Dmitry Sergeev
57 lines
1.6 KiB
Go
57 lines
1.6 KiB
Go
package generator
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import (
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"testing"
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"mxl-pattern-generator/kernels"
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)
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func TestWGPUSMPTEPattern(t *testing.T) {
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const width, height = 1920, 1080
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shader, err := kernels.Read("static/smpteBars.wgsl")
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if err != nil {
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t.Fatalf("read shader: %v", err)
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}
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g, err := NewWGPUGenerator(width, height, string(shader))
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if err != nil {
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t.Fatalf("init: %v", err)
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}
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defer g.Close()
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buf := make([]byte, width*height*8/3)
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if err := g.GenerateFrame(buf, 0); err != nil {
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t.Fatalf("GenerateFrame: %v", err)
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}
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if err := g.GenerateFrame(buf, 1); err != nil {
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t.Fatalf("GenerateFrame 2: %v", err)
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}
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tests := []struct {
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name string
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x, y int
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wantY, wantCb, wantCr uint32
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}{
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{"top left gray flank", 100, 100, 414, 512, 512},
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{"top white bar", 300, 100, 721, 512, 512},
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{"top green bar", 960, 100, 534, 253, 207},
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{"top right gray flank", 1800, 100, 414, 512, 512},
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{"section 2 cyan flank", 100, 650, 754, 615, 64},
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{"section 2 minus I", 300, 650, 244, 612, 395},
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{"section 2 white", 600, 650, 721, 512, 512},
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{"section 2 blue flank", 1800, 650, 127, 960, 471},
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{"section 3 yellow flank", 100, 750, 877, 64, 553},
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{"section 3 plus Q", 300, 750, 141, 697, 606},
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{"section 3 red flank", 1800, 750, 250, 409, 960},
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{"bottom gray flank", 100, 900, 195, 512, 512},
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}
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for _, tt := range tests {
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t.Run(tt.name, func(t *testing.T) {
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y, cb, cr := sampleV210(buf, width, tt.x, tt.y)
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if y != tt.wantY || cb != tt.wantCb || cr != tt.wantCr {
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t.Fatalf("pixel (%d,%d): got %d/%d/%d, want %d/%d/%d",
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tt.x, tt.y, y, cb, cr, tt.wantY, tt.wantCb, tt.wantCr)
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}
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})
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}
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}
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