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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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 "WebGLSync.h"
#include "GLContext.h"
#include "mozilla/dom/WebGL2RenderingContextBinding.h"
#include "WebGLContext.h"
namespace mozilla {
WebGLSync::WebGLSync(WebGLContext* webgl, GLenum condition, GLbitfield flags)
: WebGLContextBoundObject(webgl),
mGLName(mContext->gl->fFenceSync(condition, flags)),
mFenceId(mContext->mNextFenceId) {
mContext->mNextFenceId += 1;
}
WebGLSync::~WebGLSync() {
if (!mContext) return;
mContext->gl->fDeleteSync(mGLName);
}
ClientWaitSyncResult WebGLSync::ClientWaitSync(const GLbitfield flags,
const GLuint64 timeout) {
if (!mContext) return ClientWaitSyncResult::WAIT_FAILED;
if (IsKnownComplete()) return ClientWaitSyncResult::ALREADY_SIGNALED;
auto ret = ClientWaitSyncResult::WAIT_FAILED;
bool newlyComplete = false;
const auto status = static_cast<ClientWaitSyncResult>(
mContext->gl->fClientWaitSync(mGLName, 0, 0));
switch (status) {
case ClientWaitSyncResult::TIMEOUT_EXPIRED: // Poll() -> false
case ClientWaitSyncResult::WAIT_FAILED: // Error
ret = status;
break;
case ClientWaitSyncResult::CONDITION_SATISFIED: // Should never happen, but
// tolerate it.
case ClientWaitSyncResult::ALREADY_SIGNALED: // Poll() -> true
newlyComplete = true;
ret = status;
break;
}
if (newlyComplete) {
if (mContext->mCompletedFenceId < mFenceId) {
mContext->mCompletedFenceId = mFenceId;
}
MOZ_RELEASE_ASSERT(mOnCompleteTasks);
for (const auto& task : *mOnCompleteTasks) {
(*task)();
}
mOnCompleteTasks = {};
}
return ret;
}
} // namespace mozilla
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