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71 lines
2.0 KiB
Go
71 lines
2.0 KiB
Go
//go:build js
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package webgl2
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import (
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"syscall/js"
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"aego/core/handle"
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"aego/core/log"
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)
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func (d *Device) restore() {
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d.lost = false
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d.contextGen++
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d.targetErrors = [16]string{}
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d.targetErrorCount = 0
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// Extension objects and optional capabilities belong to the context generation.
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d.queryCaps()
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d.cache.Invalidate()
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d.initState()
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for k, fbo := range d.fbos {
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d.obj.drop(fbo)
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delete(d.fbos, k)
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}
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d.obj.drop(d.bb.fbo)
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d.obj.drop(d.bb.color)
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d.obj.drop(d.bb.depth)
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d.bb = backbuffer{}
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d.buffers.Each(func(_ handle.Handle[glBuffer], b *glBuffer) {
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d.obj.reuse(b.id, d.call(d.f.CreateBuffer))
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b.last.Reset()
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d.uploadBuffer(b, b.shadow)
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})
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d.textures.Each(func(_ handle.Handle[glTexture], t *glTexture) {
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d.obj.reuse(t.id, d.call(d.f.CreateTexture))
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d.uploadTexture(t)
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})
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d.samplers.Each(func(_ handle.Handle[glSampler], s *glSampler) {
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d.obj.reuse(s.id, d.call(d.f.CreateSampler))
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d.applySampler(s.id, s.desc)
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})
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failed := 0
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d.shaders.Each(func(_ handle.Handle[glShader], s *glShader) {
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prog, err := d.link(s.desc)
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if err != nil {
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failed++
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d.log.Error("shader cannot be rebuilt after the context loss", log.F("label", s.desc.Label), log.F("err", err.Error()))
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d.obj.reuse(s.program, js.Null())
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return
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}
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d.obj.reuse(s.program, prog)
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d.bindProgramSlots(prog, s.program, s.desc.Label)
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})
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d.pipelines.Each(func(_ handle.Handle[glPipeline], p *glPipeline) {
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d.obj.reuse(p.vao, d.call(d.f.CreateVertexArray))
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p.bind.Invalidate()
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d.setupVAO(p)
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})
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d.queries.Each(func(_ handle.Handle[glQuery], q *glQuery) {
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d.obj.reuse(q.id, d.call(d.f.CreateQuery))
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q.active, q.issued, q.canceled = false, false, true
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})
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d.activeQuery = 0
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if err := d.initOutput(); err != nil {
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d.log.Error("the output pass cannot be rebuilt", log.F("err", err.Error()))
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}
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d.cache.Invalidate()
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d.restores++
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d.log.Info("WebGL context restored", log.F("buffers", d.buffers.Len()), log.F("textures", d.textures.Len()), log.F("shaders_failed", failed))
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}
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