summaryrefslogblamecommitdiff
path: root/src/render/sdl2softwaregraphics.cpp
blob: 088aba98c4b90f088a79ec340ea1dbd775e73421 (plain) (tree)
1
2
3
4
5
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470



                                                            
                                                    




























                                                                         
                                              
 

                                

                                   























                                                                      
                                                                
                                                                    
                                                                     




















                                                     



                                        


















                                                                     
                                                         
 





                                                                    







                                                     

                                                

                        


                        

                     
















































                                                      

                                       
















                                                                













                                                                    
                        

























































































































































































                                                                               


                                                                






                                                                      
 
                                          








































































































                                                                               




                                                                        




























































                                                                          



                                                                      
 







                                                                            
















































                                                                          



                                                                      














                                       
                                               

 


                                                                      




                            







                                                                            




























                                                                 


                                                                             















                                                        

                                                                   


















                                                                      
                                                                            























































                                                                            
                                                                     

















                                                               
                                             

































































































































                                                                               

                                                                


















                                                                              

                                                                

























                                                                           

                                                                






































































































































































































































































































































































































































































                                                                               




                                                           

                                                           
                                                                 










                                                           

                                                         







                                                                        


                       








                                                                          



                                                                  
                                                

 




                                                                   
                                                

 
                   
/*
 *  The ManaPlus Client
 *  Copyright (C) 2004-2009  The Mana World Development Team
 *  Copyright (C) 2009-2010  The Mana Developers
 *  Copyright (C) 2011-2014  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/>.
 */

#ifdef USE_SDL2

#include "render/sdl2softwaregraphics.h"

#include "main.h"

#include "configuration.h"
#include "graphicsmanager.h"
#include "graphicsvertexes.h"
#include "logger.h"

#include "resources/imagehelper.h"
#include "resources/sdl2softwareimagehelper.h"

#include "utils/sdlcheckutils.h"

#include <guichan/sdl/sdlpixel.hpp>

#include "debug.h"

#if SDL_BYTEORDER == SDL_LIL_ENDIAN
static unsigned int *cR = nullptr;
static unsigned int *cG = nullptr;
static unsigned int *cB = nullptr;
#endif

SDL2SoftwareGraphics::SDL2SoftwareGraphics() :
    Graphics(),
    mRendererFlags(SDL_RENDERER_SOFTWARE),
    mSurface(nullptr),
    mOldPixel(0),
    mOldAlpha(0)
{
    mOpenGL = RENDER_SOFTWARE;
    mName = "Software";
}

SDL2SoftwareGraphics::~SDL2SoftwareGraphics()
{
}

bool SDL2SoftwareGraphics::drawRescaledImage(const Image *const image,
                                             int dstX, int dstY,
                                             const int desiredWidth,
                                             const int desiredHeight)
{
    FUNC_BLOCK("Graphics::drawRescaledImage", 1)
    // Check that preconditions for blitting are met.
    if (!mSurface || !image)
        return false;
    if (!image->mSDLSurface)
        return false;

    Image *const tmpImage = image->SDLgetScaledImage(
        desiredWidth, desiredHeight);

    if (!tmpImage)
        return false;
    if (!tmpImage->mSDLSurface)
        return false;

    const gcn::ClipRectangle &top = mClipStack.top();
    const SDL_Rect &bounds = image->mBounds;

    SDL_Rect srcRect =
    {
        static_cast<int16_t>(bounds.x),
        static_cast<int16_t>(bounds.y),
        static_cast<uint16_t>(bounds.w),
        static_cast<uint16_t>(bounds.h)
    };

    SDL_Rect dstRect =
    {
        static_cast<int16_t>(dstX + top.xOffset),
        static_cast<int16_t>(dstY + top.yOffset),
        0,
        0
    };

    const bool returnValue = !(SDL_BlitSurface(tmpImage->mSDLSurface,
        &srcRect, mSurface, &dstRect) < 0);

    delete tmpImage;

    return returnValue;
}

bool SDL2SoftwareGraphics::drawImage2(const Image *const image,
                                      int dstX, int dstY)
{
    return drawImageInline(image, dstX, dstY);
}

bool SDL2SoftwareGraphics::drawImageInline(const Image *const image,
                                           int dstX, int dstY)
{
    FUNC_BLOCK("Graphics::drawImage2", 1)
    // Check that preconditions for blitting are met.
    if (!mSurface || !image || !image->mSDLSurface)
        return false;

    const gcn::ClipRectangle &top = mClipStack.top();
    const SDL_Rect &bounds = image->mBounds;

    SDL_Surface *const src = image->mSDLSurface;

    int srcX = bounds.x;
    int srcY = bounds.y;
    dstX += top.xOffset;
    dstY += top.yOffset;

    int w = bounds.w;
    int h = bounds.h;
    if (srcX < 0)
    {
        w += srcX;
        dstX -= static_cast<int16_t>(srcX);
        srcX = 0;
    }
    const int maxw = src->w - srcX;
    if (maxw < w)
        w = maxw;

    if (srcY < 0)
    {
        h += srcY;
        dstY -= static_cast<int16_t>(srcY);
        srcY = 0;
    }
    const int maxh = src->h - srcY;
    if (maxh < h)
        h = maxh;

    const SDL_Rect *const clip = &mSurface->clip_rect;
    const int clipX = clip->x;
    const int clipY = clip->y;
    int dx = clipX - dstX;
    if (dx > 0)
    {
        w -= dx;
        dstX += static_cast<int16_t>(dx);
        srcX += dx;
    }
    dx = dstX + w - clipX - clip->w;
    if (dx > 0)
        w -= dx;

    int dy = clipY - dstY;
    if (dy > 0)
    {
        h -= dy;
        dstY += static_cast<int16_t>(dy);
        srcY += dy;
    }
    dy = dstY + h - clipY - clip->h;
    if (dy > 0)
        h -= dy;

    if (w > 0 && h > 0)
    {
        SDL_Rect srcRect =
        {
            static_cast<int16_t>(srcX),
            static_cast<int16_t>(srcY),
            static_cast<uint16_t>(w),
            static_cast<uint16_t>(h)
        };

