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authorJosé Fonseca <jfonseca@vmware.com>2010-01-10 12:58:11 +0000
committerJosé Fonseca <jfonseca@vmware.com>2010-01-12 12:11:04 +0000
commit86bfe974b880dc2cbf40b91ba0fde34e8a9c756e (patch)
tree43f6555b51e472c4188a06c2eb2ec09ccd58ebac /src/gallium/include
parentce1c493ff8fad4b62e2b66f06636ac6560a6e0ad (diff)
gallium: Generalize the alignment macros to other compilers and any alignment.
Diffstat (limited to 'src/gallium/include')
-rw-r--r--src/gallium/include/pipe/p_compiler.h29
1 files changed, 20 insertions, 9 deletions
diff --git a/src/gallium/include/pipe/p_compiler.h b/src/gallium/include/pipe/p_compiler.h
index 26a940593f..80610a07b6 100644
--- a/src/gallium/include/pipe/p_compiler.h
+++ b/src/gallium/include/pipe/p_compiler.h
@@ -139,22 +139,33 @@ typedef unsigned char boolean;
+/* Macros for data alignment. */
#if defined(__GNUC__)
-#define ALIGN16_DECL(TYPE, NAME, SIZE) TYPE NAME##___aligned[SIZE] __attribute__(( aligned( 16 ) ))
-#define ALIGN16_ASSIGN(NAME) NAME##___aligned
-#define ALIGN16_ATTRIB __attribute__(( aligned( 16 ) ))
-#define ALIGN8_ATTRIB __attribute__(( aligned( 8 ) ))
+
+/* See http://gcc.gnu.org/onlinedocs/gcc-4.4.2/gcc/Type-Attributes.html */
+#define PIPE_ALIGN_TYPE(_alignment, _type) _type __attribute__((aligned(_alignment)))
+
+/* See http://gcc.gnu.org/onlinedocs/gcc-4.4.2/gcc/Variable-Attributes.html */
+#define PIPE_ALIGN_VAR(_alignment, _decl) _decl __attribute__((aligned(_alignment)))
+
#if (__GNUC__ > 4 || (__GNUC__ == 4 &&__GNUC_MINOR__>1)) && !defined(PIPE_ARCH_X86_64)
#define ALIGN_STACK __attribute__((force_align_arg_pointer))
#else
#define ALIGN_STACK
#endif
-#else
-#define ALIGN16_DECL(TYPE, NAME, SIZE) TYPE NAME##___unaligned[SIZE + 1]
-#define ALIGN16_ASSIGN(NAME) align16(NAME##___unaligned)
-#define ALIGN16_ATTRIB
-#define ALIGN8_ATTRIB
+
+#elif defined(_MSC_VER)
+
+/* See http://msdn.microsoft.com/en-us/library/83ythb65.aspx */
+#define PIPE_ALIGN_TYPE(_alignment, _type) __declspec(align(_alignment)) _type
+#define PIPE_ALIGN_VAR(_alignment, _decl) __declspec(align(_alignment)) _decl
+
#define ALIGN_STACK
+
+#else
+
+#error "Unsupported compiler"
+
#endif