summaryrefslogtreecommitdiffstats
path: root/src/glsl/SConscript
blob: 0855c67bb4eb81b104187b1564b3d58d380eda52 (plain)
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
import common

Import('*')

from sys import executable as python_cmd

env = env.Clone()

env.Prepend(CPPPATH = [
    '#include',
    '#src/mapi',
    '#src/mesa',
    '#src/glsl',
    '#src/glsl/glcpp',
])

# Make glcpp-parse.h and glsl_parser.h reachable from the include path.
env.Append(CPPPATH = [Dir('.').abspath, Dir('glcpp').abspath])

env.Append(YACCFLAGS = '-d')

parser_env = env.Clone()
parser_env.Append(YACCFLAGS = [
    '--defines=%s' % File('glsl_parser.h').abspath,
    '-p', '_mesa_glsl_',
])

# without this line scons will expect "glsl_parser.hpp" instead of
# "glsl_parser.h", causing glsl_parser.cpp to be regenerated every time
parser_env['YACCHXXFILESUFFIX'] = '.h'

glcpp_lexer = env.CFile('glcpp/glcpp-lex.c', 'glcpp/glcpp-lex.l')
glcpp_parser = env.CFile('glcpp/glcpp-parse.c', 'glcpp/glcpp-parse.y')
glsl_lexer = parser_env.CXXFile('glsl_lexer.cpp', 'glsl_lexer.ll')
glsl_parser = parser_env.CXXFile('glsl_parser.cpp', 'glsl_parser.yy')

# common generated sources
glsl_sources = [
    glcpp_lexer,
    glcpp_parser[0],
    glsl_lexer,
    glsl_parser[0],
] 

# parse Makefile.sources
source_lists = env.ParseSourceList('Makefile.sources')

# add non-generated sources
for l in ('LIBGLCPP_FILES', 'LIBGLSL_FILES', 'LIBGLSL_CXX_FILES'):
    glsl_sources += source_lists[l]

if env['msvc']:
    env.Prepend(CPPPATH = ['#/src/getopt'])
    env.PrependUnique(LIBS = [getopt])

if env['crosscompile'] and not env['embedded']:
    Import('builtin_glsl_function')
else:
    # Copy these files to avoid generation object files into src/mesa/program
    env.Prepend(CPPPATH = ['#src/mesa/program'])
    env.Command('hash_table.c', '#src/mesa/program/hash_table.c', Copy('$TARGET', '$SOURCE'))
    env.Command('symbol_table.c', '#src/mesa/program/symbol_table.c', Copy('$TARGET', '$SOURCE'))

    compiler_objs = env.StaticObject(source_lists['GLSL_COMPILER_CXX_FILES'])

    mesa_objs = env.StaticObject([
        'hash_table.c',
        'symbol_table.c',
    ])

    compiler_objs += mesa_objs

    builtin_compiler = env.Program(
        target = 'builtin_compiler',
        source = compiler_objs + glsl_sources + \
            source_lists['BUILTIN_COMPILER_CXX_FILES'],
    )

    # SCons builtin dependency scanner doesn't detect that glsl_lexer.ll
    # depends on glsl_parser.h
    env.Depends(builtin_compiler, glsl_parser)

    builtin_glsl_function = env.CodeGenerate(
        target = 'builtin_function.cpp',
        script = 'builtins/tools/generate_builtins.py',
        source = builtin_compiler,
        command = python_cmd + ' $SCRIPT $SOURCE > $TARGET'
    )

    env.Depends(builtin_glsl_function, ['builtins/tools/generate_builtins.py', 'builtins/tools/texture_builtins.py'] + Glob('builtins/ir/*'))

    Export('builtin_glsl_function')

    if env['hostonly']:
        Return()


glsl_sources += builtin_glsl_function

glsl = env.ConvenienceLibrary(
    target = 'glsl',
    source = glsl_sources,
)

# SCons builtin dependency scanner doesn't detect that glsl_lexer.ll depends on
# glsl_parser.h
env.Depends(glsl, glsl_parser)

Export('glsl')

# Skip building these programs as they will cause SCons error "Two environments
# with different actions were specified for the same target"
if env['crosscompile'] or env['embedded']:
    Return()

env = env.Clone()

if env['platform'] == 'windows':
    env.PrependUnique(LIBS = [
        'user32',
    ])

env.Prepend(LIBS = [glsl])

glsl2 = env.Program(
    target = 'glsl2',
    source = compiler_objs,
)
env.Alias('glsl2', glsl2)

glcpp = env.Program(
    target = 'glcpp/glcpp',
    source = ['glcpp/glcpp.c'] + mesa_objs,
)
env.Alias('glcpp', glcpp)