Lines Matching full:png_set_background
286 \fBvoid png_set_background (png_structp \fP\fIpng_ptr\fP\fB, png_color_16p \fP\fIbackground_color\fP\fB, int \fP\fIbackground_gamma_code\fP\fB, int \fP\fIneed_expand\fP\fB, double \fIbackground_gamma\fP\fB);\fP
1331 Libpng only supports composing onto a single color (using png_set_background;
1567 fire if more than one call to png_set_alpha_mode and png_set_background is
1572 png_set_background() to remove it by compositing against a fixed color. Don't
1576 png_set_background(png_ptr, &background_color,
1581 file, if you call png_set_background at this point you must arrange for the
1611 Calling png_set_background before the PNG file header is read will not work
1613 errors it is therefore much safer to call png_set_background after the head has
1724 damages the information provided by an earlier call to png_set_background
2264 version with no alpha channel use png_set_background; see below.
2314 png_set_background(), or png_strip_alpha().
2456 The png_set_background() function has been described already; it tells libpng to
2475 png_set_background(png_ptr, image_background,
2478 png_set_background(png_ptr, &my_background,
5351 composition (png_set_background for example). This applies even if the
5621 png_set_background(), that might be detected by certain regression tests.
