// Initializes go:ngine; this first attempts to initialize OpenGL and then open a window to your supplied specifications with a GL 3.3-or-higher profile.
func Init(fullscreen bool, ctx ngctx.CtxProvider) (err error) {
var (
glVerIndex = len(ugl.KnownVersions) - 1
badVer, tmpDirPath string
glVer float64
)
UserIO.ctx = ctx
if err = ufs.EnsureDirExists(Core.fileIO.resolveLocalFilePath(Options.AppDir.Temp.BaseName)); err != nil {
return
}
defer runtime.GC()
if len(Options.AppDir.Temp.BaseName) > 0 {
for _, diagTmpDirName := range []string{Options.AppDir.Temp.ShaderSources, Options.AppDir.Temp.CachedTextures} {
tmpDirPath = Core.fileIO.resolveLocalFilePath(filepath.Join(Options.AppDir.Temp.BaseName, diagTmpDirName))
if err = ufs.EnsureDirExists(tmpDirPath); err != nil {
return
}
}
for _, diagTmpDirName := range []string{Options.AppDir.Temp.ShaderSources} {
tmpDirPath = Core.fileIO.resolveLocalFilePath(filepath.Join(Options.AppDir.Temp.BaseName, diagTmpDirName))
if err = ufs.ClearDirectory(tmpDirPath); err != nil {
return
}
}
}
if Options.Initialization.GlContext.CoreProfile.ForceFirst {
for i, v := range ugl.KnownVersions {
if v == Options.Initialization.GlContext.CoreProfile.VersionHint {
glVerIndex = i
break
}
}
}
tryInit:
glVer, UserIO.Window.fullscreen = ugl.KnownVersions[glVerIndex], fullscreen
if err = UserIO.init(glVer); err == nil {
if err, badVer = ogl.init(); err == nil && len(badVer) == 0 {
Stats.reset()
Loop.init()
if err = Core.init(); err != nil {
return
}
Diag.LogIfGlErr("INIT")
} else if len(badVer) > 0 && !Options.Initialization.GlContext.CoreProfile.ForceFirst {
Options.Initialization.GlContext.CoreProfile.ForceFirst = true
UserIO.isCtxInit, UserIO.Window.isCreated = false, false
goto tryInit
}
} else if Options.Initialization.GlContext.CoreProfile.ForceFirst && (glVerIndex > 0) {
glVerIndex--
UserIO.isCtxInit, UserIO.Window.isCreated = false, false
goto tryInit
} else {
badVer = ogl.lastBadVer
}
if len(badVer) > 0 {
err = errf(ogl.versionErrorMessage(glMinVerStr, badVer))
}
return
}
func LoadSchema(uri string, localCopy bool) (sd *Schema, err error) {
var protocol, localPath string
var rc io.ReadCloser
if pos := strings.Index(uri, protSep); pos < 0 {
protocol = "http" + protSep
} else {
protocol = uri[:pos+len(protSep)]
uri = uri[pos+len(protSep):]
}
if localCopy {
if localPath = filepath.Join(PkgGen.BaseCodePath, uri); !ufs.FileExists(localPath) {
if err = ufs.EnsureDirExists(filepath.Dir(localPath)); err == nil {
err = unet.DownloadFile(protocol+uri, localPath)
}
}
if err == nil {
if sd, err = loadSchemaFile(localPath, uri); sd != nil {
sd.loadLocalPath = localPath
}
}
} else if rc, err = unet.OpenRemoteFile(protocol + uri); err == nil {
defer rc.Close()
sd, err = loadSchema(rc, uri, "")
}
return
}
func main() {
if false {
cfg.altTryFile.only, cfg.altTryFile.pkgName = true, "glutil"
cfg.altTryFile.funcs = []string{"AttachShader", "BufferData", "BufferSubData", "CreateProgram", "CreateShader", "GenBuffers", "GenerateMipmap", "GenTextures", "GenVertexArrays", "ShaderSource", "TexImage2D", "TexStorage2D", "TexSubImage2D"}
cfg.altTryFile.outPath = ugo.GopathSrcGithub("go3d", "go-opengl", "util", "-gen-try.go")
}
flag.Parse()
if cfg.minVer = parseVersion(*flagMinVer); cfg.minVer.major < 1 {
panic("What kind of minver is that?")
}
if len(*flagGenExts) > 0 {
if *flagGenExts == "*" {
cfg.genExtsAll = true
} else {
cfg.genExts = strings.Split(*flagGenExts, " ")
}
}
if err = specDoc.LoadFile(*flagSpecFile, nil); err != nil {
panic(err)
}
cfg.outDirPath = filepath.Join(*flagOutDir, "core")
if err = ufs.EnsureDirExists(cfg.outDirPath); err != nil {
panic(err)
}
if cfg.genExtsAll {
xmlWalkExts()
}
xmlWalkTypes()
xmlWalkEnums()
xmlWalkFuncs()
if err = newGlPack().makeAllFiles(); err != nil {
panic(err)
}
}
func (me *Schema) MakeGoPkgSrcFile() (goOutFilePath string, err error) {
var goOutDirPath = filepath.Join(filepath.Dir(me.loadLocalPath), goPkgPrefix+filepath.Base(me.loadLocalPath)+goPkgSuffix)
goOutFilePath = filepath.Join(goOutDirPath, path.Base(me.loadUri)+".go")
var bag = newPkgBag(me)
for _, inc := range me.XMLIncludedSchemas {
bag.Schema = inc
inc.makePkg(bag)
}
bag.Schema = me
me.hasElemAnnotation.makePkg(bag)
bag.appendFmt(true, "")
me.makePkg(bag)
if err = ufs.EnsureDirExists(filepath.Dir(goOutFilePath)); err == nil {
err = ufs.WriteTextFile(goOutFilePath, bag.assembleSource())
}
return
}
// Mkdirs ensures that the directory is created.
func (fs OSUtil) Mkdirs(dir string) error {
return ufs.EnsureDirExists(dir)
}