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00012 #include "stdafx.h"
00013 #include "fileio_func.h"
00014 #include "spriteloader/grf.hpp"
00015 #include "gfx_func.h"
00016 #include "zoom_func.h"
00017 #include "settings_type.h"
00018 #include "blitter/factory.hpp"
00019 #include "core/math_func.hpp"
00020 #include "core/mem_func.hpp"
00021
00022 #include "table/sprites.h"
00023 #include "table/palette_convert.h"
00024
00025
00026 uint _sprite_cache_size = 4;
00027
00028 typedef SimpleTinyEnumT<SpriteType, byte> SpriteTypeByte;
00029
00030 struct SpriteCache {
00031 void *ptr;
00032 size_t file_pos;
00033 uint32 id;
00034 uint16 file_slot;
00035 int16 lru;
00036 SpriteTypeByte type;
00037 bool warned;
00038 byte container_ver;
00039 };
00040
00041
00042 static uint _spritecache_items = 0;
00043 static SpriteCache *_spritecache = NULL;
00044
00045
00046 static inline SpriteCache *GetSpriteCache(uint index)
00047 {
00048 return &_spritecache[index];
00049 }
00050
00051 static inline bool IsMapgenSpriteID(SpriteID sprite)
00052 {
00053 return IsInsideMM(sprite, 4845, 4882);
00054 }
00055
00056 static SpriteCache *AllocateSpriteCache(uint index)
00057 {
00058 if (index >= _spritecache_items) {
00059
00060 uint items = Align(index + 1, 1024);
00061
00062 DEBUG(sprite, 4, "Increasing sprite cache to %u items (" PRINTF_SIZE " bytes)", items, items * sizeof(*_spritecache));
00063
00064 _spritecache = ReallocT(_spritecache, items);
00065
00066
00067 memset(_spritecache + _spritecache_items, 0, (items - _spritecache_items) * sizeof(*_spritecache));
00068 _spritecache_items = items;
00069 }
00070
00071 return GetSpriteCache(index);
00072 }
00073
00074
00075 struct MemBlock {
00076 size_t size;
00077 byte data[];
00078 };
00079
00080 static uint _sprite_lru_counter;
00081 static MemBlock *_spritecache_ptr;
00082 static int _compact_cache_counter;
00083
00084 static void CompactSpriteCache();
00085 static void *AllocSprite(size_t mem_req);
00086
00093 bool SkipSpriteData(byte type, uint16 num)
00094 {
00095 if (type & 2) {
00096 FioSkipBytes(num);
00097 } else {
00098 while (num > 0) {
00099 int8 i = FioReadByte();
00100 if (i >= 0) {
00101 int size = (i == 0) ? 0x80 : i;
00102 if (size > num) return false;
00103 num -= size;
00104 FioSkipBytes(size);
00105 } else {
00106 i = -(i >> 3);
00107 num -= i;
00108 FioReadByte();
00109 }
00110 }
00111 }
00112 return true;
00113 }
00114
00115
00116 bool SpriteExists(SpriteID id)
00117 {
00118
00119 if (id == 0) return true;
00120 if (id >= _spritecache_items) return false;
00121 return !(GetSpriteCache(id)->file_pos == 0 && GetSpriteCache(id)->file_slot == 0);
00122 }
00123
00129 SpriteType GetSpriteType(SpriteID sprite)
00130 {
00131 if (!SpriteExists(sprite)) return ST_INVALID;
00132 return GetSpriteCache(sprite)->type;
00133 }
00134
00140 uint GetOriginFileSlot(SpriteID sprite)
00141 {
00142 if (!SpriteExists(sprite)) return 0;
00143 return GetSpriteCache(sprite)->file_slot;
00144 }
00145
00154 uint GetMaxSpriteID()
00155 {
00156 return _spritecache_items;
00157 }
00158
00159 static bool ResizeSpriteIn(SpriteLoader::Sprite *sprite, ZoomLevel src, ZoomLevel tgt)
00160 {
00161 uint8 scaled_1 = UnScaleByZoom(1, (ZoomLevel)(tgt - src));
