void pdf_convcolor(fz_colorspace *ss, float *sv, fz_colorspace *ds, float *dv)
{
if (ss == pdf_devicegray)
{
if (ds == pdf_devicergb)
{
dv[0] = sv[0];
dv[1] = sv[0];
dv[2] = sv[0];
}
else if (ds == pdf_devicecmyk)
{
dv[0] = 0;
dv[1] = 0;
dv[2] = 0;
dv[3] = sv[0];
}
else
fz_stdconvcolor(ss, sv, ds, dv);
}
else if (ss == pdf_devicergb)
{
if (ds == pdf_devicegray)
{
dv[0] = sv[0] * 0.3 + sv[1] * 0.59 + sv[2] * 0.11;
}
else if (ds == pdf_devicecmyk)
{
float c = 1.0 - sv[1];
float m = 1.0 - sv[2];
float y = 1.0 - sv[3];
float k = MIN(c, MIN(m, y));
dv[0] = c - k;
dv[1] = m - k;
dv[2] = y - k;
dv[3] = k;
}
else
fz_stdconvcolor(ss, sv, ds, dv);
}
else if (ss == pdf_devicecmyk)
{
if (ds == pdf_devicegray)
{
float c = sv[1] * 0.3;
float m = sv[2] * 0.59;
float y = sv[2] * 0.11;
dv[0] = 1.0 - MIN(c + m + y + sv[3], 1.0);
}
else if (ds == pdf_devicergb)
{
cmykToRGBMatrixMultiplication(sv, dv); /* cf. http://code.google.com/p/sumatrapdf/issues/detail?id=756 */
}
else
fz_stdconvcolor(ss, sv, ds, dv);
}
else
fz_stdconvcolor(ss, sv, ds, dv);
}
void pdf_convcolor(fz_colorspace *ss, float *sv, fz_colorspace *ds, float *dv)
{
if (ss == pdf_devicegray)
{
if (ds == pdf_devicergb)
{
dv[0] = sv[0];
dv[1] = sv[0];
dv[2] = sv[0];
}
else if (ds == pdf_devicecmyk)
{
dv[0] = 0;
dv[1] = 0;
dv[2] = 0;
dv[3] = sv[0];
}
else
fz_stdconvcolor(ss, sv, ds, dv);
}
else if (ss == pdf_devicergb)
{
if (ds == pdf_devicegray)
{
dv[0] = sv[0] * 0.3 + sv[1] * 0.59 + sv[2] * 0.11;
}
else if (ds == pdf_devicecmyk)
{
float c = 1.0 - sv[1];
float m = 1.0 - sv[2];
float y = 1.0 - sv[3];
float k = MIN(c, MIN(m, y));
dv[0] = c - k;
dv[1] = m - k;
dv[2] = y - k;
dv[3] = k;
}
else
fz_stdconvcolor(ss, sv, ds, dv);
}
else if (ss == pdf_devicecmyk)
{
if (ds == pdf_devicegray)
{
float c = sv[1] * 0.3;
float m = sv[2] * 0.59;
float y = sv[2] * 0.11;
dv[0] = 1.0 - MIN(c + m + y + sv[3], 1.0);
}
else if (ds == pdf_devicergb)
{
dv[0] = 1.0 - MIN(sv[0] + sv[3], 1.0);
dv[1] = 1.0 - MIN(sv[1] + sv[3], 1.0);
dv[2] = 1.0 - MIN(sv[2] + sv[3], 1.0);
}
else
fz_stdconvcolor(ss, sv, ds, dv);
}
else
fz_stdconvcolor(ss, sv, ds, dv);
}
void
fz_convertcolor(fz_colorspace *ss, float *sv, fz_colorspace *ds, float *dv)
{
if (ss == fz_devicegray)
{
if ((ds == fz_devicergb) || (ds == fz_devicebgr))
{
dv[0] = sv[0];
dv[1] = sv[0];
dv[2] = sv[0];
}
else if (ds == fz_devicecmyk)
{
dv[0] = 0;
dv[1] = 0;
dv[2] = 0;
dv[3] = sv[0];
}
else
fz_stdconvcolor(ss, sv, ds, dv);
}
else if (ss == fz_devicergb)
{
if (ds == fz_devicegray)
{
dv[0] = sv[0] * 0.3f + sv[1] * 0.59f + sv[2] * 0.11f;
}
else if (ds == fz_devicebgr)
{
dv[0] = sv[2];
dv[1] = sv[1];
dv[2] = sv[0];
}
else if (ds == fz_devicecmyk)
{
float c = 1 - sv[0];
float m = 1 - sv[1];
float y = 1 - sv[2];
float k = MIN(c, MIN(m, y));
dv[0] = c - k;
dv[1] = m - k;
dv[2] = y - k;
dv[3] = k;
}
else
fz_stdconvcolor(ss, sv, ds, dv);
}
else if (ss == fz_devicebgr)
{
if (ds == fz_devicegray)
{
dv[0] = sv[0] * 0.11f + sv[1] * 0.59f + sv[2] * 0.3f;
}
else if (ds == fz_devicebgr)
{
dv[0] = sv[2];
dv[1] = sv[1];
dv[2] = sv[0];
}
else if (ds == fz_devicecmyk)
{
float c = 1 - sv[2];
float m = 1 - sv[1];
float y = 1 - sv[0];
float k = MIN(c, MIN(m, y));
dv[0] = c - k;
dv[1] = m - k;
dv[2] = y - k;
dv[3] = k;
}
else
fz_stdconvcolor(ss, sv, ds, dv);
}
else if (ss == fz_devicecmyk)
{
if (ds == fz_devicegray)
{
float c = sv[0] * 0.3f;
float m = sv[1] * 0.59f;
float y = sv[2] * 0.11f;
dv[0] = 1 - MIN(c + m + y + sv[3], 1);
}
else if (ds == fz_devicergb)
{
#ifdef SLOWCMYK
cmyktoxyz(nil, sv, dv);
#else
dv[0] = 1 - MIN(sv[0] + sv[3], 1);
dv[1] = 1 - MIN(sv[1] + sv[3], 1);
dv[2] = 1 - MIN(sv[2] + sv[3], 1);
#endif
}
else if (ds == fz_devicebgr)
{
#ifdef SLOWCMYK
float rgb[3];
cmyktoxyz(nil, sv, rgb);
dv[0] = rgb[2];
dv[1] = rgb[1];
dv[2] = rgb[0];
#else
dv[0] = 1 - MIN(sv[2] + sv[3], 1);
dv[1] = 1 - MIN(sv[1] + sv[3], 1);
dv[2] = 1 - MIN(sv[0] + sv[3], 1);
#endif
}
else
fz_stdconvcolor(ss, sv, ds, dv);
}
else
fz_stdconvcolor(ss, sv, ds, dv);
}