chromium/chrome/browser/vr/ui_element_renderer.h

// Copyright 2016 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef CHROME_BROWSER_VR_UI_ELEMENT_RENDERER_H_
#define CHROME_BROWSER_VR_UI_ELEMENT_RENDERER_H_

#include <memory>
#include <vector>

#include "base/memory/raw_ptr.h"
#include "chrome/browser/vr/elements/corner_radii.h"
#include "chrome/browser/vr/macros.h"
#include "third_party/skia/include/core/SkColor.h"
#include "ui/gfx/geometry/rect_f.h"
#include "ui/gfx/geometry/size.h"
#include "ui/gfx/geometry/size_f.h"
#include "ui/gfx/geometry/transform.h"

namespace gfx {
class RectF;
class SizeF;
class Transform;
}  // namespace gfx

namespace vr {

class BaseRenderer;
class GridRenderer;
class RadialGradientQuadRenderer;
class TexturedQuadRenderer;

// An instance of this class is passed to UiElements by the UiRenderer in order
// to issue the GL commands for drawing the frame. In some ways, this class is a
// bit of unnecessary abstraction, but by having all the renderers owned by a
// single class, we gain several benefits. For one, we know when the shader
// programs are being changed and this lets us do batching (see the textured
// quad renderer). It also is a central point of contact that can let all
// renderers know to recreate their state in the event of a GL context
// loss/recreation.
class UiElementRenderer { … };

}  // namespace vr

#endif  // CHROME_BROWSER_VR_UI_ELEMENT_RENDERER_H_