %%mm7, %0                 \n\t"
+
+        : "+r" (i)
+        : "r"(basis), "r"(rem), "r"(weight), "g"(scale)
+    );
+    return i;
+}
+
+static void DEF(add_8x8basis)(int16_t rem[64], int16_t basis[64], int scale)
+{
+    x86_reg i=0;
+
+    if(FFABS(scale) < MAX_ABS){
+        scale<<= 16 + SCALE_OFFSET - BASIS_SHIFT + RECON_SHIFT;
+        SET_RND(mm6);
+        __asm__ volatile(
+                "movd  %3, %%mm5        \n\t"
+                "punpcklwd %%mm5, %%mm5 \n\t"
+                "punpcklwd %%mm5, %%mm5 \n\t"
+                ".p2align 4             \n\t"
+                "1:                     \n\t"
+                "movq  (%1, %0), %%mm0  \n\t"
+                "movq  8(%1, %0), %%mm1 \n\t"
+                PMULHRW(%%mm0, %%mm1, %%mm5, %%mm6)
+                "paddw (%2, %0), %%mm0  \n\t"
+                "paddw 8(%2, %0), %%mm1 \n\t"
+                "movq %%mm0, (%2, %0)   \n\t"
+                "movq %%mm1, 8(%2, %0)  \n\t"
+                "add $16, %0            \n\t"
+                "cmp $128, %0           \n\t" // FIXME optimize & bench
+                " jb 1b                 \n\t"
+
+                : "+r" (i)
+                : "r"(basis), "r"(rem), "g"(scale)
+        );
+    }else{
+        for(i=0; i<8*8; i++){
+            rem[i] += (basis[i]*scale + (1<<(BASIS_SHIFT - RECON_SHIFT-1)))>>(BASIS_SHIFT - RECON_SHIFT);
+        }
+    }
+}