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[colr] Add variation to rest of the paints

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pull/3938/head
Behdad Esfahbod 2 years ago
parent 5bce005346
commit 0757519092
1 changed files with 54 additions and 26 deletions
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  1. 80
      src/hb-ot-color-colr-table.hh

80
src/hb-ot-color-colr-table.hh
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@ -625,8 +625,12 @@ struct PaintRadialGradient
hb_color_line_t cl = { this, format };
c->funcs->radial_gradient (c->data, &cl,
(float)x0, (float)y0, (float)radius0,
(float)x1, (float)y1, (float)radius1);
x0 + c->instancer (varIdxBase, 0),
y0 + c->instancer (varIdxBase, 1),
x1 + c->instancer (varIdxBase, 3),
y1 + c->instancer (varIdxBase, 4),
radius0 + c->instancer (varIdxBase, 2),
radius1 + c->instancer (varIdxBase, 5));
}
unsigned int get_color_stops (unsigned int start,
@ -680,9 +684,10 @@ struct PaintSweepGradient
hb_color_line_t cl = { this, format };
c->funcs->sweep_gradient (c->data, &cl,
(float)centerX, (float)centerY,
(startAngle.to_float () + 1) * (float)M_PI,
(endAngle.to_float () + 1) * (float)M_PI);
centerX + c->instancer (varIdxBase, 0),
centerY + c->instancer (varIdxBase, 1),
(startAngle.to_float (c->instancer (varIdxBase, 2)) + 1) * (float) M_PI,
(endAngle.to_float (c->instancer (varIdxBase, 3)) + 1) * (float) M_PI);
}
unsigned int get_color_stops (unsigned int start,
@ -831,7 +836,10 @@ struct PaintTranslate
void paint_glyph (hb_paint_context_t *c, uint32_t varIdxBase) const
{
c->funcs->push_transform (c->data, 1., 0., 0., 1., (float)dx, (float)dy);
c->funcs->push_transform (c->data,
1., 0., 0., 1.,
dx + c->instancer (varIdxBase, 0),
dy + c->instancer (varIdxBase, 0));
paint_glyph_dispatch (&(this+src), c);
c->funcs->pop_transform (c->data);
}
@ -865,7 +873,11 @@ struct PaintScale
void paint_glyph (hb_paint_context_t *c, uint32_t varIdxBase) const
{
c->funcs->push_transform (c->data, scaleX.to_float (), 0., 0., scaleY.to_float (), 0., 0.);
c->funcs->push_transform (c->data,
scaleX.to_float (c->instancer (varIdxBase, 0)),
0., 0.,
scaleY.to_float (c->instancer (varIdxBase, 1)),
0., 0.);
paint_glyph_dispatch (&(this+src), c);
c->funcs->pop_transform (c->data);
}
@ -899,9 +911,15 @@ struct PaintScaleAroundCenter
void paint_glyph (hb_paint_context_t *c, uint32_t varIdxBase) const
{
c->funcs->push_transform (c->data, 0., 0., 0., 0., (float)centerX, (float)centerY);
c->funcs->push_transform (c->data, scaleX.to_float (), 0., 0., scaleY.to_float (), 0., 0.);
c->funcs->push_transform (c->data, 0., 0., 0., 0., - (float)centerX, - (float)centerY);
float tCenterX = centerX + c->instancer (varIdxBase, 2);
float tCenterY = centerY + c->instancer (varIdxBase, 3);
c->funcs->push_transform (c->data, 0., 0., 0., 0., +tCenterX, +tCenterY);
c->funcs->push_transform (c->data,
scaleX.to_float (c->instancer (varIdxBase, 0)),
0., 0.,
scaleY.to_float (c->instancer (varIdxBase, 1)),
0., 0.);
c->funcs->push_transform (c->data, 0., 0., 0., 0., -tCenterX, -tCenterY);
paint_glyph_dispatch (&(this+src), c);
c->funcs->pop_transform (c->data);
c->funcs->pop_transform (c->data);
@ -939,7 +957,8 @@ struct PaintScaleUniform
void paint_glyph (hb_paint_context_t *c, uint32_t varIdxBase) const
{
c->funcs->push_transform (c->data, scale.to_float (), 0., 0., scale.to_float (), 0., 0.);
float s = scale + c->instancer (varIdxBase, 0);
c->funcs->push_transform (c->data, s, 0., 0., s, 0., 0.);
paint_glyph_dispatch (&(this+src), c);
c->funcs->pop_transform (c->data);
}
@ -972,9 +991,12 @@ struct PaintScaleUniformAroundCenter
void paint_glyph (hb_paint_context_t *c, uint32_t varIdxBase) const
{
