diff options
| author | John Abd-El-Malek <jabdelmalek@google.com> | 2014-05-17 22:33:34 -0700 |
|---|---|---|
| committer | John Abd-El-Malek <jabdelmalek@google.com> | 2014-05-17 22:33:34 -0700 |
| commit | 5110c4743751145c4ae1934cd1d83bc6c55bb43f (patch) | |
| tree | b141608096b73163182764c25b895d3df4b2c182 /core/include/fxge/fx_dib.h | |
| parent | 76b563d2feed92ed328afb1f15e3466a9536b11b (diff) | |
| download | pdfium-5110c4743751145c4ae1934cd1d83bc6c55bb43f.tar.xz | |
Initial commit.
Diffstat (limited to 'core/include/fxge/fx_dib.h')
| -rw-r--r-- | core/include/fxge/fx_dib.h | 606 |
1 files changed, 606 insertions, 0 deletions
diff --git a/core/include/fxge/fx_dib.h b/core/include/fxge/fx_dib.h new file mode 100644 index 0000000000..7aa3bf8d10 --- /dev/null +++ b/core/include/fxge/fx_dib.h @@ -0,0 +1,606 @@ +// 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 _FPDF_DIB_H_
+#define _FPDF_DIB_H_
+#ifndef _FXCRT_EXTENSION_
+#include "../fxcrt/fx_ext.h"
+#endif
+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_PALETTE_LOC 0x01
+#define FXDIB_PALETTE_WIN 0x02
+#define FXDIB_PALETTE_MAC 0x04
+#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 FX_DWORD FX_ARGB;
+typedef FX_DWORD FX_COLORREF;
+typedef FX_DWORD FX_CMYK;
+class CFX_ClipRgn;
+class CFX_DIBSource;
+class CFX_DIBitmap;
+#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) ((FX_BYTE)((cmyk) >> 24) & 0xff)
+#define FXSYS_GetMValue(cmyk) ((FX_BYTE)((cmyk) >> 16) & 0xff)
+#define FXSYS_GetYValue(cmyk) ((FX_BYTE)((cmyk) >> 8) & 0xff)
+#define FXSYS_GetKValue(cmyk) ((FX_BYTE)(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) ((FX_BYTE)((argb) >> 24))
+#define FXARGB_R(argb) ((FX_BYTE)((argb) >> 16))
+#define FXARGB_G(argb) ((FX_BYTE)((argb) >> 8))
+#define FXARGB_B(argb) ((FX_BYTE)(argb))
+#define FXARGB_MAKE(a,r,g,b) (((FX_DWORD)(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) ((((FX_LPBYTE)(p))[0] << 24 | (((FX_LPBYTE)(p))[1] << 16) | (((FX_LPBYTE)(p))[2] << 8) | ((FX_LPBYTE)(p))[3]))
+#define FXCMYK_SETDIB(p, cmyk) ((FX_LPBYTE)(p))[0] = (FX_BYTE)((cmyk) >> 24), \
+ ((FX_LPBYTE)(p))[1] = (FX_BYTE)((cmyk) >> 16), \
+ ((FX_LPBYTE)(p))[2] = (FX_BYTE)((cmyk) >> 8), \
+ ((FX_LPBYTE)(p))[3] = (FX_BYTE)(cmyk))
+#define FXARGB_GETDIB(p) (((FX_LPBYTE)(p))[0]) | (((FX_LPBYTE)(p))[1] << 8) | (((FX_LPBYTE)(p))[2] << 16) | (((FX_LPBYTE)(p))[3] << 24)
+#define FXARGB_SETDIB(p, argb) ((FX_LPBYTE)(p))[0] = (FX_BYTE)(argb), \
+ ((FX_LPBYTE)(p))[1] = (FX_BYTE)((argb) >> 8), \
+ ((FX_LPBYTE)(p))[2] = (FX_BYTE)((argb) >> 16), \
+ ((FX_LPBYTE)(p))[3] = (FX_BYTE)((argb) >> 24)
+#define FXARGB_COPY(dest, src) *(FX_LPBYTE)(dest) = *(FX_LPBYTE)(src), \
+ *((FX_LPBYTE)(dest)+1) = *((FX_LPBYTE)(src)+1), \
+ *((FX_LPBYTE)(dest)+2) = *((FX_LPBYTE)(src)+2), \