00162
00163
00164 if (sprite[src].width * scaled_1 > UINT16_MAX || sprite[src].height * scaled_1 > UINT16_MAX) return false;
00165
00166 sprite[tgt].width = sprite[src].width * scaled_1;
00167 sprite[tgt].height = sprite[src].height * scaled_1;
00168 sprite[tgt].x_offs = sprite[src].x_offs * scaled_1;
00169 sprite[tgt].y_offs = sprite[src].y_offs * scaled_1;
00170
00171 sprite[tgt].AllocateData(tgt, sprite[tgt].width * sprite[tgt].height);
00172
00173 SpriteLoader::CommonPixel *dst = sprite[tgt].data;
00174 for (int y = 0; y < sprite[tgt].height; y++) {
00175 const SpriteLoader::CommonPixel *src_ln = &sprite[src].data[y / scaled_1 * sprite[src].width];
00176 for (int x = 0; x < sprite[tgt].width; x++) {
00177 *dst = src_ln[x / scaled_1];
00178 dst++;
00179 }
00180 }
00181
00182 return true;
00183 }
00184
00185 static void ResizeSpriteOut(SpriteLoader::Sprite *sprite, ZoomLevel zoom)
00186 {
00187
00188 sprite[zoom].width = UnScaleByZoom(sprite[ZOOM_LVL_NORMAL].width, zoom);
00189 sprite[zoom].height = UnScaleByZoom(sprite[ZOOM_LVL_NORMAL].height, zoom);
00190 sprite[zoom].x_offs = UnScaleByZoom(sprite[ZOOM_LVL_NORMAL].x_offs, zoom);
00191 sprite[zoom].y_offs = UnScaleByZoom(sprite[ZOOM_LVL_NORMAL].y_offs, zoom);
00192
00193 sprite[zoom].AllocateData(zoom, sprite[zoom].height * sprite[zoom].width);
00194
00195 SpriteLoader::CommonPixel *dst = sprite[zoom].data;
00196 const SpriteLoader::CommonPixel *src = sprite[zoom - 1].data;
00197 const SpriteLoader::CommonPixel *src_end = src + sprite[zoom - 1].height * sprite[zoom - 1].width;
00198
00199 for (uint y = 0; y < sprite[zoom].height; y++) {
00200 const SpriteLoader::CommonPixel *src_ln = src + sprite[zoom - 1].width;
00201 assert(src_ln <= src_end);
00202 for (uint x = 0; x < sprite[zoom].width; x++) {
00203 assert(src < src_ln);
00204 if (src + 1 != src_ln && (src + 1)->a != 0) {
00205 *dst = *(src + 1);
00206 } else {
00207 *dst = *src;
00208 }
00209 dst++;
00210 src += 2;
00211 }
00212 src = src_ln + sprite[zoom - 1].width;
00213 }
00214 }
00215
00216 static bool PadSingleSprite(SpriteLoader::Sprite *sprite, ZoomLevel zoom, uint pad_left, uint pad_top, uint pad_right, uint pad_bottom)
00217 {
00218 uint width = sprite->width + pad_left + pad_right;
00219 uint height = sprite->height + pad_top + pad_bottom;
00220
00221 if (width > UINT16_MAX || height > UINT16_MAX) return false;
00222
00223
00224 SpriteLoader::CommonPixel *src_data = MallocT<SpriteLoader::CommonPixel>(sprite->width * sprite->height);
00225 MemCpyT(src_data, sprite->data, sprite->width * sprite->height);
00226 sprite->AllocateData(zoom, width * height);
00227
00228
00229 SpriteLoader::CommonPixel *src = src_data;
00230 SpriteLoader::CommonPixel *data = sprite->data;
00231 for (uint y = 0; y < height; y++) {
00232 if (y < pad_top || pad_bottom + y >= height) {
00233
00234 MemSetT(data, 0, width);
00235 data += width;
00236 } else {
00237 if (pad_left > 0) {
00238
00239 MemSetT(data, 0, pad_left);
00240 data += pad_left;
00241 }
00242
00243
00244 MemCpyT(data, src, sprite->width);
00245 src += sprite->width;
00246 data += sprite->width;
00247
00248 if (pad_right > 0) {
00249
00250 MemSetT(data, 0, pad_right);
00251 data += pad_right;
00252 }
00253 }
00254 }
