int osd_is_joy_pressed(int joycode)
{
int joy_num,stick;
/* special case for mouse buttons */
switch (joycode)
{
case MOUSE_BUTTON(1):
return ExKey1 & GP2X_B; break;
case MOUSE_BUTTON(2):
return ExKey1 & GP2X_X; break;
case MOUSE_BUTTON(3):
return ExKey1 & GP2X_A; break;
}
joy_num = GET_JOYCODE_JOY(joycode);
/* do we have as many sticks? */
if (joy_num == 0 || joy_num > num_joysticks)
return 0;
joy_num--;
stick = GET_JOYCODE_STICK(joycode);
if (stick == 0)
{
/* buttons */
int button;
button = GET_JOYCODE_BUTTON(joycode);
if (button == 0 || button > 6)
return 0;
button--;
switch (joy_num)
{
case 0: return is_joy_button_pressed(button, ExKey1); break;
case 1: return is_joy_button_pressed(button, ExKey2); break;
case 2: return is_joy_button_pressed(button, ExKey3); break;
case 3: return is_joy_button_pressed(button, ExKey4); break;
default: break;
}
}
else
{
/* sticks */
int axis,dir;
if (stick > 1)
return 0;
stick--;
axis = GET_JOYCODE_AXIS(joycode);
dir = GET_JOYCODE_DIR(joycode);
if (axis == 0 || axis > 2)
return 0;
axis--;
switch (joy_num)
{
case 0: return is_joy_axis_pressed(axis, dir, ExKey1); break;
case 1: return is_joy_axis_pressed(axis, dir, ExKey2); break;
case 2: return is_joy_axis_pressed(axis, dir, ExKey3); break;
case 3: return is_joy_axis_pressed(axis, dir, ExKey4); break;
default: break;
}
}
return 0;
}
static int DIJoystick_is_joy_pressed(int joycode)
{
int joy_num;
int stick;
int axis;
int dir;
DIJOYSTATE dijs;
int value;
int dz = 60;
joy_num = GET_JOYCODE_JOY(joycode);
/* do we have as many sticks? */
if (joy_num == 0 || This.num_joysticks < joy_num)
return 0;
joy_num--;
if (This.joysticks[joy_num].use_joystick == FALSE)
return 0;
dijs = This.joysticks[joy_num].dijs;
stick = GET_JOYCODE_STICK(joycode);
if (stick == JOYCODE_STICK_BTN)
{
/* buttons */
int button;
button = GET_JOYCODE_BUTTON(joycode);
button--;
if (button >= This.joysticks[joy_num].num_buttons
|| GET_JOYCODE_DIR(joycode) != JOYCODE_DIR_BTN)
return 0;
return dijs.rgbButtons[button] != 0;
}
if (stick == JOYCODE_STICK_POV)
{
/* POV */
int pov_value;
int angle;
int axis_value;
int num_pov = GET_JOYCODE_BUTTON(joycode) / 4;
int code = GET_JOYCODE_BUTTON(joycode) % 4;
axis = code / 2;
dir = code % 2;
if (num_pov >= This.joysticks[joy_num].num_pov)
return 0;
pov_value = dijs.rgdwPOV[num_pov];
if (LOWORD(pov_value) == 0xffff)
return 0;
angle = (pov_value + 27000) % 36000;
angle = (36000 - angle) % 36000;
angle /= 100;
/* angle is now in degrees counterclockwise from x axis*/
if (axis == 1)
axis_value = 128 + (int)(127 * cos(2 * M_PI * angle / 360.0)); /* x */
else
axis_value = 128 + (int)(127 * sin(2 * M_PI * angle / 360.0)); /* y */
if (dir == 1)
return axis_value <= (128 - 128 * dz / 100);
else
return axis_value >= (128 + 128 * dz / 100);
}
/* sticks */
axis = GET_JOYCODE_AXIS(joycode);
dir = GET_JOYCODE_DIR(joycode);
if (axis == 0 || This.joysticks[joy_num].num_axes < axis)
return 0;
axis--;
value = *(int *)(((byte *)&dijs) + This.joysticks[joy_num].axes[axis].offset);
if (dir == JOYCODE_DIR_NEG)
return value <= (128 - 128 * dz / 100);
else
return value >= (128 + 128 * dz / 100);
}