#include "check.h" #include "display.h" DisplayDevice* tt_display_device_alloc(DisplayDriver* driver) { DisplayDevice* display = malloc(sizeof(DisplayDevice)); memset(display, 0, sizeof(DisplayDevice)); tt_check(driver->create_display_device(display), "failed to create display"); tt_check(display->io_handle != NULL); tt_check(display->display_handle != NULL); tt_check(display->horizontal_resolution != 0); tt_check(display->vertical_resolution != 0); tt_check(display->draw_buffer_height > 0); tt_check(display->bits_per_pixel > 0); return display; }