static void img_w3i1o4(byte *rgb, FZ_PSRC, FZ_PDST, FZ_PCTM)
{
byte rgb0 = rgb[0];
byte rgb1 = rgb[1];
byte rgb2 = rgb[2];
byte sa, ssa;
while (h--)
{
byte *dstp = dst0;
int u = u0;
int v = v0;
int w = w0;
while (w--)
{
sa = samplemask(src, srcw, srch, u, v);
ssa = 255 - sa;
dstp[0] = sa + fz_mul255(dstp[0], ssa);
dstp[1] = rgb0 + fz_mul255((short)dstp[1] - rgb0, ssa);
dstp[2] = rgb1 + fz_mul255((short)dstp[2] - rgb1, ssa);
dstp[3] = rgb2 + fz_mul255((short)dstp[3] - rgb2, ssa);
dstp += 4;
u += fa;
v += fb;
}
dst0 += dstw;
u0 += fc;
v0 += fd;
}
}
static void img_w4i1o4(byte *argb, FZ_LPSRC, FZ_PDST, FZ_PCTM)
{
byte alpha = argb[0];
byte r = argb[4];
byte g = argb[5];
byte b = argb[6];
byte cov;
byte ca;
while (h--)
{
byte *dstp = dst0;
int u = u0;
int v = v0;
int w = w0;
checktile(src, v>>16);
while (w--)
{
cov = samplemask(src, srcw, srch, u, v);
ca = fz_mul255(cov, alpha);
dstp[0] = ca + fz_mul255(dstp[0], 255 - ca);
dstp[1] = fz_mul255((short)r - dstp[1], ca) + dstp[1];
dstp[2] = fz_mul255((short)g - dstp[2], ca) + dstp[2];
dstp[3] = fz_mul255((short)b - dstp[3], ca) + dstp[3];
dstp += 4;
u += fa;
v += fb;
}
dst0 += dstw;
u0 += fc;
v0 += fd;
}
}
static void img_1o1(FZ_LPSRC, FZ_PDST, FZ_PCTM)
{
byte srca;
while (h--)
{
byte *dstp = dst0;
int u = u0;
int v = v0;
int w = w0;
checktile(src, v>>16);
while (w--)
{
srca = samplemask(src, srcw, srch, u, v);
dstp[0] = srca + fz_mul255(dstp[0], 255 - srca);
dstp ++;
u += fa;
v += fb;
}
dst0 += dstw;
u0 += fc;
v0 += fd;
}
}
static void img_1c1(FZ_PSRC, FZ_PDST, FZ_PCTM)
{
while (h--)
{
byte *dstp = dst0;
int u = u0;
int v = v0;
int w = w0;
while (w--)
{
dstp[0] = samplemask(src, srcw, srch, u, v);
dstp ++;
u += fa;
v += fb;
}
dst0 += dstw;
u0 += fc;
v0 += fd;
}
}
