1import common
2
3Import('*')
4
5from sys import executable as python_cmd
6
7env = env.Clone()
8
9env.Prepend(CPPPATH = [
10    '#include',
11    '#src/mapi',
12    '#src/mesa',
13    '#src/glsl',
14    '#src/glsl/glcpp',
15])
16
17# Make glcpp-parse.h and glsl_parser.h reachable from the include path.
18env.Append(CPPPATH = [Dir('.').abspath, Dir('glcpp').abspath])
19
20env.Append(YACCFLAGS = '-d -p "glcpp_parser_"')
21
22parser_env = env.Clone()
23parser_env.Append(YACCFLAGS = [
24    '--defines=%s' % File('glsl_parser.h').abspath,
25    '-p', '_mesa_glsl_',
26])
27
28# without this line scons will expect "glsl_parser.hpp" instead of
29# "glsl_parser.h", causing glsl_parser.cpp to be regenerated every time
30parser_env['YACCHXXFILESUFFIX'] = '.h'
31
32glcpp_lexer = env.CFile('glcpp/glcpp-lex.c', 'glcpp/glcpp-lex.l')
33glcpp_parser = env.CFile('glcpp/glcpp-parse.c', 'glcpp/glcpp-parse.y')
34glsl_lexer = parser_env.CXXFile('glsl_lexer.cpp', 'glsl_lexer.ll')
35glsl_parser = parser_env.CXXFile('glsl_parser.cpp', 'glsl_parser.yy')
36
37# common generated sources
38glsl_sources = [
39    glcpp_lexer,
40    glcpp_parser[0],
41    glsl_lexer,
42    glsl_parser[0],
43] 
44
45# parse Makefile.sources
46source_lists = env.ParseSourceList('Makefile.sources')
47
48# add non-generated sources
49for l in ('LIBGLCPP_FILES', 'LIBGLSL_FILES', 'LIBGLSL_CXX_FILES'):
50    glsl_sources += source_lists[l]
51
52if env['msvc']:
53    env.Prepend(CPPPATH = ['#/src/getopt'])
54    env.PrependUnique(LIBS = [getopt])
55
56if env['crosscompile'] and not env['embedded']:
57    Import('builtin_glsl_function')
58else:
59    # Copy these files to avoid generation object files into src/mesa/program
60    env.Prepend(CPPPATH = ['#src/mesa/program'])
61    env.Command('hash_table.c', '#src/mesa/program/hash_table.c', Copy('$TARGET', '$SOURCE'))
62    env.Command('symbol_table.c', '#src/mesa/program/symbol_table.c', Copy('$TARGET', '$SOURCE'))
63
64    compiler_objs = env.StaticObject(source_lists['GLSL_COMPILER_CXX_FILES'])
65
66    mesa_objs = env.StaticObject([
67        'hash_table.c',
68        'symbol_table.c',
69    ])
70
71    compiler_objs += mesa_objs
72
73    builtin_compiler = env.Program(
74        target = 'builtin_compiler',
75        source = compiler_objs + glsl_sources + \
76            source_lists['BUILTIN_COMPILER_CXX_FILES'],
77    )
78
79    # SCons builtin dependency scanner doesn't detect that glsl_lexer.ll
80    # depends on glsl_parser.h
81    env.Depends(builtin_compiler, glsl_parser)
82
83    builtin_glsl_function = env.CodeGenerate(
84        target = 'builtin_function.cpp',
85        script = 'builtins/tools/generate_builtins.py',
86        source = builtin_compiler,
87        command = python_cmd + ' $SCRIPT $SOURCE > $TARGET'
88    )
89
90    env.Depends(builtin_glsl_function, ['builtins/tools/generate_builtins.py', 'builtins/tools/texture_builtins.py'] + Glob('builtins/ir/*'))
91
92    Export('builtin_glsl_function')
93
94    if env['hostonly']:
95        Return()
96
97
98glsl_sources += builtin_glsl_function
99
100glsl = env.ConvenienceLibrary(
101    target = 'glsl',
102    source = glsl_sources,
103)
104
105# SCons builtin dependency scanner doesn't detect that glsl_lexer.ll depends on
106# glsl_parser.h
107env.Depends(glsl, glsl_parser)
108
109Export('glsl')
110
111# Skip building these programs as they will cause SCons error "Two environments
112# with different actions were specified for the same target"
113if env['crosscompile'] or env['embedded']:
114    Return()
115
116env = env.Clone()
117
118if env['platform'] == 'windows':
119    env.PrependUnique(LIBS = [
120        'user32',
121    ])
122
123env.Prepend(LIBS = [glsl])
124
125glsl2 = env.Program(
126    target = 'glsl2',
127    source = compiler_objs,
128)
129env.Alias('glsl2', glsl2)
130
131glcpp = env.Program(
132    target = 'glcpp/glcpp',
133    source = ['glcpp/glcpp.c'] + mesa_objs,
134)
135env.Alias('glcpp', glcpp)
136