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DOS: Mouse input partially works

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UnknownShadow200 2024-10-01 18:13:38 +10:00
parent 1f50e8e0ec
commit dd1812a4ed
1 changed files with 79 additions and 19 deletions
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98
src/Window_MSDOS.c
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@ -11,24 +11,91 @@
#include <sys/nearptr.h>
#include <pc.h>
#define INT_VGA 0x10
#define VGA_CMD_SETMODE 0x0000
#define VGA_MODE_320x200_8 0x13
#define INT_MOUSE 0x33
#define MOUSE_CMD_RESET 0x0000
#define MOUSE_CMD_SHOW 0x0001
#define MOUSE_CMD_HIDE 0x0002
#define MOUSE_CMD_POLL 0x0003
/*########################################################################################################################*
*------------------------------------------------------Mouse support------------------------------------------------------*
*#########################################################################################################################*/
static cc_bool mouseSupported;
static void Mouse_Init(void) {
__dpmi_regs regs;
regs.x.ax = MOUSE_CMD_RESET;
__dpmi_int(INT_MOUSE, &regs);
if (regs.x.ax == 0) { mouseSupported = false; return; }
mouseSupported = true;
Cursor_DoSetVisible(true);
}
static void Mouse_Poll(void) {
if (!mouseSupported) return;
__dpmi_regs regs;
regs.x.ax = MOUSE_CMD_POLL;
__dpmi_int(INT_MOUSE, &regs);
int b = regs.x.bx;
int x = regs.x.cx;
int y = regs.x.dx;
Input_SetNonRepeatable(CCMOUSE_L, b & 0x01);
Input_SetNonRepeatable(CCMOUSE_R, b & 0x02);
Input_SetNonRepeatable(CCMOUSE_M, b & 0x04);
Pointer_SetPosition(0, x, y);
}
static void Cursor_GetRawPos(int* x, int* y) {
*x = 0;
*y = 0;
if (!mouseSupported) return;
__dpmi_regs regs;
regs.x.ax = MOUSE_CMD_POLL;
__dpmi_int(INT_MOUSE, &regs);
*x = regs.x.cx;
*y = regs.x.dx;
}
void Cursor_SetPosition(int x, int y) {
if (!mouseSupported) return;
}
static void Cursor_DoSetVisible(cc_bool visible) {
if (!mouseSupported) return;
__dpmi_regs regs;
regs.x.ax = visible ? MOUSE_CMD_SHOW : MOUSE_CMD_HIDE;
__dpmi_int(INT_MOUSE, &regs);
}
/*########################################################################################################################*
*--------------------------------------------------Public implementation--------------------------------------------------*
*#########################################################################################################################*/
void Window_PreInit(void) {
}
void Window_PreInit(void) { }
void Window_Init(void) {
DisplayInfo.Width = 320;
DisplayInfo.Height = 200;
DisplayInfo.ScaleX = 1.0f;
DisplayInfo.ScaleY = 1.0f;
DisplayInfo.ScaleX = 0.5f;
DisplayInfo.ScaleY = 0.5f;
// Change VGA mode to 0x13 (320x200x8bpp)
__dpmi_regs regs;
Mem_Set(&regs, 0, sizeof regs);
regs.x.ax = 0x13;
__dpmi_int(0x10, &regs);
regs.x.ax = VGA_CMD_SETMODE | VGA_MODE_320x200_8;
__dpmi_int(INT_VGA, &regs);
// Change VGA colour palette (NOTE: only lower 6 bits are used)
// Fake a linear RGB palette
@ -38,6 +105,8 @@ void Window_Init(void) {
outportb(0x3c9, ((i >> 2) & 0x07) << 3);
outportb(0x3c9, ((i >> 5) & 0x07) << 3);
}
Mouse_Init();
}
void Window_Free(void) { }
@ -85,7 +154,9 @@ void Window_RequestClose(void) {
Event_RaiseVoid(&WindowEvents.Closing);
}
void Window_ProcessEvents(float delta) { }
void Window_ProcessEvents(float delta) {
Mouse_Poll();
}
void Gamepads_Init(void) {
@ -93,17 +164,6 @@ void Gamepads_Init(void) {
void Gamepads_Process(float delta) { }
static void Cursor_GetRawPos(int* x, int* y) {
*x = 0;
*y = 0;
}
void Cursor_SetPosition(int x, int y) {
}
static void Cursor_DoSetVisible(cc_bool visible) {
}
static void ShowDialogCore(const char* title, const char* msg) {
Platform_LogConst(title);
Platform_LogConst(msg);