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freetype2
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[base] Netpbm image tracing. 

* src/base/ftobjs.c (FT_Load_Glyph): Trace bitmap size.
(FT_Render_Glyph_Internal): Trace bitmap in Netpbm format.

* src/smooth/ftgrays.c (gray_sweep): Sweep remnants of span tracing.
This commit is contained in:
Alexei Podtelezhnikov 2017-10-14 22:45:11 -04:00
parent 7384085201
commit 6bea49e026
3 changed files with 58 additions and 4 deletions
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9
ChangeLog
View File

@ -1,3 +1,12 @@
2017-10-14 Alexei Podtelezhnikov <apodtele@gmail.com>
[base] Netpbm image tracing.
* src/base/ftobjs.c (FT_Load_Glyph): Trace bitmap size.
(FT_Render_Glyph_Internal): Trace bitmap in Netpbm format.
* src/smooth/ftgrays.c (gray_sweep): Sweep remnants of span tracing.
2017-10-14 Alexei Podtelezhnikov <apodtele@gmail.com>
* builds/windows/ftdebug.c (FT_Message): Print to stderr.

49
src/base/ftobjs.c
View File

@ -1004,6 +1004,10 @@
ft_glyphslot_preset_bitmap( slot, mode, NULL );
}
FT_TRACE5(( " bitmap pixel_mode: %d\n" , slot->bitmap.pixel_mode ));
FT_TRACE5(( " bitmap dimensions: %dx%d\n" , slot->bitmap.width,
slot->bitmap.rows ));
Exit:
return error;
}
@ -4583,6 +4587,51 @@
}
}
/*
* Dump bitmap in Netpbm format (PBM or PGM).
*/
/* we use FT_TRACE2 in this block */
if ( ft_trace_levels[trace_bitmap] >= 2 &&
!error &&
slot->bitmap.rows < 128U &&
slot->bitmap.width < 128U )
{
int rows = (int)slot->bitmap.rows;
int width = (int)slot->bitmap.width;
int pitch = slot->bitmap.pitch;
int i, j, m;
unsigned char* topleft = slot->bitmap.buffer;
if ( pitch < 0 )
topleft -= pitch * ( rows - 1 );
FT_TRACE2(( "Netpbm image: start\n" ));
switch ( slot->bitmap.pixel_mode )
{
case FT_PIXEL_MODE_MONO:
FT_TRACE2(( "P1 %d %d\n", width, rows ));
for ( i = 0; i < rows; i++ )
{
for ( j = 0; j < width; )
for ( m = 128; m > 0 && j < width; m >>= 1, j++ )
FT_TRACE2(( " %d", ( topleft[i * pitch + j / 8] & m ) != 0 ));
FT_TRACE2(( "\n" ));
}
break;
default:
FT_TRACE2(( "P2 %d %d 255\n", width, rows ));
for ( i = 0; i < rows; i++ )
{
for ( j = 0; j < width; j += 1 )
FT_TRACE2(( " %3u", topleft[i * pitch + j] ));
FT_TRACE2(( "\n" ));
}
}
FT_TRACE2(( "Netpbm image: end\n" ));
}
#undef FT_COMPONENT
#define FT_COMPONENT trace_objs

4
src/smooth/ftgrays.c
View File

@ -1300,8 +1300,6 @@ typedef ptrdiff_t FT_PtrDist;
int y;
FT_TRACE7(( "gray_sweep: start\n" ));
for ( y = ras.min_ey; y < ras.max_ey; y++ )
{
PCell cell = ras.ycells[y - ras.min_ey];
@ -1327,8 +1325,6 @@ typedef ptrdiff_t FT_PtrDist;
if ( cover != 0 )
gray_hline( RAS_VAR_ x, y, cover, ras.max_ex - x );
}
FT_TRACE7(( "gray_sweep: end\n" ));
}