        SDL_Rect dstRect =
        {
            static_cast<int16_t>(dstX),
            static_cast<int16_t>(dstY),
            static_cast<uint16_t>(w),
            static_cast<uint16_t>(h)
        };

        return SDL_LowerBlit(src, &srcRect, mSurface, &dstRect);
    }
    return 0;
}

void SDL2SoftwareGraphics::drawImageCached(const Image *const image,
                                           int x, int y)
{
    FUNC_BLOCK("Graphics::drawImageCached", 1)
    // Check that preconditions for blitting are met.
    if (!mSurface || !image || !image->mSDLSurface)
        return;

    const gcn::ClipRectangle &top = mClipStack.top();
    const SDL_Rect &bounds = image->mBounds;

    SDL_Surface *const src = image->mSDLSurface;

    int srcX = bounds.x;
    int srcY = bounds.y;
    x += top.xOffset;
    y += top.yOffset;

    int w = bounds.w;
    int h = bounds.h;
    if (srcX < 0)
    {
        w += srcX;
        x -= static_cast<int16_t>(srcX);
        srcX = 0;
    }
    const int maxw = src->w - srcX;
    if (maxw < w)
        w = maxw;

    if (srcY < 0)
    {
        h += srcY;
        y -= static_cast<int16_t>(srcY);
        srcY = 0;
    }
    const int maxh = src->h - srcY;
    if (maxh < h)
        h = maxh;

    const SDL_Rect *const clip = &mSurface->clip_rect;
    const int clipX = clip->x;
    const int clipY = clip->y;
    int dx = clipX - x;
    if (dx > 0)
    {
        w -= dx;
        x += static_cast<int16_t>(dx);
        srcX += dx;
    }
    dx = x + w - clipX - clip->w;
    if (dx > 0)
        w -= dx;

    int dy = clipY - y;
    if (dy > 0)
    {
        h -= dy;
        y += static_cast<int16_t>(dy);
        srcY += dy;
    }
    dy = y + h - clipY - clip->h;
    if (dy > 0)
        h -= dy;

    if (w > 0 && h > 0)
    {
        SDL_Rect srcRect =
        {
            static_cast<int16_t>(srcX),
            static_cast<int16_t>(srcY),
            static_cast<uint16_t>(w),
            static_cast<uint16_t>(h)
        };

        SDL_Rect dstRect =
        {
            static_cast<int16_t>(x),
            static_cast<int16_t>(y),
            static_cast<uint16_t>(w),
            static_cast<uint16_t>(h)
        };

        SDL_LowerBlit(src, &srcRect, mSurface, &dstRect);
    }
}

void SDL2SoftwareGraphics::drawPatternCached(const Image *const image,
                                             const int x, const int y,
                                             const int w, const int h)
{
    FUNC_BLOCK("Graphics::drawPatternCached", 1)
    // Check that preconditions for blitting are met.
    if (!mSurface || !image)
        return;
    if (!image->mSDLSurface)
        return;

    const SDL_Rect &bounds = image->mBounds;
    const int iw = bounds.w;
    const int ih = bounds.h;
    if (iw == 0 || ih == 0)
        return;

    const gcn::ClipRectangle &top = mClipStack.top();
    const int xOffset = top.xOffset + x;
    const int yOffset = top.yOffset + y;
    const int srcX = bounds.x;
    const int srcY = bounds.y;
    SDL_Surface *const src = image->mSDLSurface;
    const SDL_Rect *const clip = &mSurface->clip_rect;
    const int clipX = clip->x;
    const int clipY = clip->y;

    for (int py = 0; py < h; py += ih)
    {
        const int dh = (py + ih >= h) ? h - py : ih;
        int dstY = py + yOffset;
        int y2 = srcY;
        int h2 = dh;
        if (y2 < 0)
        {
            h2 += y2;
            dstY -= static_cast<int16_t>(y2);
            y2 = 0;
        }
        const int maxh = src->h - y2;
        if (maxh < h2)
            h2 = maxh;

        int dy = clipY - dstY;
        if (dy > 0)
        {
            h2 -= dy;
            dstY += static_cast<int16_t>(dy);
            y2 += dy;
        }
        dy = dstY + h2 - clipY - clip->h;
        if (dy > 0)
            h2 -= dy;

        if (h2 > 0)
        {
            for (int px = 0; px < w; px += iw)
            {
                const int dw = (px + iw >= w) ? w - px : iw;
                int dstX = px + xOffset;
                int x2 = srcX;
                int w2 = dw;
                if (x2 < 0)
                {
                    w2 += x2;
                    dstX -= static_cast<int16_t>(x2);
                    x2 = 0;
                }
                const int maxw = src->w - x2;
                if (maxw < w2)
                    w2 = maxw;

                int dx = clipX - dstX;
                if (dx > 0)
                {
                    w2 -= dx;
                    dstX += static_cast<int16_t>(dx);
                    x2 += dx;
                }
                dx = dstX + w2 - clipX - clip->w;
                if (dx > 0)
                    w2 -= dx;

                if (w2 > 0)
                {
                    SDL_Rect srcRect =
                    {
                        static_cast<int16_t>(x2),
                        static_cast<int16_t>(y2),
                        static_cast<uint16_t>(w2),
                        static_cast<uint16_t>(h2)
                    };

