#!/usr/bin/python
import sys
+import os
+import xml.dom
+import xml.dom.minidom
if len(sys.argv)<2:
print """Usage:
sys.exit(0)
ext = sys.argv[1]
+out_base = None
+if ext.endswith(".glext"):
+ fn = ext
+ ext = None
+ ver = None
+ secondary = []
+ for line in open(fn):
+ parts = line.split()
+ if parts[0]=="extension":
+ ext = parts[1]
+ elif parts[0]=="core_version":
+ ver = parts[1]
+ elif parts[0]=="secondary":
+ secondary.append(parts[1])
+ if len(sys.argv)>=3:
+ out_base = os.path.splitext(sys.argv[2])[0]
+else:
+ secondary = sys.argv[2:]
+ ver = None
+ if secondary and secondary[0][0].isdigit():
+ ver = secondary.pop(0)
+
exttype = ext.split('_')[0]
-secondary = sys.argv[2:]
-ver = None
-if secondary and secondary[0][0].isdigit():
- ver = secondary.pop(0)
bp_ext = None
+if not out_base:
+ out_base = ext.lower()
+
class Function:
def __init__(self, name):
self.name = name
+ self.typedef = None
self.version = None
self.category = None
self.vectorequiv = None
funcs = {}
cur_func = None
-def parse_file(fn):
- for line in open(fn):
- if line[0]=='#' or line.find(':')>=0:
- continue
- elif line[0]=='\t':
- if cur_func:
- parts = line.split()
- if parts[0]=="category":
- cur_func.category = parts[1]
- elif parts[0]=="vectorequiv":
- cur_func.vectorequiv = parts[1]
- elif parts[0]=="alias":
- cur_func.aliases.append(parts[1])
- elif parts[0]=="version":
- cur_func.version = parts[1]
- elif parts[0]=="delete":
- del funcs[cur_func.name]
- cur_func = None
+def get_nested_elements(elem, path):
+ if '/' in path:
+ head, tail = path.split('/', 1)
+ result = []
+ for e in elem.getElementsByTagName(head):
+ result += get_nested_elements(e, tail)
+ return result
+ else:
+ return elem.getElementsByTagName(path)
+
+def get_text_contents(node):
+ result = ""
+ for c in node.childNodes:
+ if c.nodeType==xml.dom.Node.TEXT_NODE or c.nodeType==xml.dom.Node.CDATA_SECTION_NODE:
+ result += c.data
else:
- paren = line.find('(')
- if paren>0:
- name = line[:paren]
- if name in funcs:
- cur_func = funcs[name]
- else:
- cur_func = Function(name)
- funcs[name] = cur_func
-
-parse_file("gl.spec")
-parse_file("gl.spec.fixes")
+ result += get_text_contents(c)
+ return result
+
+def parse_file(fn):
+ doc = xml.dom.minidom.parse(fn)
+ root = doc.documentElement
+ commands = get_nested_elements(root, "commands/command")
+ for cmd in commands:
+ name = get_text_contents(get_nested_elements(cmd, "proto/name")[0])
+ func = funcs.get(name)
+ if not func:
+ func = Function(name)
+ funcs[name] = func
+
+ aliases = cmd.getElementsByTagName("alias")
+ for a in aliases:
+ func.aliases.append(a.getAttribute("name"))
+
+ vec = cmd.getElementsByTagName("vecequiv")
+ if vec:
+ func.vectorequiv = vec[0].getAttribute("name")
+
+ features = root.getElementsByTagName("feature")
+ for feat in features:
+ api = feat.getAttribute("api")
+ if api=="gl":
+ version = feat.getAttribute("number")
+
+ commands = get_nested_elements(feat, "require/command")
+ for c in commands:
+ name = c.getAttribute("name")
+ func = funcs.get(name)
+ if func:
+ func.version = version
+
+ if feat.getAttribute("name")=="MSPGL_REMOVE":
+ commands = get_nested_elements(feat, "remove/command")
