| // Copyright 2019 The SwiftShader Authors. All Rights Reserved. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| #include "XlibSurfaceKHR.hpp" |
| |
| #include "Vulkan/VkDeviceMemory.hpp" |
| #include "Vulkan/VkImage.hpp" |
| |
| namespace vk { |
| |
| XlibSurfaceKHR::XlibSurfaceKHR(const VkXlibSurfaceCreateInfoKHR *pCreateInfo, void *mem) : |
| pDisplay(pCreateInfo->dpy), |
| window(pCreateInfo->window) |
| { |
| int screen = DefaultScreen(pDisplay); |
| gc = libX11->XDefaultGC(pDisplay, screen); |
| |
| XVisualInfo xVisual; |
| Status status = libX11->XMatchVisualInfo(pDisplay, screen, 32, TrueColor, &xVisual); |
| bool match = (status != 0 && xVisual.blue_mask ==0xFF); |
| visual = match ? xVisual.visual : libX11->XDefaultVisual(pDisplay, screen); |
| } |
| |
| void XlibSurfaceKHR::destroySurface(const VkAllocationCallbacks *pAllocator) |
| { |
| |
| } |
| |
| size_t XlibSurfaceKHR::ComputeRequiredAllocationSize(const VkXlibSurfaceCreateInfoKHR *pCreateInfo) |
| { |
| return 0; |
| } |
| |
| void XlibSurfaceKHR::getSurfaceCapabilities(VkSurfaceCapabilitiesKHR *pSurfaceCapabilities) const |
| { |
| SurfaceKHR::getSurfaceCapabilities(pSurfaceCapabilities); |
| |
| XWindowAttributes attr; |
| libX11->XGetWindowAttributes(pDisplay, window, &attr); |
| VkExtent2D extent = {static_cast<uint32_t>(attr.width), static_cast<uint32_t>(attr.height)}; |
| |
| pSurfaceCapabilities->currentExtent = extent; |
| pSurfaceCapabilities->minImageExtent = extent; |
| pSurfaceCapabilities->maxImageExtent = extent; |
| } |
| |
| void XlibSurfaceKHR::attachImage(PresentImage* image) |
| { |
| XWindowAttributes attr; |
| libX11->XGetWindowAttributes(pDisplay, window, &attr); |
| |
| VkExtent3D extent = image->getImage()->getMipLevelExtent(VK_IMAGE_ASPECT_COLOR_BIT, 0); |
| |
| int bytes_per_line = image->getImage()->rowPitchBytes(VK_IMAGE_ASPECT_COLOR_BIT, 0); |
| char* buffer = static_cast<char*>(image->getImageMemory()->getOffsetPointer(0)); |
| |
| XImage* xImage = libX11->XCreateImage(pDisplay, visual, attr.depth, ZPixmap, 0, buffer, extent.width, extent.height, 32, bytes_per_line); |
| |
| imageMap[image] = xImage; |
| } |
| |
| void XlibSurfaceKHR::detachImage(PresentImage* image) |
| { |
| auto it = imageMap.find(image); |
| if(it != imageMap.end()) |
| { |
| XImage* xImage = it->second; |
| xImage->data = nullptr; // the XImage does not actually own the buffer |
| XDestroyImage(xImage); |
| imageMap.erase(image); |
| } |
| } |
| |
| VkResult XlibSurfaceKHR::present(PresentImage* image) |
| { |
| auto it = imageMap.find(image); |
| if(it != imageMap.end()) |
| { |
| XImage* xImage = it->second; |
| |
| if(xImage->data) |
| { |
| XWindowAttributes attr; |
| libX11->XGetWindowAttributes(pDisplay, window, &attr); |
| VkExtent2D windowExtent = {static_cast<uint32_t>(attr.width), static_cast<uint32_t>(attr.height)}; |
| VkExtent3D extent = image->getImage()->getMipLevelExtent(VK_IMAGE_ASPECT_COLOR_BIT, 0); |
| |
| if (windowExtent.width != extent.width || windowExtent.height != extent.height) |
| { |
| return VK_ERROR_OUT_OF_DATE_KHR; |
| } |
| |
| libX11->XPutImage(pDisplay, window, gc, xImage, 0, 0, 0, 0, extent.width, extent.height); |
| } |
| } |
| |
| return VK_SUCCESS; |
| } |
| |
| } |