+ *((FX_LPBYTE)(dest)+3) = *((FX_LPBYTE)(src)+3)
+#define FXCMYK_COPY(dest, src) *(FX_LPBYTE)(dest) = *(FX_LPBYTE)(src), \
+ *((FX_LPBYTE)(dest)+1) = *((FX_LPBYTE)(src)+1), \
+ *((FX_LPBYTE)(dest)+2) = *((FX_LPBYTE)(src)+2), \
+ *((FX_LPBYTE)(dest)+3) = *((FX_LPBYTE)(src)+3)
+#define FXARGB_SETRGBORDERDIB(p, argb) ((FX_LPBYTE)(p))[3] = (FX_BYTE)(argb>>24), \
+ ((FX_LPBYTE)(p))[0] = (FX_BYTE)((argb) >> 16), \
+ ((FX_LPBYTE)(p))[1] = (FX_BYTE)((argb) >> 8), \
+ ((FX_LPBYTE)(p))[2] = (FX_BYTE)(argb)
+#define FXARGB_GETRGBORDERDIB(p) (((FX_LPBYTE)(p))[2]) | (((FX_LPBYTE)(p))[1] << 8) | (((FX_LPBYTE)(p))[0] << 16) | (((FX_LPBYTE)(p))[3] << 24)
+#define FXARGB_RGBORDERCOPY(dest, src) *((FX_LPBYTE)(dest)+3) = *((FX_LPBYTE)(src)+3), \
+ *(FX_LPBYTE)(dest) = *((FX_LPBYTE)(src)+2), \
+ *((FX_LPBYTE)(dest)+1) = *((FX_LPBYTE)(src)+1), \
+ *((FX_LPBYTE)(dest)+2) = *((FX_LPBYTE)(src))
+#define FXARGB_TODIB(argb) (argb)
+#define FXCMYK_TODIB(cmyk) ((FX_BYTE)((cmyk) >> 24) | ((FX_BYTE)((cmyk) >> 16)) << 8 | ((FX_BYTE)((cmyk) >> 8)) << 16 | ((FX_BYTE)(cmyk) << 24))
+#define FXARGB_TOBGRORDERDIB(argb) ((FX_BYTE)(argb>>16) | ((FX_BYTE)(argb>>8)) << 8 | ((FX_BYTE)(argb)) << 16 | ((FX_BYTE)(argb>>24) << 24))
+#define FXGETFLAG_COLORTYPE(flag) (FX_BYTE)((flag)>>8)
+#define FXGETFLAG_ALPHA_FILL(flag) (FX_BYTE)(flag)
+#define FXGETFLAG_ALPHA_STROKE(flag) (FX_BYTE)((flag)>>16)
+#define FXSETFLAG_COLORTYPE(flag, val) flag = (((val)<<8)|(flag&0xffff00ff))
+#define FXSETFLAG_ALPHA_FILL(flag, val) flag = ((val)|(flag&0xffffff00))
+#define FXSETFLAG_ALPHA_STROKE(flag, val) flag = (((val)<<16)|(flag&0xff00ffff))
+class CFX_DIBSource : public CFX_Object
+{
+public:
+
+ virtual ~CFX_DIBSource();
+
+
+
+ int GetWidth() const
+ {
+ return m_Width;
+ }
+
+ int GetHeight() const
+ {
+ return m_Height;
+ }
+
+ FXDIB_Format GetFormat() const
+ {
+ return (FXDIB_Format)(m_AlphaFlag * 0x100 + m_bpp);
+ }
+
+ FX_DWORD GetPitch() const
+ {
+ return m_Pitch;
+ }
+
+ FX_DWORD* GetPalette() const
+ {
+ return m_pPalette;
+ }
+
+
+
+ virtual FX_LPBYTE GetBuffer() const
+ {
+ return NULL;
+ }
+
+ virtual FX_LPCBYTE GetScanline(int line) const = 0;
+
+ virtual FX_BOOL SkipToScanline(int line, IFX_Pause* pPause) const
+ {
+ return FALSE;
+ }
+
+ virtual void DownSampleScanline(int line, FX_LPBYTE dest_scan, int dest_bpp,
+ int dest_width, FX_BOOL bFlipX, int clip_left, int clip_width) const = 0;
+
+ virtual void SetDownSampleSize(int width, int height) const {}
+
+ int GetBPP() const
+ {
+ return m_bpp;
+ }
+
+ FX_BOOL IsAlphaMask() const
+ {
+ return m_AlphaFlag == 1;
+ }
+
+ FX_BOOL HasAlpha() const
+ {
+ return m_AlphaFlag & 2 ? TRUE : FALSE;
+ }
+
+ FX_BOOL IsOpaqueImage() const
+ {
+ return !(m_AlphaFlag & 3);
+ }
+
+ FX_BOOL IsCmykImage() const
+ {
