Lines Matching refs:background
1290 png_const_colorp background; member
1727 png_uint_32 background, int encoding) in png_colormap_compose() argument
1735 png_uint_32 b = decode_gamma(display, background, encoding); in png_colormap_compose()
2126 else if (display->background == NULL /* no way to remove it */) in png_image_read_colormap()
2136 back_g = display->background->green; in png_image_read_colormap()
2139 back_r = display->background->red; in png_image_read_colormap()
2140 back_b = display->background->blue; in png_image_read_colormap()
3478 if (display->background == NULL) in png_image_read_background()
3522 png_byte background8 = display->background->green; in png_image_read_background()
3523 png_uint_16 background = png_sRGB_table[background8]; in png_image_read_background() local
3548 component += background * (255-alpha); in png_image_read_background()
3837 else if (display->background != NULL) in png_image_read_direct()
3842 c.red = display->background->red; in png_image_read_direct()
3843 c.green = display->background->green; in png_image_read_direct()
3844 c.blue = display->background->blue; in png_image_read_direct()
3845 c.gray = display->background->green; in png_image_read_direct()
4108 png_image_finish_read(png_imagep image, png_const_colorp background, in png_image_finish_read() argument
4175 display.background = background; in png_image_finish_read()