c->funcs->push_transform (c->data, 0., 0., 0., 0., (float)centerX, (float)centerY);
c->funcs->push_transform (c->data, scale.to_float (), 0., 0., scale.to_float (), 0., 0.);
c->funcs->push_transform (c->data, 0., 0., 0., 0., - (float)centerX, - (float)centerY);
float s = scale + c->instancer (varIdxBase, 0);
float tCenterX = centerX + c->instancer (varIdxBase, 1);
float tCenterY = centerY + c->instancer (varIdxBase, 2);
c->funcs->push_transform (c->data, 0., 0., 0., 0., +tCenterX, +tCenterY);
c->funcs->push_transform (c->data, s, 0., 0., s, 0., 0.);
c->funcs->push_transform (c->data, 0., 0., 0., 0., -tCenterX, -tCenterY);
paint_glyph_dispatch (&(this+src), c);
c->funcs->pop_transform (c->data);
c->funcs->pop_transform (c->data);
@ -1011,8 +1033,9 @@ struct PaintRotate
void paint_glyph (hb_paint_context_t *c, uint32_t varIdxBase) const
{
float cc = cosf (angle.to_float() * (float)M_PI);
float ss = sinf (angle.to_float() * (float)M_PI);
float a = angle.to_float (c->instancer (varIdxBase, 0));
float cc = cosf (a * (float) M_PI);
float ss = sinf (a * (float) M_PI);
c->funcs->push_transform (c->data, cc, ss, -ss, cc, 0., 0.);
paint_glyph_dispatch (&(this+src), c);
c->funcs->pop_transform (c->data);
@ -1046,11 +1069,14 @@ struct PaintRotateAroundCenter
void paint_glyph (hb_paint_context_t *c, uint32_t varIdxBase) const
{
float cc = cosf (angle.to_float() * (float)M_PI);
float ss = sinf (angle.to_float() * (float)M_PI);
c->funcs->push_transform (c->data, 0., 0., 0., 0., (float)centerX, (float)centerY);
float a = angle.to_float (c->instancer (varIdxBase, 0));
float cc = cosf (a * (float) M_PI);
float ss = sinf (a * (float) M_PI);
float tCenterX = centerX + c->instancer (varIdxBase, 1);
float tCenterY = centerY + c->instancer (varIdxBase, 2);
c->funcs->push_transform (c->data, 0., 0., 0., 0., +tCenterX, +tCenterY);
c->funcs->push_transform (c->data, cc, ss, -ss, cc, 0., 0.);
c->funcs->push_transform (c->data, 0., 0., 0., 0., - (float)centerX, - (float)centerY);
c->funcs->push_transform (c->data, 0., 0., 0., 0., -tCenterX, -tCenterY);
paint_glyph_dispatch (&(this+src), c);
c->funcs->pop_transform (c->data);
c->funcs->pop_transform (c->data);
@ -1087,8 +1113,8 @@ struct PaintSkew
void paint_glyph (hb_paint_context_t *c, uint32_t varIdxBase) const
{
float x = tanf (xSkewAngle.to_float() * (float)M_PI);
float y = - tanf (ySkewAngle.to_float() * (float)M_PI);
float x = +tanf (xSkewAngle.to_float(c->instancer (varIdxBase, 0)) * (float) M_PI);
float y = -tanf (ySkewAngle.to_float(c->instancer (varIdxBase, 1)) * (float) M_PI);
c->funcs->push_transform (c->data, 1., y, x, 1., 0., 0.);
paint_glyph_dispatch (&(this+src), c);
c->funcs->pop_transform (c->data);
@ -1123,11 +1149,13 @@ struct PaintSkewAroundCenter
void paint_glyph (hb_paint_context_t *c, uint32_t varIdxBase) const
{
float x = tanf (xSkewAngle.to_float() * (float)M_PI);
float y = - tanf (ySkewAngle.to_float() * (float)M_PI);
c->funcs->push_transform (c->data, 0., 0., 0., 0., (float)centerX, (float)centerY);
float x = +tanf (xSkewAngle.to_float(c->instancer (varIdxBase, 0)) * (float) M_PI);
float y = -tanf (ySkewAngle.to_float(c->instancer (varIdxBase, 1)) * (float) M_PI);
float tCenterX = centerX + c->instancer (varIdxBase, 2);
float tCenterY = centerY + c->instancer (varIdxBase, 3);
c->funcs->push_transform (c->data, 0., 0., 0., 0., +tCenterX, +tCenterY);
c->funcs->push_transform (c->data, 1., y, x, 1., 0., 0.);
c->funcs->push_transform (c->data, 0., 0., 0., 0., - (float)centerX, - (float)centerY);
c->funcs->push_transform (c->data, 0., 0., 0., 0., -tCenterX, -tCenterY);
paint_glyph_dispatch (&(this+src), c);
c->funcs->pop_transform (c->data);
c->funcs->pop_transform (c->data);

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