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Fixed font atlas generation.

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Relintai 2024-01-04 10:55:20 +01:00
parent b0da9c888c
commit 5e9954bcf7
1 changed files with 43 additions and 55 deletions
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98
sfw/render_core/text_renderer.cpp
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@ -153,80 +153,69 @@ void TextRenderer::font_face_from_mem(const char *tag, const void *ttf_data, uns
//f->program = shader(vs, fs, "vertexPosition,instanceGlyph", "outColor", NULL);
f->program.instance();
//f->program.instance();
// figure out what ranges we're about to bake
#define MERGE_TABLE(table, table_size) \
int orig_size = sorted.size(); \
sorted.resize(orig_size + table_size); \
\
uint64_t *p = sorted.ptrw(); \
\
for (int i = 0; i < table_size; ++i) { \
p[orig_size + i] = table[i]; \
}
#define MERGE_TABLE(table) \
do { \
for (unsigned i = 0; table[i]; i += 2) { \
uint64_t begin = table[i + 0], end = table[i + 1]; \
for (unsigned j = begin; j <= end; ++j) { \
sorted.push_back(j); \
} \
} \
} while (0)
#define MERGE_PACKED_TABLE(codepoint_begin, table, table_size) \
int orig_size = sorted.size(); \
int begin = codepoint_begin; \
sorted.resize(orig_size + table_size); \
\
uint64_t *p = sorted.ptrw(); \
\
for (int i = 0; i < table_size; ++i) { \
p[orig_size + i] = (unsigned)(begin + table[i]); \
begin += table[i]; \
}
#define MERGE_PACKED_TABLE(codepoint_begin, table, table_size) \
do { \
for (int i = 0, begin = codepoint_begin, end = table_size; i < end; i++) { \
sorted.push_back((unsigned)(begin + table[i])); \
begin += table[i]; \
} \
} while (0)
Vector<uint64_t> sorted;
if (flags & FONT_ASCII) {
MERGE_TABLE(table_common, 5);
MERGE_TABLE(table_common);
}
if (flags & FONT_EM) {
MERGE_TABLE(table_emoji, 7);
MERGE_TABLE(table_emoji);
}
if (flags & FONT_EU) {
MERGE_TABLE(table_eastern_europe, 19);
MERGE_TABLE(table_eastern_europe);
}
if (flags & FONT_RU) {
MERGE_TABLE(table_western_europe, 15);
MERGE_TABLE(table_western_europe);
}
if (flags & FONT_EL) {
MERGE_TABLE(table_western_europe, 15);
MERGE_TABLE(table_western_europe);
}
if (flags & FONT_AR) {
MERGE_TABLE(table_middle_east, 7);
MERGE_TABLE(table_middle_east);
}
if (flags & FONT_HE) {
MERGE_TABLE(table_middle_east, 7);
MERGE_TABLE(table_middle_east);
}
if (flags & FONT_TH) {
MERGE_TABLE(table_thai, 5);
MERGE_TABLE(table_thai);
}
if (flags & FONT_VI) {
MERGE_TABLE(table_vietnamese, 15);
MERGE_TABLE(table_vietnamese);
}
if (flags & FONT_KR) {
MERGE_TABLE(table_korean, 7);
MERGE_TABLE(table_korean);
}
if (flags & FONT_JP) {
{
MERGE_TABLE(table_chinese_japanese_common, 7);
}
{
MERGE_PACKED_TABLE(0x4E00, packed_table_japanese, 2999);
}
MERGE_TABLE(table_chinese_japanese_common);
MERGE_PACKED_TABLE(0x4E00, packed_table_japanese, 2999);
}
if (flags & FONT_ZH) {
{
MERGE_TABLE(table_chinese_japanese_common, 7);
}
{
MERGE_PACKED_TABLE(0x4E00, packed_table_chinese, 2500);
}
MERGE_TABLE(table_chinese_japanese_common);
MERGE_PACKED_TABLE(0x4E00, packed_table_chinese, 2500);
} // zh-simplified
if (flags & FONT_ZH) {
MERGE_TABLE(table_chinese_punctuation, 3);
MERGE_TABLE(table_chinese_punctuation);
} // both zh-simplified and zh-full
// if(flags & FONT_ZH) { MERGE_TABLE(table_chinese_full); } // zh-full
@ -250,18 +239,18 @@ void TextRenderer::font_face_from_mem(const char *tag, const void *ttf_data, uns
int charCount = sorted[sorted.size() - 1] - sorted[0] + 1; // 0xEFFFF;
f->cdata = (stbtt_packedchar *)calloc(1, sizeof(stbtt_packedchar) * charCount);
f->iter2cp = memnew_arr(unsigned, charCount);
f->cp2iter = memnew_arr(unsigned, charCount);
f->iter2cp = memnew_arr(unsigned int, charCount);
f->cp2iter = memnew_arr(unsigned int, charCount);
for (int i = 0; i < charCount; ++i) {
f->iter2cp[i] = f->cp2iter[i] = 0xFFFD; // default invalid glyph
}
// find first char
// find first ch./co
{
stbtt_fontinfo info = { 0 };
stbtt_InitFont(&info, (const unsigned char *)ttf_data, stbtt_GetFontOffsetForIndex((const unsigned char *)ttf_data, 0));
for (int i = 0, end = sorted.size(); i < end; ++i) {
for (int i = 0, end = sorted.size() - 1; i < end; ++i) {
unsigned glyph = sorted[i];
if (!stbtt_FindGlyphIndex(&info, glyph))
continue;
@ -275,8 +264,8 @@ void TextRenderer::font_face_from_mem(const char *tag, const void *ttf_data, uns
ERR_FAIL_COND("Failed to initialize atlas font");
}
stbtt_PackSetOversampling(&pc, flags & FONT_OVERSAMPLE_X ? 2 : 1, flags & FONT_OVERSAMPLE_Y ? 2 : 1); /*useful on small fonts*/
int count = 0;
for (int i = 0, num = sorted.size(); i < num; ++i) {
unsigned int count = 0;
for (int i = 0, num = sorted.size() - 1; i < num; ++i) {
uint64_t begin = sorted[i], end = sorted[i];
while (i < (num - 1) && (sorted[i + 1] - sorted[i]) == 1) {
end = sorted[++i];
@ -299,8 +288,6 @@ void TextRenderer::font_face_from_mem(const char *tag, const void *ttf_data, uns
stbtt_PackEnd(&pc);
f->num_glyphs = count;
//CRASH_COND(f->num_glyphs < (unsigned int)charCount);
// calculate vertical font metrics
stbtt_fontinfo info = { 0 };
stbtt_InitFont(&info, (const unsigned char *)ttf_data, stbtt_GetFontOffsetForIndex((const unsigned char *)ttf_data, 0));
@ -375,9 +362,10 @@ void TextRenderer::font_face_from_mem(const char *tag, const void *ttf_data, uns
// last chance to inspect the font atlases
//if (flag("--font-debug"))
String pngname = "font_debug" + itos(index) + " .png";
stbi_write_png(pngname.utf8().get_data(), f->width, f->height, 1, bitmap, 0);
memfree(bitmap);
//String pngname = "font_debug" + itos(index) + " .png";
//stbi_write_png(pngname.utf8().get_data(), f->width, f->height, 1, bitmap, 0);
memdelete_arr(bitmap);
/*