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path: root/src/glut/dos/PC_HW/pc_mouse.c
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Diffstat (limited to 'src/glut/dos/PC_HW/pc_mouse.c')
-rw-r--r--src/glut/dos/PC_HW/pc_mouse.c144
1 files changed, 89 insertions, 55 deletions
diff --git a/src/glut/dos/PC_HW/pc_mouse.c b/src/glut/dos/PC_HW/pc_mouse.c
index 3ed7650906..1740bfbac4 100644
--- a/src/glut/dos/PC_HW/pc_mouse.c
+++ b/src/glut/dos/PC_HW/pc_mouse.c
@@ -8,11 +8,15 @@
#include <dpmi.h>
+#include <sys/exceptn.h>
+#include <sys/segments.h>
#include "pc_hw.h"
+#define PC_CUTE_WHEEL 1 /* CuteMouse WheelAPI */
+
#define MOUSE_STACK_SIZE 16384
#define CLEAR_MICKEYS() \
@@ -21,20 +25,23 @@
ox = oy = 0; \
} while (0)
-extern void mouse_wrapper (void);
-extern void mouse_wrapper_end (void);
+extern void mouse_wrap (void);
+extern int mouse_wrap_end[];
static MFUNC mouse_func;
-static void *mouse_stack;
static long mouse_callback;
static __dpmi_regs mouse_regs;
-static volatile int pc_mouse_x, pc_mouse_y, pc_mouse_b;
+static volatile struct {
+ volatile int x, y, z, b;
+} pc_mouse;
static int minx = 0;
static int maxx = 319;
static int miny = 0;
static int maxy = 199;
+static int minz = 0;
+static int maxz = 255;
static int sx = 2;
static int sy = 2;
@@ -43,27 +50,34 @@ static int emulat3 = FALSE;
static int ox, oy;
+
static void mouse (__dpmi_regs *r)
{
int nx = (signed short)r->x.si / sx;
int ny = (signed short)r->x.di / sy;
int dx = nx - ox;
int dy = ny - oy;
+#if PC_CUTE_WHEEL
+ int dz = (signed char)r->h.bh;
+#endif
ox = nx;
oy = ny;
- pc_mouse_b = r->x.bx;
- pc_mouse_x = MID(minx, pc_mouse_x + dx, maxx);
- pc_mouse_y = MID(miny, pc_mouse_y + dy, maxy);
+ pc_mouse.b = r->h.bl;
+ pc_mouse.x = MID(minx, pc_mouse.x + dx, maxx);
+ pc_mouse.y = MID(miny, pc_mouse.y + dy, maxy);
+#if PC_CUTE_WHEEL
+ pc_mouse.z = MID(minz, pc_mouse.z + dz, maxz);
+#endif
if (emulat3) {
- if ((pc_mouse_b&3)==3) {
- pc_mouse_b = 4;
+ if ((pc_mouse.b&3)==3) {
+ pc_mouse.b = 4;
}
}
if (mouse_func) {
- mouse_func(pc_mouse_x, pc_mouse_y, pc_mouse_b);
+ mouse_func(pc_mouse.x, pc_mouse.y, pc_mouse.z, pc_mouse.b);
}
} ENDOFUNC(mouse)
@@ -83,7 +97,7 @@ void pc_remove_mouse (void)
mouse_callback = 0;
- free((void *)((unsigned long)mouse_stack-MOUSE_STACK_SIZE));
+ free((void *)(mouse_wrap_end[0] - MOUSE_STACK_SIZE));
}
}
@@ -109,26 +123,26 @@ int pc_install_mouse (void)
/* lock wrapper */
LOCKDATA(mouse_func);
- LOCKDATA(mouse_stack);
LOCKDATA(mouse_callback);
LOCKDATA(mouse_regs);
- LOCKDATA(pc_mouse_x);
- LOCKDATA(pc_mouse_y);
- LOCKDATA(pc_mouse_b);
+ LOCKDATA(pc_mouse);
LOCKDATA(minx);
LOCKDATA(maxx);
LOCKDATA(miny);
LOCKDATA(maxy);
+ LOCKDATA(minz);
+ LOCKDATA(maxz);
LOCKDATA(sx);
LOCKDATA(sy);
LOCKDATA(emulat3);
LOCKDATA(ox);
LOCKDATA(oy);
LOCKFUNC(mouse);
- LOCKFUNC(mouse_wrapper);
+ LOCKFUNC(mouse_wrap);
