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

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• Hash : 62baf0cf
  Author :
  Date : 2016-05-19T13:13:36
  

  Add a shared egl::SurfaceState struct.
  
  This structure can share GL-level properties (immutably) with the
  implementation.
  
  BUG=angleproject:1369
  
  Change-Id: I1e9406f18b6b88bb7db2a8f87b5e6d547cc7ecb1
  Reviewed-on: https://chromium-review.googlesource.com/342061
  Reviewed-by: Corentin Wallez <cwallez@chromium.org>
  Commit-Queue: Jamie Madill <jmadill@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()),
        mWorkarounds(renderer->getWorkarounds()),
        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()
  {
      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::Error(EGL_SUCCESS);
  }
  
  egl::Error PbufferSurfaceCGL::makeCurrent()
  {
      return egl::Error(EGL_SUCCESS);
  }
  
  egl::Error PbufferSurfaceCGL::swap()
  {
      return egl::Error(EGL_SUCCESS);
  }
  
  egl::Error PbufferSurfaceCGL::postSubBuffer(EGLint x, EGLint y, EGLint width, EGLint height)
  {
      return egl::Error(EGL_SUCCESS);
  }
  
  egl::Error PbufferSurfaceCGL::querySurfacePointerANGLE(EGLint attribute, void **value)
  {
      UNIMPLEMENTED();
      return egl::Error(EGL_SUCCESS);
  }
  
  egl::Error PbufferSurfaceCGL::bindTexImage(gl::Texture *texture, EGLint buffer)
  {
      UNIMPLEMENTED();
      return egl::Error(EGL_SUCCESS);
  }
  
  egl::Error PbufferSurfaceCGL::releaseTexImage(EGLint buffer)
  {
      UNIMPLEMENTED();
      return egl::Error(EGL_SUCCESS);
  }
  
  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, mWorkarounds, mStateManager);
  }
  
  }
  

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