+ return m_AlphaFlag & 4 ? TRUE : FALSE;
+ }
+
+
+
+ int GetPaletteSize() const
+ {
+ return IsAlphaMask() ? 0 : (m_bpp == 1 ? 2 : (m_bpp == 8 ? 256 : 0));
+ }
+
+ FX_DWORD GetPaletteEntry(int index) const;
+
+ void SetPaletteEntry(int index, FX_DWORD color);
+ FX_DWORD GetPaletteArgb(int index) const
+ {
+ return GetPaletteEntry(index);
+ }
+ void SetPaletteArgb(int index, FX_DWORD color)
+ {
+ SetPaletteEntry(index, color);
+ }
+
+ void CopyPalette(const FX_DWORD* pSrcPal, FX_DWORD size = 256);
+
+
+ CFX_DIBitmap* Clone(const FX_RECT* pClip = NULL) const;
+
+ CFX_DIBitmap* CloneConvert(FXDIB_Format format, const FX_RECT* pClip = NULL, void* pIccTransform = NULL) const;
+
+ CFX_DIBitmap* StretchTo(int dest_width, int dest_height, FX_DWORD flags = 0, const FX_RECT* pClip = NULL) const;
+
+
+ CFX_DIBitmap* TransformTo(const CFX_AffineMatrix* pMatrix, int& left, int &top,
+ FX_DWORD flags = 0, const FX_RECT* pClip = NULL) const;
+
+ CFX_DIBitmap* GetAlphaMask(const FX_RECT* pClip = NULL) const;
+
+ FX_BOOL CopyAlphaMask(const CFX_DIBSource* pAlphaMask, const FX_RECT* pClip = NULL);
+
+ CFX_DIBitmap* SwapXY(FX_BOOL bXFlip, FX_BOOL bYFlip, const FX_RECT* pClip = NULL) const;
+
+ CFX_DIBitmap* FlipImage(FX_BOOL bXFlip, FX_BOOL bYFlip) const;
+
+ 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);
+
+ CFX_DIBitmap* m_pAlphaMask;
+protected:
+
+ CFX_DIBSource();
+
+ int m_Width;
+
+ int m_Height;
+
+ int m_bpp;
+
+ FX_DWORD m_AlphaFlag;
+
+ FX_DWORD m_Pitch;
+
+ FX_DWORD* m_pPalette;
+
+ void BuildPalette();
+
+ FX_BOOL BuildAlphaMask();
+
+ int FindPalette(FX_DWORD color) const;
+
+ void GetPalette(FX_DWORD* pal, int alpha) const;
+};
+class CFX_DIBitmap : public CFX_DIBSource
+{
+public:
+
+ virtual ~CFX_DIBitmap();
+
+ CFX_DIBitmap();
+
+ CFX_DIBitmap(const CFX_DIBitmap& src);
+
+ FX_BOOL Create(int width, int height, FXDIB_Format format, FX_LPBYTE pBuffer = NULL, int pitch = 0);
+
+ FX_BOOL Copy(const CFX_DIBSource* pSrc);
+
+ virtual FX_LPBYTE GetBuffer() const
+ {
+ return m_pBuffer;
+ }
+
+ virtual FX_LPCBYTE GetScanline(int line) const
+ {
+ return m_pBuffer ? m_pBuffer + line * m_Pitch : NULL;
+ }
+
+ virtual void DownSampleScanline(int line, FX_LPBYTE dest_scan, int dest_bpp,
+ int dest_width, FX_BOOL bFlipX, int clip_left, int clip_width) const;
+
+ void TakeOver(CFX_DIBitmap* pSrcBitmap);
+
+ FX_BOOL ConvertFormat(FXDIB_Format format, void* pIccTransform = NULL);
+
+ void Clear(FX_DWORD color);
+
+ FX_DWORD GetPixel(int x, int y) const;
+
+ void SetPixel(int x, int y, FX_DWORD color);
+
+ FX_BOOL LoadChannel(FXDIB_Channel destChannel, const CFX_DIBSource* pSrcBitmap, FXDIB_Channel srcChannel);
+
+ FX_BOOL LoadChannel(FXDIB_Channel destChannel, int value);
+
+ FX_BOOL MultiplyAlpha(int alpha);
+
