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Codechange: Use vector instead of mallloc/free for Action 6 data. (#10713)

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PeterN 2023-04-26 06:45:11 +01:00 committed by GitHub
parent 1697dff744
commit 7535eb65e2
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 19 additions and 26 deletions
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45
src/newgrf.cpp
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@ -378,7 +378,7 @@ struct GRFLocation {
};
static std::map<GRFLocation, SpriteID> _grm_sprites;
typedef std::map<GRFLocation, byte*> GRFLineToSpriteOverride;
typedef std::map<GRFLocation, std::vector<byte>> GRFLineToSpriteOverride;
static GRFLineToSpriteOverride _grf_line_to_action6_sprite_override;
/**
@ -6690,34 +6690,30 @@ static void CfgApply(ByteReader *buf)
size_t pos = file.GetPos();
uint32 num = file.GetContainerVersion() >= 2 ? file.ReadDword() : file.ReadWord();
uint8 type = file.ReadByte();
byte *preload_sprite = nullptr;
/* Check if the sprite is a pseudo sprite. We can't operate on real sprites. */
if (type == 0xFF) {
preload_sprite = MallocT<byte>(num);
file.ReadBlock(preload_sprite, num);
if (type != 0xFF) {
GrfMsg(2, "CfgApply: Ignoring (next sprite is real, unsupported)");
/* Reset the file position to the start of the next sprite */
file.SeekTo(pos, SEEK_SET);
return;
}
/* Get (or create) the override for the next sprite. */
GRFLocation location(_cur.grfconfig->ident.grfid, _cur.nfo_line + 1);
std::vector<byte> &preload_sprite = _grf_line_to_action6_sprite_override[location];
/* Load new sprite data if it hasn't already been loaded. */
if (preload_sprite.empty()) {
preload_sprite.resize(num);
file.ReadBlock(preload_sprite.data(), num);
}
/* Reset the file position to the start of the next sprite */
file.SeekTo(pos, SEEK_SET);
if (type != 0xFF) {
GrfMsg(2, "CfgApply: Ignoring (next sprite is real, unsupported)");
free(preload_sprite);
return;
}
GRFLocation location(_cur.grfconfig->ident.grfid, _cur.nfo_line + 1);
GRFLineToSpriteOverride::iterator it = _grf_line_to_action6_sprite_override.find(location);
if (it != _grf_line_to_action6_sprite_override.end()) {
free(preload_sprite);
preload_sprite = _grf_line_to_action6_sprite_override[location];
} else {
_grf_line_to_action6_sprite_override[location] = preload_sprite;
}
/* Now perform the Action 0x06 on our data. */
for (;;) {
uint i;
uint param_num;
@ -9484,7 +9480,7 @@ static void DecodeSpecialSprite(byte *buf, uint num, GrfLoadingStage stage)
_cur.file->ReadBlock(buf, num);
} else {
/* Use the preloaded sprite data. */
buf = _grf_line_to_action6_sprite_override[location];
buf = _grf_line_to_action6_sprite_override[location].data();
GrfMsg(7, "DecodeSpecialSprite: Using preloaded pseudo sprite data");
/* Skip the real (original) content of this action. */
@ -9820,10 +9816,7 @@ static void AfterLoadGRFs()
}
_string_to_grf_mapping.clear();
/* Free the action 6 override sprites. */
for (GRFLineToSpriteOverride::iterator it = _grf_line_to_action6_sprite_override.begin(); it != _grf_line_to_action6_sprite_override.end(); it++) {
free((*it).second);
}
/* Clear the action 6 override sprites. */
_grf_line_to_action6_sprite_override.clear();
/* Polish cargoes */