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Codechange: Use EnumBitSet for SpriteComponent. (#13509)

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This commit is contained in:
Peter Nelson
2025-02-09 18:37:01 +00:00
committed by GitHub
parent b2f5a4901b
commit ba20ea5d18
8 changed files with 49 additions and 46 deletions
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src/spriteloader/grf.cpp
+26 -26
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@@ -57,7 +57,7 @@ static bool WarnCorruptSprite(const SpriteFile &file, size_t file_pos, int line)
* @param container_format Container format of the GRF this sprite is in.
* @return True if the sprite was successfully loaded.
*/
bool DecodeSingleSprite(SpriteLoader::Sprite *sprite, SpriteFile &file, size_t file_pos, SpriteType sprite_type, int64_t num, uint8_t type, ZoomLevel zoom_lvl, uint8_t colour_fmt, uint8_t container_format)
bool DecodeSingleSprite(SpriteLoader::Sprite *sprite, SpriteFile &file, size_t file_pos, SpriteType sprite_type, int64_t num, uint8_t type, ZoomLevel zoom_lvl, SpriteComponents colour_fmt, uint8_t container_format)
{
/*
* Original sprite height was max 255 pixels, with 4x extra zoom => 1020 pixels.
@@ -105,9 +105,9 @@ bool DecodeSingleSprite(SpriteLoader::Sprite *sprite, SpriteFile &file, size_t f
/* Convert colour depth to pixel size. */
int bpp = 0;
if (colour_fmt & SCC_RGB) bpp += 3; // Has RGB data.
if (colour_fmt & SCC_ALPHA) bpp++; // Has alpha data.
if (colour_fmt & SCC_PAL) bpp++; // Has palette data.
if (colour_fmt.Test(SpriteComponent::RGB)) bpp += 3; // Has RGB data.
if (colour_fmt.Test(SpriteComponent::Alpha)) bpp++; // Has alpha data.
if (colour_fmt.Test(SpriteComponent::Palette)) bpp++; // Has palette data.
/* When there are transparency pixels, this format has another trick.. decode it */
if (type & 0x08) {
@@ -156,20 +156,20 @@ bool DecodeSingleSprite(SpriteLoader::Sprite *sprite, SpriteFile &file, size_t f
}
for (int x = 0; x < length; x++) {
if (colour_fmt & SCC_RGB) {
if (colour_fmt.Test(SpriteComponent::RGB)) {
data->r = *dest++;
data->g = *dest++;
data->b = *dest++;
}
data->a = (colour_fmt & SCC_ALPHA) ? *dest++ : 0xFF;
if (colour_fmt & SCC_PAL) {
data->a = colour_fmt.Test(SpriteComponent::Alpha) ? *dest++ : 0xFF;
if (colour_fmt.Test(SpriteComponent::Palette)) {
switch (sprite_type) {
case SpriteType::Normal: data->m = file.NeedsPaletteRemap() ? _palmap_w2d[*dest] : *dest; break;
case SpriteType::Font: data->m = std::min<uint8_t>(*dest, 2u); break;
default: data->m = *dest; break;
}
/* Magic blue. */
if (colour_fmt == SCC_PAL && *dest == 0) data->a = 0x00;
if (colour_fmt == SpriteComponent::Palette && *dest == 0) data->a = 0x00;
dest++;
}
data++;
@@ -193,20 +193,20 @@ bool DecodeSingleSprite(SpriteLoader::Sprite *sprite, SpriteFile &file, size_t f
for (int i = 0; i < sprite->width * sprite->height; i++) {
uint8_t *pixel = &dest[i * bpp];
if (colour_fmt & SCC_RGB) {
if (colour_fmt.Test(SpriteComponent::RGB)) {
sprite->data[i].r = *pixel++;
sprite->data[i].g = *pixel++;
sprite->data[i].b = *pixel++;
