Added VGA grayscale and choose screen type

VGA render can transform to grayscale and applying color. Green, amber and white.
2017-07-17 23:04:50 +09:00
parent f8229f6cbd
commit ccea4a189a
6 changed files with 93 additions and 8 deletions
--- a/src/ibm.h
+++ b/src/ibm.h
@@ -737,6 +737,7 @@ extern int serial_enabled[2];
 extern int lpt_enabled, bugger_enabled;

 extern int invert_display;
+extern int video_grayscale;

 uint32_t svga_color_transform(uint32_t color);