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// Copyright 2016 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "modules/webgl/EXTDisjointTimerQueryWebGL2.h"
#include "bindings/modules/v8/WebGLAny.h"
#include "gpu/command_buffer/client/gles2_interface.h"
#include "modules/webgl/WebGLRenderingContextBase.h"
namespace blink {
WebGLExtensionName EXTDisjointTimerQueryWebGL2::name() const {
return EXTDisjointTimerQueryWebGL2Name;
}
EXTDisjointTimerQueryWebGL2* EXTDisjointTimerQueryWebGL2::create(
WebGLRenderingContextBase* context) {
EXTDisjointTimerQueryWebGL2* o = new EXTDisjointTimerQueryWebGL2(context);
return o;
}
bool EXTDisjointTimerQueryWebGL2::supported(
WebGLRenderingContextBase* context) {
return context->extensionsUtil()->supportsExtension(
"GL_EXT_disjoint_timer_query");
}
const char* EXTDisjointTimerQueryWebGL2::extensionName() {
return "EXT_disjoint_timer_query_webgl2";
}
void EXTDisjointTimerQueryWebGL2::queryCounterEXT(WebGLQuery* query,
GLenum target) {
WebGLExtensionScopedContext scoped(this);
if (scoped.isLost())
return;
DCHECK(query);
if (query->isDeleted() ||
!query->validate(scoped.context()->contextGroup(), scoped.context())) {
scoped.context()->synthesizeGLError(GL_INVALID_OPERATION, "queryCounterEXT",
"invalid query");
return;
}
if (target != GL_TIMESTAMP_EXT) {
scoped.context()->synthesizeGLError(GL_INVALID_ENUM, "queryCounterEXT",
"invalid target");
return;
}
if (query->hasTarget() && query->getTarget() != target) {
scoped.context()->synthesizeGLError(GL_INVALID_OPERATION, "queryCounterEXT",
"target does not match query");
return;
}
// Timestamps are disabled in WebGL due to lack of driver support on multiple
// platforms, so we don't actually perform a GL call.
query->setTarget(target);
query->resetCachedResult();
}
DEFINE_TRACE(EXTDisjointTimerQueryWebGL2) {
WebGLExtension::trace(visitor);
}
EXTDisjointTimerQueryWebGL2::EXTDisjointTimerQueryWebGL2(
WebGLRenderingContextBase* context)
: WebGLExtension(context) {
context->extensionsUtil()->ensureExtensionEnabled(
"GL_EXT_disjoint_timer_query_webgl2");
}
} // namespace blink
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