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59 lines
1.8 KiB
Go
59 lines
1.8 KiB
Go
//go:build aego_gltest
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package gl
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import (
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"testing"
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"aego/core/mathx"
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"aego/render"
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"aego/render/material"
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"aego/render/shader"
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"aego/render/sprite"
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"aego/render/texture"
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"aego/tests/materialgolden"
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)
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func TestTrimmedAtlasOriginalUVAndFlipImages(t *testing.T) {
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r, dev, target := materialRig(t)
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sh := runtimeShader(t, "trim", `#pragma aego abi 1
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#include "engine/sprite.glsl"
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#pragma material
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uniform int Code; // @instance @default(1)
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#pragma end
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void fragment(){
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vec4 sampleColor=aego_sample_local(aego_local);
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bool good=Code==16777217 && sampleColor.a>0.99 && sampleColor.r>0.99
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&& aego_sample_local(vec2(0.05,0.05)).a==0.0;
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aego_out=good?vec4(aego_local,0.0,1.0):vec4(1.0,0.0,0.0,1.0);
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}`)
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m, _ := material.New("trim", sh, 0, shader.BlendPremultiplied)
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lanes := *m.DefaultLanes()
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param, _ := sh.Schema.Param("Code")
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material.PutLaneInt(&lanes, param, 16777217)
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data := texture.Solid(5, 4, mathx.Color{G: 1, A: 1})
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for y := 1; y < 3; y++ {
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for x := 1; x < 4; x++ {
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data.SetPixel(x, y, mathx.White)
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}
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}
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h, err := r.Textures().Upload(data, texture.UploadOptions{})
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if err != nil {
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t.Fatal(err)
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}
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reg := texture.Whole(h, 5, 4).Sub(1, 1, 3, 2)
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reg.SourceW, reg.SourceH, reg.TrimX, reg.TrimY = 8, 6, 2, 1
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pixels := make([]byte, 32*32*4)
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for i, name := range []string{"trim-none", "trim-x", "trim-y", "trim-xy"} {
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drawMaterialFrame(t, r, dev, target, func(v *render.ViewFrame) {
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v.Sprite(sprite.Draw{Region: reg, Position: mathx.Vec2{X: 16, Y: 16}, Size: mathx.Vec2{X: 16, Y: 12}, Origin: mathx.Vec2{X: .5, Y: .5}, Tint: mathx.White, Material: m, Lanes: &lanes, FlipX: i&1 != 0, FlipY: i&2 != 0})
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})
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if err := dev.ReadPixels(target, 0, 0, 32, 32, pixels); err != nil {
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t.Fatal(err)
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}
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if err := materialgolden.Compare(name, pixels, 2); err != nil {
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t.Fatalf("%s: %v", name, err)
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}
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}
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}
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