dnxhd get_pixels_8x4_sym sse2

Originally committed as revision 16072 to svn://svn.ffmpeg.org/ffmpeg/trunk

1 files changed, 58 insertions, 0 deletions

diff --git a/libavcodec/i386/dnxhd_mmx.c b/libavcodec/i386/dnxhd_mmx.c
new file mode 100644
index 0000000000..59bcb3929b
--- /dev/null
+++ b/libavcodec/i386/dnxhd_mmx.c
@@ -0,0 +1,58 @@
+/*
+ * VC3/DNxHD SIMD functions
+ * Copyright (c) 2007 Baptiste Coudurier <baptiste dot coudurier at smartjog dot com>
+ *
+ * VC-3 encoder funded by the British Broadcasting Corporation
+ *
+ * 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 "libavutil/x86_cpu.h"
+#include "libavcodec/dnxhdenc.h"
+
+static void get_pixels_8x4_sym_sse2(DCTELEM *block, const uint8_t *pixels, int line_size)
+{
+    __asm__ volatile(
+        "pxor %%xmm7,      %%xmm7       \n\t"
+        "movq (%0),        %%xmm0       \n\t"
+        "add  %2,          %0           \n\t"
+        "movq (%0),        %%xmm1       \n\t"
+        "movq (%0, %2),    %%xmm2       \n\t"
+        "movq (%0, %2,2),  %%xmm3       \n\t"
+        "punpcklbw %%xmm7, %%xmm0       \n\t"
+        "punpcklbw %%xmm7, %%xmm1       \n\t"
+        "punpcklbw %%xmm7, %%xmm2       \n\t"
+        "punpcklbw %%xmm7, %%xmm3       \n\t"
+        "movdqa %%xmm0,      (%1)       \n\t"
+        "movdqa %%xmm1,    16(%1)       \n\t"
+        "movdqa %%xmm2,    32(%1)       \n\t"
+        "movdqa %%xmm3,    48(%1)       \n\t"
+        "movdqa %%xmm3 ,   64(%1)       \n\t"
+        "movdqa %%xmm2 ,   80(%1)       \n\t"
+        "movdqa %%xmm1 ,   96(%1)       \n\t"
+        "movdqa %%xmm0,   112(%1)       \n\t"
+        : "+r" (pixels)
+        : "r" (block), "r" ((x86_reg)line_size)
+    );
+}
+
+void ff_dnxhd_init_mmx(DNXHDEncContext *ctx)
+{
+    if (mm_flags & FF_MM_SSE2) {
+        ctx->get_pixels_8x4_sym = get_pixels_8x4_sym_sse2;
+    }
+}