| // Copyright 2014 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_FX_DIB_H_ |
| #define CORE_FXGE_FX_DIB_H_ |
| |
| #include <memory> |
| #include <vector> |
| |
| #include "core/fxcrt/cfx_retain_ptr.h" |
| #include "core/fxcrt/fx_basic.h" |
| #include "core/fxcrt/fx_coordinates.h" |
| #include "third_party/base/stl_util.h" |
| |
| enum FXDIB_Format { |
| FXDIB_Invalid = 0, |
| FXDIB_1bppMask = 0x101, |
| FXDIB_1bppRgb = 0x001, |
| FXDIB_1bppCmyk = 0x401, |
| FXDIB_8bppMask = 0x108, |
| FXDIB_8bppRgb = 0x008, |
| FXDIB_8bppRgba = 0x208, |
| FXDIB_8bppCmyk = 0x408, |
| FXDIB_8bppCmyka = 0x608, |
| FXDIB_Rgb = 0x018, |
| FXDIB_Rgba = 0x218, |
| FXDIB_Rgb32 = 0x020, |
| FXDIB_Argb = 0x220, |
| FXDIB_Cmyk = 0x420, |
| FXDIB_Cmyka = 0x620, |
| }; |
| |
| enum FXDIB_Channel { |
| FXDIB_Red = 1, |
| FXDIB_Green, |
| FXDIB_Blue, |
| FXDIB_Cyan, |
| FXDIB_Magenta, |
| FXDIB_Yellow, |
| FXDIB_Black, |
| FXDIB_Alpha |
| }; |
| |
| #define FXDIB_DOWNSAMPLE 0x04 |
| #define FXDIB_INTERPOL 0x20 |
| #define FXDIB_BICUBIC_INTERPOL 0x80 |
| #define FXDIB_NOSMOOTH 0x100 |
| #define FXDIB_BLEND_NORMAL 0 |
| #define FXDIB_BLEND_MULTIPLY 1 |
| #define FXDIB_BLEND_SCREEN 2 |
| #define FXDIB_BLEND_OVERLAY 3 |
| #define FXDIB_BLEND_DARKEN 4 |
| #define FXDIB_BLEND_LIGHTEN 5 |
| |
| #define FXDIB_BLEND_COLORDODGE 6 |
| #define FXDIB_BLEND_COLORBURN 7 |
| #define FXDIB_BLEND_HARDLIGHT 8 |
| #define FXDIB_BLEND_SOFTLIGHT 9 |
| #define FXDIB_BLEND_DIFFERENCE 10 |
| #define FXDIB_BLEND_EXCLUSION 11 |
| #define FXDIB_BLEND_NONSEPARABLE 21 |
| #define FXDIB_BLEND_HUE 21 |
| #define FXDIB_BLEND_SATURATION 22 |
| #define FXDIB_BLEND_COLOR 23 |
| #define FXDIB_BLEND_LUMINOSITY 24 |
| #define FXDIB_BLEND_UNSUPPORTED -1 |
| typedef uint32_t FX_ARGB; |
| typedef uint32_t FX_COLORREF; |
| typedef uint32_t FX_CMYK; |
| class CFX_ClipRgn; |
| class CFX_DIBSource; |
| class CFX_DIBitmap; |
| class CStretchEngine; |
| |
| #define FXSYS_RGB(r, g, b) ((r) | ((g) << 8) | ((b) << 16)) |
| #define FXSYS_GetRValue(rgb) ((rgb)&0xff) |
| #define FXSYS_GetGValue(rgb) (((rgb) >> 8) & 0xff) |
| #define FXSYS_GetBValue(rgb) (((rgb) >> 16) & 0xff) |
| #define FX_CCOLOR(val) (255 - (val)) |
| #define FXSYS_CMYK(c, m, y, k) (((c) << 24) | ((m) << 16) | ((y) << 8) | (k)) |
| #define FXSYS_GetCValue(cmyk) ((uint8_t)((cmyk) >> 24) & 0xff) |
| #define FXSYS_GetMValue(cmyk) ((uint8_t)((cmyk) >> 16) & 0xff) |
| #define FXSYS_GetYValue(cmyk) ((uint8_t)((cmyk) >> 8) & 0xff) |
| #define FXSYS_GetKValue(cmyk) ((uint8_t)(cmyk)&0xff) |
| void CmykDecode(FX_CMYK cmyk, int& c, int& m, int& y, int& k); |
| inline FX_CMYK CmykEncode(int c, int m, int y, int k) { |
