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// Ported From https://github.com/kiwi515/ogws/blob/master/src/nw4r/ut/ut_ResFontBase.cpp
#include "nw4r/ut.h"
namespace nw4r {
namespace ut {
namespace detail {
ResFontBase::ResFontBase() : mResource(NULL), mFontInfo(NULL), mLastCharCode(0), mLastGlyphIndex(-1) {}
ResFontBase::~ResFontBase() {}
void ResFontBase::SetResourceBuffer(void *buffer, FontInformation *info) {
mResource = buffer;
mFontInfo = info;
}
void *ResFontBase::RemoveResourceBuffer() {
void *pUserData = mResource;
mFontInfo = NULL;
mResource = NULL;
return pUserData;
}
int ResFontBase::GetWidth() const {
return mFontInfo->width;
}
int ResFontBase::GetHeight() const {
return mFontInfo->height;
}
int ResFontBase::GetAscent() const {
return mFontInfo->ascent;
}
int ResFontBase::GetDescent() const {
return mFontInfo->height - mFontInfo->ascent;
}
int ResFontBase::GetBaselinePos() const {
return mFontInfo->fontGlyph->baselinePos;
}
int ResFontBase::GetCellHeight() const {
return mFontInfo->fontGlyph->cellHeight;
}
int ResFontBase::GetCellWidth() const {
return mFontInfo->fontGlyph->cellWidth;
}
int ResFontBase::GetMaxCharWidth() const {
return mFontInfo->fontGlyph->maxCharWidth;
}
Font::Type ResFontBase::GetType() const {
return TYPE_RESOURCE;
}
GXTexFmt ResFontBase::GetTextureFormat() const {
return static_cast<GXTexFmt>(mFontInfo->fontGlyph->sheetFormat);
}
int ResFontBase::GetLineFeed() const {
return mFontInfo->lineFeed;
}
CharWidths ResFontBase::GetDefaultCharWidths() const {
return mFontInfo->defaultWidth;
}
void ResFontBase::SetDefaultCharWidths(const CharWidths &widths) {
mFontInfo->defaultWidth = widths;
}
bool ResFontBase::SetAlternateChar(u16 ch) {
u32 index = FindGlyphIndex(ch);
if (index != 0xFFFF) {
mFontInfo->alterCharIndex = index;
return true;
}
return false;
}
void ResFontBase::SetLineFeed(int lf) {
mFontInfo->lineFeed = lf;
}
int ResFontBase::GetCharWidth(u16 ch) const {
return GetCharWidths(ch).charWidth;
}
CharWidths ResFontBase::GetCharWidths(u16 ch) const {
u16 index = GetGlyphIndex(ch);
return GetCharWidthsFromIndex(index);
}
void ResFontBase::GetGlyph(Glyph *out, u16 ch) const {
u16 index = GetGlyphIndex(ch);
GetGlyphFromIndex(out, index);
}
bool ResFontBase::HasGlyph(u16 c) const {
return FindGlyphIndex(c) != 0xFFFF;
}
FontEncoding ResFontBase::GetEncoding() const {
return static_cast<FontEncoding>(mFontInfo->encoding);
}
u16 ResFontBase::GetGlyphIndex(u16 c) const {
u16 index = FindGlyphIndex(c);
return (index != 0xFFFF) ? index : mFontInfo->alterCharIndex;
}
u16 ResFontBase::FindGlyphIndex(u16 c) const {
if (c == mLastCharCode) {
return mLastGlyphIndex;
}
mLastCharCode = c;
for (FontCodeMap *it = mFontInfo->fontMap; it != NULL; it = it->next) {
if (it->firstChar <= c && c <= it->lastChar) {
mLastGlyphIndex = FindGlyphIndex(it, c);
return mLastGlyphIndex;
}
}
mLastGlyphIndex = 0xFFFF;
return mLastGlyphIndex;
}
u16 ResFontBase::FindGlyphIndex(const FontCodeMap *map, u16 c) const {
struct CMapScanEntry {
u16 code; // at 0x0
u16 index; // at 0x2
};
struct CMapInfoScan {
u16 num; // at 0x0
CMapScanEntry entries[]; // at 0x2
};
u16 index = 0xFFFF;
switch (map->mappingMethod) {
case FONT_MAPMETHOD_LINEAR: index = map->mapInfo[0] + (c - map->firstChar); break;
case FONT_MAPMETHOD_ARRAY: index = map->mapInfo[c - map->firstChar]; break;
case FONT_MAPMETHOD_SCAN:
const CMapInfoScan *info = reinterpret_cast<const CMapInfoScan *>(map->mapInfo);
const CMapScanEntry *s = info->entries;
const CMapScanEntry *e = &info->entries[info->num - 1];
while (s <= e) {
const CMapScanEntry *m = s + (e - s) / 2;
if (m->code < c) {
s = m + 1;
} else if (c < m->code) {
e = m - 1;
} else {
return m->index;
}
}
break;
}
return index;
}
const CharWidths &ResFontBase::GetCharWidthsFromIndex(u16 index) const {
for (const FontWidth *it = mFontInfo->fontWidth; it != NULL; it = it->next) {
if (it->firstChar <= index && index <= it->lastChar) {
return GetCharWidthsFromIndex(it, index);
}
}
return mFontInfo->defaultWidth;
}
const CharWidths &ResFontBase::GetCharWidthsFromIndex(const FontWidth *width, u16 index) const {
return width->widthTable[index - width->firstChar];
}
void ResFontBase::GetGlyphFromIndex(Glyph *out, u16 index) const {
const FontTextureGlyph *texGlyph = mFontInfo->fontGlyph;
u32 cellsInASheet = texGlyph->sheetRow * texGlyph->sheetLine;
u32 glyphCell = index % cellsInASheet;
u32 glyphSheet = index / cellsInASheet;
u32 unitX = glyphCell % texGlyph->sheetRow;
u32 unitY = glyphCell / texGlyph->sheetRow;
u32 pixelX = unitX * (texGlyph->cellWidth + 1);
u32 pixelY = unitY * (texGlyph->cellHeight + 1);
out->texture = texGlyph->sheetImage + (glyphSheet * texGlyph->sheetSize);
out->widths = GetCharWidthsFromIndex(index);
out->height = texGlyph->cellHeight;
out->format = static_cast<GXTexFmt>(texGlyph->sheetFormat);
out->texWidth = texGlyph->sheetWidth;
out->texHeight = texGlyph->sheetHeight;
out->cellX = pixelX + 1;
out->cellY = pixelY + 1;
}
} // namespace detail
} // namespace ut
} // namespace nw4r
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