summaryrefslogtreecommitdiff
path: root/src/resources/dye/dyepalette.cpp
blob: d5fab2550c8ce6a1195bff22bb4c3f91701f767b (plain) (blame)
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
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
/*
 *  The ManaPlus Client
 *  Copyright (C) 2007-2009  The Mana World Development Team
 *  Copyright (C) 2009-2010  The Mana Developers
 *  Copyright (C) 2011-2018  The ManaPlus Developers
 *
 *  This file is part of The ManaPlus Client.
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#include "resources/dye/dyepalette.h"

#include "logger.h"

#ifndef DYECMD
#include "resources/db/palettedb.h"
#endif  // DYECMD

#include "utils/stringutils.h"

#ifndef USE_SDL2
#include <cmath>
#endif  // USE_SDL2

PRAGMA48(GCC diagnostic push)
PRAGMA48(GCC diagnostic ignored "-Wshadow")
#ifndef SDL_BIG_ENDIAN
#include <SDL_endian.h>
#endif  // SDL_BYTEORDER
PRAGMA48(GCC diagnostic pop)

#ifdef SIMD_SUPPORTED
#include "utils/cpu.h"
#endif  // SIMD_SUPPORTED
#include "utils/foreach.h"

#include "debug.h"

DyeFunctionPtr DyePalette::funcReplaceSColor = nullptr;
DyeFunctionPtr DyePalette::funcReplaceSColorSse2 = nullptr;
DyeFunctionPtr DyePalette::funcReplaceSColorAvx2 = nullptr;
DyeFunctionPtr DyePalette::funcReplaceAColor = nullptr;
DyeFunctionPtr DyePalette::funcReplaceAColorSse2 = nullptr;
DyeFunctionPtr DyePalette::funcReplaceAColorAvx2 = nullptr;

#ifdef USE_OPENGL
DyeFunctionPtr DyePalette::funcReplaceSOGLColor = nullptr;
DyeFunctionPtr DyePalette::funcReplaceSOGLColorSse2 = nullptr;
DyeFunctionPtr DyePalette::funcReplaceSOGLColorAvx2 = nullptr;
DyeFunctionPtr DyePalette::funcReplaceAOGLColor = nullptr;
DyeFunctionPtr DyePalette::funcReplaceAOGLColorSse2 = nullptr;
DyeFunctionPtr DyePalette::funcReplaceAOGLColorAvx2 = nullptr;
#endif  // USE_OPENGL

DyePalette::DyePalette(const std::string &restrict description,
                       const uint8_t blockSize) :
    mColors()
{
    const size_t size = CAST_SIZE(description.length());
    if (size == 0)
        return;

    StringVect parts;
    splitToStringVector(parts, description.substr(1), ',');
    if (description[0] == '#')
    {
        FOR_EACH (StringVectCIter, it, parts)
        {
            DyeColor color(0, 0, 0, 0);
            hexToColor(*it, blockSize, color);
            mColors.push_back(color);
        }
        return;
    }
#ifndef DYECMD
    else if (description[0] == '@')
    {
        uint8_t alpha = 255;
        FOR_EACH (StringVectCIter, it, parts)
        {
            const std::string str = *it;
            if (str.empty())
                continue;
            if (str[0] == '+')
            {
                if (str.size() != 3)
                    continue;
                alpha = CAST_U8((hexDecode(str[1]) << 4) + hexDecode(str[2]));
                continue;
            }
            const DyeColor *const color = PaletteDB::getColor(str);
            if (color != nullptr)
            {
                DyeColor color2 = *color;
                color2.value[3] = alpha;
                mColors.push_back(color2);
            }
            else
            {
                DyeColor color2(0, 0, 0, 0);
                hexToColor(str, blockSize, color2);
                mColors.push_back(color2);
            }
        }
        return;
    }
#endif  // DYECMD

    logger->log("Error, invalid embedded palette: %s", description.c_str());
}

void DyePalette::hexToColor(const std::string &restrict hexStr,
                            const uint8_t blockSize,
                            DyeColor &color) noexcept2
{
    for (size_t i = 0, colorIdx = 0;
         i < blockSize && colorIdx < 4;
         i += 2, colorIdx ++)
    {
        color.value[colorIdx] = CAST_U8((
            hexDecode(hexStr[i]) << 4)
            + hexDecode(hexStr[i + 1]));
    }
    color.update();
}

unsigned int DyePalette::hexDecode(const signed char c) noexcept2
{
    if ('0' <= c && c <= '9')
        return c - '0';
    else if ('A' <= c && c <= 'F')
        return c - 'A' + 10;
    else if ('a' <= c && c <= 'f')
        return c - 'a' + 10;
    else
        return 0;
}

void DyePalette::getColor(const unsigned int intensity,
                          unsigned int (&restrict color)[3]) const restrict2
{
    if (intensity == 0)
    {
        color[0] = 0;
        color[1] = 0;
        color[2] = 0;
        return;
    }

    const int last = CAST_S32(mColors.size());
    if (last == 0)
        return;

    const int intLast = intensity * last;
    const int i = intLast / 255;
    const int t = intLast % 255;

    int j = t != 0 ? i : i - 1;

    if (j >= last)
        j = 0;

    // Get the exact color if any, the next color otherwise.
    const DyeColor &colorJ = mColors[j];
    const int r2 = colorJ.value[0];
    const int g2 = colorJ.value[1];
    const int b2 = colorJ.value[2];

    if (t == 0)
    {
        // Exact color.
        color[0] = r2;
        color[1] = g2;
        color[2] = b2;
        return;
    }

