mirror of
https://github.com/glfw/glfw.git
synced 2024-11-14 06:23:50 +00:00
85172703db
If the application is not linked against the Vulkan loader and relies on
a third-party loader library or glfwGetInstanceProcAddress, then our
call to dlopen will fail without a custom dyld environment variable.
This adds a fallback of looking in the directory of the main executable,
which matches the bundle structure recommended by the Vulkan SDK, making
that finally work out of the box for fully dynamic loading.
(cherry picked from commit 7da87aaae7)
333 lines
12 KiB
C
333 lines
12 KiB
C
//========================================================================
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// GLFW 3.3 - www.glfw.org
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//------------------------------------------------------------------------
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// Copyright (c) 2002-2006 Marcus Geelnard
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// Copyright (c) 2006-2018 Camilla Löwy <elmindreda@glfw.org>
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//
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// This software is provided 'as-is', without any express or implied
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// warranty. In no event will the authors be held liable for any damages
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// arising from the use of this software.
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//
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// Permission is granted to anyone to use this software for any purpose,
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// including commercial applications, and to alter it and redistribute it
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// freely, subject to the following restrictions:
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//
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// 1. The origin of this software must not be misrepresented; you must not
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// claim that you wrote the original software. If you use this software
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// in a product, an acknowledgment in the product documentation would
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// be appreciated but is not required.
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//
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// 2. Altered source versions must be plainly marked as such, and must not
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// be misrepresented as being the original software.
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//
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// 3. This notice may not be removed or altered from any source
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// distribution.
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//
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//========================================================================
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// Please use C89 style variable declarations in this file because VS 2010
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//========================================================================
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#include "internal.h"
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#include <assert.h>
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#include <string.h>
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#include <stdlib.h>
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#define _GLFW_FIND_LOADER 1
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#define _GLFW_REQUIRE_LOADER 2
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//////////////////////////////////////////////////////////////////////////
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////// GLFW internal API //////
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//////////////////////////////////////////////////////////////////////////
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GLFWbool _glfwInitVulkan(int mode)
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{
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VkResult err;
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VkExtensionProperties* ep;
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uint32_t i, count;
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if (_glfw.vk.available)
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return GLFW_TRUE;
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#if !defined(_GLFW_VULKAN_STATIC)
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#if defined(_GLFW_VULKAN_LIBRARY)
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_glfw.vk.handle = _glfw_dlopen(_GLFW_VULKAN_LIBRARY);
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#elif defined(_GLFW_WIN32)
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_glfw.vk.handle = _glfw_dlopen("vulkan-1.dll");
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#elif defined(_GLFW_COCOA)
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_glfw.vk.handle = _glfw_dlopen("libvulkan.1.dylib");
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if (!_glfw.vk.handle)
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_glfw.vk.handle = _glfwLoadLocalVulkanLoaderNS();
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#else
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_glfw.vk.handle = _glfw_dlopen("libvulkan.so.1");
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#endif
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if (!_glfw.vk.handle)
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{
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if (mode == _GLFW_REQUIRE_LOADER)
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_glfwInputError(GLFW_API_UNAVAILABLE, "Vulkan: Loader not found");
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return GLFW_FALSE;
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}
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_glfw.vk.GetInstanceProcAddr = (PFN_vkGetInstanceProcAddr)
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_glfw_dlsym(_glfw.vk.handle, "vkGetInstanceProcAddr");
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if (!_glfw.vk.GetInstanceProcAddr)
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{
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_glfwInputError(GLFW_API_UNAVAILABLE,
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"Vulkan: Loader does not export vkGetInstanceProcAddr");
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_glfwTerminateVulkan();
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return GLFW_FALSE;
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}
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_glfw.vk.EnumerateInstanceExtensionProperties = (PFN_vkEnumerateInstanceExtensionProperties)
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vkGetInstanceProcAddr(NULL, "vkEnumerateInstanceExtensionProperties");
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if (!_glfw.vk.EnumerateInstanceExtensionProperties)
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{
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_glfwInputError(GLFW_API_UNAVAILABLE,
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"Vulkan: Failed to retrieve vkEnumerateInstanceExtensionProperties");
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_glfwTerminateVulkan();
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return GLFW_FALSE;
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}
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#endif // _GLFW_VULKAN_STATIC
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err = vkEnumerateInstanceExtensionProperties(NULL, &count, NULL);
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if (err)
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{
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// NOTE: This happens on systems with a loader but without any Vulkan ICD
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if (mode == _GLFW_REQUIRE_LOADER)
