kc3-lang/angle/util/EGLPlatformParameters.h

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• Author : Jamie Madill
  Date : 2021-02-01 17:18:18
  Hash : a8a2a71b
  Message : Vulkan: Support y-flip with no driver support. We can reuse the surface rotation matrix code to do the y-flip. This requires the SPIR-V transformation support. Because not all rotations are encoded into the table we can only support rotation with the driver support for y-flip (currently). Includes some very minimal regression testing. This work is targeted towards supporting vk-portability implementations which are not as up-to-date with Vulkan features. Bug: angleproject:5596 Change-Id: I270fa1efc03267551d28df33ddac9972e1343d60 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2665892 Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Ian Elliott <ianelliott@google.com> Commit-Queue: Jamie Madill <jmadill@chromium.org>

• util/EGLPlatformParameters.h

• //
  // Copyright 2018 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.
  //
  // EGLPlatformParameters: Basic description of an EGL device.
  
  #ifndef UTIL_EGLPLATFORMPARAMETERS_H_
  #define UTIL_EGLPLATFORMPARAMETERS_H_
  
  #include "util/util_gl.h"
  
  #include <tuple>
  
  namespace angle
  {
  struct PlatformMethods;
  
  // The GLES driver type determines what shared object we use to load the GLES entry points.
  // AngleEGL loads from ANGLE's version of libEGL, libGLESv2, and libGLESv1_CM.
  // SystemEGL uses the system copies of libEGL, libGLESv2, and libGLESv1_CM.
  // SystemWGL loads Windows GL with the GLES compatiblity extensions. See util/WGLWindow.h.
  enum class GLESDriverType
  {
      AngleEGL,
      SystemEGL,
      SystemWGL,
  };
  }  // namespace angle
  
  struct EGLPlatformParameters
  {
      EGLPlatformParameters() = default;
  
      explicit EGLPlatformParameters(EGLint renderer) : renderer(renderer) {}
  
      EGLPlatformParameters(EGLint renderer,
                            EGLint majorVersion,
                            EGLint minorVersion,
                            EGLint deviceType)
          : renderer(renderer),
            majorVersion(majorVersion),
            minorVersion(minorVersion),
            deviceType(deviceType)
      {}
  
      EGLPlatformParameters(EGLint renderer,
                            EGLint majorVersion,
                            EGLint minorVersion,
                            EGLint deviceType,
                            EGLint presentPath)
          : renderer(renderer),
            majorVersion(majorVersion),
            minorVersion(minorVersion),
            deviceType(deviceType),
            presentPath(presentPath)
      {}
  
      auto tie() const
      {
          return std::tie(renderer, majorVersion, minorVersion, deviceType, presentPath,
                          debugLayersEnabled, contextVirtualization, transformFeedbackFeature,
                          allocateNonZeroMemoryFeature, emulateCopyTexImage2DFromRenderbuffers,
                          shaderStencilOutputFeature, genMultipleMipsPerPassFeature, platformMethods,
                          robustness, emulatedPrerotation, asyncCommandQueueFeatureVulkan,
                          hasExplicitMemBarrierFeatureMtl, hasCheapRenderPassFeatureMtl,
                          forceBufferGPUStorageFeatureMtl, supportsVulkanViewportFlip);
      }
  
      EGLint renderer                               = EGL_PLATFORM_ANGLE_TYPE_DEFAULT_ANGLE;
      EGLint majorVersion                           = EGL_DONT_CARE;
      EGLint minorVersion                           = EGL_DONT_CARE;
      EGLint deviceType                             = EGL_PLATFORM_ANGLE_DEVICE_TYPE_HARDWARE_ANGLE;
      EGLint presentPath                            = EGL_DONT_CARE;
      EGLint debugLayersEnabled                     = EGL_DONT_CARE;
      EGLint contextVirtualization                  = EGL_DONT_CARE;
      EGLint robustness                             = EGL_DONT_CARE;
      EGLint transformFeedbackFeature               = EGL_DONT_CARE;
      EGLint allocateNonZeroMemoryFeature           = EGL_DONT_CARE;
      EGLint emulateCopyTexImage2DFromRenderbuffers = EGL_DONT_CARE;
      EGLint shaderStencilOutputFeature             = EGL_DONT_CARE;
      EGLint genMultipleMipsPerPassFeature          = EGL_DONT_CARE;
      uint32_t emulatedPrerotation                  = 0;  // Can be 0, 90, 180 or 270
      EGLint asyncCommandQueueFeatureVulkan         = EGL_DONT_CARE;
      EGLint hasExplicitMemBarrierFeatureMtl        = EGL_DONT_CARE;
      EGLint hasCheapRenderPassFeatureMtl           = EGL_DONT_CARE;
      EGLint forceBufferGPUStorageFeatureMtl        = EGL_DONT_CARE;
      EGLint supportsVulkanViewportFlip             = EGL_DONT_CARE;
      angle::PlatformMethods *platformMethods       = nullptr;
  };
  
  inline bool operator<(const EGLPlatformParameters &a, const EGLPlatformParameters &b)
  {
      return a.tie() < b.tie();
  }
  
  inline bool operator==(const EGLPlatformParameters &a, const EGLPlatformParameters &b)
  {
      return a.tie() == b.tie();
  }
  
  inline bool operator!=(const EGLPlatformParameters &a, const EGLPlatformParameters &b)
  {
      return a.tie() != b.tie();
  }
  
  #endif  // UTIL_EGLPLATFORMPARAMETERS_H_