| return (c << 24) | (m << 16) | (y << 8) | k; |
| } |
| void ArgbDecode(FX_ARGB argb, int& a, int& r, int& g, int& b); |
| void ArgbDecode(FX_ARGB argb, int& a, FX_COLORREF& rgb); |
| inline FX_ARGB ArgbEncode(int a, int r, int g, int b) { |
| return (a << 24) | (r << 16) | (g << 8) | b; |
| } |
| FX_ARGB ArgbEncode(int a, FX_COLORREF rgb); |
| #define FXARGB_A(argb) ((uint8_t)((argb) >> 24)) |
| #define FXARGB_R(argb) ((uint8_t)((argb) >> 16)) |
| #define FXARGB_G(argb) ((uint8_t)((argb) >> 8)) |
| #define FXARGB_B(argb) ((uint8_t)(argb)) |
| #define FXARGB_MAKE(a, r, g, b) \ |
| (((uint32_t)(a) << 24) | ((r) << 16) | ((g) << 8) | (b)) |
| #define FXARGB_MUL_ALPHA(argb, alpha) \ |
| (((((argb) >> 24) * (alpha) / 255) << 24) | ((argb)&0xffffff)) |
| #define FXRGB2GRAY(r, g, b) (((b)*11 + (g)*59 + (r)*30) / 100) |
| #define FXCMYK2GRAY(c, m, y, k) \ |
| (((255 - (c)) * (255 - (k)) * 30 + (255 - (m)) * (255 - (k)) * 59 + \ |
| (255 - (y)) * (255 - (k)) * 11) / \ |
| 25500) |
| #define FXDIB_ALPHA_MERGE(backdrop, source, source_alpha) \ |
| (((backdrop) * (255 - (source_alpha)) + (source) * (source_alpha)) / 255) |
| #define FXDIB_ALPHA_UNION(dest, src) ((dest) + (src) - (dest) * (src) / 255) |
| #define FXCMYK_GETDIB(p) \ |
| ((((uint8_t*)(p))[0] << 24 | (((uint8_t*)(p))[1] << 16) | \ |
| (((uint8_t*)(p))[2] << 8) | ((uint8_t*)(p))[3])) |
| #define FXCMYK_SETDIB(p, cmyk) ((uint8_t*)(p))[0] = (uint8_t)((cmyk) >> 24), \ |
| ((uint8_t*)(p))[1] = (uint8_t)((cmyk) >> 16), \ |
| ((uint8_t*)(p))[2] = (uint8_t)((cmyk) >> 8), \ |
| ((uint8_t*)(p))[3] = (uint8_t)(cmyk)) |
| #define FXARGB_GETDIB(p) \ |
| ((((uint8_t*)(p))[0]) | (((uint8_t*)(p))[1] << 8) | \ |
| (((uint8_t*)(p))[2] << 16) | (((uint8_t*)(p))[3] << 24)) |
| #define FXARGB_SETDIB(p, argb) \ |
| ((uint8_t*)(p))[0] = (uint8_t)(argb), \ |
| ((uint8_t*)(p))[1] = (uint8_t)((argb) >> 8), \ |
| ((uint8_t*)(p))[2] = (uint8_t)((argb) >> 16), \ |
| ((uint8_t*)(p))[3] = (uint8_t)((argb) >> 24) |
| #define FXARGB_COPY(dest, src) \ |
| *(uint8_t*)(dest) = *(uint8_t*)(src), \ |
| *((uint8_t*)(dest) + 1) = *((uint8_t*)(src) + 1), \ |
| *((uint8_t*)(dest) + 2) = *((uint8_t*)(src) + 2), \ |
| *((uint8_t*)(dest) + 3) = *((uint8_t*)(src) + 3) |
| #define FXCMYK_COPY(dest, src) \ |
| *(uint8_t*)(dest) = *(uint8_t*)(src), \ |
| *((uint8_t*)(dest) + 1) = *((uint8_t*)(src) + 1), \ |
| *((uint8_t*)(dest) + 2) = *((uint8_t*)(src) + 2), \ |
| *((uint8_t*)(dest) + 3) = *((uint8_t*)(src) + 3) |
| #define FXARGB_SETRGBORDERDIB(p, argb) \ |
| ((uint8_t*)(p))[3] = (uint8_t)(argb >> 24), \ |
| ((uint8_t*)(p))[0] = (uint8_t)((argb) >> 16), \ |
