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Fix hidden text rendering issue by splitting bg/fg rendering into two buffers and draw calls

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This commit is contained in:
bloeys
2023-01-17 04:25:25 +04:00
parent d15f80b8a2
commit 7c3b766064
2 changed files with 188 additions and 149 deletions
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12
main.go
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@ -225,7 +225,7 @@ func (nt *nterm) Init() {
panic("Failed to create atlas from font file. Err: " + err.Error())
}
nt.GlyphRend.OptValues.BgColor = gglm.NewVec4(0, 0, 0, 0)
nt.GlyphRend.OptValues.BgColor = &nt.Settings.DefaultBgColor
nt.GlyphRend.SetOpts(glyphs.GlyphRendOpt_BgColor)
// if consts.Mode_Debug {
@ -314,8 +314,8 @@ func (nt *nterm) MainUpdate() {
}
}
// We might have way more chars than lines and so the first line might not start
// at the first char, but midway in the buffer, so we ensure that scrollPosRel
// Since we have more chars than lines the first line might not start
// at the first char but midway in the buffer, so we ensure that scrollPosRel
// starts at the first line
firstValidLineStartIndexRel := int64(nt.textBuf.RelIndexFromWriteCount(nt.firstValidLine.StartIndex_WriteCount))
if nt.scrollPosRel < firstValidLineStartIndexRel {
@ -348,17 +348,13 @@ func (nt *nterm) MainUpdate() {
func (nt *nterm) DrawGlyphGrid() {
// @BUG: Not sure what is wrong yet, but it seems letters are being written to grid
// correctly (and we can print to console), and they are being sent to glyphRend correctly, but some don't display??
top := float32(nt.GlyphRend.ScreenHeight) - nt.GlyphRend.Atlas.LineHeight
nt.lastCmdCharPos.Data = gglm.NewVec3(0, top, 0).Data
if input.KeyClicked(sdl.K_F7) {
print("")
}
for y := 0; y < len(nt.glyphGrid.Tiles); y++ {
row := nt.glyphGrid.Tiles[y]
for x := 0; x < len(row); x++ {
g := &row[x]