gecko-dev/dom/canvas/WebGLRenderbuffer.h

101 строка
3.1 KiB
C++

/* -*- 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 {
class WebGLRenderbuffer final
: public nsWrapperCache
, public WebGLRefCountedObject<WebGLRenderbuffer>
, public LinkedListElement<WebGLRenderbuffer>
, public WebGLRectangleObject
, public WebGLContextBoundObject
, public WebGLFramebufferAttachable
{
public:
explicit WebGLRenderbuffer(WebGLContext* webgl);
void Delete();
bool HasUninitializedImageData() const {
return mImageDataStatus == WebGLImageDataStatus::UninitializedImageData;
}
void SetImageDataStatus(WebGLImageDataStatus x) {
// there is no way to go from having image data to not having any
MOZ_ASSERT(x != WebGLImageDataStatus::NoImageData ||
mImageDataStatus == WebGLImageDataStatus::NoImageData);
mImageDataStatus = x;
}
GLsizei Samples() const { return mSamples; }
void SetSamples(GLsizei samples) { mSamples = samples; }
GLuint PrimaryGLName() const { return mPrimaryRB; }
GLenum InternalFormat() const { return mInternalFormat; }
void SetInternalFormat(GLenum internalFormat) {
mInternalFormat = internalFormat;
}
GLenum InternalFormatForGL() const { return mInternalFormatForGL; }
void SetInternalFormatForGL(GLenum internalFormatForGL) {
mInternalFormatForGL = internalFormatForGL;
}
int64_t MemoryUsage() const;
WebGLContext* GetParentObject() const {
return Context();
}
void BindRenderbuffer() const;
void RenderbufferStorage(GLsizei samples, GLenum internalFormat,
GLsizei width, GLsizei height) const;
void FramebufferRenderbuffer(FBAttachment attachment) const;
// Only handles a subset of `pname`s.
GLint GetRenderbufferParameter(RBTarget target, RBParam pname) const;
virtual JSObject* WrapObject(JSContext* cx, JS::Handle<JSObject*> givenProto) override;
NS_INLINE_DECL_CYCLE_COLLECTING_NATIVE_REFCOUNTING(WebGLRenderbuffer)
NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_NATIVE_CLASS(WebGLRenderbuffer)
protected:
~WebGLRenderbuffer() {
DeleteOnce();
}
GLuint mPrimaryRB;
GLuint mSecondaryRB;
GLenum mInternalFormat;
GLenum mInternalFormatForGL;
WebGLImageDataStatus mImageDataStatus;
GLsizei mSamples;
#ifdef ANDROID
// Bug 1140459: Some drivers (including our test slaves!) don't
// give reasonable answers for IsRenderbuffer, maybe others.
// This shows up on Android 2.3 emulator.
//
// So we track the `is a Renderbuffer` state ourselves.
bool mIsRB;
#endif
friend class WebGLContext;
friend class WebGLFramebuffer;
};
} // namespace mozilla
#endif // WEBGL_RENDERBUFFER_H_