| ((uint8_t*)(p))[1] = (uint8_t)((argb) >> 8), \ |
| ((uint8_t*)(p))[2] = (uint8_t)(argb) |
| #define FXARGB_GETRGBORDERDIB(p) \ |
| (((uint8_t*)(p))[2]) | (((uint8_t*)(p))[1] << 8) | \ |
| (((uint8_t*)(p))[0] << 16) | (((uint8_t*)(p))[3] << 24) |
| #define FXARGB_RGBORDERCOPY(dest, src) \ |
| *((uint8_t*)(dest) + 3) = *((uint8_t*)(src) + 3), \ |
| *(uint8_t*)(dest) = *((uint8_t*)(src) + 2), \ |
| *((uint8_t*)(dest) + 1) = *((uint8_t*)(src) + 1), \ |
| *((uint8_t*)(dest) + 2) = *((uint8_t*)(src)) |
| #define FXARGB_TODIB(argb) (argb) |
| #define FXCMYK_TODIB(cmyk) \ |
| ((uint8_t)((cmyk) >> 24) | ((uint8_t)((cmyk) >> 16)) << 8 | \ |
| ((uint8_t)((cmyk) >> 8)) << 16 | ((uint8_t)(cmyk) << 24)) |
| #define FXARGB_TOBGRORDERDIB(argb) \ |
| ((uint8_t)(argb >> 16) | ((uint8_t)(argb >> 8)) << 8 | \ |
| ((uint8_t)(argb)) << 16 | ((uint8_t)(argb >> 24) << 24)) |
| #define FXGETFLAG_COLORTYPE(flag) (uint8_t)((flag) >> 8) |
| #define FXGETFLAG_ALPHA_FILL(flag) (uint8_t)(flag) |
| |
| bool ConvertBuffer(FXDIB_Format dest_format, |
| uint8_t* dest_buf, |
| int dest_pitch, |
| int width, |
| int height, |
| const CFX_RetainPtr<CFX_DIBSource>& pSrcBitmap, |
| int src_left, |
| int src_top, |
| std::unique_ptr<uint32_t, FxFreeDeleter>* pal); |
| |
| class CFX_DIBSource : public CFX_Retainable { |
| public: |
| ~CFX_DIBSource() override; |
| |
| virtual uint8_t* GetBuffer() const; |
| virtual const uint8_t* GetScanline(int line) const = 0; |
| virtual bool SkipToScanline(int line, IFX_Pause* pPause) const; |
| virtual void DownSampleScanline(int line, |
| uint8_t* dest_scan, |
| int dest_bpp, |
| int dest_width, |
| bool bFlipX, |
| int clip_left, |
| int clip_width) const = 0; |
| |
| int GetWidth() const { return m_Width; } |
| int GetHeight() const { return m_Height; } |
| |
| FXDIB_Format GetFormat() const { |
| return (FXDIB_Format)(m_AlphaFlag * 0x100 + m_bpp); |
| } |
| uint32_t GetPitch() const { return m_Pitch; } |
| uint32_t* GetPalette() const { return m_pPalette.get(); } |
| int GetBPP() const { return m_bpp; } |
| |
| // TODO(thestig): Investigate this. Given the possible values of FXDIB_Format, |
| // it feels as though this should be implemented as !!(m_AlphaFlag & 1) and |
| // IsOpaqueImage() below should never be able to return true. |
| bool IsAlphaMask() const { return m_AlphaFlag == 1; } |
| bool HasAlpha() const { return !!(m_AlphaFlag & 2); } |
| bool IsOpaqueImage() const { return !(m_AlphaFlag & 3); } |
| bool IsCmykImage() const { return !!(m_AlphaFlag & 4); } |
| |
| int GetPaletteSize() const { |
| return IsAlphaMask() ? 0 : (m_bpp == 1 ? 2 : (m_bpp == 8 ? 256 : 0)); |
