workarounds_vk.h

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// Copyright 2013 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
 
#ifndef FLUTTER_IMPELLER_RENDERER_BACKEND_VULKAN_WORKAROUNDS_VK_H_
#define FLUTTER_IMPELLER_RENDERER_BACKEND_VULKAN_WORKAROUNDS_VK_H_
 
#include "impeller/renderer/backend/vulkan/driver_info_vk.h"
 
namespace impeller {
 
/// A non-exhaustive set of driver specific workarounds.
struct WorkaroundsVK {
  // Adreno GPUs exhibit terrible performance when primitive
  // restart is used. This was confirmed up to Adreno 640 (Pixel 4).
  // Because this feature is fairly marginal, we disable it for _all_
  // Adreno GPUs until we have an upper bound for this bug.
  bool slow_primitive_restart_performance = false;
 
  /// Early 600 series Adreno drivers would deadlock if a command
  /// buffer submission had too much work attached to it, this
  /// requires the renderer to split up command buffers that could
  /// be logically combined.
  bool batch_submit_command_buffer_timeout = false;
 
  /// On older 600 Series Adreno the input attachment / self dependency
  /// cycle for programmable blending is broken.
  ///
  /// Also broken on newer PowerVR.
  bool input_attachment_self_dependency_broken = false;
 
  /// Almost all Adreno series GPU (from 600 up to 800) have problems
  /// generating mipmaps, resulting in corruption of the mip levels.
  /// See:
  ///      * https://github.com/flutter/flutter/issues/160441
  ///      * https://github.com/flutter/flutter/issues/159876
  ///      * https://github.com/flutter/flutter/issues/160587
  bool broken_mipmap_generation = false;
};
 
WorkaroundsVK GetWorkaroundsFromDriverInfo(DriverInfoVK& driver_info);
 
}  // namespace impeller
 
#endif  // FLUTTER_IMPELLER_RENDERER_BACKEND_VULKAN_WORKAROUNDS_VK_H_