Lines Matching refs:xy
1198 png_xy_from_XYZ(png_xy *xy, const png_XYZ *XYZ)
1203 if (png_muldiv(&xy->redx, XYZ->red_X, PNG_FP_1, d) == 0)
1205 if (png_muldiv(&xy->redy, XYZ->red_Y, PNG_FP_1, d) == 0)
1212 if (png_muldiv(&xy->greenx, XYZ->green_X, PNG_FP_1, d) == 0)
1214 if (png_muldiv(&xy->greeny, XYZ->green_Y, PNG_FP_1, d) == 0)
1221 if (png_muldiv(&xy->bluex, XYZ->blue_X, PNG_FP_1, d) == 0)
1223 if (png_muldiv(&xy->bluey, XYZ->blue_Y, PNG_FP_1, d) == 0)
1232 if (png_muldiv(&xy->whitex, whiteX, PNG_FP_1, dwhite) == 0)
1234 if (png_muldiv(&xy->whitey, whiteY, PNG_FP_1, dwhite) == 0)
1241 png_XYZ_from_xy(png_XYZ *XYZ, const png_xy *xy)
1251 if (xy->redx < 0 || xy->redx > PNG_FP_1) return 1;
1252 if (xy->redy < 0 || xy->redy > PNG_FP_1-xy->redx) return 1;
1253 if (xy->greenx < 0 || xy->greenx > PNG_FP_1) return 1;
1254 if (xy->greeny < 0 || xy->greeny > PNG_FP_1-xy->greenx) return 1;
1255 if (xy->bluex < 0 || xy->bluex > PNG_FP_1) return 1;
1256 if (xy->bluey < 0 || xy->bluey > PNG_FP_1-xy->bluex) return 1;
1257 if (xy->whitex < 0 || xy->whitex > PNG_FP_1) return 1;
1258 if (xy->whitey < 5 || xy->whitey > PNG_FP_1-xy->whitex) return 1;
1439 if (png_muldiv(&left, xy->greenx-xy->bluex, xy->redy - xy->bluey, 7) == 0)
1441 if (png_muldiv(&right, xy->greeny-xy->bluey, xy->redx - xy->bluex, 7) == 0)
1446 if (png_muldiv(&left, xy->greenx-xy->bluex, xy->whitey-xy->bluey, 7) == 0)
1448 if (png_muldiv(&right, xy->greeny-xy->bluey, xy->whitex-xy->bluex, 7) == 0)
1456 if (png_muldiv(&red_inverse, xy->whitey, denominator, left-right) == 0 ||
1457 red_inverse <= xy->whitey /* r+g+b scales = white scale */)
1461 if (png_muldiv(&left, xy->redy-xy->bluey, xy->whitex-xy->bluex, 7) == 0)
1463 if (png_muldiv(&right, xy->redx-xy->bluex, xy->whitey-xy->bluey, 7) == 0)
1465 if (png_muldiv(&green_inverse, xy->whitey, denominator, left-right) == 0 ||
1466 green_inverse <= xy->whitey)
1472 blue_scale = png_reciprocal(xy->whitey) - png_reciprocal(red_inverse) -
1479 if (png_muldiv(&XYZ->red_X, xy->redx, PNG_FP_1, red_inverse) == 0)
1481 if (png_muldiv(&XYZ->red_Y, xy->redy, PNG_FP_1, red_inverse) == 0)
1483 if (png_muldiv(&XYZ->red_Z, PNG_FP_1 - xy->redx - xy->redy, PNG_FP_1,
1487 if (png_muldiv(&XYZ->green_X, xy->greenx, PNG_FP_1, green_inverse) == 0)
1489 if (png_muldiv(&XYZ->green_Y, xy->greeny, PNG_FP_1, green_inverse) == 0)
1491 if (png_muldiv(&XYZ->green_Z, PNG_FP_1 - xy->greenx - xy->greeny, PNG_FP_1,
1495 if (png_muldiv(&XYZ->blue_X, xy->bluex, blue_scale, PNG_FP_1) == 0)
1497 if (png_muldiv(&XYZ->blue_Y, xy->bluey, blue_scale, PNG_FP_1) == 0)
1499 if (png_muldiv(&XYZ->blue_Z, PNG_FP_1 - xy->bluex - xy->bluey, blue_scale,
1583 png_colorspace_check_xy(png_XYZ *XYZ, const png_xy *xy)
1589 result = png_XYZ_from_xy(XYZ, xy);
1597 if (png_colorspace_endpoints_match(xy, &xy_test,
1609 png_colorspace_check_XYZ(png_xy *xy, png_XYZ *XYZ)
1618 result = png_xy_from_XYZ(xy, XYZ);
1623 return png_colorspace_check_xy(&XYZtemp, xy);
1638 png_colorspacerp colorspace, const png_xy *xy, const png_XYZ *XYZ,
1654 if (png_colorspace_endpoints_match(xy, &colorspace->end_points_xy,
1667 colorspace->end_points_xy = *xy;
1674 if (png_colorspace_endpoints_match(xy, &sRGB_xy, 1000) != 0)
1686 png_colorspacerp colorspace, const png_xy *xy, int preferred)
1696 switch (png_colorspace_check_xy(&XYZ, xy))
1699 return png_colorspace_set_xy_and_XYZ(png_ptr, colorspace, xy, &XYZ,
1726 png_xy xy;
1728 switch (png_colorspace_check_XYZ(&xy, &XYZ))
1731 return png_colorspace_set_xy_and_XYZ(png_ptr, colorspace, &xy, &XYZ,