C++ (Cpp) fz_invert3x3 Examples

Example #1

File: pdf_colorspace.c Project: fkhan/mupdf_fareed

static fz_colorspace *
loadcalrgb(pdf_xref *xref, fz_obj *dict)
{
	struct calrgb *cs;
	fz_obj *tmp;
	int i;

	cs = fz_malloc(sizeof(struct calrgb));

	pdf_logrsrc("load CalRGB\n");

	initcs((fz_colorspace*)cs, "CalRGB", 3, rgbtoxyz, xyztorgb, nil);

	cs->white[0] = 1.0;
	cs->white[1] = 1.0;
	cs->white[2] = 1.0;

	cs->black[0] = 0.0;
	cs->black[1] = 0.0;
	cs->black[2] = 0.0;

	cs->gamma[0] = 1.0;
	cs->gamma[1] = 1.0;
	cs->gamma[2] = 1.0;

	cs->matrix[0] = 1.0; cs->matrix[1] = 0.0; cs->matrix[2] = 0.0;
	cs->matrix[3] = 0.0; cs->matrix[4] = 1.0; cs->matrix[5] = 0.0;
	cs->matrix[6] = 0.0; cs->matrix[7] = 0.0; cs->matrix[8] = 1.0;

	tmp = fz_dictgets(dict, "WhitePoint");
	if (fz_isarray(tmp))
	{
		cs->white[0] = fz_toreal(fz_arrayget(tmp, 0));
		cs->white[1] = fz_toreal(fz_arrayget(tmp, 1));
		cs->white[2] = fz_toreal(fz_arrayget(tmp, 2));
	}

	tmp = fz_dictgets(dict, "BlackPoint");
	if (fz_isarray(tmp))
	{
		cs->black[0] = fz_toreal(fz_arrayget(tmp, 0));
		cs->black[1] = fz_toreal(fz_arrayget(tmp, 1));
		cs->black[2] = fz_toreal(fz_arrayget(tmp, 2));
	}

	tmp = fz_dictgets(dict, "Gamma");
	if (fz_isarray(tmp))
	{
		cs->gamma[0] = fz_toreal(fz_arrayget(tmp, 0));
		cs->gamma[1] = fz_toreal(fz_arrayget(tmp, 1));
		cs->gamma[2] = fz_toreal(fz_arrayget(tmp, 2));
	}

	tmp = fz_dictgets(dict, "Matrix");
	if (fz_isarray(tmp))
	{
		for (i = 0; i < 9; i++)
			cs->matrix[i] = fz_toreal(fz_arrayget(tmp, i));
	}

	fz_invert3x3(cs->invmat, cs->matrix);

	return (fz_colorspace*) cs;
}

Example #2

File: pdf_colorspace1.c Project: scootalootf2/bookr-irshell

static fz_error *
loadcalrgb(fz_colorspace **csp, pdf_xref *xref, fz_obj *dict)
{
	fz_error *error;
	struct calrgb *cs;
	fz_obj *tmp;
	int i;

	error = pdf_resolve(&dict, xref);
	if (error)
		return error;

	cs = fz_malloc(sizeof(struct calrgb));
	if (!cs)
		return fz_outofmem;

	pdf_logrsrc("load CalRGB\n");

	initcs((fz_colorspace*)cs, "CalRGB", 3, rgbtoxyz, xyztorgb, nil);

	cs->white[0] = 1.0;
	cs->white[1] = 1.0;
	cs->white[2] = 1.0;

	cs->black[0] = 0.0;
	cs->black[1] = 0.0;
	cs->black[2] = 0.0;

	cs->gamma[0] = 1.0;
	cs->gamma[1] = 1.0;
	cs->gamma[2] = 1.0;

	cs->matrix[0] = 1.0; cs->matrix[1] = 0.0; cs->matrix[2] = 0.0;
	cs->matrix[3] = 0.0; cs->matrix[4] = 1.0; cs->matrix[5] = 0.0;
	cs->matrix[6] = 0.0; cs->matrix[7] = 0.0; cs->matrix[8] = 1.0;

	tmp = fz_dictgets(dict, "WhitePoint");
	if (fz_isarray(tmp))
	{
		cs->white[0] = fz_toreal(fz_arrayget(tmp, 0));
		cs->white[1] = fz_toreal(fz_arrayget(tmp, 1));
		cs->white[2] = fz_toreal(fz_arrayget(tmp, 2));
	}

	tmp = fz_dictgets(dict, "BlackPoint");
	if (fz_isarray(tmp))
	{
		cs->black[0] = fz_toreal(fz_arrayget(tmp, 0));
		cs->black[1] = fz_toreal(fz_arrayget(tmp, 1));
		cs->black[2] = fz_toreal(fz_arrayget(tmp, 2));
	}

	tmp = fz_dictgets(dict, "Gamma");
	if (fz_isarray(tmp))
	{
		cs->gamma[0] = fz_toreal(fz_arrayget(tmp, 0));
		cs->gamma[1] = fz_toreal(fz_arrayget(tmp, 1));
		cs->gamma[2] = fz_toreal(fz_arrayget(tmp, 2));
	}

	tmp = fz_dictgets(dict, "Matrix");
	if (fz_isarray(tmp))
	{
		for (i = 0; i < 9; i++)
			cs->matrix[i] = fz_toreal(fz_arrayget(tmp, i));
	}

	fz_invert3x3(cs->invmat, cs->matrix);

	fz_dropobj(dict);

	*csp = (fz_colorspace*) cs;
	return nil;
}