00255 free(src_data);
00256
00257
00258 sprite->width = width;
00259 sprite->height = height;
00260 sprite->x_offs -= pad_left;
00261 sprite->y_offs -= pad_top;
00262
00263 return true;
00264 }
00265
00266 static bool PadSprites(SpriteLoader::Sprite *sprite, uint8 sprite_avail)
00267 {
00268
00269 int min_xoffs = INT32_MAX;
00270 int min_yoffs = INT32_MAX;
00271 for (ZoomLevel zoom = ZOOM_LVL_BEGIN; zoom != ZOOM_LVL_END; zoom++) {
00272 if (HasBit(sprite_avail, zoom)) {
00273 min_xoffs = min(min_xoffs, ScaleByZoom(sprite[zoom].x_offs, zoom));
00274 min_yoffs = min(min_yoffs, ScaleByZoom(sprite[zoom].y_offs, zoom));
00275 }
00276 }
00277
00278
00279 int max_width = INT32_MIN;
00280 int max_height = INT32_MIN;
00281 for (ZoomLevel zoom = ZOOM_LVL_BEGIN; zoom != ZOOM_LVL_END; zoom++) {
00282 if (HasBit(sprite_avail, zoom)) {
00283 max_width = max(max_width, ScaleByZoom(sprite[zoom].width + sprite[zoom].x_offs - UnScaleByZoom(min_xoffs, zoom), zoom));
00284 max_height = max(max_height, ScaleByZoom(sprite[zoom].height + sprite[zoom].y_offs - UnScaleByZoom(min_yoffs, zoom), zoom));
00285 }
00286 }
00287
00288
00289 for (ZoomLevel zoom = ZOOM_LVL_BEGIN; zoom != ZOOM_LVL_END; zoom++) {
00290 if (HasBit(sprite_avail, zoom)) {
00291
00292
00293 int pad_left = max(0, sprite[zoom].x_offs - UnScaleByZoom(min_xoffs, zoom));
00294 int pad_top = max(0, sprite[zoom].y_offs - UnScaleByZoom(min_yoffs, zoom));
00295 int pad_right = max(0, UnScaleByZoom(max_width, zoom) - sprite[zoom].width - pad_left);
00296 int pad_bottom = max(0, UnScaleByZoom(max_height, zoom) - sprite[zoom].height - pad_top);
00297
00298 if (pad_left > 0 || pad_right > 0 || pad_top > 0 || pad_bottom > 0) {
00299 if (!PadSingleSprite(&sprite[zoom], zoom, pad_left, pad_top, pad_right, pad_bottom)) return false;
00300 }
00301 }
00302 }
00303
00304 return true;
00305 }
00306
00307 static bool ResizeSprites(SpriteLoader::Sprite *sprite, uint8 sprite_avail, uint32 file_slot, uint32 file_pos)
00308 {
00309
00310 ZoomLevel first_avail = static_cast<ZoomLevel>(FIND_FIRST_BIT(sprite_avail));
00311 if (first_avail != ZOOM_LVL_NORMAL) {
00312 if (!ResizeSpriteIn(sprite, first_avail, ZOOM_LVL_NORMAL)) return false;
00313 SetBit(sprite_avail, ZOOM_LVL_NORMAL);
00314 }
00315
00316
00317 if (!PadSprites(sprite, sprite_avail)) return false;
00318
00319
00320 for (ZoomLevel zoom = ZOOM_LVL_OUT_2X; zoom != ZOOM_LVL_END; zoom++) {
00321 if (HasBit(sprite_avail, zoom)) {
00322
00323 assert(sprite[zoom].width == UnScaleByZoom(sprite[ZOOM_LVL_NORMAL].width, zoom));
00324 assert(sprite[zoom].height == UnScaleByZoom(sprite[ZOOM_LVL_NORMAL].height, zoom));
00325 assert(sprite[zoom].x_offs == UnScaleByZoom(sprite[ZOOM_LVL_NORMAL].x_offs, zoom));
00326 assert(sprite[zoom].y_offs == UnScaleByZoom(sprite[ZOOM_LVL_NORMAL].y_offs, zoom));
00327 }
00328
00329
00330 if (!HasBit(sprite_avail, zoom)) ResizeSpriteOut(sprite, zoom);
00331 }
00332
00333 return true;
00334 }
00335
00342 static void *ReadRecolourSprite(uint16 file_slot, uint num)
00343 {
00344
00345
00346
00347
00348 static const uint RECOLOUR_SPRITE_SIZE = 257;
00349 byte *dest = (byte *)AllocSprite(max(RECOLOUR_SPRITE_SIZE, num));
00350
00351 if (_palette_remap_grf[file_slot]) {
