glsl: Refactor AST-to-HIR code handling variable initializers

[mesa.git] / src / glsl / SConscript

diff --git a/src/glsl/SConscript b/src/glsl/SConscript
index f55d7de744f72831ea6d7e591b462c5ec0555755..9ecc155c9c960ec18b44707c00f5c53aef47300a 100644 (file)
--- a/src/glsl/SConscript
+++ b/src/glsl/SConscript
@@ -11,18 +11,35 @@ env.Prepend(CPPPATH = [
     '#src/mapi',
     '#src/mesa',
     '#src/glsl',
+    '#src/glsl/glcpp',
 ])
 
-sources = [
-    'glcpp/glcpp-lex.c',
-    'glcpp/glcpp-parse.c',
+# Make glcpp/glcpp-parse.h and glsl_parser.h reacheable from the include path
+env.Append(CPPPATH = [Dir('.').abspath])
+
+env.Append(YACCFLAGS = '-d')
+
+parser_env = env.Clone()
+parser_env.Append(YACCFLAGS = [
+    '--defines=%s' % File('glsl_parser.h').abspath,
+    '-p', '_mesa_glsl_',
+])
+
+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')
+
+glsl_sources = [
+    glcpp_lexer,
+    glcpp_parser[0],
     'glcpp/pp.c',
     'ast_expr.cpp',
     'ast_function.cpp',
     'ast_to_hir.cpp',
     'ast_type.cpp',
-    'glsl_lexer.cpp',
-    'glsl_parser.cpp',
+    glsl_lexer,
+    glsl_parser[0],
     'glsl_parser_extras.cpp',
     'glsl_types.cpp',
     'glsl_symbol_table.cpp',
@@ -81,19 +98,29 @@ sources = [
     'strtod.c',
 ] 
 
+if env['msvc']:
+    env.Prepend(CPPPATH = ['#/src/getopt'])
+    env.PrependUnique(LIBS = [getopt])
 
-if env['platform'] == common.host_platform:
-    if env['msvc']:
-        env.Prepend(CPPPATH = ['#/src/getopt'])
-        env.PrependUnique(LIBS = [getopt])
+if env['crosscompile'] and env['platform'] != 'embedded':
+    Import('builtin_glsl_function')
+else:
+    main_obj = env.StaticObject('main.cpp')
+
+    mesa_objs = env.StaticObject([
+        '#src/mesa/program/hash_table.c',
+        '#src/mesa/program/symbol_table.c',
+    ])
 
     builtin_compiler = env.Program(
         target = 'builtin_compiler',
-        source = sources + ['main.cpp', 'builtin_stubs.cpp',
-                            '#src/mesa/program/hash_table.c',
-                            '#src/mesa/program/symbol_table.c'],
+        source = main_obj + glsl_sources + ['builtin_stubs.cpp'] + mesa_objs,
     )
 
+    # 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',
@@ -105,20 +132,27 @@ if env['platform'] == common.host_platform:
 
     Export('builtin_glsl_function')
 
-    if common.cross_compiling:
+    if env['hostonly']:
         Return()
 
-sources += builtin_glsl_function
+
+glsl_sources += builtin_glsl_function
 
 glsl = env.ConvenienceLibrary(
     target = 'glsl',
-    source = sources,
+    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')
 
-# FIXME: We can't build the programs because there's a cyclic dependency between tis directory and src/mesa
-Return()
+# 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['platform'] == 'embedded':
+    Return()
 
 env = env.Clone()
 
@@ -129,14 +163,14 @@ if env['platform'] == 'windows':
 
 env.Prepend(LIBS = [glsl])
 
-env.Program(
+glsl2 = env.Program(
     target = 'glsl2',
-    source = [
-        'main.cpp',
-    ]
+    source = main_obj + mesa_objs,
 )
+env.Alias('glsl2', glsl2)
 
-env.Program(
-    target = 'glcpp',
-    source = ['glcpp/glcpp.c'],
+glcpp = env.Program(
+    target = 'glcpp/glcpp',
+    source = ['glcpp/glcpp.c'] + mesa_objs,
 )
+env.Alias('glcpp', glcpp)