Merge commit '0d439fbede03854eac8a978cccf21a3425a3c82d'

* commit '0d439fbede03854eac8a978cccf21a3425a3c82d':
  dsputil: Split off HuffYUV decoding bits into their own context

Conflicts:
	configure
	libavcodec/dsputil.c
	libavcodec/dsputil.h
	libavcodec/huffyuv.h
	libavcodec/huffyuvdec.c
	libavcodec/lagarith.c
	libavcodec/vble.c
	libavcodec/x86/Makefile
	libavcodec/x86/dsputil.asm
	libavcodec/x86/dsputil_init.c
	libavcodec/x86/dsputil_mmx.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>

1 files changed, 91 insertions, 0 deletions

diff --git a/libavcodec/x86/huffyuvdsp_mmx.c b/libavcodec/x86/huffyuvdsp_mmx.c
new file mode 100644
index 0000000000..59422107d3
--- /dev/null
+++ b/libavcodec/x86/huffyuvdsp_mmx.c
@@ -0,0 +1,91 @@
+/*
+ * Copyright (c) 2009 Loren Merritt <lorenm@u.washington.edu>
+ *
+ * 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 "config.h"
+#include "libavutil/x86/asm.h"
+#include "huffyuvdsp.h"
+
+#if HAVE_INLINE_ASM
+
+#if HAVE_7REGS
+void ff_add_hfyu_median_pred_cmov(uint8_t *dst, const uint8_t *top,
+                                  const uint8_t *diff, int w,
+                                  int *left, int *left_top)
+{
+    x86_reg w2 = -w;
+    x86_reg x;
+    int l  = *left     & 0xff;
+    int tl = *left_top & 0xff;
+    int t;
+    __asm__ volatile (
+        "mov          %7, %3            \n"
+        "1:                             \n"
+        "movzbl (%3, %4), %2            \n"
+        "mov          %2, %k3           \n"
+        "sub         %b1, %b3           \n"
+        "add         %b0, %b3           \n"
+        "mov          %2, %1            \n"
+        "cmp          %0, %2            \n"
+        "cmovg        %0, %2            \n"
+        "cmovg        %1, %0            \n"
+        "cmp         %k3, %0            \n"
+        "cmovg       %k3, %0            \n"
+        "mov          %7, %3            \n"
+        "cmp          %2, %0            \n"
+        "cmovl        %2, %0            \n"
+        "add    (%6, %4), %b0           \n"
+        "mov         %b0, (%5, %4)      \n"
+        "inc          %4                \n"
+        "jl           1b                \n"
+        : "+&q"(l), "+&q"(tl), "=&r"(t), "=&q"(x), "+&r"(w2)
+        : "r"(dst + w), "r"(diff + w), "rm"(top + w)
+    );
+    *left     = l;
+    *left_top = tl;
+}
+#endif
+
+void ff_add_bytes_mmx(uint8_t *dst, uint8_t *src, int w)
+{
+    x86_reg i = 0;
+
+    __asm__ volatile (
+        "jmp          2f                \n\t"
+        "1:                             \n\t"
+        "movq   (%1, %0), %%mm0         \n\t"
+        "movq   (%2, %0), %%mm1         \n\t"
+        "paddb     %%mm0, %%mm1         \n\t"
+        "movq      %%mm1, (%2, %0)      \n\t"
+        "movq  8(%1, %0), %%mm0         \n\t"
+        "movq  8(%2, %0), %%mm1         \n\t"
+        "paddb     %%mm0, %%mm1         \n\t"
+        "movq      %%mm1, 8(%2, %0)     \n\t"
+        "add         $16, %0            \n\t"
+        "2:                             \n\t"
+        "cmp          %3, %0            \n\t"
+        "js           1b                \n\t"
+        : "+r" (i)
+        : "r" (src), "r" (dst), "r" ((x86_reg) w - 15));
+
+    for (; i < w; i++)
+        dst[i + 0] += src[i + 0];
+}
+
+#endif /* HAVE_INLINE_ASM */