00352 byte *dest_tmp = AllocaM(byte, max(RECOLOUR_SPRITE_SIZE, num));
00353
00354
00355 if (num < RECOLOUR_SPRITE_SIZE) memset(dest_tmp, 0, RECOLOUR_SPRITE_SIZE);
00356 FioReadBlock(dest_tmp, num);
00357
00358
00359 for (uint i = 1; i < RECOLOUR_SPRITE_SIZE; i++) {
00360 dest[i] = _palmap_w2d[dest_tmp[_palmap_d2w[i - 1] + 1]];
00361 }
00362 } else {
00363 FioReadBlock(dest, num);
00364 }
00365
00366 return dest;
00367 }
00368
00377 static void *ReadSprite(const SpriteCache *sc, SpriteID id, SpriteType sprite_type, AllocatorProc *allocator)
00378 {
00379 uint8 file_slot = sc->file_slot;
00380 size_t file_pos = sc->file_pos;
00381
00382 assert(sprite_type != ST_RECOLOUR);
00383 assert(IsMapgenSpriteID(id) == (sprite_type == ST_MAPGEN));
00384 assert(sc->type == sprite_type);
00385
00386 DEBUG(sprite, 9, "Load sprite %d", id);
00387
00388 SpriteLoader::Sprite sprite[ZOOM_LVL_COUNT];
00389 uint8 sprite_avail = 0;
00390 sprite[ZOOM_LVL_NORMAL].type = sprite_type;
00391
00392 SpriteLoaderGrf sprite_loader(sc->container_ver);
00393 if (sprite_type != ST_MAPGEN && BlitterFactoryBase::GetCurrentBlitter()->GetScreenDepth() == 32) {
00394
00395 sprite_avail = sprite_loader.LoadSprite(sprite, file_slot, file_pos, sprite_type, true);
00396 }
00397 if (sprite_avail == 0) {
00398 sprite_avail = sprite_loader.LoadSprite(sprite, file_slot, file_pos, sprite_type, false);
00399 }
00400
00401 if (sprite_avail == 0) {
00402 if (sprite_type == ST_MAPGEN) return NULL;
00403 if (id == SPR_IMG_QUERY) usererror("Okay... something went horribly wrong. I couldn't load the fallback sprite. What should I do?");
00404 return (void*)GetRawSprite(SPR_IMG_QUERY, ST_NORMAL, allocator);
00405 }
00406
00407 if (sprite_type == ST_MAPGEN) {
00408
00409
00410
00411
00412
00413
00414
00415
00416
00417 uint num = sprite[ZOOM_LVL_NORMAL].width * sprite[ZOOM_LVL_NORMAL].height;
00418
00419 Sprite *s = (Sprite *)allocator(sizeof(*s) + num);
00420 s->width = sprite[ZOOM_LVL_NORMAL].width;
00421 s->height = sprite[ZOOM_LVL_NORMAL].height;
00422 s->x_offs = sprite[ZOOM_LVL_NORMAL].x_offs;
00423 s->y_offs = sprite[ZOOM_LVL_NORMAL].y_offs;
00424
00425 SpriteLoader::CommonPixel *src = sprite[ZOOM_LVL_NORMAL].data;
00426 byte *dest = s->data;
00427 while (num-- > 0) {
00428 *dest++ = src->m;
00429 src++;
00430 }
00431
00432 return s;
00433 }
00434
00435 if (sprite_type == ST_NORMAL) {
00436 if (!ResizeSprites(sprite, sprite_avail, file_slot, sc->id)) {
00437 if (id == SPR_IMG_QUERY) usererror("Okay... something went horribly wrong. I couldn't resize the fallback sprite. What should I do?");
00438 return (void*)GetRawSprite(SPR_IMG_QUERY, ST_NORMAL, allocator);
00439 }
00440 }
00441 return BlitterFactoryBase::GetCurrentBlitter()->Encode(sprite, allocator);
00442 }
00443
00444
00446 static std::map<uint32, size_t> _grf_sprite_offsets;
00447
00453 size_t GetGRFSpriteOffset(uint32 id)
00454 {
00455 return _grf_sprite_offsets.find(id) != _grf_sprite_offsets.end() ? _grf_sprite_offsets[id] : SIZE_MAX;
00456 }
00457
00462 void ReadGRFSpriteOffsets(byte container_version)
00463 {
00464 _grf_sprite_offsets.clear();
00465
00466 if (container_version >= 2) {
00467
00468 size_t data_offset = FioReadDword();
00469 size_t old_pos = FioGetPos();
