-#!/usr/bin/env python
# Copyright (C) 2009 Chia-I Wu <olv@0xlab.org>
# All Rights Reserved.
# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
# IN THE SOFTWARE.
-import gl_XML
-import license
-import sys, getopt, string
+from __future__ import print_function
-def get_function_spec(func):
- sig = ""
- # derive parameter signature
- for p in func.parameterIterator():
- if p.is_padding:
- continue
- # FIXME: This is a *really* ugly hack. :(
- tn = p.type_expr.get_base_type_node()
- if p.is_pointer():
- sig += 'p'
- elif tn.integer:
- sig += 'i'
- elif tn.size == 4:
- sig += 'f'
- else:
- sig += 'd'
-
- spec = [sig]
- for ent in func.entry_points:
- spec.append("gl" + ent)
-
- # spec is terminated by an empty string
- spec.append('')
-
- return spec
+import argparse
-class PrintGlRemap(gl_XML.gl_print_base):
- def __init__(self):
- gl_XML.gl_print_base.__init__(self)
-
- self.name = "remap_helper.py (from Mesa)"
- self.license = license.bsd_license_template % ("Copyright (C) 2009 Chia-I Wu <olv@0xlab.org>", "Chia-I Wu")
- return
-
-
- def printRealHeader(self):
- print '#include "main/dispatch.h"'
- print '#include "main/remap.h"'
- print ''
- return
-
-
- def printBody(self, api):
- pool_indices = {}
-
- print '/* this is internal to remap.c */'
- print '#ifdef need_MESA_remap_table'
- print ''
- print 'static const char _mesa_function_pool[] ='
-
- # output string pool
- index = 0;
- for f in api.functionIterateAll():
- pool_indices[f] = index
-
- spec = get_function_spec(f)
-
- # a function has either assigned offset, fixed offset,
- # or no offset
- if f.assign_offset:
- comments = "will be remapped"
- elif f.offset > 0:
- comments = "offset %d" % f.offset
- else:
- comments = "dynamic"
-
- print ' /* _mesa_function_pool[%d]: %s (%s) */' \
- % (index, f.name, comments)
- for line in spec:
- print ' "%s\\0"' % line
- index += len(line) + 1
- print ' ;'
- print ''
-
- print '/* these functions need to be remapped */'
- print 'static const struct gl_function_pool_remap MESA_remap_table_functions[] = {'
- # output all functions that need to be remapped
- # iterate by offsets so that they are sorted by remap indices
- for f in api.functionIterateByOffset():
- if not f.assign_offset:
- continue
- print ' { %5d, %s_remap_index },' \
- % (pool_indices[f], f.name)
- print ' { -1, -1 }'
- print '};'
- print ''
-
- # collect functions by versions/extensions
- extension_functions = {}
- abi_extensions = []
- for f in api.functionIterateAll():
- for n in f.entry_points:
- category, num = api.get_category_for_name(n)
- # consider only GL_VERSION_X_Y or extensions
- c = gl_XML.real_category_name(category)
- if c.startswith("GL_"):
- if not extension_functions.has_key(c):
- extension_functions[c] = []
- extension_functions[c].append(f)
- # remember the ext names of the ABI
- if (f.is_abi() and n == f.name and
- c not in abi_extensions):
- abi_extensions.append(c)
- # ignore the ABI itself
- for ext in abi_extensions:
- extension_functions.pop(ext)
-
- extensions = extension_functions.keys()
- extensions.sort()
-
- # output ABI functions that have alternative names (with ext suffix)
- print '/* these functions are in the ABI, but have alternative names */'
- print 'static const struct gl_function_remap MESA_alt_functions[] = {'
- for ext in extensions:
- funcs = []
- for f in extension_functions[ext]:
- # test if the function is in the ABI and has alt names
- if f.is_abi() and len(f.entry_points) > 1:
- funcs.append(f)
- if not funcs:
- continue
- print ' /* from %s */' % ext
- for f in funcs:
- print ' { %5d, _gloffset_%s },' \
- % (pool_indices[f], f.name)
- print ' { -1, -1 }'
- print '};'
- print ''
-
- print '#endif /* need_MESA_remap_table */'
- print ''
-
- # output remap helpers for DRI drivers
-
- for ext in extensions:
- funcs = []
- remapped = []
- for f in extension_functions[ext]:
