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 *
 * The above copyright notice and this permission notice (including the
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/**
 * Alpha testing to LLVM IR translation.
 *
 * @author Jose Fonseca <jfonseca@vmware.com>
 */

#include "pipe/p_state.h"

#include "lp_bld_type.h"
#include "lp_bld_const.h"
#include "lp_bld_arit.h"
#include "lp_bld_logic.h"
#include "lp_bld_flow.h"
#include "lp_bld_debug.h"
#include "lp_bld_alpha.h"


void
lp_build_alpha_test(LLVMBuilderRef builder,
                    const struct pipe_alpha_state *state,
                    union lp_type type,
                    struct lp_build_mask_context *mask,
                    LLVMValueRef alpha,
                    LLVMValueRef ref)
{
   struct lp_build_context bld;

   lp_build_context_init(&bld, builder, type);

   if(state->enabled) {
      LLVMValueRef test = lp_build_cmp(&bld, state->func, alpha, ref);

      lp_build_name(test, "alpha_mask");

      lp_build_mask_update(mask, test);
   }
}
