kc3-lang/angle/src/libANGLE/renderer/vulkan/linux/DeviceVkLinux.cpp

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• Hash : 914fe61b
  Author :
  Date : 2024-03-15T13:20:49
  

  Vulkan: Rename RendererVk.* to vk_renderer.*
  
  Done in a separate CL from the move to namespace vk to avoid possible
  rebase-time confusion with the file name change.
  
  Bug: angleproject:8564
  Change-Id: Ibab79029834b88514d4466a7a4c076b1352bc450
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/5370107
  Reviewed-by: Amirali Abdolrashidi <abdolrashidi@google.com>
  Commit-Queue: Amirali Abdolrashidi <abdolrashidi@google.com>
  

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• src/libANGLE/renderer/vulkan/linux/DeviceVkLinux.cpp

• //
  // Copyright 2016 The ANGLE Project Authors. All rights reserved.
  // Use of this source code is governed by a BSD-style license that can be
  // found in the LICENSE file.
  //
  // DeviceVkLinux.cpp:
  //    Implements the class methods for DeviceVkLinux.
  //
  
  #include "libANGLE/renderer/vulkan/linux/DeviceVkLinux.h"
  
  #include <unistd.h>
  
  #include "common/debug.h"
  #include "common/vulkan/vulkan_icd.h"
  #include "libANGLE/Display.h"
  #include "libANGLE/renderer/vulkan/DisplayVk.h"
  #include "libANGLE/renderer/vulkan/vk_renderer.h"
  
  namespace rx
  {
  
  DeviceVkLinux::DeviceVkLinux(DisplayVk *display) : mDisplay(display) {}
  
  egl::Error DeviceVkLinux::initialize()
  {
      vk::Renderer *renderer                         = mDisplay->getRenderer();
      VkPhysicalDeviceDrmPropertiesEXT drmProperties = renderer->getPhysicalDeviceDrmProperties();
  
      // Unfortunately `VkPhysicalDeviceDrmPropertiesEXT` doesn't give us the information about the
      // filesystem layout needed by the EGL version. As ChromeOS/Exo is currently the only user,
      // implement the extension only for Linux where we can reasonably assume `/dev/dri/...` file
      // paths.
      if (drmProperties.hasPrimary)
      {
          char deviceName[50];
          const long long primaryMinor = drmProperties.primaryMinor;
          snprintf(deviceName, sizeof(deviceName), "/dev/dri/card%lld", primaryMinor);
  
          if (access(deviceName, F_OK) != -1)
          {
              mDrmDevice = deviceName;
          }
      }
      if (drmProperties.hasRender)
      {
          char deviceName[50];
          const long long renderMinor = drmProperties.renderMinor;
          snprintf(deviceName, sizeof(deviceName), "/dev/dri/renderD%lld", renderMinor);
  
          if (access(deviceName, F_OK) != -1)
          {
              mDrmRenderNode = deviceName;
          }
      }
  
      if (mDrmDevice.empty() && !mDrmRenderNode.empty())
      {
          mDrmDevice = mDrmRenderNode;
      }
  
      return egl::NoError();
  }
  
  void DeviceVkLinux::generateExtensions(egl::DeviceExtensions *outExtensions) const
  {
      DeviceVk::generateExtensions(outExtensions);
  
      if (!mDrmDevice.empty())
      {
          outExtensions->deviceDrmEXT = true;
      }
      if (!mDrmRenderNode.empty())
      {
          outExtensions->deviceDrmRenderNodeEXT = true;
      }
  }
  
  const std::string DeviceVkLinux::getDeviceString(EGLint name)
  {
      switch (name)
      {
          case EGL_DRM_DEVICE_FILE_EXT:
              return mDrmDevice;
          case EGL_DRM_RENDER_NODE_FILE_EXT:
              return mDrmRenderNode;
          default:
              UNIMPLEMENTED();
              return std::string();
      }
  }
  
  }  // namespace rx
  

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