kc3-lang/angle/src/libANGLE/CLBuffer.h

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• Hash : c41ec91d
  Author :
  Date : 2025-07-03T13:34:09
  

  CL/Vulkan: Zero-copy support added for CL Images
  
  - Using syncHost now for HostTransferConfigVisitor
  - Modified the interface of copyImageToFromBuffer
  
  Bug: angleproject:444481344
  Change-Id: Iad315952720fcb23cbc0e58321594cb4d0db71dd
  Signed-off-by: Shyam Manohar <s.manohar@samsung.com>
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/6939059
  Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
  Commit-Queue: Austin Annestrand <a.annestrand@samsung.com>
  Reviewed-by: Geoff Lang <geofflang@chromium.org>
  

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• src/libANGLE/CLBuffer.h

• //
  // Copyright 2021 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.
  //
  // CLBuffer.h: Defines the cl::Buffer class, which is a collection of elements.
  
  #ifndef LIBANGLE_CLBUFFER_H_
  #define LIBANGLE_CLBUFFER_H_
  
  #include "libANGLE/CLMemory.h"
  #include "libANGLE/cl_utils.h"
  
  namespace cl
  {
  
  class Buffer final : public Memory
  {
    public:
      // Front end entry functions, only called from OpenCL entry points
  
      static bool IsValid(const _cl_mem *buffer);
  
      cl_mem createSubBuffer(MemFlags flags,
                             cl_buffer_create_type createType,
                             const void *createInfo);
  
      bool isRegionValid(size_t offset, size_t size) const;
      bool isRegionValid(const cl_buffer_region &region) const;
  
    public:
      ~Buffer() override;
  
      MemObjectType getType() const final;
  
      bool isSubBuffer() const;
      static Buffer *Cast(cl_mem memobj);
  
    private:
      Buffer(Context &context, PropArray &&properties, MemFlags flags, size_t size, void *hostPtr);
  
      Buffer(Buffer &parent, MemFlags flags, size_t offset, size_t size);
  
      friend class Object;
  };
  
  inline bool Buffer::IsValid(const _cl_mem *buffer)
  {
      return Memory::IsValid(buffer) && buffer->cast<Memory>().getType() == MemObjectType::Buffer;
  }
  
  inline bool Buffer::isRegionValid(size_t offset, size_t size) const
  {
      return offset < mSize && offset + size <= mSize;
  }
  
  inline bool Buffer::isRegionValid(const cl_buffer_region &region) const
  {
      return region.origin < mSize && region.origin + region.size <= mSize;
  }
  
  inline MemObjectType Buffer::getType() const
  {
      return MemObjectType::Buffer;
  }
  
  inline bool Buffer::isSubBuffer() const
  {
      return mParent != nullptr;
  }
  
  inline Buffer *Buffer::Cast(cl_mem memobj)
  {
      ASSERT(cl::IsBufferType(Memory::Cast(memobj)->getType()));
      return static_cast<Buffer *>(memobj);
  }
  
  }  // namespace cl
  
  #endif  // LIBANGLE_CLBUFFER_H_
  

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