1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
|
/**************************************************************************
*
* Copyright 2009 VMware, Inc.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sub license, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
* IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
**************************************************************************/
#ifndef LP_BLD_H
#define LP_BLD_H
/**
* @file
* LLVM IR building helpers interfaces.
*
* We use LLVM-C bindings for now. They are not documented, but follow the C++
* interfaces very closely, and appear to be complete enough for code
* genration. See
* http://npcontemplation.blogspot.com/2008/06/secret-of-llvm-c-bindings.html
* for a standalone example.
*/
#include <llvm-c/Core.h>
#include "pipe/p_format.h"
struct pipe_blend_state;
/**
* Unpack a pixel into its RGBA components.
*
* @param packed integer.
*
* @return RGBA in a 4 floats vector.
*/
LLVMValueRef
lp_build_unpack_rgba(LLVMBuilderRef builder,
enum pipe_format format,
LLVMValueRef packed);
/**
* Pack a pixel.
*
* @param rgba 4 float vector with the unpacked components.
*/
LLVMValueRef
lp_build_pack_rgba(LLVMBuilderRef builder,
enum pipe_format format,
LLVMValueRef rgba);
/**
* Load a pixel into its RGBA components.
*
* @param ptr value with the pointer to the packed pixel. Pointer type is
* irrelevant.
*
* @return RGBA in a 4 floats vector.
*/
LLVMValueRef
lp_build_load_rgba(LLVMBuilderRef builder,
enum pipe_format format,
LLVMValueRef ptr);
/**
* Store a pixel.
*
* @param rgba 4 float vector with the unpacked components.
*/
void
lp_build_store_rgba(LLVMBuilderRef builder,
enum pipe_format format,
LLVMValueRef ptr,
LLVMValueRef rgba);
struct lp_build_loop_state
{
LLVMBasicBlockRef block;
LLVMValueRef counter;
};
void
lp_build_loop_begin(LLVMBuilderRef builder,
LLVMValueRef start,
struct lp_build_loop_state *state);
void
lp_build_loop_end(LLVMBuilderRef builder,
LLVMValueRef end,
LLVMValueRef step,
struct lp_build_loop_state *state);
/**
* Apply a logic op.
*
* src/dst parameters are packed values. It should work regardless the inputs
* are scalars, or a vector.
*/
LLVMValueRef
lp_build_logicop(LLVMBuilderRef builder,
unsigned logicop_func,
LLVMValueRef src,
LLVMValueRef dst);
LLVMValueRef
lp_build_blend(LLVMBuilderRef builder,
const struct pipe_blend_state *blend,
LLVMValueRef src,
LLVMValueRef dst,
LLVMValueRef const_,
unsigned alpha_swizzle);
#endif /* !LP_BLD_H */
|
