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

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• Hash : b19d17b8
  Author :
  Date : 2022-12-09T14:38:08
  

  Vulkan: Split Serial class into UniqueSerial and Serial
  
  This CL splits Serial class into two classes: UniqueSerial and Serial.
  UniqueSerial supports the object unique serial usage where there is ==
  and != operator but no > or < comparison. UniqueSerial can have invalid
  value, but Serial will not have invalid value (in next CL). The main
  reason is for next CL we can further optimize out the invalid value
  check in the QueueSerial comparison.
  
  Bug: b/262047600
  Change-Id: Ieaed2a0d5546b012a6d63aa18b6006595e4aee1b
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/4093557
  Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
  Commit-Queue: Charlie Lao <cclao@google.com>
  Reviewed-by: Amirali Abdolrashidi <abdolrashidi@google.com>
  

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• src/libANGLE/Renderbuffer.h

• //
  // Copyright 2002 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.
  //
  
  // Renderbuffer.h: Defines the renderer-agnostic container class gl::Renderbuffer.
  // Implements GL renderbuffer objects and related functionality.
  // [OpenGL ES 2.0.24] section 4.4.3 page 108.
  
  #ifndef LIBANGLE_RENDERBUFFER_H_
  #define LIBANGLE_RENDERBUFFER_H_
  
  #include "angle_gl.h"
  #include "common/angleutils.h"
  #include "libANGLE/Debug.h"
  #include "libANGLE/Error.h"
  #include "libANGLE/FramebufferAttachment.h"
  #include "libANGLE/Image.h"
  #include "libANGLE/formatutils.h"
  #include "libANGLE/renderer/RenderbufferImpl.h"
  
  namespace rx
  {
  class GLImplFactory;
  }  // namespace rx
  
  namespace gl
  {
  // A GL renderbuffer object is usually used as a depth or stencil buffer attachment
  // for a framebuffer object. The renderbuffer itself is a distinct GL object, see
  // FramebufferAttachment and Framebuffer for how they are applied to an FBO via an
  // attachment point.
  
  class RenderbufferState final : angle::NonCopyable
  {
    public:
      RenderbufferState();
      ~RenderbufferState();
  
      GLsizei getWidth() const;
      GLsizei getHeight() const;
      const Format &getFormat() const;
      GLsizei getSamples() const;
      MultisamplingMode getMultisamplingMode() const;
      InitState getInitState() const;
      void setProtectedContent(bool hasProtectedContent);
  
    private:
      friend class Renderbuffer;
  
      void update(GLsizei width,
                  GLsizei height,
                  const Format &format,
                  GLsizei samples,
                  MultisamplingMode multisamplingMode,
                  InitState initState);
  
      GLsizei mWidth;
      GLsizei mHeight;
      Format mFormat;
      GLsizei mSamples;
      MultisamplingMode mMultisamplingMode;
      bool mHasProtectedContent;
  
      // For robust resource init.
      InitState mInitState;
  };
  
  class Renderbuffer final : public RefCountObject<RenderbufferID>,
                             public egl::ImageSibling,
                             public LabeledObject
  {
    public:
      Renderbuffer(rx::GLImplFactory *implFactory, RenderbufferID id);
      ~Renderbuffer() override;
  
      void onDestroy(const Context *context) override;
  
      angle::Result setLabel(const Context *context, const std::string &label) override;
      const std::string &getLabel() const override;
  
      angle::Result setStorage(const Context *context,
                               GLenum internalformat,
                               GLsizei width,
                               GLsizei height);
      angle::Result setStorageMultisample(const Context *context,
                                          GLsizei samplesIn,
                                          GLenum internalformat,
                                          GLsizei width,
                                          GLsizei height,
                                          MultisamplingMode mode);
      angle::Result setStorageEGLImageTarget(const Context *context, egl::Image *imageTarget);
  
      angle::Result copyRenderbufferSubData(Context *context,
                                            const gl::Renderbuffer *srcBuffer,
                                            GLint srcLevel,
                                            GLint srcX,
                                            GLint srcY,
                                            GLint srcZ,
                                            GLint dstLevel,
                                            GLint dstX,
                                            GLint dstY,
                                            GLint dstZ,
                                            GLsizei srcWidth,
                                            GLsizei srcHeight,
                                            GLsizei srcDepth);
  
      angle::Result copyTextureSubData(Context *context,
                                       const gl::Texture *srcTexture,
                                       GLint srcLevel,
                                       GLint srcX,
                                       GLint srcY,
                                       GLint srcZ,
                                       GLint dstLevel,
                                       GLint dstX,
                                       GLint dstY,
                                       GLint dstZ,
                                       GLsizei srcWidth,
                                       GLsizei srcHeight,
                                       GLsizei srcDepth);
  
      rx::RenderbufferImpl *getImplementation() const;
  
      GLsizei getWidth() const;
      GLsizei getHeight() const;
      const Format &getFormat() const;
      GLsizei getSamples() const;
      MultisamplingMode getMultisamplingMode() const;
      GLuint getRedSize() const;
      GLuint getGreenSize() const;
      GLuint getBlueSize() const;
      GLuint getAlphaSize() const;
      GLuint getDepthSize() const;
      GLuint getStencilSize() const;
      const RenderbufferState &getState() const;
  
      GLint getMemorySize() const;
  
      // FramebufferAttachmentObject Impl
      Extents getAttachmentSize(const ImageIndex &imageIndex) const override;
      Format getAttachmentFormat(GLenum binding, const ImageIndex &imageIndex) const override;
      GLsizei getAttachmentSamples(const ImageIndex &imageIndex) const override;
      bool isRenderable(const Context *context,
                        GLenum binding,
                        const ImageIndex &imageIndex) const override;
  
      void onAttach(const Context *context, rx::UniqueSerial framebufferSerial) override;
      void onDetach(const Context *context, rx::UniqueSerial framebufferSerial) override;
      GLuint getId() const override;
  
      InitState initState(GLenum binding, const ImageIndex &imageIndex) const override;
      void setInitState(GLenum binding, const ImageIndex &imageIndex, InitState initState) override;
  
      GLenum getImplementationColorReadFormat(const Context *context) const;
      GLenum getImplementationColorReadType(const Context *context) const;
  
      // We pass the pack buffer and state explicitly so they can be overridden during capture.
      angle::Result getRenderbufferImage(const Context *context,
                                         const PixelPackState &packState,
                                         Buffer *packBuffer,
                                         GLenum format,
                                         GLenum type,
                                         void *pixels) const;
  
    private:
      // ObserverInterface implementation.
      void onSubjectStateChange(angle::SubjectIndex index, angle::SubjectMessage message) override;
  
      rx::FramebufferAttachmentObjectImpl *getAttachmentImpl() const override;
  
      RenderbufferState mState;
      std::unique_ptr<rx::RenderbufferImpl> mImplementation;
  
      std::string mLabel;
      angle::ObserverBinding mImplObserverBinding;
  };
  
  }  // namespace gl
  
  #endif  // LIBANGLE_RENDERBUFFER_H_
  

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