ref: 277a0b8e733256edfa746bc8e59eb18232fa49a1
dir: /external/glfw/src/vulkan.c/
//========================================================================
// GLFW 3.3 - www.glfw.org
//------------------------------------------------------------------------
// Copyright (c) 2002-2006 Marcus Geelnard
// Copyright (c) 2006-2018 Camilla Löwy <elmindreda@glfw.org>
//
// This software is provided 'as-is', without any express or implied
// warranty. In no event will the authors be held liable for any damages
// arising from the use of this software.
//
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it
// freely, subject to the following restrictions:
//
// 1. The origin of this software must not be misrepresented; you must not
// claim that you wrote the original software. If you use this software
// in a product, an acknowledgment in the product documentation would
// be appreciated but is not required.
//
// 2. Altered source versions must be plainly marked as such, and must not
// be misrepresented as being the original software.
//
// 3. This notice may not be removed or altered from any source
// distribution.
//
//========================================================================
// Please use C89 style variable declarations in this file because VS 2010
//========================================================================
#include "internal.h"
#include <assert.h>
#include <string.h>
#include <stdlib.h>
#define _GLFW_FIND_LOADER 1
#define _GLFW_REQUIRE_LOADER 2
//////////////////////////////////////////////////////////////////////////
////// GLFW internal API //////
//////////////////////////////////////////////////////////////////////////
GLFWbool _glfwInitVulkan(int mode)
{
VkResult err;
VkExtensionProperties* ep;
uint32_t i, count;
if (_glfw.vk.available)
return GLFW_TRUE;
#if !defined(_GLFW_VULKAN_STATIC)
#if defined(_GLFW_VULKAN_LIBRARY)
_glfw.vk.handle = _glfw_dlopen(_GLFW_VULKAN_LIBRARY);
#elif defined(_GLFW_WIN32)
_glfw.vk.handle = _glfw_dlopen("vulkan-1.dll");
#elif defined(_GLFW_COCOA)
_glfw.vk.handle = _glfw_dlopen("libvulkan.1.dylib");
if (!_glfw.vk.handle)
_glfw.vk.handle = _glfwLoadLocalVulkanLoaderNS();
#else
_glfw.vk.handle = _glfw_dlopen("libvulkan.so.1");
#endif
if (!_glfw.vk.handle)
{
if (mode == _GLFW_REQUIRE_LOADER)
_glfwInputError(GLFW_API_UNAVAILABLE, "Vulkan: Loader not found");
return GLFW_FALSE;
}
_glfw.vk.GetInstanceProcAddr = (PFN_vkGetInstanceProcAddr)
_glfw_dlsym(_glfw.vk.handle, "vkGetInstanceProcAddr");
if (!_glfw.vk.GetInstanceProcAddr)
{
_glfwInputError(GLFW_API_UNAVAILABLE,
"Vulkan: Loader does not export vkGetInstanceProcAddr");
_glfwTerminateVulkan();
return GLFW_FALSE;
}
_glfw.vk.EnumerateInstanceExtensionProperties = (PFN_vkEnumerateInstanceExtensionProperties)
vkGetInstanceProcAddr(NULL, "vkEnumerateInstanceExtensionProperties");
if (!_glfw.vk.EnumerateInstanceExtensionProperties)
{
_glfwInputError(GLFW_API_UNAVAILABLE,
"Vulkan: Failed to retrieve vkEnumerateInstanceExtensionProperties");
_glfwTerminateVulkan();
return GLFW_FALSE;
}
#endif // _GLFW_VULKAN_STATIC
err = vkEnumerateInstanceExtensionProperties(NULL, &count, NULL);
if (err)
{
// NOTE: This happens on systems with a loader but without any Vulkan ICD