}
sprite->data[i].a = (colour_fmt & SCC_ALPHA) ? *pixel++ : 0xFF;
if (colour_fmt & SCC_PAL) {
sprite->data[i].a = colour_fmt.Test(SpriteComponent::Alpha) ? *pixel++ : 0xFF;
if (colour_fmt.Test(SpriteComponent::Palette)) {
switch (sprite_type) {
case SpriteType::Normal: sprite->data[i].m = file.NeedsPaletteRemap() ? _palmap_w2d[*pixel] : *pixel; break;
case SpriteType::Font: sprite->data[i].m = std::min<uint8_t>(*pixel, 2u); break;
default: sprite->data[i].m = *pixel; break;
}
/* Magic blue. */
if (colour_fmt == SCC_PAL && *pixel == 0) sprite->data[i].a = 0x00;
if (colour_fmt == SpriteComponent::Palette && *pixel == 0) sprite->data[i].a = 0x00;
pixel++;
}
}
@@ -236,7 +236,7 @@ uint8_t LoadSpriteV1(SpriteLoader::SpriteCollection &sprite, SpriteFile &file, s
sprite[zoom_lvl].width = file.ReadWord();
sprite[zoom_lvl].x_offs = file.ReadWord();
sprite[zoom_lvl].y_offs = file.ReadWord();
sprite[zoom_lvl].colours = SCC_PAL;
sprite[zoom_lvl].colours = SpriteComponent::Palette;
if (sprite[zoom_lvl].width > INT16_MAX) {
WarnCorruptSprite(file, file_pos, __LINE__);
@@ -247,7 +247,7 @@ 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)) {
if (DecodeSingleSprite(&sprite[zoom_lvl], file, file_pos, sprite_type, num, type, zoom_lvl, SpriteComponent::Palette, 1)) {
SetBit(avail_8bpp, zoom_lvl);
return avail_8bpp;
}
@@ -276,16 +276,19 @@ uint8_t LoadSpriteV2(SpriteLoader::SpriteCollection &sprite, SpriteFile &file, s
/* Type 0xFF indicates either a colourmap or some other non-sprite info; we do not handle them here. */
if (type == 0xFF) return 0;
uint8_t colour = type & SCC_MASK;
SpriteComponents colour{type};
/* Mask out colour component information from type. */
type &= ~SpriteComponents::MASK;
uint8_t zoom = file.ReadByte();
bool is_wanted_colour_depth = (colour != 0 && (load_32bpp ? colour != SCC_PAL : colour == SCC_PAL));
bool is_wanted_colour_depth = (colour != SpriteComponents{} && (load_32bpp ? colour != SpriteComponent::Palette : colour == SpriteComponent::Palette));
bool is_wanted_zoom_lvl;
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]);
if (colour == SpriteComponent::Palette) SetBit(avail_8bpp, zoom_lvl_map[zoom]);
if (colour != SpriteComponent::Palette) 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;
@@ -324,16 +327,13 @@ uint8_t LoadSpriteV2(SpriteLoader::SpriteCollection &sprite, SpriteFile &file, s
return 0;
}
/* Mask out colour information. */
type = type & ~SCC_MASK;
/* Convert colour depth to pixel size. */
/* Convert colour components to pixel size. */
int bpp = 0;
if (colour & SCC_RGB) bpp += 3; // Has RGB data.
if (colour & SCC_ALPHA) bpp++; // Has alpha data.
if (colour & SCC_PAL) bpp++; // Has palette data.
if (colour.Test(SpriteComponent::RGB)) bpp += 3;
if (colour.Test(SpriteComponent::Alpha)) bpp++;
if (colour.Test(SpriteComponent::Palette)) bpp++;
sprite[zoom_lvl].colours = (SpriteColourComponent)colour;
sprite[zoom_lvl].colours = colour;
/* For chunked encoding we store the decompressed size in the file,
* otherwise we can calculate it from the image dimensions. */