func generateShadersSource(srcDirPath string, stripComments bool) (err error, newSrc string) {
var (
shaderSource shaderSrc
shaderName, tmpSrc string
srcBuf ustr.Buffer
)
srcBuf.Writeln("\togl.progs.Init()\n\togl.uber.init()")
allShaders := shaderSrcSortables{shaderSrcSortable{}, shaderSrcSortable{}, shaderSrcSortable{}, shaderSrcSortable{}, shaderSrcSortable{}, shaderSrcSortable{}}
incShaders := map[string]string{}
collectShaders(srcDirPath, &allShaders, incShaders, stripComments)
sort.Sort(allShaders.comp)
sort.Sort(allShaders.frag)
sort.Sort(allShaders.geo)
sort.Sort(allShaders.tessCtl)
sort.Sort(allShaders.tessEval)
sort.Sort(allShaders.vert)
allNames := map[string]bool{}
for varName, shaderSrcItem := range allShaders.mapAll() {
for _, shaderSource = range shaderSrcItem {
if shaderName = shaderSource.name[:strings.LastIndex(shaderSource.name, ".")]; !allNames[shaderName] {
srcBuf.Writeln("\togl.progs.AddNew(%#v)", shaderName)
allNames[shaderName] = true
}
srcBuf.Writeln("\togl.progs.Get(%#v).Sources.In.%s = %#v", shaderName, varName, includeShaders(shaderSource.name, shaderSource.src, incShaders))
}
}
for shaderName, tmpSrc = range incShaders {
srcBuf.Writeln("\togl.uber.rawSources[%#v] = %#v", shaderName[:strings.Index(shaderName, ".")], tmpSrc)
}
newSrc = srcBuf.String()
return
}
func (me *uberShaders) setShaderSourceFrag(job *uberShaderJob, fx *FxEffect, inputs map[string]bool) (fragSrc string, err error) {
var (
srcBody, srcHead ustr.Buffer
i int
shid string
op *FxProc
ops FxProcs
shFunc *uberShaderFunc
)
srcHead.Writeln("out vec3 out_Color;")
allOps := []FxProcs{fx.FxProcs, fx.ext}
for _, ops = range allOps {
for i = 0; i < len(ops); i++ {
if op = &ops[i]; op.Enabled {
if shid = Core.Render.Fx.procFuncs[op.procID]; len(shid) == 0 {
err = errf("uberShader.setShaderSourceFrag('%s') -- unknown fxProc ID '%s'", job.pname, op.procID)
return
}
if shFunc = me.allFuncs.fragment[shid]; shFunc == nil {
err = errf("uberShader.setShaderSourceFrag('%s') -- unknown fragment func '%s'", job.pname, shid)
return
}
me.setShaderSourceEnsureFunc(op, shFunc, &srcBody, inputs)
inputs[op.unifName("float", "MixWeight")] = true
for shid, _ = range inputs {
if job.quals[shid] = op.qualifiers(shid); len(job.quals[shid]) > 0 {
job.quals[shid] = job.quals[shid] + " "
}
}
}
}
}
for shid, _ = range inputs {
switch shid[:4] {
case "uni_":
uslice.StrAppendUnique(&job.progUnis, shid)
srcHead.Writeln("uniform %s %s;", me.inoutTypeSpec(shid), shid)
case "var_":
srcHead.Writeln("%sin %s %s;", job.quals[shid], me.inoutTypeSpec(shid), shid)
}
}
srcBody.Writeln("void main () {")
srcBody.Writeln("\tvec3 vCol = vec3(0);")
for _, ops = range allOps {
for i = 0; i < len(ops); i++ {
if op = &ops[i]; op.Enabled {
shFunc = me.allFuncs.fragment[Core.Render.Fx.procFuncs[op.procID]]
srcBody.Writeln("\tvCol = mix(vCol, %s%d(vCol), %s);", shFunc.name, op.procIndex, op.unifName("float", "MixWeight"))
