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[ft-paint] Implement FT_COLR_PAINTFORMAT_COMPOSITE

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pull/3938/head
Behdad Esfahbod 2 years ago
parent 0ec201446b
commit a0f7f9e61c
1 changed files with 57 additions and 10 deletions
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  1. 67
      src/hb-ft-colr.hh

67
src/hb-ft-colr.hh
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@ -30,6 +30,45 @@
#ifndef HB_NO_PAINT
static hb_paint_composite_mode_t
_hb_ft_paint_composite_mode (FT_Composite_Mode mode)
{
switch (mode)
{
case FT_COLR_COMPOSITE_CLEAR: return HB_PAINT_COMPOSITE_MODE_CLEAR;
case FT_COLR_COMPOSITE_SRC: return HB_PAINT_COMPOSITE_MODE_SRC;
case FT_COLR_COMPOSITE_DEST: return HB_PAINT_COMPOSITE_MODE_DEST;
case FT_COLR_COMPOSITE_SRC_OVER: return HB_PAINT_COMPOSITE_MODE_SRC_OVER;
case FT_COLR_COMPOSITE_DEST_OVER: return HB_PAINT_COMPOSITE_MODE_DEST_OVER;
case FT_COLR_COMPOSITE_SRC_IN: return HB_PAINT_COMPOSITE_MODE_SRC_IN;
case FT_COLR_COMPOSITE_DEST_IN: return HB_PAINT_COMPOSITE_MODE_DEST_IN;
case FT_COLR_COMPOSITE_SRC_OUT: return HB_PAINT_COMPOSITE_MODE_SRC_OUT;
case FT_COLR_COMPOSITE_DEST_OUT: return HB_PAINT_COMPOSITE_MODE_DEST_OUT;
case FT_COLR_COMPOSITE_SRC_ATOP: return HB_PAINT_COMPOSITE_MODE_SRC_ATOP;
case FT_COLR_COMPOSITE_DEST_ATOP: return HB_PAINT_COMPOSITE_MODE_DEST_ATOP;
case FT_COLR_COMPOSITE_XOR: return HB_PAINT_COMPOSITE_MODE_XOR;
case FT_COLR_COMPOSITE_PLUS: return HB_PAINT_COMPOSITE_MODE_PLUS;
case FT_COLR_COMPOSITE_SCREEN: return HB_PAINT_COMPOSITE_MODE_SCREEN;
case FT_COLR_COMPOSITE_OVERLAY: return HB_PAINT_COMPOSITE_MODE_OVERLAY;
case FT_COLR_COMPOSITE_DARKEN: return HB_PAINT_COMPOSITE_MODE_DARKEN;
case FT_COLR_COMPOSITE_LIGHTEN: return HB_PAINT_COMPOSITE_MODE_LIGHTEN;
case FT_COLR_COMPOSITE_COLOR_DODGE: return HB_PAINT_COMPOSITE_MODE_COLOR_DODGE;
case FT_COLR_COMPOSITE_COLOR_BURN: return HB_PAINT_COMPOSITE_MODE_COLOR_BURN;
case FT_COLR_COMPOSITE_HARD_LIGHT: return HB_PAINT_COMPOSITE_MODE_HARD_LIGHT;
case FT_COLR_COMPOSITE_SOFT_LIGHT: return HB_PAINT_COMPOSITE_MODE_SOFT_LIGHT;
case FT_COLR_COMPOSITE_DIFFERENCE: return HB_PAINT_COMPOSITE_MODE_DIFFERENCE;
case FT_COLR_COMPOSITE_EXCLUSION: return HB_PAINT_COMPOSITE_MODE_EXCLUSION;
case FT_COLR_COMPOSITE_MULTIPLY: return HB_PAINT_COMPOSITE_MODE_MULTIPLY;
case FT_COLR_COMPOSITE_HSL_HUE: return HB_PAINT_COMPOSITE_MODE_HSL_HUE;
case FT_COLR_COMPOSITE_HSL_SATURATION: return HB_PAINT_COMPOSITE_MODE_HSL_SATURATION;
case FT_COLR_COMPOSITE_HSL_COLOR: return HB_PAINT_COMPOSITE_MODE_HSL_COLOR;
case FT_COLR_COMPOSITE_HSL_LUMINOSITY: return HB_PAINT_COMPOSITE_MODE_HSL_LUMINOSITY;
case FT_COLR_COMPOSITE_MAX: HB_FALLTHROUGH;
default: return HB_PAINT_COMPOSITE_MODE_CLEAR;
}
}
static void
_hb_ft_paint (FT_OpaquePaint opaque_paint,
const hb_ft_font_t *ft_font,
