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#include "include/gpu/vk/GrVkVulkan.h"
10
11#include "src/gpu/vk/GrVkInterface.h"
12#include "src/gpu/vk/GrVkUtil.h"
13
14#include "tools/gpu/vk/VkTestUtils.h"
15
16#include "tools/sk_app/VulkanWindowContext.h"
17#include "tools/sk_app/unix/WindowContextFactory_unix.h"
18
19#include <X11/Xlib-xcb.h>
20
21namespace sk_app {
22
23namespace window_context_factory {
24
25std::unique_ptr<WindowContext> MakeVulkanForXlib(const XlibWindowInfo& info,
26                                                 const DisplayParams& displayParams) {
27    PFN_vkGetInstanceProcAddr instProc;
28    PFN_vkGetDeviceProcAddr devProc;
29    if (!sk_gpu_test::LoadVkLibraryAndGetProcAddrFuncs(&instProc, &devProc)) {
30        return nullptr;
31    }
32
33    auto createVkSurface = [&info, instProc](VkInstance instance) -> VkSurfaceKHR {
34        static PFN_vkCreateXcbSurfaceKHR createXcbSurfaceKHR = nullptr;
35        if (!createXcbSurfaceKHR) {
36            createXcbSurfaceKHR =
37                    (PFN_vkCreateXcbSurfaceKHR) instProc(instance, "vkCreateXcbSurfaceKHR");
38        }
39
40        VkSurfaceKHR surface;
41
42        VkXcbSurfaceCreateInfoKHR surfaceCreateInfo;
43        memset(&surfaceCreateInfo, 0, sizeof(VkXcbSurfaceCreateInfoKHR));
44        surfaceCreateInfo.sType = VK_STRUCTURE_TYPE_XCB_SURFACE_CREATE_INFO_KHR;
45        surfaceCreateInfo.pNext = nullptr;
46        surfaceCreateInfo.flags = 0;
47        surfaceCreateInfo.connection = XGetXCBConnection(info.fDisplay);
48        surfaceCreateInfo.window = info.fWindow;
49
50        VkResult res = createXcbSurfaceKHR(instance, &surfaceCreateInfo, nullptr, &surface);
51        if (VK_SUCCESS != res) {
52            return VK_NULL_HANDLE;
53        }
54
55        return surface;
56    };
57
58    auto canPresent = [&info, instProc](VkInstance instance, VkPhysicalDevice physDev,
59                              uint32_t queueFamilyIndex) {
60        static PFN_vkGetPhysicalDeviceXcbPresentationSupportKHR
61                                                getPhysicalDeviceXcbPresentationSupportKHR = nullptr;
62        if (!getPhysicalDeviceXcbPresentationSupportKHR) {
63            getPhysicalDeviceXcbPresentationSupportKHR =
64                (PFN_vkGetPhysicalDeviceXcbPresentationSupportKHR)
65                    instProc(instance, "vkGetPhysicalDeviceXcbPresentationSupportKHR");
66        }
67
68
69        Display* display = info.fDisplay;
70        VisualID visualID = info.fVisualInfo->visualid;
71        VkBool32 check = getPhysicalDeviceXcbPresentationSupportKHR(physDev,
72                                                                    queueFamilyIndex,
73                                                                    XGetXCBConnection(display),
74                                                                    visualID);
75        return (VK_FALSE != check);
76    };
77    std::unique_ptr<WindowContext> ctx(
78            new VulkanWindowContext(displayParams, createVkSurface, canPresent, instProc, devProc));
79    if (!ctx->isValid()) {
80        return nullptr;
81    }
82    return ctx;
83}
84
85}  // namespace window_context_factory
86
87}  // namespace sk_app
88