}
}
}
srcBody.Writeln("\tout_Color = vCol;")
srcBody.Writeln("}")
fragSrc = srcHead.String() + "\n" + srcBody.String()
return
}
func (me *uberShaders) setShaderSourceVert(job *uberShaderJob, vertTech string, varyings map[string]bool) (vertSrc string, err error) {
var (
i int
srcBody, srcHead ustr.Buffer
shFunc *uberShaderFunc
inout, fname string
outputs = []string{"gl_Position"}
inputs = map[string]bool{}
)
for inout, _ = range varyings {
if inout[:4] == "var_" {
outputs = append(outputs, inout)
}
}
for i, inout = range outputs {
if fname = "vx_" + vertTech + "_" + inout; i > 0 {
srcHead.Writeln("%sout %s %s;", job.quals[inout], me.inoutTypeSpec(inout), inout)
}
if shFunc = me.allFuncs.vertex[fname]; shFunc == nil {
err = errf("uberShader.setShaderSourceVert('%s') -- unknown vertex func '%s'", job.pname, fname)
return
}
me.setShaderSourceEnsureFunc(nil, shFunc, &srcBody, inputs)
}
for inout, _ = range inputs {
switch inout[:4] {
case "att_":
uslice.StrAppendUnique(&job.progAtts, inout)
srcHead.Writeln("in %s %s;", me.inoutTypeSpec(inout), inout)
case "uni_":
uslice.StrAppendUnique(&job.progUnis, inout)
srcHead.Writeln("uniform %s %s;", me.inoutTypeSpec(inout), inout)
}
}
srcBody.Writeln("void main () {")
for _, inout = range outputs {
srcBody.Writeln("\t%s = vx_%s_%s();", inout, vertTech, inout)
}
srcBody.Writeln("}")
vertSrc = srcHead.String() + "\n" + srcBody.String()
return
}
func (me *FxEffect) UpdateRoutine() {
var (
i, tc int
buf ustr.Buffer
rt string
)
if len(me.KeepProcIDsLast) > 0 {
me.FxProcs.EnsureLast(me.KeepProcIDsLast...)
me.ext.EnsureLast(me.KeepProcIDsLast...)
}
ops, ext, counts := me.FxProcs, len(me.ext) > 0, make(map[string]int, len(me.FxProcs)+len(me.ext))
doOps:
for o := 0; o < len(ops); o++ {
if ops[o].Enabled {
buf.Write("_%s", ops[o].procID)
i = counts[ops[o].procID]
ops[o].setProcIndex(i)
counts[ops[o].procID] = i + 1
if ops[o].IsTex() {
tc++
}
}
}
if ext {
ext, ops = false, me.ext
goto doOps
}
me.uberName = buf.String()
for rt, _ = range Core.Render.KnownTechniques {
me.uberPnames[rt] = strf("uber_%s%s", rt, me.uberName)
}
thrRend.curEffect = nil
if tc > Stats.Programs.maxTexUnits {
Stats.Programs.maxTexUnits = tc
}
}
func makeEmbeds(srcDirPath string) {
defer wait.Done()
filePath := filepath.Join(srcDirPath, "splash.png")
var buf ustr.Buffer
buf.Writeln("\t//\tEmbedded binary from %s", filePath)
if raw := ufs.ReadBinaryFile(filePath, true); len(raw) > 0 {
if strings.HasSuffix(filePath, ".png") {
if src, _, err := image.Decode(bytes.NewReader(raw)); err == nil {
dst, _ := ugfx.CreateLike(src, false)
ugfx.PreprocessImage(src, dst, true, true, true)
w := new(bytes.Buffer)
png.Encode(w, dst)
raw = w.Bytes()
} else {
panic(err)
}
}
if len(raw) > 0 {
buf.Writeln("\tCore.Libs.Images.SplashScreen.InitFrom.RawData = %#v", raw)
}
}
newSrc.embeds = buf.String()
}