From 531f0c7528968e99e8335ee6e08f2f4e99778c78 Mon Sep 17 00:00:00 2001
From: IanSB <isb@clara.co.uk>
Date: Sat, 28 Dec 2019 16:35:12 +0000
Subject: [PATCH] Add colour genie palettes

---
 src/osd.c | 175 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 src/osd.h |   3 +
 2 files changed, 178 insertions(+)

diff --git a/src/osd.c b/src/osd.c
index 519f492b..955c49d0 100644
--- a/src/osd.c
+++ b/src/osd.c
@@ -95,6 +95,9 @@ static const char *palette_names[] = {
    "Mono (6 level)",
    "TI-99/4a 14 Col",
    "Spectrum 48K 8 Col",
+   "Colour Genie S24",
+   "Colour Genie S25",
+   "Colour Genie N25",   
    "Just Red",
    "Just Green",
    "Just Blue",
@@ -1949,7 +1952,179 @@ void osd_update_palette() {
             break;
 
 */
+         case PALETTE_CGS24:
+            if ((i & 0x30) == 0x30) {
+            int fix = i;
+            
+            switch (fix & 0x0f) {
+                case 12 : 
+                    r=234;g=234;b=234;
+                break;
+                case 10 : 
+                    r=31;g=157;b=0;
+                break;
+                case 13 : 
+                    r=188;g=64;b=0;
+                break;
+                case 11 : 
+                    r=238;g=195;b=14;
+                break; 
+                case 9 : 
+                    r=235;g=111;b=43;
+                break;
+                case 7 : 
+                    r=94;g=129;b=255;
+                break;
+                case 14 : 
+                    r=125;g=255;b=251;
+                break;
+                case 1 : 
+                    r=255;g=172;b=255;
+                break;     
+                case 6 : 
+                    r=171;g=255;b=74;
+                break;
+                case 15 : 
+                    r=94;g=94;b=94;
+                break;
+                case 8 : 
+                    r=234;g=234;b=234;
+                break;
+                case 4 : 
+                    r=78;g=239;b=204;
+                break; 
+                case 3 : 
+                    r=152;g=32;b=255;
+                break;
+                case 2 : 
+                    r=47;g=83;b=255;
+                break;
+                case 5 : 
+                    r=255;g=242;b=61;
+                break;
+                case 0 : 
+                    r=37;g=37;b=37;
+                break;                   
+            }
 
+            } else {
+            r=0;g=0;b=0;
+            }
+         break;            
+         case PALETTE_CGS25:
+         if ((i & 0x30) == 0x30) {
+            switch (i & 0x0f) {
+                case 12 : 
+                    r=234;g=234;b=234;
+                break;
+                case 10 : 
+                    r=31;g=157;b=0;
+                break;
+                case 13 : 
+                    r=188;g=64;b=0;
+                break;
+                case 11 : 
+                    r=238;g=195;b=14;
+                break; 
+                case 9 : 
+                    r=235;g=111;b=43;
+                break;
+                case 7 : 
+                    r=94;g=129;b=255;
+                break;
+                case 14 : 
+                    r=125;g=255;b=251;
+                break;
+                case 1 : 
+                    r=255;g=172;b=255;
+                break;     
+                case 6 : 
+                    r=47;g=83;b=255;
+                break;
+                case 15 : 
+                    r=234;g=234;b=234;
+                break;
+                case 8 : 
+                    r=255;g=242;b=61;
+                break;
+                case 4 : 
+                    r=78;g=239;b=204;
+                break; 
+                case 3 : 
+                    r=171;g=255;b=74;
+                break;
+                case 2 : 
+                    r=94;g=94;b=94;
+                break;
+                case 5 : 
+                    r=152;g=32;b=255;
+                break;
+                case 0 : 
+                    r=37;g=37;b=37;
+                break;         
+            }
+            } else {
+            r=0;g=0;b=0;
+            }   
+         break;   
+         case PALETTE_CGN25:
+         if ((i & 0x30) == 0x30) {
+            switch (i & 0x0f) {
+                case 12 : 
+                    r=234;g=234;b=234;
+                break;
+                case 10 : 
+                    r=171;g=255;b=74;
+                break;
+                case 13 : 
+                    r=203;g=38;b=94;
+                break;
+                case 11 : 
+                    r=255;g=242;b=61;
+                break; 
+                case 9 : 
+                    r=235;g=111;b=43;
+                break;
+                case 7 : 
+                    r=47;g=83;b=255;
+                break;
+                case 14 : 
+                    r=124;g=255;b=234;
+                break;
+                case 1 : 
+                    r=152;g=32;b=255;
+                break;     
+                case 6 : 
+                    r=188;g=223;b=255;
+                break;
+                case 15 : 
+                    r=94;g=94;b=94;
+                break;
+                case 8 : 
+                    r=234;g=255;b=39;
+                break;
+                case 4 : 
+                    r=138;g=103;b=255;
+                break; 
+                case 3 : 
+                    r=140;g=140;b=140;
+                break;
+                case 2 : 
+                    r=31;g=196;b=140;
+                break;
+                case 5 : 
+                    r=199;g=78;b=255;
+                break;
+                case 0 : 
+                    r=255;g=255;b=255;
+                break;                   
+            }
+         
+            } else {
+            r=0;g=0;b=0;
+            }   
+         break;   
+            
          case PALETTE_RED:
             m = (i & 7) * 255 / 7;
             r = m; g = 0; b = 0;
diff --git a/src/osd.h b/src/osd.h
index 76b83585..8a0179c3 100644
--- a/src/osd.h
+++ b/src/osd.h
@@ -42,6 +42,9 @@ enum {
    PALETTE_MONO2,
    PALETTE_TI,
    PALETTE_SPECTRUM48K,
+   PALETTE_CGS24,
+   PALETTE_CGS25,
+   PALETTE_CGN25,
    PALETTE_RED,
    PALETTE_GREEN,
    PALETTE_BLUE,