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fontcache bug fixes

This commit is contained in:
Jack Andersen 2015-11-23 16:10:47 -10:00
parent 0514ba9670
commit 99d85ba60c
1 changed files with 45 additions and 40 deletions
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85
specter/lib/FontCache.cpp
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@ -4,6 +4,7 @@
#include FT_GZIP_H
#include FT_SYSTEM_H
#include FT_OUTLINE_H
#include <freetype/internal/internal.h>
#include <freetype/internal/ftstream.h>
@ -113,6 +114,12 @@ static void MemcpyRect(RgbaPixel* img, const FT_Bitmap* bmp, unsigned slice, uns
}
}
static inline void GridFitGlyph(FT_GlyphSlot slot, FT_UInt& width, FT_UInt& height)
{
width = slot->metrics.width >> 6;
height = slot->metrics.height >> 6;
}
FontAtlas::FontAtlas(boo::IGraphicsDataFactory* gf, FT_Face face,
bool subpixel, Athena::io::FileWriter& writer)
@ -135,19 +142,20 @@ FontAtlas::FontAtlas(boo::IGraphicsDataFactory* gf, FT_Face face,
{
++glyphCount;
FT_Load_Glyph(face, gindex, baseFlags);
unsigned width = face->glyph->metrics.width / 64;
if (subpixel)
width /= 3;
curLineHeight = std::max(curLineHeight, unsigned(face->glyph->metrics.height / 64));
if (curLineWidth + width + 1 > TEXMAP_DIM || totalHeight + curLineHeight + 1 > TEXMAP_DIM)
FT_UInt width, height;
GridFitGlyph(face->glyph, width, height);
if (curLineWidth + width + 1 > TEXMAP_DIM)
{
if (totalHeight + curLineHeight + 1 > TEXMAP_DIM)
{
totalHeight = 1;
++fullTexmapLayers;
}
else
totalHeight += curLineHeight + 1;
totalHeight += curLineHeight + 1;
curLineHeight = 0;
curLineWidth = 1;
}
curLineHeight = std::max(curLineHeight, height);
if (totalHeight + curLineHeight + 1 > TEXMAP_DIM)
{
totalHeight = 1;
++fullTexmapLayers;
//printf("StagedB: %u\n", gindex);
curLineHeight = 0;
curLineWidth = 1;
}
@ -169,6 +177,7 @@ FontAtlas::FontAtlas(boo::IGraphicsDataFactory* gf, FT_Face face,
size_t bufSz;
if (fullTexmapLayers)
{
//printf("ALLOC: %u\n", fullTexmapLayers + 1);
size_t count = TEXMAP_DIM * TEXMAP_DIM * (fullTexmapLayers + 1);
texmap.reset(new RgbaPixel[count]);
bufSz = count * sizeof(RgbaPixel);
@ -206,16 +215,18 @@ FontAtlas::FontAtlas(boo::IGraphicsDataFactory* gf, FT_Face face,
g.m_rightPadding = 0;
g.m_verticalOffset = face->glyph->metrics.horiBearingY / 64;
g.m_kernIdx = 0;
curLineHeight = std::max(curLineHeight, face->glyph->bitmap.rows);
if (curLineWidth + g.m_width + 1 > TEXMAP_DIM || totalHeight + curLineHeight + 1 > TEXMAP_DIM)
if (curLineWidth + g.m_width + 1 > TEXMAP_DIM)
{
if (totalHeight + curLineHeight + 1 > TEXMAP_DIM)
{
totalHeight = 1;
++fullTexmapLayers;
}
else
totalHeight += curLineHeight + 1;
totalHeight += curLineHeight + 1;
curLineHeight = 0;
curLineWidth = 1;
}
curLineHeight = std::max(curLineHeight, face->glyph->bitmap.rows);
if (totalHeight + curLineHeight + 1 > TEXMAP_DIM)
{
totalHeight = 1;
++fullTexmapLayers;
//printf("RealB: %u\n", gindex);
curLineHeight = 0;
curLineWidth = 1;
}
@ -236,6 +247,7 @@ FontAtlas::FontAtlas(boo::IGraphicsDataFactory* gf, FT_Face face,
size_t bufSz;
if (fullTexmapLayers)
{
//printf("ALLOC: %u\n", fullTexmapLayers + 1);
size_t count = TEXMAP_DIM * TEXMAP_DIM * (fullTexmapLayers + 1);
texmap.reset(new GreyPixel[count]);
bufSz = count * sizeof(GreyPixel);
@ -271,18 +283,20 @@ FontAtlas::FontAtlas(boo::IGraphicsDataFactory* gf, FT_Face face,
g.m_leftPadding = 0;
g.m_advance = face->glyph->advance.x;
g.m_rightPadding = 0;
g.m_verticalOffset = face->glyph->metrics.horiBearingY / 64;
g.m_verticalOffset = face->glyph->metrics.horiBearingY >> 6;
g.m_kernIdx = 0;
curLineHeight = std::max(curLineHeight, face->glyph->bitmap.rows);
if (curLineWidth + g.m_width + 1 > TEXMAP_DIM || totalHeight + curLineHeight + 1 > TEXMAP_DIM)
if (curLineWidth + g.m_width + 1 > TEXMAP_DIM)
{
if (totalHeight + curLineHeight + 1 > TEXMAP_DIM)
{
totalHeight = 1;
++fullTexmapLayers;
}
else
totalHeight += curLineHeight + 1;
totalHeight += curLineHeight + 1;
curLineHeight = 0;
curLineWidth = 1;
}
curLineHeight = std::max(curLineHeight, face->glyph->bitmap.rows);
if (totalHeight + curLineHeight + 1 > TEXMAP_DIM)
{
totalHeight = 1;
++fullTexmapLayers;
//printf("RealB: %u\n", gindex);
curLineHeight = 0;
curLineWidth = 1;
}
@ -314,15 +328,6 @@ FontCache::Library::~Library()
FT_Done_FreeType(m_lib);
}
static FT_Library InitLib()
{
FT_Library ret;
FT_Error err = FT_Init_FreeType(&ret);
if (err)
Log.report(LogVisor::FatalError, "unable to FT_Init_FreeType");
return ret;
}
FontCache::FontCache(const HECL::Runtime::FileStoreManager& fileMgr)
: m_fileMgr(fileMgr),
m_cacheRoot(m_fileMgr.getStoreRoot() + _S("/fontcache")),