File size: 14,257 Bytes
034d0a2 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 | // Copyright 2018 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <algorithm>
#include <array>
#include <cstring>
#include <QImage>
#include "citra_qt/camera/camera_util.h"
namespace CameraUtil {
// The following are data tables for RGB -> YUV conversions.
namespace YuvTable {
constexpr std::array<int, 256> Y_R = {
53, 53, 53, 54, 54, 54, 55, 55, 55, 56, 56, 56, 56, 57, 57, 57, 58, 58, 58,
59, 59, 59, 59, 60, 60, 60, 61, 61, 61, 62, 62, 62, 62, 63, 63, 63, 64, 64,
64, 65, 65, 65, 65, 66, 66, 66, 67, 67, 67, 67, 68, 68, 68, 69, 69, 69, 70,
70, 70, 70, 71, 71, 71, 72, 72, 72, 73, 73, 73, 73, 74, 74, 74, 75, 75, 75,
76, 76, 76, 76, 77, 77, 77, 78, 78, 78, 79, 79, 79, 79, 80, 80, 80, 81, 81,
81, 82, 82, 82, 82, 83, 83, 83, 84, 84, 84, 85, 85, 85, 85, 86, 86, 86, 87,
87, 87, 87, 88, 88, 88, 89, 89, 89, 90, 90, 90, 90, 91, 91, 91, 92, 92, 92,
93, 93, 93, 93, 94, 94, 94, 95, 95, 95, 96, 96, 96, 96, 97, 97, 97, 98, 98,
98, 99, 99, 99, 99, 100, 100, 100, 101, 101, 101, 102, 102, 102, 102, 103, 103, 103, 104,
104, 104, 105, 105, 105, 105, 106, 106, 106, 107, 107, 107, 108, 108, 108, 108, 109, 109, 109,
110, 110, 110, 110, 111, 111, 111, 112, 112, 112, 113, 113, 113, 113, 114, 114, 114, 115, 115,
115, 116, 116, 116, 116, 117, 117, 117, 118, 118, 118, 119, 119, 119, 119, 120, 120, 120, 121,
121, 121, 122, 122, 122, 122, 123, 123, 123, 124, 124, 124, 125, 125, 125, 125, 126, 126, 126,
127, 127, 127, 128, 128, 128, 128, 129, 129,
};
constexpr std::array<int, 256> Y_G = {
-79, -79, -78, -78, -77, -77, -76, -75, -75, -74, -74, -73, -72, -72, -71, -71, -70, -70, -69,
-68, -68, -67, -67, -66, -65, -65, -64, -64, -63, -62, -62, -61, -61, -60, -60, -59, -58, -58,
-57, -57, -56, -55, -55, -54, -54, -53, -52, -52, -51, -51, -50, -50, -49, -48, -48, -47, -47,
-46, -45, -45, -44, -44, -43, -42, -42, -41, -41, -40, -40, -39, -38, -38, -37, -37, -36, -35,
-35, -34, -34, -33, -33, -32, -31, -31, -30, -30, -29, -28, -28, -27, -27, -26, -25, -25, -24,
-24, -23, -23, -22, -21, -21, -20, -20, -19, -18, -18, -17, -17, -16, -15, -15, -14, -14, -13,
-13, -12, -11, -11, -10, -10, -9, -8, -8, -7, -7, -6, -5, -5, -4, -4, -3, -3, -2,
-1, -1, 0, 0, 0, 1, 1, 2, 2, 3, 4, 4, 5, 5, 6, 6, 7, 8, 8,
9, 9, 10, 11, 11, 12, 12, 13, 13, 14, 15, 15, 16, 16, 17, 18, 18, 19, 19,
20, 21, 21, 22, 22, 23, 23, 24, 25, 25, 26, 26, 27, 28, 28, 29, 29, 30, 31,
31, 32, 32, 33, 33, 34, 35, 35, 36, 36, 37, 38, 38, 39, 39, 40, 41, 41, 42,
42, 43, 43, 44, 45, 45, 46, 46, 47, 48, 48, 49, 49, 50, 50, 51, 52, 52, 53,
53, 54, 55, 55, 56, 56, 57, 58, 58, 59, 59, 60, 60, 61, 62, 62, 63, 63, 64,
65, 65, 66, 66, 67, 68, 68, 69, 69,
};
constexpr std::array<int, 256> Y_B = {
25, 25, 26, 26, 26, 26, 26, 26, 26, 26, 26, 27, 27, 27, 27, 27, 27, 27, 27, 27, 28, 28, 28, 28,
28, 28, 28, 28, 28, 29, 29, 29, 29, 29, 29, 29, 29, 30, 30, 30, 30, 30, 30, 30, 30, 30, 31, 31,
31, 31, 31, 31, 31, 31, 31, 32, 32, 32, 32, 32, 32, 32, 32, 32, 33, 33, 33, 33, 33, 33, 33, 33,
34, 34, 34, 34, 34, 34, 34, 34, 34, 35, 35, 35, 35, 35, 35, 35, 35, 35, 36, 36, 36, 36, 36, 36,
