1 files changed, 126 insertions, 0 deletions
diff --git a/gfx/angle/checkout/src/libANGLE/renderer/d3d/RenderbufferD3D.cpp b/gfx/angle/checkout/src/libANGLE/renderer/d3d/RenderbufferD3D.cpp
new file mode 100644
index 0000000000..9114b88f3f
--- /dev/null
+++ b/gfx/angle/checkout/src/libANGLE/renderer/d3d/RenderbufferD3D.cpp
@@ -0,0 +1,126 @@
+//
+// Copyright 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/Context.h"
+#include "libANGLE/Image.h"
+#include "libANGLE/renderer/d3d/ContextD3D.h"
+#include "libANGLE/renderer/d3d/EGLImageD3D.h"
+#include "libANGLE/renderer/d3d/RenderTargetD3D.h"
+#include "libANGLE/renderer/d3d/RendererD3D.h"
+
+namespace rx
+{
+RenderbufferD3D::RenderbufferD3D(const gl::RenderbufferState &state, RendererD3D *renderer)
+    : RenderbufferImpl(state), mRenderer(renderer), mRenderTarget(nullptr), mImage(nullptr)
+{}
+
+RenderbufferD3D::~RenderbufferD3D()
+{
+    SafeDelete(mRenderTarget);
+    mImage = nullptr;
+}
+
+void RenderbufferD3D::onDestroy(const gl::Context *context)
+{
+    SafeDelete(mRenderTarget);
+}
+
+angle::Result RenderbufferD3D::setStorage(const gl::Context *context,
+                                          GLenum internalformat,
+                                          GLsizei width,
+                                          GLsizei height)
+{
+    return setStorageMultisample(context, 0, internalformat, width, height,
+                                 gl::MultisamplingMode::Regular);
+}
+
+angle::Result RenderbufferD3D::setStorageMultisample(const gl::Context *context,
+                                                     GLsizei samples,
+                                                     GLenum internalformat,
+                                                     GLsizei width,
+                                                     GLsizei height,
+                                                     gl::MultisamplingMode mode)
+{
+    // TODO: Correctly differentiate between normal multisampling and render to texture.  In the
+    // latter case, the renderbuffer must be automatically resolved when rendering is broken and
+    // operations performed on it (such as blit, copy etc) should use the resolved image.
+    // http://anglebug.com/3107.
+
+    // 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->getNativeTextureCaps().get(creationFormat);
+    ANGLE_CHECK_GL_ALLOC(GetImplAs<ContextD3D>(context),
+                         static_cast<uint32_t>(samples) <= formatCaps.getMaxSamples());
+
+    RenderTargetD3D *newRT = nullptr;
+    ANGLE_TRY(
+        mRenderer->createRenderTarget(context, width, height, creationFormat, samples, &newRT));
+
+    SafeDelete(mRenderTarget);
+    mImage        = nullptr;
+    mRenderTarget = newRT;
+
+    return angle::Result::Continue;
+}
+
+angle::Result RenderbufferD3D::setStorageEGLImageTarget(const gl::Context *context,
+                                                        egl::Image *image)
+{
+    mImage = GetImplAs<EGLImageD3D>(image);
+    SafeDelete(mRenderTarget);
+
+    return angle::Result::Continue;
+}
+
+angle::Result RenderbufferD3D::getRenderTarget(const gl::Context *context,
+                                               RenderTargetD3D **outRenderTarget)
+{
+    if (mImage)
+    {
+        return mImage->getRenderTarget(context, outRenderTarget);
+    }
+    else
+    {
+        *outRenderTarget = mRenderTarget;
+        return angle::Result::Continue;
+    }
+}
+
+angle::Result RenderbufferD3D::getAttachmentRenderTarget(const gl::Context *context,
+                                                         GLenum binding,
+                                                         const gl::ImageIndex &imageIndex,
+                                                         GLsizei samples,
+                                                         FramebufferAttachmentRenderTarget **rtOut)
+{
+    return getRenderTarget(context, reinterpret_cast<RenderTargetD3D **>(rtOut));
+}
+
+angle::Result RenderbufferD3D::initializeContents(const gl::Context *context,
+                                                  GLenum binding,
+                                                  const gl::ImageIndex &imageIndex)
+{
+    RenderTargetD3D *renderTarget = nullptr;
+    ANGLE_TRY(getRenderTarget(context, &renderTarget));
+    return mRenderer->initRenderTarget(context, renderTarget);
+}
+
+}  // namespace rx