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Cleaned up TrueType Rasterizer code

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This commit is contained in:
Alex Szpakowski
2013-01-27 17:18:11 -04:00
parent 383bed8098
commit 09ee533cea
1 changed files with 12 additions and 19 deletions
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src/modules/font/freetype/TrueTypeRasterizer.cpp
+7 -14
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@@ -30,16 +30,9 @@ namespace font
namespace freetype namespace freetype
{ {
struct la
{
unsigned char l,a;
};
TrueTypeRasterizer::TrueTypeRasterizer(FT_Library library, Data *data, int size) TrueTypeRasterizer::TrueTypeRasterizer(FT_Library library, Data *data, int size)
: data(data) : data(data)
{ {
data->retain();
if (FT_New_Memory_Face(library, if (FT_New_Memory_Face(library,
(const FT_Byte *)data->getData(), /* first byte in memory */ (const FT_Byte *)data->getData(), /* first byte in memory */
data->getSize(), /* size in bytes */ data->getSize(), /* size in bytes */
@@ -55,6 +48,8 @@ TrueTypeRasterizer::TrueTypeRasterizer(FT_Library library, Data *data, int size)
metrics.ascent = s.ascender >> 6; metrics.ascent = s.ascender >> 6;
metrics.descent = s.descender >> 6; metrics.descent = s.descender >> 6;
metrics.height = s.height >> 6; metrics.height = s.height >> 6;
data->retain();
} }
TrueTypeRasterizer::~TrueTypeRasterizer() TrueTypeRasterizer::~TrueTypeRasterizer()
@@ -81,7 +76,7 @@ GlyphData *TrueTypeRasterizer::getGlyphData(unsigned int glyph) const
throw love::Exception("TrueTypeFont Loading vm->error: FT_Get_Glyph failed\n"); throw love::Exception("TrueTypeFont Loading vm->error: FT_Get_Glyph failed\n");
FT_Glyph_To_Bitmap(&ftglyph, FT_RENDER_MODE_NORMAL, 0, 1); FT_Glyph_To_Bitmap(&ftglyph, FT_RENDER_MODE_NORMAL, 0, 1);
FT_BitmapGlyph bitmap_glyph = (FT_BitmapGlyph)ftglyph; FT_BitmapGlyph bitmap_glyph = (FT_BitmapGlyph) ftglyph;
FT_Bitmap &bitmap = bitmap_glyph->bitmap; //just to make things easier FT_Bitmap &bitmap = bitmap_glyph->bitmap; //just to make things easier
// Get metrics // Get metrics
@@ -93,18 +88,16 @@ GlyphData *TrueTypeRasterizer::getGlyphData(unsigned int glyph) const
GlyphData *glyphData = new GlyphData(glyph, glyphMetrics, GlyphData::FORMAT_LUMINANCE_ALPHA); GlyphData *glyphData = new GlyphData(glyph, glyphMetrics, GlyphData::FORMAT_LUMINANCE_ALPHA);
{ int size = bitmap.rows * bitmap.width;
int size = bitmap.rows*bitmap.width; unsigned char *dst = (unsigned char *) glyphData->getData();
unsigned char *dst = (unsigned char *)glyphData->getData();
// Note that bitmap.buffer contains only luminosity. We copy that single value to // Note that bitmap.buffer contains only luminosity. We copy that single value to
// our luminosity-alpha format. // our luminosity-alpha format.
for (int i = 0; i<size; i++) for (int i = 0; i < size; i++)
{ {
dst[2*i] = 255; dst[2*i] = 255;
dst[2*i+1] = bitmap.buffer[i]; dst[2*i+1] = bitmap.buffer[i];
} }
}
// Having copied the data over, we can destroy the glyph // Having copied the data over, we can destroy the glyph
FT_Done_Glyph(ftglyph); FT_Done_Glyph(ftglyph);
@@ -115,7 +108,7 @@ GlyphData *TrueTypeRasterizer::getGlyphData(unsigned int glyph) const
int TrueTypeRasterizer::getNumGlyphs() const int TrueTypeRasterizer::getNumGlyphs() const
{ {
return 256; return face->num_glyphs;
} }
} // freetype } // freetype