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working on blazing paddles mouse support

This commit is contained in:
Jorj Bauer 2021-01-11 13:31:09 -05:00
parent 05529fd443
commit 1e1177f984
1 changed files with 10 additions and 0 deletions
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10
apple/mouse.cpp
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@ -99,6 +99,8 @@ void Mouse::writeSwitches(uint8_t s, uint8_t v)
uint8_t newStatus = g_vm->getMMU()->read(0x778+4) & ~0xC0;
if (curButton) { newStatus |= 0x80; };
if (lastButton) { newStatus |= 0x40; };
// lastButton = curButton; // FIXME untangle last handling here & in SERVEMOUSE
// if we add this here, it breaks GEOS.
g_vm->getMMU()->write(0x578+4, (xpos >> 8) & 0xFF); // high X
g_vm->getMMU()->write(0x478+4, xpos & 0xFF); // low X
@ -135,6 +137,14 @@ void Mouse::writeSwitches(uint8_t s, uint8_t v)
{
uint16_t lowval = (g_vm->getMMU()->read(0x578) << 8) | (g_vm->getMMU()->read(0x478));
uint16_t highval = (g_vm->getMMU()->read(0x5F8) << 8) | (g_vm->getMMU()->read(0x4F8));
// Fix for Blazing Paddles, which requests a negative lowval,
// but we're casting them as unsigned
if (lowval > highval) {
highval = (lowval + highval) & 0xFFFF;
lowval = 0;
}
if (v) {
g_mouse->setClamp(YCLAMP, lowval, highval);
} else {