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Change: Let sprite loader know what sprites are available in both 8bpp and 32bpp depths.

pull/13349/head
Peter Nelson 2025-01-15 17:36:30 +00:00 committed by Peter Nelson
parent 60d0d7b8b2
commit 83e9ee00f0
4 changed files with 18 additions and 10 deletions
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6
src/spritecache.cpp
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@ -477,15 +477,17 @@ static void *ReadSprite(const SpriteCache *sc, SpriteID id, SpriteType sprite_ty
SpriteLoader::SpriteCollection sprite;
uint8_t sprite_avail = 0;
uint8_t avail_8bpp = 0;
uint8_t avail_32bpp = 0;
sprite[ZOOM_LVL_MIN].type = sprite_type;
SpriteLoaderGrf sprite_loader(file.GetContainerVersion());
if (sprite_type != SpriteType::MapGen && encoder->Is32BppSupported()) {
/* Try for 32bpp sprites first. */
sprite_avail = sprite_loader.LoadSprite(sprite, file, file_pos, sprite_type, true, sc->control_flags);
sprite_avail = sprite_loader.LoadSprite(sprite, file, file_pos, sprite_type, true, sc->control_flags, avail_8bpp, avail_32bpp);
}
if (sprite_avail == 0) {
sprite_avail = sprite_loader.LoadSprite(sprite, file, file_pos, sprite_type, false, sc->control_flags);
sprite_avail = sprite_loader.LoadSprite(sprite, file, file_pos, sprite_type, false, sc->control_flags, avail_8bpp, avail_32bpp);
}
if (sprite_avail == 0) {

18
src/spriteloader/grf.cpp
View File

@ -215,7 +215,7 @@ bool DecodeSingleSprite(SpriteLoader::Sprite *sprite, SpriteFile &file, size_t f
return true;
}
uint8_t LoadSpriteV1(SpriteLoader::SpriteCollection &sprite, SpriteFile &file, size_t file_pos, SpriteType sprite_type, bool load_32bpp)
uint8_t LoadSpriteV1(SpriteLoader::SpriteCollection &sprite, SpriteFile &file, size_t file_pos, SpriteType sprite_type, bool load_32bpp, uint8_t &avail_8bpp)
{
/* Check the requested colour depth. */
if (load_32bpp) return 0;
@ -247,12 +247,15 @@ uint8_t LoadSpriteV1(SpriteLoader::SpriteCollection &sprite, SpriteFile &file, s
* In case it is uncompressed, the size is 'num' - 8 (header-size). */
num = (type & 0x02) ? sprite[zoom_lvl].width * sprite[zoom_lvl].height : num - 8;
if (DecodeSingleSprite(&sprite[zoom_lvl], file, file_pos, sprite_type, num, type, zoom_lvl, SCC_PAL, 1)) return 1 << zoom_lvl;
if (DecodeSingleSprite(&sprite[zoom_lvl], file, file_pos, sprite_type, num, type, zoom_lvl, SCC_PAL, 1)) {
SetBit(avail_8bpp, zoom_lvl);
return avail_8bpp;
}
return 0;
}
uint8_t LoadSpriteV2(SpriteLoader::SpriteCollection &sprite, SpriteFile &file, size_t file_pos, SpriteType sprite_type, bool load_32bpp, uint8_t control_flags)
uint8_t LoadSpriteV2(SpriteLoader::SpriteCollection &sprite, SpriteFile &file, size_t file_pos, SpriteType sprite_type, bool load_32bpp, uint8_t control_flags, uint8_t &avail_8bpp, uint8_t &avail_32bpp)
{
static const ZoomLevel zoom_lvl_map[6] = {ZOOM_LVL_NORMAL, ZOOM_LVL_IN_4X, ZOOM_LVL_IN_2X, ZOOM_LVL_OUT_2X, ZOOM_LVL_OUT_4X, ZOOM_LVL_OUT_8X};
@ -281,6 +284,9 @@ uint8_t LoadSpriteV2(SpriteLoader::SpriteCollection &sprite, SpriteFile &file, s
if (sprite_type != SpriteType::MapGen) {
if (zoom < lengthof(zoom_lvl_map)) {
if (colour == SCC_PAL) SetBit(avail_8bpp, zoom_lvl_map[zoom]);
if (colour != SCC_PAL) SetBit(avail_32bpp, zoom_lvl_map[zoom]);
is_wanted_zoom_lvl = true;
ZoomLevel zoom_min = sprite_type == SpriteType::Font ? ZOOM_LVL_MIN : _settings_client.gui.sprite_zoom_min;
if (zoom_min >= ZOOM_LVL_IN_2X &&
@ -350,11 +356,11 @@ uint8_t LoadSpriteV2(SpriteLoader::SpriteCollection &sprite, SpriteFile &file, s
return loaded_sprites;
}
uint8_t SpriteLoaderGrf::LoadSprite(SpriteLoader::SpriteCollection &sprite, SpriteFile &file, size_t file_pos, SpriteType sprite_type, bool load_32bpp, uint8_t control_flags)
uint8_t SpriteLoaderGrf::LoadSprite(SpriteLoader::SpriteCollection &sprite, SpriteFile &file, size_t file_pos, SpriteType sprite_type, bool load_32bpp, uint8_t control_flags, uint8_t &avail_8bpp, uint8_t &avail_32bpp)
{
if (this->container_ver >= 2) {
return LoadSpriteV2(sprite, file, file_pos, sprite_type, load_32bpp, control_flags);
return LoadSpriteV2(sprite, file, file_pos, sprite_type, load_32bpp, control_flags, avail_8bpp, avail_32bpp);
} else {
return LoadSpriteV1(sprite, file, file_pos, sprite_type, load_32bpp);
return LoadSpriteV1(sprite, file, file_pos, sprite_type, load_32bpp, avail_8bpp);
}
}

2
src/spriteloader/grf.hpp
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@ -17,7 +17,7 @@ class SpriteLoaderGrf : public SpriteLoader {
uint8_t container_ver;
public:
SpriteLoaderGrf(uint8_t container_ver) : container_ver(container_ver) {}
uint8_t LoadSprite(SpriteLoader::SpriteCollection &sprite, SpriteFile &file, size_t file_pos, SpriteType sprite_type, bool load_32bpp, uint8_t control_flags) override;
uint8_t LoadSprite(SpriteLoader::SpriteCollection &sprite, SpriteFile &file, size_t file_pos, SpriteType sprite_type, bool load_32bpp, uint8_t control_flags, uint8_t &avail_8bpp, uint8_t &avail_32bpp) override;
};
#endif /* SPRITELOADER_GRF_HPP */

2
src/spriteloader/spriteloader.hpp
View File

@ -79,7 +79,7 @@ public:
* @param control_flags Control flags, see SpriteCacheCtrlFlags.
* @return Bit mask of the zoom levels successfully loaded or 0 if no sprite could be loaded.
*/
virtual uint8_t LoadSprite(SpriteLoader::SpriteCollection &sprite, SpriteFile &file, size_t file_pos, SpriteType sprite_type, bool load_32bpp, uint8_t control_flags) = 0;
virtual uint8_t LoadSprite(SpriteLoader::SpriteCollection &sprite, SpriteFile &file, size_t file_pos, SpriteType sprite_type, bool load_32bpp, uint8_t control_flags, uint8_t &avail_8bpp, uint8_t &avail_32bpp) = 0;
virtual ~SpriteLoader() = default;
};