diff options
Diffstat (limited to 'src/gallium/auxiliary/gallivm/lp_bld_quad.c')
| -rw-r--r-- | src/gallium/auxiliary/gallivm/lp_bld_quad.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/src/gallium/auxiliary/gallivm/lp_bld_quad.c b/src/gallium/auxiliary/gallivm/lp_bld_quad.c index 8a0efed..1955add 100644 --- a/src/gallium/auxiliary/gallivm/lp_bld_quad.c +++ b/src/gallium/auxiliary/gallivm/lp_bld_quad.c @@ -79,14 +79,9 @@ lp_build_ddy(struct lp_build_context *bld, } /* - * To be able to handle multiple quads at once in texture sampling and - * do lod calculations per quad, it is necessary to get the per-quad - * derivatives into the lp_build_rho function. - * For 8-wide vectors the packed derivative values for 3 coords would - * look like this, this scales to a arbitrary (multiple of 4) vector size: - * ds1dx ds1dy dt1dx dt1dy ds2dx ds2dy dt2dx dt2dy + * Helper for building packed ddx/ddy vector for one coord (scalar per quad + * values). The vector will look like this (8-wide): * dr1dx dr1dy _____ _____ dr2dx dr2dy _____ _____ - * The second vector will be unused for 1d and 2d textures. */ LLVMValueRef lp_build_packed_ddx_ddy_onecoord(struct lp_build_context *bld, @@ -121,6 +116,11 @@ lp_build_packed_ddx_ddy_onecoord(struct lp_build_context *bld, } +/* + * Helper for building packed ddx/ddy vector for one coord (scalar per quad + * values). The vector will look like this (8-wide): + * ds1dx ds1dy dt1dx dt1dy ds2dx ds2dy dt2dx dt2dy + */ LLVMValueRef lp_build_packed_ddx_ddy_twocoord(struct lp_build_context *bld, LLVMValueRef a, LLVMValueRef b) |