From 6d015d6e7c73a315eae435ad93c72c2a17c21926 Mon Sep 17 00:00:00 2001
From: Bodmer <bodmer@anola.net>
Date: Sun, 12 Feb 2023 19:30:46 +0000
Subject: [PATCH] Fix #2400 for GC9A01

An odd one this. Pixels get lost in a stream with the GC9A01. It appears the GC9A01 has a pixel stream time-out that stops new pixels in a started stream from being rendered.  No other  supported display behaves this way!

This is a GC9A01 specific patch.
---
 TFT_eSPI.cpp | 34 ++++++++++++++++++++++++++--------
 1 file changed, 26 insertions(+), 8 deletions(-)

diff --git a/TFT_eSPI.cpp b/TFT_eSPI.cpp
index 07e86c3..5c46bc8 100644
--- a/TFT_eSPI.cpp
+++ b/TFT_eSPI.cpp
@@ -4464,16 +4464,25 @@ void TFT_eSPI::drawWedgeLine(float ax, float ay, float bx, float by, float ar, f
       // Track edge to minimise calculations
       if (!endX) { endX = true; xs = xp; }
       if (alpha > HiAlphaTheshold) {
-        if (swin) { setWindow(xp, yp, width()-1, yp); swin = false; }
-        pushColor(fg_color);
+        #ifdef GC9A01_DRIVER
+          drawPixel(xp, yp, fg_color);
+        #else
+          if (swin) { setWindow(xp, yp, x1, yp); swin = false; }
+          pushColor(fg_color);
+        #endif
         continue;
       }
       //Blend color with background and plot
       if (bg_color == 0x00FFFFFF) {
         bg = readPixel(xp, yp); swin = true;
       }
-      if (swin) { setWindow(xp, yp, width()-1, yp); swin = false; }
-      pushColor(alphaBlend((uint8_t)(alpha * PixelAlphaGain), fg_color, bg));
+      #ifdef GC9A01_DRIVER
+        uint16_t pcol = alphaBlend((uint8_t)(alpha * PixelAlphaGain);
+        drawPixel(xp, yp, pcol, fg_color, bg));
+      #else
+        if (swin) { setWindow(xp, yp, x1, yp); swin = false; }
+        pushColor(alphaBlend((uint8_t)(alpha * PixelAlphaGain), fg_color, bg));
+      #endif
     }
   }
 
@@ -4492,16 +4501,25 @@ void TFT_eSPI::drawWedgeLine(float ax, float ay, float bx, float by, float ar, f
       // Track line boundary
       if (!endX) { endX = true; xs = xp; }
       if (alpha > HiAlphaTheshold) {
-        if (swin) { setWindow(xp, yp, width()-1, yp); swin = false; }
-        pushColor(fg_color);
+        #ifdef GC9A01_DRIVER
+          drawPixel(xp, yp, fg_color);
+        #else
+          if (swin) { setWindow(xp, yp, x1, yp); swin = false; }
+          pushColor(fg_color);
+        #endif
         continue;
       }
       //Blend colour with background and plot
       if (bg_color == 0x00FFFFFF) {
         bg = readPixel(xp, yp); swin = true;
       }
-      if (swin) { setWindow(xp, yp, width()-1, yp); swin = false; }
-      pushColor(alphaBlend((uint8_t)(alpha * PixelAlphaGain), fg_color, bg));
+      #ifdef GC9A01_DRIVER
+        uint16_t pcol = alphaBlend((uint8_t)(alpha * PixelAlphaGain);
+        drawPixel(xp, yp, pcol, fg_color, bg));
+      #else
+        if (swin) { setWindow(xp, yp, x1, yp); swin = false; }
+        pushColor(alphaBlend((uint8_t)(alpha * PixelAlphaGain), fg_color, bg));
+      #endif
     }
   }