diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/spriteloader/grf.cpp | 19 |
1 files changed, 15 insertions, 4 deletions
diff --git a/src/spriteloader/grf.cpp b/src/spriteloader/grf.cpp index df0ce3702..8566e5b55 100644 --- a/src/spriteloader/grf.cpp +++ b/src/spriteloader/grf.cpp @@ -18,6 +18,7 @@ #include "../error.h" #include "../core/math_func.hpp" #include "../core/alloc_type.hpp" +#include "../core/bitmath_func.hpp" #include "grf.hpp" extern const byte _palmap_w2d[]; @@ -200,6 +201,8 @@ uint8 LoadSpriteV1(SpriteLoader::Sprite *sprite, uint8 file_slot, size_t file_po uint8 LoadSpriteV2(SpriteLoader::Sprite *sprite, uint8 file_slot, size_t file_pos, SpriteType sprite_type) { + static const ZoomLevel zoom_lvl_map[6] = {ZOOM_LVL_OUT_4X, ZOOM_LVL_NORMAL, ZOOM_LVL_OUT_2X, ZOOM_LVL_OUT_8X, ZOOM_LVL_OUT_16X, ZOOM_LVL_OUT_32X}; + /* Is the sprite not present/stripped in the GRF? */ if (file_pos == SIZE_MAX) return 0; @@ -208,6 +211,7 @@ uint8 LoadSpriteV2(SpriteLoader::Sprite *sprite, uint8 file_slot, size_t file_po uint32 id = FioReadDword(); + uint8 loaded_sprites = 0; do { int64 num = FioReadDword(); size_t start_pos = FioGetPos(); @@ -219,8 +223,15 @@ uint8 LoadSpriteV2(SpriteLoader::Sprite *sprite, uint8 file_slot, size_t file_po byte colour = type & SCC_MASK; byte zoom = FioReadByte(); - if (colour == SCC_PAL && zoom == 0) { - ZoomLevel zoom_lvl = (sprite_type == ST_NORMAL) ? ZOOM_LVL_OUT_4X : ZOOM_LVL_NORMAL; + if (colour == SCC_PAL && (sprite_type == ST_NORMAL ? zoom < lengthof(zoom_lvl_map) : zoom == 0)) { + ZoomLevel zoom_lvl = (sprite_type == ST_NORMAL) ? zoom_lvl_map[zoom] : ZOOM_LVL_NORMAL; + + if (HasBit(loaded_sprites, zoom_lvl)) { + /* We already have this zoom level, skip sprite. */ + DEBUG(sprite, 1, "Ignoring duplicate zoom level sprite %u from %s", id, FioGetFilename(file_slot)); + FioSkipBytes(num - 2); + continue; + } sprite[zoom_lvl].height = FioReadWord(); sprite[zoom_lvl].width = FioReadWord(); @@ -240,7 +251,7 @@ uint8 LoadSpriteV2(SpriteLoader::Sprite *sprite, uint8 file_slot, size_t file_po return 0; } - return 1 << zoom_lvl; + if (valid) SetBit(loaded_sprites, zoom_lvl); } else { /* Not the wanted zoom level or colour depth, continue searching. */ FioSkipBytes(num - 2); @@ -248,7 +259,7 @@ uint8 LoadSpriteV2(SpriteLoader::Sprite *sprite, uint8 file_slot, size_t file_po } while (FioReadDword() == id); - return 0; + return loaded_sprites; } uint8 SpriteLoaderGrf::LoadSprite(SpriteLoader::Sprite *sprite, uint8 file_slot, size_t file_pos, SpriteType sprite_type) |