00470 FioSeekTo(data_offset, SEEK_CUR);
00471
00472
00473
00474 uint32 id, prev_id = 0;
00475 while ((id = FioReadDword()) != 0) {
00476 if (id != prev_id) _grf_sprite_offsets[id] = FioGetPos() - 4;
00477 prev_id = id;
00478 FioSkipBytes(FioReadDword());
00479 }
00480
00481
00482 FioSeekTo(old_pos, SEEK_SET);
00483 }
00484 }
00485
00486
00495 bool LoadNextSprite(int load_index, byte file_slot, uint file_sprite_id, byte container_version)
00496 {
00497 size_t file_pos = FioGetPos();
00498
00499
00500 uint32 num = container_version >= 2 ? FioReadDword() : FioReadWord();
00501 if (num == 0) return false;
00502 byte grf_type = FioReadByte();
00503
00504 SpriteType type;
00505 void *data = NULL;
00506 if (grf_type == 0xFF) {
00507
00508
00509 if (num == 1) {
00510 FioReadByte();
00511 return false;
00512 }
00513 type = ST_RECOLOUR;
00514 data = ReadRecolourSprite(file_slot, num);
00515 } else if (container_version >= 2 && grf_type == 0xFD) {
00516 if (num != 4) {
00517
00518 FioSkipBytes(num);
00519 return false;
00520 }
00521
00522 file_pos = GetGRFSpriteOffset(FioReadDword());
00523 type = ST_NORMAL;
00524 } else {
00525 FioSkipBytes(7);
00526 type = SkipSpriteData(grf_type, num - 8) ? ST_NORMAL : ST_INVALID;
00527
00528 if (container_version >= 2) return false;
00529 }
00530
00531 if (type == ST_INVALID) return false;
00532
00533 if (load_index >= MAX_SPRITES) {
00534 usererror("Tried to load too many sprites (#%d; max %d)", load_index, MAX_SPRITES);
00535 }
00536
00537 bool is_mapgen = IsMapgenSpriteID(load_index);
00538
00539 if (is_mapgen) {
00540 if (type != ST_NORMAL) usererror("Uhm, would you be so kind not to load a NewGRF that changes the type of the map generator sprites?");
00541 type = ST_MAPGEN;
00542 }
00543
00544 SpriteCache *sc = AllocateSpriteCache(load_index);
00545 sc->file_slot = file_slot;
00546 sc->file_pos = file_pos;
00547 sc->ptr = data;
00548 sc->lru = 0;
00549 sc->id = file_sprite_id;
00550 sc->type = type;
00551 sc->warned = false;
00552 sc->container_ver = container_version;
00553
00554 return true;
00555 }
00556
00557
00558 void DupSprite(SpriteID old_spr, SpriteID new_spr)
00559 {
00560 SpriteCache *scnew = AllocateSpriteCache(new_spr);
00561 SpriteCache *scold = GetSpriteCache(old_spr);
00562
00563 scnew->file_slot = scold->file_slot;
00564 scnew->file_pos = scold->file_pos;
00565 scnew->ptr = NULL;
00566 scnew->id = scold->id;
00567 scnew->type = scold->type;
00568 scnew->warned = false;
00569 scnew->container_ver = scold->container_ver;
00570 }
00571
00578 static const size_t S_FREE_MASK = sizeof(size_t) - 1;
00579
00580
00581 assert_compile(sizeof(MemBlock) == sizeof(size_t));
00582
00583 assert_compile((sizeof(size_t) & (sizeof(size_t) - 1)) == 0);
00584
00585 static inline MemBlock *NextBlock(MemBlock *block)
00586 {
00587 return (MemBlock*)((byte*)block + (block->size & ~S_FREE_MASK));
00588 }
00589
00590 static size_t GetSpriteCacheUsage()
00591 {
00592 size_t tot_size = 0;
00593 MemBlock *s;
00594
00595 for (s = _spritecache_ptr; s->size != 0; s = NextBlock(s)) {
00596 if (!(s->size & S_FREE_MASK)) tot_size += s->size;
00597 }
00598
00599 return tot_size;
00600 }
00601
00602
00603 void IncreaseSpriteLRU()
00604 {
00605