| } |
| |
| uint32_t GetPaletteEntry(int index) const; |
| |
| void SetPaletteEntry(int index, uint32_t color); |
| uint32_t GetPaletteArgb(int index) const { return GetPaletteEntry(index); } |
| void SetPaletteArgb(int index, uint32_t color) { |
| SetPaletteEntry(index, color); |
| } |
| |
| // Copies into internally-owned palette. |
| void SetPalette(const uint32_t* pSrcPal); |
| |
| CFX_RetainPtr<CFX_DIBitmap> Clone(const FX_RECT* pClip = nullptr) const; |
| CFX_RetainPtr<CFX_DIBitmap> CloneConvert(FXDIB_Format format); |
| CFX_RetainPtr<CFX_DIBitmap> StretchTo(int dest_width, |
| int dest_height, |
| uint32_t flags = 0, |
| const FX_RECT* pClip = nullptr); |
| CFX_RetainPtr<CFX_DIBitmap> TransformTo(const CFX_Matrix* pMatrix, |
| int& left, |
| int& top, |
| uint32_t flags = 0, |
| const FX_RECT* pClip = nullptr); |
| CFX_RetainPtr<CFX_DIBitmap> SwapXY(bool bXFlip, |
| bool bYFlip, |
| const FX_RECT* pClip = nullptr) const; |
| CFX_RetainPtr<CFX_DIBitmap> FlipImage(bool bXFlip, bool bYFlip) const; |
| |
| CFX_RetainPtr<CFX_DIBitmap> CloneAlphaMask( |
| const FX_RECT* pClip = nullptr) const; |
| |
| // Copies into internally-owned mask. |
| bool SetAlphaMask(const CFX_RetainPtr<CFX_DIBSource>& pAlphaMask, |
| const FX_RECT* pClip = nullptr); |
| |
| void GetOverlapRect(int& dest_left, |
| int& dest_top, |
| int& width, |
| int& height, |
| int src_width, |
| int src_height, |
| int& src_left, |
| int& src_top, |
| const CFX_ClipRgn* pClipRgn); |
| |
| #if defined _SKIA_SUPPORT_ || defined _SKIA_SUPPORT_PATHS_ |
| void DebugVerifyBitmapIsPreMultiplied(void* buffer = nullptr) const; |
| #endif |
| |
| CFX_RetainPtr<CFX_DIBitmap> m_pAlphaMask; |
| |
| protected: |
| CFX_DIBSource(); |
| |
| void BuildPalette(); |
| bool BuildAlphaMask(); |
| int FindPalette(uint32_t color) const; |
| void GetPalette(uint32_t* pal, int alpha) const; |
| |
| int m_Width; |
| int m_Height; |
| int m_bpp; |
| uint32_t m_AlphaFlag; |
| uint32_t m_Pitch; |
| // TODO(weili): Use std::vector for this. |
| std::unique_ptr<uint32_t, FxFreeDeleter> m_pPalette; |
| }; |
| |
| class CFX_DIBitmap : public CFX_DIBSource { |
| public: |
| template <typename T, typename... Args> |
| friend CFX_RetainPtr<T> pdfium::MakeRetain(Args&&... args); |
| |
| ~CFX_DIBitmap() override; |
| |
| bool Create(int width, |
| int height, |
| FXDIB_Format format, |
| uint8_t* pBuffer = nullptr, |
| int pitch = 0); |
| |
| bool Copy(const CFX_RetainPtr<CFX_DIBSource>& pSrc); |
| |
| // CFX_DIBSource |
| uint8_t* GetBuffer() const override; |
| const uint8_t* GetScanline(int line) const override; |
