static boolean createTagsForWildcardUsingFindfirst (const char *const pattern)
{
boolean resize = FALSE;
const size_t dirLength = baseFilename (pattern) - pattern;
#if defined (HAVE_FINDFIRST)
struct ffblk fileInfo;
int result = findfirst (pattern, &fileInfo, FA_DIREC);
while (result == 0)
{
const char *const entry = (const char *) fileInfo.ff_name;
resize |= createTagsForWildcardEntry (pattern, dirLength, entry);
result = findnext (&fileInfo);
}
#elif defined (HAVE__FINDFIRST)
struct _finddata_t fileInfo;
findfirst_t hFile = _findfirst (pattern, &fileInfo);
if (hFile != -1L)
{
do
{
const char *const entry = (const char *) fileInfo.name;
resize |= createTagsForWildcardEntry (pattern, dirLength, entry);
} while (_findnext (hFile, &fileInfo) == 0);
_findclose (hFile);
}
#endif
return resize;
}
/* Reject any tag "main" from a file named "configure". These appear in
* here-documents in GNU autoconf scripts and will add a haystack to the
* needle.
*/
static boolean hackReject (const vString* const tagName)
{
const char *const scriptName = baseFilename (vStringValue (File.name));
boolean result = (boolean) (strcmp (scriptName, "configure") == 0 &&
strcmp (vStringValue (tagName), "main") == 0);
return result;
}
/* Reject any tag "main" from a file named "configure". These appear in
* here-documents in GNU autoconf scripts and will add a haystack to the
* needle.
*/
static bool hackReject (const vString* const tagName)
{
const char *const scriptName = baseFilename (getInputFileName ());
bool result = (bool) (strcmp (scriptName, "configure") == 0 &&
strcmp (vStringValue (tagName), "main") == 0);
return result;
}
static langType getPatternLanguage (const char *const fileName)
{
langType result = LANG_IGNORE;
const char* base = baseFilename (fileName);
unsigned int i;
for (i = 0 ; i < LanguageCount && result == LANG_IGNORE ; ++i)
{
stringList* const ptrns = LanguageTable [i]->currentPatterns;
if (ptrns != NULL && stringListFileMatched (ptrns, base))
result = i;
}
return result;
}
extern void setExecutableName (const char *const path)
{
ExecutableProgram = path;
ExecutableName = baseFilename (path);
#ifdef VAXC
{
/* remove filetype from executable name */
char *p = strrchr (ExecutableName, '.');
if (p != NULL)
*p = '\0';
}
#endif
}
static void setOwnerDirectoryOfInputFile (const char *const fileName)
{
const char *const head = fileName;
const char *const tail = baseFilename (head);
if (File.path != NULL)
vStringDelete (File.path);
if (tail == head)
File.path = NULL;
else
{
const size_t length = tail - head - 1;
File.path = vStringNew ();
vStringNCopyS (File.path, fileName, length);
}
}
std::string baseFilename(const std::string &path)
{
size_t sep = path.find_last_of("/\\");
std::string filename;
if (sep == std::string::npos)
{
filename = path;
}
else if (sep == path.size() - 1)
{
return baseFilename(path.substr(0, path.size() - 1));
}
else
{
filename = path.substr(sep + 1);
}
return filename;
}
static bool createTagsForWildcardUsingFindfirst (const char *const pattern)
{
bool resize = false;
const size_t dirLength = baseFilename (pattern) - pattern;
#if defined (HAVE__FINDFIRST)
struct _finddata_t fileInfo;
findfirst_t hFile = _findfirst (pattern, &fileInfo);
if (hFile != -1L)
{
do
{
const char *const entry = (const char *) fileInfo.name;
resize |= createTagsForWildcardEntry (pattern, dirLength, entry);
} while (_findnext (hFile, &fileInfo) == 0);
_findclose (hFile);
}
#endif
return resize;
}
extern void makeFileTag (const char *const fileName)
{
boolean via_line_directive = (strcmp (fileName, getInputFileName()) != 0);
xtagType xtag = XTAG_UNKNOWN;
