From c84e49748106d0af4f848c67c7b4415846241d0c Mon Sep 17 00:00:00 2001
From: prenticedavid <david.prentice@farming.co.uk>
Date: Wed, 23 Oct 2019 22:31:32 +0100
Subject: [PATCH] better way to seek to Palette.

---
 examples/showBMP_kbv_Uno/showBMP_kbv_Uno.ino | 3 +--
 examples/showBMP_not_Uno/showBMP_not_Uno.ino | 3 +--
 2 files changed, 2 insertions(+), 4 deletions(-)

diff --git a/examples/showBMP_kbv_Uno/showBMP_kbv_Uno.ino b/examples/showBMP_kbv_Uno/showBMP_kbv_Uno.ino
index 0aec12e..9711b1d 100644
--- a/examples/showBMP_kbv_Uno/showBMP_kbv_Uno.ino
+++ b/examples/showBMP_kbv_Uno/showBMP_kbv_Uno.ino
@@ -171,8 +171,7 @@ uint8_t showBMP(char *nm, int x, int y)
 
         if (bmpDepth <= PALETTEDEPTH) {   // these modes have separate palette
             //bmpFile.seek(BMPIMAGEOFFSET); //palette is always @ 54
-            bmpFile.seek(50); //colorsimportant
-            bmpFile.seek(read32() ? 122 : 54); //important or regular palette
+            bmpFile.seek(bmpImageoffset - (4<<bmpDepth)); //54 for regular, diff for colorsimportant
             bitmask = 0xFF;
             if (bmpDepth < 8)
                 bitmask >>= bmpDepth;
diff --git a/examples/showBMP_not_Uno/showBMP_not_Uno.ino b/examples/showBMP_not_Uno/showBMP_not_Uno.ino
index c1639b4..6b1c278 100644
--- a/examples/showBMP_not_Uno/showBMP_not_Uno.ino
+++ b/examples/showBMP_not_Uno/showBMP_not_Uno.ino
@@ -174,8 +174,7 @@ uint8_t showBMP(char *nm, int x, int y)
 
         if (bmpDepth <= PALETTEDEPTH) {   // these modes have separate palette
             //bmpFile.seek(BMPIMAGEOFFSET); //palette is always @ 54
-            bmpFile.seek(50); //colorsimportant
-            bmpFile.seek(read32() ? 122 : 54); //important or regular palette
+            bmpFile.seek(bmpImageoffset - (4<<bmpDepth)); //54 for regular, diff for colorsimportant
             bitmask = 0xFF;
             if (bmpDepth < 8)
                 bitmask >>= bmpDepth;