| void DownSampleScanline(int line, |
| uint8_t* dest_scan, |
| int dest_bpp, |
| int dest_width, |
| bool bFlipX, |
| int clip_left, |
| int clip_width) const override; |
| |
| void TakeOver(CFX_RetainPtr<CFX_DIBitmap>&& pSrcBitmap); |
| bool ConvertFormat(FXDIB_Format format); |
| void Clear(uint32_t color); |
| |
| uint32_t GetPixel(int x, int y) const; |
| void SetPixel(int x, int y, uint32_t color); |
| |
| bool LoadChannel(FXDIB_Channel destChannel, |
| const CFX_RetainPtr<CFX_DIBSource>& pSrcBitmap, |
| FXDIB_Channel srcChannel); |
| bool LoadChannel(FXDIB_Channel destChannel, int value); |
| |
| bool MultiplyAlpha(int alpha); |
| bool MultiplyAlpha(const CFX_RetainPtr<CFX_DIBSource>& pAlphaMask); |
| |
| bool TransferBitmap(int dest_left, |
| int dest_top, |
| int width, |
| int height, |
| const CFX_RetainPtr<CFX_DIBSource>& pSrcBitmap, |
| int src_left, |
| int src_top); |
| |
| bool CompositeBitmap(int dest_left, |
| int dest_top, |
| int width, |
| int height, |
| const CFX_RetainPtr<CFX_DIBSource>& pSrcBitmap, |
| int src_left, |
| int src_top, |
| int blend_type = FXDIB_BLEND_NORMAL, |
| const CFX_ClipRgn* pClipRgn = nullptr, |
| bool bRgbByteOrder = false, |
| void* pIccTransform = nullptr); |
| |
| bool TransferMask(int dest_left, |
| int dest_top, |
| int width, |
| int height, |
| const CFX_RetainPtr<CFX_DIBSource>& pMask, |
| uint32_t color, |
| int src_left, |
| int src_top, |
| int alpha_flag = 0, |
| void* pIccTransform = nullptr); |
| |
| bool CompositeMask(int dest_left, |
| int dest_top, |
| int width, |
| int height, |
| const CFX_RetainPtr<CFX_DIBSource>& pMask, |
| uint32_t color, |
| int src_left, |
| int src_top, |
| int blend_type = FXDIB_BLEND_NORMAL, |
| const CFX_ClipRgn* pClipRgn = nullptr, |
| bool bRgbByteOrder = false, |
| int alpha_flag = 0, |
| void* pIccTransform = nullptr); |
| |
| bool CompositeRect(int dest_left, |
| int dest_top, |
| int width, |
| int height, |
| uint32_t color, |
| int alpha_flag = 0, |
| void* pIccTransform = nullptr); |
| |
| bool ConvertColorScale(uint32_t forecolor, uint32_t backcolor); |
| |
| #if defined _SKIA_SUPPORT_ || _SKIA_SUPPORT_PATHS_ |
| void PreMultiply(); |
| #endif |
| #if defined _SKIA_SUPPORT_PATHS_ |
| void UnPreMultiply(); |
| #endif |
| |
| protected: |
| CFX_DIBitmap(); |
| CFX_DIBitmap(const CFX_DIBitmap& src); |
| bool GetGrayData(void* pIccTransform = nullptr); |
| |
| #if defined _SKIA_SUPPORT_PATHS_ |
| enum class Format { kCleared, kPreMultiplied, kUnPreMultiplied }; |
| #endif |
| |
| uint8_t* m_pBuffer; |
| #if defined _SKIA_SUPPORT_PATHS_ |
| Format m_nFormat; |
| #endif |
| bool m_bExtBuf; |