+ FX_BOOL MultiplyAlpha(const CFX_DIBSource* pAlphaMask);
+
+ FX_BOOL TransferBitmap(int dest_left, int dest_top, int width, int height,
+ const CFX_DIBSource* pSrcBitmap, int src_left, int src_top, void* pIccTransform = NULL);
+
+ FX_BOOL CompositeBitmap(int dest_left, int dest_top, int width, int height,
+ const CFX_DIBSource* pSrcBitmap, int src_left, int src_top,
+ int blend_type = FXDIB_BLEND_NORMAL, const CFX_ClipRgn* pClipRgn = NULL, FX_BOOL bRgbByteOrder = FALSE, void* pIccTransform = NULL);
+
+ FX_BOOL TransferMask(int dest_left, int dest_top, int width, int height,
+ const CFX_DIBSource* pMask, FX_DWORD color, int src_left, int src_top, int alpha_flag = 0, void* pIccTransform = NULL);
+
+ FX_BOOL CompositeMask(int dest_left, int dest_top, int width, int height,
+ const CFX_DIBSource* pMask, FX_DWORD color, int src_left, int src_top,
+ int blend_type = FXDIB_BLEND_NORMAL, const CFX_ClipRgn* pClipRgn = NULL, FX_BOOL bRgbByteOrder = FALSE, int alpha_flag = 0, void* pIccTransform = NULL);
+
+ FX_BOOL CompositeRect(int dest_left, int dest_top, int width, int height, FX_DWORD color, int alpha_flag = 0, void* pIccTransform = NULL);
+
+ FX_BOOL ConvertColorScale(FX_DWORD forecolor, FX_DWORD backcolor);
+
+ FX_BOOL DitherFS(const FX_DWORD* pPalette, int pal_size, const FX_RECT* pRect = NULL);
+protected:
+
+ FX_LPBYTE m_pBuffer;
+
+ FX_BOOL m_bExtBuf;
+
+ FX_BOOL GetGrayData(void* pIccTransform = NULL);
+};
+class CFX_DIBExtractor : public CFX_Object
+{
+public:
+
+ CFX_DIBExtractor(const CFX_DIBSource* pSrc);
+
+ ~CFX_DIBExtractor();
+
+ operator CFX_DIBitmap*()
+ {
+ return m_pBitmap;
+ }
+private:
+
+ CFX_DIBitmap* m_pBitmap;
+};
+typedef CFX_CountRef<CFX_DIBitmap> CFX_DIBitmapRef;
+class CFX_FilteredDIB : public CFX_DIBSource
+{
+public:
+
+ CFX_FilteredDIB();
+
+ ~CFX_FilteredDIB();
+
+ void LoadSrc(const CFX_DIBSource* pSrc, FX_BOOL bAutoDropSrc = FALSE);
+
+ virtual FXDIB_Format GetDestFormat() = 0;
+
+ virtual FX_DWORD* GetDestPalette() = 0;
+
+
+ virtual void TranslateScanline(FX_LPBYTE dest_buf, FX_LPCBYTE src_buf) const = 0;
+
+ virtual void TranslateDownSamples(FX_LPBYTE dest_buf, FX_LPCBYTE src_buf, int pixels, int Bpp) const = 0;
+protected:
+ virtual FX_LPCBYTE GetScanline(int line) const;
+ virtual void DownSampleScanline(int line, FX_LPBYTE dest_scan, int dest_bpp,
+ int dest_width, FX_BOOL bFlipX, int clip_left, int clip_width) const;
+
+ const CFX_DIBSource* m_pSrc;
+
+ FX_BOOL m_bAutoDropSrc;
+
+ FX_LPBYTE m_pScanline;
+};
+class IFX_ScanlineComposer
+{
+public:
+
+ virtual void ComposeScanline(int line, FX_LPCBYTE scanline, FX_LPCBYTE scan_extra_alpha = NULL) = 0;
+
+
+ virtual FX_BOOL SetInfo(int width, int height, FXDIB_Format src_format, FX_DWORD* pSrcPalette) = 0;
+};
+class CFX_ScanlineCompositor : public CFX_Object