                    SDL_Rect dstRect =
                    {
                        static_cast<int16_t>(dstX),
                        static_cast<int16_t>(dstY),
                        static_cast<uint16_t>(w2),
                        static_cast<uint16_t>(h2)
                    };

                    SDL_LowerBlit(src, &srcRect, mSurface, &dstRect);
                }

//            SDL_BlitSurface(image->mSDLSurface, &srcRect, mWindow, &dstRect);
            }
        }
    }
}

void SDL2SoftwareGraphics::completeCache()
{
}

void SDL2SoftwareGraphics::drawPattern(const Image *const image,
                                       const int x, const int y,
                                       const int w, const int h)
{
    drawPatternInline(image, x, y, w, h);
}

void SDL2SoftwareGraphics::drawPatternInline(const Image *const image,
                                             const int x, const int y,
                                             const int w, const int h)
{
    FUNC_BLOCK("Graphics::drawPattern", 1)
    // Check that preconditions for blitting are met.
    if (!mSurface || !image)
        return;
    if (!image->mSDLSurface)
        return;

    const SDL_Rect &bounds = image->mBounds;
    const int iw = bounds.w;
    const int ih = bounds.h;
    if (iw == 0 || ih == 0)
        return;

    const gcn::ClipRectangle &top = mClipStack.top();
    const int xOffset = top.xOffset + x;
    const int yOffset = top.yOffset + y;
    const int srcX = bounds.x;
    const int srcY = bounds.y;
    SDL_Surface *const src = image->mSDLSurface;
    const SDL_Rect *const clip = &mSurface->clip_rect;
    const int clipX = clip->x;
    const int clipY = clip->y;

    for (int py = 0; py < h; py += ih)
    {
        const int dh = (py + ih >= h) ? h - py : ih;
        int dstY = py + yOffset;
        int y2 = srcY;
        int h2 = dh;
        if (y2 < 0)
        {
            h2 += y2;
            dstY -= static_cast<int16_t>(y2);
            y2 = 0;
        }
        const int maxh = src->h - y2;
        if (maxh < h2)
            h2 = maxh;

        int dy = clipY - dstY;
        if (dy > 0)
        {
            h2 -= dy;
            dstY += static_cast<int16_t>(dy);
            y2 += dy;
        }
        dy = dstY + h2 - clipY - clip->h;
        if (dy > 0)
            h2 -= dy;

        if (h2 > 0)
        {
            for (int px = 0; px < w; px += iw)
            {
                const int dw = (px + iw >= w) ? w - px : iw;
                int dstX = px + xOffset;
                int x2 = srcX;
                int w2 = dw;
                if (x2 < 0)
                {
                    w2 += x2;
                    dstX -= static_cast<int16_t>(x2);
                    x2 = 0;
                }
                const int maxw = src->w - x2;
                if (maxw < w2)
                    w2 = maxw;

                int dx = clipX - dstX;
                if (dx > 0)
                {
                    w2 -= dx;
                    dstX += static_cast<int16_t>(dx);
                    x2 += dx;
                }
                dx = dstX + w2 - clipX - clip->w;
                if (dx > 0)
                    w2 -= dx;

                if (w2 > 0)
                {
                    SDL_Rect srcRect =
                    {
                        static_cast<int16_t>(x2),
                        static_cast<int16_t>(y2),
                        static_cast<uint16_t>(w2),
                        static_cast<uint16_t>(h2)
                    };

                    SDL_Rect dstRect =
                    {
                        static_cast<int16_t>(dstX),
                        static_cast<int16_t>(dstY),
                        static_cast<uint16_t>(w2),
                        static_cast<uint16_t>(h2)
                    };

                    SDL_LowerBlit(src, &srcRect, mSurface, &dstRect);
                }

//            SDL_BlitSurface(image->mSDLSurface, &srcRect, mWindow, &dstRect);
            }
        }
    }
}

void SDL2SoftwareGraphics::drawRescaledPattern(const Image *const image,
                                               const int x, const int y,
                                               const int w, const int h,
                                               const int scaledWidth,
                                               const int scaledHeight)
{
    // Check that preconditions for blitting are met.
    if (!mSurface || !image)
        return;
    if (!image->mSDLSurface)
        return;

    if (scaledHeight == 0 || scaledWidth == 0)
        return;

    Image *const tmpImage = image->SDLgetScaledImage(
        scaledWidth, scaledHeight);
    if (!tmpImage)
        return;

    const SDL_Rect &bounds = tmpImage->mBounds;
    const int iw = bounds.w;
    const int ih = bounds.h;
    if (iw == 0 || ih == 0)
        return;

    const gcn::ClipRectangle &top = mClipStack.top();
    const int xOffset = top.xOffset + x;
    const int yOffset = top.yOffset + y;
    const int srcX = bounds.x;
    const int srcY = bounds.y;

    for (int py = 0; py < h; py += ih)  // Y position on pattern plane
    {
        const int dh = (py + ih >= h) ? h - py : ih;
        const int dstY = py + yOffset;

        for (int px = 0; px < w; px += iw)  // X position on pattern plane
        {
            const int dw = (px + iw >= w) ? w - px : iw;
            const int dstX = px + xOffset;

            SDL_Rect srcRect =
            {
                static_cast<int16_t>(srcX),
                static_cast<int16_t>(srcY),
                static_cast<uint16_t>(dw),
                static_cast<uint16_t>(dh)
            };

            SDL_Rect dstRect =
            {
                static_cast<int16_t>(dstX),
                static_cast<int16_t>(dstY),
                0,
                0
            };