| }; |
| |
| class CFX_DIBExtractor { |
| public: |
| explicit CFX_DIBExtractor(const CFX_RetainPtr<CFX_DIBSource>& pSrc); |
| ~CFX_DIBExtractor(); |
| |
| CFX_RetainPtr<CFX_DIBitmap> GetBitmap() { return m_pBitmap; } |
| |
| private: |
| CFX_RetainPtr<CFX_DIBitmap> m_pBitmap; |
| }; |
| |
| class CFX_FilteredDIB : public CFX_DIBSource { |
| public: |
| template <typename T, typename... Args> |
| friend CFX_RetainPtr<T> pdfium::MakeRetain(Args&&... args); |
| |
| ~CFX_FilteredDIB() override; |
| |
| virtual FXDIB_Format GetDestFormat() = 0; |
| virtual uint32_t* GetDestPalette() = 0; |
| virtual void TranslateScanline(const uint8_t* src_buf, |
| std::vector<uint8_t>* dest_buf) const = 0; |
| virtual void TranslateDownSamples(uint8_t* dest_buf, |
| const uint8_t* src_buf, |
| int pixels, |
| int Bpp) const = 0; |
| |
| void LoadSrc(const CFX_RetainPtr<CFX_DIBSource>& pSrc); |
| |
| protected: |
| CFX_FilteredDIB(); |
| |
| // CFX_DIBSource |
| const uint8_t* GetScanline(int line) const override; |
| void DownSampleScanline(int line, |
| uint8_t* dest_scan, |
| int dest_bpp, |
| int dest_width, |
| bool bFlipX, |
| int clip_left, |
| int clip_width) const override; |
| |
| CFX_RetainPtr<CFX_DIBSource> m_pSrc; |
| mutable std::vector<uint8_t> m_Scanline; |
| }; |
| |
| class IFX_ScanlineComposer { |
| public: |
| virtual ~IFX_ScanlineComposer() {} |
| |
| virtual void ComposeScanline(int line, |
| const uint8_t* scanline, |
| const uint8_t* scan_extra_alpha = nullptr) = 0; |
| |
| virtual bool SetInfo(int width, |
| int height, |
| FXDIB_Format src_format, |
| uint32_t* pSrcPalette) = 0; |
| }; |
| |
| class CFX_ScanlineCompositor { |
| public: |
| CFX_ScanlineCompositor(); |
| |
| ~CFX_ScanlineCompositor(); |
| |
| bool Init(FXDIB_Format dest_format, |
| FXDIB_Format src_format, |
| int32_t width, |
| uint32_t* pSrcPalette, |
| uint32_t mask_color, |
| int blend_type, |
| bool bClip, |
| bool bRgbByteOrder = false, |
| int alpha_flag = 0, |
| void* pIccTransform = nullptr); |
| |
| void CompositeRgbBitmapLine(uint8_t* dest_scan, |
| const uint8_t* src_scan, |
| int width, |
| const uint8_t* clip_scan, |
| const uint8_t* src_extra_alpha = nullptr, |
| uint8_t* dst_extra_alpha = nullptr); |
| |
| void CompositePalBitmapLine(uint8_t* dest_scan, |
| const uint8_t* src_scan, |
| int src_left, |
| int width, |
| const uint8_t* clip_scan, |
| const uint8_t* src_extra_alpha = nullptr, |
| uint8_t* dst_extra_alpha = nullptr); |
| |
| void CompositeByteMaskLine(uint8_t* dest_scan, |
| const uint8_t* src_scan, |
| int width, |
| const uint8_t* clip_scan, |
| uint8_t* dst_extra_alpha = nullptr); |
