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feat(godot): surfaceless color-fill quads for AE* fades (opening no longer opaque-grey)

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Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
This commit is contained in:
gamer147
2026-07-08 19:09:18 -04:00
parent 6992f303f6
commit ce6be0ee9a
1 changed files with 35 additions and 2 deletions
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37
godot/Main.cs
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@@ -257,10 +257,21 @@ public partial class Main : Godot.Control
_lastClockGen = clockGen;
foreach (var v in _vm.Gfx.SnapshotVisibleObjects()) // already ascending-handle = z-order
{
if (v.SurfaceResId == 0) continue; // render-target/blank surface (no file) — later phase
float a = AlphaFor(v, clockReset, clockDur) * (v.Alpha / 255f);
if (v.SurfaceResId == 0)
{
// A colored object with no bound surface = a fade/flash fill (e.g. fade-to-black). Fill its
// rect (full-screen when it has no size, the opening's case) with the tint at alpha. Uncolored
// surfaceless objects are render targets — still skipped (slice C).
if (v.Blend != Age.Engine.Model.BlendKind.Opaque)
{
int fw = v.W > 0 ? v.W : 800, fh = v.H > 0 ? v.H : 600;
FillQuad(v.DstX, v.DstY, fw, fh, v.Tint, a);
}
continue;
}
var bmp = _host.ResolveResIdTexture(v.SurfaceResId);
if (bmp == null) continue;
float a = AlphaFor(v, clockReset, clockDur) * (v.Alpha / 255f);
BlitLayer(bmp, v.ColorKey, v.Tint, v.SrcX, v.SrcY, v.W, v.H, v.DstX, v.DstY, a);
}
_screenTex.Update(_screen);
@@ -344,6 +355,28 @@ public partial class Main : Godot.Control
_screen.SetData(dw, dh, false, _screen.GetFormat(), dst);
}
// Alpha-blend a solid tint (0xRRGGBB) rectangle over the screen — the surfaceless fade/flash fill.
private void FillQuad(int dstX, int dstY, int w, int h, long tint, float alpha)
{
int ia = (int)(System.Math.Clamp(alpha, 0f, 1f) * 255);
if (ia == 0) return;
int tr = (int)((tint >> 16) & 0xff), tg = (int)((tint >> 8) & 0xff), tb = (int)(tint & 0xff);
byte[] dst = _screen.GetData();
int dw = _screen.GetWidth(), dh = _screen.GetHeight();
for (int y = 0; y < h; y++)
for (int x = 0; x < w; x++)
{
int dxp = dstX + x, dyp = dstY + y;
if (dxp < 0 || dyp < 0 || dxp >= dw || dyp >= dh) continue;
int di = (dyp * dw + dxp) * 4;
dst[di] = (byte)((tr * ia + dst[di] * (255 - ia)) / 255);
dst[di + 1] = (byte)((tg * ia + dst[di + 1] * (255 - ia)) / 255);
dst[di + 2] = (byte)((tb * ia + dst[di + 2] * (255 - ia)) / 255);
dst[di + 3] = (byte)System.Math.Min(255, dst[di + 3] + ia);
}
_screen.SetData(dw, dh, false, _screen.GetFormat(), dst);
}
// Make colorkey-matching texels transparent (native colorkey is baked at surface load).
private static void BakeColorKey(Image img, long colorKey)
{