Renderbuffer.cpp

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Author : Jamie Madill
Date : 2017-06-20 12:57:39
Hash : 4928b7ca
Message : Proliferate gl::Context everywhere. This gives the D3D back-end access to the GL state almost anywhere. This uses the onDestroy hook for Textures to push errors up from destructors, although they still don't quite make it to the Context. There are places, such as in EGL object (Context/Surface) destruction, where we end up calling through to GL implementation internals without having access to a gl::Context. We handle this via a proxy Context to a Display, basically a null context, that has access to impl-side state like the Renderer pointer if necessary. It does not have access to the normal GL state. Also Pass gl::Context to RefCountObject::release(). Since we're using destroy() methods now, we should not ever call the destructor directly. BUG=angleproject:1156 Change-Id: Ie4c32ad6bf6caaff0289901f30b5c6bafa2ce259 Reviewed-on: https://chromium-review.googlesource.com/529707 Commit-Queue: Jamie Madill <jmadill@chromium.org> Reviewed-by: Geoff Lang <geofflang@chromium.org>

src/libANGLE/Renderbuffer.cpp

//
// Copyright (c) 2002-2012 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.cpp: Implements the renderer-agnostic gl::Renderbuffer class,
// GL renderbuffer objects and related functionality.
// [OpenGL ES 2.0.24] section 4.4.3 page 108.

#include "libANGLE/Renderbuffer.h"

#include "common/utilities.h"
#include "libANGLE/FramebufferAttachment.h"
#include "libANGLE/Image.h"
#include "libANGLE/Texture.h"
#include "libANGLE/formatutils.h"
#include "libANGLE/renderer/d3d/RenderTargetD3D.h"

namespace gl
{
Renderbuffer::Renderbuffer(rx::RenderbufferImpl *impl, GLuint id)
    : egl::ImageSibling(id),
      mRenderbuffer(impl),
      mLabel(),
      mWidth(0),
      mHeight(0),
      mFormat(GL_RGBA4),
      mSamples(0)
{
}

void Renderbuffer::onDestroy(const Context *context)
{
    auto err = orphanImages(context);
    // TODO(jmadill): Handle error.
    ASSERT(!err.isError());
}

Renderbuffer::~Renderbuffer()
{
    SafeDelete(mRenderbuffer);
}

void Renderbuffer::setLabel(const std::string &label)
{
    mLabel = label;
}

const std::string &Renderbuffer::getLabel() const
{
    return mLabel;
}

Error Renderbuffer::setStorage(const Context *context,
                               GLenum internalformat,
                               size_t width,
                               size_t height)
{
    ANGLE_TRY(orphanImages(context));

    ANGLE_TRY(mRenderbuffer->setStorage(internalformat, width, height));

    mWidth          = static_cast<GLsizei>(width);
    mHeight         = static_cast<GLsizei>(height);
    mFormat         = Format(internalformat);
    mSamples = 0;

    mDirtyChannel.signal();

    return NoError();
}

Error Renderbuffer::setStorageMultisample(const Context *context,
                                          size_t samples,
                                          GLenum internalformat,
                                          size_t width,
                                          size_t height)
{
    ANGLE_TRY(orphanImages(context));

    ANGLE_TRY(mRenderbuffer->setStorageMultisample(samples, internalformat, width, height));

    mWidth          = static_cast<GLsizei>(width);
    mHeight         = static_cast<GLsizei>(height);
    mFormat         = Format(internalformat);
    mSamples        = static_cast<GLsizei>(samples);

    mDirtyChannel.signal();

    return NoError();
}

Error Renderbuffer::setStorageEGLImageTarget(const Context *context, egl::Image *image)
{
    ANGLE_TRY(orphanImages(context));

    ANGLE_TRY(mRenderbuffer->setStorageEGLImageTarget(image));

    setTargetImage(context, image);

    mWidth          = static_cast<GLsizei>(image->getWidth());
    mHeight         = static_cast<GLsizei>(image->getHeight());
    mFormat         = Format(image->getFormat());
    mSamples        = 0;

    mDirtyChannel.signal();

    return NoError();
}

rx::RenderbufferImpl *Renderbuffer::getImplementation() const
{
    ASSERT(mRenderbuffer);
    return mRenderbuffer;
}

GLsizei Renderbuffer::getWidth() const
{
    return mWidth;
}

GLsizei Renderbuffer::getHeight() const
{
    return mHeight;
}

const Format &Renderbuffer::getFormat() const
{
    return mFormat;
}

GLsizei Renderbuffer::getSamples() const
{
    return mSamples;
}

GLuint Renderbuffer::getRedSize() const
{
    return mFormat.info->redBits;
}

GLuint Renderbuffer::getGreenSize() const
{
    return mFormat.info->greenBits;
}

GLuint Renderbuffer::getBlueSize() const
{
    return mFormat.info->blueBits;
}

GLuint Renderbuffer::getAlphaSize() const
{
    return mFormat.info->alphaBits;
}

GLuint Renderbuffer::getDepthSize() const
{
    return mFormat.info->depthBits;
}

GLuint Renderbuffer::getStencilSize() const
{
    return mFormat.info->stencilBits;
}

void Renderbuffer::onAttach(const Context *context)
{
    addRef();
}

void Renderbuffer::onDetach(const Context *context)
{
    release(context);
}

GLuint Renderbuffer::getId() const
{
    return id();
}

Extents Renderbuffer::getAttachmentSize(const gl::ImageIndex & /*imageIndex*/) const
{
    return Extents(mWidth, mHeight, 1);
}
}  // namespace gl

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

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