gecko-dev/dom/canvas/WebGLVertexArray.h

84 lines
2.2 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_VERTEX_ARRAY_H_
#define WEBGL_VERTEX_ARRAY_H_
#include "nsTArray.h"
#include "mozilla/LinkedList.h"
#include "nsWrapperCache.h"
#include "WebGLBuffer.h"
#include "WebGLObjectModel.h"
#include "WebGLStrongTypes.h"
#include "WebGLVertexAttribData.h"
namespace mozilla {
class WebGLVertexArrayFake;
class WebGLVertexArray
: public nsWrapperCache
, public WebGLRefCountedObject<WebGLVertexArray>
, public LinkedListElement<WebGLVertexArray>
, public WebGLContextBoundObject
{
public:
static WebGLVertexArray* Create(WebGLContext* webgl);
void BindVertexArray() {
// Bind to dummy value to signal that this vertex array has ever been
// bound.
BindVertexArrayImpl();
};
void EnsureAttrib(GLuint index);
bool HasAttrib(GLuint index) const {
return index < mAttribs.Length();
}
bool IsAttribArrayEnabled(GLuint index) const {
return HasAttrib(index) && mAttribs[index].enabled;
}
// Implement parent classes:
void Delete();
bool IsVertexArray();
WebGLContext* GetParentObject() const {
return mContext;
}
virtual JSObject* WrapObject(JSContext* cx, JS::Handle<JSObject*> givenProto) override;
NS_INLINE_DECL_CYCLE_COLLECTING_NATIVE_REFCOUNTING(WebGLVertexArray)
NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_NATIVE_CLASS(WebGLVertexArray)
GLuint GLName() const { return mGLName; }
protected:
explicit WebGLVertexArray(WebGLContext* webgl);
virtual ~WebGLVertexArray() {
MOZ_ASSERT(IsDeleted());
}
virtual void GenVertexArray() = 0;
virtual void BindVertexArrayImpl() = 0;
virtual void DeleteImpl() = 0;
virtual bool IsVertexArrayImpl() = 0;
GLuint mGLName;
nsTArray<WebGLVertexAttribData> mAttribs;
WebGLRefPtr<WebGLBuffer> mElementArrayBuffer;
friend class WebGLContext;
friend class WebGLVertexArrayFake;
friend class WebGL2Context;
};
} // namespace mozilla
#endif // WEBGL_VERTEX_ARRAY_H_