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//
// Copyright (c) 2014 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.
//
// RenderbufferD3d.cpp: Implements the RenderbufferD3D class, a specialization of RenderbufferImpl
#include "libANGLE/renderer/d3d/RenderbufferD3D.h"
#include "libANGLE/Image.h"
#include "libANGLE/renderer/d3d/EGLImageD3D.h"
#include "libANGLE/renderer/d3d/RendererD3D.h"
#include "libANGLE/renderer/d3d/RenderTargetD3D.h"
namespace rx
{
RenderbufferD3D::RenderbufferD3D(RendererD3D *renderer)
: mRenderer(renderer), mRenderTarget(nullptr), mImage(nullptr)
{
}
RenderbufferD3D::~RenderbufferD3D()
{
SafeDelete(mRenderTarget);
mImage = nullptr;
}
gl::Error RenderbufferD3D::setStorage(GLenum internalformat, size_t width, size_t height)
{
return setStorageMultisample(0, internalformat, width, height);
}
gl::Error RenderbufferD3D::setStorageMultisample(size_t samples, GLenum internalformat, size_t width, size_t height)
{
// If the renderbuffer parameters are queried, the calling function
// will expect one of the valid renderbuffer formats for use in
// glRenderbufferStorage, but we should create depth and stencil buffers
// as DEPTH24_STENCIL8
GLenum creationFormat = internalformat;
if (internalformat == GL_DEPTH_COMPONENT16 || internalformat == GL_STENCIL_INDEX8)
{
creationFormat = GL_DEPTH24_STENCIL8_OES;
}
// ANGLE_framebuffer_multisample states GL_OUT_OF_MEMORY is generated on a failure to create
// the specified storage.
// Because ES 3.0 already knows the exact number of supported samples, it would already have been
// validated and generated GL_INVALID_VALUE.
const gl::TextureCaps &formatCaps = mRenderer->getRendererTextureCaps().get(creationFormat);
if (samples > formatCaps.getMaxSamples())
{
return gl::Error(GL_OUT_OF_MEMORY, "Renderbuffer format does not support %u samples, %u is the maximum.",
samples, formatCaps.getMaxSamples());
}
RenderTargetD3D *newRT = NULL;
gl::Error error =
mRenderer->createRenderTarget(static_cast<int>(width), static_cast<int>(height),
creationFormat, static_cast<GLsizei>(samples), &newRT);
if (error.isError())
{
return error;
}
SafeDelete(mRenderTarget);
mImage = nullptr;
mRenderTarget = newRT;
return gl::Error(GL_NO_ERROR);
}
gl::Error RenderbufferD3D::setStorageEGLImageTarget(egl::Image *image)
{
mImage = GetImplAs<EGLImageD3D>(image);
SafeDelete(mRenderTarget);
return gl::Error(GL_NO_ERROR);
}
gl::Error RenderbufferD3D::getRenderTarget(RenderTargetD3D **outRenderTarget)
{
if (mImage)
{
return mImage->getRenderTarget(outRenderTarget);
}
else
{
*outRenderTarget = mRenderTarget;
return gl::Error(GL_NO_ERROR);
}
}
gl::Error RenderbufferD3D::getAttachmentRenderTarget(const gl::FramebufferAttachment::Target &target,
FramebufferAttachmentRenderTarget **rtOut)
{
return getRenderTarget(reinterpret_cast<RenderTargetD3D **>(rtOut));
}
}
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