36, 36, 36, 37, 37, 37, 37, 37, 37, 37, 37, 38, 38, 38, 38, 38, 38, 38, 38, 38, 39, 39, 39, 39,
39, 39, 39, 39, 39, 40, 40, 40, 40, 40, 40, 40, 40, 40, 41, 41, 41, 41, 41, 41, 41, 41, 41, 42,
42, 42, 42, 42, 42, 42, 42, 43, 43, 43, 43, 43, 43, 43, 43, 43, 44, 44, 44, 44, 44, 44, 44, 44,
44, 45, 45, 45, 45, 45, 45, 45, 45, 45, 46, 46, 46, 46, 46, 46, 46, 46, 47, 47, 47, 47, 47, 47,
47, 47, 47, 48, 48, 48, 48, 48, 48, 48, 48, 48, 49, 49, 49, 49, 49, 49, 49, 49, 49, 50, 50, 50,
50, 50, 50, 50, 50, 51, 51, 51, 51, 51, 51, 51, 51, 51, 52, 52, 52, 52, 52, 52, 52, 52, 52, 53,
53, 53, 53, 53, 53, 53, 53, 53, 54, 54, 54, 54, 54, 54, 54, 54,
};
static constexpr int Y(int r, int g, int b) {
return Y_R[r] + Y_G[g] + Y_B[b];
}
constexpr std::array<int, 256> U_R = {
30, 30, 30, 30, 30, 30, 31, 31, 31, 31, 31, 32, 32, 32, 32, 32, 32, 33, 33, 33, 33, 33, 33, 34,
34, 34, 34, 34, 34, 35, 35, 35, 35, 35, 35, 36, 36, 36, 36, 36, 36, 37, 37, 37, 37, 37, 37, 38,
38, 38, 38, 38, 38, 39, 39, 39, 39, 39, 39, 40, 40, 40, 40, 40, 40, 41, 41, 41, 41, 41, 41, 42,
42, 42, 42, 42, 42, 43, 43, 43, 43, 43, 43, 44, 44, 44, 44, 44, 45, 45, 45, 45, 45, 45, 46, 46,
46, 46, 46, 46, 47, 47, 47, 47, 47, 47, 48, 48, 48, 48, 48, 48, 49, 49, 49, 49, 49, 49, 50, 50,
50, 50, 50, 50, 51, 51, 51, 51, 51, 51, 52, 52, 52, 52, 52, 52, 53, 53, 53, 53, 53, 53, 54, 54,
54, 54, 54, 54, 55, 55, 55, 55, 55, 55, 56, 56, 56, 56, 56, 56, 57, 57, 57, 57, 57, 57, 58, 58,
58, 58, 58, 59, 59, 59, 59, 59, 59, 60, 60, 60, 60, 60, 60, 61, 61, 61, 61, 61, 61, 62, 62, 62,
62, 62, 62, 63, 63, 63, 63, 63, 63, 64, 64, 64, 64, 64, 64, 65, 65, 65, 65, 65, 65, 66, 66, 66,
66, 66, 66, 67, 67, 67, 67, 67, 67, 68, 68, 68, 68, 68, 68, 69, 69, 69, 69, 69, 69, 70, 70, 70,
70, 70, 70, 71, 71, 71, 71, 71, 72, 72, 72, 72, 72, 72, 73, 73,
};
constexpr std::array<int, 256> U_G = {
-45, -44, -44, -44, -43, -43, -43, -42, -42, -42, -41, -41, -41, -40, -40, -40, -39, -39, -39,
-38, -38, -38, -37, -37, -37, -36, -36, -36, -35, -35, -35, -34, -34, -34, -33, -33, -33, -32,
-32, -32, -31, -31, -31, -30, -30, -30, -29, -29, -29, -28, -28, -28, -27, -27, -27, -26, -26,
-26, -25, -25, -25, -24, -24, -24, -23, -23, -23, -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, -14,
-13, -13, -13, -12, -12, -12, -11, -11, -11, -10, -10, -10, -9, -9, -9, -8, -8, -8, -7,
-7, -7, -6, -6, -6, -5, -5, -5, -4, -4, -4, -3, -3, -3, -2, -2, -2, -1, -1,
-1, 0, 0, 0, 0, 0, 0, 1, 1, 1, 2, 2, 2, 3, 3, 3, 4, 4, 4,
5, 5, 5, 6, 6, 6, 7, 7, 7, 8, 8, 8, 9, 9, 9, 10, 10, 10, 11,
11, 11, 12, 12, 12, 13, 13, 13, 14, 14, 14, 15, 15, 15, 16, 16, 16, 17, 17,
17, 18, 18, 18, 19, 19, 19, 20, 20, 20, 21, 21, 21, 22, 22, 22, 23, 23, 23,
24, 24, 24, 25, 25, 25, 26, 26, 26, 27, 27, 27, 28, 28, 28, 29, 29, 29, 30,
30, 30, 31, 31, 31, 32, 32, 32, 33, 33, 33, 34, 34, 34, 35, 35, 35, 36, 36,
36, 37, 37, 37, 38, 38, 38, 39, 39,
};
constexpr std::array<int, 256> U_B = {
113, 113, 114, 114, 115, 115, 116, 116, 117, 117, 118, 118, 119, 119, 120, 120, 121, 121, 122,
122, 123, 123, 124, 124, 125, 125, 126, 126, 127, 127, 128, 128, 129, 129, 130, 130, 131, 131,
