1 files changed, 58 insertions, 0 deletions
diff --git a/dom/canvas/WebGLRenderbuffer.h b/dom/canvas/WebGLRenderbuffer.h
new file mode 100644
index 0000000000..9f9d9e212b
--- /dev/null
+++ b/dom/canvas/WebGLRenderbuffer.h
@@ -0,0 +1,58 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef WEBGL_RENDERBUFFER_H_
+#define WEBGL_RENDERBUFFER_H_
+
+#include "CacheInvalidator.h"
+#include "WebGLObjectModel.h"
+#include "WebGLStrongTypes.h"
+#include "WebGLTexture.h"
+
+namespace mozilla {
+namespace webgl {
+struct FormatUsageInfo;
+}
+
+class WebGLRenderbuffer final : public WebGLContextBoundObject,
+                                public WebGLRectangleObject,
+                                public CacheInvalidator {
+  friend class WebGLFramebuffer;
+  friend class WebGLFBAttachPoint;
+
+  MOZ_DECLARE_REFCOUNTED_VIRTUAL_TYPENAME(WebGLRenderbuffer, override)
+
+ public:
+  const GLuint mPrimaryRB;
+
+ protected:
+  const bool mEmulatePackedDepthStencil;
+  GLuint mSecondaryRB;
+  webgl::ImageInfo mImageInfo;
+
+ public:
+  explicit WebGLRenderbuffer(WebGLContext* webgl);
+
+  const auto& ImageInfo() const { return mImageInfo; }
+
+  void RenderbufferStorage(uint32_t samples, GLenum internalFormat,
+                           uint32_t width, uint32_t height);
+  // Only handles a subset of `pname`s.
+  GLint GetRenderbufferParameter(RBParam pname) const;
+
+  auto MemoryUsage() const { return mImageInfo.MemoryUsage(); }
+
+ protected:
+  ~WebGLRenderbuffer() override;
+
+  void DoFramebufferRenderbuffer(GLenum attachment) const;
+  GLenum DoRenderbufferStorage(uint32_t samples,
+                               const webgl::FormatUsageInfo* format,
+                               uint32_t width, uint32_t height);
+};
+
+}  // namespace mozilla
+
+#endif  // WEBGL_RENDERBUFFER_H_