diff options
Diffstat (limited to 'src/gallium/drivers/radeonsi/si_shader.c')
| -rw-r--r-- | src/gallium/drivers/radeonsi/si_shader.c | 19 |
1 files changed, 15 insertions, 4 deletions
diff --git a/src/gallium/drivers/radeonsi/si_shader.c b/src/gallium/drivers/radeonsi/si_shader.c index 11c7c38e5d4..166b2e8a415 100644 --- a/src/gallium/drivers/radeonsi/si_shader.c +++ b/src/gallium/drivers/radeonsi/si_shader.c @@ -2532,7 +2532,7 @@ static void si_write_tess_factors(struct lp_build_tgsi_context *bld_base, LLVMValueRef lds_base, lds_inner, lds_outer, byteoffset, buffer; LLVMValueRef out[6], vec0, vec1, rw_buffers, tf_base; unsigned stride, outer_comps, inner_comps, i; - struct lp_build_if_state if_ctx; + struct lp_build_if_state if_ctx, inner_if_ctx; /* Do this only for invocation 0, because the tess levels are per-patch, * not per-vertex. @@ -2604,12 +2604,23 @@ static void si_write_tess_factors(struct lp_build_tgsi_context *bld_base, byteoffset = LLVMBuildMul(gallivm->builder, rel_patch_id, lp_build_const_int32(gallivm, 4 * stride), ""); - /* Store the outputs. */ + lp_build_if(&inner_if_ctx, gallivm, + LLVMBuildICmp(gallivm->builder, LLVMIntEQ, + rel_patch_id, bld_base->uint_bld.zero, "")); + + /* Store the dynamic HS control word. */ + build_tbuffer_store_dwords(ctx, buffer, + lp_build_const_int32(gallivm, 0x80000000), + 1, lp_build_const_int32(gallivm, 0), tf_base, 0); + + lp_build_endif(&inner_if_ctx); + + /* Store the tessellation factors. */ build_tbuffer_store_dwords(ctx, buffer, vec0, - MIN2(stride, 4), byteoffset, tf_base, 0); + MIN2(stride, 4), byteoffset, tf_base, 4); if (vec1) build_tbuffer_store_dwords(ctx, buffer, vec1, - stride - 4, byteoffset, tf_base, 16); + stride - 4, byteoffset, tf_base, 20); lp_build_endif(&if_ctx); } |