gecko-dev/dom/canvas/WebGLFramebufferAttachable.cpp

52 строки
1.5 KiB
C++

/* -*- Mode: C++; tab-width: 20; 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/. */
#include "WebGLContext.h"
#include "WebGLFramebufferAttachable.h"
#include "WebGLFramebuffer.h"
#include "WebGLRenderbuffer.h"
#include "WebGLTexture.h"
using namespace mozilla;
void
WebGLFramebufferAttachable::AttachTo(WebGLFramebuffer* fb, FBAttachment attachment)
{
MOZ_ASSERT(fb);
if (!fb)
return;
if (mAttachmentPoints.Contains(AttachmentPoint(fb, attachment)))
return; // Already attached. Ignore.
mAttachmentPoints.AppendElement(AttachmentPoint(fb, attachment));
}
void
WebGLFramebufferAttachable::DetachFrom(WebGLFramebuffer* fb, FBAttachment attachment)
{
MOZ_ASSERT(fb);
if (!fb)
return;
const size_t i = mAttachmentPoints.IndexOf(AttachmentPoint(fb, attachment));
if (i == mAttachmentPoints.NoIndex) {
MOZ_ASSERT(false, "Is not attached to FB");
return;
}
mAttachmentPoints.RemoveElementAt(i);
}
void
WebGLFramebufferAttachable::NotifyFBsStatusChanged()
{
for (size_t i = 0; i < mAttachmentPoints.Length(); ++i) {
MOZ_ASSERT(mAttachmentPoints[i].mFB,
"Unexpected null pointer; seems that a WebGLFramebuffer forgot to call DetachFrom before dying");
mAttachmentPoints[i].mFB->NotifyAttachableChanged();
}
}