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Mouse optimizations and moved global vars to n64_periphs.

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This commit is contained in:
luigiblood 2015-05-02 15:25:11 +02:00
parent e115dff18a
commit 7aa17da424
2 changed files with 30 additions and 21 deletions
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4
src/mame/includes/n64.h
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@ -123,6 +123,10 @@ public:
bool disk_present;
bool cart_present;
// Mouse X2/Y2 for delta position
int mouse_x2[4];
int mouse_y2[4];
void poll_reset_button(bool button);
UINT32 dp_clock;

47
src/mame/machine/n64.c
View File

@ -15,9 +15,6 @@ UINT32 *rsp_dmem;
// device type definition
const device_type N64PERIPH = &device_creator<n64_periphs>;
int mouse_dx = 0, mouse_dy = 0, mouse_x2 = 0, mouse_y2 = 0, mouse_cntx = 0, mouse_cnty = 0;
@ -273,6 +270,13 @@ void n64_periphs::device_reset()
pif_ram[0x27] = 0x3f;
cic_type=6;
}
// Mouse X2/Y2 for delta
for (int i = 0; i < 4; i++)
{
mouse_x2[i] = 0;
mouse_y2[i] = 0;
}
}
// Memory Interface (MI)
@ -1799,52 +1803,53 @@ int n64_periphs::pif_channel_handle_command(int channel, int slength, UINT8 *sda
//x /= 4;
//y /= 4;
if (x != mouse_x2)
int mouse_dx = 0;
int mouse_dy = 0;
if (x != mouse_x2[channel])
{
mouse_dx = x - mouse_x2;
mouse_dx = x - mouse_x2[channel];
if (mouse_dx > 0x40)
mouse_dx = (0x80) - mouse_dx;
else if (mouse_dx < -0x40)
mouse_dx = -(0x80) - mouse_dx;
mouse_cntx = mouse_dx;
mouse_x2 = x;
mouse_x2[channel] = x;
}
if (y != mouse_y2)
if (y != mouse_y2[channel])
{
mouse_dy = y - mouse_y2;
mouse_dy = y - mouse_y2[channel];
if (mouse_dy > 0x40)
mouse_dy = (0x80) - mouse_dy;
else if (mouse_dy < -0x40)
mouse_dy = -(0x80) - mouse_dy;
mouse_cnty = mouse_dy;
mouse_y2 = y;
mouse_y2[channel] = y;
}
if (mouse_cntx)
if (mouse_dx)
{
if(mouse_cntx < 0)
mouse_cntx++;
if(mouse_dx < 0)
mouse_dx++;
else
mouse_cntx--;
mouse_dx--;
}
if (mouse_cnty)
if (mouse_dy)
{
if(mouse_cnty < 0)
mouse_cnty++;
if(mouse_dy < 0)
mouse_dy++;
else
mouse_cnty--;
mouse_dy--;
}
rdata[0] = (buttons >> 8) & 0xff;
rdata[1] = (buttons >> 0) & 0xff;
rdata[2] = (UINT8)(mouse_cntx);
rdata[3] = (UINT8)(mouse_cnty);
rdata[2] = (UINT8)(mouse_dx);
rdata[3] = (UINT8)(mouse_dy);
return 0;
}