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// Copyright 2016 The PDFium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
#ifndef CORE_FPDFAPI_RENDER_CPDF_DEVICEBUFFER_H_
#define CORE_FPDFAPI_RENDER_CPDF_DEVICEBUFFER_H_
#include "core/fxcrt/fx_coordinates.h"
#include "core/fxcrt/retain_ptr.h"
#include "core/fxcrt/unowned_ptr.h"
class CFX_DIBitmap;
class CFX_RenderDevice;
class CPDF_PageObject;
class CPDF_RenderContext;
class CPDF_DeviceBuffer {
public:
static CFX_Matrix CalculateMatrix(CFX_RenderDevice* pDevice,
const FX_RECT& rect,
int max_dpi,
bool scale);
CPDF_DeviceBuffer(CPDF_RenderContext* pContext,
CFX_RenderDevice* pDevice,
const FX_RECT& rect,
const CPDF_PageObject* pObj,
int max_dpi);
~CPDF_DeviceBuffer();
// On success, the returned bitmap will already have its buffer allocated.
// On failure, the returned result is null.
[[nodiscard]] RetainPtr<CFX_DIBitmap> Initialize();
void OutputToDevice();
const CFX_Matrix& GetMatrix() const { return m_Matrix; }
private:
UnownedPtr<CFX_RenderDevice> const m_pDevice;
UnownedPtr<CPDF_RenderContext> const m_pContext;
UnownedPtr<const CPDF_PageObject> const m_pObject;
RetainPtr<CFX_DIBitmap> const m_pBitmap;
const FX_RECT m_Rect;
const CFX_Matrix m_Matrix;
};
#endif // CORE_FPDFAPI_RENDER_CPDF_DEVICEBUFFER_H_