| |
| void CompositeBitMaskLine(uint8_t* dest_scan, |
| const uint8_t* src_scan, |
| int src_left, |
| int width, |
| const uint8_t* clip_scan, |
| uint8_t* dst_extra_alpha = nullptr); |
| |
| protected: |
| int m_Transparency; |
| FXDIB_Format m_SrcFormat, m_DestFormat; |
| uint32_t* m_pSrcPalette; |
| |
| int m_MaskAlpha, m_MaskRed, m_MaskGreen, m_MaskBlue, m_MaskBlack; |
| int m_BlendType; |
| void* m_pIccTransform; |
| uint8_t* m_pCacheScanline; |
| int m_CacheSize; |
| bool m_bRgbByteOrder; |
| }; |
| |
| class CFX_BitmapComposer : public IFX_ScanlineComposer { |
| public: |
| CFX_BitmapComposer(); |
| ~CFX_BitmapComposer() override; |
| |
| void Compose(const CFX_RetainPtr<CFX_DIBitmap>& pDest, |
| const CFX_ClipRgn* pClipRgn, |
| int bitmap_alpha, |
| uint32_t mask_color, |
| FX_RECT& dest_rect, |
| bool bVertical, |
| bool bFlipX, |
| bool bFlipY, |
| bool bRgbByteOrder = false, |
| int alpha_flag = 0, |
| void* pIccTransform = nullptr, |
| int blend_type = FXDIB_BLEND_NORMAL); |
| |
| // 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; |
| |
| protected: |
| 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 = nullptr, |
| uint8_t* dst_extra_alpha = nullptr); |
| void ComposeScanlineV(int line, |
| const uint8_t* scanline, |
| const uint8_t* scan_extra_alpha = nullptr); |
| |
| CFX_RetainPtr<CFX_DIBitmap> m_pBitmap; |
| 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; |
| CFX_RetainPtr<CFX_DIBitmap> m_pClipMask; |
| CFX_ScanlineCompositor m_Compositor; |
| bool m_bVertical; |
| bool m_bFlipX; |
| bool m_bFlipY; |
| int m_AlphaFlag; |
| void* m_pIccTransform; |
| bool m_bRgbByteOrder; |
| int m_BlendType; |
| uint8_t* m_pScanlineV; |
| uint8_t* m_pClipScanV; |
| uint8_t* m_pAddClipScan; |
| uint8_t* m_pScanlineAlphaV; |
| }; |
| |
| class CFX_BitmapStorer : public IFX_ScanlineComposer { |
| public: |
| CFX_BitmapStorer(); |
| ~CFX_BitmapStorer() override; |
| |
| // IFX_ScanlineComposer |
| void ComposeScanline(int line, |
| const uint8_t* scanline, |
| const uint8_t* scan_extra_alpha) override; |
| bool SetInfo(int width, |
| int height, |
| FXDIB_Format src_format, |
| uint32_t* pSrcPalette) override; |
| |
| CFX_RetainPtr<CFX_DIBitmap> GetBitmap() { return m_pBitmap; } |
| CFX_RetainPtr<CFX_DIBitmap> Detach(); |
| void Replace(CFX_RetainPtr<CFX_DIBitmap>&& pBitmap); |
| |
| private: |
| CFX_RetainPtr<CFX_DIBitmap> m_pBitmap; |
| }; |
| |
| class CFX_ImageStretcher { |
| public: |
| CFX_ImageStretcher(IFX_ScanlineComposer* pDest, |
| const CFX_RetainPtr<CFX_DIBSource>& pSource, |
| int dest_width, |
| int dest_height, |
