diff options
| author | José Fonseca <jfonseca@vmware.com> | 2009-09-07 14:27:06 +0100 |
|---|---|---|
| committer | José Fonseca <jfonseca@vmware.com> | 2009-09-07 15:02:07 +0100 |
| commit | fa0f4b35be17f68667edd6a2757b89086a11a833 (patch) | |
| tree | 027e7608fc79baa80f3fded15e68119c539e8e04 /src/gallium/drivers/llvmpipe/lp_bld_arit.h | |
| parent | 4da20234f3ea9b1606522fd0a9f4ef5c4b903906 (diff) | |
llvmpipe: Utility functions for linear and bilinear interpolation.
Diffstat (limited to 'src/gallium/drivers/llvmpipe/lp_bld_arit.h')
| -rw-r--r-- | src/gallium/drivers/llvmpipe/lp_bld_arit.h | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/src/gallium/drivers/llvmpipe/lp_bld_arit.h b/src/gallium/drivers/llvmpipe/lp_bld_arit.h index 0732b9fa75..383c3c3313 100644 --- a/src/gallium/drivers/llvmpipe/lp_bld_arit.h +++ b/src/gallium/drivers/llvmpipe/lp_bld_arit.h @@ -72,6 +72,26 @@ lp_build_div(struct lp_build_context *bld, LLVMValueRef b); LLVMValueRef +lp_build_lerp(struct lp_build_context *bld, + LLVMValueRef x, + LLVMValueRef v0, + LLVMValueRef v1); + +/** + * Bilinear interpolation. + * + * Values indices are in v_{yx}. + */ +LLVMValueRef +lp_build_lerp_2d(struct lp_build_context *bld, + LLVMValueRef x, + LLVMValueRef y, + LLVMValueRef v00, + LLVMValueRef v01, + LLVMValueRef v10, + LLVMValueRef v11); + +LLVMValueRef lp_build_min(struct lp_build_context *bld, LLVMValueRef a, LLVMValueRef b); |