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      1 /**************************************************************************
      2  *
      3  * Copyright 2009 VMware, Inc.
      4  * All Rights Reserved.
      5  *
      6  * Permission is hereby granted, free of charge, to any person obtaining a
      7  * copy of this software and associated documentation files (the
      8  * "Software"), to deal in the Software without restriction, including
      9  * without limitation the rights to use, copy, modify, merge, publish,
     10  * distribute, sub license, and/or sell copies of the Software, and to
     11  * permit persons to whom the Software is furnished to do so, subject to
     12  * the following conditions:
     13  *
     14  * The above copyright notice and this permission notice (including the
     15  * next paragraph) shall be included in all copies or substantial portions
     16  * of the Software.
     17  *
     18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
     19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
     20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
     21  * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
     22  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
     23  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
     24  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
     25  *
     26  **************************************************************************/
     27 
     28 #ifndef LP_BLD_BLEND_H
     29 #define LP_BLD_BLEND_H
     30 
     31 
     32 #include "gallivm/lp_bld.h"
     33 #include "gallivm/lp_bld_init.h"
     34 
     35 #include "pipe/p_format.h"
     36 
     37 
     38 struct pipe_blend_state;
     39 struct lp_type;
     40 struct lp_build_context;
     41 
     42 
     43 LLVMValueRef
     44 lp_build_blend(struct lp_build_context *bld,
     45                unsigned func,
     46                unsigned factor_src,
     47                unsigned factor_dst,
     48                LLVMValueRef src,
     49                LLVMValueRef dst,
     50                LLVMValueRef src_factor,
     51                LLVMValueRef dst_factor,
     52                boolean not_alpha_dependent,
     53                boolean optimise_only);
     54 
     55 
     56 LLVMValueRef
     57 lp_build_blend_aos(struct gallivm_state *gallivm,
     58                    const struct pipe_blend_state *blend,
     59                    const enum pipe_format *cbuf_format,
     60                    struct lp_type type,
     61                    unsigned rt,
     62                    LLVMValueRef src,
     63                    LLVMValueRef dst,
     64                    LLVMValueRef mask,
     65                    LLVMValueRef const_,
     66                    const unsigned char swizzle[4]);
     67 
     68 
     69 void
     70 lp_build_blend_soa(struct gallivm_state *gallivm,
     71                    const struct pipe_blend_state *blend,
     72                    struct lp_type type,
     73                    unsigned rt,
     74                    LLVMValueRef src[4],
     75                    LLVMValueRef dst[4],
     76                    LLVMValueRef const_[4],
     77                    LLVMValueRef res[4]);
     78 
     79 
     80 /**
     81  * Apply a logic op.
     82  *
     83  * src/dst parameters are packed values. It should work regardless the inputs
     84  * are scalars, or a vector.
     85  */
     86 LLVMValueRef
     87 lp_build_logicop(LLVMBuilderRef builder,
     88                  unsigned logicop_func,
     89                  LLVMValueRef src,
     90                  LLVMValueRef dst);
     91 
     92 
     93 LLVMValueRef
     94 lp_build_blend_func(struct lp_build_context *bld,
     95                     unsigned func,
     96                     LLVMValueRef term1,
     97                     LLVMValueRef term2);
     98 
     99 
    100 boolean
    101 lp_build_blend_func_reverse(unsigned rgb_func,
    102                             unsigned alpha_func);
    103 
    104 
    105 boolean
    106 lp_build_blend_func_commutative(unsigned func);
    107 
    108 
    109 #endif /* !LP_BLD_BLEND_H */
    110