00606 if (_sprite_lru_counter > 16384) {
00607 SpriteID i;
00608
00609 DEBUG(sprite, 3, "Fixing lru %u, inuse=" PRINTF_SIZE, _sprite_lru_counter, GetSpriteCacheUsage());
00610
00611 for (i = 0; i != _spritecache_items; i++) {
00612 SpriteCache *sc = GetSpriteCache(i);
00613 if (sc->ptr != NULL) {
00614 if (sc->lru >= 0) {
00615 sc->lru = -1;
00616 } else if (sc->lru != -32768) {
00617 sc->lru--;
00618 }
00619 }
00620 }
00621 _sprite_lru_counter = 0;
00622 }
00623
00624
00625 if (++_compact_cache_counter >= 740) {
00626 CompactSpriteCache();
00627 _compact_cache_counter = 0;
00628 }
00629 }
00630
00635 static void CompactSpriteCache()
00636 {
00637 MemBlock *s;
00638
00639 DEBUG(sprite, 3, "Compacting sprite cache, inuse=" PRINTF_SIZE, GetSpriteCacheUsage());
00640
00641 for (s = _spritecache_ptr; s->size != 0;) {
00642 if (s->size & S_FREE_MASK) {
00643 MemBlock *next = NextBlock(s);
00644 MemBlock temp;
00645 SpriteID i;
00646
00647
00648 assert(!(next->size & S_FREE_MASK));
00649
00650
00651 if (next->size == 0) break;
00652
00653
00654 for (i = 0; GetSpriteCache(i)->ptr != next->data; i++) {
00655 assert(i != _spritecache_items);
00656 }
00657
00658 GetSpriteCache(i)->ptr = s->data;
00659
00660 temp = *s;
00661 memmove(s, next, next->size);
00662 s = NextBlock(s);
00663 *s = temp;
00664
00665
00666 while (NextBlock(s)->size & S_FREE_MASK) {
00667 s->size += NextBlock(s)->size & ~S_FREE_MASK;
00668 }
00669 } else {
00670 s = NextBlock(s);
00671 }
00672 }
00673 }
00674
00679 static void DeleteEntryFromSpriteCache(uint item)
00680 {
00681
00682 MemBlock *s = (MemBlock*)GetSpriteCache(item)->ptr - 1;
00683 assert(!(s->size & S_FREE_MASK));
00684 s->size |= S_FREE_MASK;
00685 GetSpriteCache(item)->ptr = NULL;
00686
00687
00688 for (s = _spritecache_ptr; s->size != 0; s = NextBlock(s)) {
00689 if (s->size & S_FREE_MASK) {
00690 while (NextBlock(s)->size & S_FREE_MASK) {
00691 s->size += NextBlock(s)->size & ~S_FREE_MASK;
00692 }
00693 }
00694 }
00695 }
00696
00697 static void DeleteEntryFromSpriteCache()
00698 {
00699 uint best = UINT_MAX;
00700 int cur_lru;
00701
00702 DEBUG(sprite, 3, "DeleteEntryFromSpriteCache, inuse=" PRINTF_SIZE, GetSpriteCacheUsage());
00703
00704 cur_lru = 0xffff;
00705 for (SpriteID i = 0; i != _spritecache_items; i++) {
00706 SpriteCache *sc = GetSpriteCache(i);
00707 if (sc->type != ST_RECOLOUR && sc->ptr != NULL && sc->lru < cur_lru) {
00708 cur_lru = sc->lru;
00709 best = i;
00710 }
00711 }
00712
00713
00714
00715 if (best == UINT_MAX) error("Out of sprite memory");
00716
00717 DeleteEntryFromSpriteCache(best);
00718 }
00719
00720 static void *AllocSprite(size_t mem_req)
00721 {
00722 mem_req += sizeof(MemBlock);
00723
00724
00725
00726 mem_req = Align(mem_req, S_FREE_MASK + 1);
00727
00728 for (;;) {
00729 MemBlock *s;
00730
00731 for (s = _spritecache_ptr; s->size != 0; s = NextBlock(s)) {
00732 if (s->size & S_FREE_MASK) {
00733 size_t cur_size = s->size & ~S_FREE_MASK;
00734
00735
00736
00737 if (cur_size == mem_req ||
00738 cur_size >= mem_req + sizeof(MemBlock)) {
00739
00740 s->size = mem_req;
00741
00742
00743 if (cur_size != mem_req) {
00744 NextBlock(s)->size = (cur_size - mem_req) | S_FREE_MASK;
00745 }
00746
00747 return s->data;
00748 }
00749 }
00750 }
