gecko-dev/dom/canvas/WebGL2ContextSync.cpp
Jeff Gilbert e1d0fe64bb Bug 1477756 - Client-side bindings mirror for precise CC, and merge similar codepaths. r=handyman
* Context loss using RAII
* Move Program reflection Client-side

Depends on D54018

Differential Revision: https://phabricator.services.mozilla.com/D54019

--HG--
extra : moz-landing-system : lando
2020-01-08 22:19:16 +00:00

77 lines
2.3 KiB
C++

/* -*- 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 "WebGL2Context.h"
#include "GLContext.h"
#include "WebGLSync.h"
#include "mozilla/StaticPrefs_webgl.h"
namespace mozilla {
// -------------------------------------------------------------------------
// Sync objects
RefPtr<WebGLSync> WebGL2Context::FenceSync(GLenum condition, GLbitfield flags) {
const FuncScope funcScope(*this, "fenceSync");
if (IsContextLost()) return nullptr;
if (condition != LOCAL_GL_SYNC_GPU_COMMANDS_COMPLETE) {
ErrorInvalidEnum("condition must be SYNC_GPU_COMMANDS_COMPLETE");
return nullptr;
}
if (flags != 0) {
ErrorInvalidValue("flags must be 0");
return nullptr;
}
RefPtr<WebGLSync> globj = new WebGLSync(this, condition, flags);
const auto& availRunnable = EnsureAvailabilityRunnable();
availRunnable->mSyncs.push_back(globj);
return globj;
}
GLenum WebGL2Context::ClientWaitSync(const WebGLSync& sync, GLbitfield flags,
GLuint64 timeout) {
const FuncScope funcScope(*this, "clientWaitSync");
if (IsContextLost()) return LOCAL_GL_WAIT_FAILED;
if (!ValidateObject("sync", sync)) return LOCAL_GL_WAIT_FAILED;
if (flags != 0 && flags != LOCAL_GL_SYNC_FLUSH_COMMANDS_BIT) {
ErrorInvalidValue("`flags` must be SYNC_FLUSH_COMMANDS_BIT or 0.");
return LOCAL_GL_WAIT_FAILED;
}
if (timeout > kMaxClientWaitSyncTimeoutNS) {
ErrorInvalidOperation("`timeout` must not exceed %s nanoseconds.",
"MAX_CLIENT_WAIT_TIMEOUT_WEBGL");
return LOCAL_GL_WAIT_FAILED;
}
const bool canBeAvailable =
(sync.mCanBeAvailable || StaticPrefs::webgl_allow_immediate_queries());
if (!canBeAvailable) {
if (timeout) {
GenerateWarning(
"Sync object not yet queryable. Please wait for the event"
" loop.");
}
return LOCAL_GL_WAIT_FAILED;
}
const auto ret = gl->fClientWaitSync(sync.mGLName, flags, timeout);
if (ret == LOCAL_GL_CONDITION_SATISFIED || ret == LOCAL_GL_ALREADY_SIGNALED) {
sync.MarkSignaled();
}
return ret;
}
} // namespace mozilla