Changeset b04c6c66f43e941f33469519f1ff7d15faeeb929

Timestamp:

05/03/08 14:48:17 (2 months ago)

Author:

Rémi Denis-Courmont <rem@videolan.org>

git-committer:

Rémi Denis-Courmont <rem@videolan.org> 1209818897 +0300

git-parent:

[0b776c28b4446eed12dcc984b07f5fcae06d4b6d]

git-author:

Rémi Denis-Courmont <rem@videolan.org> 1209818477 +0300

Message:

Process-wide memcpy/memset accelarations

(CPU features don't change across libvlc instances)

Files:

• include/vlc_common.h (modified) (1 diff)
• src/libvlc.sym (modified) (1 diff)
• src/misc/cpu.c (modified) (1 diff)

include/vlc_common.h

@@ -884 +884 @@
-#define CPU_CAPABILITY_FPU     (1<<31)
-VLC_EXPORT( unsigned, vlc_CPU, ( void ) );
+VLC_EXPORT( void *, vlc_memcpy, ( void *, const void *, size_t ) );
+VLC_EXPORT( void *, vlc_memset, ( void *, int, size_t ) );
+
+typedef void *(*vlc_memcpy_t) (void *tgt, const void *src, size_t n);
+typedef void *(*vlc_memset_t) (void *tgt, int c, size_t n);
+
+VLC_EXPORT( void, vlc_fastmem_register, (vlc_memcpy_t cpy, vlc_memset_t set) );
+VLC_EXPORT( void *, vlc_memcpy, ( vlc_object_t *, void *, const void *, size_t ) );
+VLC_EXPORT( void *, vlc_memset, ( vlc_object_t *, void *, int, size_t ) );
-
-/*****************************************************************************

src/libvlc.sym

@@ -404 +404 @@
-vlc_list_release
-vlc_lldiv
+vlc_memcpy
+vlc_memset
-vlc_module_create
-vlc_module_set

src/misc/cpu.c

@@ -357 +357 @@
-}
-
+static vlc_memcpy_t pf_vlc_memcpy = memcpy;
+static vlc_memcpy_t pf_vlc_memset = memset;
+
+void vlc_fastmem_register (vlc_memcpy_t cpy, vlc_memset_t set)
+{
+    if (cpy)
+        pf_vlc_memcpy = cpy;
+    if (set)
+        pf_vlc_memset = set;
+}
+
+/**
+ * vlc_memcpy: fast CPU-dependent memcpy
+ */
+void *vlc_memcpy (void *tgt, const void *src, size_t n)
+{
+    return pf_vlc_memcpy (tgt, src, n);
+}
+
+/**
+ * vlc_memset: fast CPU-dependent memset
+ */
+void *vlc_memset (void *tgt, int c, size_t n)
+{
+    return pf_vlc_memset (tgt, c, n);
+}