132, 132, 133, 133, 134, 134, 135, 135, 136, 136, 137, 137, 138, 138, 139, 139, 140, 140, 141,
141, 142, 142, 143, 143, 144, 144, 145, 145, 146, 146, 147, 147, 148, 148, 149, 149, 150, 150,
151, 151, 152, 152, 153, 153, 154, 154, 155, 155, 156, 156, 157, 157, 158, 158, 159, 159, 160,
160, 161, 161, 162, 162, 163, 163, 164, 164, 165, 165, 166, 166, 167, 167, 168, 168, 169, 169,
170, 170, 171, 171, 172, 172, 173, 173, 174, 174, 175, 175, 176, 176, 177, 177, 178, 178, 179,
179, 180, 180, 181, 181, 182, 182, 183, 183, 184, 184, 185, 185, 186, 186, 187, 187, 188, 188,
189, 189, 190, 190, 191, 191, 192, 192, 193, 193, 194, 194, 195, 195, 196, 196, 197, 197, 198,
198, 199, 199, 200, 200, 201, 201, 202, 202, 203, 203, 204, 204, 205, 205, 206, 206, 207, 207,
208, 208, 209, 209, 210, 210, 211, 211, 212, 212, 213, 213, 214, 214, 215, 215, 216, 216, 217,
217, 218, 218, 219, 219, 220, 220, 221, 221, 222, 222, 223, 223, 224, 224, 225, 225, 226, 226,
227, 227, 228, 228, 229, 229, 230, 230, 231, 231, 232, 232, 233, 233, 234, 234, 235, 235, 236,
236, 237, 237, 238, 238, 239, 239, 240, 240,
};
static constexpr int U(int r, int g, int b) {
return -U_R[r] - U_G[g] + U_B[b];
}
constexpr std::array<int, 256> V_R = {
89, 90, 90, 91, 91, 92, 92, 93, 93, 94, 94, 95, 95, 96, 96, 97, 97, 98, 98,
99, 99, 100, 100, 101, 101, 102, 102, 103, 103, 104, 104, 105, 105, 106, 106, 107, 107, 108,
108, 109, 109, 110, 110, 111, 111, 112, 112, 113, 113, 114, 114, 115, 115, 116, 116, 117, 117,
118, 118, 119, 119, 120, 120, 121, 121, 122, 122, 123, 123, 124, 124, 125, 125, 126, 126, 127,
127, 128, 128, 129, 129, 130, 130, 131, 131, 132, 132, 133, 133, 134, 134, 135, 135, 136, 136,
137, 137, 138, 138, 139, 139, 140, 140, 141, 141, 142, 142, 143, 143, 144, 144, 145, 145, 146,
146, 147, 147, 148, 148, 149, 149, 150, 150, 151, 151, 152, 152, 153, 153, 154, 154, 155, 155,
156, 156, 157, 157, 158, 158, 159, 159, 160, 160, 161, 161, 162, 162, 163, 163, 164, 164, 165,
165, 166, 166, 167, 167, 168, 168, 169, 169, 170, 170, 171, 171, 172, 172, 173, 173, 174, 174,
175, 175, 176, 176, 177, 177, 178, 178, 179, 179, 180, 180, 181, 181, 182, 182, 183, 183, 184,
184, 185, 185, 186, 186, 187, 187, 188, 188, 189, 189, 190, 190, 191, 191, 192, 192, 193, 193,
194, 194, 195, 195, 196, 196, 197, 197, 198, 198, 199, 199, 200, 200, 201, 201, 202, 202, 203,
203, 204, 205, 205, 206, 206, 207, 207, 208, 208, 209, 209, 210, 210, 211, 211, 212, 212, 213,
213, 214, 214, 215, 215, 216, 216, 217, 217,
};
constexpr std::array<int, 256> V_G = {
-57, -56, -56, -55, -55, -55, -54, -54, -53, -53, -52, -52, -52, -51, -51, -50, -50, -50, -49,
-49, -48, -48, -47, -47, -47, -46, -46, -45, -45, -45, -44, -44, -43, -43, -42, -42, -42, -41,
-41, -40, -40, -39, -39, -39, -38, -38, -37, -37, -37, -36, -36, -35, -35, -34, -34, -34, -33,
-33, -32, -32, -31, -31, -31, -30, -30, -29, -29, -29, -28, -28, -27, -27, -26, -26, -26, -25,
-25, -24, -24, -24, -23, -23, -22, -22, -21, -21, -21, -20, -20, -19, -19, -18, -18, -18, -17,
-17, -16, -16, -16, -15, -15, -14, -14, -13, -13, -13, -12, -12, -11, -11, -10, -10, -10, -9,
-9, -8, -8, -8, -7, -7, -6, -6, -5, -5, -5, -4, -4, -3, -3, -3, -2, -2, -1,
