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static BOOL calc_save(int x, int y)
{
mouse_swap_w = mouse_w;
mouse_swap_x = x - mouse_pointx;
if(mouse_swap_x < 0)
{
mouse_swap_w += mouse_swap_x;
mouse_swap_x = 0;
}
if(mouse_swap_x + mouse_swap_w > hda->width)
{
mouse_swap_w = hda->width - mouse_swap_x;
}
mouse_swap_h = mouse_h;
mouse_swap_y = y - mouse_pointy;
if(mouse_swap_y < 0)
{
mouse_swap_h += mouse_swap_y;
mouse_swap_y = 0;
}
if(mouse_swap_y + mouse_swap_h > hda->height)
{
mouse_swap_h = hda->height - mouse_swap_y;
}
if(mouse_swap_w <= 0 || mouse_swap_h <= 0)
{
mouse_swap_valid = FALSE;
return FALSE;
}
if((DWORD)(mouse_swap_w * mouse_swap_h * mouse_ps) > mouse_mem_size)
{
mouse_swap_valid = FALSE;
return FALSE;
}
return TRUE;
}
#define DEF_SAVE(_bpp, _type) \
static void save ## _bpp(int mx, int my){ \
int x, y; \
_type *screen; \
_type *buf = mouse_swap_data; \
BYTE *screen_pos = ((BYTE*)hda->vram_pm32) + hda->surface; \
if(!calc_save(mx, my)){ return; } \
screen = (_type*)(screen_pos + hda->pitch * mouse_swap_y); \
for(y = 0; y < mouse_swap_h; y++) { \
for(x = 0; x < mouse_swap_w; x++) { \
*buf = screen[mouse_swap_x + x]; \
buf++; \
} \
screen = (_type*)((BYTE*)screen+hda->pitch); \
} \
mouse_swap_valid = TRUE; }
DEF_SAVE( 8, BYTE)
DEF_SAVE(16, WORD)
DEF_SAVE(32, DWORD)
static void save24(int mx, int my)
{
int x, y;
BYTE *screen;
BYTE *buf = mouse_swap_data;
BYTE *screen_pos = ((BYTE*)hda->vram_pm32) + hda->surface;
if(!calc_save(mx, my)){ return; }
screen = screen_pos + hda->pitch * mouse_swap_y;
for(y = 0; y < mouse_swap_h; y++)
{
for(x = 0; x < mouse_swap_w; x++)
{
*(buf++) = screen[(mouse_swap_x + x)*3 ];
*(buf++) = screen[(mouse_swap_x + x)*3 + 1];
*(buf++) = screen[(mouse_swap_x + x)*3 + 2];
}
screen += hda->pitch;
}
mouse_swap_valid = TRUE;
}
#define DEF_RESTORE(_bpp, _type) \
static void restore ## _bpp () { \
int x, y; \
_type *screen; \
_type *buf = mouse_swap_data; \
BYTE *screen_pos = ((BYTE*)hda->vram_pm32) + hda->surface; \
if(!mouse_swap_valid){ return; } \
screen = (_type*)(screen_pos + hda->pitch * mouse_swap_y); \
for(y = 0; y < mouse_swap_h; y++) { \
for(x = 0; x < mouse_swap_w; x++) { \
screen[mouse_swap_x + x] = *buf; buf++; \
} \
screen = (_type*)((BYTE*)screen+hda->pitch); \
} \
mouse_swap_valid = FALSE; }
DEF_RESTORE( 8, BYTE)
DEF_RESTORE(16, WORD)
DEF_RESTORE(32, DWORD)
void restore24()
{
int x, y;
BYTE *screen;
BYTE *buf = mouse_swap_data;
BYTE *screen_pos = ((BYTE*)hda->vram_pm32) + hda->surface;
if(!mouse_swap_valid){ return; }
screen = screen_pos + hda->pitch * mouse_swap_y;
for(y = 0; y < mouse_swap_h; y++)
{
for(x = 0; x < mouse_swap_w; x++)
{
screen[(mouse_swap_x + x)*3 ] = *(buf++);
screen[(mouse_swap_x + x)*3 + 1] = *(buf++);
screen[(mouse_swap_x + x)*3 + 2] = *(buf++);
}
screen += hda->pitch;
}
mouse_swap_valid = FALSE;
}
#define DEF_BLIT(_bpp, _type) \
static void blit ## _bpp (int mx, int my) { \
int x, y; \
_type *screen_line; \
_type *and_line; \
_type *xor_line; \
int real_x = mx - mouse_pointx; \
int real_y = my - mouse_pointy; \
int real_xx, real_yy; \
BYTE *screen_pos = ((BYTE*)hda->vram_pm32) + hda->surface; \
for(y = 0; y < mouse_h; y++) { \
real_yy = real_y+y; \
if(real_yy >= 0 && real_yy < hda->height) { \
screen_line = (_type*)(screen_pos + hda->pitch * (real_yy)); \
and_line = ((_type*)mouse_andmask_data + mouse_w * y); \
