mirror of
https://github.com/godotengine/godot.git
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181 lines
4.3 KiB
Python
181 lines
4.3 KiB
Python
#! /usr/bin/env python
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import sys
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if (len(sys.argv) < 2):
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print("usage: make_glwrapper.py <headers>")
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sys.exit(255)
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functions = []
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types = []
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constants = []
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READ_FUNCTIONS = 0
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READ_TYPES = 1
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READ_CONSTANTS = 2
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read_what = READ_TYPES
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def read_file(f):
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while(True):
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line = f.readline()
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if (line == ""):
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break
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line = line.replace("\n", "").strip()
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"""
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if (line.find("[types]")!=-1):
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read_what=READ_TYPES
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continue
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elif (line.find("[constants]")!=-1):
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read=READ_TYPES
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continue
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elif (line.find("[functions]")!=-1):
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read_what=READ_FUNCTIONS
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continue
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"""
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if (line.find("#define") != -1):
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if (line.find("0x") == -1 and line.find("GL_VERSION") == -1):
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continue
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constants.append(line)
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elif (line.find("typedef") != -1):
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if (line.find("(") != -1 or line.find(")") != -1 or line.find("ARB") != -1 or line.find("EXT") != -1 or line.find("GL") == -1):
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continue
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types.append(line)
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elif (line.find("APIENTRY") != -1 and line.find("GLAPI") != -1):
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if (line.find("ARB") != -1 or line.find("EXT") != -1 or line.find("NV") != -1):
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continue
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line = line.replace("APIENTRY", "")
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line = line.replace("GLAPI", "")
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glpos = line.find(" gl")
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if (glpos == -1):
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glpos = line.find("\tgl")
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if (glpos == -1):
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continue
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ret = line[:glpos].strip()
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line = line[glpos:].strip()
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namepos = line.find("(")
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if (namepos == -1):
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continue
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name = line[:namepos].strip()
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line = line[namepos:]
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argpos = line.rfind(")")
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if (argpos == -1):
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continue
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args = line[1:argpos]
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funcdata = {}
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funcdata["ret"] = ret
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funcdata["name"] = name
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funcdata["args"] = args
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functions.append(funcdata)
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print(funcdata)
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for path in sys.argv[1:]:
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with open(path, "r") as f:
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read_file(f)
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# print(types)
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# print(constants)
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# print(functions)
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f = open("glwrapper.h", "w")
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f.write("#ifndef GL_WRAPPER\n")
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f.write("#define GL_WRAPPER\n\n\n")
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header_code = """\
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#if defined(__gl_h_) || defined(__GL_H__)
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#error gl.h included before glwrapper.h
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#endif
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#if defined(__glext_h_) || defined(__GLEXT_H_)
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#error glext.h included before glwrapper.h
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#endif
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#if defined(__gl_ATI_h_)
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#error glATI.h included before glwrapper.h
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#endif
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#define __gl_h_
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#define __GL_H__
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#define __glext_h_
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#define __GLEXT_H_
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#define __gl_ATI_h_
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#define GL_TRUE 1
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#define GL_FALSE 0
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#define GL_ZERO 0
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#define GL_ONE 1
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#define GL_NONE 0
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#define GL_NO_ERROR 0
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\n\n
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"""
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f.write("#include <stddef.h>\n\n\n")
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f.write(header_code)
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f.write("#ifdef __cplusplus\nextern \"C\" {\n#endif\n\n\n")
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f.write("#if defined(_WIN32) && !defined(__CYGWIN__)\n")
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f.write("#define GLWRP_APIENTRY __stdcall\n")
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f.write("#else\n")
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f.write("#define GLWRP_APIENTRY \n")
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f.write("#endif\n\n")
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for x in types:
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f.write(x + "\n")
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f.write("\n\n")
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for x in constants:
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f.write(x + "\n")
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f.write("\n\n")
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for x in functions:
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f.write("extern " + x["ret"] + " GLWRP_APIENTRY (*__wrapper_" + x["name"] + ")(" + x["args"] + ");\n")
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f.write("#define " + x["name"] + " __wrapper_" + x["name"] + "\n")
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f.write("\n\n")
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f.write("typedef void (*GLWrapperFuncPtr)(void);\n\n")
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f.write("void glWrapperInit( GLWrapperFuncPtr (*wrapperFunc)(const char*) );\n")
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f.write("#ifdef __cplusplus\n}\n#endif\n")
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f.write("#endif\n\n")
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f.close()
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f = open("glwrapper.c", "w")
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f.write("\n\n")
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f.write("#include \"glwrapper.h\"\n")
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f.write("\n\n")
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for x in functions:
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f.write(x["ret"] + " GLWRP_APIENTRY (*__wrapper_" + x["name"] + ")(" + x["args"] + ")=NULL;\n")
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f.write("\n\n")
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f.write("void glWrapperInit( GLWrapperFuncPtr (*wrapperFunc)(const char*) ) {\n")
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f.write("\n")
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for x in functions:
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f.write("\t__wrapper_" + x["name"] + "=(" + x["ret"] + " GLWRP_APIENTRY (*)(" + x["args"] + "))wrapperFunc(\"" + x["name"] + "\");\n")
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f.write("\n\n")
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f.write("}\n")
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f.write("\n\n")
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f.close()
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