if (mode == _GLFW_REQUIRE_LOADER)
{
_glfwInputError(GLFW_API_UNAVAILABLE,
"Vulkan: Failed to query instance extension count: %s",
_glfwGetVulkanResultString(err));
}
_glfwTerminateVulkan();
return GLFW_FALSE;
}
ep = calloc(count, sizeof(VkExtensionProperties));
err = vkEnumerateInstanceExtensionProperties(NULL, &count, ep);
if (err)
{
_glfwInputError(GLFW_API_UNAVAILABLE,
"Vulkan: Failed to query instance extensions: %s",
_glfwGetVulkanResultString(err));
free(ep);
_glfwTerminateVulkan();
return GLFW_FALSE;
}
for (i = 0; i < count; i++)
{
if (strcmp(ep[i].extensionName, "VK_KHR_surface") == 0)
_glfw.vk.KHR_surface = GLFW_TRUE;
#if defined(_GLFW_WIN32)
else if (strcmp(ep[i].extensionName, "VK_KHR_win32_surface") == 0)
_glfw.vk.KHR_win32_surface = GLFW_TRUE;
#elif defined(_GLFW_COCOA)
else if (strcmp(ep[i].extensionName, "VK_MVK_macos_surface") == 0)
_glfw.vk.MVK_macos_surface = GLFW_TRUE;
else if (strcmp(ep[i].extensionName, "VK_EXT_metal_surface") == 0)
_glfw.vk.EXT_metal_surface = GLFW_TRUE;
#elif defined(_GLFW_X11)
else if (strcmp(ep[i].extensionName, "VK_KHR_xlib_surface") == 0)
_glfw.vk.KHR_xlib_surface = GLFW_TRUE;
else if (strcmp(ep[i].extensionName, "VK_KHR_xcb_surface") == 0)
_glfw.vk.KHR_xcb_surface = GLFW_TRUE;
#elif defined(_GLFW_WAYLAND)
else if (strcmp(ep[i].extensionName, "VK_KHR_wayland_surface") == 0)
_glfw.vk.KHR_wayland_surface = GLFW_TRUE;
#endif
}
free(ep);
_glfw.vk.available = GLFW_TRUE;
_glfwPlatformGetRequiredInstanceExtensions(_glfw.vk.extensions);
return GLFW_TRUE;
}
void _glfwTerminateVulkan(void)
{
#if !defined(_GLFW_VULKAN_STATIC)
if (_glfw.vk.handle)
_glfw_dlclose(_glfw.vk.handle);
#endif
}
const char* _glfwGetVulkanResultString(VkResult result)
{
switch (result)
{
case VK_SUCCESS:
return "Success";
case VK_NOT_READY:
return "A fence or query has not yet completed";
case VK_TIMEOUT:
return "A wait operation has not completed in the specified time";
case VK_EVENT_SET:
return "An event is signaled";
case VK_EVENT_RESET:
return "An event is unsignaled";
case VK_INCOMPLETE:
return "A return array was too small for the result";
case VK_ERROR_OUT_OF_HOST_MEMORY:
return "A host memory allocation has failed";
case VK_ERROR_OUT_OF_DEVICE_MEMORY:
return "A device memory allocation has failed";
case VK_ERROR_INITIALIZATION_FAILED:
return "Initialization of an object could not be completed for implementation-specific reasons";
case VK_ERROR_DEVICE_LOST:
return "The logical or physical device has been lost";
case VK_ERROR_MEMORY_MAP_FAILED:
return "Mapping of a memory object has failed";
case VK_ERROR_LAYER_NOT_PRESENT:
return "A requested layer is not present or could not be loaded";
case VK_ERROR_EXTENSION_NOT_PRESENT:
return "A requested extension is not supported";
case VK_ERROR_FEATURE_NOT_PRESENT:
return "A requested feature is not supported";
case VK_ERROR_INCOMPATIBLE_DRIVER:
return "The requested version of Vulkan is not supported by the driver or is otherwise incompatible";
case VK_ERROR_TOO_MANY_OBJECTS:
return "Too many objects of the type have already been created";
case VK_ERROR_FORMAT_NOT_SUPPORTED:
return "A requested format is not supported on this device";
case VK_ERROR_SURFACE_LOST_KHR:
return "A surface is no longer available";
case VK_SUBOPTIMAL_KHR:
