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43 lines
1.3 KiB
Go
43 lines
1.3 KiB
Go
package render
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import (
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"testing"
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"aego/render/material"
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"aego/render/shader"
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)
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func TestTrimmedMaterialSteadyStateDoesNotAllocate(t *testing.T) {
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r, dev := newTestRenderer(t, 256)
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draws := testDraws(t, r, 128, 3)
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sh := &material.Shader{Name: "trimmed", Domain: shader.DomainSprite, Variants: []material.Variant{{}}, Schema: material.NewSchema([]shader.Param{{Name: "Code", Kind: shader.KindInt, Instance: true, IntDefault: 16777217}}, 0, 1)}
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m, _ := material.New("trimmed", sh, 0, shader.BlendPremultiplied)
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for i := range draws {
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draws[i].Material = m
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draws[i].Region.W, draws[i].Region.H = 3, 2
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draws[i].Region.SourceW, draws[i].Region.SourceH = 8, 6
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draws[i].Region.TrimX, draws[i].Region.TrimY = 2, 1
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draws[i].FlipX = i%2 == 0
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draws[i].FlipY = i%3 == 0
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}
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v := worldView()
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frame := func() {
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f := dev.BeginFrame(1280, 720)
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r.BeginFrame(f, 1280, 720, 1)
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vf := r.View(v)
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vf.Sprites(draws)
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vf.End()
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r.EndFrame()
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dev.EndFrame()
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}
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for range 5 {
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frame()
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}
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if n := testing.AllocsPerRun(20, frame); n != 0 {
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t.Fatalf("trim + typed material frame allocates %.1f objects", n)
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}
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if r.Stats().Batches != 1 || r.Stats().InstanceBytes != 128*(52+shader.TrimStride) || r.Stats().MaterialLaneBytes != 128*shader.LaneStride {
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t.Fatalf("trim/override streams split or uncounted %+v", r.Stats())
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}
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}
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