prepare_culling_test.go RawHistoryFolder

1package render
2
3import (
4	"testing"
5
6	"github.com/bnema/nefergui/internal/layout"
7)
8
9func TestPrepareBoundsReservationForClippedGlyphs(t *testing.T) {
10	for _, op := range []string{"text", "preedit-text"} {
11		t.Run(op, func(t *testing.T) {
12			cmd := glyphCommand(t, "a")
13			cmd.Op = op
14			run := cmd.Runs[0]
15			glyph := run.Glyphs[0]
16			run.Glyphs = make([]layout.Glyph, 50000)
17			for i := range run.Glyphs {
18				run.Glyphs[i] = glyph
19				run.Glyphs[i].Y = 10000
20			}
21			cmd.Runs = []layout.Run{run}
22			p, err := NewPreparer(256, 2)
23			if err != nil {
24				t.Fatal(err)
25			}
26			f, err := p.Prepare([]layout.Command{cmd}, 1, 100, 100)
27			if err != nil {
28				t.Fatal(err)
29			}
30			if len(f.Quads) != 0 || cap(f.Quads) > maxQuadPrealloc {
31				t.Fatalf("clipped glyphs: len=%d cap=%d", len(f.Quads), cap(f.Quads))
32			}
33		})
34	}
35}
36
37func TestPrepareGrowsBeyondReservationForVisibleQuads(t *testing.T) {
38	p, err := NewPreparer(256, 2)
39	if err != nil {
40		t.Fatal(err)
41	}
42	cmds := rectCommands(maxQuadPrealloc + 100)
43	f, err := p.Prepare(cmds, 1, 100, len(cmds)+1)
44	if err != nil || len(f.Quads) != len(cmds) {
45		t.Fatalf("visible quads: got %d want %d, error %v", len(f.Quads), len(cmds), err)
46	}
47}