From bbf1dabb542e8da3a0147cb1d757f2b84fb969ef Mon Sep 17 00:00:00 2001
From: Alex Faria <3195321+alexfaria@users.noreply.github.com>
Date: Tue, 24 Feb 2026 15:30:33 +0000
Subject: [PATCH 1/4] Fix trailing ghost vertical edge on right edge of
 character on antialiased text

---
 src/bb_ep_gfx.inl | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/bb_ep_gfx.inl b/src/bb_ep_gfx.inl
index 349b740..79faa28 100644
--- a/src/bb_ep_gfx.inl
+++ b/src/bb_ep_gfx.inl
@@ -1147,6 +1147,9 @@ int bbepWriteStringCustom(FASTEPDSTATE *pBBEP, const void *pFont, int x, int y,
                 for (ty=dy; ty<end_y+1 && ty+1 < height; ty++) {
                     uint8_t u8, u8Count, u8Color;
                     g5_decode_line(&g5dec, &u8Cache[(ty & 1) * iLineSize]);
+                    if (w & 7) {
+                        u8Cache[(ty & 1) * iLineSize + iLineSize - 1] &= u8EndMask;
+                    }
                     if (ty & 1 && ty/2 >= 0) {
                         Scale2Gray(u8Cache, iLineSize, iLineSize); // convert a pair of lines
                         s = u8Cache;

From eeae3096664ca4e639ac38324acc3405d9333002 Mon Sep 17 00:00:00 2001
From: Alex Faria <3195321+alexfaria@users.noreply.github.com>
Date: Tue, 24 Feb 2026 15:40:19 +0000
Subject: [PATCH 2/4] Invert the gray colours for anti-aliased text if the
 background is black

---
 src/bb_ep_gfx.inl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/bb_ep_gfx.inl b/src/bb_ep_gfx.inl
index 79faa28..7a835b0 100644
--- a/src/bb_ep_gfx.inl
+++ b/src/bb_ep_gfx.inl
@@ -1156,7 +1156,7 @@ int bbepWriteStringCustom(FASTEPDSTATE *pBBEP, const void *pFont, int x, int y,
                         u8 = *s++; // grab first byte
                         u8Count = 4;
                         for (tx=x+x_off; tx<x+x_off+tw && tx < width; tx+=2) {
-                            u8Color = grayColors[u8>>6];
+                            u8Color = grayColors[iBG == BBEP_BLACK ? 3 - (u8>>6) : u8>>6]; // invert the color if we're on a black background
                             (*pBBEP->pfnSetPixelFast)(pBBEP, tx/2, ty/2, u8Color);
                             u8 <<= 2;
                             u8Count--;

From 866353349d2773eaa6d887455a60dfb8a08478c5 Mon Sep 17 00:00:00 2001
From: Alex Faria <3195321+alexfaria@users.noreply.github.com>
Date: Tue, 24 Feb 2026 16:08:39 +0000
Subject: [PATCH 3/4] Clear line buffer before decoding in antialiasing

---
 src/bb_ep_gfx.inl | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/bb_ep_gfx.inl b/src/bb_ep_gfx.inl
index 7a835b0..e6f270b 100644
--- a/src/bb_ep_gfx.inl
+++ b/src/bb_ep_gfx.inl
@@ -1146,7 +1146,9 @@ int bbepWriteStringCustom(FASTEPDSTATE *pBBEP, const void *pFont, int x, int y,
                 memset(u8Cache, 0, iLineSize*2); // start with 2 lines of white (gray table is inverted)
                 for (ty=dy; ty<end_y+1 && ty+1 < height; ty++) {
                     uint8_t u8, u8Count, u8Color;
-                    g5_decode_line(&g5dec, &u8Cache[(ty & 1) * iLineSize]);
+                    uint8_t *lineBuf = &u8Cache[(ty & 1) * iLineSize];
+                    memset(lineBuf, 0, iLineSize);
+                    g5_decode_line(&g5dec, lineBuf);
                     if (w & 7) {
                         u8Cache[(ty & 1) * iLineSize + iLineSize - 1] &= u8EndMask;
                     }

From 2217c120c61836a780a4d96273bda4dcd75c3bdc Mon Sep 17 00:00:00 2001
From: Alex Faria <3195321+alexfaria@users.noreply.github.com>
Date: Wed, 25 Feb 2026 00:33:41 +0000
Subject: [PATCH 4/4] Skip background pixels when rendering AA fonts

Only call pfnSetPixelFast when the computed font color differs from the background (iBG). This prevents drawing transparent/background pixels, avoiding overlap artifacts (e.g., with italic fonts) and reducing unnecessary pixel writes.
---
 src/bb_ep_gfx.inl | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/bb_ep_gfx.inl b/src/bb_ep_gfx.inl
index e6f270b..bb1e941 100644
--- a/src/bb_ep_gfx.inl
+++ b/src/bb_ep_gfx.inl
@@ -1159,7 +1159,11 @@ int bbepWriteStringCustom(FASTEPDSTATE *pBBEP, const void *pFont, int x, int y,
                         u8Count = 4;
                         for (tx=x+x_off; tx<x+x_off+tw && tx < width; tx+=2) {
                             u8Color = grayColors[iBG == BBEP_BLACK ? 3 - (u8>>6) : u8>>6]; // invert the color if we're on a black background
-                            (*pBBEP->pfnSetPixelFast)(pBBEP, tx/2, ty/2, u8Color);
+                            if (u8Color != iBG) {
+                                // draw the pixel if it's not transparent
+                                // avoid overlapping the previous character's pixels if the font is Italic for example
+                                (*pBBEP->pfnSetPixelFast)(pBBEP, tx/2, ty/2, u8Color);
+                            }
                             u8 <<= 2;
                             u8Count--;
                             if (u8Count == 0) {