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
38struct pipe_blend_state;
39struct lp_type;
40struct lp_build_context;
41
42
43LLVMValueRef
44lp_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
56LLVMValueRef
57lp_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
69void
70lp_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 */
86LLVMValueRef
87lp_build_logicop(LLVMBuilderRef builder,
88                 unsigned logicop_func,
89                 LLVMValueRef src,
90                 LLVMValueRef dst);
91
92
93LLVMValueRef
94lp_build_blend_func(struct lp_build_context *bld,
95                    unsigned func,
96                    LLVMValueRef term1,
97                    LLVMValueRef term2);
98
99
100boolean
101lp_build_blend_func_reverse(unsigned rgb_func,
102                            unsigned alpha_func);
103
104
105boolean
106lp_build_blend_func_commutative(unsigned func);
107
108
109#endif /* !LP_BLD_BLEND_H */
110