+ mouse_wrap_end[1] = __djgpp_ds_alias;
/* grab a locked stack */
- if ((mouse_stack=pc_malloc(MOUSE_STACK_SIZE))==NULL) {
+ if ((mouse_wrap_end[0] = (int)pc_malloc(MOUSE_STACK_SIZE)) == NULL) {
return 0;
}
@@ -150,19 +164,23 @@ int pc_install_mouse (void)
movl %%ecx, %0 \n\
0: \n\
":"=g"(mouse_callback)
- :"S" (mouse_wrapper), "D"(&mouse_regs)
+ :"S" (mouse_wrap), "D"(&mouse_regs)
:"%eax", "%ecx", "%edx");
if (!mouse_callback) {
- free(mouse_stack);
+ free((void *)mouse_wrap_end[0]);
return 0;
}
/* adjust stack */
- mouse_stack = (void *)((unsigned long)mouse_stack + MOUSE_STACK_SIZE);
+ mouse_wrap_end[0] += MOUSE_STACK_SIZE;
/* install the handler */
mouse_regs.x.ax = 0x000c;
- mouse_regs.x.cx = 0x007f;
+#if PC_CUTE_WHEEL
+ mouse_regs.x.cx = 0x7f | 0x80;
+#else
+ mouse_regs.x.cx = 0x7f;
+#endif
mouse_regs.x.dx = mouse_callback&0xffff;
mouse_regs.x.es = mouse_callback>>16;
__dpmi_int(0x33, &mouse_regs);
@@ -205,41 +223,57 @@ void pc_mouse_speed (int xspeed, int yspeed)
ENABLE();
}
-int pc_query_mouse (int *x, int *y)
+int pc_query_mouse (int *x, int *y, int *z)
{
- *x = pc_mouse_x;
- *y = pc_mouse_y;
- return pc_mouse_b;
+ *x = pc_mouse.x;
+ *y = pc_mouse.y;
+ *z = pc_mouse.z;
+ return pc_mouse.b;
}
+void pc_warp_mouse (int x, int y)
+{
+ CLEAR_MICKEYS();
+
+ pc_mouse.x = MID(minx, x, maxx);
+ pc_mouse.y = MID(miny, y, maxy);
+
+ if (mouse_func) {
+ mouse_func(pc_mouse.x, pc_mouse.y, pc_mouse.z, pc_mouse.b);
+ }
+}
+
+/* Hack alert:
+ * `mouse_wrap_end' actually holds the
+ * address of stack in a safe data selector.
+ */
__asm("\n\
- .text \n\
- .p2align 5,,31 \n\
- .global _mouse_wrapper \n\
-_mouse_wrapper: \n\
- cld \n\
- lodsl \n\
- movl %eax, %es:42(%edi) \n\
- addw $4, %es:46(%edi) \n\
- pushl %es \n\
- movl %ss, %ebx \n\
- movl %esp, %esi \n\
- movl %cs:___djgpp_ds_alias, %ss \n\
- movl %cs:_mouse_stack, %esp \n\
- pushl %ss \n\
- pushl %ss \n\
- popl %es \n\
- popl %ds \n\
- movl ___djgpp_dos_sel, %fs \n\
- pushl %fs \n\
- popl %gs \n\
- pushl %edi \n\
- call _mouse \n\
- popl %edi \n\
- movl %ebx, %ss \n\
- movl %esi, %esp \n\
- popl %es \n\
- iret \n\
- .balign 4 \n\
- .global _mouse_wrapper_end \n\
-_mouse_wrapper_end:");
+ .text \n\
+ .p2align 5,,31 \n\
+ .global _mouse_wrap \n\
+_mouse_wrap: \n\
+ cld \n\
+ lodsl \n\
+ movl %eax, %es:42(%edi) \n\
+ addw $4, %es:46(%edi) \n\
+ pushl %es \n\
+ movl %ss, %ebx \n\
+ movl %esp, %esi \n\
+ lss %cs:_mouse_wrap_end, %esp\n\
+ pushl %ss \n\
+ pushl %ss \n\
+ popl %es \n\
+ popl %ds \n\
+ movl ___djgpp_dos_sel, %fs \n\
+ pushl %fs \n\
+ popl %gs \n\
+ pushl %edi \n\
+ call _mouse \n\
+ popl %edi \n\
+ movl %ebx, %ss \n\
+ movl %esi, %esp \n\
+ popl %es \n\
+ iret \n\
+ .balign 4 \n\
+ .global _mouse_wrap_end \n\
+_mouse_wrap_end:.long 0, 0");
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-23 20:05:19 +0000