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applied patch by Anthony Lee:

Browse Source 
* fixed rendering of certain chinese fonts

(I think it fixes rendering of bitmap fonts in general, but it should not
support rotated text AFAIKT, since that is only supported for vector fonts)

Nice work, Anthony, thanks!


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23261 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Stephan Aßmus 2008-01-05 16:46:53 +00:00
parent 0f928a18d2
commit 0e4fdb4f97
1 changed files with 50 additions and 48 deletions
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98
src/servers/app/FontEngine.cpp
View File

@ -5,6 +5,7 @@
* Authors:
* Maxim Shemanarev <mcseemagg@yahoo.com>
* Stephan Aßmus <superstippi@gmx.de>
* Anthony Lee <don.anthony.lee@gmail.com>
*/
//----------------------------------------------------------------------------
@ -421,59 +422,56 @@ FontEngine::PrepareGlyph(unsigned glyphCode)
switch(fGlyphRendering) {
case glyph_ren_native_mono:
fLastError = FT_Render_Glyph(fFace->glyph, FT_RENDER_MODE_MONO);
if (fLastError == 0) {
decompose_ft_bitmap_mono(fFace->glyph->bitmap,
fFace->glyph->bitmap_left,
kFlipY ? -fFace->glyph->bitmap_top :
fFace->glyph->bitmap_top,
kFlipY,
fScanlineBin,
fScanlineStorageBin);
fBounds.x1 = fScanlineStorageBin.min_x();
fBounds.y1 = fScanlineStorageBin.min_y();
fBounds.x2 = fScanlineStorageBin.max_x();
fBounds.y2 = fScanlineStorageBin.max_y();
fDataSize = fScanlineStorageBin.byte_size();
fDataType = glyph_data_mono;
return true;
}
break;
case glyph_ren_native_gray8:
fLastError = FT_Render_Glyph(fFace->glyph, FT_RENDER_MODE_NORMAL);
fLastError = FT_Render_Glyph(fFace->glyph,
fGlyphRendering == glyph_ren_native_mono ?
FT_RENDER_MODE_MONO : FT_RENDER_MODE_NORMAL);
if (fLastError == 0) {
decompose_ft_bitmap_gray8(fFace->glyph->bitmap,
fFace->glyph->bitmap_left,
kFlipY ? -fFace->glyph->bitmap_top :
fFace->glyph->bitmap_top,
kFlipY,
fScanlineAA,
fScanlineStorageAA);
fBounds.x1 = fScanlineStorageAA.min_x();
fBounds.y1 = fScanlineStorageAA.min_y();
fBounds.x2 = fScanlineStorageAA.max_x();
fBounds.y2 = fScanlineStorageAA.max_y();
fDataSize = fScanlineStorageAA.byte_size();
fDataType = glyph_data_gray8;
return true;
switch (fFace->glyph->bitmap.pixel_mode) {
case FT_PIXEL_MODE_MONO:
decompose_ft_bitmap_mono(fFace->glyph->bitmap,
fFace->glyph->bitmap_left,
kFlipY ? -fFace->glyph->bitmap_top
: fFace->glyph->bitmap_top,
kFlipY, fScanlineBin, fScanlineStorageBin);
fBounds.x1 = fScanlineStorageBin.min_x();
fBounds.y1 = fScanlineStorageBin.min_y();
fBounds.x2 = fScanlineStorageBin.max_x();
fBounds.y2 = fScanlineStorageBin.max_y();
fDataSize = fScanlineStorageBin.byte_size();
fDataType = glyph_data_mono;
return true;
case FT_PIXEL_MODE_GRAY:
decompose_ft_bitmap_gray8(fFace->glyph->bitmap,
fFace->glyph->bitmap_left,
kFlipY ? -fFace->glyph->bitmap_top
: fFace->glyph->bitmap_top,
kFlipY, fScanlineAA, fScanlineStorageAA);
fBounds.x1 = fScanlineStorageAA.min_x();
fBounds.y1 = fScanlineStorageAA.min_y();
fBounds.x2 = fScanlineStorageAA.max_x();
fBounds.y2 = fScanlineStorageAA.max_y();
fDataSize = fScanlineStorageAA.byte_size();
fDataType = glyph_data_gray8;
return true;
default:
break;
}
}
break;
case glyph_ren_outline:
fPath.remove_all();
if (decompose_ft_outline(fFace->glyph->outline, kFlipY,
fPath)) {
agg::rect_d bnd = fPath.bounding_rect();
if (decompose_ft_outline(fFace->glyph->outline, kFlipY, fPath)) {
agg::rect_d bounds = fPath.bounding_rect();
fBounds.x1 = int(floor(bounds.x1));
fBounds.y1 = int(floor(bounds.y1));
fBounds.x2 = int(ceil(bounds.x2));
fBounds.y2 = int(ceil(bounds.y2));
fDataSize = fPath.byte_size();
fDataType = glyph_data_outline;
fBounds.x1 = int(floor(bnd.x1));
fBounds.y1 = int(floor(bnd.y1));
fBounds.x2 = int(ceil(bnd.x2));
fBounds.y2 = int(ceil(bnd.y2));
return true;
}
break;
@ -580,11 +578,15 @@ FontEngine::Init(const char* fontFilePath, unsigned faceIndex, double size,
}
FT_Set_Pixel_Sizes(fFace,
unsigned(size * 64.0) >> 6, // pixel_width
unsigned(size * 64.0) >> 6); // pixel_height
unsigned(size * 64.0) >> 6, // pixel_width
unsigned(size * 64.0) >> 6); // pixel_height
if (charMap != FT_ENCODING_NONE)
if (charMap != FT_ENCODING_NONE) {
fLastError = FT_Select_Charmap(fFace, charMap);
} else {
if (FT_Select_Charmap(fFace, FT_ENCODING_UNICODE) != 0)
fLastError = FT_Select_Charmap(fFace, FT_ENCODING_NONE);
}
return fLastError == 0;
}