dom/canvas/WebGLRenderbuffer.h

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /* This Source Code Form is subject to the terms of the Mozilla Public
   3  * License, v. 2.0. If a copy of the MPL was not distributed with this
   4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   5
   6 #ifndef WEBGLRENDERBUFFER_H_
   7 #define WEBGLRENDERBUFFER_H_
   8
   9 #include "WebGLBindableName.h"
  10 #include "WebGLObjectModel.h"
  11 #include "WebGLFramebufferAttachable.h"
  12
  13 #include "nsWrapperCache.h"
  14
  15 #include "mozilla/LinkedList.h"
  16
  17 namespace mozilla {
  18
  19 class WebGLRenderbuffer MOZ_FINAL
  20     : public nsWrapperCache
  21     , public WebGLBindableName
  22     , public WebGLRefCountedObject<WebGLRenderbuffer>
  23     , public LinkedListElement<WebGLRenderbuffer>
  24     , public WebGLRectangleObject
  25     , public WebGLContextBoundObject
  26     , public WebGLFramebufferAttachable
  27 {
  28 public:
  29     explicit WebGLRenderbuffer(WebGLContext* context);
  30
  31     void Delete();
  32
  33     bool HasUninitializedImageData() const { return mImageDataStatus == WebGLImageDataStatus::UninitializedImageData; }
  34     void SetImageDataStatus(WebGLImageDataStatus x) {
  35         // there is no way to go from having image data to not having any
  36         MOZ_ASSERT(x != WebGLImageDataStatus::NoImageData ||
  37                    mImageDataStatus == WebGLImageDataStatus::NoImageData);
  38         mImageDataStatus = x;
  39     }
  40
  41     GLenum InternalFormat() const { return mInternalFormat; }
  42     void SetInternalFormat(GLenum aInternalFormat) { mInternalFormat = aInternalFormat; }
  43
  44     GLenum InternalFormatForGL() const { return mInternalFormatForGL; }
  45     void SetInternalFormatForGL(GLenum aInternalFormatForGL) { mInternalFormatForGL = aInternalFormatForGL; }
  46
  47     int64_t MemoryUsage() const;
  48
  49     WebGLContext *GetParentObject() const {
  50         return Context();
  51     }
  52
  53     void BindRenderbuffer() const;
  54     void RenderbufferStorage(GLenum internalFormat, GLsizei width, GLsizei height) const;
  55     void FramebufferRenderbuffer(GLenum attachment) const;
  56     // Only handles a subset of `pname`s.
  57     GLint GetRenderbufferParameter(GLenum target, GLenum pname) const;
  58
  59     virtual JSObject* WrapObject(JSContext *cx) MOZ_OVERRIDE;
  60
  61     NS_INLINE_DECL_CYCLE_COLLECTING_NATIVE_REFCOUNTING(WebGLRenderbuffer)
  62     NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_NATIVE_CLASS(WebGLRenderbuffer)
  63
  64 protected:
  65     ~WebGLRenderbuffer() {
  66         DeleteOnce();
  67     }
  68
  69     GLuint mPrimaryRB;
  70     GLuint mSecondaryRB;
  71     GLenum mInternalFormat;
  72     GLenum mInternalFormatForGL;
  73     WebGLImageDataStatus mImageDataStatus;
  74
  75     friend class WebGLFramebuffer;
  76 };
  77 } // namespace mozilla
  78
  79 #endif