Add m-esr52 at 52.6.0

1 files changed, 94 insertions, 0 deletions

diff --git a/dom/canvas/WebGLRenderbuffer.h b/dom/canvas/WebGLRenderbuffer.h
new file mode 100644
index 000000000..d16110375
--- /dev/null
+++ b/dom/canvas/WebGLRenderbuffer.h
@@ -0,0 +1,94 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* 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 "mozilla/LinkedList.h"
+#include "nsWrapperCache.h"
+
+#include "WebGLFramebufferAttachable.h"
+#include "WebGLObjectModel.h"
+#include "WebGLStrongTypes.h"
+
+namespace mozilla {
+namespace webgl {
+struct FormatUsageInfo;
+}
+
+class WebGLRenderbuffer final
+    : public nsWrapperCache
+    , public WebGLRefCountedObject<WebGLRenderbuffer>
+    , public LinkedListElement<WebGLRenderbuffer>
+    , public WebGLRectangleObject
+    , public WebGLFramebufferAttachable
+{
+    friend class WebGLContext;
+    friend class WebGLFramebuffer;
+    friend class WebGLFBAttachPoint;
+
+public:
+    const GLuint mPrimaryRB;
+protected:
+    const bool mEmulatePackedDepthStencil;
+    GLuint mSecondaryRB;
+    const webgl::FormatUsageInfo* mFormat;
+    GLsizei mSamples;
+
+    WebGLImageDataStatus mImageDataStatus;
+
+    bool mHasBeenBound;
+
+public:
+    NS_INLINE_DECL_CYCLE_COLLECTING_NATIVE_REFCOUNTING(WebGLRenderbuffer)
+    NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_NATIVE_CLASS(WebGLRenderbuffer)
+
+    explicit WebGLRenderbuffer(WebGLContext* webgl);
+
+    void Delete();
+
+    bool HasUninitializedImageData() const {
+        MOZ_ASSERT(mImageDataStatus != WebGLImageDataStatus::NoImageData);
+        return mImageDataStatus == WebGLImageDataStatus::UninitializedImageData;
+    }
+
+    bool IsDefined() const {
+        if (!mFormat) {
+            MOZ_ASSERT(!mWidth && !mHeight);
+            return false;
+        }
+        return true;
+    }
+
+    GLsizei Samples() const { return mSamples; }
+
+    const webgl::FormatUsageInfo* Format() const { return mFormat; }
+
+    int64_t MemoryUsage() const;
+
+    WebGLContext* GetParentObject() const {
+        return mContext;
+    }
+
+    void RenderbufferStorage(const char* funcName, uint32_t samples,
+                             GLenum internalFormat, uint32_t width, uint32_t height);
+    // Only handles a subset of `pname`s.
+    GLint GetRenderbufferParameter(RBTarget target, RBParam pname) const;
+
+    virtual JSObject* WrapObject(JSContext* cx, JS::Handle<JSObject*> givenProto) override;
+
+protected:
+    ~WebGLRenderbuffer() {
+        DeleteOnce();
+    }
+
+    void DoFramebufferRenderbuffer(FBTarget target, GLenum attachment) const;
+    GLenum DoRenderbufferStorage(uint32_t samples, const webgl::FormatUsageInfo* format,
+                                 uint32_t width, uint32_t height);
+};
+
+} // namespace mozilla
+
+#endif // WEBGL_RENDERBUFFER_H_