            SDL_BlitSurface(tmpImage->mSDLSurface, &srcRect,
                            mSurface, &dstRect);
        }
    }

    delete tmpImage;
}

void SDL2SoftwareGraphics::calcPattern(ImageVertexes* const vert,
                                       const Image *const image,
                                       const int x, const int y,
                                       const int w, const int h) const
{
    calcPatternInline(vert, image, x, y, w, h);
}

void SDL2SoftwareGraphics::calcPatternInline(ImageVertexes* const vert,
                                             const Image *const image,
                                             const int x, const int y,
                                             const int w, const int h) const
{
    // Check that preconditions for blitting are met.
    if (!vert || !mSurface || !image || !image->mSDLSurface)
        return;

    const SDL_Rect &bounds = image->mBounds;
    const int iw = bounds.w;
    const int ih = bounds.h;
    if (iw == 0 || ih == 0)
        return;

    const gcn::ClipRectangle &top = mClipStack.top();
    const int xOffset = top.xOffset + x;
    const int yOffset = top.yOffset + y;
    const int srcX = bounds.x;
    const int srcY = bounds.y;

    for (int py = 0; py < h; py += ih)  // Y position on pattern plane
    {
        const int dh = (py + ih >= h) ? h - py : ih;
        const int dstY = py + yOffset;

        for (int px = 0; px < w; px += iw)  // X position on pattern plane
        {
            const int dw = (px + iw >= w) ? w - px : iw;
            const int dstX = px + xOffset;

            DoubleRect *const r = new DoubleRect();
            SDL_Rect &srcRect = r->src;
            srcRect.x = static_cast<int16_t>(srcX);
            srcRect.y = static_cast<int16_t>(srcY);
            srcRect.w = static_cast<uint16_t>(dw);
            srcRect.h = static_cast<uint16_t>(dh);
            SDL_Rect &dstRect = r->dst;
            dstRect.x = static_cast<int16_t>(dstX);
            dstRect.y = static_cast<int16_t>(dstY);

            if (SDL_FakeUpperBlit(image->mSDLSurface, &srcRect,
                mSurface, &dstRect) == 1)
            {
                vert->sdl.push_back(r);
            }
            else
            {
                delete r;
            }
        }
    }
}

void SDL2SoftwareGraphics::calcPattern(ImageCollection* const vertCol,
                                       const Image *const image,
                                       const int x, const int y,
                                       const int w, const int h) const
{
    ImageVertexes *vert = nullptr;
    if (vertCol->currentImage != image)
    {
        vert = new ImageVertexes();
        vertCol->currentImage = image;
        vertCol->currentVert = vert;
        vert->image = image;
        vertCol->draws.push_back(vert);
    }
    else
    {
        vert = vertCol->currentVert;
    }

    calcPatternInline(vert, image, x, y, w, h);
}

void SDL2SoftwareGraphics::calcTileVertexes(ImageVertexes *const vert,
                                            const Image *const image,
                                            int x, int y) const
{
    vert->image = image;
    calcTileSDL(vert, x, y);
}

void SDL2SoftwareGraphics::calcTileVertexesInline(ImageVertexes *const vert,
                                                  const Image *const image,
                                                  int x, int y) const
{
    vert->image = image;
    calcTileSDL(vert, x, y);
}

void SDL2SoftwareGraphics::calcTileSDL(ImageVertexes *const vert,
                                       int x, int y) const
{
    // Check that preconditions for blitting are met.
    if (!vert || !vert->image || !vert->image->mSDLSurface)
        return;

    const Image *const image = vert->image;
    const gcn::ClipRectangle &top = mClipStack.top();
    const SDL_Rect &bounds = image->mBounds;

    DoubleRect *rect = new DoubleRect();
    rect->src.x = static_cast<int16_t>(bounds.x);
    rect->src.y = static_cast<int16_t>(bounds.y);
    rect->src.w = static_cast<uint16_t>(bounds.w);
    rect->src.h = static_cast<uint16_t>(bounds.h);
    rect->dst.x = static_cast<int16_t>(x + top.xOffset);
    rect->dst.y = static_cast<int16_t>(y + top.yOffset);
    if (SDL_FakeUpperBlit(image->mSDLSurface, &rect->src,
        mSurface, &rect->dst) == 1)
    {
        vert->sdl.push_back(rect);
    }
    else
    {
        delete rect;
    }
}

void SDL2SoftwareGraphics::calcTileCollection(ImageCollection *const vertCol,
                                              const Image *const image,
                                              int x, int y)
{
    if (vertCol->currentImage != image)
    {
        ImageVertexes *const vert = new ImageVertexes();
        vertCol->currentImage = image;
        vertCol->currentVert = vert;
        vert->image = image;
        vertCol->draws.push_back(vert);
        calcTileSDL(vert, x, y);
    }
    else
    {
        calcTileSDL(vertCol->currentVert, x, y);
    }
}

void SDL2SoftwareGraphics::drawTileCollection(const ImageCollection
                                              *const vertCol)
{
    const ImageVertexesVector &draws = vertCol->draws;
    const ImageCollectionCIter it_end = draws.end();
    for (ImageCollectionCIter it = draws.begin(); it != it_end; ++ it)
    {
        const ImageVertexes *const vert = *it;
        const Image *const img = vert->image;
        const DoubleRects *const rects = &vert->sdl;
        DoubleRects::const_iterator it2 = rects->begin();
        const DoubleRects::const_iterator it2_end = rects->end();
        while (it2 != it2_end)
        {
            SDL_LowerBlit(img->mSDLSurface, &(*it2)->src,
                mSurface, &(*it2)->dst);
            ++ it2;
        }
    }
}

void SDL2SoftwareGraphics::drawTileVertexes(const ImageVertexes *const vert)
{
    // vert and img must be != 0
    const Image *const img = vert->image;
    const DoubleRects *const rects = &vert->sdl;
    DoubleRects::const_iterator it = rects->begin();
    const DoubleRects::const_iterator it_end = rects->end();
    while (it != it_end)
    {
        SDL_LowerBlit(img->mSDLSurface, &(*it)->src, mSurface, &(*it)->dst);
        ++ it;
    }
}

void SDL2SoftwareGraphics::updateScreen()
{
    BLOCK_START("Graphics::updateScreen")
    SDL_UpdateWindowSurfaceRects(mWindow, &mRect, 1);
    BLOCK_END("Graphics::updateScreen")
}