+{
+public:
+
+ CFX_ScanlineCompositor();
+
+ ~CFX_ScanlineCompositor();
+
+ FX_BOOL Init(FXDIB_Format dest_format, FXDIB_Format src_format, FX_INT32 width, FX_DWORD* pSrcPalette,
+ FX_DWORD mask_color, int blend_type, FX_BOOL bClip, FX_BOOL bRgbByteOrder = FALSE, int alpha_flag = 0, void* pIccTransform = NULL);
+
+
+ void CompositeRgbBitmapLine(FX_LPBYTE dest_scan, FX_LPCBYTE src_scan, int width, FX_LPCBYTE clip_scan,
+ FX_LPCBYTE src_extra_alpha = NULL, FX_LPBYTE dst_extra_alpha = NULL);
+
+
+ void CompositePalBitmapLine(FX_LPBYTE dest_scan, FX_LPCBYTE src_scan, int src_left, int width, FX_LPCBYTE clip_scan,
+ FX_LPCBYTE src_extra_alpha = NULL, FX_LPBYTE dst_extra_alpha = NULL);
+
+
+ void CompositeByteMaskLine(FX_LPBYTE dest_scan, FX_LPCBYTE src_scan, int width, FX_LPCBYTE clip_scan,
+ FX_LPBYTE dst_extra_alpha = NULL);
+
+
+ void CompositeBitMaskLine(FX_LPBYTE dest_scan, FX_LPCBYTE src_scan, int src_left, int width, FX_LPCBYTE clip_scan,
+ FX_LPBYTE dst_extra_alpha = NULL);
+protected:
+ int m_Transparency;
+ FXDIB_Format m_SrcFormat,
+ m_DestFormat;
+ FX_DWORD* m_pSrcPalette;
+
+ int m_MaskAlpha,
+ m_MaskRed,
+ m_MaskGreen,
+ m_MaskBlue,
+ m_MaskBlack;
+ int m_BlendType;
+ void* m_pIccTransform;
+ FX_LPBYTE m_pCacheScanline;
+ int m_CacheSize;
+ FX_BOOL m_bRgbByteOrder;
+};
+class CFX_BitmapComposer : public IFX_ScanlineComposer, public CFX_Object
+{
+public:
+
+ CFX_BitmapComposer();
+
+ ~CFX_BitmapComposer();
+
+
+ void Compose(CFX_DIBitmap* pDest, const CFX_ClipRgn* pClipRgn, int bitmap_alpha,
+ FX_DWORD mask_color, FX_RECT& dest_rect, FX_BOOL bVertical,
+ FX_BOOL bFlipX, FX_BOOL bFlipY, FX_BOOL bRgbByteOrder = FALSE,
+ int alpha_flag = 0, void* pIccTransform = NULL, int blend_type = FXDIB_BLEND_NORMAL);
+
+ virtual FX_BOOL SetInfo(int width, int height, FXDIB_Format src_format, FX_DWORD* pSrcPalette);
+
+
+ virtual void ComposeScanline(int line, FX_LPCBYTE scanline, FX_LPCBYTE scan_extra_alpha);
+protected:
+
+ void DoCompose(FX_LPBYTE dest_scan, FX_LPCBYTE src_scan, int dest_width, FX_LPCBYTE clip_scan,
+ FX_LPCBYTE src_extra_alpha = NULL, FX_LPBYTE dst_extra_alpha = NULL);
+ CFX_DIBitmap* m_pBitmap;
+ const CFX_ClipRgn* m_pClipRgn;
+ FXDIB_Format m_SrcFormat;
+ int m_DestLeft, m_DestTop, m_DestWidth, m_DestHeight, m_BitmapAlpha;
+ FX_DWORD m_MaskColor;
+ const CFX_DIBitmap* m_pClipMask;
+ CFX_ScanlineCompositor m_Compositor;
+ FX_BOOL m_bVertical, m_bFlipX, m_bFlipY;
+ int m_AlphaFlag;
+ void* m_pIccTransform;
+ FX_BOOL m_bRgbByteOrder;
+ int m_BlendType;
+ void ComposeScanlineV(int line, FX_LPCBYTE scanline, FX_LPCBYTE scan_extra_alpha = NULL);
+ FX_LPBYTE m_pScanlineV, m_pClipScanV, m_pAddClipScan, m_pScanlineAlphaV;
+};
+class CFX_BitmapStorer : public IFX_ScanlineComposer, public CFX_Object
+{
+public:
