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