SDL_Surface *SDL2SoftwareGraphics::getScreenshot()
{
#if SDL_BYTEORDER == SDL_BIG_ENDIAN
    const int rmask = 0xff000000;
    const int gmask = 0x00ff0000;
    const int bmask = 0x0000ff00;
#else
    const int rmask = 0x000000ff;
    const int gmask = 0x0000ff00;
    const int bmask = 0x00ff0000;
#endif
    const int amask = 0x00000000;

    SDL_Surface *const screenshot = MSDL_CreateRGBSurface(SDL_SWSURFACE,
        mRect.w, mRect.h, 24, rmask, gmask, bmask, amask);

    if (screenshot)
        SDL_BlitSurface(mSurface, nullptr, screenshot, nullptr);

    return screenshot;
}

bool SDL2SoftwareGraphics::drawNet(const int x1, const int y1,
                                   const int x2, const int y2,
                                   const int width, const int height)
{
    // +++ need use SDL_RenderDrawLines
    for (int y = y1; y < y2; y += height)
        drawLine(x1, y, x2, y);

    for (int x = x1; x < x2; x += width)
        drawLine(x, y1, x, y2);

    return true;
}

void SDL2SoftwareGraphics::calcWindow(ImageCollection *const vertCol,
                                      const int x, const int y,
                                      const int w, const int h,
                                      const ImageRect &imgRect)
{
    ImageVertexes *vert = nullptr;
    Image *const image = imgRect.grid[4];
    if (vertCol->currentImage != image)
    {
        vert = new ImageVertexes();
        vertCol->currentImage = image;
        vertCol->currentVert = vert;
        vert->image = image;
        vertCol->draws.push_back(vert);
    }
    else
    {
        vert = vertCol->currentVert;
    }
    calcImageRect(vert, x, y, w, h, imgRect);
}

int SDL2SoftwareGraphics::SDL_FakeUpperBlit(const SDL_Surface *const src,
                                            SDL_Rect *const srcrect,
                                            const SDL_Surface *const dst,
                                            SDL_Rect *dstrect) const
{
    int srcx, srcy, w, h;

    // Make sure the surfaces aren't locked
    if (!src || !dst)
        return -1;

    if (!srcrect || !dstrect)
        return -1;

    srcx = srcrect->x;
    w = srcrect->w;
    if (srcx < 0)
    {
        w += srcx;
        dstrect->x -= static_cast<int16_t>(srcx);
        srcx = 0;
    }
    int maxw = src->w - srcx;
    if (maxw < w)
        w = maxw;

    srcy = srcrect->y;
    h = srcrect->h;
    if (srcy < 0)
    {
        h += srcy;
        dstrect->y -= static_cast<int16_t>(srcy);
        srcy = 0;
    }
    int maxh = src->h - srcy;
    if (maxh < h)
        h = maxh;

    const SDL_Rect *const clip = &dst->clip_rect;
    const int clipX = clip->x;
    const int clipY = clip->y;
    int dx = clipX - dstrect->x;
    if (dx > 0)
    {
        w -= dx;
        dstrect->x += static_cast<int16_t>(dx);
        srcx += dx;
    }
    dx = dstrect->x + w - clipX - clip->w;
    if (dx > 0)
        w -= dx;

    int dy = clipY - dstrect->y;
    if (dy > 0)
    {
        h -= dy;
        dstrect->y += static_cast<int16_t>(dy);
        srcy += dy;
    }
    dy = dstrect->y + h - clipY - clip->h;
    if (dy > 0)
        h -= dy;

    if (w > 0 && h > 0)
    {
        if (srcrect)
        {
            srcrect->x = static_cast<int16_t>(srcx);
            srcrect->y = static_cast<int16_t>(srcy);
            srcrect->w = static_cast<int16_t>(w);
            srcrect->h = static_cast<int16_t>(h);
        }
        dstrect->w = static_cast<int16_t>(w);
        dstrect->h = static_cast<int16_t>(h);

        return 1;
//        return SDL_LowerBlit(src, &sr, dst, dstrect);
    }
    dstrect->w = dstrect->h = 0;
    return 0;
}

void SDL2SoftwareGraphics::fillRectangle(const gcn::Rectangle &rectangle)
{
    FUNC_BLOCK("Graphics::fillRectangle", 1)
    if (mClipStack.empty())
        return;

    const gcn::ClipRectangle& top = mClipStack.top();

    gcn::Rectangle area = rectangle;
    area.x += top.xOffset;
    area.y += top.yOffset;

    if (!area.isIntersecting(top))
        return;

    if (mAlpha)
    {
        const int x1 = area.x > top.x ? area.x : top.x;
        const int y1 = area.y > top.y ? area.y : top.y;
        const int x2 = area.x + area.width < top.x + top.width ?
            area.x + area.width : top.x + top.width;
        const int y2 = area.y + area.height < top.y + top.height ?
            area.y + area.height : top.y + top.height;
        int x, y;

