static void putsprite_blend_flip_(
unsigned short *dest, int x, int xmin, int xmax, int *linetab, unsigned short *palette, int h, int screenwidth,
unsigned short (*blendfp)(unsigned short, unsigned short)
)
{
for(; h > 0; h--, dest += screenwidth)
{
register int lx = x; // destination x position
unsigned char *data = ((unsigned char *)linetab) + (*linetab);
linetab++;
while(lx > xmin)
{
register int count = *data++; // clearcount - number of transparent pixels
if(count == 0xFF)
{
break; // end-of-line indicator
}
lx -= count;
if(lx <= xmin)
{
break;
}
count = *data++; // viscount - number of visible pixels following
if(!count)
{
continue;
}
if((lx - count) >= xmax)
{
lx -= count;
data += count;
continue;
}
if(lx > xmax)
{
int diff = (lx - xmax);
count -= diff;
data += diff;
lx = xmax;
}
if((lx - count) < xmin)
{
count = lx - xmin;
}
for(; count > 0; count--)
{
--lx;
dest[lx] = blendfp(palette[*data++], dest[lx]);
}
}
}
}
//src high dest low
static void putsprite_blend_(
unsigned short *dest, int x, int xmin, int xmax, int *linetab, unsigned short *palette, int h, int screenwidth,
unsigned short (*blendfp)(unsigned short, unsigned short)
)
{
for(; h > 0; h--, dest += screenwidth)
{
register int lx = x;
unsigned char *data = ((unsigned char *)linetab) + (*linetab);
linetab++;
while(lx < xmax)
{
register int count = *data++;
if(count == 0xFF)
{
break;
}
lx += count;
if(lx >= xmax)
{
break;
}
count = *data++;
if(!count)
{
continue;
}
if((lx + count) <= xmin)
{
lx += count;
data += count;
continue;
}
if(lx < xmin)
{
int diff = lx - xmin;
count += diff;
data -= diff;
lx = xmin;
}
if((lx + count) > xmax)
{
count = xmax - lx;
}
for(; count > 0; count--, lx++)
{
dest[lx] = blendfp(palette[*data++], dest[lx]);
}
}
}
}
static void putsprite_blend_flip_(unsigned *dest, int x, int *linetab, unsigned *palette, int h, int screenwidth,
unsigned (*blendfp) (unsigned, unsigned)
) {
for(; h > 0; h--, dest += screenwidth) {
register int lx = x;
unsigned char *data = ((unsigned char *) linetab) + (*linetab);
linetab++;
while(lx > 0) {
register int count = *data++;
if(count == 0xFF)
break;
lx -= count;
if(lx <= 0)
break;
count = *data++;
if(!count)
continue;
if((lx - count) >= screenwidth) {
lx -= count;
data += count;
continue;
}
if(lx > screenwidth) {
int diff = (lx - screenwidth);
count -= diff;
data += diff;
lx = screenwidth;
}
if((lx - count) < 0) {
count = lx;
}
for(; count > 0; count--) {
--lx;
dest[lx] = blendfp(palette[*data++], dest[lx]);
}
}
}
}
//src high dest low
static void putsprite_blend_(unsigned *dest, int x, int *linetab, unsigned *palette, int h, int screenwidth,
unsigned (*blendfp) (unsigned, unsigned)
) {
for(; h > 0; h--, dest += screenwidth) {
register int lx = x;
unsigned char *data = ((unsigned char *) linetab) + (*linetab);
linetab++;
while(lx < screenwidth) {
register int count = *data++;
if(count == 0xFF)
break;
lx += count;
if(lx >= screenwidth)
break;
count = *data++;
if(!count)
continue;
if((lx + count) <= 0) {
lx += count;
data += count;
continue;
}
if(lx < 0) {
count += lx;
data -= lx;
lx = 0;
}
if((lx + count) > screenwidth) {
count = screenwidth - lx;
}
for(; count > 0; count--, lx++) {
dest[lx] = blendfp(palette[*data++], dest[lx]);
}
}
}
}
