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// Copyright 2017 PDFium Authors. All rights reserved.
// 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_FXGE_DIB_CFX_BITMAPCOMPOSER_H_
#define CORE_FXGE_DIB_CFX_BITMAPCOMPOSER_H_
#include <vector>
#include "core/fxcrt/cfx_unowned_ptr.h"
#include "core/fxcrt/fx_coordinates.h"
#include "core/fxcrt/retain_ptr.h"
#include "core/fxge/dib/cfx_scanlinecompositor.h"
#include "core/fxge/dib/ifx_scanlinecomposer.h"
class CFX_ClipRgn;
class CFX_DIBitmap;
class CFX_BitmapComposer : public IFX_ScanlineComposer {
public:
CFX_BitmapComposer();
~CFX_BitmapComposer() override;
void Compose(const RetainPtr<CFX_DIBitmap>& pDest,
const CFX_ClipRgn* pClipRgn,
int bitmap_alpha,
uint32_t mask_color,
const FX_RECT& dest_rect,
bool bVertical,
bool bFlipX,
bool bFlipY,
bool bRgbByteOrder,
int alpha_flag,
int blend_type);
// IFX_ScanlineComposer
bool SetInfo(int width,
int height,
FXDIB_Format src_format,
uint32_t* pSrcPalette) override;
void ComposeScanline(int line,
const uint8_t* scanline,
const uint8_t* scan_extra_alpha) override;
private:
void DoCompose(uint8_t* dest_scan,
const uint8_t* src_scan,
int dest_width,
const uint8_t* clip_scan,
const uint8_t* src_extra_alpha,
uint8_t* dst_extra_alpha);
void ComposeScanlineV(int line,
const uint8_t* scanline,
const uint8_t* scan_extra_alpha);
RetainPtr<CFX_DIBitmap> m_pBitmap;
CFX_UnownedPtr<const CFX_ClipRgn> m_pClipRgn;
FXDIB_Format m_SrcFormat;
int m_DestLeft;
int m_DestTop;
int m_DestWidth;
int m_DestHeight;
int m_BitmapAlpha;
uint32_t m_MaskColor;
RetainPtr<CFX_DIBitmap> m_pClipMask;
CFX_ScanlineCompositor m_Compositor;
bool m_bVertical;
bool m_bFlipX;
bool m_bFlipY;
int m_AlphaFlag;
bool m_bRgbByteOrder;
int m_BlendType;
std::vector<uint8_t> m_pScanlineV;
std::vector<uint8_t> m_pClipScanV;
std::vector<uint8_t> m_pAddClipScan;
std::vector<uint8_t> m_pScanlineAlphaV;
};
#endif // CORE_FXGE_DIB_CFX_BITMAPCOMPOSER_H_
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