184 lines
3.8 KiB
Python
184 lines
3.8 KiB
Python
#! /usr/bin/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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for x in (range(len(sys.argv)-1)):
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f=open(sys.argv[x+1],"r")
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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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#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=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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