Disable XBIOS driver for mouse and joystick under MiNT. Will write a …

…driver for /dev/mouse later.

README.MiNT

@@ -68,9 +68,9 @@ OpenGL (using Mesa offscreen rendering driver)
 - Dependent driver combinations:
 Video   Kbd     Mouse   Timer   Joysticks
 xbios   ikbd    ikbd    vbl(2)  ikbd
-xbios   gemdos  xbios   vbl(2)  xbios
-xbios   bios    xbios   vbl(2)  xbios
-gem     gem     gem(1)  vbl(2)  xbios
+xbios   gemdos  xbios   vbl(2)  xbios(3)
+xbios   bios    xbios   vbl(2)  xbios(3)
+gem     gem     gem(1)  vbl(2)  xbios(3)
 
 Audio   O/S     Misc
 dma8    All     Uses MFP Timer A interrupt
@@ -87,11 +87,14 @@ Joypad driver always uses hardware access.
 OpenGL driver always uses OSMesa.
 
 (1) GEM does not report relative mouse motion, so xbios mouse driver is used
-to report this type event.
+to report this type event. Under MiNT, using XBIOS mouse driver is not possible.
 
 (2) If you build SDL with threads using the GNU pth library, timers are
 supported via the pth library.
 
+(3) Redirecting XBIOS vectors does not work under MiNT, so it is disabled in
+this case.
+
 ==============================================================================
 V.  Environment variables:
 

src/video/ataricommon/SDL_biosevents.c

@@ -35,6 +35,7 @@ static char rcsid =
 
 /* Mint includes */
 #include <mint/osbind.h>
+#include <mint/cookie.h>
 
 #include "SDL.h"
 #include "SDL_sysevents.h"
@@ -71,7 +72,8 @@ static void UpdateSpecialKeys(int special_keys_state);
 
 void AtariBios_InitOSKeymap(_THIS)
 {
-	int i;
+	int i, vectors_mask;
+	unsigned long dummy;
 
 	memset(bios_currentkeyboard, 0, sizeof(bios_currentkeyboard));
 	memset(bios_previouskeyboard, 0, sizeof(bios_previouskeyboard));
@@ -106,7 +108,12 @@ void AtariBios_InitOSKeymap(_THIS)
 	keymap[SCANCODE_LEFTALT] = SDLK_LALT;
 	keymap[SCANCODE_CAPSLOCK] = SDLK_CAPSLOCK;
 
-	SDL_AtariXbios_InstallVectors(ATARI_XBIOS_MOUSEEVENTS|ATARI_XBIOS_JOYSTICKEVENTS);
+	vectors_mask = ATARI_XBIOS_MOUSEEVENTS|ATARI_XBIOS_JOYSTICKEVENTS;
+	if (Getcookie(C_MiNT, &dummy)==C_FOUND) {
+		vectors_mask = 0;
+	}
+
+	SDL_AtariXbios_InstallVectors(vectors_mask);
 }
 
 void AtariBios_PumpEvents(_THIS)

src/video/ataricommon/SDL_gemdosevents.c

@@ -35,6 +35,7 @@ static char rcsid =
 
 /* Mint includes */
 #include <mint/osbind.h>
+#include <mint/cookie.h>
 
 #include "SDL.h"
 #include "SDL_sysevents.h"
@@ -76,7 +77,8 @@ static void UpdateSpecialKeys(int special_keys_state);
 
 void AtariGemdos_InitOSKeymap(_THIS)
 {
-	int i;
+	int i, vectors_mask;
+	unsigned long dummy;
 
 	memset(gemdos_currentkeyboard, 0, sizeof(gemdos_currentkeyboard));
 	memset(gemdos_previouskeyboard, 0, sizeof(gemdos_previouskeyboard));
@@ -111,7 +113,12 @@ void AtariGemdos_InitOSKeymap(_THIS)
 	keymap[SCANCODE_LEFTALT] = SDLK_LALT;
 	keymap[SCANCODE_CAPSLOCK] = SDLK_CAPSLOCK;
 