+ for c in commands:
+ name = c.getAttribute("name")
+ if name in funcs:
+ del funcs[name]
+
+ extensions = get_nested_elements(root, "extensions/extension")
+ for ext in extensions:
+ ext_name = ext.getAttribute("name")
+ if ext_name.startswith("GL_"):
+ ext_name = ext_name[3:]
+ supported = ext.getAttribute("supported").split('|')
+ if "gl" in supported:
+ commands = get_nested_elements(ext, "require/command")
+ for c in commands:
+ name = c.getAttribute("name")
+ func = funcs.get(name)
+ if func:
+ func.category = ext_name
+
+parse_file("gl.xml")
+parse_file("gl.fixes.xml")
for f in funcs.itervalues():
if f.category==ext or f.category in secondary:
- if not f.aliases and f.vectorequiv:
- for g in funcs.itervalues():
- if g!=f and g.vectorequiv==f.vectorequiv and f.name.startswith(g.name):
- f.aliases.append(g.name)
- break
-
for a in f.aliases:
- if a in funcs:
- funcs[a].extfunc = f
+ aliasfunc = funcs.get(a)
+ if aliasfunc:
+ aliasfunc.extfunc = f
def is_relevant(f):
if f.category==ext and not f.aliases:
funcs.sort(key=(lambda f: f.name))
for f in funcs:
- if f.extfunc:
- if not ver:
- ver = f.version
- if not f.category.startswith("VERSION_"):
- bp_ext = f.category
- if not f.extfunc and not f.name.endswith(exttype):
+ if not ver:
+ ver = f.version
+
+ if f.category and not f.name.endswith(exttype):
bp_ext = f.category
+ if f.extfunc:
+ f.typedef = "PFN%sPROC"%f.extfunc.name.upper()
+ else:
+ f.typedef = "PFN%sPROC"%f.name.upper()
+
if ver:
ver = map(int, ver.split('.'))
-out = file(ext.lower()+".h", "w")
+out = file(out_base+".h", "w")
out.write("#ifndef MSP_GL_%s_\n"%ext.upper())
out.write("#define MSP_GL_%s_\n"%ext.upper())
out.write("""
-#include "extension.h"
-#include "gl.h"
-#include <GL/glext.h>
+#include <msp/gl/extension.h>
+#include <msp/gl/gl.h>
namespace Msp {
namespace GL {
if funcs:
out.write("\n")
for f in funcs:
- out.write("extern PFNGL%sPROC gl%s;\n"%(f.name.upper(), f.name))
+ out.write("extern %s %s;\n"%(f.typedef, f.name))
out.write("\nextern Extension %s;\n"%ext)
#endif
""")
-out = file(ext.lower()+".cpp", "w")
+out = file(out_base+".cpp", "w")
out.write("#include \"%s.h\"\n"%ext.lower())
out.write("""
if funcs:
out.write("\n")
for f in funcs:
- out.write("PFNGL%sPROC gl%s = 0;\n"%(f.name.upper(), f.name))
+ out.write("%s %s = 0;\n"%(f.typedef, f.name))
out.write("\nExtension::SupportLevel init_%s()\n{\n"%ext.lower())
if ver:
out.write(" || is_supported(\"GL_%s\")"%bp_ext)
out.write(")\n\t{\n")
for f in funcs:
- out.write("\t\tgl%s = reinterpret_cast<PFNGL%sPROC>(get_proc_address(\"gl%s\"));\n"%(f.name, f.name.upper(), f.name))
+ out.write("\t\t%s = reinterpret_cast<%s>(get_proc_address(\"%s\"));\n"%(f.name, f.typedef, f.name))
out.write("\t\treturn Extension::CORE;\n")
out.write("\t}\n")
if ext!=bp_ext:
n = f.name
if f.extfunc:
n = f.extfunc.name
- out.write("\t\tgl%s = reinterpret_cast<PFNGL%sPROC>(get_proc_address(\"gl%s\"));\n"%(f.name, f.name.upper(), n))
+ out.write("\t\t%s = reinterpret_cast<%s>(get_proc_address(\"%s\"));\n"%(f.name, f.typedef, n))
out.write("\t\treturn Extension::EXTENSION;\n")
out.write("\t}\n")
out.write("\treturn Extension::UNSUPPORTED;\n")
projects / libs / gl.git / blobdiff