diff options
Diffstat (limited to 'glfw-3.2.1/src/vulkan.c')
| -rw-r--r-- | glfw-3.2.1/src/vulkan.c | 302 |
1 files changed, 302 insertions, 0 deletions
diff --git a/glfw-3.2.1/src/vulkan.c b/glfw-3.2.1/src/vulkan.c new file mode 100644 index 0000000..20011de --- /dev/null +++ b/glfw-3.2.1/src/vulkan.c @@ -0,0 +1,302 @@ +//======================================================================== +// GLFW 3.2 - www.glfw.org +//------------------------------------------------------------------------ +// Copyright (c) 2002-2006 Marcus Geelnard +// Copyright (c) 2006-2016 Camilla Berglund <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. +// +//======================================================================== + +#include "internal.h" + +#include <assert.h> +#include <string.h> +#include <stdlib.h> + + +////////////////////////////////////////////////////////////////////////// +////// GLFW internal API ////// +////////////////////////////////////////////////////////////////////////// + +GLFWbool _glfwInitVulkan(void) +{ + VkResult err; + VkExtensionProperties* ep; + uint32_t i, count; + +#if !defined(_GLFW_VULKAN_STATIC) +#if defined(_GLFW_WIN32) + const char* name = "vulkan-1.dll"; +#else + const char* name = "libvulkan.so.1"; +#endif + + if (_glfw.vk.available) + return GLFW_TRUE; + + _glfw.vk.handle = _glfw_dlopen(name); + if (!_glfw.vk.handle) + 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) + { + _glfwInputError(GLFW_PLATFORM_ERROR, + "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_PLATFORM_ERROR, + "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 (strcmp(ep[i].extensionName, "VK_KHR_win32_surface") == 0) + _glfw.vk.KHR_win32_surface = GLFW_TRUE; + if (strcmp(ep[i].extensionName, "VK_KHR_xlib_surface") == 0) + _glfw.vk.KHR_xlib_surface = GLFW_TRUE; + if (strcmp(ep[i].extensionName, "VK_KHR_xcb_surface") == 0) + _glfw.vk.KHR_xcb_surface = GLFW_TRUE; + if (strcmp(ep[i].extensionName, "VK_KHR_wayland_surface") == 0) + _glfw.vk.KHR_wayland_surface = GLFW_TRUE; + if (strcmp(ep[i].extensionName, "VK_KHR_mir_surface") == 0) + _glfw.vk.KHR_mir_surface = GLFW_TRUE; + } + + free(ep); + + _glfw.vk.available = GLFW_TRUE; + + if (_glfw.vk.KHR_surface) + { + _glfw.vk.extensions = + _glfwPlatformGetRequiredInstanceExtensions(&_glfw.vk.extensionCount); + } + + return GLFW_TRUE; +} + +void _glfwTerminateVulkan(void) +{ + uint32_t i; + + for (i = 0; i < _glfw.vk.extensionCount; i++) + free(_glfw.vk.extensions[i]); + free(_glfw.vk.extensions); + + if (_glfw.vk.handle) + _glfw_dlclose(_glfw.vk.handle); +} + +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(); +} + +GLFWAPI const char** glfwGetRequiredInstanceExtensions(uint32_t* count) +{ + *count = 0; + + _GLFW_REQUIRE_INIT_OR_RETURN(NULL); + + if (!_glfwInitVulkan()) + { + _glfwInputError(GLFW_API_UNAVAILABLE, "Vulkan: API not available"); + return NULL; + } + + *count = _glfw.vk.extensionCount; + return (const char**) _glfw.vk.extensions; +} + +GLFWAPI GLFWvkproc glfwGetInstanceProcAddress(VkInstance instance, + const char* procname) +{ + GLFWvkproc proc; + + _GLFW_REQUIRE_INIT_OR_RETURN(NULL); + + if (!_glfwInitVulkan()) + { + _glfwInputError(GLFW_API_UNAVAILABLE, "Vulkan: API not available"); + return NULL; + } + + proc = (GLFWvkproc) vkGetInstanceProcAddr(instance, procname); + if (!proc) + proc = (GLFWvkproc) _glfw_dlsym(_glfw.vk.handle, procname); + + return proc; +} + +GLFWAPI int glfwGetPhysicalDevicePresentationSupport(VkInstance instance, + VkPhysicalDevice device, + uint32_t queuefamily) +{ + _GLFW_REQUIRE_INIT_OR_RETURN(GLFW_FALSE); + + if (!_glfwInitVulkan()) + { + _glfwInputError(GLFW_API_UNAVAILABLE, "Vulkan: API not available"); + return GLFW_FALSE; + } + + if (!_glfw.vk.extensions) + { + _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(window != NULL); + assert(surface != NULL); + + *surface = VK_NULL_HANDLE; + + _GLFW_REQUIRE_INIT_OR_RETURN(VK_ERROR_INITIALIZATION_FAILED); + + if (!_glfwInitVulkan()) + { + _glfwInputError(GLFW_API_UNAVAILABLE, "Vulkan: API not available"); + return VK_ERROR_INITIALIZATION_FAILED; + } + + if (!_glfw.vk.extensions) + { + _glfwInputError(GLFW_API_UNAVAILABLE, + "Vulkan: Window surface creation extensions not found"); + return VK_ERROR_EXTENSION_NOT_PRESENT; + } + + return _glfwPlatformCreateWindowSurface(instance, window, allocator, surface); +} + |