if (isXtagEnabled(XTAG_FILE_NAMES))
xtag = XTAG_FILE_NAMES;
if (isXtagEnabled(XTAG_FILE_NAMES_WITH_TOTAL_LINES))
xtag = XTAG_FILE_NAMES_WITH_TOTAL_LINES;
if (xtag != XTAG_UNKNOWN)
{
tagEntryInfo tag;
kindOption *kind;
kind = getInputLanguageFileKind();
Assert (kind);
kind->enabled = isXtagEnabled(XTAG_FILE_NAMES);
/* TODO: you can return here if enabled == FALSE. */
initTagEntry (&tag, baseFilename (fileName), kind);
tag.isFileEntry = TRUE;
tag.lineNumberEntry = TRUE;
markTagExtraBit (&tag, xtag);
if (via_line_directive || (!isXtagEnabled(XTAG_FILE_NAMES_WITH_TOTAL_LINES)))
{
tag.lineNumber = 1;
}
else
{
while (readLineFromInputFile () != NULL)
; /* Do nothing */
tag.lineNumber = getInputLineNumber ();
}
makeTagEntry (&tag);
}
}
// This takes all the names of all the files in baseFilenames and places each
// in a FilenameTriple with inputSuffix appended as the input filename, with
// placeholderSuffix appended as the placeholder filename, replacing the
// directory path with placeholderDirectory, and with outputSuffix appended
// as the output file, replacing the directory path with outputDirectory.
inline void FilePlaceholderManager::PrepareFilenames(
std::vector< std::string > const& baseFilenames,
std::string const inputDirectory,
std::string const& placeholderDirectory,
std::string const& outputDirectory )
{
filenameTriples.clear();
EnsureDirectoryExists( placeholderDirectory );
EnsureDirectoryExists( outputDirectory );
for( std::vector< std::string >::const_iterator
baseFilename( baseFilenames.begin() );
baseFilenames.end() > baseFilename;
++baseFilename )
{
currentTriple.inputFile.assign( inputDirectory + "/"
+ (*baseFilename) + inputSuffix );
currentTriple.placeholderFile.assign( placeholderDirectory + "/"
+ (*baseFilename) + placeholderSuffix );
currentTriple.outputFile.assign( outputDirectory + "/"
+ (*baseFilename) + outputSuffix );
filenameTriples.push_back( currentTriple );
}
whichTriple = filenameTriples.begin();
}
extern void setExecutableName (const char *const path)
{
ExecutableProgram = path;
ExecutableName = baseFilename (path);
}
int
main(int argc,
char** argv)
{
if (argc != 6) {
std::cout << "This program takes in input glad.h and outputs the include and implementation files for OSMesa OpenGL function and regular OpenGL functions." << std::endl;
std::cout << "Usage: generateGLIncludes <glad.h path> <output dir path> <namespace name> <baseFileName> <inlcude glad debug symbols>" << std::endl;
std::cout << "Example: generateGLIncludes /Users/alexandre/development/Natron/Global/gladRel/include/glad/glad.h /Users/alexandre/development/Natron/Engine Natron OSGLFunctions 1" << std::endl;
return 1;
}
QFile f(argv[1]);
if ( !f.open(QIODevice::ReadOnly) ) {
std::cout << "Could not open " << argv[1] << std::endl;
return 1;
}
// Check that output path exists
QDir outputDir(argv[2]);
if ( !outputDir.exists() ) {
std::cout << argv[2] << " does not seem to be a valid directory" << std::endl;
return 1;
}
QString namespaceName(argv[3]);
QString baseFilename(argv[4]);
bool supportGladDebug;
{
QString supportDebugSymbolsStr(argv[5]);
supportGladDebug = (bool)supportDebugSymbolsStr.toInt();
}
QString absoluteDirPath = outputDir.absolutePath();
QString outputHeaderFilename = absoluteDirPath + "/" + baseFilename + ".h";
QFile of_header(outputHeaderFilename);
if ( !of_header.open(QIODevice::WriteOnly) ) {
std::cout << "Could not open " << outputHeaderFilename.toStdString() << std::endl;
return 1;
}
QTextStream ots_header(&of_header);
QTextStream its(&f);
QString definesStr;
std::list<FunctionSignature> signatures;
QString functionTypedefsStr;
QString prevLine;