00751
00752
00753 DeleteEntryFromSpriteCache();
00754 }
00755 }
00756
00766 static void *HandleInvalidSpriteRequest(SpriteID sprite, SpriteType requested, SpriteCache *sc, AllocatorProc *allocator)
00767 {
00768 static const char * const sprite_types[] = {
00769 "normal",
00770 "map generator",
00771 "character",
00772 "recolour",
00773 };
00774
00775 SpriteType available = sc->type;
00776 if (requested == ST_FONT && available == ST_NORMAL) {
00777 if (sc->ptr == NULL) sc->type = ST_FONT;
00778 return GetRawSprite(sprite, sc->type, allocator);
00779 }
00780
00781 byte warning_level = sc->warned ? 6 : 0;
00782 sc->warned = true;
00783 DEBUG(sprite, warning_level, "Tried to load %s sprite #%d as a %s sprite. Probable cause: NewGRF interference", sprite_types[available], sprite, sprite_types[requested]);
00784
00785 switch (requested) {
00786 case ST_NORMAL:
00787 if (sprite == SPR_IMG_QUERY) usererror("Uhm, would you be so kind not to load a NewGRF that makes the 'query' sprite a non-normal sprite?");
00788
00789 case ST_FONT:
00790 return GetRawSprite(SPR_IMG_QUERY, ST_NORMAL, allocator);
00791 case ST_RECOLOUR:
00792 if (sprite == PALETTE_TO_DARK_BLUE) usererror("Uhm, would you be so kind not to load a NewGRF that makes the 'PALETTE_TO_DARK_BLUE' sprite a non-remap sprite?");
00793 return GetRawSprite(PALETTE_TO_DARK_BLUE, ST_RECOLOUR, allocator);
00794 case ST_MAPGEN:
00795
00796
00797 default:
00798 NOT_REACHED();
00799 }
00800 }
00801
00810 void *GetRawSprite(SpriteID sprite, SpriteType type, AllocatorProc *allocator)
00811 {
00812 assert(IsMapgenSpriteID(sprite) == (type == ST_MAPGEN));
00813 assert(type < ST_INVALID);
00814
00815 if (!SpriteExists(sprite)) {
00816 DEBUG(sprite, 1, "Tried to load non-existing sprite #%d. Probable cause: Wrong/missing NewGRFs", sprite);
00817
00818
00819 sprite = SPR_IMG_QUERY;
00820 }
00821
00822 SpriteCache *sc = GetSpriteCache(sprite);
00823
00824 if (sc->type != type) return HandleInvalidSpriteRequest(sprite, type, sc, allocator);
00825
00826 if (allocator == NULL) {
00827
00828
00829
00830 sc->lru = ++_sprite_lru_counter;
00831
00832
00833 if (sc->ptr == NULL) sc->ptr = ReadSprite(sc, sprite, type, AllocSprite);
00834
00835 return sc->ptr;
00836 } else {
00837
00838 return ReadSprite(sc, sprite, type, allocator);
00839 }
00840 }
00841
00842
00843 static void GfxInitSpriteCache()
00844 {
00845
00846 if (_spritecache_ptr == NULL) _spritecache_ptr = (MemBlock*)MallocT<byte>(_sprite_cache_size * 1024 * 1024);
00847
00848
00849 _spritecache_ptr->size = ((_sprite_cache_size * 1024 * 1024) - sizeof(MemBlock)) | S_FREE_MASK;
00850
00851 NextBlock(_spritecache_ptr)->size = 0;
00852 }
00853
00854 void GfxInitSpriteMem()
00855 {
00856 GfxInitSpriteCache();
00857
00858
00859 free(_spritecache);
00860 _spritecache_items = 0;
00861 _spritecache = NULL;
00862
00863 _compact_cache_counter = 0;
00864 }
00865
00870 void GfxClearSpriteCache()
00871 {
00872
00873 for (uint i = 0; i != _spritecache_items; i++) {
00874 SpriteCache *sc = GetSpriteCache(i);
00875 if (sc->type != ST_RECOLOUR && sc->ptr != NULL) DeleteEntryFromSpriteCache(i);
00876 }
00877 }
00878
00879 ReusableBuffer<SpriteLoader::CommonPixel> SpriteLoader::Sprite::buffer[ZOOM_LVL_COUNT];