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{
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_glfwInputError(GLFW_API_UNAVAILABLE,
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"Vulkan: Failed to query instance extension count: %s",
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_glfwGetVulkanResultString(err));
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}
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_glfwTerminateVulkan();
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return GLFW_FALSE;
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}
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ep = calloc(count, sizeof(VkExtensionProperties));
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err = vkEnumerateInstanceExtensionProperties(NULL, &count, ep);
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if (err)
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{
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_glfwInputError(GLFW_API_UNAVAILABLE,
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"Vulkan: Failed to query instance extensions: %s",
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_glfwGetVulkanResultString(err));
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free(ep);
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_glfwTerminateVulkan();
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return GLFW_FALSE;
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}
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for (i = 0; i < count; i++)
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{
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if (strcmp(ep[i].extensionName, "VK_KHR_surface") == 0)
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_glfw.vk.KHR_surface = GLFW_TRUE;
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#if defined(_GLFW_WIN32)
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else if (strcmp(ep[i].extensionName, "VK_KHR_win32_surface") == 0)
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_glfw.vk.KHR_win32_surface = GLFW_TRUE;
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#elif defined(_GLFW_COCOA)
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else if (strcmp(ep[i].extensionName, "VK_MVK_macos_surface") == 0)
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_glfw.vk.MVK_macos_surface = GLFW_TRUE;
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else if (strcmp(ep[i].extensionName, "VK_EXT_metal_surface") == 0)
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_glfw.vk.EXT_metal_surface = GLFW_TRUE;
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#elif defined(_GLFW_X11)
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else if (strcmp(ep[i].extensionName, "VK_KHR_xlib_surface") == 0)
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_glfw.vk.KHR_xlib_surface = GLFW_TRUE;
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else if (strcmp(ep[i].extensionName, "VK_KHR_xcb_surface") == 0)
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_glfw.vk.KHR_xcb_surface = GLFW_TRUE;
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#elif defined(_GLFW_WAYLAND)
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else if (strcmp(ep[i].extensionName, "VK_KHR_wayland_surface") == 0)
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_glfw.vk.KHR_wayland_surface = GLFW_TRUE;
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#endif
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}
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free(ep);
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_glfw.vk.available = GLFW_TRUE;
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_glfwPlatformGetRequiredInstanceExtensions(_glfw.vk.extensions);
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return GLFW_TRUE;
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}
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void _glfwTerminateVulkan(void)
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{
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#if !defined(_GLFW_VULKAN_STATIC)
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if (_glfw.vk.handle)
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_glfw_dlclose(_glfw.vk.handle);
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#endif
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}
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const char* _glfwGetVulkanResultString(VkResult result)
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{
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switch (result)
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{
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case VK_SUCCESS:
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return "Success";
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case VK_NOT_READY:
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return "A fence or query has not yet completed";
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case VK_TIMEOUT:
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return "A wait operation has not completed in the specified time";
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case VK_EVENT_SET:
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return "An event is signaled";
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case VK_EVENT_RESET:
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return "An event is unsignaled";
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case VK_INCOMPLETE:
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return "A return array was too small for the result";
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case VK_ERROR_OUT_OF_HOST_MEMORY:
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return "A host memory allocation has failed";
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case VK_ERROR_OUT_OF_DEVICE_MEMORY:
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return "A device memory allocation has failed";
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case VK_ERROR_INITIALIZATION_FAILED:
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return "Initialization of an object could not be completed for implementation-specific reasons";
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case VK_ERROR_DEVICE_LOST:
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return "The logical or physical device has been lost";
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case VK_ERROR_MEMORY_MAP_FAILED:
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return "Mapping of a memory object has failed";
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case VK_ERROR_LAYER_NOT_PRESENT:
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return "A requested layer is not present or could not be loaded";
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case VK_ERROR_EXTENSION_NOT_PRESENT:
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return "A requested extension is not supported";
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case VK_ERROR_FEATURE_NOT_PRESENT:
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return "A requested feature is not supported";
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case VK_ERROR_INCOMPATIBLE_DRIVER:
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return "The requested version of Vulkan is not supported by the driver or is otherwise incompatible";
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case VK_ERROR_TOO_MANY_OBJECTS:
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return "Too many objects of the type have already been created";
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case VK_ERROR_FORMAT_NOT_SUPPORTED:
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return "A requested format is not supported on this device";
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case VK_ERROR_SURFACE_LOST_KHR:
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return "A surface is no longer available";
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case VK_SUBOPTIMAL_KHR:
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return "A swapchain no longer matches the surface properties exactly, but can still be used";
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case VK_ERROR_OUT_OF_DATE_KHR:
