1.1 --- a/src/mouse.c	Mon Apr 07 06:04:11 2014 +0300
     1.2 +++ b/src/mouse.c	Mon Apr 07 08:05:06 2014 +0300
     1.3 @@ -1,7 +1,5 @@
     1.4 -/* TODO: try NOT using the v8086 interrupts to avoid the overhead */
     1.5  #include "mouse.h"
     1.6  #include "inttypes.h"
     1.7 -#include "dpmi.h"
     1.8  
     1.9  #define INTR	0x33
    1.10  
    1.11 @@ -10,63 +8,86 @@
    1.12  #define HIDE	2
    1.13  #define READ	3
    1.14  #define WRITE	4
    1.15 +#define PIXRATE	0xf
    1.16  
    1.17  #define XLIM	7
    1.18  #define YLIM	8
    1.19  
    1.20  int have_mouse(void)
    1.21  {
    1.22 -	struct dpmi_real_regs regs;
    1.23 -	memset(&regs, 0, sizeof regs);
    1.24 -	regs.eax = QUERY;
    1.25 -	dpmi_real_int(INTR, &regs);
    1.26 -	return regs.eax & 0xffff;
    1.27 +	uint16_t res = 0;
    1.28 +	_asm {
    1.29 +		mov eax, QUERY
    1.30 +		int INTR
    1.31 +		mov res, ax
    1.32 +	}
    1.33 +	return res;
    1.34  }
    1.35  
    1.36  void show_mouse(int show)
    1.37  {
    1.38 -	struct dpmi_real_regs regs;
    1.39 -	memset(&regs, 0, sizeof regs);
    1.40 -	regs.eax = show ? SHOW : HIDE;
    1.41 -	dpmi_real_int(INTR, &regs);
    1.42 +	uint16_t cmd = show ? SHOW : HIDE;
    1.43 +	_asm {
    1.44 +		mov ax, cmd
    1.45 +		int INTR
    1.46 +	}
    1.47  }
    1.48  
    1.49  int read_mouse(int *xp, int *yp)
    1.50  {
    1.51 -	struct dpmi_real_regs regs;
    1.52 -	memset(&regs, 0, sizeof regs);
    1.53 +	uint16_t x, y, state;
    1.54 +	_asm {
    1.55 +		mov eax, READ
    1.56 +		int INTR
    1.57 +		mov state, bx
    1.58 +		mov x, cx
    1.59 +		mov y, dx
    1.60 +	}
    1.61  
    1.62 -	regs.eax = READ;
    1.63 -	dpmi_real_int(INTR, &regs);
    1.64 -
    1.65 -	if(xp) *xp = regs.ecx & 0xffff;
    1.66 -	if(yp) *yp = regs.edx & 0xffff;
    1.67 -	return regs.ebx & 0xffff;
    1.68 +	if(xp) *xp = x;
    1.69 +	if(yp) *yp = y;
    1.70 +	return state;
    1.71  }
    1.72  
    1.73  void set_mouse(int x, int y)
    1.74  {
    1.75 -	struct dpmi_real_regs regs;
    1.76 -	memset(&regs, 0, sizeof regs);
    1.77 -
    1.78 -	regs.eax = WRITE;
    1.79 -	regs.ecx = x;
    1.80 -	regs.edx = y;
    1.81 -	dpmi_real_int(INTR, &regs);
    1.82 +	_asm {
    1.83 +		mov eax, WRITE
    1.84 +		mov ecx, x
    1.85 +		mov edx, y
    1.86 +		int INTR
    1.87 +	}
    1.88  }
    1.89  
    1.90  void set_mouse_limits(int xmin, int ymin, int xmax, int ymax)
    1.91  {
    1.92 -	struct dpmi_real_regs regs;
    1.93 -	memset(&regs, 0, sizeof regs);
    1.94 -	regs.eax = XLIM;
    1.95 -	regs.ecx = xmin;
    1.96 -	regs.edx = xmax;
    1.97 -	dpmi_real_int(INTR, &regs);
    1.98 +	_asm {
    1.99 +		mov eax, XLIM
   1.100 +		mov ecx, xmin
   1.101 +		mov edx, xmax
   1.102 +		int INTR
   1.103 +		mov eax, YLIM
   1.104 +		mov ecx, ymin
   1.105 +		mov edx, ymax
   1.106 +		int INTR
   1.107 +	}
   1.108 +}
   1.109  
   1.110 -	memset(&regs, 0, sizeof regs);
   1.111 -	regs.eax = YLIM;
   1.112 -	regs.ecx = ymin;
   1.113 -	regs.edx = ymax;
   1.114 -	dpmi_real_int(INTR, &regs);
   1.115 +void set_mouse_rate(int xrate, int yrate)
   1.116 +{
   1.117 +	_asm {
   1.118 +		mov ax, PIXRATE
   1.119 +		mov ecx, xrate
   1.120 +		mov edx, yrate
   1.121 +		int INTR
   1.122 +	}
   1.123  }
   1.124 +
   1.125 +void set_mouse_mode(enum mouse_mode mode)
   1.126 +{
   1.127 +	if(mode == MOUSE_GFX) {
   1.128 +		set_mouse_rate(1, 1);
   1.129 +	} else {
   1.130 +		set_mouse_rate(8, 16);
   1.131 +	}
   1.132 +}