xor_line = ((_type*)mouse_xormask_data + mouse_w * y); \
for(x = 0; x < mouse_w; x++) { \
real_xx = real_x+x; \
if(real_xx >= 0 && real_xx < hda->width) { \
screen_line[real_xx] &= and_line[x]; \
screen_line[real_xx] ^= xor_line[x]; \
} } } } }
DEF_BLIT(8, BYTE)
DEF_BLIT(16, WORD)
DEF_BLIT(32, DWORD)
static void blit24(int mx, int my)
{
int x, y;
BYTE *screen_line;
BYTE *and_line;
BYTE *xor_line;
int real_x = mx - mouse_pointx;
int real_y = my - mouse_pointy;
int real_xx, real_yy;
int real_xx3, x3;
BYTE *screen_pos = ((BYTE*)hda->vram_pm32) + hda->surface;
for(y = 0; y < mouse_h; y++)
{
real_yy = real_y+y;
if(real_yy >= 0 && real_yy < hda->height)
{
screen_line = screen_pos + hda->pitch * real_yy;
and_line = ((BYTE*)mouse_andmask_data) + mouse_w * y * 3;
xor_line = ((BYTE*)mouse_xormask_data) + mouse_w * y * 3;
for(x = 0; x < mouse_w; x++)
{
real_xx = real_x+x;
if(real_xx >= 0 && real_xx < hda->width)
{
real_xx3 = real_xx*3;
x3 = x*3;
screen_line[real_xx3 ] &= and_line[x3 ]; screen_line[real_xx3 ] ^= xor_line[x3 ];
screen_line[real_xx3+1] &= and_line[x3+1]; screen_line[real_xx3+1] ^= xor_line[x3+1];
screen_line[real_xx3+2] &= and_line[x3+2]; screen_line[real_xx3+2] ^= xor_line[x3+2];
}
}
}
}
}
#define EXPAND_BIT(_dsttype, _bit) (~(((_dsttype)(_bit))-1))
#define DEF_CONVMASK(_bpp, _type) \
static void convmask ## _bpp(CURSORSHAPE *lpCursor, DWORD cbWidth, void *src, void *dst) { \
_type *ptr = dst; \
int x, y, xb, x8; \
BYTE pix8; \
for(y = 0; y < lpCursor->cy; y++) { \
for(x = 0; x < cbWidth; x++) { \
pix8 = ((BYTE *)src)[cbWidth*y + x]; \
x8 = x*8; \
for(xb = 7; xb >= 0 && x8 < lpCursor->cx; xb--,x8++) { \
*(ptr++) = EXPAND_BIT(_type, ((pix8 >> xb) & 0x1)); \
} } } }
DEF_CONVMASK( 8, BYTE)
DEF_CONVMASK(16, WORD)
DEF_CONVMASK(32, DWORD)
static void convmask24(CURSORSHAPE *lpCursor, DWORD cbWidth, void *src, void *dst)
{
BYTE *ptr = dst;
int x, y, xb, x8;
BYTE pix8;
BYTE mask;
for(y = 0; y < lpCursor->cy; y++)
{
for(x = 0; x < cbWidth; x++)
{
pix8 = ((BYTE *)src)[cbWidth*y + x];
x8 = x*8;
for(xb = 7; xb >= 0 && x8 < lpCursor->cx; xb--,x8++)
{
mask = EXPAND_BIT(BYTE, ((pix8 >> xb) & 0x1));
*(ptr++) = mask;
*(ptr++) = mask;
*(ptr++) = mask;
}
}
}
}
static void draw_save(int mx, int my)
{
switch(mouse_ps)
{
case 1: save8(mx, my); return;
case 2: save16(mx, my); return;
case 3: save24(mx, my); return;
case 4: save32(mx, my); return;
}
}
static void draw_restore()
{
switch(mouse_ps)
{
case 1: restore8(); return;
case 2: restore16(); return;
case 3: restore24(); return;
case 4: restore32(); return;
}
}
static void draw_blit(int mx, int my)
{
switch(mouse_ps)
{
case 1: blit8(mx, my); return;
case 2: blit16(mx, my); return;
case 3: blit24(mx, my); return;
case 4: blit32(mx, my); return;
}
}
static void convmask(CURSORSHAPE *lpCursor, DWORD cbWidth, void *src, void *dst)
{
switch(mouse_ps)
{
case 1: convmask8(lpCursor, cbWidth, src, dst); return;
case 2: convmask16(lpCursor, cbWidth, src, dst); return;
case 3: convmask24(lpCursor, cbWidth, src, dst); return;
case 4: convmask32(lpCursor, cbWidth, src, dst); return;
}
}
static BOOL cursor_is_empty()
{
DWORD s = mouse_w * mouse_h * mouse_ps;
BYTE *and_mask = (BYTE *)mouse_andmask_data;
BYTE *xor_mask = (BYTE *)mouse_xormask_data;
while(s--)
{
if((*and_mask) != 0xFF || (*xor_mask) != 0x00)
{
return FALSE;
}
and_mask++;
xor_mask++;
}
return TRUE;
}
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