-1, 0, 0, 0, 0, 0, 1, 1, 2, 2, 2, 3, 3, 4, 4, 4, 5, 5, 6,
6, 7, 7, 7, 8, 8, 9, 9, 10, 10, 10, 11, 11, 12, 12, 12, 13, 13, 14,
14, 15, 15, 15, 16, 16, 17, 17, 17, 18, 18, 19, 19, 20, 20, 20, 21, 21, 22,
22, 23, 23, 23, 24, 24, 25, 25, 25, 26, 26, 27, 27, 28, 28, 28, 29, 29, 30,
30, 31, 31, 31, 32, 32, 33, 33, 33, 34, 34, 35, 35, 36, 36, 36, 37, 37, 38,
38, 38, 39, 39, 40, 40, 41, 41, 41, 42, 42, 43, 43, 44, 44, 44, 45, 45, 46,
46, 46, 47, 47, 48, 48, 49, 49, 49,
};
constexpr std::array<int, 256> V_B = {
18, 18, 18, 18, 18, 18, 18, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 20, 20, 20, 20,
20, 20, 20, 20, 20, 20, 20, 20, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 22, 22, 22, 22,
22, 22, 22, 22, 22, 22, 22, 22, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 24, 24, 24,
24, 24, 24, 24, 24, 24, 24, 24, 24, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 26, 26, 26,
26, 26, 26, 26, 26, 26, 26, 26, 26, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 28, 28,
28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 30, 30,
30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 32,
32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 34,
34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35,
36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37,
38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 39, 39, 39, 39,
};
static constexpr int V(int r, int g, int b) {
return V_R[r] - V_G[g] - V_B[b];
}
} // namespace YuvTable
std::vector<u16> Rgb2Yuv(const QImage& source, int width, int height) {
auto buffer = std::vector<u16>(width * height);
auto dest = buffer.begin();
bool write = false;
int py, pu, pv;
for (int j = 0; j < height; ++j) {
for (int i = 0; i < width; ++i) {
QRgb rgb = source.pixel(i, j);
int r = qRed(rgb);
int g = qGreen(rgb);
int b = qBlue(rgb);
// The following transformation is a reverse of the one in Y2R using ITU_Rec601
int y = YuvTable::Y(r, g, b);
int u = YuvTable::U(r, g, b);
int v = YuvTable::V(r, g, b);
if (write) {
pu = (pu + u) / 2;
pv = (pv + v) / 2;
*(dest++) =
static_cast<u16>(std::clamp(py, 0, 0xFF) | (std::clamp(pu, 0, 0xFF) << 8));
*(dest++) =
static_cast<u16>(std::clamp(y, 0, 0xFF) | (std::clamp(pv, 0, 0xFF) << 8));
} else {
py = y;
pu = u;
pv = v;
}
write = !write;
}
}
return buffer;
}
std::vector<u16> ProcessImage(const QImage& image, int width, int height, bool output_rgb = false,
bool flip_horizontal = false, bool flip_vertical = false) {
std::vector<u16> buffer(width * height);
if (image.isNull()) {
return buffer;
}
QImage scaled =
image.scaled(width, height, Qt::KeepAspectRatioByExpanding, Qt::SmoothTransformation);
QImage transformed =
scaled.copy((scaled.width() - width) / 2, (scaled.height() - height) / 2, width, height)
.mirrored(flip_horizontal, flip_vertical);
if (output_rgb) {
QImage converted = transformed.convertToFormat(QImage::Format_RGB16);
std::memcpy(buffer.data(), converted.bits(), width * height * sizeof(u16));
} else {
return CameraUtil::Rgb2Yuv(transformed, width, height);
}
return buffer;
}
} // namespace CameraUtil
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