diff options
| -rw-r--r-- | src/gallium/drivers/llvmpipe/lp_bld_swizzle.c | 18 | ||||
| -rw-r--r-- | src/gallium/drivers/llvmpipe/lp_bld_swizzle.h | 5 |
2 files changed, 23 insertions, 0 deletions
diff --git a/src/gallium/drivers/llvmpipe/lp_bld_swizzle.c b/src/gallium/drivers/llvmpipe/lp_bld_swizzle.c index 1f83bf6782..3182573db2 100644 --- a/src/gallium/drivers/llvmpipe/lp_bld_swizzle.c +++ b/src/gallium/drivers/llvmpipe/lp_bld_swizzle.c @@ -34,6 +34,24 @@ LLVMValueRef +lp_build_broadcast_scalar(struct lp_build_context *bld, + LLVMValueRef scalar) +{ + const union lp_type type = bld->type; + LLVMValueRef res; + unsigned i; + + res = bld->undef; + for(i = 0; i < type.length; ++i) { + LLVMValueRef index = LLVMConstInt(LLVMInt32Type(), i, 0); + res = LLVMBuildInsertElement(bld->builder, res, scalar, index, ""); + } + + return res; +} + + +LLVMValueRef lp_build_broadcast_aos(struct lp_build_context *bld, LLVMValueRef a, unsigned channel) diff --git a/src/gallium/drivers/llvmpipe/lp_bld_swizzle.h b/src/gallium/drivers/llvmpipe/lp_bld_swizzle.h index aeb4f42fa8..dede675e58 100644 --- a/src/gallium/drivers/llvmpipe/lp_bld_swizzle.h +++ b/src/gallium/drivers/llvmpipe/lp_bld_swizzle.h @@ -44,6 +44,11 @@ union lp_type type; struct lp_build_context; +LLVMValueRef +lp_build_broadcast_scalar(struct lp_build_context *bld, + LLVMValueRef scalar); + + /** * Broadcast one channel of a vector composed of arrays of XYZW structures into * all four channel. |