From: Giovanni Mascellani gmascellani@codeweavers.com
--- libs/vkd3d-shader/hlsl_constant_ops.c | 43 +++++++++++++++++++++++++++ 1 file changed, 43 insertions(+)
diff --git a/libs/vkd3d-shader/hlsl_constant_ops.c b/libs/vkd3d-shader/hlsl_constant_ops.c index c36c7c18..6d09ff10 100644 --- a/libs/vkd3d-shader/hlsl_constant_ops.c +++ b/libs/vkd3d-shader/hlsl_constant_ops.c @@ -442,6 +442,45 @@ static bool fold_nequal(struct hlsl_ctx *ctx, struct hlsl_constant_value *dst, c return true; }
+static bool fold_less(struct hlsl_ctx *ctx, struct hlsl_constant_value *dst, const struct hlsl_type *dst_type, + const struct hlsl_ir_constant *src1, const struct hlsl_ir_constant *src2) +{ + unsigned int k; + + assert(dst_type->base_type == HLSL_TYPE_BOOL); + assert(src1->node.data_type->base_type == src2->node.data_type->base_type); + + for (k = 0; k < 4; ++k) + { + switch (src1->node.data_type->base_type) + { + case HLSL_TYPE_FLOAT: + case HLSL_TYPE_HALF: + dst->u[k].u = src1->value.u[k].f < src2->value.u[k].f; + break; + + case HLSL_TYPE_DOUBLE: + dst->u[k].u = src1->value.u[k].d < src2->value.u[k].d; + break; + + case HLSL_TYPE_INT: + dst->u[k].u = src1->value.u[k].i < src2->value.u[k].i; + break; + + case HLSL_TYPE_UINT: + case HLSL_TYPE_BOOL: + dst->u[k].u = src1->value.u[k].u < src2->value.u[k].u; + break; + + default: + vkd3d_unreachable(); + } + + dst->u[k].u *= ~0u; + } + return true; +} + static bool fold_max(struct hlsl_ctx *ctx, struct hlsl_constant_value *dst, const struct hlsl_type *dst_type, const struct hlsl_ir_constant *src1, const struct hlsl_ir_constant *src2) { @@ -647,6 +686,10 @@ bool hlsl_fold_constant_exprs(struct hlsl_ctx *ctx, struct hlsl_ir_node *instr, success = fold_nequal(ctx, &res, instr->data_type, arg1, arg2); break;
+ case HLSL_OP2_LESS: + success = fold_less(ctx, &res, instr->data_type, arg1, arg2); + break; + case HLSL_OP2_MAX: success = fold_max(ctx, &res, instr->data_type, arg1, arg2); break;