61 lines
2 KiB
C++
61 lines
2 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "WebGLSync.h"
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#include "GLContext.h"
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#include "mozilla/dom/WebGL2RenderingContextBinding.h"
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#include "WebGLContext.h"
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namespace mozilla {
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WebGLSync::WebGLSync(WebGLContext* webgl, GLenum condition, GLbitfield flags)
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: WebGLContextBoundObject(webgl),
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mGLName(mContext->gl->fFenceSync(condition, flags)),
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mFenceId(mContext->mNextFenceId) {
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mContext->mNextFenceId += 1;
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}
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WebGLSync::~WebGLSync() {
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if (!mContext) return;
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mContext->gl->fDeleteSync(mGLName);
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}
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ClientWaitSyncResult WebGLSync::ClientWaitSync(const GLbitfield flags,
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const GLuint64 timeout) {
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if (!mContext) return ClientWaitSyncResult::WAIT_FAILED;
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if (IsKnownComplete()) return ClientWaitSyncResult::ALREADY_SIGNALED;
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auto ret = ClientWaitSyncResult::WAIT_FAILED;
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bool newlyComplete = false;
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const auto status = static_cast<ClientWaitSyncResult>(
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mContext->gl->fClientWaitSync(mGLName, 0, 0));
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switch (status) {
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case ClientWaitSyncResult::TIMEOUT_EXPIRED: // Poll() -> false
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case ClientWaitSyncResult::WAIT_FAILED: // Error
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ret = status;
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break;
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case ClientWaitSyncResult::CONDITION_SATISFIED: // Should never happen, but
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// tolerate it.
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case ClientWaitSyncResult::ALREADY_SIGNALED: // Poll() -> true
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newlyComplete = true;
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ret = status;
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break;
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}
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if (newlyComplete) {
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if (mContext->mCompletedFenceId < mFenceId) {
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mContext->mCompletedFenceId = mFenceId;
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}
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MOZ_RELEASE_ASSERT(mOnCompleteTasks);
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for (const auto& task : *mOnCompleteTasks) {
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(*task)();
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}
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mOnCompleteTasks = {};
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}
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return ret;
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}
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} // namespace mozilla
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