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authorBrian Paul <brian.paul@tungstengraphics.com>2002-06-03 16:06:34 +0000
committerBrian Paul <brian.paul@tungstengraphics.com>2002-06-03 16:06:34 +0000
commitf5a078197552bc956322e2fa292b034e4ccb9d82 (patch)
tree868c34dd27374bdb07d2e20ef4a1dd72e23d66b3 /src/mesa/main/macros.h
parent91d6f12b4ad4d5dde42ef0c86e4531a60f770dbd (diff)
bring over Michel Daenzer's DRI changes
Diffstat (limited to 'src/mesa/main/macros.h')
-rw-r--r--src/mesa/main/macros.h45
1 files changed, 44 insertions, 1 deletions
diff --git a/src/mesa/main/macros.h b/src/mesa/main/macros.h
index bb83b30d5d..9444975ab1 100644
--- a/src/mesa/main/macros.h
+++ b/src/mesa/main/macros.h
@@ -1,4 +1,3 @@
-/* $Id: macros.h,v 1.25 2002/02/13 00:53:19 keithw Exp $ */
/*
* Mesa 3-D graphics library
@@ -454,6 +453,19 @@ do { \
+/* Byte swapping
+ */
+
+#ifdef __BIG_ENDIAN
+#include <byteswap.h>
+#define CPU_TO_LE32( x ) bswap_32( x )
+#else
+#define CPU_TO_LE32( x ) ( x )
+#endif
+
+#define LE32_TO_CPU( x ) CPU_TO_LE32( x )
+
+
/* Generic color packing macros
*/
@@ -480,4 +492,35 @@ do { \
(((a) & 0xe0) | (((b) & 0xe0) >> 3) | (((c) & 0xc0) >> 6))
+#ifdef __BIG_ENDIAN
+
+#define PACK_COLOR_8888_LE( a, b, c, d ) PACK_COLOR_8888( d, c, b, a )
+
+#define PACK_COLOR_565_LE( a, b, c ) \
+ (((a) & 0xf8) | (((b) & 0xe0) >> 5) | (((b) & 0x1c) << 11) | \
+ (((c) & 0xf8) << 5))
+
+#define PACK_COLOR_1555_LE( a, b, c, d ) \
+ ((((b) & 0xf8) >> 1) | (((c) & 0xc0) >> 6) | (((c) & 0x38) << 10) | \
+ (((d) & 0xf8) << 5) | ((a) ? 0x80 : 0))
+
+#define PACK_COLOR_4444_LE( a, b, c, d ) PACK_COLOR_4444( c, d, a, b )
+
+#define PACK_COLOR_88_LE( a, b ) PACK_COLOR_88( b, a )
+
+#else /* little endian */
+
+#define PACK_COLOR_8888_LE( a, b, c, d ) PACK_COLOR_8888( a, b, c, d )
+
+#define PACK_COLOR_565_LE( a, b, c ) PACK_COLOR_565( a, b, c )
+
+#define PACK_COLOR_1555_LE( a, b, c, d ) PACK_COLOR_1555( a, b, c, d )
+
+#define PACK_COLOR_4444_LE( a, b, c, d ) PACK_COLOR_4444( a, b, c, d )
+
+#define PACK_COLOR_88_LE( a, b ) PACK_COLOR_88( a, b )
+
+#endif /* endianness */
+
+
#endif