diff options
| author | Francisco Jerez <[email protected]> | 2014-02-19 15:20:27 +0100 |
|---|---|---|
| committer | Ian Romanick <[email protected]> | 2014-02-26 17:58:20 -0800 |
| commit | 3efb934deee37bc6203577f686c55d658ea4c7c3 (patch) | |
| tree | f6325e1d00dc06c635f1706060bf87abb2b5b33b /src | |
| parent | 29876a4d28cd595da900a89b38057348bea24c4d (diff) | |
i965/vec4: Add non-mutating helper functions to modify src_reg::swizzle and ::negate.
Reviewed-by: Paul Berry <[email protected]>
(cherry picked from commit 98306e727b8291507ff4fd5dd5c4806f3fed9202)
Diffstat (limited to 'src')
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_vec4.h | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_vec4.h b/src/mesa/drivers/dri/i965/brw_vec4.h index e17b5cd3f37..2a1d99215ae 100644 --- a/src/mesa/drivers/dri/i965/brw_vec4.h +++ b/src/mesa/drivers/dri/i965/brw_vec4.h @@ -142,6 +142,30 @@ public: src_reg *reladdr; }; +/** + * Reswizzle a given source register. + * \sa brw_swizzle(). + */ +static inline src_reg +swizzle(src_reg reg, unsigned swizzle) +{ + assert(reg.file != HW_REG); + reg.swizzle = BRW_SWIZZLE4( + BRW_GET_SWZ(reg.swizzle, BRW_GET_SWZ(swizzle, 0)), + BRW_GET_SWZ(reg.swizzle, BRW_GET_SWZ(swizzle, 1)), + BRW_GET_SWZ(reg.swizzle, BRW_GET_SWZ(swizzle, 2)), + BRW_GET_SWZ(reg.swizzle, BRW_GET_SWZ(swizzle, 3))); + return reg; +} + +static inline src_reg +negate(src_reg reg) +{ + assert(reg.file != HW_REG && reg.file != IMM); + reg.negate = !reg.negate; + return reg; +} + class dst_reg : public reg { public: |