while ( !its.atEnd() ) {
// Read each line of glad.h
QString line = its.readLine();
{
// Search for a define
QString toFind = "#define GL_";
int found = line.indexOf(toFind);
if (found != -1) {
definesStr += line;
definesStr += "\n";
}
}
// Search for a function
QString typedefToken("typedef ");
QString pfnToken("(APIENTRYP PFNGL");
int foundFuncDef = line.indexOf(typedefToken);
int foundPNFToken = line.indexOf(pfnToken);
if ( (foundFuncDef != -1) && (foundPNFToken != -1) ) {
int pos = foundPNFToken + pfnToken.size();
int foundFirstEndParenthesis = line.indexOf(')', pos);
assert(foundFirstEndParenthesis != -1);
FunctionSignature signature;
QString lastFuncNameCaps = line.mid(pos, foundFirstEndParenthesis - pos);
signature.signature = line.mid(foundFirstEndParenthesis);
// "near" and "far" are defined as macros in windows.h
signature.signature.replace("GLdouble near, GLdouble far", "GLdouble nearVal, GLdouble farVal");
signature.returnType = line.mid( foundFuncDef + typedefToken.size(), foundPNFToken - 1 - ( foundFuncDef + typedefToken.size() ) );
QString funcTypeDefStr = "typedef ";
funcTypeDefStr += signature.returnType;
funcTypeDefStr += " (*PFNGL";
funcTypeDefStr += lastFuncNameCaps;
funcTypeDefStr += signature.signature;
funcTypeDefStr += "\n";
functionTypedefsStr += funcTypeDefStr;
// Remove the extraneous ; at the end of the signature
// Also remove the prepending )
signature.signature.remove(0, 1);
signature.signature.remove(signature.signature.size() - 1, 1);
signature.funcPNType = "PFNGL";
signature.funcPNType += lastFuncNameCaps;
// extract parameters
{
int i = 1; // start after the leading (
while ( i < signature.signature.size() ) {
QString param;
while ( signature.signature[i] != QChar(',') && signature.signature[i] != QChar(')') ) {
param.append(signature.signature[i]);
++i;
}
// Now only keep the name of the parameter
{
int j = param.size() - 1;
while ( j >= 0 && param[j].isLetterOrNumber() ) {
--j;
}
param = param.mid(j + 1);
}
signature.parameters.append(param);
assert( signature.signature[i] == QChar(',') || signature.signature[i] == QChar(')') );
++i; // bypass last character
if ( signature.signature[i] == QChar(')') ) {
break;
}
}
}
// we caught a function typedef before, we expect to read the following #define glXxxx function with the appropriate case
// in release glad.h, the next line is of the type GLAPI PFNGLCOLOR4FVPROC glad_glColor4fv;
// the line after that is the one we want #define glColor4fv glad_glColor4fv
line = its.readLine();
assert( !its.atEnd() );
line = its.readLine();
QString toFind("#define gl");
int foundDefine = line.indexOf(toFind);
if (foundDefine == -1) {
std::cout << "Parser failed to find #define glXXX statement 2 lines after a function typedef, make sure that you are running this program against a release version of glad.h" << std::endl;
return 1;
}
// Check that this is the same symbol
// Remove the PROC at the end of the func def
lastFuncNameCaps.remove("PROC");
int checkIndex = toFind.size();
QString symbolStart = line.mid(checkIndex);
assert( symbolStart.startsWith(lastFuncNameCaps, Qt::CaseInsensitive) );
{
int i = 8; // start on the g
//extract the function name
while ( i < line.size() && line.at(i) != QChar(' ') ) {
signature.funcName.push_back( line.at(i) );
++i;
}
}
signatures.push_back(signature);
} // if (foundFuncDef != -1 && foundPNFToken != -1) {
prevLine = line;
}
writeHeader(ots_header);
writePODs(ots_header);
ots_header <<
definesStr << "\n"
"\n";
ots_header <<
functionTypedefsStr << "\n"
"\n";
writeStartClass(namespaceName, ots_header);
// Define the singleton
ots_header <<
" static OSGLFunctions<USEOPENGL>& getInstance()\n"
