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[haiku-development] Re: [PATCH][app_server][font] Display Chinese
- From: "Anthony Lee" <don.anthony.lee@xxxxxxxxx>
- To: haiku-development@xxxxxxxxxxxxx
- Date: Mon, 7 Jan 2008 00:42:32 +0800
Hi Stephan,
I try the r23267 tonight and noticed you've sumitted the old patch to SVN.
The old patch caused rendering problem (see screen_r23267.png
attached), sorry for that.
I attached the new patch by this mail against r23267, it is same as
the one on Haiku's timeline.
>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
I think the Haiku's FontDemo can't show rotated text,
but R5's FontDemo can show rotated text running on Haiku,
have a look in screen_patch2.png attached.
Thanks.
Anthony
On Jan 5, 2008 11:16 PM, Stephan Assmus <superstippi@xxxxxx> wrote:
> Hello Anthony,
>
> Anthony Lee wrote (2007-12-31, 07:11:32 [+0100]):
> > With the patch, now Haiku can display chinese well. You can find GPL'd
> > CJK font on "http://sourceforge.net/projects/wqy";
> >
> > The patch and screenshot attached to this mail.
>
> Thank you for your work! I am back home at my development machine. I will
> have a look at this patch and some of the other discussion in the related
> bug reports now. Sorry for the delay/silence and thanks again! :-)
>
> Best regards,
> -Stephan
>
>
>
Index: src/servers/app/FontEngine.cpp
===================================================================
--- src/servers/app/FontEngine.cpp (revision 23267)
+++ src/servers/app/FontEngine.cpp (working copy)
@@ -332,12 +332,25 @@
}
for (i = 0; i < bitmap.rows; i++) {
sl.reset_spans();
- const uint8* p = buf;
- for (j = 0; j < bitmap.width; j++) {
- if (*p)
- sl.add_cell(x + j, *p);
- ++p;
- }
+
+ if (bitmap.pixel_mode == FT_PIXEL_MODE_MONO) {
+ // font has built-in mono bitmap
+ agg::bitset_iterator bits(buf, 0);
+ int j;
+ for (j = 0; j < bitmap.width; j++) {
+ if (bits.bit())
+ sl.add_cell(x + j, agg::cover_full);
+ ++bits;
+ }
+ } else {
+ const uint8* p = buf;
+ for (j = 0; j < bitmap.width; j++) {
+ if (*p)
+ sl.add_cell(x + j, *p);
+ ++p;
+ }
+ }
+
buf += pitch;
if (sl.num_spans()) {
sl.finalize(y - i - 1);
@@ -422,56 +435,59 @@
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,
- fGlyphRendering ==
glyph_ren_native_mono ?
- FT_RENDER_MODE_MONO :
FT_RENDER_MODE_NORMAL);
+ fLastError = FT_Render_Glyph(fFace->glyph,
FT_RENDER_MODE_NORMAL);
if (fLastError == 0) {
- 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;
- }
+ 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;
}
break;
-
+
+
case glyph_ren_outline:
fPath.remove_all();
- 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));
+ if (decompose_ft_outline(fFace->glyph->outline, kFlipY,
+ fPath)) {
+
+ agg::rect_d bnd = fPath.bounding_rect();
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;
Attachment:
screen_r23267.png
Description: PNG image
Attachment:
screen_patch2.png
Description: PNG image
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