gallium: Replace defines by enums

That helps the code checker to see whether all switch cases are used.

Signed-off-by: Gert Wollny <gert.wollny@collabora.com>
Reviewed-by: Gurchetan Singh <gurchetansingh@chromium.org>

src/gallium/include/pipe/p_defines.h

@@ -77,22 +77,25 @@ enum pipe_error {
 #define PIPE_BLEND_MIN               3
 #define PIPE_BLEND_MAX               4
 
-#define PIPE_LOGICOP_CLEAR            0
+
-#define PIPE_LOGICOP_NOR              1
+enum pipe_logicop {
-#define PIPE_LOGICOP_AND_INVERTED     2
+   PIPE_LOGICOP_CLEAR,
-#define PIPE_LOGICOP_COPY_INVERTED    3
+   PIPE_LOGICOP_NOR,
-#define PIPE_LOGICOP_AND_REVERSE      4
+   PIPE_LOGICOP_AND_INVERTED,
-#define PIPE_LOGICOP_INVERT           5
+   PIPE_LOGICOP_COPY_INVERTED,
-#define PIPE_LOGICOP_XOR              6
+   PIPE_LOGICOP_AND_REVERSE,
-#define PIPE_LOGICOP_NAND             7
+   PIPE_LOGICOP_INVERT,
-#define PIPE_LOGICOP_AND              8
+   PIPE_LOGICOP_XOR,
-#define PIPE_LOGICOP_EQUIV            9
+   PIPE_LOGICOP_NAND,
-#define PIPE_LOGICOP_NOOP             10
+   PIPE_LOGICOP_AND,
-#define PIPE_LOGICOP_OR_INVERTED      11
+   PIPE_LOGICOP_EQUIV,
-#define PIPE_LOGICOP_COPY             12
+   PIPE_LOGICOP_NOOP,
-#define PIPE_LOGICOP_OR_REVERSE       13
+   PIPE_LOGICOP_OR_INVERTED,
-#define PIPE_LOGICOP_OR               14
+   PIPE_LOGICOP_COPY,
-#define PIPE_LOGICOP_SET              15  
+   PIPE_LOGICOP_OR_REVERSE,
+   PIPE_LOGICOP_OR,
+   PIPE_LOGICOP_SET,
+};
 
 #define PIPE_MASK_R  0x1
 #define PIPE_MASK_G  0x2