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