diff options
| author | Brian <brian@yutani.localnet.net> | 2007-01-31 16:34:54 -0700 |
|---|---|---|
| committer | Brian <brian@yutani.localnet.net> | 2007-01-31 16:34:54 -0700 |
| commit | b63c100677c76bb20a1871ea15298ca708acd04f (patch) | |
| tree | 531db5e2db8f313a6273548f766db850a37b9548 /src/mesa/shader/prog_instruction.h | |
| parent | 309d5b665051179b7e135d7329da1ea45bfeb8e5 (diff) | |
Overhaul handling of writemasks/swizzling. This fixes two problem cases:
vec2 v; v.x = v.y = 1.0; // chained assignment
vec4 v; v.zx = vec2(a,b); // swizzled writemask
Diffstat (limited to 'src/mesa/shader/prog_instruction.h')
| -rw-r--r-- | src/mesa/shader/prog_instruction.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/src/mesa/shader/prog_instruction.h b/src/mesa/shader/prog_instruction.h index 3e88b4e627..f018de82b3 100644 --- a/src/mesa/shader/prog_instruction.h +++ b/src/mesa/shader/prog_instruction.h @@ -49,6 +49,7 @@ #define SWIZZLE_W 3 #define SWIZZLE_ZERO 4 /**< For SWZ instruction only */ #define SWIZZLE_ONE 5 /**< For SWZ instruction only */ +#define SWIZZLE_NIL 7 /**< used during shader code gen (undefined value) */ /*@}*/ #define MAKE_SWIZZLE4(a,b,c,d) (((a)<<0) | ((b)<<3) | ((c)<<6) | ((d)<<9)) |