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54 lines
1.7 KiB
Go
54 lines
1.7 KiB
Go
package render
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import (
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"testing"
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"aego/core/mathx"
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"aego/render/sprite"
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"aego/render/view"
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)
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func TestResolveRectContainsReceiverAtCameraRotations(t *testing.T) {
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target := mathx.Rect{W: 1280, H: 720}
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f := ViewFrame{view: view.ScreenView(1280, 720, 1), resolveBounds: mathx.AABB2{Min: mathx.Vec2{X: 200, Y: 105}, Max: mathx.Vec2{X: 246, Y: 172}}}
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for _, r := range []float32{0, .19, -.27} {
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f.view.Camera.Rotation = r
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cut, ok := f.resolveRect(target)
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if !ok {
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t.Fatal("small bounded receiver fell back")
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}
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for _, x := range []float32{200, 246} {
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for _, y := range []float32{105, 172} {
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p := f.view.WorldToScreen(mathx.Vec2{X: x, Y: y})
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if target.Contains(p) && !cut.Contains(p) {
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t.Fatalf("%v outside %v", p, cut)
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}
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}
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}
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}
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f.resolveBounds = mathx.AABB2{Min: mathx.Vec2{X: -1e20, Y: -3}, Max: mathx.Vec2{X: 1e20, Y: 3}}
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if _, ok := f.resolveRect(target); ok {
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t.Fatal("imprecise world extent used as a scissor")
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}
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}
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func TestResolveBackgroundAmbiguousByteFallsBack(t *testing.T) {
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if _, ok := resolveBackground(mathx.Color{A: .5}, 1); ok {
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t.Fatal("transparent clear qualified")
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}
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// Inverse Reinhard at the sRGB 100/101 boundary, so half-float storage may choose either code.
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linear := mathx.SRGBToLinear(100.5 / 255)
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v := linear / (1 - linear)
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if _, ok := resolveBackground(mathx.Color{R: v, A: 1}, 1); ok {
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t.Fatal("ambiguous clear qualified")
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}
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}
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func TestSparseResolveRejectsCancellationBeforeBounds(t *testing.T) {
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f := ViewFrame{view: view.ScreenView(1280, 720, 1)}
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d := sprite.Draw{Position: mathx.Vec2{X: 105000000}, Origin: mathx.Vec2{X: 5000000}, Size: mathx.Vec2{X: 21, Y: 1}}
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if f.stableSpriteBounds(&d) {
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t.Fatal("canceling vertex operands qualified for sparse resolve")
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}
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}
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