1 /*
2 * Copyright 2016 Google Inc.
3 *
4 * Use of this source code is governed by a BSD-style license that can be
5 * found in the LICENSE file.
6 */
7 #include "tools/window/unix/GaneshVulkanWindowContext_unix.h"
8
9 #include "src/gpu/ganesh/vk/GrVkUtil.h"
10 #include "tools/gpu/vk/VkTestUtils.h"
11 #include "tools/window/VulkanWindowContext.h"
12 #include "tools/window/unix/XlibWindowInfo.h"
13
14 #include <X11/Xlib-xcb.h>
15
16 namespace skwindow {
17
MakeGaneshVulkanForXlib(const XlibWindowInfo & info,std::unique_ptr<const DisplayParams> displayParams)18 std::unique_ptr<WindowContext> MakeGaneshVulkanForXlib(
19 const XlibWindowInfo& info, std::unique_ptr<const DisplayParams> displayParams) {
20 PFN_vkGetInstanceProcAddr instProc;
21 if (!sk_gpu_test::LoadVkLibraryAndGetProcAddrFuncs(&instProc)) {
22 SkDebugf("Could not load vulkan library\n");
23 return nullptr;
24 }
25
26 auto createVkSurface = [&info, instProc](VkInstance instance) -> VkSurfaceKHR {
27 static PFN_vkCreateXcbSurfaceKHR createXcbSurfaceKHR = nullptr;
28 if (!createXcbSurfaceKHR) {
29 createXcbSurfaceKHR =
30 (PFN_vkCreateXcbSurfaceKHR)instProc(instance, "vkCreateXcbSurfaceKHR");
31 }
32
33 VkSurfaceKHR surface;
34
35 VkXcbSurfaceCreateInfoKHR surfaceCreateInfo;
36 memset(&surfaceCreateInfo, 0, sizeof(VkXcbSurfaceCreateInfoKHR));
37 surfaceCreateInfo.sType = VK_STRUCTURE_TYPE_XCB_SURFACE_CREATE_INFO_KHR;
38 surfaceCreateInfo.pNext = nullptr;
39 surfaceCreateInfo.flags = 0;
40 surfaceCreateInfo.connection = XGetXCBConnection(info.fDisplay);
41 surfaceCreateInfo.window = info.fWindow;
42
43 VkResult res = createXcbSurfaceKHR(instance, &surfaceCreateInfo, nullptr, &surface);
44 if (VK_SUCCESS != res) {
45 return VK_NULL_HANDLE;
46 }
47
48 return surface;
49 };
50
51 auto canPresent = [&info, instProc](VkInstance instance,
52 VkPhysicalDevice physDev,
53 uint32_t queueFamilyIndex) {
54 static PFN_vkGetPhysicalDeviceXcbPresentationSupportKHR
55 getPhysicalDeviceXcbPresentationSupportKHR = nullptr;
56 if (!getPhysicalDeviceXcbPresentationSupportKHR) {
57 getPhysicalDeviceXcbPresentationSupportKHR =
58 (PFN_vkGetPhysicalDeviceXcbPresentationSupportKHR)instProc(
59 instance, "vkGetPhysicalDeviceXcbPresentationSupportKHR");
60 }
61
62 Display* display = info.fDisplay;
63 VisualID visualID =
64 XVisualIDFromVisual(DefaultVisual(info.fDisplay, DefaultScreen(info.fDisplay)));
65 VkBool32 check = getPhysicalDeviceXcbPresentationSupportKHR(
66 physDev, queueFamilyIndex, XGetXCBConnection(display), visualID);
67 return (VK_FALSE != check);
68 };
69 std::unique_ptr<WindowContext> ctx(new internal::VulkanWindowContext(
70 std::move(displayParams), createVkSurface, canPresent, instProc));
71 if (!ctx->isValid()) {
72 return nullptr;
73 }
74 return ctx;
75 }
76
77 } // namespace skwindow
78