16.12.2016 07:02, Tristan ross пишет: > > I use GRUB2 to boot up and set graphical mode. The function reads the > multiboot > headers and uses it to render.
Please post you code in plain text without any extra characters so it is readable. Or post direct link to your code. > 7:45 PM, December 15, 2016, Andrei Borzenkov <arvidj...@gmail.com>: > > 15.12.2016 22:29, Tristan ross пишет: > > Hey, I've got my os to boot with grub2 and it goes into graphics > mode. > > > "It" - grub or os? > > I'm trying to set the rgb color of pixels but I just get blue > when I > run my function to generate an rgb color. > > > How is your function related to grub? > > Code is at [1]https://github.com/SpaceboyRoss01/ronix > > > There is no single commit message there to understand what you are doing. > > Â > > Code to generate color: > > unsigned int graphics_color(int r,int g,int b) { > Â Â Â unsigned int color = ((r*1000)+(g*100)+(b*10)); > > > This is unreadable and in any case, posting random snippet without > telling where this snippet comes from is useless. Please post in plain > text and explain, where this code comes from and what you are attempting > to do. > > Â Â Â switch(graphics_mbi->framebuffer_type) { > Â Â Â Â Â Â Â case MULTIBOOT_FRAMEBUFFER_TYPE_RGB: > Â Â Â Â Â Â Â Â Â Â Â color = ((r << > graphics_mbi->framebuffer_red_mask_size) - r) << > graphics_mbi->framebuffer_red_field_position; > Â Â Â Â Â Â Â Â Â Â Â color += ((g << > graphics_mbi->framebuffer_green_mask_size) - g) << > graphics_mbi->framebuffer_green_field_position; > Â Â Â Â Â Â Â Â Â Â Â color += ((b << > graphics_mbi->framebuffer_blue_mask_size) - b) << > graphics_mbi->framebuffer_blue_field_position; > Â Â Â Â Â Â Â Â Â Â Â break; > Â Â Â Â Â Â Â case MULTIBOOT_FRAMEBUFFER_TYPE_EGA_TEXT: > Â Â Â Â Â Â Â Â Â Â color = '\\' | ((r*1000)+(g*100)+(b*10)); > Â Â Â Â Â Â Â Â Â Â break; > Â Â Â } > Â Â Â #ifdef DEBUG > Â Â Â debugf("RGB(%d,%d,%d) = %d\n",r,g,b,color); > Â Â Â #endif > Â Â Â return color; > } > Â > I'm running graphics_color(255,255,255) which returns -50200321 > How do I fix this so it returns 16777215 > I used the grub2 multiboot documentation. > > References > > 1. https://github.com/SpaceboyRoss01/ronix > _______________________________________________ > Help-grub mailing list > Help-grub@gnu.org <mailto:Help-grub@gnu.org> > https://lists.gnu.org/mailman/listinfo/help-grub > > > > > -- > Sent from Yandex.Mail for mobile > _______________________________________________ Help-grub mailing list Help-grub@gnu.org https://lists.gnu.org/mailman/listinfo/help-grub