Lines Matching refs:PNG_RGB_TO_GRAY
965 png_ptr->transformations |= PNG_RGB_TO_GRAY;
992 /* png_ptr->transformations &= ~PNG_RGB_TO_GRAY; */
1354 * 3) PNG_RGB_TO_GRAY
1415 if (png_ptr->transformations & PNG_RGB_TO_GRAY)
1547 * PNG_RGB_TO_GRAY if PNG_GAMMA is not set? The answer seems to be that
1558 || ((png_ptr->transformations & PNG_RGB_TO_GRAY)
1583 if (png_ptr->transformations & PNG_RGB_TO_GRAY)
1806 (png_ptr->transformations & PNG_RGB_TO_GRAY) == 0)
2031 if (png_ptr->transformations & PNG_RGB_TO_GRAY)
4760 if (png_ptr->transformations & PNG_RGB_TO_GRAY)
4769 if ((png_ptr->transformations & PNG_RGB_TO_GRAY) ==
4773 if ((png_ptr->transformations & PNG_RGB_TO_GRAY) ==
4830 !(png_ptr->transformations & PNG_RGB_TO_GRAY) &&