kc3-lang/angle/src/libANGLE/renderer/vulkan/SamplerVk.h

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• Hash : b9b5fa55
  Author :
  Date : 2020-08-02T00:17:20
  

  Vulkan: Redo Sampler Serials.
  
  Instead of refreshing sampler serials every time the SamplerVk or
  TextureVk has a state change we can give a VkSampler a unique serial.
  The serial is unique to this VkSampler and repeated state changes
  will fetch the same Serial from the SamplerCache. This allows for
  more cache hits.
  
  We store the the new Serial together with the VkSampler in a
  SamplerHelper class and store references to a SamplerHelper in
  SamplerVk and TextureVk instead of the VkSampler directly.
  
  In a follow-up change we will improve image view caching by also
  improving how we store serials for ImageViews.
  
  Bug: angleproject:4911
  Change-Id: I9168c2700e383bca796cca925b38cfd30132d982
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2333988
  Commit-Queue: Jamie Madill <jmadill@chromium.org>
  Reviewed-by: Tim Van Patten <timvp@google.com>
  Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
  

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• src/libANGLE/renderer/vulkan/SamplerVk.h

• //
  // 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.
  //
  // SamplerVk.h:
  //    Defines the class interface for SamplerVk, implementing SamplerImpl.
  //
  
  #ifndef LIBANGLE_RENDERER_VULKAN_SAMPLERVK_H_
  #define LIBANGLE_RENDERER_VULKAN_SAMPLERVK_H_
  
  #include "libANGLE/renderer/SamplerImpl.h"
  #include "libANGLE/renderer/vulkan/ContextVk.h"
  #include "libANGLE/renderer/vulkan/vk_helpers.h"
  
  namespace rx
  {
  
  class SamplerVk : public SamplerImpl
  {
    public:
      SamplerVk(const gl::SamplerState &state);
      ~SamplerVk() override;
  
      void onDestroy(const gl::Context *context) override;
      angle::Result syncState(const gl::Context *context, const bool dirty) override;
  
      const vk::SamplerHelper &getSampler() const
      {
          ASSERT(mSampler.valid());
          return mSampler.get();
      }
  
    private:
      vk::SamplerBinding mSampler;
  };
  
  }  // namespace rx
  
  #endif  // LIBANGLE_RENDERER_VULKAN_SAMPLERVK_H_
  

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