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// Copyright 2015 The Chromium Authors
// 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.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"
#include "third_party/blink/renderer/modules/webgl/webgl_timer_query_ext.h"
#include "third_party/blink/renderer/platform/heap/garbage_collected.h"
namespace blink {
WebGLExtensionName EXTDisjointTimerQuery::GetName() const {
return kEXTDisjointTimerQueryName;
}
bool EXTDisjointTimerQuery::Supported(WebGLRenderingContextBase* context) {
return context->ExtensionsUtil()->SupportsExtension(
"GL_EXT_disjoint_timer_query");
}
const char* EXTDisjointTimerQuery::ExtensionName() {
return "EXT_disjoint_timer_query";
}
WebGLTimerQueryEXT* EXTDisjointTimerQuery::createQueryEXT() {
WebGLExtensionScopedContext scoped(this);
// Object creation must be infallible even if the context is lost.
return MakeGarbageCollected<WebGLTimerQueryEXT>(scoped.Context());
}
void EXTDisjointTimerQuery::deleteQueryEXT(WebGLTimerQueryEXT* query) {
WebGLExtensionScopedContext scoped(this);
if (!query || scoped.IsLost())
return;
if (!query->Validate(scoped.Context())) {
scoped.Context()->SynthesizeGLError(
GL_INVALID_OPERATION, "delete",
"object does not belong to this context");
return;
}
if (query->MarkedForDeletion()) {
// Specified to be a no-op.
return;
}
if (query == current_elapsed_query_) {
scoped.Context()->ContextGL()->EndQueryEXT(query->Target());
current_elapsed_query_.Clear();
}
query->DeleteObject(scoped.Context()->ContextGL());
}
bool EXTDisjointTimerQuery::isQueryEXT(WebGLTimerQueryEXT* query) {
WebGLExtensionScopedContext scoped(this);
if (!query || scoped.IsLost() || query->MarkedForDeletion() ||
!query->Validate(scoped.Context())) {
return false;
}
return scoped.Context()->ContextGL()->IsQueryEXT(query->Object());
}
void EXTDisjointTimerQuery::beginQueryEXT(GLenum target,
WebGLTimerQueryEXT* query) {
WebGLExtensionScopedContext scoped(this);
if (scoped.IsLost())
return;
if (!scoped.Context()->ValidateWebGLObject("beginQueryEXT", query))
return;
if (target != GL_TIME_ELAPSED_EXT) {
scoped.Context()->SynthesizeGLError(GL_INVALID_ENUM, "beginQueryEXT",
"invalid target");
return;
}
if (current_elapsed_query_) {
scoped.Context()->SynthesizeGLError(GL_INVALID_OPERATION, "beginQueryEXT",
"a query is already active for target");
return;
}
if (query->HasTarget() && query->Target() != target) {
scoped.Context()->SynthesizeGLError(GL_INVALID_OPERATION, "beginQueryEXT",
"target does not match query");
return;
}
scoped.Context()->ContextGL()->BeginQueryEXT(target, query->Object());
query->SetTarget(target);
current_elapsed_query_ = query;
}
void EXTDisjointTimerQuery::endQueryEXT(GLenum target) {
WebGLExtensionScopedContext scoped(this);
if (scoped.IsLost())
return;
if (target != GL_TIME_ELAPSED_EXT) {
scoped.Context()->SynthesizeGLError(GL_INVALID_ENUM, "endQueryEXT",
"invalid target");
return;
}
if (!current_elapsed_query_) {
scoped.Context()->SynthesizeGLError(GL_INVALID_OPERATION, "endQueryEXT",
"no current query");
return;
}
scoped.Context()->ContextGL()->EndQueryEXT(target);
current_elapsed_query_->ResetCachedResult();
current_elapsed_query_.Clear();
}
void EXTDisjointTimerQuery::queryCounterEXT(WebGLTimerQueryEXT* 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->Target() != target) {
scoped.Context()->SynthesizeGLError(GL_INVALID_OPERATION, "queryCounterEXT",
"target does not match query");
return;
}
scoped.Context()->ContextGL()->QueryCounterEXT(query->Object(), target);
query->SetTarget(target);
query->ResetCachedResult();
}
ScriptValue EXTDisjointTimerQuery::getQueryEXT(ScriptState* script_state,
GLenum target,
GLenum pname) {
WebGLExtensionScopedContext scoped(this);
if (scoped.IsLost())
return ScriptValue::CreateNull(script_state->GetIsolate());
if (pname == GL_QUERY_COUNTER_BITS_EXT) {
if (target == GL_TIMESTAMP_EXT || target == GL_TIME_ELAPSED_EXT) {
GLint value = 0;
scoped.Context()->ContextGL()->GetQueryivEXT(target, pname, &value);
return WebGLAny(script_state, value);
}
scoped.Context()->SynthesizeGLError(GL_INVALID_ENUM, "getQuery",
"invalid target/pname combination");
return ScriptValue::CreateNull(script_state->GetIsolate());
}
if (target == GL_TIME_ELAPSED_EXT && pname == GL_CURRENT_QUERY) {
return current_elapsed_query_
? WebGLAny(script_state, current_elapsed_query_)
: ScriptValue::CreateNull(script_state->GetIsolate());
}
if (target == GL_TIMESTAMP_EXT && pname == GL_CURRENT_QUERY) {
return ScriptValue::CreateNull(script_state->GetIsolate());
}
scoped.Context()->SynthesizeGLError(GL_INVALID_ENUM, "getQuery",
"invalid target/pname combination");
return ScriptValue::CreateNull(script_state->GetIsolate());
}
ScriptValue EXTDisjointTimerQuery::getQueryObjectEXT(ScriptState* script_state,
WebGLTimerQueryEXT* query,
GLenum pname) {
WebGLExtensionScopedContext scoped(this);
if (scoped.IsLost())
return ScriptValue::CreateNull(script_state->GetIsolate());
if (!scoped.Context()->ValidateWebGLObject("getQueryObjectEXT", query))
return ScriptValue::CreateNull(script_state->GetIsolate());
if (current_elapsed_query_ == query) {
scoped.Context()->SynthesizeGLError(
GL_INVALID_OPERATION, "getQueryObjectEXT", "query is currently active");
return ScriptValue::CreateNull(script_state->GetIsolate());
}
switch (pname) {
case GL_QUERY_RESULT_EXT: {
query->UpdateCachedResult(scoped.Context()->ContextGL());
return WebGLAny(script_state, query->GetQueryResult());
}
case GL_QUERY_RESULT_AVAILABLE_EXT: {
query->UpdateCachedResult(scoped.Context()->ContextGL());
return WebGLAny(script_state, query->IsQueryResultAvailable());
}
default:
scoped.Context()->SynthesizeGLError(GL_INVALID_ENUM, "getQueryObjectEXT",
"invalid pname");
break;
}
return ScriptValue::CreateNull(script_state->GetIsolate());
}
void EXTDisjointTimerQuery::Trace(Visitor* visitor) const {
visitor->Trace(current_elapsed_query_);
WebGLExtension::Trace(visitor);
}
EXTDisjointTimerQuery::EXTDisjointTimerQuery(WebGLRenderingContextBase* context)
: WebGLExtension(context) {
context->ExtensionsUtil()->EnsureExtensionEnabled(
"GL_EXT_disjoint_timer_query");
}
} // namespace blink
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