Lines Matching refs:gAMA
1036 png_colorspacerp colorspace, png_fixed_point gAMA, int from)
1043 * 1: the new gamma value comes from a gAMA chunk
1050 (png_muldiv(>est, colorspace->gamma, PNG_FP_1, gAMA) == 0 ||
1080 png_colorspacerp colorspace, png_fixed_point gAMA)
1090 * In 1.6.0 this test replaces the ones in pngrutil.c, in the gAMA chunk
1095 if (gAMA < 16 || gAMA > 625000000)
1111 if (png_colorspace_check_gamma(png_ptr, colorspace, gAMA,
1112 1/*from gAMA*/) != 0)
1115 colorspace->gamma = gAMA;
1865 * PNG file to have cHRM or gAMA chunks along with sRGB, but the values must
1868 * conceivable that an older app recorded incorrect gAMA and cHRM because of