+
+ CFX_BitmapStorer();
+
+ ~CFX_BitmapStorer();
+
+ virtual void ComposeScanline(int line, FX_LPCBYTE scanline, FX_LPCBYTE scan_extra_alpha);
+
+ virtual FX_BOOL SetInfo(int width, int height, FXDIB_Format src_format, FX_DWORD* pSrcPalette);
+
+ CFX_DIBitmap* GetBitmap()
+ {
+ return m_pBitmap;
+ }
+
+ CFX_DIBitmap* Detach();
+
+ void Replace(CFX_DIBitmap* pBitmap);
+private:
+ CFX_DIBitmap* m_pBitmap;
+};
+class CStretchEngine;
+class CFX_ImageStretcher : public CFX_Object
+{
+public:
+
+ CFX_ImageStretcher();
+
+ ~CFX_ImageStretcher();
+
+ FX_INT32 Start(IFX_ScanlineComposer* pDest, const CFX_DIBSource* pBitmap,
+ int dest_width, int dest_height, const FX_RECT& bitmap_rect, FX_DWORD flags);
+
+
+ FX_INT32 Continue(IFX_Pause* pPause);
+ IFX_ScanlineComposer* m_pDest;
+ const CFX_DIBSource* m_pSource;
+ CStretchEngine* m_pStretchEngine;
+ FX_DWORD m_Flags;
+ FX_BOOL m_bFlipX,
+ m_bFlipY;
+ int m_DestWidth,
+ m_DestHeight;
+ FX_RECT m_ClipRect;
+ int m_LineIndex;
+ int m_DestBPP;
+ FX_LPBYTE m_pScanline;
+ FX_LPBYTE m_pMaskScanline;
+ FXDIB_Format m_DestFormat;
+ FX_INT32 m_Status;
+
+ FX_INT32 StartQuickStretch();
+
+ FX_INT32 StartStretch();
+
+ FX_INT32 ContinueQuickStretch(IFX_Pause* pPause);
+
+ FX_INT32 ContinueStretch(IFX_Pause* pPause);
+};
+class CFX_ImageTransformer : public CFX_Object
+{
+public:
+
+ CFX_ImageTransformer();
+
+ ~CFX_ImageTransformer();
+
+ FX_INT32 Start(const CFX_DIBSource* pSrc, const CFX_AffineMatrix* pMatrix, int flags, const FX_RECT* pClip);
+
+
+ FX_INT32 Continue(IFX_Pause* pPause);
+ CFX_AffineMatrix* m_pMatrix;
+ FX_RECT m_StretchClip;
+ int m_ResultLeft, m_ResultTop, m_ResultWidth, m_ResultHeight;
+ CFX_AffineMatrix m_dest2stretch;
+ CFX_ImageStretcher m_Stretcher;
+ CFX_BitmapStorer m_Storer;
+ FX_DWORD m_Flags;
+ int m_Status;
+};
+class CFX_ImageRenderer : public CFX_Object
+{
+public:
+
+ CFX_ImageRenderer();
+
+ ~CFX_ImageRenderer();
+
+ FX_INT32 Start(CFX_DIBitmap* pDevice, const CFX_ClipRgn* pClipRgn,
+ const CFX_DIBSource* pSource, int bitmap_alpha,
+ FX_DWORD mask_color, const CFX_AffineMatrix* pMatrix, FX_DWORD dib_flags,
+ FX_BOOL bRgbByteOrder = FALSE, int alpha_flag = 0, void* pIccTransform = NULL,
+ int blend_type = FXDIB_BLEND_NORMAL);
+
+ FX_INT32 Continue(IFX_Pause* pPause);
+protected:
+ CFX_DIBitmap* m_pDevice;
+ const CFX_ClipRgn* m_pClipRgn;
+ int m_BitmapAlpha;
+ FX_DWORD m_MaskColor;
+ CFX_AffineMatrix m_Matrix;
+ CFX_ImageTransformer* m_pTransformer;
+ CFX_ImageStretcher m_Stretcher;
+ CFX_BitmapComposer m_Composer;
+ int m_Status;
+ int m_DestLeft, m_DestTop;
+ FX_RECT m_ClipBox;
+ FX_DWORD m_Flags;
+ int m_AlphaFlag;
+ void* m_pIccTransform;
+ FX_BOOL m_bRgbByteOrder;
+ int m_BlendType;
+};
+#endif
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