1 files changed, 119 insertions, 0 deletions
diff --git a/contrib/ffmpeg/libavcodec/ppc/gcc_fixes.h b/contrib/ffmpeg/libavcodec/ppc/gcc_fixes.h
new file mode 100644
index 000000000..5a4a55188
--- /dev/null
+++ b/contrib/ffmpeg/libavcodec/ppc/gcc_fixes.h
@@ -0,0 +1,119 @@
+/*
+ * gcc fixes for altivec.
+ * Used to workaround broken gcc (FSF gcc-3 pre gcc-3.3)
+ * and to stay somewhat compatible with Darwin.
+ *
+ * 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
+ */
+
+#ifndef _GCC_FIXES_
+#define _GCC_FIXES_
+
+#ifdef HAVE_ALTIVEC_H
+#include <altivec.h>
+#endif
+
+#ifdef CONFIG_DARWIN
+# ifndef __MWERKS__
+#  define AVV(x...) (x)
+# else
+#  define AVV
+# endif
+#define REG_v(a) asm ( #a )
+#else
+
+#define AVV(x...) {x}
+
+#if (__GNUC__ < 4)
+# define REG_v(a)
+#else
+# define REG_v(a) asm ( #a )
+#endif
+
+#if (__GNUC__ * 100 + __GNUC_MINOR__ < 303)
+
+/* This code was provided to me by Bartosch Pixa
+ * as a separate header file (broken_mergel.h).
+ * thanks to lu_zero for the workaround.
+ *
+ * See this mail for more information:
+ * http://gcc.gnu.org/ml/gcc/2003-04/msg00967.html
+ */
+
+static inline vector signed char ff_vmrglb (vector signed char const A,
+                                          vector signed char const B)
+{
+    static const vector unsigned char lowbyte = {
+        0x08, 0x18, 0x09, 0x19, 0x0a, 0x1a, 0x0b,  0x1b,
+        0x0c, 0x1c, 0x0d, 0x1d, 0x0e, 0x1e, 0x0f, 0x1f
+    };
+    return vec_perm (A, B, lowbyte);
+}
+
+static inline vector signed short ff_vmrglh (vector signed short const A,
+                                          vector signed short const B)
+{
+    static const vector unsigned char lowhalf = {
+        0x08, 0x09, 0x18, 0x19, 0x0a, 0x0b, 0x1a, 0x1b,
+        0x0c, 0x0d, 0x1c, 0x1d, 0x0e, 0x0f, 0x1e, 0x1f
+    };
+    return vec_perm (A, B, lowhalf);
+}
+
+static inline vector signed int ff_vmrglw (vector signed int const A,
+                                          vector signed int const B)
+{
+    static const vector unsigned char lowword = {
+        0x08, 0x09, 0x0a, 0x0b, 0x18, 0x19, 0x1a, 0x1b,
+        0x0c, 0x0d, 0x0e, 0x0f, 0x1c, 0x1d, 0x1e, 0x1f
+    };
+    return vec_perm (A, B, lowword);
+}
+/*#define ff_vmrglb ff_vmrglb
+#define ff_vmrglh ff_vmrglh
+#define ff_vmrglw ff_vmrglw
+*/
+#undef vec_mergel
+
+#define vec_mergel(a1, a2) \
+__ch (__bin_args_eq (vector signed char, (a1), vector signed char, (a2)), \
+      ((vector signed char) ff_vmrglb ((vector signed char) (a1), (vector signed char) (a2))), \
+__ch (__bin_args_eq (vector unsigned char, (a1), vector unsigned char, (a2)), \
+      ((vector unsigned char) ff_vmrglb ((vector signed char) (a1), (vector signed char) (a2))), \
+__ch (__bin_args_eq (vector signed short, (a1), vector signed short, (a2)), \
+      ((vector signed short) ff_vmrglh ((vector signed short) (a1), (vector signed short) (a2))), \
+__ch (__bin_args_eq (vector unsigned short, (a1), vector unsigned short, (a2)), \
+      ((vector unsigned short) ff_vmrglh ((vector signed short) (a1), (vector signed short) (a2))), \
+__ch (__bin_args_eq (vector float, (a1), vector float, (a2)), \
+      ((vector float) ff_vmrglw ((vector signed int) (a1), (vector signed int) (a2))), \
+__ch (__bin_args_eq (vector signed int, (a1), vector signed int, (a2)), \
+      ((vector signed int) ff_vmrglw ((vector signed int) (a1), (vector signed int) (a2))), \
+__ch (__bin_args_eq (vector unsigned int, (a1), vector unsigned int, (a2)), \
+      ((vector unsigned int) ff_vmrglw ((vector signed int) (a1), (vector signed int) (a2))), \
+    __altivec_link_error_invalid_argument ())))))))
+
+#endif
+
+#endif /* CONFIG_DARWIN */
+
+#ifndef __MWERKS__
+#define const_vector const vector
+#else
+#define const_vector vector
+#endif
+
+#endif /* _GCC_FIXES_ */