Lines Matching refs:gAMA
971 png_colorspacerp colorspace, png_fixed_point gAMA, int from)
978 * 1: the new gamma value comes from a gAMA chunk
985 (!png_muldiv(>est, colorspace->gamma, PNG_FP_1, gAMA) ||
1015 png_colorspacerp colorspace, png_fixed_point gAMA)
1025 * In 1.6.0 this test replaces the ones in pngrutil.c, in the gAMA chunk
1030 if (gAMA < 16 || gAMA > 625000000)
1046 if (png_colorspace_check_gamma(png_ptr, colorspace, gAMA, 1/*from gAMA*/))
1049 colorspace->gamma = gAMA;
1766 * PNG file to have cHRM or gAMA chunks along with sRGB, but the values must
1769 * conceivable that an older app recorded incorrect gAMA and cHRM because of