        SDL_LockSurface(mSurface);

        const int bpp = mSurface->format->BytesPerPixel;
        const uint32_t pixel = SDL_MapRGB(mSurface->format,
            static_cast<uint8_t>(mColor.r), static_cast<uint8_t>(mColor.g),
            static_cast<uint8_t>(mColor.b));

        switch (bpp)
        {
            case 1:
                for (y = y1; y < y2; y++)
                {
                    uint8_t *const p = static_cast<uint8_t *>(mSurface->pixels)
                        + y * mSurface->pitch;
                    for (x = x1; x < x2; x++)
                        *(p + x) = static_cast<uint8_t>(pixel);
                }
                break;
            case 2:
                for (y = y1; y < y2; y++)
                {
                    uint8_t *const p0 = static_cast<uint8_t *>(
                        mSurface->pixels) + y * mSurface->pitch;
                    for (x = x1; x < x2; x++)
                    {
                        uint8_t *const p = p0 + x * 2;
                        *reinterpret_cast<uint16_t *>(p) = gcn::SDLAlpha16(
                            static_cast<uint16_t>(pixel),
                            *reinterpret_cast<uint16_t *>(p),
                            static_cast<uint8_t>(mColor.a), mSurface->format);
                    }
                }
                break;
            case 3:
            {
                const int ca = 255 - mColor.a;
                const int cr = mColor.r * mColor.a;
                const int cg = mColor.g * mColor.a;
                const int cb = mColor.b * mColor.a;

                for (y = y1; y < y2; y++)
                {
                    uint8_t *const p0 = static_cast<uint8_t *>(
                        mSurface->pixels) + y * mSurface->pitch;
                    for (x = x1; x < x2; x++)
                    {
                        uint8_t *const p = p0 + x * 3;
#if SDL_BYTEORDER == SDL_BIG_ENDIAN
                        p[2] = static_cast<uint8_t>((p[2] * ca + cb) >> 8);
                        p[1] = static_cast<uint8_t>((p[1] * ca + cg) >> 8);
                        p[0] = static_cast<uint8_t>((p[0] * ca + cr) >> 8);
#else
                        p[0] = static_cast<uint8_t>((p[0] * ca + cb) >> 8);
                        p[1] = static_cast<uint8_t>((p[1] * ca + cg) >> 8);
                        p[2] = static_cast<uint8_t>((p[2] * ca + cr) >> 8);
#endif
                    }
                }
                break;
            }
            case 4:
            {
#if SDL_BYTEORDER == SDL_BIG_ENDIAN
                const unsigned pb = (pixel & 0xff) * mColor.a;
                const unsigned pg = (pixel & 0xff00) * mColor.a;
                const unsigned pr = (pixel & 0xff0000) * mColor.a;
                const unsigned a1 = (255 - mColor.a);

                for (y = y1; y < y2; y++)
                {
                    uint8_t *const p0 = static_cast<uint8_t *>(
                        mSurface->pixels) + y * mSurface->pitch;
                    for (x = x1; x < x2; x++)
                    {
                        uint8_t *p = p0 + x * 4;
                        uint32_t dst = *reinterpret_cast<uint32_t *>(p);
                        const unsigned int b = (pb + (dst & 0xff) * a1) >> 8;
                        const unsigned int g = (pg + (dst & 0xff00) * a1) >> 8;
                        const unsigned int r = (pr
                            + (dst & 0xff0000) * a1) >> 8;

                        *reinterpret_cast<uint32_t *>(p) = ((b & 0xff)
                            | (g & 0xff00) | (r & 0xff0000));
                    }
                }
#else
                if (!cR)
                {
                    cR = new unsigned int[0x100];
                    cG = new unsigned int[0x100];
                    cB = new unsigned int[0x100];
                    mOldPixel = 0;
                    mOldAlpha = mColor.a;
                }

                const SDL_PixelFormat * const format = mSurface->format;
                const unsigned rMask = format->Rmask;
                const unsigned gMask = format->Gmask;
                const unsigned bMask = format->Bmask;
//                const unsigned aMask = format->Amask;
                unsigned rShift = rMask / 0xff;
                unsigned gShift = gMask / 0xff;
                unsigned bShift = bMask / 0xff;
                if (!rShift)
                    rShift = 1;
                if (!gShift)
                    gShift = 1;
                if (!bShift)
                    bShift = 1;
                if (pixel != mOldPixel || mColor.a != mOldAlpha)
                {
                    const unsigned pb = (pixel & bMask) * mColor.a;
                    const unsigned pg = (pixel & gMask) * mColor.a;
                    const unsigned pr = (pixel & rMask) * mColor.a;
                    const unsigned a0 = (255 - mColor.a);

                    const unsigned int a1 = a0 * bShift;
                    const unsigned int a2 = a0 * gShift;
                    const unsigned int a3 = a0 * rShift;

                    for (int f = 0; f <= 0xff; f ++)
                    {
                        cB[f] = ((pb + f * a1) >> 8) & bMask;
                        cG[f] = ((pg + f * a2) >> 8) & gMask;
                        cR[f] = ((pr + f * a3) >> 8) & rMask;
                    }

                    mOldPixel = pixel;
                    mOldAlpha = mColor.a;
                }

                for (y = y1; y < y2; y++)
                {
                    uint32_t *const p0 = reinterpret_cast<uint32_t*>(
                        static_cast<uint8_t*>(mSurface->pixels)
                        + y * mSurface->pitch);
                    for (x = x1; x < x2; x++)
                    {
                        uint32_t *const p = p0 + x;
                        const uint32_t dst = *p;
                        *p = cB[dst & bMask / bShift]
                            | cG[(dst & gMask) / gShift]
                            | cR[(dst & rMask) / rShift];
                    }
                }
#endif
                break;
            }
            default:
                break;
        }

