зеркало из https://github.com/mozilla/gecko-dev.git
150 строки
4.2 KiB
C++
150 строки
4.2 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 "WebGL2Context.h"
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#include "GLContext.h"
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#include "WebGLSync.h"
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#include "mozilla/StaticPrefs_webgl.h"
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namespace mozilla {
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// -------------------------------------------------------------------------
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// Sync objects
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already_AddRefed<WebGLSync> WebGL2Context::FenceSync(GLenum condition,
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GLbitfield flags) {
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const FuncScope funcScope(*this, "fenceSync");
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if (IsContextLost()) return nullptr;
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if (condition != LOCAL_GL_SYNC_GPU_COMMANDS_COMPLETE) {
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ErrorInvalidEnum("condition must be SYNC_GPU_COMMANDS_COMPLETE");
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return nullptr;
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}
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if (flags != 0) {
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ErrorInvalidValue("flags must be 0");
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return nullptr;
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}
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RefPtr<WebGLSync> globj = new WebGLSync(this, condition, flags);
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const auto& availRunnable = EnsureAvailabilityRunnable();
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availRunnable->mSyncs.push_back(globj);
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return globj.forget();
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}
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bool WebGL2Context::IsSync(const WebGLSync* const sync) {
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const FuncScope funcScope(*this, "isSync");
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return ValidateIsObject(sync);
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}
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void WebGL2Context::DeleteSync(WebGLSync* sync) {
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const FuncScope funcScope(*this, "deleteSync");
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if (!ValidateDeleteObject(sync)) return;
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sync->RequestDelete();
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}
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GLenum WebGL2Context::ClientWaitSync(const WebGLSync& sync, GLbitfield flags,
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GLuint64 timeout) {
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const FuncScope funcScope(*this, "clientWaitSync");
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if (IsContextLost()) return LOCAL_GL_WAIT_FAILED;
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if (!ValidateObject("sync", sync)) return LOCAL_GL_WAIT_FAILED;
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if (flags != 0 && flags != LOCAL_GL_SYNC_FLUSH_COMMANDS_BIT) {
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ErrorInvalidValue("`flags` must be SYNC_FLUSH_COMMANDS_BIT or 0.");
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return LOCAL_GL_WAIT_FAILED;
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}
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if (timeout > kMaxClientWaitSyncTimeoutNS) {
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ErrorInvalidOperation("`timeout` must not exceed %s nanoseconds.",
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"MAX_CLIENT_WAIT_TIMEOUT_WEBGL");
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return LOCAL_GL_WAIT_FAILED;
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}
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const bool canBeAvailable =
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(sync.mCanBeAvailable || StaticPrefs::webgl_allow_immediate_queries());
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if (!canBeAvailable) {
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if (timeout) {
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GenerateWarning(
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"Sync object not yet queryable. Please wait for the event"
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" loop.");
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}
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return LOCAL_GL_WAIT_FAILED;
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}
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const auto ret = gl->fClientWaitSync(sync.mGLName, flags, timeout);
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if (ret == LOCAL_GL_CONDITION_SATISFIED || ret == LOCAL_GL_ALREADY_SIGNALED) {
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sync.MarkSignaled();
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}
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return ret;
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}
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void WebGL2Context::WaitSync(const WebGLSync& sync, GLbitfield flags,
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GLint64 timeout) {
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const FuncScope funcScope(*this, "waitSync");
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if (IsContextLost()) return;
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if (!ValidateObject("sync", sync)) return;
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if (flags != 0) {
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ErrorInvalidValue("`flags` must be 0.");
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return;
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}
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if (timeout != -1) {
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ErrorInvalidValue("`timeout` must be TIMEOUT_IGNORED.");
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return;
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}
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gl->fWaitSync(sync.mGLName, flags, LOCAL_GL_TIMEOUT_IGNORED);
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}
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void WebGL2Context::GetSyncParameter(JSContext*, const WebGLSync& sync,
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GLenum pname,
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JS::MutableHandleValue retval) {
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const FuncScope funcScope(*this, "getSyncParameter");
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retval.setNull();
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if (IsContextLost()) return;
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if (!ValidateObject("sync", sync)) return;
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////
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const bool canBeAvailable =
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(sync.mCanBeAvailable || StaticPrefs::webgl_allow_immediate_queries());
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if (!canBeAvailable && pname == LOCAL_GL_SYNC_STATUS) {
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retval.set(JS::Int32Value(LOCAL_GL_UNSIGNALED));
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return;
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}
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GLint result = 0;
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switch (pname) {
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case LOCAL_GL_OBJECT_TYPE:
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case LOCAL_GL_SYNC_STATUS:
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case LOCAL_GL_SYNC_CONDITION:
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case LOCAL_GL_SYNC_FLAGS:
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gl->fGetSynciv(sync.mGLName, pname, 1, nullptr, &result);
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if (pname == LOCAL_GL_SYNC_STATUS && result == LOCAL_GL_SIGNALED) {
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sync.MarkSignaled();
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}
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retval.set(JS::Int32Value(result));
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return;
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default:
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ErrorInvalidEnumInfo("pname", pname);
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return;
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}
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}
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} // namespace mozilla
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