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// Ported from https://github.com/kiwi515/ogws/blob/master/src/nw4r/ut/ut_RomFont.cpp --- Mostly unused
#include "nw4r/ut.h"
namespace nw4r {
namespace ut {
u16 RomFont::mFontEncode = 0xFFFF;
namespace {
bool IsCP1252Char(u16 c) {
return c >= 0x20 && c <= 0xFF;
}
bool IsSJISHalfWidthChar(u16 c) {
if (c > 0xFF) {
return false;
}
return (c >= 0x20 && c <= 0x7E) || (c >= 0xA1 && c <= 0xDF);
}
bool IsSJISFullWidthChar(u16 c) {
u8 hi = BitExtract<u16>(c, 8, 8);
u8 lo = BitExtract<u16>(c, 0, 8);
return hi >= 0x81 && hi <= 0x98 && lo >= 0x40 && lo <= 0xFC;
}
} // namespace
RomFont::RomFont() : mFontHeader(NULL), mAlternateChar('?') {
mDefaultWidths.leftSpacing = 0;
mDefaultWidths.glyphWidth = 0;
mDefaultWidths.charWidth = 0;
}
RomFont::~RomFont() {}
bool RomFont::Load(void *buffer) {
if (mFontHeader != NULL) {
return false;
}
BOOL success = OSInitFont(static_cast<OSFontHeader *>(buffer));
if (success) {
mFontEncode = OSGetFontEncode();
mFontHeader = static_cast<OSFontHeader *>(buffer);
mDefaultWidths.leftSpacing = 0;
mDefaultWidths.glyphWidth = GetCellWidth();
mDefaultWidths.charWidth = GetMaxCharWidth();
InitReaderFunc(GetEncoding());
}
return success;
}
u32 RomFont::GetRequireBufferSize() {
switch (OSGetFontEncode()) {
case OS_FONT_ENCODE_ANSI: return 0x00020120;
case OS_FONT_ENCODE_SJIS: return 0x00120F00;
}
return 0;
}
int RomFont::GetWidth() const {
return mFontHeader->width;
}
int RomFont::GetHeight() const {
return GetAscent() + GetDescent();
}
int RomFont::GetAscent() const {
return mFontHeader->ascent;
}
int RomFont::GetDescent() const {
return mFontHeader->descent;
}
int RomFont::GetBaselinePos() const {
return mFontHeader->ascent;
}
int RomFont::GetCellHeight() const {
return mFontHeader->cellHeight;
}
int RomFont::GetCellWidth() const {
return mFontHeader->cellWidth;
}
int RomFont::GetMaxCharWidth() const {
return mFontHeader->width;
}
Font::Type RomFont::GetType() const {
return TYPE_ROM;
}
GXTexFmt RomFont::GetTextureFormat() const {
return GX_TF_I4;
}
int RomFont::GetLineFeed() const {
return mFontHeader->leading;
}
CharWidths RomFont::GetDefaultCharWidths() const {
return mDefaultWidths;
}
void RomFont::SetDefaultCharWidths(const CharWidths &widths) {
mDefaultWidths = widths;
}
bool RomFont::SetAlternateChar(u16 c) {
const u16 prev = mAlternateChar;
mAlternateChar = 0xFFFF;
u16 undef = HandleUndefinedChar(c);
if (undef != 0xFFFF) {
mAlternateChar = c;
return true;
} else {
mAlternateChar = prev;
return false;
}
}
void RomFont::SetLineFeed(int lf) {
mFontHeader->leading = lf;
}
int RomFont::GetCharWidth(u16 c) const {
u32 width;
char buffer[4];
MakeCharPtr(buffer, c);
OSGetFontWidth(buffer, &width);
return width;
}
CharWidths RomFont::GetCharWidths(u16 c) const {
int width = GetCharWidth(c);
CharWidths widths;
widths.leftSpacing = 0;
widths.glyphWidth = width;
widths.charWidth = width;
return widths;
}
void RomFont::GetGlyph(Glyph *out, u16 c) const {
void *texture;
u32 x, y, width;
char buffer[4];
MakeCharPtr(buffer, c);
OSGetFontTexture(buffer, &texture, &x, &y, &width);
out->texture = texture;
out->widths.leftSpacing = 0;
out->widths.glyphWidth = width;
out->widths.charWidth = width;
out->height = mFontHeader->cellHeight;
out->format = GX_TF_I4;
out->texWidth = mFontHeader->sheetWidth;
out->texHeight = mFontHeader->sheetHeight;
out->cellX = x;
out->cellY = y;
}
FontEncoding RomFont::GetEncoding() const {
switch (mFontEncode) {
case OS_FONT_ENCODE_ANSI: return FONT_ENCODE_CP1252;
case OS_FONT_ENCODE_SJIS: return FONT_ENCODE_SJIS;
}
return FONT_ENCODE_CP1252;
}
void RomFont::MakeCharPtr(char *buffer, u16 c) const {
c = HandleUndefinedChar(c);
if (BitExtract<u16>(c, 8, 8) == 0) {
buffer[0] = c & 0x00FF;
buffer[1] = '\0';
} else {
buffer[0] = BitExtract<u16>(c, 8, 8);
buffer[1] = c & 0x00FF;
buffer[2] = '\0';
}
}
u16 RomFont::HandleUndefinedChar(u16 c) const {
bool valid;
switch (mFontEncode) {
case OS_FONT_ENCODE_ANSI: valid = IsCP1252Char(c); break;
case OS_FONT_ENCODE_SJIS: valid = IsSJISHalfWidthChar(c) || IsSJISFullWidthChar(c); break;
}
return valid ? c : mAlternateChar;
}
} // namespace ut
} // namespace nw4r
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