" {\n"
" static OSGLFunctions<USEOPENGL> instance;\n"
"\n"
" return instance;\n"
" }\n"
"\n"
" // load function, implemented in _gl.h and _mesa.h\n"
" void load_functions();\n"
"\n"
" // private constructor\n"
" OSGLFunctions() { load_functions(); }\n"
"\n";
// Declare member functions
for (std::list<FunctionSignature>::iterator it = signatures.begin(); it != signatures.end(); ++it) {
ots_header << " " << it->funcPNType << " _" << it->funcName << ";\n";
}
ots_header <<
"\n";
ots_header <<
"public:\n"
"\n";
ots_header <<
" // static non MT-safe load function that must be called once to initialize functions\n"
" static void load()\n"
" {\n"
" (void)getInstance();\n"
" }\n"
"\n"
" static bool isGPU()\n"
" {\n"
" return USEOPENGL;\n"
" }\n";
for (std::list<FunctionSignature>::iterator it = signatures.begin(); it != signatures.end(); ++it) {
QString lineStart = " static " + it->returnType + " " + it->funcName;
QString indentedSig = it->signature;
indentedSig.replace( ", ", ",\n" + QString(lineStart.size() + 1, ' ') );
ots_header << "\n" <<
lineStart << indentedSig << "\n"
" {\n";
if (it->returnType == "void") {
ots_header << " ";
} else {
ots_header << " return ";
}
ots_header << "getInstance()._" << it->funcName << "(";
QStringList::const_iterator next = it->parameters.begin();
if ( !it->parameters.isEmpty() ) {
++next;
}
for (QStringList::const_iterator it2 = it->parameters.begin(); it2 != it->parameters.end(); ++it2) {
ots_header << *it2;
if ( next != it->parameters.end() ) {
ots_header << ", ";
++next;
}
}
ots_header <<
");\n"
" }\n";
}
writeEndClass(namespaceName, ots_header);
writeFooter(ots_header);
writeImplementationCppFile(namespaceName, baseFilename, signatures, absoluteDirPath, "gl", true, supportGladDebug);
writeImplementationCppFile(namespaceName, baseFilename, signatures, absoluteDirPath, "mesa", false, supportGladDebug);
return 0;
} // main
extern langType getFileLanguage (const char *const fileName)
{
langType language = Option.language;
if (language == LANG_AUTO)
{
vString* spec;
FILE* input;
language = LANG_IGNORE;
verbose ("Get file language for %s\n", fileName);
input = fopen (fileName, "rb");
{
const char* baseName = baseFilename (fileName);
verbose (" pattern: %s\n", baseName);
language = getPatternLanguage (baseName, input);
if (input)
rewind (input);
else
goto template_file;
}
if (language == LANG_IGNORE && (spec = extracEmacsModeAtFirstLine (input)))
{
verbose (" emacs mode at the first line: %s\n", vStringValue (spec));
language = getSpecLanguage (vStringValue (spec), input);
vStringDelete (spec);
}
rewind(input);
if (language == LANG_IGNORE && (spec = extractInterpreter (input)))
{
verbose (" interpreter: %s\n", vStringValue (spec));
language = getSpecLanguage (vStringValue (spec), input);
vStringDelete (spec);
}
rewind(input);
if (language == LANG_IGNORE && (spec = extractEmacsModeLanguageAtEOF (input)))
{
verbose (" emacs mode at the EOF: %s\n", vStringValue (spec));
language = getSpecLanguage (vStringValue (spec), input);
vStringDelete (spec);
}
rewind(input);
if (language == LANG_IGNORE && (spec = extractVimFileType (input)))
{
verbose (" vim modeline: %s\n", vStringValue (spec));
language = getSpecLanguage (vStringValue (spec), input);
vStringDelete (spec);
}
rewind(input);
template_file:
if (language == LANG_IGNORE)
{
const char* const tExt = ".in";
char* baseName = baseFilenameSansExtensionNew (fileName, tExt);
if (baseName)
{
verbose (" pattern + template(%s): %s\n", tExt, baseName);
language = getPatternLanguage(baseName, input);
eFree (baseName);
}
}
if (input)
fclose (input);
}
return language;
}