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      1 
      2 /*
      3  * Copyright 2016 Google Inc.
      4  *
      5  * Use of this source code is governed by a BSD-style license that can be
      6  * found in the LICENSE file.
      7  */
      8 
      9 
     10 #include "vk/GrVkInterface.h"
     11 #include "vk/GrVkUtil.h"
     12 
     13 #include "vk/VkTestUtils.h"
     14 
     15 #include <X11/Xlib-xcb.h>
     16 
     17 #include "WindowContextFactory_unix.h"
     18 #include "../VulkanWindowContext.h"
     19 
     20 namespace sk_app {
     21 
     22 namespace window_context_factory {
     23 
     24 WindowContext* NewVulkanForXlib(const XlibWindowInfo& info, const DisplayParams& displayParams) {
     25     PFN_vkGetInstanceProcAddr instProc;
     26     PFN_vkGetDeviceProcAddr devProc;
     27     if (!sk_gpu_test::LoadVkLibraryAndGetProcAddrFuncs(&instProc, &devProc)) {
     28         return nullptr;
     29     }
     30 
     31     auto createVkSurface = [&info, instProc](VkInstance instance) -> VkSurfaceKHR {
     32         static PFN_vkCreateXcbSurfaceKHR createXcbSurfaceKHR = nullptr;
     33         if (!createXcbSurfaceKHR) {
     34             createXcbSurfaceKHR =
     35                     (PFN_vkCreateXcbSurfaceKHR) instProc(instance, "vkCreateXcbSurfaceKHR");
     36         }
     37 
     38         VkSurfaceKHR surface;
     39 
     40         VkXcbSurfaceCreateInfoKHR surfaceCreateInfo;
     41         memset(&surfaceCreateInfo, 0, sizeof(VkXcbSurfaceCreateInfoKHR));
     42         surfaceCreateInfo.sType = VK_STRUCTURE_TYPE_XCB_SURFACE_CREATE_INFO_KHR;
     43         surfaceCreateInfo.pNext = nullptr;
     44         surfaceCreateInfo.flags = 0;
     45         surfaceCreateInfo.connection = XGetXCBConnection(info.fDisplay);
     46         surfaceCreateInfo.window = info.fWindow;
     47 
     48         VkResult res = createXcbSurfaceKHR(instance, &surfaceCreateInfo, nullptr, &surface);
     49         if (VK_SUCCESS != res) {
     50             return VK_NULL_HANDLE;
     51         }
     52 
     53         return surface;
     54     };
     55 
     56     auto canPresent = [&info, instProc](VkInstance instance, VkPhysicalDevice physDev,
     57                               uint32_t queueFamilyIndex) {
     58         static PFN_vkGetPhysicalDeviceXcbPresentationSupportKHR
     59                                                 getPhysicalDeviceXcbPresentationSupportKHR = nullptr;
     60         if (!getPhysicalDeviceXcbPresentationSupportKHR) {
     61             getPhysicalDeviceXcbPresentationSupportKHR =
     62                 (PFN_vkGetPhysicalDeviceXcbPresentationSupportKHR)
     63                     instProc(instance, "vkGetPhysicalDeviceXcbPresentationSupportKHR");
     64         }
     65 
     66 
     67         Display* display = info.fDisplay;
     68         VisualID visualID = info.fVisualInfo->visualid;
     69         VkBool32 check = getPhysicalDeviceXcbPresentationSupportKHR(physDev,
     70                                                                     queueFamilyIndex,
     71                                                                     XGetXCBConnection(display),
     72                                                                     visualID);
     73         return (VK_FALSE != check);
     74     };
     75     WindowContext* context = new VulkanWindowContext(displayParams, createVkSurface, canPresent,
     76                                                      instProc, devProc);
     77     if (!context->isValid()) {
     78         delete context;
     79         return nullptr;
     80     }
     81     return context;
     82 }
     83 
     84 }  // namespace VulkanWindowContextFactory
     85 
     86 }  // namespace sk_app
     87