kc3-lang/angle/src/libANGLE/renderer/gl/FramebufferGL.h

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• Hash : 81370214
  Author :
  Date : 2020-07-29T12:54:02
  

  Pass the Command when sync'ing dirty objects
  
  A new enum is being created that contains command types, which are then
  passed to each dirty object when they are synced. This allows the
  syncState() methods to perform special handling for each command type.
  
  This change is in preparation for optimizing resolving multisample
  images with glBlit, since the render pass needs to be updated before
  it's ended.
  
  Bug: angleproject:4753
  Change-Id: I77701f79418d35cff689e864c8a8b47b6fca0255
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2327335
  Commit-Queue: Tim Van Patten <timvp@google.com>
  Reviewed-by: Charlie Lao <cclao@google.com>
  Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
  

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• src/libANGLE/renderer/gl/FramebufferGL.h

• //
  // Copyright 2015 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.
  //
  
  // FramebufferGL.h: Defines the class interface for FramebufferGL.
  
  #ifndef LIBANGLE_RENDERER_GL_FRAMEBUFFERGL_H_
  #define LIBANGLE_RENDERER_GL_FRAMEBUFFERGL_H_
  
  #include "libANGLE/Context.h"
  #include "libANGLE/renderer/FramebufferImpl.h"
  
  namespace rx
  {
  
  class BlitGL;
  class ClearMultiviewGL;
  class FunctionsGL;
  class StateManagerGL;
  
  class FramebufferGL : public FramebufferImpl
  {
    public:
      FramebufferGL(const gl::FramebufferState &data, GLuint id, bool isDefault, bool emulatedAlpha);
      ~FramebufferGL() override;
  
      void destroy(const gl::Context *context) override;
  
      angle::Result discard(const gl::Context *context,
                            size_t count,
                            const GLenum *attachments) override;
      angle::Result invalidate(const gl::Context *context,
                               size_t count,
                               const GLenum *attachments) override;
      angle::Result invalidateSub(const gl::Context *context,
                                  size_t count,
                                  const GLenum *attachments,
                                  const gl::Rectangle &area) override;
  
      angle::Result clear(const gl::Context *context, GLbitfield mask) override;
      angle::Result clearBufferfv(const gl::Context *context,
                                  GLenum buffer,
                                  GLint drawbuffer,
                                  const GLfloat *values) override;
      angle::Result clearBufferuiv(const gl::Context *context,
                                   GLenum buffer,
                                   GLint drawbuffer,
                                   const GLuint *values) override;
      angle::Result clearBufferiv(const gl::Context *context,
                                  GLenum buffer,
                                  GLint drawbuffer,
                                  const GLint *values) override;
      angle::Result clearBufferfi(const gl::Context *context,
                                  GLenum buffer,
                                  GLint drawbuffer,
                                  GLfloat depth,
                                  GLint stencil) override;
  
      angle::Result readPixels(const gl::Context *context,
                               const gl::Rectangle &area,
                               GLenum format,
                               GLenum type,
                               const gl::PixelPackState &pack,
                               gl::Buffer *packBuffer,
                               void *pixels) override;
  
      angle::Result blit(const gl::Context *context,
                         const gl::Rectangle &sourceArea,
                         const gl::Rectangle &destArea,
                         GLbitfield mask,
                         GLenum filter) override;
  
      angle::Result getSamplePosition(const gl::Context *context,
                                      size_t index,
                                      GLfloat *xy) const override;
  
      // The GL back-end requires a full sync state before we call checkStatus.
      bool shouldSyncStateBeforeCheckStatus() const override;
  
      bool checkStatus(const gl::Context *context) const override;
  
      angle::Result syncState(const gl::Context *context,
                              GLenum binding,
                              const gl::Framebuffer::DirtyBits &dirtyBits,
                              gl::Command command) override;
  
      GLuint getFramebufferID() const;
      bool isDefault() const;
  
      bool hasEmulatedAlphaChannelTextureAttachment() const;
  
    private:
      void syncClearState(const gl::Context *context, GLbitfield mask);
      void syncClearBufferState(const gl::Context *context, GLenum buffer, GLint drawBuffer);
  
      bool modifyInvalidateAttachmentsForEmulatedDefaultFBO(
          size_t count,
          const GLenum *attachments,
          std::vector<GLenum> *modifiedAttachments) const;
  
      angle::Result readPixelsRowByRow(const gl::Context *context,
                                       const gl::Rectangle &area,
                                       GLenum originalReadFormat,
                                       GLenum format,
                                       GLenum type,
                                       const gl::PixelPackState &pack,
                                       GLubyte *pixels) const;
  
      angle::Result readPixelsAllAtOnce(const gl::Context *context,
                                        const gl::Rectangle &area,
                                        GLenum originalReadFormat,
                                        GLenum format,
                                        GLenum type,
                                        const gl::PixelPackState &pack,
                                        GLubyte *pixels,
                                        bool readLastRowSeparately) const;
  
      void maskOutInactiveOutputDrawBuffersImpl(const gl::Context *context,
                                                gl::DrawBufferMask targetAppliedDrawBuffers);
  
      angle::Result adjustSrcDstRegion(const gl::Context *context,
                                       const gl::Rectangle &sourceArea,
                                       const gl::Rectangle &destArea,
                                       gl::Rectangle *newSourceArea,
                                       gl::Rectangle *newDestArea);
  
      angle::Result clipSrcRegion(const gl::Context *context,
                                  const gl::Rectangle &sourceArea,
                                  const gl::Rectangle &destArea,
                                  gl::Rectangle *newSourceArea,
                                  gl::Rectangle *newDestArea);
  
      GLuint mFramebufferID;
      bool mIsDefault;
  
      bool mHasEmulatedAlphaAttachment;
  
      gl::DrawBufferMask mAppliedEnabledDrawBuffers;
  };
  }  // namespace rx
  
  #endif  // LIBANGLE_RENDERER_GL_FRAMEBUFFERGL_H_
  

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