kc3-lang/angle/src/libANGLE/renderer/gl/cgl/PbufferSurfaceCGL.mm

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• Hash : fe54834f
  Author :
  Date : 2017-06-19T11:13:24
  

  Proliferate gl::Context.
  
  This enables a few small things: it will enable making the platform
  a property of the Display rather than a global. The same goes for the
  global logging annotator. Also it ensures all back-end implementations
  have access to the GL / EGL state when available.
  
  Also introduces a smart pointer helper class to angleutils for objects
  that prefer to be destroyed with a context (gl::Context/egl::Display)
  parameter. We were using std::unique_ptr in a few places that would
  not work well with these objects.
  
  BUG=angleproject:1156
  
  Change-Id: I59e288a3d6f766ff8a0f4b48ff3a1fbf7489daba
  Reviewed-on: https://chromium-review.googlesource.com/529706
  Commit-Queue: Jamie Madill <jmadill@chromium.org>
  Reviewed-by: Geoff Lang <geofflang@chromium.org>
  

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• src/libANGLE/renderer/gl/cgl/PbufferSurfaceCGL.mm

• //
  // Copyright (c) 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.
  //
  
  // PBufferSurfaceCGL.cpp: an implementation of egl::Surface for PBuffers for the CLG backend,
  //                      currently implemented using renderbuffers
  
  #include "libANGLE/renderer/gl/cgl/PbufferSurfaceCGL.h"
  
  #include "common/debug.h"
  #include "libANGLE/renderer/gl/FunctionsGL.h"
  #include "libANGLE/renderer/gl/FramebufferGL.h"
  #include "libANGLE/renderer/gl/RendererGL.h"
  #include "libANGLE/renderer/gl/StateManagerGL.h"
  
  namespace rx
  {
  
  PbufferSurfaceCGL::PbufferSurfaceCGL(const egl::SurfaceState &state,
                                       RendererGL *renderer,
                                       EGLint width,
                                       EGLint height,
                                       const FunctionsGL *functions)
      : SurfaceGL(state, renderer),
        mWidth(width),
        mHeight(height),
        mFunctions(functions),
        mStateManager(renderer->getStateManager()),
        mRenderer(renderer),
        mFramebuffer(0),
        mColorRenderbuffer(0),
        mDSRenderbuffer(0)
  {
  }
  
  PbufferSurfaceCGL::~PbufferSurfaceCGL()
  {
      if (mFramebuffer != 0)
      {
          mFunctions->deleteFramebuffers(1, &mFramebuffer);
          mFramebuffer = 0;
      }
  
      if (mColorRenderbuffer != 0)
      {
          mFunctions->deleteRenderbuffers(1, &mColorRenderbuffer);
          mColorRenderbuffer = 0;
      }
      if (mDSRenderbuffer != 0)
      {
          mFunctions->deleteRenderbuffers(1, &mDSRenderbuffer);
          mDSRenderbuffer = 0;
      }
  }
  
  egl::Error PbufferSurfaceCGL::initialize(const egl::Display *display)
  {
      mFunctions->genRenderbuffers(1, &mColorRenderbuffer);
      mStateManager->bindRenderbuffer(GL_RENDERBUFFER, mColorRenderbuffer);
      mFunctions->renderbufferStorage(GL_RENDERBUFFER, GL_RGBA8, mWidth, mHeight);
  
      mFunctions->genRenderbuffers(1, &mDSRenderbuffer);
      mStateManager->bindRenderbuffer(GL_RENDERBUFFER, mDSRenderbuffer);
      mFunctions->renderbufferStorage(GL_RENDERBUFFER, GL_DEPTH24_STENCIL8, mWidth, mHeight);
  
      mFunctions->genFramebuffers(1, &mFramebuffer);
      mStateManager->bindFramebuffer(GL_FRAMEBUFFER, mFramebuffer);
      mFunctions->framebufferRenderbuffer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_RENDERBUFFER,
                                          mColorRenderbuffer);
      mFunctions->framebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_STENCIL_ATTACHMENT,
                                          GL_RENDERBUFFER, mDSRenderbuffer);
  
      return egl::NoError();
  }
  
  egl::Error PbufferSurfaceCGL::makeCurrent()
  {
      return egl::NoError();
  }
  
  egl::Error PbufferSurfaceCGL::swap(const gl::Context *context)
  {
      return egl::NoError();
  }
  
  egl::Error PbufferSurfaceCGL::postSubBuffer(const gl::Context *context,
                                              EGLint x,
                                              EGLint y,
                                              EGLint width,
                                              EGLint height)
  {
      return egl::NoError();
  }
  
  egl::Error PbufferSurfaceCGL::querySurfacePointerANGLE(EGLint attribute, void **value)
  {
      UNIMPLEMENTED();
      return egl::NoError();
  }
  
  egl::Error PbufferSurfaceCGL::bindTexImage(gl::Texture *texture, EGLint buffer)
  {
      UNIMPLEMENTED();
      return egl::NoError();
  }
  
  egl::Error PbufferSurfaceCGL::releaseTexImage(EGLint buffer)
  {
      UNIMPLEMENTED();
      return egl::NoError();
  }
  
  void PbufferSurfaceCGL::setSwapInterval(EGLint interval)
  {
  }
  
  EGLint PbufferSurfaceCGL::getWidth() const
  {
      return mWidth;
  }
  
  EGLint PbufferSurfaceCGL::getHeight() const
  {
      return mHeight;
  }
  
  EGLint PbufferSurfaceCGL::isPostSubBufferSupported() const
  {
      UNIMPLEMENTED();
      return EGL_FALSE;
  }
  
  EGLint PbufferSurfaceCGL::getSwapBehavior() const
  {
      return EGL_BUFFER_PRESERVED;
  }
  
  FramebufferImpl *PbufferSurfaceCGL::createDefaultFramebuffer(const gl::FramebufferState &state)
  {
      // TODO(cwallez) assert it happens only once?
      return new FramebufferGL(mFramebuffer, state, mFunctions, mRenderer->getWorkarounds(),
                               mRenderer->getBlitter(), mStateManager);
  }
  
  }  // namespace rx
  

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