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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 "third_party/blink/renderer/modules/webgl/ext_disjoint_timer_query_webgl2.h"
#include "gpu/command_buffer/client/gles2_interface.h"
#include "third_party/blink/renderer/bindings/modules/v8/webgl_any.h"
#include "third_party/blink/renderer/modules/webgl/webgl_rendering_context_base.h"
namespace blink {
WebGLExtensionName EXTDisjointTimerQueryWebGL2::GetName() const {
return kEXTDisjointTimerQueryWebGL2Name;
}
EXTDisjointTimerQueryWebGL2* EXTDisjointTimerQueryWebGL2::Create(
WebGLRenderingContextBase* context) {
EXTDisjointTimerQueryWebGL2* o =
MakeGarbageCollected<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;
if (!scoped.Context()->ValidateWebGLObject("queryCounterEXT", 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();
}
void EXTDisjointTimerQueryWebGL2::Trace(blink::Visitor* visitor) {
WebGLExtension::Trace(visitor);
}
EXTDisjointTimerQueryWebGL2::EXTDisjointTimerQueryWebGL2(
WebGLRenderingContextBase* context)
: WebGLExtension(context) {
context->ExtensionsUtil()->EnsureExtensionEnabled(
"GL_EXT_disjoint_timer_query_webgl2");
}
} // namespace blink
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