[Git][freetype/freetype-demos][master] * src/ftstring.c (Render_Waterfall): Avoid bitmap reloading.

[Alexei Podtelezhnikov (@apodtele)]

Alexei Podtelezhnikov pushed to branch master at FreeType / FreeType Demo Programs

Commits:

• da9f2a31
  by Alexei Podtelezhnikov at 2023-01-26T22:57:38-05:00

  * src/ftstring.c (Render_Waterfall): Avoid bitmap reloading.
  
  This hides horrible performance of compressed PCF fonts.
  

1 changed file:

• src/ftstring.c

Changes:

src/ftstring.c

---

...	...	@@ -862,10 +862,13 @@
862	862
863	863	while ( 1 )
864	864	{
865		- pt_size += step;
	865	+ pt_size += step;
	866	+ pt_height = handle->scaler.height;
866	867
867	868	FTDemo_Set_Current_Charsize( handle, pt_size, status.res );
868		- FTDemo_String_Load( handle, &status.sc );
	869	+ /* avoid reloading repetitive sizes with bitmap fonts */
	870	+ if ( handle->scaler.height != pt_height )
	871	+ FTDemo_String_Load( handle, &sc );
869	872
870	873	error = FTDemo_Get_Size( handle, &size );
871	874	if ( error )
...	...	@@ -886,6 +889,7 @@
886	889	x, y + ( size->metrics.descender >> 6 ) );
887	890	}
888	891
	892	+ /* restore the original size */
889	893	FTDemo_Set_Current_Charsize( handle, status.ptsize, status.res );
890	894	FTDemo_String_Load( handle, &status.sc );
891	895

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