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#!/usr/bin/python
# -*- coding: utf-8 -*-
import os
import sys
def RemoveAnnotation(line):
if line.find(":") >= 0:
annotation = line[line.find(":"): line.find(" ", line.find(":"))]
return line.replace(annotation, "*")
else:
return line
def generate_api(lines):
externs = []
i = 0
skipFunctions = ["glTexImage2D", "glTexSubImage2D", "glShaderSource"]
for line in lines:
if line.find("API_ENTRY(") >= 0: # a function prototype
returnType = line[0: line.find(" API_ENTRY(")]
functionName = line[line.find("(") + 1: line.find(")")] #extract GL function name
parameterList = line[line.find(")(") + 2: line.find(") {")]
#if line.find("*") >= 0:
# extern = "%s Debug_%s(%s);" % (returnType, functionName, parameterList)
# externs.append(extern)
# continue
if functionName in skipFunctions:
sys.stderr.write("!\n! skipping function '%s'\n!\n" % (functionName))
continue
parameters = parameterList.split(',')
paramIndex = 0
if line.find("*") >= 0 and (line.find("*") < line.find(":") or line.find("*") > line.rfind(":")):
extern = "%s Debug_%s(%s);" % (returnType, functionName, RemoveAnnotation(parameterList))
sys.stderr.write("%s should be hand written\n" % (extern))
print "// FIXME: this function has pointers, it should be hand written"
externs.append(extern)
print "%s Debug_%s(%s)\n{" % (returnType, functionName, RemoveAnnotation(parameterList))
if returnType != "void":
print "\t%s ret = 0;" % (returnType)
print """\tgl_hooks_t::gl_t const * const _c = &getGLTraceThreadSpecific()->gl;
\tGLESv2Debugger::Message msg, cmd;
\tmsg.set_context_id(0);
\tmsg.set_has_next_message(true);
\tconst bool expectResponse = false;
\tmsg.set_expect_response(expectResponse);"""
print "\tmsg.set_function(GLESv2Debugger::Message_Function_%s);" % (functionName)
if parameterList == "void":
parameters = []
arguments = ""
paramTypes = []
paramNames = []
paramAnnotations = []
inout = ""
getData = ""
for parameter in parameters:
parameter = parameter.replace("const", "")
parameter = parameter.strip()
paramType = parameter.split(' ')[0]
paramName = parameter.split(' ')[1]
annotation = ""
arguments += paramName
if parameter.find(":") >= 0:
assert paramIndex == len(parameters) - 1 # only last parameter should be annotated
sys.stderr.write("%s is annotated: %s \n" % (functionName, paramType))
inout = paramType.split(":")[2]
annotation = paramType.split(":")[1]
paramType = paramType.split(":")[0]
assert paramType.find("void") < 0
count = 1
countArg = ""
if annotation.find("*") >= 0:
count = int(annotation.split("*")[0])
countArg = annotation.split("*")[1]
assert countArg in paramNames
elif annotation in paramNames:
count = 1
countArg = annotation
elif annotation == "GLstring":
annotation = "strlen(%s)" % (paramName)
else:
count = int(annotation)
print "\tmsg.set_arg%d(ToInt(%s));" % (paramIndex, paramName)
print "\tstd::string data;"
getData += "\t\t\tdata.reserve(%s * sizeof(%s));\n" % (annotation, paramType)
getData += "\t\t\tfor (unsigned i = 0; i < (%s); i++)\n" % (annotation)
getData += "\t\t\t\tdata.append((const char *)(%s + i), sizeof(*%s));\n" % (paramName, paramName)
getData += "\t\t\tmsg.set_data(data);"
else:
if paramIndex < len(parameters) - 1:
arguments += ', '
if paramType == "GLfloat" or paramType == "GLclampf" or paramType.find("*") >= 0:
print "\tmsg.set_arg%d(ToInt(%s));" % (paramIndex, paramName)
else:
print "\tmsg.set_arg%d(%s);" % (paramIndex, paramName)
paramTypes.append(paramType)
paramNames.append(paramName)
paramAnnotations.append(annotation)
paramIndex += 1
if line.find("*") >= 0 or line.find(":") >= 0:
print "\t// FIXME: check for pointer usage"
if inout in ["in", "inout"]:
print getData
print """\tSend(msg, cmd);
\tif (!expectResponse)
\t\tcmd.set_function(GLESv2Debugger::Message_Function_CONTINUE);
\twhile (true) {
\t\tmsg.Clear();
\t\tclock_t c0 = clock();
\t\tswitch (cmd.function()) {
\t\tcase GLESv2Debugger::Message_Function_CONTINUE:"""
if returnType == "void":
print "\t\t\t_c->%s(%s);" % (functionName, arguments)
else:
print "\t\t\tret = _c->%s(%s);" % (functionName, arguments)
if returnType == "GLboolean":
print "\t\t\tmsg.set_ret(ret);"
else:
print "\t\t\tmsg.set_ret(ToInt(ret));"
print "\t\t\tmsg.set_time((float(clock()) - c0) / CLOCKS_PER_SEC);"
print "\t\t\tmsg.set_context_id(0);"
print "\t\t\tmsg.set_function(GLESv2Debugger::Message_Function_%s);" % (functionName)
print """\t\t\tmsg.set_has_next_message(false);
\t\t\tmsg.set_expect_response(expectResponse);"""
if inout in ["out", "inout"]:
print getData
print """\t\t\tSend(msg, cmd);
\t\t\tif (!expectResponse)
\t\t\t\tcmd.set_function(GLESv2Debugger::Message_Function_SKIP);
\t\t\tbreak;
\t\tcase GLESv2Debugger::Message_Function_SKIP:"""
if returnType == "void":
print "\t\t\treturn;"
else:
print "\t\t\tif (cmd.has_ret())"
if returnType == "GLboolean":
print "\t\t\t\tret = cmd.ret();"
else:
print "\t\t\t\tret = FromInt<%s>(cmd.ret());" % (returnType)
print "\t\t\treturn ret;"
print """\t\tdefault:
\t\t\tASSERT(0); //GenerateCall(msg, cmd);
\t\t\tbreak;
\t\t}
\t}
}
"""
#break
print "// FIXME: the following functions should be written by hand"
for extern in externs:
print extern
if __name__ == "__main__":
print "// auto generated by generate_api_cpp.py\n"
print '''#include "src/header.h"\n'''
print "template<typename T> static int ToInt(const T & t) { STATIC_ASSERT(sizeof(T) == sizeof(int), bitcast); return (int &)t; }\n"
print "template<typename T> static T FromInt(const int & t) { STATIC_ASSERT(sizeof(T) == sizeof(int), bitcast); return (T &)t; }\n"
lines = open("gl2_api_annotated.in").readlines()
generate_api(lines)
#lines = open("gl2ext_api.in").readlines()
#generate_api(lines)
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