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108 lines
3.5 KiB
108 lines
3.5 KiB
/*
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* Copyright 2019 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "tools/sk_app/DawnWindowContext.h"
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#include "tools/sk_app/unix/WindowContextFactory_unix.h"
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#include "dawn_native/DawnNative.h"
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#include "dawn_native/VulkanBackend.h"
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#include "src/ports/SkOSLibrary.h"
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#include "tools/gpu/vk/VkTestUtils.h"
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#include <vulkan/vulkan.h>
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#include <X11/Xlib-xcb.h>
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using sk_app::window_context_factory::XlibWindowInfo;
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using sk_app::DisplayParams;
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using sk_app::DawnWindowContext;
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namespace sk_app {
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class DawnVulkanWindowContext_xlib : public DawnWindowContext {
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public:
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DawnVulkanWindowContext_xlib(const XlibWindowInfo&, const DisplayParams&);
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~DawnVulkanWindowContext_xlib() override {}
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wgpu::Device onInitializeContext() override;
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void onDestroyContext() override {}
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DawnSwapChainImplementation createSwapChainImplementation(
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int width, int height, const DisplayParams& params) override;
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void onSwapBuffers() override {}
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private:
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Display* fDisplay;
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XWindow fWindow;
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VkSurfaceKHR fVkSurface = nullptr;
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using INHERITED = DawnWindowContext;
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};
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DawnVulkanWindowContext_xlib::DawnVulkanWindowContext_xlib(const XlibWindowInfo& winInfo,
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const DisplayParams& params)
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: INHERITED(params, wgpu::TextureFormat::BGRA8Unorm)
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, fDisplay(winInfo.fDisplay)
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, fWindow(winInfo.fWindow) {
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XWindow root;
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int x, y;
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unsigned int border_width, depth;
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unsigned int width, height;
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XGetGeometry(fDisplay, fWindow, &root, &x, &y, &width, &height, &border_width, &depth);
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this->initializeContext(width, height);
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}
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DawnSwapChainImplementation DawnVulkanWindowContext_xlib::createSwapChainImplementation(
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int width, int height, const DisplayParams& params) {
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return dawn_native::vulkan::CreateNativeSwapChainImpl(fDevice.Get(), fVkSurface);
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}
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wgpu::Device DawnVulkanWindowContext_xlib::onInitializeContext() {
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wgpu::Device device = this->createDevice(dawn_native::BackendType::Vulkan);
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if (!device) {
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return nullptr;
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}
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void *vkLib = SkLoadDynamicLibrary("libvulkan.so.1");
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if (!vkLib) {
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return nullptr;
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}
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VkInstance instance = dawn_native::vulkan::GetInstance(device.Get());
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if (!instance) {
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return nullptr;
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}
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auto createXcbSurfaceKHR =
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reinterpret_cast<PFN_vkCreateXcbSurfaceKHR>(SkGetProcedureAddress(vkLib,
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"vkCreateXcbSurfaceKHR"));
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if (!createXcbSurfaceKHR) {
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printf("couldn't get extensions :(\n");
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return nullptr;
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}
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VkXcbSurfaceCreateInfoKHR surfaceCreateInfo;
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memset(&surfaceCreateInfo, 0, sizeof(VkXcbSurfaceCreateInfoKHR));
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surfaceCreateInfo.sType = VK_STRUCTURE_TYPE_XCB_SURFACE_CREATE_INFO_KHR;
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surfaceCreateInfo.pNext = nullptr;
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surfaceCreateInfo.flags = 0;
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surfaceCreateInfo.connection = XGetXCBConnection(fDisplay);
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surfaceCreateInfo.window = fWindow;
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createXcbSurfaceKHR(instance, &surfaceCreateInfo, nullptr, &fVkSurface);
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return device;
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}
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namespace window_context_factory {
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std::unique_ptr<WindowContext> MakeDawnVulkanForXlib(const XlibWindowInfo& winInfo,
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const DisplayParams& params) {
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std::unique_ptr<WindowContext> ctx(new DawnVulkanWindowContext_xlib(winInfo, params));
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if (!ctx->isValid()) {
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return nullptr;
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}
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return ctx;
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}
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}
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} // namespace sk_app
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