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.
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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_FORMAT_H
29 #define LP_BLD_FORMAT_H
30 
31 
32 /**
33  * @file
34  * Pixel format helpers.
35  */
36 
37 #include "gallivm/lp_bld.h"
38 #include "gallivm/lp_bld_init.h"
39 
40 #include "pipe/p_format.h"
41 
42 struct util_format_description;
43 struct lp_type;
44 struct lp_build_context;
45 
46 
47 /*
48  * AoS
49  */
50 
51 LLVMValueRef
52 lp_build_format_swizzle_aos(const struct util_format_description *desc,
53                             struct lp_build_context *bld,
54                             LLVMValueRef unswizzled);
55 
56 LLVMValueRef
57 lp_build_pack_rgba_aos(struct gallivm_state *gallivm,
58                        const struct util_format_description *desc,
59                        LLVMValueRef rgba);
60 
61 LLVMValueRef
62 lp_build_fetch_rgba_aos(struct gallivm_state *gallivm,
63                         const struct util_format_description *format_desc,
64                         struct lp_type type,
65                         LLVMValueRef base_ptr,
66                         LLVMValueRef offset,
67                         LLVMValueRef i,
68                         LLVMValueRef j);
69 
70 LLVMValueRef
71 lp_build_fetch_rgba_aos_array(struct gallivm_state *gallivm,
72                         const struct util_format_description *format_desc,
73                         struct lp_type type,
74                         LLVMValueRef base_ptr,
75                         LLVMValueRef offset);
76 
77 
78 /*
79  * SoA
80  */
81 
82 void
83 lp_build_format_swizzle_soa(const struct util_format_description *format_desc,
84                             struct lp_build_context *bld,
85                             const LLVMValueRef unswizzled[4],
86                             LLVMValueRef swizzled_out[4]);
87 
88 void
89 lp_build_unpack_rgba_soa(struct gallivm_state *gallivm,
90                          const struct util_format_description *format_desc,
91                          struct lp_type type,
92                          LLVMValueRef packed,
93                          LLVMValueRef rgba_out[4]);
94 
95 void
96 lp_build_rgba8_to_f32_soa(struct gallivm_state *gallivm,
97                           struct lp_type dst_type,
98                           LLVMValueRef packed,
99                           LLVMValueRef *rgba);
100 
101 void
102 lp_build_fetch_rgba_soa(struct gallivm_state *gallivm,
103                         const struct util_format_description *format_desc,
104                         struct lp_type type,
105                         LLVMValueRef base_ptr,
106                         LLVMValueRef offsets,
107                         LLVMValueRef i,
108                         LLVMValueRef j,
109                         LLVMValueRef rgba_out[4]);
110 
111 /*
112  * YUV
113  */
114 
115 
116 LLVMValueRef
117 lp_build_fetch_subsampled_rgba_aos(struct gallivm_state *gallivm,
118                                    const struct util_format_description *format_desc,
119                                    unsigned n,
120                                    LLVMValueRef base_ptr,
121                                    LLVMValueRef offset,
122                                    LLVMValueRef i,
123                                    LLVMValueRef j);
124 
125 #endif /* !LP_BLD_FORMAT_H */
126