gecko/dom/canvas/WebGL2ContextSync.cpp
2015-03-23 16:20:53 +10:00

134 lines
3.3 KiB
C++

/* -*- Mode: C++; tab-width: 4; 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 "WebGL2Context.h"
#include "GLContext.h"
#include "WebGLSync.h"
using namespace mozilla;
using namespace mozilla::dom;
// -------------------------------------------------------------------------
// Sync objects
already_AddRefed<WebGLSync>
WebGL2Context::FenceSync(GLenum condition, GLbitfield flags)
{
if (IsContextLost())
return nullptr;
if (condition != LOCAL_GL_SYNC_GPU_COMMANDS_COMPLETE) {
ErrorInvalidEnum("fenceSync: condition must be SYNC_GPU_COMMANDS_COMPLETE");
return nullptr;
}
if (flags != 0) {
ErrorInvalidValue("fenceSync: flags must be 0");
return nullptr;
}
MakeContextCurrent();
nsRefPtr<WebGLSync> globj = new WebGLSync(this, condition, flags);
return globj.forget();
}
bool
WebGL2Context::IsSync(WebGLSync* sync)
{
if (IsContextLost())
return false;
return ValidateObjectAllowDeleted("isSync", sync) && !sync->IsDeleted();
}
void
WebGL2Context::DeleteSync(WebGLSync* sync)
{
if (IsContextLost())
return;
if (!ValidateObjectAllowDeletedOrNull("deleteSync", sync))
return;
if (!sync || sync->IsDeleted())
return;
sync->RequestDelete();
}
GLenum
WebGL2Context::ClientWaitSync(WebGLSync* sync, GLbitfield flags, GLuint64 timeout)
{
if (IsContextLost())
return LOCAL_GL_WAIT_FAILED;
if (!sync || sync->IsDeleted()) {
ErrorInvalidValue("clientWaitSync: sync is not a sync object.");
return LOCAL_GL_WAIT_FAILED;
}
if (flags != 0 && flags != LOCAL_GL_SYNC_FLUSH_COMMANDS_BIT) {
ErrorInvalidValue("clientWaitSync: flag must be SYNC_FLUSH_COMMANDS_BIT or 0");
return LOCAL_GL_WAIT_FAILED;
}
MakeContextCurrent();
return gl->fClientWaitSync(sync->mGLName, flags, timeout);
}
void
WebGL2Context::WaitSync(WebGLSync* sync, GLbitfield flags, GLuint64 timeout)
{
if (IsContextLost())
return;
if (!sync || sync->IsDeleted()) {
ErrorInvalidValue("waitSync: sync is not a sync object.");
return;
}
if (flags != 0) {
ErrorInvalidValue("waitSync: flags must be 0");
return;
}
if (timeout != LOCAL_GL_TIMEOUT_IGNORED) {
ErrorInvalidValue("waitSync: timeout must be TIMEOUT_IGNORED");
return;
}
MakeContextCurrent();
gl->fWaitSync(sync->mGLName, flags, timeout);
}
void
WebGL2Context::GetSyncParameter(JSContext*, WebGLSync* sync, GLenum pname, JS::MutableHandleValue retval)
{
if (IsContextLost())
return;
if (!sync || sync->IsDeleted()) {
ErrorInvalidValue("getSyncParameter: sync is not a sync object.");
return;
}
retval.set(JS::NullValue());
GLint result = 0;
switch (pname) {
case LOCAL_GL_OBJECT_TYPE:
case LOCAL_GL_SYNC_STATUS:
case LOCAL_GL_SYNC_CONDITION:
case LOCAL_GL_SYNC_FLAGS:
MakeContextCurrent();
gl->fGetSynciv(sync->mGLName, pname, 1, nullptr, &result);
retval.set(JS::Int32Value(result));
break;
}
ErrorInvalidEnum("getSyncParameter: Invalid pname 0x%04x", pname);
}