Add "mixed_refs" description suggested by Loren Merritt and update accompanying

[ffmpeg] / libavcodec / ppc / gcc_fixes.h

diff --git a/libavcodec/ppc/gcc_fixes.h b/libavcodec/ppc/gcc_fixes.h
index 855a5b4f7b17236d690919d690f63d7bd6e69718..5a4a55188a7b3a931a3578706cd835521b1d6cf8 100644 (file)
--- a/libavcodec/ppc/gcc_fixes.h
+++ b/libavcodec/ppc/gcc_fixes.h
@@ -1,7 +1,23 @@
 /*
  * gcc fixes for altivec.
- * Used to workaround broken gcc (FSF gcc-3 pre gcc-3.3) 
+ * 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_
@@ -12,11 +28,23 @@
 #endif
 
 #ifdef CONFIG_DARWIN
-#define AVV(x...) (x)
+# ifndef __MWERKS__
+#  define AVV(x...) (x)
+# else
+#  define AVV
+# endif
+#define REG_v(a) asm ( #a )
 #else
+
 #define AVV(x...) {x}
 
-#if (__GNUC__ * 100 + __GNUC_MINOR__ < 303)  
+#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).
@@ -26,60 +54,66 @@
  * http://gcc.gnu.org/ml/gcc/2003-04/msg00967.html
  */
 
-static inline vector signed char my_vmrglb (vector signed char const A,
-                                         vector signed char const B)
+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
+        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 my_vmrglh (vector signed short const A,
-                                         vector signed short const B)
+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
+        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 my_vmrglw (vector signed int const A,
-                                         vector signed int const B)
+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
+        0x08, 0x09, 0x0a, 0x0b, 0x18, 0x19, 0x1a, 0x1b,
+        0x0c, 0x0d, 0x0e, 0x0f, 0x1c, 0x1d, 0x1e, 0x1f
     };
     return vec_perm (A, B, lowword);
 }
-/*#define my_vmrglb my_vmrglb 
-#define my_vmrglh my_vmrglh 
-#define my_vmrglw my_vmrglw 
+/*#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) my_vmrglb ((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) my_vmrglb ((vector signed char) (a1), (vector signed 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) my_vmrglh ((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) my_vmrglh ((vector signed short) (a1), (vector signed 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) my_vmrglw ((vector signed int) (a1), (vector signed int) (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) my_vmrglw ((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) my_vmrglw ((vector signed int) (a1), (vector signed 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_ */