Pecus/libretro-atari800
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Add support for four controllers.

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This commit is contained in:
raphkoster
2019-06-23 23:03:59 -07:00
parent af0ba7263b
commit 609378be70
3 changed files with 104 additions and 41 deletions
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libretro/platform.c
+59 -12
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@@ -49,7 +49,9 @@ extern int UI_is_active;
static int swap_joysticks = FALSE;
int PLATFORM_kbd_joy_0_enabled = TRUE; /* enabled by default, doesn't hurt */
int PLATFORM_kbd_joy_1_enabled = TRUE;//FALSE; /* disabled, would steal normal keys */
extern unsigned char MXjoy[2]; // joy
int PLATFORM_kbd_joy_2_enabled = TRUE;//FALSE; /* disabled, would steal normal keys */
int PLATFORM_kbd_joy_3_enabled = TRUE;//FALSE; /* disabled, would steal normal keys */
extern unsigned char MXjoy[4]; // joy
extern int mbt[16];
extern int retro_sound_finalized;
@@ -655,10 +657,10 @@ void PLATFORM_PaletteUpdate(void)
retro_PaletteUpdate();
}
static void get_platform_PORT(unsigned char *s0, unsigned char *s1)
static void get_platform_PORT(unsigned char *s0, unsigned char *s1, unsigned char *s2, unsigned char *s3)
{
int stick0, stick1;
stick0 = stick1 = INPUT_STICK_CENTRE;
int stick0, stick1, stick2, stick3;
stick0 = stick1 = stick2 = stick3 = INPUT_STICK_CENTRE;
if (PLATFORM_kbd_joy_0_enabled) {
if (MXjoy[0]&0x04)
@@ -680,24 +682,47 @@ static void get_platform_PORT(unsigned char *s0, unsigned char *s1)
stick1 &= INPUT_STICK_FORWARD;
if (MXjoy[1]&0x02)
stick1 &= INPUT_STICK_BACK;
}
if (PLATFORM_kbd_joy_2_enabled) {
if (MXjoy[2]&0x04)
stick2 &= INPUT_STICK_LEFT;
if (MXjoy[2]&0x08)
stick2 &= INPUT_STICK_RIGHT;
if (MXjoy[2]&0x01)
stick2 &= INPUT_STICK_FORWARD;
if (MXjoy[2]&0x02)
stick2 &= INPUT_STICK_BACK;
}
if (PLATFORM_kbd_joy_3_enabled) {
if (MXjoy[3]&0x04)
stick3 &= INPUT_STICK_LEFT;
if (MXjoy[3]&0x08)
stick3 &= INPUT_STICK_RIGHT;
if (MXjoy[3]&0x01)
stick3 &= INPUT_STICK_FORWARD;
if (MXjoy[3]&0x02)
stick3 &= INPUT_STICK_BACK;
}
if (swap_joysticks) {
*s1 = stick0;
*s0 = stick1;
*s2 = stick2;
*s3 = stick3;
}
else {
*s0 = stick0;
*s1 = stick1;
*s2 = stick2;
*s3 = stick3;
}
}
static void get_platform_TRIG(unsigned char *t0, unsigned char *t1)
static void get_platform_TRIG(unsigned char *t0, unsigned char *t1, unsigned char *t2, unsigned char *t3)
{
int trig0, trig1;
trig0 = trig1 = 1;
int trig0, trig1, trig2, trig3;
trig0 = trig1 = trig2 = trig3 = 1;
if (PLATFORM_kbd_joy_0_enabled) {
trig0 = MXjoy[0]&0x80?0:1;
@@ -707,13 +732,25 @@ static void get_platform_TRIG(unsigned char *t0, unsigned char *t1)
trig1 = MXjoy[1]&0x80?0:1;
}
if (PLATFORM_kbd_joy_2_enabled) {
trig2 = MXjoy[2]&0x80?0:1;
}
if (PLATFORM_kbd_joy_3_enabled) {
trig3 = MXjoy[3]&0x80?0:1;
}
if (swap_joysticks) {
*t1 = trig0;
*t0 = trig1;
*t2 = trig2;
*t3 = trig3;
}
else {
*t0 = trig0;
*t1 = trig1;
*t2 = trig2;
*t3 = trig3;
}
}
@@ -721,25 +758,35 @@ static void get_platform_TRIG(unsigned char *t0, unsigned char *t1)
int PLATFORM_PORT(int num)
{
if (num == 0) {
UBYTE a, b;
get_platform_PORT(&a, &b);
UBYTE a, b, c, d;
get_platform_PORT(&a, &b, &c, &d);
return (b << 4) | (a & 0x0f);
}
if (num == 1) {
UBYTE a, b, c, d;
get_platform_PORT(&a, &b, &c, &d);
return (d << 4) | (c & 0x0f);
}
return 0xff;
}
int PLATFORM_TRIG(int num)
{
UBYTE a, b;
get_platform_TRIG(&a, &b);
UBYTE a, b, c, d;
get_platform_TRIG(&a, &b, &c, &d);
switch (num) {
case 0:
return a;
case 1:
return b;
case 2:
return c;
case 3:
return d;
default:
break;
}