-	SDL_AtariXbios_InstallVectors(ATARI_XBIOS_MOUSEEVENTS|ATARI_XBIOS_JOYSTICKEVENTS);
+	vectors_mask = ATARI_XBIOS_MOUSEEVENTS|ATARI_XBIOS_JOYSTICKEVENTS;
+	if (Getcookie(C_MiNT, &dummy)==C_FOUND) {
+		vectors_mask = 0;
+	}
+
+	SDL_AtariXbios_InstallVectors(vectors_mask);
 }
 
 void AtariGemdos_PumpEvents(_THIS)

src/video/ataricommon/SDL_xbiosevents.c

@@ -63,6 +63,11 @@ void SDL_AtariXbios_InstallVectors(int vectors_mask)
 		SDL_AtariXbios_joystick =
 		atari_prevmouseb = 0;
 
+	if (vectors_mask==0) {
+		SDL_AtariXbios_enabled=0;
+		return;
+	}
+
 	/* Read IKBD vectors base */
 	kbdvecs=Kbdvbase();
 
@@ -86,6 +91,10 @@ void SDL_AtariXbios_RestoreVectors(void)
 {
 	void *oldpile;
 
+	if (SDL_AtariXbios_enabled==0) {
+		return;
+	}
+
 	/* Read IKBD vectors base */
 	kbdvecs=Kbdvbase();
 
@@ -115,6 +124,10 @@ static int atari_GetButton(int button)
 
 void SDL_AtariXbios_PostMouseEvents(_THIS)
 {
+	if (SDL_AtariXbios_enabled==0) {
+		return;
+	}
+
 	/* Mouse motion ? */
 	if (SDL_AtariXbios_mousex || SDL_AtariXbios_mousey) {
 		SDL_PrivateMouseMotion(0, 1, SDL_AtariXbios_mousex, SDL_AtariXbios_mousey);

src/video/gem/SDL_gemevents.c

@@ -384,8 +384,10 @@ static void do_mouse(_THIS, short mx, short my, short mb, short ks)
 	/* Mouse motion ? */
 	if ((prevmousex!=mx) || (prevmousey!=my)) {
 		if (GEM_mouse_relative) {
-			SDL_PrivateMouseMotion(0, 1, SDL_AtariXbios_mousex, SDL_AtariXbios_mousey);
-			SDL_AtariXbios_mousex = SDL_AtariXbios_mousey = 0;
+			if ((SDL_AtariXbios_mousex!=0) || (SDL_AtariXbios_mousey!=0)) {
+				SDL_PrivateMouseMotion(0, 1, SDL_AtariXbios_mousex, SDL_AtariXbios_mousey);
+				SDL_AtariXbios_mousex = SDL_AtariXbios_mousey = 0;
+			}
 		} else {
 			int posx, posy;
 

src/video/gem/SDL_gemvideo.c

@@ -137,6 +137,8 @@ static void GEM_DeleteDevice(SDL_VideoDevice *device)
 static SDL_VideoDevice *GEM_CreateDevice(int devindex)
 {
 	SDL_VideoDevice *device;
+	int vectors_mask;
+	unsigned long dummy;
 
 	/* Initialize all variables that we clean on shutdown */
 	device = (SDL_VideoDevice *)malloc(sizeof(SDL_VideoDevice));
@@ -198,7 +200,12 @@ static SDL_VideoDevice *GEM_CreateDevice(int devindex)
 #endif
 
 	/* Joystick + Mouse relative motion */
-	SDL_AtariXbios_InstallVectors(ATARI_XBIOS_MOUSEEVENTS|ATARI_XBIOS_JOYSTICKEVENTS);
+	vectors_mask = ATARI_XBIOS_MOUSEEVENTS|ATARI_XBIOS_JOYSTICKEVENTS;
+	if (Getcookie(C_MiNT, &dummy)==C_FOUND) {
+		vectors_mask = 0;
+	}
+
+	SDL_AtariXbios_InstallVectors(vectors_mask);
 
 	device->free = GEM_DeleteDevice;