- if f.assign_offset:
- # these are handled above
- remapped.append(f)
- else:
- # these functions are either in the
- # abi, or have offset -1
- funcs.append(f)
-
- print '#if defined(need_%s)' % (ext)
- if remapped:
- print '/* functions defined in MESA_remap_table_functions are excluded */'
-
- # output extension functions that need to be mapped
- print 'static const struct gl_function_remap %s_functions[] = {' % (ext)
- for f in funcs:
- if f.offset >= 0:
- print ' { %5d, _gloffset_%s },' \
- % (pool_indices[f], f.name)
- else:
- print ' { %5d, -1 }, /* %s */' % \
- (pool_indices[f], f.name)
- print ' { -1, -1 }'
- print '};'
-
- print '#endif'
- print ''
-
- return
-
-
-def show_usage():
- print "Usage: %s [-f input_file_name]" % sys.argv[0]
- sys.exit(1)
+import license
+import gl_XML
-if __name__ == '__main__':
- file_name = "gl_API.xml"
- try:
- (args, trail) = getopt.getopt(sys.argv[1:], "f:")
- except Exception,e:
- show_usage()
+def get_function_spec(func):
+ sig = ""
+ # derive parameter signature
+ for p in func.parameterIterator():
+ if p.is_padding:
+ continue
+ # FIXME: This is a *really* ugly hack. :(
+ tn = p.type_expr.get_base_type_node()
+ if p.is_pointer():
+ sig += 'p'
+ elif tn.integer:
+ sig += 'i'
+ elif tn.size == 4:
+ sig += 'f'
+ else:
+ sig += 'd'
+
+ spec = [sig]
+ for ent in func.entry_points:
+ spec.append("gl" + ent)
+
+ # spec is terminated by an empty string
+ spec.append('')
+
+ return spec
- for (arg,val) in args:
- if arg == "-f":
- file_name = val
- api = gl_XML.parse_GL_API( file_name )
+class PrintGlRemap(gl_XML.gl_print_base):
+ def __init__(self):
+ gl_XML.gl_print_base.__init__(self)
+
+ self.name = "remap_helper.py (from Mesa)"
+ self.license = license.bsd_license_template % ("Copyright (C) 2009 Chia-I Wu <olv@0xlab.org>", "Chia-I Wu")
+ return
+
+
+ def printRealHeader(self):
+ print('#include "main/dispatch.h"')
+ print('#include "main/remap.h"')
+ print('')
+ return
+
+
+ def printBody(self, api):
+ pool_indices = {}
+
+ print('/* this is internal to remap.c */')
+ print('#ifndef need_MESA_remap_table')
+ print('#error Only remap.c should include this file!')
+ print('#endif /* need_MESA_remap_table */')
+ print('')
+
+ print('')
+ print('static const char _mesa_function_pool[] =')
+
+ # output string pool
+ index = 0;
+ for f in api.functionIterateAll():
+ pool_indices[f] = index
+
+ spec = get_function_spec(f)
+
+ # a function has either assigned offset, fixed offset,
+ # or no offset
+ if f.assign_offset:
+ comments = "will be remapped"
+ elif f.offset > 0:
+ comments = "offset %d" % f.offset
+ else:
+ comments = "dynamic"
+
+ print(' /* _mesa_function_pool[%d]: %s (%s) */' \
+ % (index, f.name, comments))
+ for line in spec:
+ print(' "%s\\0"' % line)
+ index += len(line) + 1
+ print(' ;')
+ print('')
+
+ print('/* these functions need to be remapped */')
+ print('static const struct gl_function_pool_remap MESA_remap_table_functions[] = {')
+ # output all functions that need to be remapped
+ # iterate by offsets so that they are sorted by remap indices
+ for f in api.functionIterateByOffset():
+ if not f.assign_offset:
+ continue
+ print(' { %5d, %s_remap_index },' \
+ % (pool_indices[f], f.name))
+ print(' { -1, -1 }')
+ print('};')
+ print('')
+ return
+
+
+def _parser():
+ """Parse input options and return a namsepace."""
+ parser = argparse.ArgumentParser()
+ parser.add_argument('-f', '--filename',
+ default="gl_API.xml",
+ metavar="input_file_name",
+ dest='file_name',
+ help="An xml description file.")
+ return parser.parse_args()
+
+
+def main():
+ """Main function."""
+ args = _parser()
+
+ api = gl_XML.parse_GL_API(args.file_name)
+
+ printer = PrintGlRemap()
+ printer.Print(api)
- printer = PrintGlRemap()
- printer.Print( api )
+
+if __name__ == '__main__':
+ main()
projects / mesa.git / blobdiff