Added ability to choose monochrome displays (green, amber, and gray) for CGA MDA, and Hercules graphics cards, based on VileRancour's DOSBox patch.

src/vid_mda.c

@@ -10,6 +10,9 @@
 #include "timer.h"
 #include "video.h"
 #include "vid_mda.h"
+#ifndef __unix
+#include "win-cgapal.h"
+#endif
 
 typedef struct mda_t
 {
@@ -298,6 +301,11 @@ void *mda_init()
 
 	overscan_x = overscan_y = 0;
 
+#ifndef __unix
+        cga_palette = device_get_config_int("rgb_type");
+	rebuild_cgapal();
+#endif
+
         return mda;
 }
 
@@ -316,6 +324,40 @@ void mda_speed_changed(void *p)
         mda_recalctimings(mda);
 }
 
+#ifndef __unix
+static mda_config_t hercules_config[] =
+{
+        {
+                .name = "rgb_type",
+                .description = "Display type",
+                .type = CONFIG_SELECTION,
+                .selection =
+                {
+                        {
+                                .description = "Default 4-color",
+                                .value = 0
+                        },
+                        {
+                                .description = "Green, 4-color",
+                                .value = 1
+                        },
+                        {
+                                .description = "Amber, 4-color",
+                                .value = 3
+                        },
+                        {
+                                .description = "Gray, 4-color",
+                                .value = 5
+                        },
+                        {
+                                .description = ""
+                        }
+                },
+                .default_int = 0
+        }
+};
+#endif
+
 device_t mda_device =
 {
         "MDA",
@@ -325,5 +367,10 @@ device_t mda_device =
         NULL,
         mda_speed_changed,
         NULL,
+#ifdef __unix
         NULL
+#else
+        NULL,
+	mda_config
+#endif
 };