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Add basic granularity support. (ripsaw, rc1)

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Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@3541
This commit is contained in:
Peter Veenstra 2010-01-31 15:02:41 +00:00
parent fd3cbd10da
commit 641160f569
1 changed files with 3 additions and 1 deletions
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4
src/ints/mouse.cpp
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@ -51,7 +51,7 @@ struct button_event {
#define QUEUE_SIZE 32
#define MOUSE_BUTTONS 3
#define MOUSE_IRQ 12
#define POS_X (Bit16s)(mouse.x)
#define POS_X ((Bit16s)(mouse.x) & mouse.granMask)
#define POS_Y (Bit16s)(mouse.y)
#define CURSORX 16
@ -126,6 +126,7 @@ static struct {
bool timer_in_progress;
bool in_UIR;
Bit8u mode;
Bit16s granMask;
} mouse;
bool Mouse_SetPS2State(bool use) {
@ -626,6 +627,7 @@ void Mouse_NewVideoMode(void) {
mouse.max_x = 639;
mouse.min_x = 0;
mouse.min_y = 0;
mouse.granMask = (mode == 0x0d || mode == 0x13) ? 0xfffe : 0xffff;
mouse.events = 0;
mouse.timer_in_progress = false;