@ -43,7 +82,7 @@ _hb_ft_paint (FT_OpaquePaint opaque_paint,
if (!FT_Get_Paint (ft_face, opaque_paint, &paint))
return;
#define RECURSE(other_paint) \
#define paint_recurse(other_paint) \
_hb_ft_paint (other_paint, ft_font, font, paint_funcs, paint_data, palette, foreground)
switch (paint.format)
@ -56,7 +95,7 @@ _hb_ft_paint (FT_OpaquePaint opaque_paint,
&other_paint))
{
paint_funcs->push_group (paint_data);
RECURSE (other_paint);
paint_recurse (other_paint);
paint_funcs->pop_group (paint_data, HB_PAINT_COMPOSITE_MODE_SRC_OVER);
}
}
@ -90,7 +129,7 @@ _hb_ft_paint (FT_OpaquePaint opaque_paint,
ft_font->lock.unlock ();
paint_funcs->push_clip_glyph (paint_data, paint.u.glyph.glyphID, font);
ft_font->lock.lock ();
RECURSE (paint.u.glyph.paint);
paint_recurse (paint.u.glyph.paint);
paint_funcs->pop_clip (paint_data);
//paint_funcs->pop_inverse_root_transform (paint_data);
}
@ -102,7 +141,7 @@ _hb_ft_paint (FT_OpaquePaint opaque_paint,
if (FT_Get_Color_Glyph_Paint (ft_face, paint.u.colr_glyph.glyphID,
FT_COLOR_NO_ROOT_TRANSFORM,
&other_paint))
RECURSE (other_paint);
paint_recurse (other_paint);
}
break;
case FT_COLR_PAINTFORMAT_TRANSFORM:
@ -114,7 +153,7 @@ _hb_ft_paint (FT_OpaquePaint opaque_paint,
paint.u.transform.affine.yy / 65536.f,
paint.u.transform.affine.dx / 65536.f,
paint.u.transform.affine.dy / 65536.f);
RECURSE (paint.u.transform.paint);
paint_recurse (paint.u.transform.paint);
paint_funcs->pop_transform (paint_data);
}
break;
@ -124,7 +163,7 @@ _hb_ft_paint (FT_OpaquePaint opaque_paint,
0.f, 0.f, 0.f, 0.f,
paint.u.translate.dx / 65536.f,
paint.u.translate.dy / 65536.f);
RECURSE (paint.u.translate.paint);
paint_recurse (paint.u.translate.paint);
paint_funcs->pop_transform (paint_data);
}
break;
@ -143,7 +182,7 @@ _hb_ft_paint (FT_OpaquePaint opaque_paint,
1.f, 0.f, 0.f, 1.f,
+paint.u.scale.center_x / 65536.f,
+paint.u.scale.center_y / 65536.f);
RECURSE (paint.u.scale.paint);
paint_recurse (paint.u.scale.paint);
paint_funcs->pop_transform (paint_data);
paint_funcs->pop_transform (paint_data);
paint_funcs->pop_transform (paint_data);
@ -151,12 +190,20 @@ _hb_ft_paint (FT_OpaquePaint opaque_paint,
break;
case FT_COLR_PAINTFORMAT_ROTATE: break;
case FT_COLR_PAINTFORMAT_SKEW: break;
case FT_COLR_PAINTFORMAT_COMPOSITE: break;
case FT_COLR_PAINTFORMAT_COMPOSITE:
{
paint_funcs->push_group (paint_data);
paint_recurse (paint.u.composite.backdrop_paint);
paint_funcs->push_group (paint_data);
paint_recurse (paint.u.composite.source_paint);
paint_funcs->pop_group (paint_data, _hb_ft_paint_composite_mode (paint.u.composite.composite_mode));
paint_funcs->pop_group (paint_data, HB_PAINT_COMPOSITE_MODE_SRC_OVER);
}
break;
case FT_COLR_PAINT_FORMAT_MAX: break;
case FT_COLR_PAINTFORMAT_UNSUPPORTED: break;
}
#undef RECURSE
#undef paint_recurse
}
static bool

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