Patch #1121337 (CGA rendering in early LEC titles).

Differences against patch:
  o Updated documentation
  o Fixed text colors
  o Implemented Hercules dithering

Ditherers are based on loom ega and monkey ega, so for zak and mm they're
wrong, i.e. these games look better than with original ditherers.

TODO:
  Proper ditherers for zak & MM
  EGA ditherers for VGA SCUMM v5 games

svn-id: r16816

1 files changed, 22 insertions, 0 deletions

diff --git a/scumm/palette.cpp b/scumm/palette.cpp
index b4f8ab8e43..9f0b0cd445 100644
--- a/scumm/palette.cpp
+++ b/scumm/palette.cpp
@@ -48,6 +48,28 @@ void ScummEngine::setupAmigaPalette() {
 	setPalColor(15, 255, 255, 255);
 }
 
+void ScummEngine::setupHercPalette() {
+	setPalColor( 0,   0,   0,   0);
+	setPalColor( 1, 0xAE, 0x69, 0x38);
+
+	// Setup cursor palette
+	setPalColor( 7, 170, 170, 170);
+	setPalColor( 8,  85,  85,  85);
+	setPalColor(15, 255, 255, 255);
+}
+
+void ScummEngine::setupCGAPalette() {
+	setPalColor( 0,   0,   0,   0);
+	setPalColor( 1,   0, 168, 168);
+	setPalColor( 2, 168,   0, 168);
+	setPalColor( 3, 168, 168, 168);
+
+	// Setup cursor palette
+	setPalColor( 7, 170, 170, 170);
+	setPalColor( 8,  85,  85,  85);
+	setPalColor(15, 255, 255, 255);
+}
+
 void ScummEngine::setupEGAPalette() {
 	setPalColor( 0,   0,   0,   0);
 	setPalColor( 1,   0,   0, 170);