File: base_quad_renderer.h

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// Copyright 2017 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_RENDERERS_BASE_QUAD_RENDERER_H_
#define CHROME_BROWSER_VR_RENDERERS_BASE_QUAD_RENDERER_H_

#include "chrome/browser/vr/renderers/base_renderer.h"
#include "chrome/browser/vr/vr_ui_export.h"

namespace gfx {
class Transform;
}  // namespace gfx

namespace vr {

class BaseQuadRenderer : public BaseRenderer {
 public:
  BaseQuadRenderer(const char* vertex_src, const char* fragment_src);

  BaseQuadRenderer(const BaseQuadRenderer&) = delete;
  BaseQuadRenderer& operator=(const BaseQuadRenderer&) = delete;

  ~BaseQuadRenderer() override;

  VR_UI_EXPORT static void CreateBuffers();
  static int NumQuadIndices();

 protected:
  void PrepareToDraw(GLuint view_proj_matrix_handle,
                     const gfx::Transform& view_proj_matrix);

  static GLuint vertex_buffer_;
  static GLuint index_buffer_;
};

}  // namespace vr

#endif  // CHROME_BROWSER_VR_RENDERERS_BASE_QUAD_RENDERER_H_