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support flipping glyph for subpixel rendering

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Vincent Wei
2019-01-13 16:59:36 +08:00
parent 4761333a1a
commit 83c8984c74
2 changed files with 55 additions and 1 deletions
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src/font/logfont.c
+3 -1
View File
@@ -74,7 +74,6 @@ static PLOGFONT gdiCreateLogFont (const char* type, const char* family,
int sbc_value, mbc_value = 0;
char dev_family [LEN_FONT_NAME + 1];
DEVFONT* sbc_devfont, *mbc_devfont;
DWORD glyph_bmptype;
// is valid style?
if (style == 0xFFFFFFFF)
@@ -225,6 +224,7 @@ static PLOGFONT gdiCreateLogFont (const char* type, const char* family,
/*reset size of logfont*/
log_font->size = log_font->ascent + log_font->descent;
#if 0 // VincentWei: support fillping for subpixel renderer
/* reset style of logfont */
/* remove HORZVERT style if weight is subpixel */
if ((log_font->style & FS_RENDER_MASK) == FS_RENDER_SUBPIXEL) {
@@ -233,6 +233,7 @@ static PLOGFONT gdiCreateLogFont (const char* type, const char* family,
}
/* remove HORZVERT style if the glyph bmptype is subpixel */
DWORD glyph_bmptype;
glyph_bmptype = log_font->sbc_devfont->font_ops->get_glyph_type
(log_font, log_font->sbc_devfont) & DEVFONTGLYPHTYPE_MASK_BMPTYPE;
if (glyph_bmptype == GLYPHBMP_TYPE_SUBPIXEL) {
@@ -244,6 +245,7 @@ static PLOGFONT gdiCreateLogFont (const char* type, const char* family,
if (glyph_bmptype == GLYPHBMP_TYPE_SUBPIXEL)
log_font->style &= ~FS_FLIP_HORZVERT;
}
#endif
_DBG_PRINTF ("FONT>LogFont: created info: type: %s, family: %s, style: %p, charset: %s, size: %d.\n",
log_font->type, log_font->family, (PVOID)log_font->style, log_font->charset,
src/newgdi/glyph.c
+52
View File
@@ -3647,6 +3647,52 @@ static BYTE* _gdi_flip_greybitmap_horz (BYTE* src_bits, const SIZE* size, int pi
return _scaled_bits;
}
static BYTE* _gdi_flip_subpixels_horz (BYTE* src_bits, const SIZE* size, int pitch)
{
BYTE* dst_line;
const BYTE* src_line;
int i, j;
BYTE* inter_line;
src_line = src_bits;
if (src_bits != _scaled_bits) {
_prepare_scaled_bits (pitch * (size->cy + 1));
if (_scaled_bits == NULL)
return NULL;
inter_line = NULL;
dst_line = _scaled_bits;
}
else {
inter_line = src_bits + (pitch * size->cy);
dst_line = src_bits;
}
src_line = src_bits;
dst_line = _scaled_bits;
for (i = 0; i < size->cy; i ++) {
const BYTE* test_line;
if (inter_line) {
memcpy (inter_line, src_line, pitch);
test_line = inter_line;
}
else {
test_line = src_line;
}
for (j = 0; j < size->cx; j++) {
dst_line [j*3+0] = test_line [(size->cx - j - 1)*3+0];
dst_line [j*3+1] = test_line [(size->cx - j - 1)*3+1];
dst_line [j*3+2] = test_line [(size->cx - j - 1)*3+2];
}
dst_line += pitch;
src_line += pitch;
}
return _scaled_bits;
}
static BYTE* _gdi_flip_bitmap_vert (BYTE* src_bits, const SIZE* size, int pitch)
{
BYTE* dst_line;
@@ -3790,6 +3836,12 @@ static BOOL _gdi_get_glyph_data (PDC pdc, Glyph32 glyph_value,
data = (BYTE*)(*devfont->font_ops->get_glyph_greybitmap) (logfont, devfont,
REAL_GLYPH(glyph_value), &pitch, &scale);
ctxt->cb = _dc_ft2subpixel_scan_line;
/* flip the subpixeled pixmap */
if (logfont->style & FS_FLIP_HORZ)
data = _gdi_flip_subpixels_horz (data, bbox, pitch);
if (logfont->style & FS_FLIP_VERT)
data = _gdi_flip_bitmap_vert (data, bbox, pitch);
}
#endif
break;