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
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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