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 #include "core/fxge/fx_dib.h"
8
9 #include <tuple>
10 #include <utility>
11
12 #include "core/fxcrt/fx_extension.h"
13 #include "third_party/base/ptr_util.h"
14
15 const int16_t SDP_Table[513] = {
16 256, 256, 256, 256, 256, 256, 256, 256, 256, 255, 255, 255, 255, 255, 255,
17 254, 254, 254, 254, 253, 253, 253, 252, 252, 252, 251, 251, 251, 250, 250,
18 249, 249, 249, 248, 248, 247, 247, 246, 246, 245, 244, 244, 243, 243, 242,
19 242, 241, 240, 240, 239, 238, 238, 237, 236, 236, 235, 234, 233, 233, 232,
20 231, 230, 230, 229, 228, 227, 226, 226, 225, 224, 223, 222, 221, 220, 219,
21 218, 218, 217, 216, 215, 214, 213, 212, 211, 210, 209, 208, 207, 206, 205,
22 204, 203, 202, 201, 200, 199, 198, 196, 195, 194, 193, 192, 191, 190, 189,
23 188, 186, 185, 184, 183, 182, 181, 179, 178, 177, 176, 175, 173, 172, 171,
24 170, 169, 167, 166, 165, 164, 162, 161, 160, 159, 157, 156, 155, 154, 152,
25 151, 150, 149, 147, 146, 145, 143, 142, 141, 140, 138, 137, 136, 134, 133,
26 132, 130, 129, 128, 126, 125, 124, 122, 121, 120, 119, 117, 116, 115, 113,
27 112, 111, 109, 108, 107, 105, 104, 103, 101, 100, 99, 97, 96, 95, 93,
28 92, 91, 89, 88, 87, 85, 84, 83, 81, 80, 79, 77, 76, 75, 73,
29 72, 71, 69, 68, 67, 66, 64, 63, 62, 60, 59, 58, 57, 55, 54,
30 53, 52, 50, 49, 48, 47, 45, 44, 43, 42, 40, 39, 38, 37, 36,
31 34, 33, 32, 31, 30, 28, 27, 26, 25, 24, 23, 21, 20, 19, 18,
32 17, 16, 15, 14, 13, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2,
33 1, 0, 0, -1, -2, -3, -4, -5, -6, -7, -7, -8, -9, -10, -11,
34 -12, -12, -13, -14, -15, -15, -16, -17, -17, -18, -19, -19, -20, -21, -21,
35 -22, -22, -23, -24, -24, -25, -25, -26, -26, -27, -27, -27, -28, -28, -29,
36 -29, -30, -30, -30, -31, -31, -31, -32, -32, -32, -33, -33, -33, -33, -34,
37 -34, -34, -34, -35, -35, -35, -35, -35, -36, -36, -36, -36, -36, -36, -36,
38 -36, -36, -37, -37, -37, -37, -37, -37, -37, -37, -37, -37, -37, -37, -37,
39 -37, -37, -37, -37, -37, -37, -37, -37, -36, -36, -36, -36, -36, -36, -36,
40 -36, -36, -35, -35, -35, -35, -35, -35, -34, -34, -34, -34, -34, -33, -33,
41 -33, -33, -33, -32, -32, -32, -32, -31, -31, -31, -31, -30, -30, -30, -30,
42 -29, -29, -29, -29, -28, -28, -28, -27, -27, -27, -27, -26, -26, -26, -25,
43 -25, -25, -24, -24, -24, -23, -23, -23, -22, -22, -22, -22, -21, -21, -21,
44 -20, -20, -20, -19, -19, -19, -18, -18, -18, -17, -17, -17, -16, -16, -16,
45 -15, -15, -15, -14, -14, -14, -13, -13, -13, -12, -12, -12, -11, -11, -11,
46 -10, -10, -10, -9, -9, -9, -9, -8, -8, -8, -7, -7, -7, -7, -6,
47 -6, -6, -6, -5, -5, -5, -5, -4, -4, -4, -4, -3, -3, -3, -3,
48 -3, -2, -2, -2, -2, -2, -1, -1, -1, -1, -1, -1, 0, 0, 0,
49 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
50 0, 0, 0,
51 };
52
FXDIB_SwapClipBox(FX_RECT & clip,int width,int height,bool bFlipX,bool bFlipY)53 FX_RECT FXDIB_SwapClipBox(FX_RECT& clip,
54 int width,
55 int height,
56 bool bFlipX,
57 bool bFlipY) {
58 FX_RECT rect;
59 if (bFlipY) {
60 rect.left = height - clip.top;
61 rect.right = height - clip.bottom;
62 } else {
63 rect.left = clip.top;
64 rect.right = clip.bottom;
65 }
66 if (bFlipX) {
67 rect.top = width - clip.left;
68 rect.bottom = width - clip.right;
69 } else {
70 rect.top = clip.left;
71 rect.bottom = clip.right;
72 }
73 rect.Normalize();
74 return rect;
75 }
76
ArgbDecode(FX_ARGB argb)77 std::tuple<int, int, int, int> ArgbDecode(FX_ARGB argb) {
78 return std::make_tuple(FXARGB_A(argb), FXARGB_R(argb), FXARGB_G(argb),
79 FXARGB_B(argb));
80 }
81
ArgbToColorRef(FX_ARGB argb)82 std::pair<int, FX_COLORREF> ArgbToColorRef(FX_ARGB argb) {
83 return {FXARGB_A(argb),
84 FXSYS_RGB(FXARGB_R(argb), FXARGB_G(argb), FXARGB_B(argb))};
85 }
86
ArgbEncode(int a,FX_COLORREF rgb)87 uint32_t ArgbEncode(int a, FX_COLORREF rgb) {
88 return FXARGB_MAKE(a, FXSYS_GetRValue(rgb), FXSYS_GetGValue(rgb),
89 FXSYS_GetBValue(rgb));
90 }
91
StringToFXARGB(const WideStringView & wsValue)92 FX_ARGB StringToFXARGB(const WideStringView& wsValue) {
93 uint8_t r = 0, g = 0, b = 0;
94 if (wsValue.GetLength() == 0)
95 return 0xff000000;
96
97 int cc = 0;
98 const wchar_t* str = wsValue.unterminated_c_str();
99 int len = wsValue.GetLength();
100 while (FXSYS_iswspace(str[cc]) && cc < len)
101 cc++;
102
103 if (cc >= len)
104 return 0xff000000;
105
106 while (cc < len) {
107 if (str[cc] == ',' || !FXSYS_isDecimalDigit(str[cc]))
108 break;
109
110 r = r * 10 + str[cc] - '0';
111 cc++;
112 }
113 if (cc < len && str[cc] == ',') {
114 cc++;
115 while (FXSYS_iswspace(str[cc]) && cc < len)
116 cc++;
117
118 while (cc < len) {
119 if (str[cc] == ',' || !FXSYS_isDecimalDigit(str[cc]))
120 break;
121
122 g = g * 10 + str[cc] - '0';
123 cc++;
124 }
125 if (cc < len && str[cc] == ',') {
126 cc++;
127 while (FXSYS_iswspace(str[cc]) && cc < len)
128 cc++;
129
130 while (cc < len) {
131 if (str[cc] == ',' || !FXSYS_isDecimalDigit(str[cc]))
132 break;
133
134 b = b * 10 + str[cc] - '0';
135 cc++;
136 }
137 }
138 }
139 return (0xff << 24) | (r << 16) | (g << 8) | b;
140 }
141