glsl: move the scons build script a level up

It will allow us to remove the duplicate glsl/Makefile.sources.

Signed-off-by: Emil Velikov <[email protected]>
Acked-by: Jason Ekstrand <[email protected]>

1 files changed, 122 insertions, 0 deletions

diff --git a/src/compiler/SConscript.glsl b/src/compiler/SConscript.glsl
new file mode 100644
index 00000000000..43a11d105d4
--- /dev/null
+++ b/src/compiler/SConscript.glsl
@@ -0,0 +1,122 @@
+import common
+
+Import('*')
+
+from sys import executable as python_cmd
+
+env = env.Clone()
+
+env.MSVC2013Compat()
+
+env.Prepend(CPPPATH = [
+    '#include',
+    '#src',
+    '#src/mapi',
+    '#src/mesa',
+    '#src/gallium/include',
+    '#src/gallium/auxiliary',
+    '#src/compiler/glsl',
+    '#src/compiler/glsl/glcpp',
+])
+
+env.Prepend(LIBS = [mesautil])
+
+# Make glcpp-parse.h and glsl_parser.h reachable from the include path.
+env.Prepend(CPPPATH = [Dir('.').abspath, Dir('glsl').abspath])
+
+glcpp_env = env.Clone()
+glcpp_env.Append(YACCFLAGS = [
+    '-d',
+    '-p', 'glcpp_parser_'
+])
+
+glsl_env = env.Clone()
+glsl_env.Append(YACCFLAGS = [
+    '--defines=%s' % File('glsl/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
+glsl_env['YACCHXXFILESUFFIX'] = '.h'
+
+glcpp_lexer = glcpp_env.CFile('glsl/glcpp/glcpp-lex.c', 'glsl/glcpp/glcpp-lex.l')
+glcpp_parser = glcpp_env.CFile('glsl/glcpp/glcpp-parse.c', 'glsl/glcpp/glcpp-parse.y')
+glsl_lexer = glsl_env.CXXFile('glsl/glsl_lexer.cpp', 'glsl/glsl_lexer.ll')
+glsl_parser = glsl_env.CXXFile('glsl/glsl_parser.cpp', 'glsl/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'):
+    glsl_sources += source_lists[l]
+
+if env['msvc']:
+    env.Prepend(CPPPATH = ['#/src/getopt'])
+    env.PrependUnique(LIBS = [getopt])
+
+# Copy these files to avoid generation object files into src/mesa/program
+env.Prepend(CPPPATH = ['#src/mesa/main'])
+env.Command('glsl/imports.c', '#src/mesa/main/imports.c', Copy('$TARGET', '$SOURCE'))
+# Copy these files to avoid generation object files into src/mesa/program
+env.Prepend(CPPPATH = ['#src/mesa/program'])
+env.Command('glsl/prog_hash_table.c', '#src/mesa/program/prog_hash_table.c', Copy('$TARGET', '$SOURCE'))
+env.Command('glsl/symbol_table.c', '#src/mesa/program/symbol_table.c', Copy('$TARGET', '$SOURCE'))
+env.Command('glsl/dummy_errors.c', '#src/mesa/program/dummy_errors.c', Copy('$TARGET', '$SOURCE'))
+
+compiler_objs = env.StaticObject(source_lists['GLSL_COMPILER_CXX_FILES'])
+
+mesa_objs = env.StaticObject([
+    'glsl/imports.c',
+    'glsl/prog_hash_table.c',
+    'glsl/symbol_table.c',
+    'glsl/dummy_errors.c',
+])
+
+compiler_objs += mesa_objs
+
+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 = [compiler, glsl])
+
+glsl_compiler = env.Program(
+    target = 'glsl_compiler',
+    source = compiler_objs,
+)
+env.Alias('glsl_compiler', glsl_compiler)
+
+glcpp = env.Program(
+    target = 'glsl/glcpp/glcpp',
+    source = ['glsl/glcpp/glcpp.c'] + mesa_objs,
+)
+env.Alias('glcpp', glcpp)