    // Get the previous color. First color is implicitly black.
    if (i > 0 && i < last + 1)
    {
        const DyeColor &colorI = mColors[i - 1];
        const int t2 = 255 - t;
        // Perform a linear interpolation.
        color[0] = (t2 * colorI.value[0] + t * r2) / 255;
        color[1] = (t2 * colorI.value[1] + t * g2) / 255;
        color[2] = (t2 * colorI.value[2] + t * b2) / 255;
    }
    else
    {
        // Perform a linear interpolation.
        color[0] = (t * r2) / 255;
        color[1] = (t * g2) / 255;
        color[2] = (t * b2) / 255;
    }
}

void DyePalette::getColor(double intensity,
                          int (&restrict color)[3]) const restrict2
{
    // Nothing to do here
    if (mColors.empty())
        return;

    // Force range
    if (intensity > 1.0)
        intensity = 1.0;
    else if (intensity < 0.0)
        intensity = 0.0;

    // Scale up
    intensity *= static_cast<double>(mColors.size() - 1);

    // Color indices
    const int i = CAST_S32(floor(intensity));
    const int j = CAST_S32(ceil(intensity));
    const DyeColor &colorI = mColors[i];

    if (i == j)
    {
        // Exact color.
        color[0] = colorI.value[0];
        color[1] = colorI.value[1];
        color[2] = colorI.value[2];
        return;
    }

    intensity -= i;
    const double rest = 1 - intensity;
    const DyeColor &colorJ = mColors[j];

    // Perform the interpolation.
    color[0] = CAST_S32(rest * colorI.value[0] +
        intensity * colorJ.value[0]);
    color[1] = CAST_S32(rest * colorI.value[1] +
        intensity * colorJ.value[1]);
    color[2] = CAST_S32(rest * colorI.value[2] +
        intensity * colorJ.value[2]);
}

void DyePalette::initFunctions()
{
#ifdef SIMD_SUPPORTED
    const uint32_t flags = Cpu::getFlags();
    if ((flags & Cpu::FEATURE_AVX2) != 0u)
    {
        funcReplaceSColor = &DyePalette::replaceSColorAvx2;
        funcReplaceSColorAvx2 = &DyePalette::replaceSColorAvx2;
        funcReplaceSColorSse2 = &DyePalette::replaceSColorSse2;
        funcReplaceAColor = &DyePalette::replaceAColorAvx2;
        funcReplaceAColorAvx2 = &DyePalette::replaceAColorAvx2;
        funcReplaceAColorSse2 = &DyePalette::replaceAColorSse2;

#ifdef USE_OPENGL
        funcReplaceSOGLColor = &DyePalette::replaceSOGLColorAvx2;
        funcReplaceSOGLColorAvx2 = &DyePalette::replaceSOGLColorAvx2;
        funcReplaceSOGLColorSse2 = &DyePalette::replaceSOGLColorSse2;
        funcReplaceAOGLColor = &DyePalette::replaceAOGLColorAvx2;
        funcReplaceAOGLColorAvx2 = &DyePalette::replaceAOGLColorAvx2;
        funcReplaceAOGLColorSse2 = &DyePalette::replaceAOGLColorSse2;
#endif  // USE_OPENGL
    }
    else if ((flags & Cpu::FEATURE_SSE2) != 0u)
    {
        funcReplaceSColor = &DyePalette::replaceSColorSse2;
        funcReplaceSColorAvx2 = &DyePalette::replaceSColorSse2;
        funcReplaceSColorSse2 = &DyePalette::replaceSColorSse2;
        funcReplaceAColor = &DyePalette::replaceAColorSse2;
        funcReplaceAColorAvx2 = &DyePalette::replaceAColorSse2;
        funcReplaceAColorSse2 = &DyePalette::replaceAColorSse2;

#ifdef USE_OPENGL
        funcReplaceSOGLColor = &DyePalette::replaceSOGLColorSse2;
        funcReplaceSOGLColorAvx2 = &DyePalette::replaceSOGLColorSse2;
        funcReplaceSOGLColorSse2 = &DyePalette::replaceSOGLColorSse2;
        funcReplaceAOGLColor = &DyePalette::replaceAOGLColorSse2;
        funcReplaceAOGLColorAvx2 = &DyePalette::replaceAOGLColorSse2;
        funcReplaceAOGLColorSse2 = &DyePalette::replaceAOGLColorSse2;
#endif  // USE_OPENGL
    }
    else
#endif  // SIMD_SUPPORTED
    {
        funcReplaceSColor = &DyePalette::replaceSColorDefault;
        funcReplaceSColorAvx2 = &DyePalette::replaceSColorDefault;
        funcReplaceSColorSse2 = &DyePalette::replaceSColorDefault;
        funcReplaceAColor = &DyePalette::replaceAColorDefault;
        funcReplaceAColorAvx2 = &DyePalette::replaceAColorDefault;
        funcReplaceAColorSse2 = &DyePalette::replaceAColorDefault;

#ifdef USE_OPENGL
        funcReplaceSOGLColor = &DyePalette::replaceSOGLColorDefault;
        funcReplaceSOGLColorAvx2 = &DyePalette::replaceSOGLColorDefault;
        funcReplaceSOGLColorSse2 = &DyePalette::replaceSOGLColorDefault;
        funcReplaceAOGLColor = &DyePalette::replaceAOGLColorDefault;
        funcReplaceAOGLColorAvx2 = &DyePalette::replaceAOGLColorDefault;
        funcReplaceAOGLColorSse2 = &DyePalette::replaceAOGLColorDefault;
#endif  // USE_OPENGL
    }
}