diff options
| author | Kenneth Graunke <kenneth@whitecape.org> | 2013-09-03 16:55:37 -0700 |
|---|---|---|
| committer | Kenneth Graunke <kenneth@whitecape.org> | 2013-09-09 11:52:22 -0700 |
| commit | 1a6c0efa116e7427e3ee5f24db2000e3edb66047 (patch) | |
| tree | 0843cf556e5072128c6b8dd862e455cff0fcbbd4 | |
| parent | 202238824bdde9ddac5753232eee4f3d1e2d67db (diff) | |
glsl: Expose IR builder support for arbitrary swizzling.
IR builder already offers a lot of swizzling functions, such as
swizzle_xxxx, swizzle_z, or swizzle_for_size.
The swizzle_xxxx style is convenient if you statically know which
components you want. swizzle_for_size is great if you want to select
the first few components. However, if you want to select components
based on, say, a loop counter, none of those are sufficient.
IR builder actually already had support for arbitrary swizzling, but
didn't expose it. This patch exposes that API.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Paul Berry <stereotype441@gmail.com>
| -rw-r--r-- | src/glsl/ir_builder.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/src/glsl/ir_builder.h b/src/glsl/ir_builder.h index 6d32d7a68b..091cf400b4 100644 --- a/src/glsl/ir_builder.h +++ b/src/glsl/ir_builder.h @@ -171,6 +171,7 @@ ir_expression *u2i(operand a); ir_expression *b2i(operand a); ir_expression *i2b(operand a); +ir_swizzle *swizzle(operand a, int swizzle, int components); /** * Swizzle away later components, but preserve the ordering. */ |