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return "A surface has changed in such a way that it is no longer compatible with the swapchain";
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case VK_ERROR_INCOMPATIBLE_DISPLAY_KHR:
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return "The display used by a swapchain does not use the same presentable image layout";
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case VK_ERROR_NATIVE_WINDOW_IN_USE_KHR:
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return "The requested window is already connected to a VkSurfaceKHR, or to some other non-Vulkan API";
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case VK_ERROR_VALIDATION_FAILED_EXT:
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return "A validation layer found an error";
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default:
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return "ERROR: UNKNOWN VULKAN ERROR";
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}
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}
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//////////////////////////////////////////////////////////////////////////
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////// GLFW public API //////
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//////////////////////////////////////////////////////////////////////////
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GLFWAPI int glfwVulkanSupported(void)
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{
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_GLFW_REQUIRE_INIT_OR_RETURN(GLFW_FALSE);
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return _glfwInitVulkan(_GLFW_FIND_LOADER);
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}
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GLFWAPI const char** glfwGetRequiredInstanceExtensions(uint32_t* count)
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{
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assert(count != NULL);
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*count = 0;
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_GLFW_REQUIRE_INIT_OR_RETURN(NULL);
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if (!_glfwInitVulkan(_GLFW_REQUIRE_LOADER))
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return NULL;
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if (!_glfw.vk.extensions[0])
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return NULL;
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*count = 2;
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return (const char**) _glfw.vk.extensions;
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}
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GLFWAPI GLFWvkproc glfwGetInstanceProcAddress(VkInstance instance,
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const char* procname)
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{
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GLFWvkproc proc;
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assert(procname != NULL);
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_GLFW_REQUIRE_INIT_OR_RETURN(NULL);
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if (!_glfwInitVulkan(_GLFW_REQUIRE_LOADER))
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return NULL;
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proc = (GLFWvkproc) vkGetInstanceProcAddr(instance, procname);
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#if defined(_GLFW_VULKAN_STATIC)
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if (!proc)
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{
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if (strcmp(procname, "vkGetInstanceProcAddr") == 0)
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return (GLFWvkproc) vkGetInstanceProcAddr;
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}
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#else
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if (!proc)
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proc = (GLFWvkproc) _glfw_dlsym(_glfw.vk.handle, procname);
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#endif
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return proc;
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}
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GLFWAPI int glfwGetPhysicalDevicePresentationSupport(VkInstance instance,
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VkPhysicalDevice device,
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uint32_t queuefamily)
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{
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assert(instance != VK_NULL_HANDLE);
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assert(device != VK_NULL_HANDLE);
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_GLFW_REQUIRE_INIT_OR_RETURN(GLFW_FALSE);
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if (!_glfwInitVulkan(_GLFW_REQUIRE_LOADER))
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return GLFW_FALSE;
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if (!_glfw.vk.extensions[0])
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{
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_glfwInputError(GLFW_API_UNAVAILABLE,
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"Vulkan: Window surface creation extensions not found");
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return GLFW_FALSE;
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}
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return _glfwPlatformGetPhysicalDevicePresentationSupport(instance,
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device,
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queuefamily);
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}
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GLFWAPI VkResult glfwCreateWindowSurface(VkInstance instance,
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GLFWwindow* handle,
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const VkAllocationCallbacks* allocator,
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VkSurfaceKHR* surface)
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{
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_GLFWwindow* window = (_GLFWwindow*) handle;
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assert(instance != VK_NULL_HANDLE);
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assert(window != NULL);
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assert(surface != NULL);
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*surface = VK_NULL_HANDLE;
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_GLFW_REQUIRE_INIT_OR_RETURN(VK_ERROR_INITIALIZATION_FAILED);
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if (!_glfwInitVulkan(_GLFW_REQUIRE_LOADER))
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return VK_ERROR_INITIALIZATION_FAILED;
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if (!_glfw.vk.extensions[0])
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{
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_glfwInputError(GLFW_API_UNAVAILABLE,
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"Vulkan: Window surface creation extensions not found");
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return VK_ERROR_EXTENSION_NOT_PRESENT;
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}
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if (window->context.client != GLFW_NO_API)
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{
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_glfwInputError(GLFW_INVALID_VALUE,
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"Vulkan: Window surface creation requires the window to have the client API set to GLFW_NO_API");
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return VK_ERROR_NATIVE_WINDOW_IN_USE_KHR;
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}
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return _glfwPlatformCreateWindowSurface(instance, window, allocator, surface);
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}
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