Module: SDL2::Vulkan

Defined in:
ext/sdl2_vulkan/sdl2_vulkan.c

Class Method Summary collapse

Class Method Details

.load_library(*args) ⇒ Object

Loads the Vulkan library. If path is given, it will be used; otherwise the library will be searched for dynamically. Raises an error if the library could not be loaded.



21
22
23
24
25
26
27
 
# File 'ext/sdl2_vulkan/sdl2_vulkan.c', line 21

static VALUE Vulkan_load_library(int argc, VALUE *argv, VALUE self) {
  const char *path = NULL;
  if (argc > 0 && !NIL_P(argv[0])) path = StringValuePtr(argv[0]);
  int result = SDL_Vulkan_LoadLibrary(path);
  if (result != 0) rb_raise(rb_eRuntimeError, "Failed to load Vulkan library: %s", SDL_GetError());
  return self;
}

.unload_library ⇒ Object

Unloads the Vulkan library.



32
33
34
35
 
# File 'ext/sdl2_vulkan/sdl2_vulkan.c', line 32

static VALUE Vulkan_unload_library(VALUE self) {
  SDL_Vulkan_UnloadLibrary();
  return self;
}

.vk_get_instance_proc_addr ⇒ Object

Returns an integer value which is the memory address of the vkGetInstanceProcAddr function. The integer value will need to be converted into something more useful, for instance using Fiddle. Returns nil if the address would be NULL.



44
45
46
 
# File 'ext/sdl2_vulkan/sdl2_vulkan.c', line 44

static VALUE Vulkan_get_vk_get_instance_proc_addr(VALUE self) {
  return PTR2NUM(SDL_Vulkan_GetVkGetInstanceProcAddr());
}