return "A swapchain no longer matches the surface properties exactly, but can still be used";
case VK_ERROR_OUT_OF_DATE_KHR:
return "A surface has changed in such a way that it is no longer compatible with the swapchain";
case VK_ERROR_INCOMPATIBLE_DISPLAY_KHR:
return "The display used by a swapchain does not use the same presentable image layout";
case VK_ERROR_NATIVE_WINDOW_IN_USE_KHR:
return "The requested window is already connected to a VkSurfaceKHR, or to some other non-Vulkan API";
case VK_ERROR_VALIDATION_FAILED_EXT:
return "A validation layer found an error";
default:
return "ERROR: UNKNOWN VULKAN ERROR";
}
}
//////////////////////////////////////////////////////////////////////////
////// GLFW public API //////
//////////////////////////////////////////////////////////////////////////
GLFWAPI int glfwVulkanSupported(void)
{
_GLFW_REQUIRE_INIT_OR_RETURN(GLFW_FALSE);
return _glfwInitVulkan(_GLFW_FIND_LOADER);
}
GLFWAPI const char** glfwGetRequiredInstanceExtensions(uint32_t* count)
{
assert(count != NULL);
*count = 0;
_GLFW_REQUIRE_INIT_OR_RETURN(NULL);
if (!_glfwInitVulkan(_GLFW_REQUIRE_LOADER))
return NULL;
if (!_glfw.vk.extensions[0])
return NULL;
*count = 2;
return (const char**) _glfw.vk.extensions;
}
GLFWAPI GLFWvkproc glfwGetInstanceProcAddress(VkInstance instance,
const char* procname)
{
GLFWvkproc proc;
assert(procname != NULL);
_GLFW_REQUIRE_INIT_OR_RETURN(NULL);
if (!_glfwInitVulkan(_GLFW_REQUIRE_LOADER))
return NULL;
proc = (GLFWvkproc) vkGetInstanceProcAddr(instance, procname);
#if defined(_GLFW_VULKAN_STATIC)
if (!proc)
{
if (strcmp(procname, "vkGetInstanceProcAddr") == 0)
return (GLFWvkproc) vkGetInstanceProcAddr;
}
#else
if (!proc)
proc = (GLFWvkproc) _glfw_dlsym(_glfw.vk.handle, procname);
#endif
return proc;
}
GLFWAPI int glfwGetPhysicalDevicePresentationSupport(VkInstance instance,
VkPhysicalDevice device,
uint32_t queuefamily)
{
assert(instance != VK_NULL_HANDLE);
assert(device != VK_NULL_HANDLE);
_GLFW_REQUIRE_INIT_OR_RETURN(GLFW_FALSE);
if (!_glfwInitVulkan(_GLFW_REQUIRE_LOADER))
return GLFW_FALSE;
if (!_glfw.vk.extensions[0])
{
_glfwInputError(GLFW_API_UNAVAILABLE,
"Vulkan: Window surface creation extensions not found");
return GLFW_FALSE;
}
return _glfwPlatformGetPhysicalDevicePresentationSupport(instance,
device,
queuefamily);
}
GLFWAPI VkResult glfwCreateWindowSurface(VkInstance instance,
GLFWwindow* handle,
const VkAllocationCallbacks* allocator,
VkSurfaceKHR* surface)
{
_GLFWwindow* window = (_GLFWwindow*) handle;
assert(instance != VK_NULL_HANDLE);
assert(window != NULL);
assert(surface != NULL);
*surface = VK_NULL_HANDLE;
_GLFW_REQUIRE_INIT_OR_RETURN(VK_ERROR_INITIALIZATION_FAILED);
if (!_glfwInitVulkan(_GLFW_REQUIRE_LOADER))
return VK_ERROR_INITIALIZATION_FAILED;
if (!_glfw.vk.extensions[0])
{
_glfwInputError(GLFW_API_UNAVAILABLE,
"Vulkan: Window surface creation extensions not found");
return VK_ERROR_EXTENSION_NOT_PRESENT;
}
if (window->context.client != GLFW_NO_API)
{
_glfwInputError(GLFW_INVALID_VALUE,
"Vulkan: Window surface creation requires the window to have the client API set to GLFW_NO_API");
return VK_ERROR_NATIVE_WINDOW_IN_USE_KHR;
}
return _glfwPlatformCreateWindowSurface(instance, window, allocator, surface);
}