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// Copyright 2015 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.
#ifndef WebGLQuery_h
#define WebGLQuery_h
#include "modules/webgl/WebGLSharedPlatform3DObject.h"
#include "platform/WebTaskRunner.h"
namespace gpu {
namespace gles2 {
class GLES2Interface;
}
}
namespace blink {
class WebGL2RenderingContextBase;
class WebTaskRunner;
class WebGLQuery : public WebGLSharedPlatform3DObject {
DEFINE_WRAPPERTYPEINFO();
public:
~WebGLQuery() override;
static WebGLQuery* create(WebGL2RenderingContextBase*);
void setTarget(GLenum);
bool hasTarget() const { return m_target != 0; }
GLenum getTarget() const { return m_target; }
void resetCachedResult();
void updateCachedResult(gpu::gles2::GLES2Interface*);
bool isQueryResultAvailable();
GLuint getQueryResult();
protected:
explicit WebGLQuery(WebGL2RenderingContextBase*);
void deleteObjectImpl(gpu::gles2::GLES2Interface*) override;
private:
bool isQuery() const override { return true; }
void scheduleAllowAvailabilityUpdate();
void allowAvailabilityUpdate();
GLenum m_target;
bool m_canUpdateAvailability;
bool m_queryResultAvailable;
GLuint m_queryResult;
RefPtr<WebTaskRunner> m_taskRunner;
TaskHandle m_taskHandle;
};
} // namespace blink
#endif // WebGLQuery_h
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