Changeset abf2dfd in mainline for abi/include/abi/fourcc.h

Timestamp:

2015-08-18T17:52:25Z (9 years ago)

Author:

Martin Decky <martin@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

6a8ce16

Parents:

b688fd8

Message:

preparations for interface types

File:

• abi/include/abi/fourcc.h (moved) (moved from uspace/lib/c/include/fourcc.h ) (2 diffs)

abi/include/abi/fourcc.h

@@ -33 +33 @@
  */
 
-#ifndef LIBC_FOURCC_H_
-#define LIBC_FOURCC_H_
-
-#include <libarch/common.h>
-
-typedef uint32_t fourcc_t;
+#ifndef ABI_FOURCC_H_
+#define ABI_FOURCC_H_
 
 #define FOURCC(a, b, c, d) \
@@ -44 +40 @@
             (((UINT32_T) (c)) << 16) | (((UINT32_T) (d)) << 24))
 
+#define CC_COMPACT(a) \
+        ((((UINT32_T) (a)) & 0x7c) >> 2)
+
+#define FOURCC_COMPACT(a, b, c, d) \
+        ((CC_COMPACT(a) << 12) | (CC_COMPACT(b) << 17) | \
+            (CC_COMPACT(c) << 22) | (CC_COMPACT(d) << 27))
+
 #endif