new libmad version, less cpu usage

1 files changed, 69 insertions, 6 deletions

diff --git a/core/multimedia/opieplayer/libmad/fixed.h b/core/multimedia/opieplayer/libmad/fixed.h
index 00ade62..c9b98ca 100644
--- a/core/multimedia/opieplayer/libmad/fixed.h
+++ b/core/multimedia/opieplayer/libmad/fixed.h
@@ -1,3 +1,3 @@
 /*
- * mad - MPEG audio decoder
+ * libmad - MPEG audio decoder library
  * Copyright (C) 2000-2001 Robert Leslie
@@ -36,2 +36,14 @@ typedef unsigned long mad_fixed64lo_t;
 
+# if defined(_MSC_VER)
+#  define mad_fixed64_t  signed __int64
+# elif 1 || defined(__GNUC__)
+#  define mad_fixed64_t  signed long long
+# endif
+
+# if defined(FPM_FLOAT)
+typedef double mad_sample_t;
+# else
+typedef mad_fixed_t mad_sample_t;
+# endif
+
 /*
@@ -96,7 +108,18 @@ typedef unsigned long mad_fixed64lo_t;
 
-# if defined(FPM_64BIT)
+# if defined(FPM_FLOAT)
+#  error "FPM_FLOAT not yet supported"
+
+#  undef MAD_F
+        #  define MAD_F(x)      mad_f_todouble(x)
+
+        #  define mad_f_mul(x, y)((x) * (y))
+#  define mad_f_scale64
+
+#  undef ASO_ZEROCHECK
+
+# elif defined(FPM_64BIT)
 
 /*
- * This version should be the most accurate if 64-bit (long long) types are
- * supported by the compiler, although it may not be the most efficient.
+ * This version should be the most accurate if 64-bit types are supported by
+ * the compiler, although it may not be the most efficient.
  */
@@ -105,3 +128,3 @@ typedef unsigned long mad_fixed64lo_t;
     ((mad_fixed_t)  \
-     ((((signed long long) (x) * (y)) +  \
+     ((((mad_fixed64_t) (x) * (y)) +  \
        (1L << (MAD_F_SCALEBITS - 1))) >> MAD_F_SCALEBITS))
@@ -109,3 +132,3 @@ typedef unsigned long mad_fixed64lo_t;
 #   define mad_f_mul(x, y)  \
-    ((mad_fixed_t) (((signed long long) (x) * (y)) >> MAD_F_SCALEBITS))
+    ((mad_fixed_t) (((mad_fixed64_t) (x) * (y)) >> MAD_F_SCALEBITS))
 #  endif
@@ -118,2 +141,25 @@ typedef unsigned long mad_fixed64lo_t;
 
+#  if defined(_MSC_VER)
+#   pragma warning(push)
+#   pragma warning(disable: 4035)  /* no return value */
+static __forceinline
+mad_fixed_t mad_f_mul_inline(mad_fixed_t x, mad_fixed_t y)
+{
+  enum {
+    fracbits = MAD_F_FRACBITS
+  };
+
+  __asm {
+    mov eax, x
+    imul y
+    shrd eax, edx, fracbits
+  }
+
+  /* implicit return of eax */
+}
+#   pragma warning(pop)
+
+        #   define mad_f_mul    mad_f_mul_inline
+#   define mad_f_scale64
+#  else
 /*
@@ -176,2 +222,3 @@ typedef unsigned long mad_fixed64lo_t;
 #  define MAD_F_SCALEBITS  MAD_F_FRACBITS
+#  endif
 
@@ -219,2 +266,9 @@ typedef unsigned long mad_fixed64lo_t;
 
+#  define MAD_F_MLN(hi, lo)  \
+            asm ("rsbs%0, %2, #0\n\t"  \
+                 "rsc%1, %3, #0"  \
+         : "=r" (lo), "=r" (hi)  \
+         : "0" (lo), "1" (hi)  \
+         : "cc")
+
 #  define mad_f_scale64(hi, lo)  \
@@ -359,4 +413,8 @@ typedef unsigned long mad_fixed64lo_t;
  */
+#  if defined(OPT_SPEED)
+        #   define mad_f_mul(x, y)(((x) >> 12) * ((y) >> 16))
+#  else
         #  define mad_f_mul(x, y)((((x) + (1L << 11)) >> 12) *  \
                                  (((y) + (1L << 15)) >> 16))
+#  endif
 
@@ -382,2 +440,3 @@ typedef unsigned long mad_fixed64lo_t;
         #  define MAD_F_MLA(hi, lo, x, y)((lo) += mad_f_mul((x), (y)))
+        #  define MAD_F_MLN(hi, lo)     ((lo)  = -(lo))
         #  define MAD_F_MLZ(hi, lo)     ((void) (hi), (mad_fixed_t) (lo))
@@ -389,2 +448,6 @@ typedef unsigned long mad_fixed64lo_t;
 
+# if !defined(MAD_F_MLN)
+        #  define MAD_F_MLN(hi, lo)     ((hi) = ((lo) = -(lo)) ? ~(hi) : -(hi))
+# endif
+
 # if !defined(MAD_F_MLZ)