Initial Commit

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);
+}
+