        SDL_UnlockSurface(mSurface);
    }
    else
    {
        SDL_Rect rect =
        {
            static_cast<int16_t>(area.x),
            static_cast<int16_t>(area.y),
            static_cast<uint16_t>(area.width),
            static_cast<uint16_t>(area.height)
        };

        const uint32_t color = SDL_MapRGBA(mSurface->format,
            static_cast<int8_t>(mColor.r),
            static_cast<int8_t>(mColor.g),
            static_cast<int8_t>(mColor.b),
            static_cast<int8_t>(mColor.a));
        SDL_FillRect(mSurface, &rect, color);
    }
}

void SDL2SoftwareGraphics::_beginDraw()
{
    pushClipArea(gcn::Rectangle(0, 0, mRect.w, mRect.h));
}

void SDL2SoftwareGraphics::_endDraw()
{
    popClipArea();
}

bool SDL2SoftwareGraphics::pushClipArea(gcn::Rectangle area)
{
    const bool result = gcn::Graphics::pushClipArea(area);

    const gcn::ClipRectangle &carea = mClipStack.top();
    const SDL_Rect rect =
    {
        static_cast<int32_t>(carea.x),
        static_cast<int32_t>(carea.y),
        static_cast<int32_t>(carea.width),
        static_cast<int32_t>(carea.height)
    };
    SDL_SetClipRect(mSurface, &rect);
    return result;
}

void SDL2SoftwareGraphics::popClipArea()
{
    gcn::Graphics::popClipArea();

    if (mClipStack.empty())
        return;

    const gcn::ClipRectangle &carea = mClipStack.top();
    const SDL_Rect rect =
    {
        static_cast<int32_t>(carea.x),
        static_cast<int32_t>(carea.y),
        static_cast<int32_t>(carea.width),
        static_cast<int32_t>(carea.height)
    };

    SDL_SetClipRect(mSurface, &rect);
}

void SDL2SoftwareGraphics::drawPoint(int x, int y)
{
    if (mClipStack.empty())
        return;

    const gcn::ClipRectangle& top = mClipStack.top();

    x += top.xOffset;
    y += top.yOffset;

    if (!top.isPointInRect(x, y))
        return;

    if (mAlpha)
        SDLputPixelAlpha(mSurface, x, y, mColor);
    else
        SDLputPixel(mSurface, x, y, mColor);
}

void SDL2SoftwareGraphics::drawHLine(int x1, int y, int x2)
{
    if (mClipStack.empty())
        return;

    const gcn::ClipRectangle& top = mClipStack.top();

    const int xOffset = top.xOffset;
    x1 += xOffset;
    y += top.yOffset;
    x2 += xOffset;

    const int topY = top.y;
    if (y < topY || y >= topY + top.height)
        return;

    if (x1 > x2)
    {
        x1 ^= x2;
        x2 ^= x1;
        x1 ^= x2;
    }

    const int topX = top.x;
    if (topX > x1)
    {
        if (topX > x2)
            return;

        x1 = topX;
    }

    const int sumX = topX + top.width;
    if (sumX <= x2)
    {
        if (sumX <= x1)
            return;

        x2 = sumX -1;
    }

    const int bpp = mSurface->format->BytesPerPixel;

    SDL_LockSurface(mSurface);

    uint8_t *p = static_cast<uint8_t*>(mSurface->pixels)
        + y * mSurface->pitch + x1 * bpp;

    const uint32_t pixel = SDL_MapRGB(mSurface->format,
        static_cast<uint8_t>(mColor.r),
        static_cast<uint8_t>(mColor.g),
        static_cast<uint8_t>(mColor.b));
    switch (bpp)
    {
        case 1:
            for (; x1 <= x2; ++x1)
                *(p++) = static_cast<uint8_t>(pixel);
            break;

        case 2:
        {
            uint16_t* q = reinterpret_cast<uint16_t*>(p);
            for (; x1 <= x2; ++x1)
                *(q++) = pixel;
            break;
        }

        case 3:
        {
            const uint8_t b0 = static_cast<uint8_t>((pixel >> 16) & 0xff);
            const uint8_t b1 = static_cast<uint8_t>((pixel >> 8) & 0xff);
            const uint8_t b2 = static_cast<uint8_t>(pixel & 0xff);
#if SDL_BYTEORDER == SDL_BIG_ENDIAN
            for (; x1 <= x2; ++x1)
            {
                p[0] = b0;
                p[1] = b1;
                p[2] = b2;
                p += 3;
            }
#else
            for (; x1 <= x2; ++x1)
            {
                p[0] = b2;
                p[1] = b1;
                p[2] = b0;
                p += 3;
            }
#endif
            break;
        }

        case 4:
        {
            uint32_t *q = reinterpret_cast<uint32_t*>(p);
            if (mAlpha)
            {
                unsigned char a = static_cast<unsigned char>(mColor.a);
                unsigned char a1 = 255 - a;
                const int b0 = (pixel & 0xff) * a;
                const int g0 = (pixel & 0xff00) * a;
                const int r0 = (pixel & 0xff0000) * a;
                for (; x1 <= x2; ++x1)
                {
                    const unsigned int b = (b0 + (*q & 0xff) * a1) >> 8;
                    const unsigned int g = (g0 + (*q & 0xff00) * a1) >> 8;
                    const unsigned int r = (r0 + (*q & 0xff0000) * a1) >> 8;
                    *q = (b & 0xff) | (g & 0xff00) | (r & 0xff0000);

                    q++;
                }
            }
            else
            {
                for (; x1 <= x2; ++x1)
                    *(q++) = pixel;
            }
            break;
        }
        default:
            break;
    }  // end switch

    SDL_UnlockSurface(mSurface);
}

void SDL2SoftwareGraphics::drawVLine(int x, int y1, int y2)
{
    if (mClipStack.empty())
        return;

    const gcn::ClipRectangle& top = mClipStack.top();

    const int yOffset = top.yOffset;
    x += top.xOffset;
    y1 += yOffset;
    y2 += yOffset;

    if (x < top.x || x >= top.x + top.width)
        return;

    if (y1 > y2)
    {
        y1 ^= y2;
        y2 ^= y1;
        y1 ^= y2;
    }

    if (top.y > y1)
    {
        if (top.y > y2)
            return;

        y1 = top.y;
    }

    const int sumY = top.y + top.height;
    if (sumY <= y2)
    {
        if (sumY <= y1)
            return;

        y2 = sumY - 1;
    }

    const int bpp = mSurface->format->BytesPerPixel;

