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[macOS export] Fix RLE icon generation.

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bruvzg 2024-01-07 18:58:46 +02:00
parent c8c483cf57
commit bf65c6514f
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GPG Key ID: 7960FCF39844EC38
1 changed files with 36 additions and 49 deletions
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85
platform/macos/export/export_plugin.cpp
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@ -494,65 +494,49 @@ void _rgba8_to_packbits_encode(int p_ch, int p_size, Vector<uint8_t> &p_source,
int src_len = p_size * p_size;
Vector<uint8_t> result;
result.resize(src_len * 1.25); //temp vector for rle encoded data, make it 25% larger for worst case scenario
int res_size = 0;
uint8_t buf[128];
int buf_size = 0;
int i = 0;
const uint8_t *src = p_source.ptr();
while (i < src_len) {
uint8_t cur = p_source.ptr()[i * 4 + p_ch];
Vector<uint8_t> seq;
if (i < src_len - 2) {
if ((p_source.ptr()[(i + 1) * 4 + p_ch] == cur) && (p_source.ptr()[(i + 2) * 4 + p_ch] == cur)) {
if (buf_size > 0) {
result.write[res_size++] = (uint8_t)(buf_size - 1);
memcpy(&result.write[res_size], &buf, buf_size);
res_size += buf_size;
buf_size = 0;
}
uint8_t lim = i + 130 >= src_len ? src_len - i - 1 : 130;
bool hit_lim = true;
for (int j = 3; j <= lim; j++) {
if (p_source.ptr()[(i + j) * 4 + p_ch] != cur) {
hit_lim = false;
i = i + j - 1;
result.write[res_size++] = (uint8_t)(j - 3 + 0x80);
result.write[res_size++] = cur;
break;
}
}
if (hit_lim) {
result.write[res_size++] = (uint8_t)(lim - 3 + 0x80);
result.write[res_size++] = cur;
i = i + lim;
}
} else {
buf[buf_size++] = cur;
if (buf_size == 128) {
result.write[res_size++] = (uint8_t)(buf_size - 1);
memcpy(&result.write[res_size], &buf, buf_size);
res_size += buf_size;
buf_size = 0;
}
uint8_t count = 0;
while (count <= 0x7f && i < src_len) {
if (i + 2 < src_len && src[i * 4 + p_ch] == src[(i + 1) * 4 + p_ch] && src[i] == src[(i + 2) * 4 + p_ch]) {
break;
}
} else {
buf[buf_size++] = cur;
result.write[res_size++] = (uint8_t)(buf_size - 1);
memcpy(&result.write[res_size], &buf, buf_size);
res_size += buf_size;
buf_size = 0;
seq.push_back(src[i * 4 + p_ch]);
i++;
count++;
}
if (!seq.is_empty()) {
result.push_back(count - 1);
result.append_array(seq);
}
if (i >= src_len) {
break;
}
i++;
uint8_t rep = src[i * 4 + p_ch];
count = 0;
while (count <= 0x7f && i < src_len && src[i * 4 + p_ch] == rep) {
i++;
count++;
}
if (count >= 3) {
result.push_back(0x80 + count - 3);
result.push_back(rep);
} else {
result.push_back(count - 1);
for (int j = 0; j < count; j++) {
result.push_back(rep);
}
}
}
int ofs = p_dest.size();
p_dest.resize(p_dest.size() + res_size);
memcpy(&p_dest.write[ofs], result.ptr(), res_size);
p_dest.resize(p_dest.size() + result.size());
memcpy(&p_dest.write[ofs], result.ptr(), result.size());
}
void EditorExportPlatformMacOS::_make_icon(const Ref<EditorExportPreset> &p_preset, const Ref<Image> &p_icon, Vector<uint8_t> &p_data) {
@ -615,6 +599,9 @@ void EditorExportPlatformMacOS::_make_icon(const Ref<EditorExportPreset> &p_pres
_rgba8_to_packbits_encode(1, icon_infos[i].size, src_data, data); // Encode G.
_rgba8_to_packbits_encode(2, icon_infos[i].size, src_data, data); // Encode B.
// Note: workaround for macOS icon decoder bug corrupting last RLE encoded value.
data.push_back(0x00);
int len = data.size() - ofs;
len = BSWAP32(len);
memcpy(&data.write[ofs], icon_infos[i].name, 4);