Lines Matching full:png_set_gamma
334 \fBvoid png_set_gamma (png_structp \fP\fIpng_ptr\fP\fB, double \fP\fIscreen_gamma\fP\fB, double \fIdefault_file_gamma\fP\fB);\fP
1206 header. In earlier versions png_set_gamma() existed but behaved incorrectly if
1219 png_set_gamma(png_ptr, screen_gamma, output_gamma);
1260 encoding if it has no gAMA chunk and if png_set_gamma() has not been called
1270 encoding will be overridden if png_set_gamma() is called - the results may be
1328 png_set_gamma(png_ptr, screen_gamma, 1.0/screen_gamma);
1331 The screen_gamma value is the same as the argument to png_set_gamma; however,
1334 png_set_gamma. If you need different defaults call png_set_gamma() before
1405 If you call png_set_gamma() after png_set_alpha_mode() you
1555 is easier than achieving the same effect with png_set_gamma. You must use
1711 provided by an earlier call to png_set_gamma or png_set_alpha_mode.
2482 If you didn't call png_set_gamma() before reading the file header, for example
2488 supported then you can certainly do png_set_gamma() before reading the PNG
2497 png_set_gamma(png_ptr, screen_gamma, file_gamma);
2500 png_set_gamma(png_ptr, screen_gamma, 0.45455);
