From 64339017929fc03f06e0814866fa86fef9abd151 Mon Sep 17 00:00:00 2001
From: Gavin Hurlbut <gjhurlbu@gmail.com>
Date: Mon, 19 Dec 2016 00:47:04 -0800
Subject: [PATCH 1/3] Add clearDisplay() and display() as stubs

---
 Adafruit_GFX.cpp | 16 ++++++++++++++++
 Adafruit_GFX.h   |  2 ++
 2 files changed, 18 insertions(+)

diff --git a/Adafruit_GFX.cpp b/Adafruit_GFX.cpp
index af98900..486fa3a 100644
--- a/Adafruit_GFX.cpp
+++ b/Adafruit_GFX.cpp
@@ -172,6 +172,22 @@ void Adafruit_GFX::writeLine(int16_t x0, int16_t y0, int16_t x1, int16_t y1,
   }
 }
 
+
+/**************************************************************************/
+/*!
+   @brief    Clear the display, overwrite in subclasses.
+*/
+/**************************************************************************/
+void Adafruit_GFX::clearDisplay() {}
+
+
+/**************************************************************************/
+/*!
+   @brief    Update the display, overwrite in subclasses.
+*/
+/**************************************************************************/
+void Adafruit_GFX::display() {}
+
 /**************************************************************************/
 /*!
    @brief    Start a display-writing routine, overwrite in subclasses.
diff --git a/Adafruit_GFX.h b/Adafruit_GFX.h
index 63c6ab6..1d363d2 100644
--- a/Adafruit_GFX.h
+++ b/Adafruit_GFX.h
@@ -43,6 +43,8 @@ public:
   virtual void writeLine(int16_t x0, int16_t y0, int16_t x1, int16_t y1,
                          uint16_t color);
   virtual void endWrite(void);
+  virtual void clearDisplay(void);
+  virtual void display(void);
 
   // CONTROL API
   // These MAY be overridden by the subclass to provide device-specific

From 3fbf5735a33cc6fff7f2942ae33c72bfc1d434d7 Mon Sep 17 00:00:00 2001
From: Gavin Hurlbut <gjhurlbu@gmail.com>
Date: Thu, 26 Jan 2023 22:34:29 -0500
Subject: [PATCH 2/3] Remove extra blank lines

---
 Adafruit_GFX.cpp | 2 --
 1 file changed, 2 deletions(-)

diff --git a/Adafruit_GFX.cpp b/Adafruit_GFX.cpp
index 486fa3a..0cc4878 100644
--- a/Adafruit_GFX.cpp
+++ b/Adafruit_GFX.cpp
@@ -172,7 +172,6 @@ void Adafruit_GFX::writeLine(int16_t x0, int16_t y0, int16_t x1, int16_t y1,
   }
 }
 
-
 /**************************************************************************/
 /*!
    @brief    Clear the display, overwrite in subclasses.
@@ -180,7 +179,6 @@ void Adafruit_GFX::writeLine(int16_t x0, int16_t y0, int16_t x1, int16_t y1,
 /**************************************************************************/
 void Adafruit_GFX::clearDisplay() {}
 
-
 /**************************************************************************/
 /*!
    @brief    Update the display, overwrite in subclasses.

From 3ca0b6a9d728b599108082a4e884187c03b6bd3a Mon Sep 17 00:00:00 2001
From: Gavin Hurlbut <gjhurlbu@gmail.com>
Date: Tue, 7 Mar 2023 16:43:49 -0500
Subject: [PATCH 3/3] Allow to skip SPI for tight FLASH situations

---
 Adafruit_GFX.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Adafruit_GFX.h b/Adafruit_GFX.h
index 1d363d2..c363641 100644
--- a/Adafruit_GFX.h
+++ b/Adafruit_GFX.h
@@ -10,7 +10,9 @@
 #include "gfxfont.h"
 
 #include <Adafruit_I2CDevice.h>
+#ifndef SKIP_SPI
 #include <Adafruit_SPIDevice.h>
+#endif
 
 /// A generic graphics superclass that can handle all sorts of drawing. At a
 /// minimum you can subclass and provide drawPixel(). At a maximum you can do a