1 // Copyright 2014 PDFium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com 6 7 #ifndef CORE_FXGE_FX_DIB_H_ 8 #define CORE_FXGE_FX_DIB_H_ 9 10 #include <tuple> 11 #include <utility> 12 13 #include "core/fxcrt/fx_coordinates.h" 14 #include "core/fxcrt/widestring.h" 15 16 enum FXDIB_Format { 17 FXDIB_Invalid = 0, 18 FXDIB_1bppRgb = 0x001, 19 FXDIB_8bppRgb = 0x008, 20 FXDIB_Rgb = 0x018, 21 FXDIB_Rgb32 = 0x020, 22 FXDIB_1bppMask = 0x101, 23 FXDIB_8bppMask = 0x108, 24 FXDIB_8bppRgba = 0x208, 25 FXDIB_Rgba = 0x218, 26 FXDIB_Argb = 0x220, 27 FXDIB_1bppCmyk = 0x401, 28 FXDIB_8bppCmyk = 0x408, 29 FXDIB_Cmyk = 0x420, 30 FXDIB_8bppCmyka = 0x608, 31 FXDIB_Cmyka = 0x620, 32 }; 33 34 struct PixelWeight { 35 int m_SrcStart; 36 int m_SrcEnd; 37 int m_Weights[1]; 38 }; 39 40 typedef uint32_t FX_ARGB; 41 typedef uint32_t FX_COLORREF; 42 typedef uint32_t FX_CMYK; 43 class CFX_ClipRgn; 44 class CFX_DIBSource; 45 class CStretchEngine; 46 47 extern const int16_t SDP_Table[513]; 48 49 #define FXDIB_DOWNSAMPLE 0x04 50 #define FXDIB_INTERPOL 0x20 51 #define FXDIB_BICUBIC_INTERPOL 0x80 52 #define FXDIB_NOSMOOTH 0x100 53 54 #define FXDIB_BLEND_NORMAL 0 55 #define FXDIB_BLEND_MULTIPLY 1 56 #define FXDIB_BLEND_SCREEN 2 57 #define FXDIB_BLEND_OVERLAY 3 58 #define FXDIB_BLEND_DARKEN 4 59 #define FXDIB_BLEND_LIGHTEN 5 60 #define FXDIB_BLEND_COLORDODGE 6 61 #define FXDIB_BLEND_COLORBURN 7 62 #define FXDIB_BLEND_HARDLIGHT 8 63 #define FXDIB_BLEND_SOFTLIGHT 9 64 #define FXDIB_BLEND_DIFFERENCE 10 65 #define FXDIB_BLEND_EXCLUSION 11 66 #define FXDIB_BLEND_NONSEPARABLE 21 67 #define FXDIB_BLEND_HUE 21 68 #define FXDIB_BLEND_SATURATION 22 69 #define FXDIB_BLEND_COLOR 23 70 #define FXDIB_BLEND_LUMINOSITY 24 71 #define FXDIB_BLEND_UNSUPPORTED -1 72 73 #define FXSYS_RGB(r, g, b) ((r) | ((g) << 8) | ((b) << 16)) 74 #define FXSYS_GetRValue(rgb) ((rgb)&0xff) 75 #define FXSYS_GetGValue(rgb) (((rgb) >> 8) & 0xff) 76 #define FXSYS_GetBValue(rgb) (((rgb) >> 16) & 0xff) 77 78 #define FXSYS_GetCValue(cmyk) ((uint8_t)((cmyk) >> 24) & 0xff) 79 #define FXSYS_GetMValue(cmyk) ((uint8_t)((cmyk) >> 16) & 0xff) 80 #define FXSYS_GetYValue(cmyk) ((uint8_t)((cmyk) >> 8) & 0xff) 81 #define FXSYS_GetKValue(cmyk) ((uint8_t)(cmyk)&0xff) 82 83 inline FX_CMYK CmykEncode(int c, int m, int y, int k) { 84 return (c << 24) | (m << 16) | (y << 8) | k; 85 } 86 87 // Returns tuple a, r, g, b 88 std::tuple<int, int, int, int> ArgbDecode(FX_ARGB argb); 89 90 // Returns pair a, rgb 91 std::pair<int, FX_COLORREF> ArgbToColorRef(FX_ARGB argb); 92 93 inline FX_ARGB ArgbEncode(int a, int r, int g, int b) { 94 return (a << 24) | (r << 16) | (g << 8) | b; 95 } 96 FX_ARGB ArgbEncode(int a, FX_COLORREF rgb); 97 98 FX_ARGB StringToFXARGB(const WideStringView& view); 99 100 #define FXARGB_A(argb) ((uint8_t)((argb) >> 24)) 101 #define FXARGB_R(argb) ((uint8_t)((argb) >> 16)) 102 #define FXARGB_G(argb) ((uint8_t)((argb) >> 8)) 103 #define FXARGB_B(argb) ((uint8_t)(argb)) 104 #define FXARGB_MAKE(a, r, g, b) \ 105 (((uint32_t)(a) << 24) | ((r) << 16) | ((g) << 8) | (b)) 106 #define FXARGB_MUL_ALPHA(argb, alpha) \ 107 (((((argb) >> 24) * (alpha) / 255) << 24) | ((argb)&0xffffff)) 108 109 #define FXRGB2GRAY(r, g, b) (((b)*11 + (g)*59 + (r)*30) / 100) 110 #define FXDIB_ALPHA_MERGE(backdrop, source, source_alpha) \ 111 (((backdrop) * (255 - (source_alpha)) + (source) * (source_alpha)) / 255) 112 #define FXARGB_GETDIB(p) \ 113 ((((uint8_t*)(p))[0]) | (((uint8_t*)(p))[1] << 8) | \ 114 (((uint8_t*)(p))[2] << 16) | (((uint8_t*)(p))[3] << 24)) 115 #define FXARGB_SETDIB(p, argb) \ 116 ((uint8_t*)(p))[0] = (uint8_t)(argb), \ 117 ((uint8_t*)(p))[1] = (uint8_t)((argb) >> 8), \ 118 ((uint8_t*)(p))[2] = (uint8_t)((argb) >> 16), \ 119 ((uint8_t*)(p))[3] = (uint8_t)((argb) >> 24) 120 #define FXARGB_SETRGBORDERDIB(p, argb) \ 121 ((uint8_t*)(p))[3] = (uint8_t)(argb >> 24), \ 122 ((uint8_t*)(p))[0] = (uint8_t)((argb) >> 16), \ 123 ((uint8_t*)(p))[1] = (uint8_t)((argb) >> 8), \ 124 ((uint8_t*)(p))[2] = (uint8_t)(argb) 125 #define FXARGB_TODIB(argb) (argb) 126 #define FXCMYK_TODIB(cmyk) \ 127 ((uint8_t)((cmyk) >> 24) | ((uint8_t)((cmyk) >> 16)) << 8 | \ 128 ((uint8_t)((cmyk) >> 8)) << 16 | ((uint8_t)(cmyk) << 24)) 129 #define FXARGB_TOBGRORDERDIB(argb) \ 130 ((uint8_t)(argb >> 16) | ((uint8_t)(argb >> 8)) << 8 | \ 131 ((uint8_t)(argb)) << 16 | ((uint8_t)(argb >> 24) << 24)) 132 133 FX_RECT FXDIB_SwapClipBox(FX_RECT& clip, 134 int width, 135 int height, 136 bool bFlipX, 137 bool bFlipY); 138 139 #endif // CORE_FXGE_FX_DIB_H_ 140