    SDL_LockSurface(mSurface);

    uint8_t *p = static_cast<uint8_t*>(mSurface->pixels)
        + y1 * mSurface->pitch + x * bpp;

    const uint32_t pixel = SDL_MapRGB(mSurface->format,
        static_cast<uint8_t>(mColor.r),
        static_cast<uint8_t>(mColor.g),
        static_cast<uint8_t>(mColor.b));

    const int pitch = mSurface->pitch;
    switch (bpp)
    {
        case 1:
            for (; y1 <= y2; ++y1)
            {
                *p = static_cast<uint8_t>(pixel);
                p += pitch;
            }
            break;

        case 2:
            for (; y1 <= y2; ++ y1)
            {
                *reinterpret_cast<uint16_t*>(p)
                    = static_cast<uint16_t>(pixel);
                p += pitch;
            }
            break;

        case 3:
        {
            const uint8_t b0 = static_cast<uint8_t>((pixel >> 16) & 0xff);
            const uint8_t b1 = static_cast<uint8_t>((pixel >> 8) & 0xff);
            const uint8_t b2 = static_cast<uint8_t>(pixel & 0xff);
#if SDL_BYTEORDER == SDL_BIG_ENDIAN
            for (; y1 <= y2; ++y1)
            {
                p[0] = b0;
                p[1] = b1;
                p[2] = b2;
                p += pitch;
            }
#else
            for (; y1 <= y2; ++y1)
            {
                p[0] = b2;
                p[1] = b1;
                p[2] = b0;
                p += pitch;
            }
#endif
            break;
        }

        case 4:
        {
            if (mAlpha)
            {
                unsigned char a = static_cast<unsigned char>(mColor.a);
                unsigned char a1 = 255 - a;
                const int b0 = (pixel & 0xff) * a;
                const int g0 = (pixel & 0xff00) * a;
                const int r0 = (pixel & 0xff0000) * a;
                for (; y1 <= y2; ++y1)
                {
                    const unsigned int dst = *reinterpret_cast<uint32_t*>(p);
                    const unsigned int b = (b0 + (dst & 0xff) * a1) >> 8;
                    const unsigned int g = (g0 + (dst & 0xff00) * a1) >> 8;
                    const unsigned int r = (r0 + (dst & 0xff0000) * a1) >> 8;
                    *reinterpret_cast<uint32_t*>(p) =
                        (b & 0xff) | (g & 0xff00) | (r & 0xff0000);

                    p += pitch;
                }
            }
            else
            {
                for (; y1 <= y2; ++y1)
                {
                    *reinterpret_cast<uint32_t*>(p) = pixel;
                    p += pitch;
                }
            }
            break;
        }

        default:
            break;
    }  // end switch

    SDL_UnlockSurface(mSurface);
}

void SDL2SoftwareGraphics::drawRectangle(const gcn::Rectangle &rectangle)
{
    const int x1 = rectangle.x;
    const int x2 = x1 + rectangle.width - 1;
    const int y1 = rectangle.y;
    const int y2 = y1 + rectangle.height - 1;

    drawHLine(x1, y1, x2);
    drawHLine(x1, y2, x2);

    drawVLine(x1, y1, y2);
    drawVLine(x2, y1, y2);
}

void SDL2SoftwareGraphics::drawLine(int x1, int y1, int x2, int y2)
{
    if (x1 == x2)
    {
        drawVLine(x1, y1, y2);
        return;
    }
    if (y1 == y2)
    {
        drawHLine(x1, y1, x2);
        return;
    }
}

bool SDL2SoftwareGraphics::setVideoMode(const int w, const int h,
                                        const int scale,
                                        const int bpp,
                                        const bool fs,
                                        const bool hwaccel,
                                        const bool resize,
                                        const bool noFrame)
{
    setMainFlags(w, h, scale, bpp, fs, hwaccel, resize, noFrame);

    if (!(mWindow = graphicsManager.createWindow(w, h, bpp,
        getSoftwareFlags())))
    {
        mRect.w = 0;
        mRect.h = 0;
        mSurface = nullptr;
        return false;
    }

    mSurface = SDL_GetWindowSurface(mWindow);
    imageHelper->dumpSurfaceFormat(mSurface);
    SDL2SoftwareImageHelper::setFormat(mSurface->format);

    int w1 = 0;
    int h1 = 0;
    SDL_GetWindowSize(mWindow, &w1, &h1);
    mRect.w = w1;
    mRect.h = h1;

    mRenderer = graphicsManager.createRenderer(mWindow, mRendererFlags);
    return videoInfo();
}

bool SDL2SoftwareGraphics::resizeScreen(const int width, const int height)
{
    const bool ret = Graphics::resizeScreen(width, height);

    mSurface = SDL_GetWindowSurface(mWindow);
    SDL2SoftwareImageHelper::setFormat(mSurface->format);
    return ret;
}

void SDL2SoftwareGraphics::drawImageRect(const int x, const int y,
                                         const int w, const int h,
                                         const ImageRect &imgRect)
{
    #include "render/graphics_drawImageRect.hpp"
}

void SDL2SoftwareGraphics::calcImageRect(ImageVertexes *const vert,
                                         const int x, const int y,
                                         const int w, const int h,
                                         const ImageRect &imgRect)
{
    #include "render/graphics_calcImageRect.hpp"
}

#endif  // USE_SDL2