| const FX_RECT& bitmap_rect, |
| uint32_t flags); |
| ~CFX_ImageStretcher(); |
| |
| bool Start(); |
| bool Continue(IFX_Pause* pPause); |
| |
| CFX_RetainPtr<CFX_DIBSource> source() { return m_pSource; } |
| |
| private: |
| bool StartQuickStretch(); |
| bool StartStretch(); |
| bool ContinueQuickStretch(IFX_Pause* pPause); |
| bool ContinueStretch(IFX_Pause* pPause); |
| |
| IFX_ScanlineComposer* const m_pDest; |
| CFX_RetainPtr<CFX_DIBSource> m_pSource; |
| std::unique_ptr<CStretchEngine> m_pStretchEngine; |
| std::unique_ptr<uint8_t, FxFreeDeleter> m_pScanline; |
| std::unique_ptr<uint8_t, FxFreeDeleter> m_pMaskScanline; |
| const uint32_t m_Flags; |
| bool m_bFlipX; |
| bool m_bFlipY; |
| int m_DestWidth; |
| int m_DestHeight; |
| FX_RECT m_ClipRect; |
| const FXDIB_Format m_DestFormat; |
| const int m_DestBPP; |
| int m_LineIndex; |
| }; |
| |
| class CFX_ImageTransformer { |
| public: |
| CFX_ImageTransformer(const CFX_RetainPtr<CFX_DIBSource>& pSrc, |
| const CFX_Matrix* pMatrix, |
| int flags, |
| const FX_RECT* pClip); |
| ~CFX_ImageTransformer(); |
| |
| bool Start(); |
| bool Continue(IFX_Pause* pPause); |
| |
| const FX_RECT& result() const { return m_result; } |
| CFX_RetainPtr<CFX_DIBitmap> DetachBitmap(); |
| |
| private: |
| const CFX_RetainPtr<CFX_DIBSource> m_pSrc; |
| const CFX_Matrix* const m_pMatrix; |
| const FX_RECT* const m_pClip; |
| FX_RECT m_StretchClip; |
| FX_RECT m_result; |
| CFX_Matrix m_dest2stretch; |
| std::unique_ptr<CFX_ImageStretcher> m_Stretcher; |
| CFX_BitmapStorer m_Storer; |
| const uint32_t m_Flags; |
| int m_Status; |
| }; |
| |
| class CFX_ImageRenderer { |
| public: |
| CFX_ImageRenderer(); |
| ~CFX_ImageRenderer(); |
| |
| bool Start(const CFX_RetainPtr<CFX_DIBitmap>& pDevice, |
| const CFX_ClipRgn* pClipRgn, |
| const CFX_RetainPtr<CFX_DIBSource>& pSource, |
| int bitmap_alpha, |
| uint32_t mask_color, |
| const CFX_Matrix* pMatrix, |
| uint32_t dib_flags, |
| bool bRgbByteOrder = false, |
| int alpha_flag = 0, |
| void* pIccTransform = nullptr, |
| int blend_type = FXDIB_BLEND_NORMAL); |
| |
| bool Continue(IFX_Pause* pPause); |
| |
| protected: |
| CFX_RetainPtr<CFX_DIBitmap> m_pDevice; |
| const CFX_ClipRgn* m_pClipRgn; |
| int m_BitmapAlpha; |
| uint32_t m_MaskColor; |
| CFX_Matrix m_Matrix; |
| std::unique_ptr<CFX_ImageTransformer> m_pTransformer; |
| std::unique_ptr<CFX_ImageStretcher> m_Stretcher; |
| CFX_BitmapComposer m_Composer; |
| int m_Status; |
| FX_RECT m_ClipBox; |
| uint32_t m_Flags; |
| int m_AlphaFlag; |
| void* m_pIccTransform; |
| bool m_bRgbByteOrder; |
| int m_BlendType; |
| }; |
| |
| #endif // CORE_FXGE_FX_DIB_H_ |