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

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• Author : Jamie Madill
  Date : 2018-10-05 08:17:38
  Hash : e39e8f46
  Message : GL back-end error refactor. Adds explicit error handling to a few scoped state handler classes. Otherwise mostly mechanical refactoring. Bug: angleproject:2753 Change-Id: I2bf969a68f45880902b6e7902297c1340a76a1c4 Reviewed-on: https://chromium-review.googlesource.com/c/1255647 Reviewed-by: Geoff Lang <geofflang@chromium.org> Commit-Queue: Jamie Madill <jmadill@chromium.org>

• 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/renderer/FramebufferImpl.h"
  
  namespace rx
  {
  
  class BlitGL;
  class ClearMultiviewGL;
  class FunctionsGL;
  class StateManagerGL;
  struct WorkaroundsGL;
  
  class FramebufferGL : public FramebufferImpl
  {
    public:
      FramebufferGL(const gl::FramebufferState &data, GLuint id, bool isDefault);
      ~FramebufferGL() override;
  
      void destroy(const gl::Context *context) override;
  
      gl::Error discard(const gl::Context *context, size_t count, const GLenum *attachments) override;
      gl::Error invalidate(const gl::Context *context,
                           size_t count,
                           const GLenum *attachments) override;
      gl::Error invalidateSub(const gl::Context *context,
                              size_t count,
                              const GLenum *attachments,
                              const gl::Rectangle &area) override;
  
      gl::Error clear(const gl::Context *context, GLbitfield mask) override;
      gl::Error clearBufferfv(const gl::Context *context,
                              GLenum buffer,
                              GLint drawbuffer,
                              const GLfloat *values) override;
      gl::Error clearBufferuiv(const gl::Context *context,
                               GLenum buffer,
                               GLint drawbuffer,
                               const GLuint *values) override;
      gl::Error clearBufferiv(const gl::Context *context,
                              GLenum buffer,
                              GLint drawbuffer,
                              const GLint *values) override;
      gl::Error clearBufferfi(const gl::Context *context,
                              GLenum buffer,
                              GLint drawbuffer,
                              GLfloat depth,
                              GLint stencil) override;
  
      GLenum getImplementationColorReadFormat(const gl::Context *context) const override;
      GLenum getImplementationColorReadType(const gl::Context *context) const override;
  
      gl::Error readPixels(const gl::Context *context,
                           const gl::Rectangle &area,
                           GLenum format,
                           GLenum type,
                           void *pixels) override;
  
      gl::Error blit(const gl::Context *context,
                     const gl::Rectangle &sourceArea,
                     const gl::Rectangle &destArea,
                     GLbitfield mask,
                     GLenum filter) override;
  
      gl::Error getSamplePosition(const gl::Context *context,
                                  size_t index,
                                  GLfloat *xy) const override;
  
      bool checkStatus(const gl::Context *context) const override;
  
      gl::Error syncState(const gl::Context *context,
                          const gl::Framebuffer::DirtyBits &dirtyBits) override;
  
      GLuint getFramebufferID() const;
      bool isDefault() const;
  
      void maskOutInactiveOutputDrawBuffers(const gl::Context *context,
                                            GLenum binding,
                                            gl::DrawBufferMask maxSet);
  
    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 format,
                                       GLenum type,
                                       const gl::PixelPackState &pack,
                                       GLubyte *pixels) const;
  
      angle::Result readPixelsAllAtOnce(const gl::Context *context,
                                        const gl::Rectangle &area,
                                        GLenum format,
                                        GLenum type,
                                        const gl::PixelPackState &pack,
                                        GLubyte *pixels,
                                        bool readLastRowSeparately) const;
  
      GLuint mFramebufferID;
      bool mIsDefault;
  
      gl::DrawBufferMask mAppliedEnabledDrawBuffers;
  };
  }
  
  #endif  // LIBANGLE_RENDERER_GL_FRAMEBUFFERGL_H_