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// Ported From https://github.com/kiwi515/ogws/blob/master/src/nw4r/ut/ut_ResFont.cpp
#include "nw4r/ut.h"
const u32 MAGIC_RESFONT = 'RFNT';
const u32 MAGIC_UNPACKED = 'RFNU';
const u32 MAGIC_FONTINFO = 'FINF';
const u32 MAGIC_TEXGLYPH = 'TGLP';
const u32 MAGIC_CHARWIDTH = 'CWDH';
const u32 MAGIC_CHARMAP = 'CMAP';
const u32 MAGIC_GLGR = 'GLGR';
namespace nw4r {
namespace ut {
namespace {
template <typename T>
void ResolveOffset(T *&ptr, void *base) {
ptr = reinterpret_cast<T *>(static_cast<char *>(base) + reinterpret_cast<ptrdiff_t>(ptr));
}
} // namespace
ResFont::ResFont() {}
ResFont::~ResFont() {}
bool ResFont::SetResource(void *buffer) {
BinaryFileHeader *header = static_cast<BinaryFileHeader *>(buffer);
FontInformation *info = NULL;
if (!IsManaging(NULL)) {
return false;
}
if (header->signature == MAGIC_UNPACKED) {
BinaryBlockHeader *block =
reinterpret_cast<BinaryBlockHeader *>(reinterpret_cast<char *>(header) + header->headerSize);
for (int i = 0; i < header->numBlocks; i++) {
if (block->magic == MAGIC_FONTINFO) {
info = reinterpret_cast<FontInformation *>(block + 1);
break;
}
block = reinterpret_cast<BinaryBlockHeader *>(reinterpret_cast<char *>(block) + block->length);
}
} else {
if (header->version == NW4R_VERSION(1, 04)) {
if (!IsValidBinaryFile(header, MAGIC_RESFONT, NW4R_VERSION(1, 04), 2)) {
return false;
}
} else if (!IsValidBinaryFile(header, MAGIC_RESFONT, NW4R_VERSION(1, 02), 2)) {
return false;
}
info = Rebuild(header);
}
if (info == NULL) {
return false;
}
SetResourceBuffer(header, info);
InitReaderFunc(GetEncoding());
return true;
}
void *ResFont::RemoveResource() {
return ResFontBase::RemoveResourceBuffer();
}
FontInformation *ResFont::Rebuild(BinaryFileHeader *header) {
BinaryBlockHeader *block =
reinterpret_cast<BinaryBlockHeader *>(reinterpret_cast<char *>(header) + header->headerSize);
FontInformation *info = NULL;
for (int i = 0; i < header->numBlocks; i++) {
switch (block->magic) {
case MAGIC_FONTINFO:
info = reinterpret_cast<FontInformation *>(block + 1);
ResolveOffset<FontTextureGlyph>(info->fontGlyph, header);
if (info->fontWidth != 0) {
ResolveOffset<FontWidth>(info->fontWidth, header);
}
if (info->fontMap != 0) {
ResolveOffset<FontCodeMap>(info->fontMap, header);
}
break;
case MAGIC_TEXGLYPH:
ResolveOffset<u8>(reinterpret_cast<FontTextureGlyph *>(block + 1)->sheetImage, header);
break;
case MAGIC_CHARWIDTH: {
FontWidth *width = reinterpret_cast<FontWidth *>(block + 1);
if (width->next != 0) {
ResolveOffset<FontWidth>(width->next, header);
}
break;
}
case MAGIC_CHARMAP: {
FontCodeMap *map = reinterpret_cast<FontCodeMap *>(block + 1);
if (map->next != 0) {
ResolveOffset<FontCodeMap>(map->next, header);
}
break;
}
case MAGIC_GLGR: break;
default: return NULL;
}
block = reinterpret_cast<BinaryBlockHeader *>(reinterpret_cast<char *>(block) + block->length);
}
header->signature = MAGIC_UNPACKED;
return info;
}
} // namespace ut
} // namespace nw4r
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